radio network nodes, wireless device and methods performed on them to manipulate communication on a

专利摘要:
a first exemplary embodiment provides a method performed by a wireless device (10) to manipulate wireless device communication over a wireless communication network, wherein the wireless communication network comprises a first radio network node (12 ) and a second radio network node (13), in which the first radio network node (12) serves the wireless device (10). the wireless device receives an indication indicating a mapping between one or more channel state information reference signals, csi-rs and one or more random access channel configurations, rach. the wireless device receives one or more csi-rss from the second radio network node (13), and selects a csi-rs from among the one or more csi-rss received. the wireless device additionally initiates a random access procedure towards the second radio network node (13) using at least part of the split configuration mapped to the selected csi-rs.
公开号:BR112019019876A2
申请号:R112019019876
申请日:2018-02-19
公开日:2020-04-22
发明作者:L J Da Silva Icaro；Rune Johan；Rugeland Patrik
申请人:Ericsson Telefon Ab L M；
IPC主号:

专利说明:

RADIO NETWORK, WIRELESS DEVICE AND METHODS PERFORMED IN THE SAME TO HANDLE COMMUNICATION IN A WIRELESS COMMUNICATION NETWORK
INTRODUCTION [001] The modalities in this document refer to radio network nodes, a wireless device and methods performed on them in relation to wireless communication. In addition, a computer program and a computer-readable storage medium are also provided in this document. In particular, the modalities in this document refer to the manipulation of communication, for example, enabling handover or establishment of a secondary cell of the wireless device in a wireless communication network.
[002] In a typical wireless communication network, wireless devices, also known as wireless communication devices, mobile stations, stations (STA) and / or user equipment (UE), communicate through a Network Radio access (RAN) with one or more core networks (CN). The RAN covers a geographical area that is divided into service areas or cell areas, with each service area or cell area being served by the radio network node, such as an access node eg a Wi- Fi or a radio base station (RBS), which in some networks can also be called, for example, a NodeB or eNodeB. The service area or cell area is a geographic area where radio coverage is provided by the access node. The access node operates on radio frequencies to communicate over an air interface with wireless devices within the range of the radio network node. The radio network node communicates over a downlink (DL) with the wireless device and the wireless device communicates over an uplink (UL) with the radio network node.
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Trad. Priority Doc: US 62 / 476,052 [003] A Universal Mobile Telecommunications System (UMTS) is a third generation telecommunication network, which evolved from the second generation Global System for Mobile Communications (GSM) (2G). The UMTS terrestrial radio access network (UTRAN) is essentially a RAN that uses multiple broadband code division (WCDMA) access and / or High Speed Packet Access (HSPA) to communicate with user equipment. In a forum known as the Third Generation Partnership Project (3GPP), telecommunications providers specifically propose and agree on standards for present and future generation networks and for UTRAN, and investigate the improved data rate and the radio capability. In some RANs, for example as in UMTS, several radio network nodes can be connected, for example, by land lines or microwave, to a controller node, such as a radio network controller (RNC) or a radio controller. base station (BSC), which supervises and coordinates various activities of the plural radio network nodes connected to it. RNCs are typically connected to one or more core networks.
[004] The specifications for the Evolved Package System (EPS) were completed within 3GPP and this work continues in the next versions of 3GPP, such as 4G and 5G networks such as Novo Rádio (NR). EPS comprises the Evolved Universal Terrestrial Radio Access Network (E-UTRAN), also known as the Long Term Evolution Radio Access Network (LTE), and the Evolved Packet Core (EPC), also known as the network System Architecture Evolution (SAE) nucleus. E-UTRAN / LTE is a 3GPP radio access technology in which radio network nodes are directly connected to the core EPC network. As such, the EPS Radio Access Network (RAN) has an essentially flat architecture that comprises radio network nodes connected directly to one or more core networks.
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Trad. Priority Doc: US 62 / 476,052 [005] With emerging 5G technologies, the use of many transmit and receive antenna elements is of great interest as it is possible to use beamforming, such as beamforming. transmission side and receiving side beam. Transmission side beam formation means that the transmitter can amplify transmitted signals in one selected direction or directions, while suppressing transmitted signals in other directions. Similarly, on the receiving side, a receiver can amplify signals from the selected direction or directions, while suppressing non-target signals from other directions.
[006] The beam formation allows the signal to be stronger for an individual connection. On the transmission side, this can be achieved by a concentration of the transmitted power in the target direction (or directions), and on the receiving side, this can be achieved by an increased receiver sensitivity in the target direction (or directions). This beam formation improves throughput and connection coverage. It is also possible to reduce the interference of non-target signals, thereby enabling multiple simultaneous transmissions over multiple individual connections with the use of the same resources in the time and frequency grid, so-called Multiple Inputs Multiple Outputs (MIMO) of multiple users.
[007] The programmed reference signals, called channel status information reference signals (CSI-RS), are transmitted when necessary for a particular connection. The CSIs comprise Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI) and Classification Indicator (IR). The CQI is reported wirelessly to the radio network node. The wireless device indicates the modulation scheme and the encoding scheme for the radio network node. To predict the downlink channel condition, CQI feedback from the wireless device can
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Trad. Priority Doc: US 62 / 476,052 be used as an entry. The CQI report can be used based on PMI and RI. The PMI is indicated by the wireless device for the radio network node, whose precoding matrix can be used for downlink transmission that is determined by RI. The wireless device additionally indicates the RI for the radio network node, that is, the number of layers that must be used for downlink transmission to the wireless device. The decision as to when and how to transmit the CSI-RS is made by the radio network node and the decision is signaled to the wireless devices involved with the use of a so-called measurement concession. When the wireless device receives a measurement grant, it measures on a corresponding CSI-RS. The radio network node can choose to transmit CSI-RSs to a wireless device only with the use of beam (s) that are known to be strong for that wireless device, to allow the wireless device to report more detailed information about those bundles. Alternatively, the radio network node may choose to transmit CSI-RSs also using a beam (s) that is not known to be strong for that wireless device, for example to enable rapid detection of new beam (s) in the in which case the wireless device is moving.
[008] The radio network nodes of a Novo Rádio (NR) network transmit other reference signals as well. For example, radio network nodes can transmit so-called demodulation reference signals (DMRS) when transmitting control information or data to a wireless device. Such transmissions are typically made using beam (s) which are known to be strong for that wireless device.
[009] In LTE, the main objective of CSI-RSs is to obtain channel status feedback for up to eight transmit antenna ports to assist the radio network node in its pre-coding operations. Release 10 supports the
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Trad. Priority Doc: US 62 / 476,052 CSI-RS transmission for 1, 2, 4 and 8 transmission antenna ports. CSIRSs also enable the wireless device to estimate CSIs for multiple cells instead of just its serving cell, to support multi-cell cooperative transmission schemes. It is observed that the purpose of CSI-RS measurements in LTE is not to support cross-mobility cells.
[010] In LTE, a wireless RRC CONNECTED device can perform a handover from a server cell to a target cell by receiving the server cell from a handover command, which is an RRCConnectionReconfiguration message. It contains all the information necessary for the wireless device to access the target cell, such as the target cell physical cell identifier (PCI) and the target cell's Random Access Channel (RACH) configuration.
[011] In the 3GPP TS 36.331 v.14.0.0 Radio Resource Control (RRC) specification, this information is encoded in the mobilitycontrol Info element (IE) present in the RRCConnectionReconfiguration message to indicate for the wireless device a handover. For RACH information, there is a common part, an IE part of radioResourceConfigCommon and another optional part that is dedicated (for example, a specific wireless preamble for random access without contention) encoded in rach-ConfigDedicated. Some of these lEs are highlighted in Fig. 1a.
[012] RACH configCommon IE containing generic RA parameters described in TS36.331 v.14.0.0 is shown in Fig. Lb.
[013] RACH configDedicated IE containing dedicated RA parameters described in TS36.331 v.14.0.0 is shown in Fig. Lc.
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Trad. Priority Doc: US 62 / 476,052 [014] If mobilityControlInfo contains the dedicated RACH information, the wireless device will use it for random access without contention to the target cell, which must expect a certain preamble, otherwise the wireless device must simply perform random access based on contention by the configuration provided in the common RACH configuration, which is part of mobilityControlInfo.
[015] The Novo Rádio (NR) can be designated as a system to support a wide range of frequencies, including bands in which the beam formation must be used to improve coverage and / or at least to increase the signal-interference ratio more noise (SINR) of the data channel so that the wireless device transmits / receives at very high data rates.
[016] Regarding mobility in the state of RRC CONNECTED, the following can be considered:
[017] 1 Access information (for example, RACH configuration) for the target cell is provided in a handover command (HO) to enable the wireless device to access the cell without reading the system information. Access information may include beam-specific information (if any).
[018] Additionally, the following can also be considered:
At least the cell identity (ID) and all the information required to access the target cell will be included in the HO command.
For at least some cases, the information required for contention-based access and non-contention access can be included in the HO command.
To be studied what information related to the beam of the target cell may be required.
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Trad. Priority Doc: US 62 / 476,052 [019] A wireless device would access the target cell in the state of RRCCONNECTED in NR under current assumptions.
[020] RAN1 terminology considered that at least the combination of NR (New Radio Primary Synchronization Signal (NR-PSS) and / or New Radio Secondary Synchronization Signal (NR-SSS)) and Channel Physical Diffusion (PBCH) constitutes a so-called Synchronization Signal Block (SS). The SS block can also contain a Tertiary Synchronization Signal (TSS) to indicate the timing of the Orthogonal Frequency Division Multiplexing (OFDM) symbol or equivalent information, but this is still for the further study in RAN1. A RRC CONNECTED wireless device attempting to access a target cell must consider that the SS Block can be transmitted in the form of repetitive signal bursts of SS Block transmissions (denoted SS Burst), in which an SS burst consists of several SS Block transmissions in sequence, one after the other at a time. Additionally, a set of SS Bursts can be grouped together (denoted SS Bursts Set), where the SS bursts in SS Bursts Sets are considered to have some relationship with each other. Both SS Blasts and SS Blast Sets have their respective periodicity determined. In single beam scenarios, the network could set up time repetition within an SS burst over a wide beam. In multiple beam scenarios, at least some of these signals and physical channels (for example, SS Block) would be transmitted in multiple beams, which could be done in different ways depending on the network implementation, as shown in Fig. Ld. Examples of different configurations of an SS Burst Set. Top: Repetition of time within a burst of SS over a wide beam. Medium: Beam scan of a small number of beams using only one SS burst in the SS burst set. Bottom:
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Beam scan of a larger number of beams using more than one SS Burst in the SS Burst Set to form a full scan.
[021] Which of these three alternatives to implement is a choice of the network provider. This choice depends on the exchange between i) the overhead caused by periodic transmission and always in narrow-beam scans vs. ii) the delays and signals required to configure the wireless device to find a narrow beam for the Physical Downlink Shared Channel (PDSCH) / Physical Downlink Control Channel (PDCCH). The implementation shown in the top figure prioritizes i), while the implementation shown in the bottom figure prioritizes ii). The figure in the middle case is an intermediate case, where a wide beam scan is used. In this case the number of beams to cover the cell is reduced, but in some cases further refinement is necessary for the formation of the narrow gain beam of the PDSCH.
[022] CSI-RS support for beam selection in LTE and potential trends in NR.
[023] Work on the Full-Size MIMO (FD) specification Rel-13 in LTE includes mainly support for LTE beam formation. A RRC CONNECTED wireless device can be configured with a set of so-called Channel State Information Reference Signal (CSI-RS) processes that can be associated on the network side to different DL beams. These DL beams can be transmitted in different directions to different subframes. With beamformed CSI-RS, the wireless device can measure Channel State Information (CSI) on CSI-RS resources that are beamed in different directions. In other words, with beam-formed CSI-RS, the DL beam directions are actually mapped to the CSI-RS resources configured so that the report can be
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Trad. Priority Doc: US 62 / 476,052 associated with DL bundles on the network side.
[024] Figure le and Figure If show that the MIMO specification of FD Rel-13 in LTE supports an improved CSI-RS report referred to as Class B for beam-formed CSI-RS. In the same, a RRC CONNECTED LTE wireless device can be configured with K bundles (where 8> K> 1) where it can be 1,2,4 or 8 port numbers of each bundle. For feedback purposes such as PMI, RI and CQI, there is a CSI-RS Resource Indicator (CRI) for CSI-RS. The wireless device reports CRI to indicate the preferred beam in which the CRI is broadband, RI / CQI / PMI is based on the legacy codebook (ie Rel-12) and the CRI reporting period is a multiple entire RI. For Rel-14 upgrades to Full Dimension MIMO (eFD), the following is being considered as potential upgrades, such as extending the CSI-RS antenna port number up to 32, that is, CSI-RS ports {20 , 24, 28, 32} and the introduction of aperiodic CSI-RS.
[025] CSI-RS can be the primary RS for beam management in NR. In comparison with the CSI-RS formed by beam in LTE, the additional use case would perhaps be the analog beam scan, possibly also used for fine time and frequency (T / F) tracking. Therefore, more flexibility for the CSI-RS from NR to NR is envisaged as:
[026] Possibly transmitted in 1, 2 or 4 symbols;
[027] Configurable bandwidth (that is, not always complete system as in LTE);
[028] Orthogonal Frequency Division Multiplexing (OFDM) symbol can only load CSI-RS;
[029] Aperiodic, semi-persistent and periodic transmissions;
[030] Most of the use of CSI-RS in LTE is related to measurement to support beam management. In addition to that, the CSI-RS can be used to
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Trad. Priority Doc: US 62 / 476,052 Radio Resource Management (RRM) measurements to support mobility between cells, that is, movement between cells, although details have not been defined.
[031] Different beamforming implementations for SS Block transmissions can be considered in the case of handovers and the target cell can implement one of these different beamforming implementations.
[032] In the case at the top in Fig. Ld, where a single beam transmits the SS Burst Set, the handover command (HO) can contain a unique RACH configuration for the target cell. Once the wireless device receives the HO command, the wireless device will access the target and a random access procedure will be triggered by the wireless device that sends a random access preamble. Unless directional reciprocity, that a device, node, radio base station or Transmission and Reception Point (TRP) supports means of directional reciprocity that can form a transmission beam based on an incoming transmission, so that the transmission is focused in the opposite direction from the direction from which the received transmission was received (for example, by selecting suitable pre-coding parameters and / or antenna weights), it is assumed, the target cell will transmit the random access response ( RAR) by scanning in all directions until the wireless device detects and transmits the complete handover message (or something equivalent to notify that the handover has been completed on the wireless device) or by transmitting the RAR with time repetition and waiting for the full HO message. In either case, after handover, depending on data / service rates, the target wireless device's performance requires the target cell to trigger a beam refinement beam management operation, enabling the device
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Trad. Priority Doc.: US 62 / 476,052 wirelessly use a narrow beam for PDCCH / PDSCH on the target. This may require additional RRC configuration, additional measurements and additional reporting or delay mechanisms to perform measurements on the target cell, for example, based on CSI-RS processes configured for beam management. In other words, after the handover, it may take some time before the wireless device can access a narrow beam in the target cell again so it may take some time before the target cell can start to beam the PDSCH with high gain.
[033] In the case of the bottom, where multiple narrow beams are used to transmit the SS Burst Set, the handover command may contain multiple RACH configurations for the target cell, possibly associated with SS Block beams or groups of beams SS block of the target cell. Once the wireless device receives the handover command it can select an SS Block beam in the target cell, check how it maps to the RACH configuration received by SS Block beam and initiates a random access procedure by sending a random access preamble associated with a target cell SS Block bundle or a group of SS Block bundles. A possible mapping is shown in figure lg.
[034] Even without directional reciprocity, the implementation makes it possible for the target cell to transmit the RAR in the strongest DL beam (corresponding to the received / selected UE SS Block beam) that covers the wireless device thanks to the mapping between the RACH configuration (including the preamble) and the target cell SS Block DL beam. This allows the wireless device to quickly access a narrow beam at the right target after handover.
[035] Despite its benefit, such a solution has disadvantages in terms of rather high overhead and access latency, especially considering
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Trad. Priority Doc: US 62 / 476,052 facts below:
1) Most of the time that SS Blast SS Block narrow beam scanning is being used, handovers are not even taking place. Therefore, using the solution to provide quick access to narrow beams in a target cell can be very expensive without clear benefits in some cases.
2) In many cases, handovers would not actually require a wireless input device to depend on a narrow high-gain beam at the target. In some cases, when the wireless device uses a low data rate service or is not even transmitting data continuously, broad beam access at the target could be sufficient. Therefore, overhead would not be necessary in some handovers.
[036] In the case of the medium (where beam scanning is considered but wide beams are used to reduce overhead). However, this solution also does not consider the facts 1) and 2) previously described since it is a static configuration. In other words, although the solution tries to enable the wireless device to access a DL beam at the target after handover, in some cases where the wireless device requires a refined DL beam, additional steps will be required anyway at the target for beam refinement.
[037] In summary, by defining as narrow beams as possible in the SS Burst Set, as shown at the bottom of Figure ld, accelerates wireless device access to a very narrow beam. On the other hand, the cost for this is the transmission of periodic beam scans of the SS Block in narrow beams, which represents a significant overhead considering that these periods can be mainly useful when the network, for example, a neighboring gNB considers a cell handover to a wireless device.
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During initial access, it could state that data connectivity has not yet started, therefore, the wireless device can start with a broad DL beam transmission until the network sets up a set of CSI-RS processes for beam refinement / selection within the wide beam for higher data rates. However, in the case of handovers, a wireless device may already have a high data rate service in the server cell so that a handover to a wide beam and then performs beam refinement, shown in Figure 1h, can represent a non-continuous handover for at least some services. This can lead to reduced or limited performance of the wireless communication network.
[038] An objective of the modalities in this document is to enable improved performance of a wireless communication network when using beam formation in the wireless communication network.
[039] According to one aspect the object is achieved by providing a method performed by a wireless device to handle wireless device communication over a wireless communication network. The wireless communication network comprises a first radio network node and a second radio network node, the first radio network node of which serves the wireless device. The wireless device receives an indication that indicates a mapping between one or more channel status information reference signals and one or more random access channel configurations. The wireless device receives one or more RSs from the second radio network node, and additionally selects one RSs from among the one or more RSs received, for example the highest measured signal quality. The wireless device additionally initiates a random access procedure towards the second radio network node using at least part of the RACH configuration mapped to the one or more selected RSs.
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Trad. Priority Doc: US 62 / 476,052 [040] According to another aspect the object is achieved by providing a method performed by a wireless device to handle wireless device communication in a wireless communication network. The wireless communication network comprises the second radio network node and a first radio network node. The first radio network node serves the wireless device. The second radio network node is configured with a mapping between one or more reference signals and one or more random access channel configurations. The second radio network node transmits one or more reference signals associated with, for example, narrow beams and detects a reference signal, outside the one or more reference signals transmitted, being selected by the wireless device on which the second network node radio detects a random access procedure from the wireless device started associated with some random access channel settings being associated with the reference signal. For example, the second radio network node receives a random access request from the wireless device using at least part of the random access channel configuration, for example, a random access preamble, mapped to a certain CSI- RS and thus detects the selected CSI-RS on the wireless device. The second radio network node then uses the beam associated with the CSI-RS to carry out data for the wireless device.
[041] According to another aspect, the object is achieved by providing a method performed by the first radio network node to handle communications from a wireless device over a wireless communications network. The first radio network node serves the wireless device and a wireless communication network additionally comprises a second radio network node. The first radio network node transmits an indication to the wireless device that indicates a mapping between one or more reference signals and
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Trad. Priority Doc.: US 62 / 476,052 one or more access channel configurations.
[042] A computer program comprising instructions is provided in this document, which, when executed on at least one processor, causes at least one processor to execute the methods in this document, as performed by the wireless device, by the first radio network node or the second radio network node. In addition, a computer-readable storage medium, which has a computer program stored therein that comprises instructions that, when executed on at least one processor, cause at least one processor to execute the methods in this document as performed by the device wireless, the first radio network node or the second radio network node is provided in this document.
[043] In addition, a wireless device, a first radio network node and a second radio network node configured to perform the methods provided in this document.
[044] Some advantageous modalities in this document are to activate the wireless device to access very quickly a narrow beam gain DL in a target cell and / or secondary cell for uninterrupted mobility and effective aggregation of dual carrier / connectivity. At the same time, modalities in this document provide a lower overhead alternative for the transmission of narrow beam gain over static signals, such as SS Block in NR, by activating only that additional RS in the necessary handover executions as when the wireless device is using a service in a server cell requiring high data rates (and having a narrow beam in the server cell) and, for uninterrupted mobility, this requires quick access to a narrow beam at the target as soon as it connects to it. Another case where this may be necessary is when the LTE anchor cell is assembling
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Trad. Priority Doc: US 62 / 476,052 dual connectivity (otherwise a long delay mount makes this useless then when the wireless device establishes a secondary cell the data transmission has already occurred).
[045] The modalities in this document allow the network to implement the transmission of SS Bursts in wide beams and, only when required, allow a wireless device that performs a handover to quickly access a narrow beam associated with a CSI- RS on the second radio network node or quickly access a narrow beam of DL on the second radio network node for carrier aggregation and / or dual connectivity. This allows uninterrupted mobility for high data rate services and, at the same time, does not require the network to implement a solution with high overhead, or even high latency, for a fixed overhead. In addition, this is achieved without the additional overhead of a beam refinement procedure to be performed after the completion of the handover. By enabling the wireless device to use a RACH configuration mapped to a selected RS resource, it is used in a way that leads to improved wireless network performance.
ADDITIONAL INFORMATION [046] The modalities will be described in more detail in relation to the attached drawings, in which:
Figure 1 shows parts of the MobilityControlInfo information element described in TS 36.331 with highlighted / underlined parameters;
Figure lb shows IE of RACH-ConfigCommon containing generic AR parameters described in TS 36.331;
Figure 1c shows the RACH-ConfigCommon information element containing dedicated RA parameters described in TS 36.331;
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Figure Id shows examples of different configurations of an SS Burst Set;
Figure 1 shows CSI-RS formed by LTE beam
Figure 1f shows CSI-RS formed by LTE beam;
Figure lg shows where each SS Block contains a mapping between the RACH configuration and the strongest DL beam that transmits the SS Block. In this example, each PRACH occasion / resource is associated with two SS Block bundles;
Figure 1h shows an example showing a handover execution followed by beam refinement. The step may be necessarily in the case of broad beam scan transmissions from SS Blast;
Figure 2 shows a schematic overview showing a wireless communication network according to the modalities in this document;
Figure 3 is a schematic combined flowchart and signaling scheme according to the modalities in this document;
Figure 4 shows subframes allocated for different signals such as SS bursts and reference signals for narrow beams;
Figure 5 shows where a target / secondary cell transmits the SS burst in a single beam so that the additional RS (such as CSI-RS) provides a means to enhance RACH reception and / or enable the target cell to perform selection DL beam as part of the handover execution or the establishment of a secondary cell;
Figure 6 shows where a target / secondary cell transmits the SS burst in multiple wide beams so that the additional RS (such as CSI-RS) provides a means to enhance even the additional reception of RACH and / or enable the target cell perform the selection of DL beam as part of the handover execution or the establishment of a secondary cell;
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Figure 7 shows where an additional RS is used to perform a handover or to establish a secondary cell / in addition to indicating the exact TRP (radio network node) in a target cell / service area;
Figure 8a shows a MobilityControlInfo information element;
Figure 8b shows a RACH-ConfigDedicated information element
Figure 9 is a combined flowchart and signaling scheme according to the modalities in this document;
Figure 10 is a block diagram depicting a wireless device according to the modalities in this document;
Figure 11 is a block diagram showing a first radio network node according to the modalities in the present document;
Figure 12 is a block diagram showing a second radio network node according to the modalities in this document.
Figure 13 is a block diagram of a wireless network according to modalities in the present document; and
Figure 14 is a block diagram of an UE according to modalities in this document.
[047] The modalities in this document refer in general to wireless communication networks. Figure 2 is a schematic overview showing a wireless communication network 1. Wireless communication network 1 comprises one or more RANs and one or more CNs. Wireless communication network 1 can use a different technology or several different technologies, such as New Radio (NR), Wi-Fi, LTE, LTE-Advanced, Fifth Generation (5G), Multiple Access by Broadband Code Division ( WCDMA), Global System for Mobile Communications / Enhanced Data Rate for Evolution of GSM (GSM / EDGE), Worldwide Interoperability for Microwave Access (WiMax), or Ultra Mobile Broadband (UMB), just to mention a few
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Trad. Priority Doc: US 62 / 476,052 possible implementations. The modalities in this document refer to recent technological trends that are of particular interest in a 5G context like NR. However, the modalities are also applicable in addition to the development of existing wireless communication systems such as WCDMA and LTE.
[048] In a wireless communication network 1, wireless devices such as a wireless device 10 such as a mobile station, a STA without an access point (non-AP), a STA, user equipment and / or a wireless terminal, communicate through one or more Access Networks (AN), for example, RAN, with one or more core networks (CN). It should be understood by those skilled in the art that this wireless device is a non-limiting term meaning any terminal, wireless communication terminal, user equipment, Machine Type Communication device (MTC), Device to Device terminal (D2D) , or node, for example, smartphone, laptop, mobile phone, sensor, relay, mobile tablet, or even a small base station capable of communicating using radio communication with a network node within an area served by the network node. network.
[049] Wireless communication network 1 comprises a first radio network node 12, also called merely the radio network node, which provides radio coverage in a geographical area, a first service area 11 or a first beam / group of beams of a first radio access technology (RAT), such as NR, LTE, Wi-Fi, WiMAX or similar. The first radio network node 12 can be a transmit and receive point for example a radio network node such as a Wireless Local Area Network (WLAN) access point or an Access Point Station (AP STA) , an access node, an access controller, a base station, for example, a radio base station like a NodeB, an evolved Node B (eNB, eNode B), a transceiver station
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Trad. Priority Docs: US 62 / 476,052 base, a remote radio unit, an Access Point base station, a base station router, a radio base station broadcast arrangement, an independent access point or any other network unit or node capable of communicating with a wireless device within the service area served by the first radio network node 12 depending for example on the first radio access technology and terminology used. The first radio network node 12 can be referred to as a server network node where the first service area can be called the source beam, and the service network node serves and communicates with wireless device 10 under form of DL transmissions to the wireless device 10 and UL transmissions from the wireless device 10.
[050] A second radio network node 13 can additionally provide radio coverage in the second service area 14 or a second beam / group of beams from a second radio access technology (RAT), such as NR, LTE, WiFi, WiMAX or similar. The first RAT and the second RAT can be the same or different RATs. The second radio network node 13 can be a transmit and receive point, for example, a radio network node such as a Wireless Local Area Network (WLAN) access point or an Access Point Station (AP) STA), an access node, an access controller, a base station, for example, a radio base station like NodeB, an evolved Node B (eNB, eNode B), a base transceiver station, a remote radio unit, an Access Point base station, a base station router, a radio base station transmission arrangement, an independent access point, or any other network unit or node capable of communicating with a wireless device within the served area by the second radio network node 13 depending for example on the second radio access technology and terminology used. The second radio network node 13 can be referred to
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Trad. Priority Doc.: US 62 / 476,052 as a neighboring network node in which the second service area 14 can be called a group of neighboring bundles with neighboring bundles or target bundles.
[051] It should be noted that a service area can be denoted as a cell, a beam, a mobility measurement beam, a beam group or the like to define a radio coverage area. The radio network nodes transmit additional RSs over a respective service area. Therefore, the first and second radio network nodes can transmit CSIRSs or beam reference signals (BRS), repeatedly, in time, in a large number of different directions using many Tx beams as deemed necessary to cover a operational area of the respective radio network node. Therefore, the first radio network node 12 provides radio coverage in the first service area with the use of a first reference signal, for example, first CSI-RS, for the first service area 11 in a communication network without wire 1. The second radio network node 13 provides radio coverage in the second service area 14 with the use of a second reference signal, for example, according to CSI-RS, for the second service area 14 in a network. wireless communication. These reference signals, first and second CSI-RSs, can be initiated by requesting a radio network node, for example, a neighboring radio network node, or configured to be sent continuously.
[052] According to the modalities in this document, the wireless device use of one or more RSs also called additional RSs, for example, CSI-RS, from a target service area, such as the second service area 14 , during a handover run or secondary cell establishment to enable the target service area to immediately have the refinement / beam selection of a narrow beam for high data rate transmission of eg PDSCH, without the need to increase overhead
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Trad. Priority Doc: US 62 / 476,052 for the transmission of an SS Blast in periodic scans of narrow beams.
[053] It should be noted that, in a general scenario, the term radio network node can be replaced by a point of transmission and reception. The key observation is that it must be possible to distinguish between the transmit and receive points (TRPs), typically based on the RSs or on different synchronization signals and transmitted BRSs. Several TRPs can logically be connected to the same radio network node, but if they are geographically separated, or are pointing in different propagation directions, the TRPs will be subject to the same problems as different radio network nodes. In subsequent sections, the terms radio network node and TRP can be considered interchangeable.
[054] It should be further noted that a wireless communication network must be virtually sliced into a number of Network / RAN slices, each Network / RAN slice supports one or more types of wireless devices and / or one or more types of services ie each network slice supports a different set of features. Network slicing introduces the possibility that network / RAN slices are used for different services and use cases and these services and use cases can introduce differences in the functionality supported on the different network slices. Each network slice / RAN can comprise one or more network nodes or elements of the network nodes providing the services / features for the respective network slice. Each network slice / RAN can comprise a network node such as a RAN node and / or a core network node.
[055] Figure 3 is a schematic combined flowchart and signaling scheme that depict some modalities in this document in which it is defined which beam in relation to the information of the second network node
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Trad. Priority Doc: US 62 / 476,052 radio 13 is reported for wireless device 10 and how it can be used by wireless device 10. The modalities in this document address the problem mentioned by providing a method between network nodes radio and the wireless device that communicate over a radio interface.
[056] Action 301. The first radio network node 12 can be configured, for example, or can receive a mapping of one or more reference signals to one or more random access channel (RACH) configurations for a service area. target, for example, of the second radio network node 13. The mapping can be between RACH configurations and additional target RSs such as BRSs or CSI-RSs.
[057] Action 302. The first radio network node 12 transmits the mapping, or a mapping indication, of the reference signal to one or more random access channel configurations. For example, the first radio network node 12 provides a RRC CONNECTED wireless device with a mapping between the RACH configurations and the reference (RS) signals that can be transmitted with high gain beam formation, which are different from static signals transmitted in wide beams. The static signals are those transmitted in the SS Block, such as NR-PSS / NR-SSS / TSS / DMRS for PBCH, while the additional RS is a CSI-RS. On a network side, the additional RS is associated with the narrow bundles while the SS Blocks are bundled with wide bundles or vice versa, the use cases for these different configurations will be described later.
[058] Mapping can be provided for wireless device 10 when the first radio network node 12 decides to handover wireless device 10 from the first service area to the second service area and / or when the first radio node radio network 12 wants to establish dual connectivity,
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Trad. Priority Doc: US 62 / 476,052 carrier aggregation or equivalent. This may be the case where wireless device 10 is connected to LTE and the second service area is an NR cell candidate or a potential secondary cell for dual connectivity / restricted interoperation between RAT and NR-LTE. Therefore, the mapping or mapping indication can be provided to the wireless device 10 in an RRC message such as RRCConnectionReconfiguration associated with a target (or candidate for SCell) on the same RAT or on a different RAT. The indication can be an index to a table or values of the mapping as such or similar.
[059] The method can comprise the wireless device 10 that receives a command that triggers the wireless device 10 to access another cell as in a handover (as in the case of a handover) or in addition to a primary cell, as in the case the establishment of a secondary cell (for dual connectivity and / or carrier aggregation). In the case of handover, for example, this will be an RRCConnectionReconfiguration message with the mobilityControlInfo IE that contains a set of candidate RACH configurations of the target cell where 1 <K <N, where N is the number of narrow DL beams or CSI-RSs made available by the target cell / service area.
[060] Each of these RACH K configurations is associated with a CSI-RS N or subset of CSI-RSs N made available by the target cell / service area at least during the time that the wireless device is trying to access the target cell / secondary / service area (that is, handover or secondary cell establishment). There should be no more than one RACH configuration for a single CSI-RS. But multiple CSI-RSs can share the same RACH configuration.
[061] The additional RS can be a CSI-RS used mainly for intracellular beam management but also used for mobility between
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Trad. Priority Doc: US 62 / 476,052 cells and / or secondary cell establishment and beam selection simultaneously. Therefore, when CSI-RS is mentioned, it should be understood as a modality, while it could be any other RS used for beam management that is not transmitted in an SS Block. In the particular case of CSI-RS, there may be parameters associated with the CSI-RS formed by a beam such as: its bandwidth; the time domain resources being transmitted as subframes and the Orthogonal Frequency Division Multiplexing (OFDM) symbol within the subframes; synchronization reference in the time domain to base the subframe shift; frequency domain feature (since there is no full bandwidth CSI-RS); sequence and association to the virtual cell ID or any other identifier that allows the wireless device 10 to derive the sequence from CSI-RS, in case the blind detection is unexpected.
[062] The RACH configuration in this context refers to information such as the time and frequency resources for the RACH preamble to be used during random access to the specified cell or a certain preamble or similar. As a result, there may be more common parameters in addition to those parameters used to perform narrow beam selection.
[063] The RRC message that triggers wireless device 10 to access the secondary / target cell / service area may contain additional N RS configuration (which can be CSI-RS). In this context, N can be greater than or equal to one. It is observed that these additional RSs are transmitted or associated with different DL beams. This setting on the additional target / secondary cell RS can inform the wireless device 10 on which the RS subframes are transmitted, for how long, what periodicity (if they are periodic), how long they last (for example , in terms of number of subframes), etc.
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Trad. Priority Doc: US 62 / 476,052 [064] Alternatively, if only the RACH mapping and / or an indication flag is provided in the message, wireless device 10 may consider a previously received configuration for additional RS (or additional RSs) ) associated with the target / secondary cell. It is also possible that the message contains a delta configuration that changes / updates the RS configuration such as adding RSs (which would imply adding the transmission in additional DL bundles), removing RS (s), etc.
[065] The message as the RRC message that states that the wireless device 10 of the mapping may also contain an indication about target cell / secondary cell synchronization assumptions compared to the server / primary cell. Upon receiving the mapping between the RACH configurations and the additional RSs, the wireless device 10 can then know that detection before measurements may or may not require additional synchronization. If required, the message may also contain the physical cell identifier (PCI) as an implicit way of informing the wireless device 10 that additional RS detection may require an additional synchronization step.
[066] Action 303. The second radio network node 13 transmits narrow beam reference signals, for example, CSI-RSs or BRSs.
[067] Action 304. Wireless device 10 selects a narrow beam, that is, a selected reference signal, for example, based on measurements on the received CSI-RSs. The wireless device 10 can thus perform a beam selection while performing a handover or dual connectivity configuration. For example, after receiving an RRC message from the server cell that triggers access to the target cell / secondary cell (for example, RRCConnectionReconfiguration), wireless device 10 fetches the CSI-RS associated with the target service area, performs measurements and selects the CSI-RS associated with the best quality or intensity, for example, based on the best Power
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Trad. Priority Doc: US 62 / 476,052
Received Reference Signal (RSRP), Noise Ratio plus Signal to Interference (SINR), Signal-to-Noise Ratio (SNR) or some other measure of signal strength or signal quality. In other words, wireless device 10 can indirectly select the strongest narrow DL beam that transmits or is associated with CSI-RS. Thus, wireless device 10 receives and measures signal strength or quality (Q) from CSI-RSs, for example, from the first and second radio network nodes. For example, wireless device 10 can determine which CSI-RS has the highest Q among CSI-RSs.
[068] Thus, after receiving the RRC message to access a secondary cell and / or target cell or service area, the wireless device can:
[069] Sub-section 3.1) Search for the CSI-RS associated with the target cell;
[070] Sub-section 3.2) Perform measurements based on the detected additional RS;
[071] Subaction 3.3) Selects the RS associated with the best quality.
[072] In subsection 3.1), if the RRC message in action 302 contains an indication that the target cell or secondary cell is synchronized with the server or primary cell, wireless device 10 can use its primary cell synchronization source as a reference (including its subframe timing) and seek a CSI-RS after receiving the RRC message (in the case of a handover that would be during the so-called synchronization phase). This search can be done based on the additional RS configuration, that is, a specific subframe deviation associated with the server cell synchronization source used in connected mode. If the message does not contain this indication, wireless device 10 can use the target and / or secondary physical cell identifier to synchronize with the target and / or secondary cell before detecting CSI-RSs or using a previously acquired synchronization with the same cell (in case the time does not elapse). As mentioned above, before actually detecting a CSI-RS in the target cell, wireless device 10 may have
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Trad. Priority Doc.: US 62 / 476,052 an approximate synchronization with the DL transmissions of the target cell. Therefore, the wireless device 10 must first receive the target cell's sync signal, that is, the NR-PSS / NR-SSS, which is part of the SS Block (note that it may be sufficient for the device without wire 10 receive the NRPSS / NR-SSS, but can skip the reception of the rest of the SS Block). The wireless device 10 can receive the NR-PSS / NR-SSS and thus acquire DL synchronization in the target cell and can detect the transmission (or transmissions) of CSI-RS in an integrated procedure after receiving the HO command. in the server cell. Alternatively, wireless device 10 may have previously received the NRPSS / NR-SSS from the target cell, for example, for the purpose of neighboring cell measurements for potential handover considerations, and if it has not been long since the last wireless device reception of the target cell's NR-PSS / NR-SSS (where the acceptable time may depend, for example, on the considered and measured movements of the wireless device 10 and / or the drift considered by the internal device clock without wire in relation to the target cell timing), the wireless device 10 may consider its DL synchronization previously acquired with the target cell to still be valid and may go directly to the detection of the CSI-RS transmission (or transmissions) (without a reception NR-PSS NR-SSS) after receiving the HO command.
[073] In sub-section 3.2), after discovering the CSI-RS resources, the wireless device 10 can perform measurements according to the previously obtained configuration or based on some rule predefined in the standard. These measurements can be called one-shot measurements in the time domain, as in the beam management procedures for CQI reporting, or they can be filtered measurements. Filtration can simply be frequency domain filtering in the bandwidth configured for the additional RS, but it can also include time domain parameters that indicate that the
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Trad. Priority Doc: US 62 / 476,052 wireless device 10 can measure at least a number of consecutive subframes before making a selection. It is observed that this configuration takes into account the formation of a wireless device beam, that is, a certain number of repetitions that allows the wireless device 10 to select its ideal beam.
[074] In sub-section 3.3), wireless device 10 can select the best additional RS, which is equivalent to selecting the best narrow DL beam. It can be based on the best RSRP, SINR, SNR, Channel Status Information (CSI) or some other measure of signal strength or signal quality.
[075] Action 305. Wireless device 10 then performs a random access procedure or initiates a random access procedure using the RACH configuration mapped to the selected CSI-RS. Thus, wireless device 10 performs Random access based on RACH - additional RS mapping. For example, after selecting the strongest DL beam (based on additional RS measurements), wireless device 10 can initiate a random access procedure associated with the configured RACH, for example, using a RACH preamble on a time and frequency, for the selected RS. Thus, the mapping provided must be used when accessing a target and / or secondary cell, that is, during a handover execution or the establishment / addition of a secondary cell. For example, after selecting RS, which is equivalent to a narrow beam selection of DL, wireless device 10 can search for the candidate K settings previously received (for example, on the HO command) for the target RACH and select the associated or mapped RACH configuration for the selected CSI-RS. After searching, the wireless device 10 can initiate a random access procedure with the target / secondary cell using the selected RACH configuration (that is, the preamble and the time and frequency resources (and / or
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Trad. Priority Doc.: US 62 / 476,052 (possibly code resource (or resources) in which the preamble is to be transmitted), where the initiation of target cell access consists of the wireless device 10 that transmits the configured random access preamble , which is an initial action of the random access procedure in the target cell.
[076] Action 306. Upon receipt of the RACH preamble on the time and frequency resource that maps to a given DL beam, the second radio network node 13 detects which is the strongest narrow DL beam covering the wireless device 10. The second radio network node 13 can then respond to wireless device 10 with a random access response (RAR). After sending the random access preamble associated with the selected RS, wireless device 10 can expect to receive the RAR from the target cell within a time window, which can be considered as part of the RACH configuration indicated in the handover command or in the RCConnectionReconfiguration with an IE of mobilityControlInfo. The time window for RAR can be standardized as well, be it a single time window for all cases or a time window that varies depending on conditions such as numerology used for the radio interface, carrier frequency, cell type, others parts of the RACH configuration, etc. There can also be a basic standardized configuration (single or variable) for the RAR time window, which can be replaced by a configuration included in the handover command. The configuration of the physical channel associated with the RAR can also be part of the RACH configuration by CSI-RS transmitted in the HO command, allowing a cell with multiple TRPs to transmit a RAR with a different configuration depending on which TRP of the target cell the device without wire 10 should connect. The second radio network node 13 can transmit the RAR through the narrow beam and, even configuring the beam management procedure, start using the selected DL beam with gain beam formation
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Trad. Priority Doc: US 62 / 476,052 narrow for data transmission in PDSCH, start immediately after the complete handover message and / or the secondary cell configuration. Another alternative is to use a wide beam to send the RAR and just use the knowledge of the narrow beam to initiate user plane (UP) data transmissions.
[077] Action 307. The second radio network node 13 then performs user plane (DL or UL) communication with the wireless device 10 using the narrow beam associated with the RACH configuration of the random access performed by the wireless device 10.
[078] The second radio network node 13 can carry out a DL beam selection for RAR and / or UP data. Upon receipt of the RACH preamble on the time / frequency resource that maps to a given DL beam, the second radio network node 13 detects which is the strongest DL narrow beam covering the wireless device 10.
[079] It should be noted that the second radio network node 13 can transmit the RAR in action 306 through the narrow beam and, even before configuring the beam management procedure using the selected DL beam with gain beam formation narrow for data transmission in PDSCH, start immediately after the complete handover message and / or the secondary cell configuration.
[080] Modalities in this document are to enable the wireless device 10 to access a narrow DL beam (high gain) in a target cell and / or secondary cell very quickly for uninterrupted mobility and carrier aggregation and / or effective dual connectivity.
[081] The modalities in this document reveal the use of additional RSs, for example, CSI-RSs, from a target service area during a handover or secondary cell establishment to enable
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Trad. Priority Doc: US 62 / 476,052 that the target service area immediately have a narrow beam beam refinement / selection for high data rate transmission of, for example, PDSCH, without the need to increase overhead by transmission of a burst of SS in periodic scans of narrow beams.
[082] An additional aspect is that the wireless device 10 can acquire at least approximate DL synchronization in the target cell from a signal of a certain type, while carrying out DL beam selection based on other signals of another type, wherein the two types of signals may have different configurations, for example, in terms of different pre-coding parameters, for example, different beam formation and beam gain.
[083] Another aspect is that the wireless device 10 can carry out the DL beam selection based on another type of signal that the wireless device 10 uses to acquire DL synchronization in the target / secondary cell as an integrated part of the hanc / over / secondary cell addition procedure. This can be done integrated with the acquisition of DL synchronization, as a single procedure, or separated in a way that the wireless device 10 acquires DL synchronization in the target cell as a previous step, while performing only the beam selection step upon receipt of the handover command, that is, the part of the actual handover execution. See Figure 4.
[084] Figure 5 illustrates the case where the second radio network node 13 (target) transmits the SS burst over a single wide beam so that additional RSs, such as CSI-RSs, provide a means to improve reception of RACH and / or enable the target cell to perform DL beam selection as part of the handover or secondary cell establishment.
[085] Figure 6 illustrates the case where the target / secondary cell, that is, the second radio network node 13, transmits the SS burst in multiple wide beams so that the additional RSs (such as CSI-RSs of target transmitted in
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Trad. Priority Docs: US 62 / 476,052 different narrow DL beams) provide a means to further enhance RACH reception and / or enable the target cell to perform DL beam selection as part of handover execution or secondary cell establishment .
[086] Figure 7 illustrates the case in which the modalities are applied to avoid ambiguity in case a target cell is defined by multiple TRPs that transmit the multiplexed SS block in the time domain. The additional RS is used when performing a handover or establishing a secondary cell / in addition to indicating the exact TRP (radio network node) in a target cell / service area.
[087] In some modalities the information about the additional target RS, which can be a CSI-RS and the RACH resource mapping after the selection of CSI-RS can be encoded in a rach-ConfigDedicated IE that is part of the MobilityControlInfo IE, as shown in Fig. 8a. The information element (IE) of MobilityControlInfo IE can include relevant parameters of network-controlled mobility. Fig. 8b shows rach-ConfigDedicated: the dedicated random access parameters. It is observed that an information element could encode a list of RACH parameters in which each value is associated with a previously configured CSI-RS that can be formed by beam. It is observed that a ra-CsiRS mapping parameter can be an index from 0 to N where the index is associated with a RACH configuration acquired by the wireless device, in the same RRC message or in a previously received message.
[088] If absent, wireless device 10 applies contention-based random access as specified. The RACH-ConfigDedicated IE is used to specify dedicated random access parameters.
[089] Fig. 9 is a schematic signaling scheme describing
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Trad. Priority Doc: US 62 / 476,052 some modalities in this document.
[090] Action 901. The first radio network node 12 configures or transmits configuration parameters in relation to the mapping of one or more reference signals to RACH configurations. For example, the first radio network node can transmit RRCConnectionReconfiguration with mobilityControlInfo to the wireless device 10 containing the target CSI-RS mapping for the dedicated RACH configuration.
[091] Action 902. The second radio network node 13 can then transmit or perform a number (N) of transmissions from the narrow beams, for example, CSI-RS transmissions from different beams.
[092] Action 903. Wireless device 10 can then select at least one CSI-RS (for example, CSI-RS beam n *) and search for the dedicated RACH configuration according to the mapping.
[093] Action 904. Wireless device 10 can then transmit a Random Access preamble according to the selected CSIRS RACH configuration.
[094] Action 905. The second radio network node 13 can then initiate a beam transmission based on the received RA preamble. For example, based on the preamble reception, the second radio network node 13 knows the best narrow DL beam to transmit the RAR in, for example beam n *.
[095] Action 906. The second radio network node 13 transmits the RAR in beam n * to wireless device 10.
[096] Action 907. Wireless device 10 can then transmit a complete RRCConnectionReconfiguration to the second radio network node 13.
[097] Action 908. The target gNodeB (the second radio network node 13) can immediately after the handover use a high gain / narrow beam.
[098] Action 909. The second radio network node can thus perform
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Trad. Priority Doc.: US 62 / 476,052 UP transmissions on DL beam optimized n * for wireless device 10.
[099] The use of additional RSs, for example CSI-RSs, from target service areas during a handover or secondary cell establishment to enable the second radio network node 13 to have beam / selection refinement immediately of a narrow beam for high transmission rate of PDSCH data, without the need to increase the overhead by transmitting the SS burst in periodic narrow beam scans.
[0100] An additional aspect is that the wireless device 10 can acquire at least approximate DL synchronization in the target cell from a signal of a certain type, while carrying out DL beam selection based on other signals of another type, wherein the two types of signals may have different configurations, for example, in terms of different pre-coding parameters, for example, different beam formation and beam gain.
[0101] Another aspect is that wireless device 10 can perform DL beam selection based on another type of signal that wireless device 10 uses to acquire DL synchronization in the target service area as an integrated part of the procedure handover, for example, handover execution and that this can be done integrated with the acquisition of DL synchronization, as a single procedure, or separated in a way that the wireless device 10 acquires DL synchronization in the target cell as a previous action, while performing only the beam selection action after receiving the handover command, that is, as part of the actual handover execution.
[0102] Figure 10 is a block diagram that depicts, in both modalities, the wireless device 10 according to the modalities in the present document to manipulate communication for example to select a radio network node or beam for communication in a communication network
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Trad. Priority Doc.: US 62 / 476,052 wireless 1.
[0103] Wireless device 10 can be configured to be served by the first radio network node 12 that provides radio coverage in the first service area 11, for example, a narrow beam, which uses the first reference signal, for example first example CSI-RS, for the first service area 11 in a wireless communication network 1. Wireless communication network 1 further comprises the second radio network node 13 which provides coverage with one or more narrow beams associated with Additional RSs such as second CSI-RSs.
[0104] The wireless device 10 may comprise the processing circuitry 1001, for example, one or more processors, configured to perform the methods in this document.
[0105] Wireless device 10 may comprise a receiving module
1002, for example a receiver or a transceiver. The wireless device 10, the processing circuitry 1001 and / or the receiving module 1002 is configured to receive, from the first radio network node 12, a mapping between one or more RSs and one or more RACH configurations.
[0106] The wireless device 10, the processing circuitry 1001 and / or the receiving module 1002 is additionally configured to receive one or more (additional) RSs from the second radio network node 13.
[0107] Wireless device 10 can comprise a selection module
1003. Wireless device 10, processing circuitry 1001, and / or selection module 1003 is configured to select an RS, such as a second CSI-RS, from the received RS based on signal strength or quality measured on the wireless device 10. Thus, selecting a beam associated with the reference signal.
[0108] The wireless device 10 can comprise a module of
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Trad. Priority Doc.: US 62 / 476,052 transmission 1004, for example, a transmitter or transceiver. The wireless device 10, the processing circuitry 1001 and / or the transmission module 1004 is configured to initiate the random access process based on the selected RS, that is, based on the RACH configuration mapped to the selected RS . For example, to transmit an RA preamble associated with the selected RS.
[0109] The wireless device 10 additionally comprises a memory 1005. The memory comprises one or more units to be used to store data, such as RSs, conditions, mappings, RS indexes and RACH configurations, intensities or qualities, applications to perform the methods described in this document when executed, and similar.
[0110] The methods according to the modalities described in the present document for the wireless device 10 can be implemented by means of for example a computer program 1006 or a computer program product, comprising instructions, that is, portions of code software, which, when executed on at least one processor, causes the at least one processor to perform the actions described in this document, as performed by the wireless device 10. Computer program 1006 can be stored on a readable storage medium per computer 1007, for example, a disk, USB, memory or similar. Computer-readable storage medium 1007, which has the computer program stored in it, can comprise instructions that, when executed on at least one processor, cause at least one processor to perform the actions described in this document, as performed by the wireless device 10. In some embodiments, the computer-readable storage medium may be a non-transitory, computer-readable storage medium. Thus, wireless device 10 can
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Trad. Priority Doc.: US 62 / 476,052 comprise the processing circuitry and the memory, said memory comprising instructions executable by said processing circuitry by which said wireless device is operative to perform the methods herein.
[0111] Figure 11 is a block diagram that depicts, in both modalities, the first radio network node 12 according to the modalities in this document to manipulate the communication of the wireless device in a wireless communication network.
[0112] The first radio network node 12 may comprise the processing circuitry 1101, for example, one or more processors, configured to carry out the methods in this document.
[0113] The first radio network node 12 may comprise a retrieval module 1102, for example, a receiver or a transceiver. The first radio network node 12, the processing circuitry 1101 and / or the obtaining module 1102 can be configured to obtain, for example, to be configured or receive a mapping of one or more reference signals to one or more configurations of random access channel (RACH) to the target service area for example from the second radio network node 13.
[0114] The first radio network node 12 may comprise a transmission module 1103, for example a transmitter or transceiver. The first radio network node 12, the processing circuitry 1101 and / or the transmission module 1103 is configured to transmit the indication indicating the mapping of reference signals to one or more RACH configurations. The indication can be one or more indexes in a preconfigured table or be values of the RSs and RACH configurations for example the mapping as such.
[0115] The first radio network node 12 additionally comprises a
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Trad. Priority Doc: US 62 / 476,052 memory 1104. The memory comprises one or more units to be used to store data, such as a set of RSs, mappings, indexes, parameters, applications to perform the methods revealed in this document when they are executed, and the like.
[0116] The methods according to the modalities described in the present document for the first radio network node 12 are respectively implemented by means of for example a computer program 1105 or a computer program product, comprising instructions, that is, portions of software code, which, when executed on at least one processor, cause the at least one processor to perform the actions described in this document, as performed by the first radio network node 12. Computer program 1105 can be stored on a 1106 computer-readable storage medium, for example, a disk, a USB, memory or the like. Computer-readable storage medium 1106, which has the computer program stored therein, can comprise instructions that, when executed on at least one processor, cause the at least one processor to perform the actions described in this document, as performed by the first radio network node 12. In some embodiments, the computer-readable storage medium may be a non-transitory computer-readable storage medium. Thus, the second radio network node 13 may comprise the set of processing circuits and the memory, said memory comprising instructions executable by said set of processing circuits by which said radio network node is operative to carry out the methods. in this document.
[0117] Figure 12 is a block diagram that depicts, in both modalities, the second radio network node 13 according to the modalities
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Trad. Priority Doc.: US 62 / 476,052 herein to handle wireless device 10 communication over a wireless communication network 1. The second radio network node is configured to provide narrow beam radio coverage with use additional RS, the second radio network node 13 can be further configured with the mapping between RSs and RACH configurations. The wireless communication network comprises the first radio network node 12 that serves the wireless device 10.
[0118] The second radio network node 13 may comprise processing circuitry 1201, for example, one or more processors, configured to perform the methods in this document.
[0119] The second radio network node 13 may comprise a transmission module 1202, for example, a transmitter or a transceiver. The second radio network node 13, the processing circuitry 1201 and / or the transmission module 1202 is configured to transmit one or more RSs that provide radio coverage in one or more service areas. The second radio network node 13, the processing circuitry 1201, and / or the transmission module 1202 can be configured to transmit the mapping between additional RSs and RACH configurations.
[0120] The second radio network node 13 may comprise a receiving module 1203, for example, a receiver or a transceiver. The second radio network node 13, the processing circuitry 1201 and / or the receiving module 1203 is configured to receive a RACH transmission initiated by the wireless device 10. For example, the second radio network node 13 , the processing circuitry 1201 and / or the receiving module 1203 can be configured to receive a RACH preamble over time and frequency from the wireless device 10.
[0121] The second radio network node 13 may comprise a module
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Trad. Priority Doc: US 62 / 476,052 of determination 1204. The second radio network node 13, the processing circuitry 1201, and / or the determination module 1204 is configured to determine RS based on the received RACH transmission of the wireless device 10. The second radio network node 13, the processing circuitry 1201, and / or the determination module 1204 can for example be configured to detect a reference signal, outside of one or more signal signals. transmitted reference, which is selected by the wireless device where the second radio network node detects the random access procedure initiated from the wireless device associated with random access channel configurations that are associated with the CSI-RS. The second radio network node 13, the processing circuitry 1201 and / or the transmission module 1202 can then be configured to transmit data transmissions to the wireless device 10 using the beam associated with the determined RS.
[0122] The second radio network node 13 additionally comprises a 1205 memory. The memory comprises one or more units to be used to store data, such as RSs, mapping RSs and RACH configurations, parameters, applications to carry out the methods revealed in this document when executed and similar.
[0123] The methods according to the modalities described in this document for the second radio network node 13 can be implemented respectively by means of for example a computer program 1206 or a computer program product, comprising instructions, i.e. , portions of software code, which when executed on at least one processor, cause the at least one processor to perform the actions described in this document, as performed by the second radio network node 13. The computer program 1206 can be stored in a medium
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Trad. Priority Doc.: US 62 / 476,052 computer-readable storage 1207, for example, a disk, a USB, memory or similar. Computer-readable storage medium 1207, which has the computer program stored therein, can comprise instructions that, when executed on at least one processor, cause at least one processor to perform the actions described in this document, as performed by the second radio network node 13. In some embodiments, the computer-readable storage medium may be a non-transitory computer-readable storage medium. Thus, the second radio network node 13 may comprise the processing circuitry and the memory, said memory comprising instructions executable by said processing circuitry by which said radio network node is operational to carry out the methods. in this document.
FIGURE 13
Petition 870190120408, of 11/19/2019, p. 140/158
Trad. Priority Doc: US 62 / 476,052 [0124] Although the solutions described above can be implemented in any appropriate type of system using any suitable component, particular modalities of the solutions described can be implemented by a wireless network as the example communication network wireless example shown in Figure 13. In the example mode in Figure 13, the wireless communication network provides communication and other types of services for one or more wireless devices. In the illustrated embodiment, the wireless communication network includes one or more instances of network nodes that facilitate access to wireless devices and / or use of services provided by the wireless communication network. The wireless communication network may further include any additional elements suitable for supporting communications between wireless devices or between a wireless device and another communication device, such as a landline.
[0125] Network 220 may comprise one or more IP networks, public switched telephone networks (PSTNs), packet data network, optical networks, wide area networks (WANs), local area networks (LANs), networks wireless locations (WLANs), wired networks, wireless networks, metropolitan area networks, and other networks to allow communication between devices.
[0126] The wireless communication network can represent any type of communication, telecommunications, data, cellular, and / or radio network or other type of system. In particular modes, the wireless communication network can be configured to operate according to specific standards or other types of predefined rules or procedures. Thus, particular modalities of the wireless communication network can implement communication standards, such as the Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and / or other 2G standards , 3G, 4G or 5G appropriate; local area network standards
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Trad. Priority Doc.: US 62 / 476,052 wireless (WLAN), as IEEE 802.11 standards; and / or any other appropriate wireless communication standard, such as Microwave Access for Worldwide Interoperability (WiMax), Bluetooth, and / or ZigBee standards.
[0127] Figure 13 illustrates a wireless network comprising a more detailed view of network node 200 and wireless device (WD) 210, according to a particular embodiment. For simplicity, Figure 13 only shows network 220, network nodes 200 and 200 ^, and WD 210. Network node 200 comprises processor 202, storage 203, interface 201, and antenna 201a. Likewise, the WD 210 comprises processor 212, storage 213, interface 211 and antenna 211a. These components can work together to provide new functionality for the network node and / or wireless device, such as providing wireless connections over a wireless network. In different modalities, the wireless network can comprise any number of wired and wireless networks, network nodes, base stations, controllers, wireless devices, relay stations, and / or any other components that may provide or participate in data communication and / or signals either through wired or wireless connections.
[0128] As used in this document, a network node refers to equipment capable, configured, arranged and / or operable to communicate directly or indirectly with a wireless device and / or with other equipment on the wireless communication network which enables and / or provides wireless access to the wireless device. Examples of network nodes include, but are not limited to, access points (APs), in particular radio access points. A network node can represent base stations (BSs), such as radio base stations. Particular examples of radio base stations include Node Bs, and evolved Node Bs (eNBs). Base stations can be categorized based on the amount of coverage they provide (or, stated differently, their transmission power level) and can also refer to stations
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Trad. Priority Doc: US 62 / 476,052 femto base, pico base stations, micro base stations, or macro base stations. The network node also includes one or more (or all) parts of a distributed radio base station such as centralized digital units and / or remote radio units (RRUs), sometimes referring to Remote Radio Heads (RRHs). Such remote radio units may or may not be integrated with an antenna like a radio integrated with the antenna. The parts of a distributed radio base can be referred to as nodes as a distributed antenna system (DAS).
[0129] As a particular non-limiting example, a base station can be a relay node or a relay controller donor node that controls a relay [0130] Still further examples of network nodes include multi-radio radio equipment standards, such as MRS-BSs, network controllers such as network controllers (RNCs) or base station controllers (BSCs), base transceiver stations (BTS), transmission points, transmission nodes, multi-cell Coordination Entities / multicast (MCEs), core network nodes, (for example, MSCs, MMEs), O&M nodes, OSS nodes, SON nodes, positioning nodes (eg, E-SMLCs), and / or MDTs. More generally, however, network nodes can represent any suitable device (or group of devices) capable, configured, arranged, and / or operable to enable and / or provide wireless device access to the wireless communication network. or to provide some service for a wireless device that has accessed the wireless communication network.
[0131] As used herein, the term radio node is used in general to refer to both wireless devices and network nodes, as described respectively below.
[0132] In Figure 13, Network Node 200 comprises processor 202, the
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Trad. Priority Doc.: US 62 / 476,052 storage 203, interface 201 and antenna 201a. These components are depicted as single boxes located within a larger single box. However in practice, a network node may comprise multiple different physical components that make up a single illustrated component (for example, interface 201 may comprise terminals for wire coupling for a wired connection and a radio transceiver for a wireless connection) . As another example, network node 200 may be a virtual network node in which multiple different physically separate components interact to provide the functionality of network node 200 (for example, processor 202 may comprise three separate processors located in three compartments separate, where each processor is responsible for a different function for a particular case of network node 200). Similarly, network node 200 can be composed of multiple physically separate components (for example, a Node B component and an RNC component, a BTS component and a BSC component, etc.), which can each have their own respective processor, storage and interface components. In certain scenarios in which network node 200 comprises multiple separate components (e.g., BTS and BSC components), one or more separate components can be shared between multiple network nodes. For example, a single RNC can control multiple Nodes. In such a scenario, each unique NodeB and pair of BSCs can be a separate network node. In some embodiments, network node 200 can be configured to support multiple radio access technologies (RATs). In such embodiments, some components can be duplicated (for example, separate storage 203 for different RATs) and some components can be reused (for example, the same antenna 201 a can be shared by RATs).
[0133] Processor 202 may be a combination of one or more among
Petition 870190120408, of 11/19/2019, p. 144/158
Trad. Priority Doc.: US 62 / 476,052 microprocessor, controller, microcontroller, central processing unit, digital signal processor, application specific integrated circuit, field programmable port arrangement, or any other appropriate computing device, resource or combination of hardware, software and / or operable coded logic element suitable for providing alone or in conjunction with other network node components 200, such as storage 203, and network node functionality 200. For example, processor 202 can execute instructions stored in storage 203. Such functionality may include the provision of various wireless features discussed in this document for a wireless device, such as WD 210, which includes any of the features or benefits disclosed in this document.
[0134] Storage 203 may comprise any form of volatile or non-volatile computer-readable memory that includes, without limitation, persistent storage, solid state memory, remotely mounted memory, magnetic media, optical media, random access memory (RAM) , read-only memory (ROM), removable media, or any other suitable remote memory location or component. Storage 203 can store any appropriate instructions, data or information, including software and encoded logic element, used by network node 200. Storage 203 can be used to store any calculations made by processor 202 and / or any data received through the interface 201.
[0135] Network node 200 also comprises interface 201 which can be used for wired or wireless signaling and / or data communication between network node 200, network 220 and / or WD 210. For example, interface 201 can perform any formatting, encoding, or translation that may be required to allow network node 200 to send and receive data from network 220 over a wired connection. Interface 201 may also include a transmitter and / or
Petition 870190120408, of 11/19/2019, p. 145/158
Trad. Priority Doc.: US 62 / 476,052 radio receiver that can be attached to antenna 201a or part of antenna 201a. The radio can receive digital data that must be sent to other network nodes or WDs over a wireless connection. The radio can convert digital data into a radio signal that has the appropriate channel and bandwidth parameters. The radio signal can then be transmitted via antenna 201a to the appropriate recipient (for example, WD 210).
[0136] Antenna 201a can be any type of antenna capable of transmitting and receiving data and / or signals wirelessly. In some embodiments, the antenna 201a may comprise one or more omnidirectional, sector or panel antennas operable to transmit / receive radio signals between, for example, 2 GHz and 66 GHz. An omnidirectional antenna can be used to transmit / receive radio signals in any direction, a sector antenna can be used to transmit / receive radio signals from devices within a particular area, and a panel antenna can be a line of sight antenna used to transmit / receive radio signals in a relatively straight line.
[0137] As used herein, the wireless device (WD) refers to a device capable, configured, arranged and operable to communicate wirelessly with network nodes and / or another wireless device. Wireless communication may involve transmitting and / or receiving wireless signals using electromagnetic signals, radio waves, infrared signals and / or other types of signals suitable for transporting information through the air. In particular modes, wireless devices can be configured to transmit and / or receive information without direct human interaction. For example, a wireless device can be designed to transmit information to a network on a predetermined schedule, when triggered by an internal or external event, or in response to
Petition 870190120408, of 11/19/2019, p. 146/158
Trad. Priority Doc: US 62 / 476,052 network requests. In general, a wireless device can represent any capable device, configured for, willing to, and / or operable for wireless communication, for example, radio communication devices. Examples of wireless devices include, but are not limited to, user equipment (UE), such as smartphones. Additional examples include wireless cameras, wireless enabled tablet computers, laptop embedded equipment (LEE), laptop mounted equipment (LME), USB dongles, and / or wireless client premises equipment (CPE).
[0138] As a specific example, a wireless device may represent a UE configured for communication in accordance with one or more standards promulgated by the 3rd Generation Partnership Project (3GPP), such as 3GPP GSM, UMTS, LTE, and / or 5G standards. As used herein, user equipment or UE may not necessarily have a user in the sense of a human user who owns and / or operates the relevant device. Instead, a UE may represent a device that is intended for sale to, or operated by, a human user, but this may not initially be associated with a specific human user.
[0139] The wireless device can support device-to-device (D2D) communication, for example, by implementing a 3GPP standard for side link communication, and can be referred to as a D2D communication device in this case.
[0140] Still as another specific example, in an Internet of Things (loT) scenario, a wireless device can represent a machine or other device that performs monitoring and / or measurements, and transmits the results of such monitoring and / or measurements to another wireless device and / or a network node. The wireless device can be a machine-to-machine (M2M) device in that case, which can in a 3GPP context be referred to as
Petition 870190120408, of 11/19/2019, p. 147/158
Trad. Priority Doc.: US 62 / 476,052 a machine type communication device (MTC). As a particular example, the wireless device may be a UE that implements the 3GPP (NB-loT) narrowband internet of things standard. Particular examples of such machines or devices are sensors, measuring devices such as power meters, industrial machinery, or household or personal applications, for example, refrigerators, televisions, personal wearable elements such as watches, etc. In other scenarios, a wireless device may represent a vehicle or other equipment that is capable of monitoring and / or reporting in its own situation or other functions associated with its operation.
[0141] A wireless device as described above can represent the end point of a wireless connection, in which case the device can be referred to as a wireless terminal. In addition, a wireless device as described above can be mobile, in which case it can also be called a mobile device or a mobile terminal.
[0142] As depicted in Figure 13, the WD 210 can be any type of mobile endpoint, mobile station, mobile phone, local wireless mesh phone, smartphone, user equipment, desktop computer, PDA, cell phone, tablet, laptop, VoIP phone or handset, which is capable of wirelessly sending and receiving data and / or signals to and from a network node, such as network node 200 and / or other WDs. The WD 210 comprises processor 212., storage 2213, interface 211, and antenna 211a. Like network node 200, the components of WD 210 are portrayed as single boxes located within a single larger box, however in practice a wireless device may comprise multiple different physical components that make up a single illustrated component (for example, storage 213 can comprise multiple distinct microchips, each microchip representing a portion of the total storage capacity).
Petition 870190120408, of 11/19/2019, p. 148/158
Trad. Priority Doc: US 62 / 476,052 [0143] Processor 212 can be a combination of one or more of a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application specific integrated circuit, port arrangement field-programmable, or any appropriate computing device, resource, or combination of hardware, software, and / or operable coded logic element to provide, either alone or in conjunction with other suitable WD 210 components, such as storage 213, and WD 210 functionality Such functionality may include the provision of various wireless features discussed in this document, including any of the features and benefits disclosed in this document.
[0144] Storage 213 can be any form of volatile or non-volatile memory that includes, without limitation, persistent storage, solid state memory, remotely mounted memory, magnetic media, optical media, random access memory (RAM), memory only (ROM), removable media, or any other remote memory location or component. Storage 213 can store any appropriate data, instructions, or information, including software and encoded logic, used by the WD 210. Storage 213 can be used to store any calculations made by processor 212 and / or any data received through interface 211 .
[0145] Interface 211 can be used for wireless signaling and / or data communication between WD 210 and network node 200. For example, interface 211 can perform any formatting, encoding, or translation that may be required to allow the WD 210 to send and receive data from network node 200 over a wireless connection. The interface 211 can also include a radio transmitter and / or receiver that can be coupled to or a part of the antenna 211a. The radio can receive digital data that is to be sent to the node
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Trad. Priority Doc.: US 62 / 476,052 network 201 via wireless connection. The radio can convert digital data into a radio signal that has the appropriate channel and bandwidth parameters. Then, the radio signal can be transmitted through antenna 211a to network node 200.
[0146] Antenna 211a can be any type of antenna capable of transmitting and receiving data and / or signals wirelessly. In some embodiments, antenna 211a may comprise one or more omnidirectional, sector or panel antennas operable to transmit / receive radio signals between 2 GHz and 66 GHz. For simplicity, antenna 211 a can be considered a part of interface 211 as a wireless signal is being used.
FIGURE 14
[0147] As shown in Figure 14, user equipment 300 is an exemplary wireless device. The UE 300 includes an antenna 305, a radio front-end circuitry 310, a processing circuitry 315, and a computer-readable storage medium 330.
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Trad. Priority Doc: US 62 / 476,052
The antenna 305 can include one or more antennas or antenna arrays, and is configured to send and / or receive wireless signals, and is connected to the radio front-end circuitry. In certain alternative embodiments, wireless device 300 may not include antenna 305, antenna 305 may instead be separated from wireless device 300 and be connectable to wireless device 300 via an interface or port.
[0148] The radio front-end circuit set 310 can comprise several filters and amplifiers, is connected to antenna 305 and to the processing circuit set 315, and is configured to condition signals communicated between antenna 305 and the circuit set processing device 315. In certain alternative embodiments, wireless device 300 may not include radio front-end circuitry 310, and processing circuitry 315 may instead connect to antenna 305 without the circuitry radio front end 310.
[0149] The 315 processing circuitry may include one or more of the radio frequency (RF) transceiver circuitry, baseband processing circuitry, and application processing circuitry. In some embodiments, the RF transceiver circuitry, baseband processing circuitry, and application processing circuitry can be separated into chipsets. In alternative embodiments, some or all of the baseband processing circuitry and application processing circuitry can be combined in one chipset, and the RF transceiver circuitry can be in a separate chipset. Still in the alternative modalities, part or all of the RF transceiver circuitry and the baseband processing circuitry may be on the same chipset, and the application processing circuitry
Petition 870190120408, of 11/19/2019, p. 151/158
Trad. Priority Doc: US 62 / 476,052 can be on a separate chipset. In yet other alternative embodiments, part or all of the RF transceiver circuitry, baseband processing circuitry, and application processing circuitry can be combined on the same chipset. The processing circuitry 315 may include, for example, one or more central processing units (CPUs), one or more microprocessors, one or more application-specific integrated circuits (ASICs), and / or one or more port arrangements field programmable (FPGAs).
[0150] In particular modalities, some or all of the functionality described in this document as being provided by a wireless device can be provided by the 315 processing circuitry that executes instructions stored in a computer-readable storage medium 330. In the modalities Alternatively, some or all of the functionality may be provided by the 315 processing circuitry without executing instructions stored on a computer-readable storage medium, as in a connected manner. In any of the particular modalities, the possibility of executing instructions stored in a computer-readable storage medium or not, the set of processing circuits can be said to be configured to carry out the described functionality. The benefits provided by such functionality are not limited to the 315 processing circuitry alone or other components of the UE 300, but are enjoyed by the device as a whole, and / or by end users and the wireless network in general.
[0151] Antenna 305, radio front-end circuit set 310, and / or processing circuit set 315 can be configured to perform any receiving operations described in this document as
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Trad. Priority Docs: US 62 / 476,052 being performed by a wireless device. Any information, data and / or signals can be received from a network node and / or another wireless device.
[0152] The processing circuitry 315 can be configured to perform any determination operations described in this document as being performed by a wireless device. Determination as performed by 315 processing circuitry may include processing information obtained by 315 processing circuitry by, for example, converting information obtained into other information, comparing information obtained or information converted into information stored on the wireless device , and / or perform one or more operations based on the information obtained or information converted, and as a result of said processing that constitutes a determination.
[0153] The antenna 305, the radio front-end circuit set 310, and / or the processing circuit set 315 can be configured to perform any transmission operations described in this document as being performed by a wireless device. Any information, data and / or signals can be transmitted to a network node and / or another wireless device.
[0154] Computer-readable storage medium 330 is generally operable to store instructions, such as a computer program, software, an application including one or more among logic, rules, code, tables, etc., and / or other capable instructions to be performed by a processor. Examples of computer-readable storage media 330 include computer memory (for example, Random Access Memory (RAM) or Read-Only Memory (ROM)), mass storage media (for example, a hard drive), removable storage (for example, a Compact Disc (CD) or Digital Video Disc (DVD)), and / or
Petition 870190120408, of 11/19/2019, p. 153/158
Trad. Priority Doc: US 62 / 476,052 any other non-transitory volatile or non-volatile computer readable and / or computer executable memory devices that store information, data, and / or instructions that can be used by the 315 processing circuitry In some embodiments, the processing circuitry 315 and the computer-readable storage medium 330 can be considered integrated.
[0155] Alternative modalities of the UE 300 may include additional components in addition to those shown in Figure 14 that may be responsible for providing certain aspects of the functionality of the UE, including any of the features described in this document and / or the features necessary to support the solution described above. Just as an example, the UE 300 can include interfaces, devices and input circuits, and interfaces, devices and output circuits. Interfaces, devices, and input circuits are configured to allow information to be entered into the UE 300, and are connected to the 315 processing circuitry to process the input information. For example, the interfaces, devices and input circuits can include a microphone, a proximity element or other sensor, keys / buttons, touchscreen, one or more cameras, a USB port, or other input elements. The interfaces, devices, and output circuits are configured to allow information to be output from the UE 300, and are connected to the processing circuitry 315 to allow information from the UE 300. For example, interfaces, devices, or output circuits can include a speaker, a display, a set of vibration circuits, a USB port, a headset interface, or other output elements. Using one or more interfaces, devices, and input and output circuits, the UE 300 can communicate with end users and / or the wireless device, and allows them to benefit from the functionality
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Trad. Priority Doc.: US 62 / 476,052 described in this document.
[0156] As another example, the UE 300 can include the power source 335. The power source 335 can comprise a set of power management circuits. The power source 335 can receive power from a power source, which can be comprised of, or be external to, the power source 335. For example, the UE 300 can comprise a power source in the form of a power pack. battery that is connected, or integrated, to the 335 power source. Other types of power source, with photovoltaic devices, can be used. As an additional example, the UE 300 can be connected to an external power source (such as an electricity outlet) via a circuitry or input interface, with an electrical cable, through which the external power source supplies power to the power source 335. Power source 335 can be connected to the radio front-end circuit pack, 315 processing circuit pack, and / or computer-readable storage medium 330 and can be configured to supply the UE 300, including 315 processing circuitry, with power to perform the functionality described in this document.
[0157] The UE 300 may also include multiple sets of 315 processing circuit packs, computer-readable storage media 330, radio circuit set 310, and / or 305 antennas for different wireless technologies integrated into the wireless device 300, such as GSM, WCDMA, LTE, NR, Wi-Fi or Bluetooth wireless technologies. These wireless technologies can be integrated into the same chipset or different chipset and other components contained in the wireless device 300.
[0158] In some embodiments a more general term radio network node is used and it can correspond to any type of radio network node and / or another any network node, which communicates with a device without
Petition 870190120408, of 11/19/2019, p. 155/158
Trad. Priority Doc: US 62 / 476,052 wire and / or with another network node. Examples of network nodes are NodeB, master eNB, secondary eNB, a network node belonging to the master cell group (MCG) or Secondary Cell Group (SCG), base station (BS), standard multi-radio radio node (MSR) such as MSR BS, eNodeB, network controller, radio network controller (RNC), base station controller (BSC, relay, donor node control relay, base transceiver station (BTS), access (AP), transmission points, transmission nodes, Remote Radio Unit (RRU), Remote Radio Head (RRH), nodes in distributed antenna system (DAS), core network node for example Mobility Switching Center ( MSC), Mobility Management Entity (MME), etc., Operation & Maintenance (O&M), Operation Support System (OSS), Self-organization Network (SON), positioning node for example Mobile Service Location Center Evolved (E-SMLC), Minimization Unit Test (MDT), etc.
[0159] In some embodiments the term non-limiting wireless device or user equipment (UE) is used and refers to any type of wireless device that communicates with a network node and / or with another wireless device in a cellular or mobile communication system. Examples of wireless devices are target device, device-to-device UE (D2D), proximity capable wireless device (UE also known as ProSe), machine-like wireless device, or wireless device capable of machine-to-machine communication (M2M ), PDA, PAD, Tablet, mobile terminals, smartphones, laptop-embedded equipment (LEE), laptop-mounted equipment (LME), USB dongles, etc.
[0160] The modalities are described for 5G. However, the modalities are applicable for any RAT or multiple RAT systems, where the wireless device receives and / or transmits signals (for example, data), for example.
Petition 870190120408, of 11/19/2019, p. 156/158
Trad. Priority Doc: US 62 / 476,052 example, LTE, Frequency Duplexing Division / LTE Time Duplexing Division (DdriDD), WCDMA / HSPA, GSM / GERAN, Wi-Fi, WLAN, CDMA2000, etc.
[0161] Antenna node: An antenna node is a unit capable of producing one or more beams that cover a specific service area or direction. An antenna node can be a base station, or a part of a base station.
[0162] As will be readily understood by those elements who are familiar with the design of communications, these means or function modules can be implemented using digital logic and / or one or more microcontrollers, microprocessors or other digital hardware. In some modalities, several or all functions can be implemented together, as in a single application-specific integrated circuit (ASIC), or in two or more separate devices with appropriate hardware and / or software interfaces between them. Several functions can be implemented on a processor shared with other functional components of a wireless device or network node, for example.
[0163] Alternatively, several functional elements of the processing media discussed above can be provided through the use of dedicated hardware, while other functional elements are provided with hardware to run software, in association with appropriate software or firmware. Thus, the term processor or controller as used in this document does not refer exclusively to hardware capable of running software and may implicitly include, without limitation, digital signal processor (DSP) hardware, read-only memory (ROM) for data storage. software, random access memory for storing software and / or program or application data, and non-volatile memory. Other hardware, conventional and / or custom, can be included. Designers
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Trad. Priority Doc: US 62 / 476,052 communication devices will appreciate the cost, performance and maintenance tradeoffs inherent in these design choices.
[0164] The modifications and other modalities of the revealed modalities will appear in the mind of an element versed in the technique that has the benefit of the teachings presented in the aforementioned descriptions and in the associated drawings. Therefore, it should be understood that the modality (s) should not be limited to the specific modalities disclosed and that modifications and other modalities are intended to be included in the scope of this invention. Although specific terms can be used in this document, they are used only in a generic and descriptive sense and not for limiting purposes.

权利要求:
Claims (71)
[1]
1. A method performed by a wireless device (10) to manipulate wireless device communication over a wireless communication network, wherein the wireless communication network comprises a first radio network node (12) and a second radio network node (13), whose first radio network node (12) serves the wireless device (10), the method comprising:
receiving (802) an indication indicating a mapping between one or more channel status information reference signals, CSI-RSs, and one or more random access channel configurations, RACH;
receiving (803) one or more CSI-RSs from the second radio network node (13);
select (804) a CSI-RS from one or more CSI-RSs received; and initiate (805) a random access procedure towards the second radio network node (13) using at least part of the RACH configuration mapped to the selected CSI-RS.
[2]
A method according to claim 1, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[3]
A method according to any one of claims 1 to 2, wherein no more than one RACH configuration is mapped to a CSI-RS.
[4]
A method according to any one of claims 1 to 3, further comprising acquiring (801) downlink synchronization upon receipt of a Primary Sync Signal and a Secondary Sync Signal transmitted by the second radio network node as part of a Sync Signal block.
[5]
A method according to any one of claims 1 to 4, wherein a RACH configuration comprises time and frequency resources
Petition 870190095211, of 09/23/2019, p. 224/280
2/14 to be used for transmitting a RACH preamble or a specific preamble.
[6]
A method according to any one of claims 1 to 5, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or a physical channel configuration associated with the RAR.
[7]
A method according to any one of claims 1 to 6, wherein selecting (804) the CSI-RS from one or more CSI-RSs received is based on the measurements on the CSI-RSs received.
[8]
8. A method according to claim 7, in which the CSI-RS associated with the best quality or intensity is selected.
[9]
A method according to any one of claims 1 to 8, wherein the indication is received in a radio resource control message, RRC.
[10]
10. A method performed by a second radio network node (13) to manipulate communication from a wireless device (10) on a wireless communication network, wherein the wireless communication network comprises the second network node radio (13) and a first radio network node (12), where the first radio network node serves the wireless device (10) and the second radio network node is configured with a mapping between one or more channel state information reference signals, CSI-RS, and one or more random access channel configurations, RACH, the method comprising:
transmitting (811) one or more CSI-RSs associated with a respective beam;
detecting (812) a random access procedure initiated from the wireless device (10) using at least part of a RACH configuration, whose RACH configuration is mapped to a CSI-RS among one or more transmitted CSI-RSs; and
Petition 870190095211, of 09/23/2019, p. 225/280
3/14 use (813) the beam associated with the CSI-RS to perform data transmissions to or from the wireless device.
[11]
A method according to claim 10, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[12]
A method according to any one of claims 10 to
11, where no more than one RACH configuration is mapped to a CSIRS.
[13]
A method according to any one of claims 10 to
12, in which in addition to one or more CSI-RSs associated with a respective beam transmitted, the second radio network node additionally transmits a Primary Sync Signal and a Secondary Sync Signal as part of a Sync Signal block.
[14]
A method according to any one of claims 10 to
13, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[15]
A method according to any one of claims 10 to
14, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, and / or a configuration of a physical channel associated with the RAR.
[16]
A method according to any one of claims 10 to
15, in which one or more CSI-RSs are activated in the handover.
[17]
17. A method performed by a first radio network node (12) to manipulate the communication of a wireless device (10) on a wireless communication network, in which the first radio network node (12) serves the wireless device (10) and a wireless communication network comprises
Petition 870190095211, of 09/23/2019, p. 226/280
4/14 additionally a second radio network node (13), the method comprising transmitting (822) to the wireless device (10), an indication indicating a mapping between one or more reference signals of channel status information, CSI-RS, and one or more random access channel configurations, RACH, from the second radio network node (13).
[18]
A method according to claim 17, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[19]
19. A method according to any one of claims 17 to
18, where no more than one RACH configuration is mapped to a CSIRS.
[20]
20. A method according to any one of claims 17 to
19, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[21]
21. A method according to any one of claims 17 to
20, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or a configuration of a physical channel associated with the RAR.
[22]
22. A method according to any of claims 17 to
21, in which the indication is transmitted in a radio resource control message, RRC.
[23]
23. A method according to any one of claims 17 to
22, further comprising obtaining (821) the mapping between one or more CSI-RSs and one or more RACH configurations.
[24]
24. A wireless device (10) for handling communication from the
Petition 870190095211, of 09/23/2019, p. 227/280
5/14 wireless device (10) on a wireless communication network (1) comprising a first radio network node (12) configured to serve the wireless device (10) and a second radio network node (13 ), where the wireless device (10) is configured to:
receiving an indication indicating a mapping between one or more channel state information reference signals, CSI-RSs, and one or more random access channel configurations, RACH;
receiving one or more CSI-RSs from the second radio network node (13);
select a CSI-RS from one or more CSI-RSs received; and initiate a random access procedure towards the second radio network node (13) using at least part of the RACH configuration mapped to the selected CSI-RS.
[25]
A wireless device (10) according to claim 24, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[26]
26. A wireless device (10) according to any one of claims 24 to 25, wherein no more than one RACH configuration is mapped to a CSI-RS.
[27]
27. A wireless device (10) according to any one of claims 24 to 26, wherein the wireless device is additionally configured to acquire downlink synchronization upon receipt of a transmitted Primary Sync Signal and Secondary Sync Signal by the second radio network node as part of a Sync Signal block.
[28]
28. A wireless device (10) according to any one of claims 24 to 27, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a preamble to
Petition 870190095211, of 09/23/2019, p. 228/280
6/14
RACH or a specific preamble.
[29]
A wireless device (10) according to any one of claims 24 to 28, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or an associated physical channel configuration. to RAR.
[30]
30. A wireless device (10) according to any one of claims 24 to 29, wherein the wireless device (10) is configured to select the CSI-RS from one or more CSI-RSs received based on measurements in CSI-RSs received.
[31]
A wireless device (10) according to claim 30, wherein the wireless device (10) is configured to select the CSI-RS associated with the best quality or intensity.
[32]
32. A wireless device according to any one of claims 24 to 31, wherein the wireless device (10) is configured to receive the indication in a radio resource control message, RRC.
[33]
33. A second radio network node (13) for handling communication from a wireless device (10) over a wireless communication network, where the wireless communication network comprises the second radio network node (13 ) and a first radio network node (12), where the first radio network node serves the wireless device (10) and the second radio network node has a mapping between one or more information reference signals channel status, CSI-RS, and one or more random access channel configurations, RACH, where the second radio network node is configured to:
transmit one or more CSI-RSs associated with a respective beam;
detect a random access procedure initiated from the wireless device (10) using at least part of a RACH configuration, whose RACH configuration is mapped to a CSI-RS among one or more
Petition 870190095211, of 09/23/2019, p. 229/280
7/14
CSI-RSs transmitted; and use the bundle associated with the CSI-RS to perform data transmissions to or from the wireless device.
[34]
34. A second radio network node (13) according to claim 33, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[35]
35. A second radio network node (13) according to any one of claims 33 to 34, wherein no more than one RACH configuration is mapped to a CSI-RS.
[36]
36. A second radio network node (13) according to any one of claims 33 to 35, wherein in addition to one or more CSI-RSs associated with a respective transmitted beam, the second radio network node is configured additionally to transmit a Primary Sync Signal and a Secondary Sync Signal as part of a Sync Signal block.
[37]
37. A second radio network node (13) according to any one of claims 33 to 36, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[38]
38. A second radio network node (13) according to any one of claims 33 to 37, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or a configuration of a physical channel associated with RAR.
[39]
39. A second radio network node (13) according to any one of claims 33 to 38, wherein the second radio network node is configured to activate one or more CSI-RSs in the handover.
[40]
40. A first radio network node (12) to handle communication from a wireless device (10) on a wireless communication network
Petition 870190095211, of 09/23/2019, p. 230/280
8/14 wire comprising the first radio network node (12) and a second radio network node (13), wherein the first radio network node (12) is operative to serve the wireless device (10) , and wherein the first radio network node (12) is configured to transmit to the wireless device (10) an indication that indicates a mapping between one or more channel state information reference signals, CSI-RSs, and one or more random access channel configurations, RACH, from the second radio network node (13).
[41]
41. A first radio network node (12) according to claim 40, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[42]
42. A first radio network node (12) according to any one of claims 40 to 41, wherein no more than one RACH configuration is mapped to a CSI-RS.
[43]
43. A first radio network node (12) according to any one of claims 40 to 42, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[44]
44. A first radio network node (12) according to any one of claims 40 to 43, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or a configuration of a physical channel associated with RAR.
[45]
45. A first radio network node (12) according to any one of claims 40 to 44, wherein the first radio network node is configured to transmit an indication in a radio resource control message, RRC.
[46]
46. A first radio network node (12) according to any one
Petition 870190095211, of 09/23/2019, p. 231/280
9/14 of claims 40 to 45, wherein the first radio network node is further configured to obtain the mapping between one or more CSI-RSs and one or more RACH configurations.
[47]
47. A wireless device (10) for handling communication from the wireless device (10) over a wireless communication network (1) comprising a first radio network node (12) configured to serve the wireless device (10 ) and a second radio network node (13), wherein the wireless device (10) comprises a set of processing circuits and a memory, said memory comprising instructions executable by said set of processing circuits by which said wireless device is operative for:
receiving an indication indicating a mapping between one or more channel state information reference signals, CSI-RSs, and one or more random access channel configurations, RACH;
receiving one or more CSI-RSs from the second radio network node (13);
select a CSI-RS from one or more CSI-RSs received; and initiate a random access procedure towards the second radio network node (13) using at least part of the RACH configuration mapped to the selected CSI-RS.
[48]
48. A wireless device (10) according to claim 47, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[49]
49. A wireless device (10) according to any one of claims 47 to 48, wherein no more than one RACH configuration is mapped to a CSI-RS.
[50]
50. A wireless device (10) according to any one of claims 47 to 49, whereby said wireless device is additionally
Petition 870190095211, of 09/23/2019, p. 232/280
10/14 operative to acquire downlink synchronization by receiving a Primary Sync Signal and a Secondary Sync Signal transmitted by the second radio network node as part of a Sync Signal block.
[51]
51. A wireless device (10) according to any one of claims 47 to 50, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[52]
52. A wireless device (10) according to any of claims 47 to 51, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or an associated physical channel configuration. to RAR.
[53]
53. A wireless device (10) according to any one of claims 47 to 52, whereby said wireless device is additionally operative to select the CSI-RS from one or more CSI-RSs received based on measurements in the CSI -RSs received.
[54]
54. A wireless device (10) according to claim 53, whereby said wireless device is operative to select the CSI-RS associated with the best quality or intensity.
[55]
55. A wireless device according to any of claims 47 to 54, wherein the indication is received in a radio resource control message, RRC.
[56]
56. A second radio network node (13) for handling communication from a wireless device (10) over a wireless communication network, where the wireless communication network comprises the second radio network node (13 ) and a first radio network node (12), where the first radio network node serves the wireless device (10) and the second radio network node
Petition 870190095211, of 09/23/2019, p. 233/280
11/14 has a mapping between one or more channel state information reference signals, CSI-RSs, and one or more random access channel configurations, RACH, and in which the second radio network node comprises a set of processing circuits and a memory, said memory comprising instructions executable by said set of processing circuits by which said second radio network node is operative for:
transmit one or more CSI-RSs associated with a respective beam;
detecting a random access procedure initiated from the wireless device (10) using at least part of a RACH configuration, whose RACH configuration is mapped to a CSI-RS among one or more CSI-RSs transmitted; and use the beam associated with the CSI-RS to perform data transmissions to or from the wireless device.
[57]
57. A second radio network node (13) according to claim 56, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[58]
58. A second radio network node (13) according to any one of claims 56 to 57, wherein no more than one RACH configuration is mapped to a CSI-RS.
[59]
59. A second radio network node (13) according to any one of claims 56 to 58, wherein, in addition to the one or more CSI-RSs associated with a respective transmitted beam, the second radio network node is additionally operative to transmit a Primary Sync Signal and a Secondary Sync Signal as part of a Sync Signal block.
[60]
60. A second radio network node (13) according to any one
Petition 870190095211, of 09/23/2019, p. 234/280
12/14 of claims 56 to 59, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[61]
61. A second radio network node (13) according to any one of claims 56 to 60, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or a configuration of a physical channel associated with RAR.
[62]
62. A second radio network node (13) according to any one of claims 56 to 61, wherein the one or more CSI-RSs are activated on the handover.
[63]
63. A first radio network node (12) for handling communication from a wireless device (10) over a wireless communication network, where the first radio network node (12) is operative to serve the device wireless (10) and the wireless communication network further comprises a second radio network node (13), and wherein the first radio network node (12) comprises a set of processing circuits and a memory, the said memory comprising instructions executable by said set of processing circuits by which said first radio network node is operative to transmit to the wireless device (10), an indication indicating a mapping between one or more reference information information signals. channel state, CSI-RSs, and one or more random access channel configurations, RACH, from the second radio network node (13).
[64]
64. A first radio network node (12) according to claim 63, wherein the mapping is between a plurality of CSI-RSs and a plurality of RACH configurations.
[65]
65. A first radio network node (12) according to any one
Petition 870190095211, of 09/23/2019, p. 235/280
13/14 of claims 63 to 64, wherein no more than one RACH configuration is mapped to a CSI-RS.
[66]
66. A first radio network node (12) according to any one of claims 63 to 65, wherein a RACH configuration comprises time and frequency resources to be used for transmitting a RACH preamble or a specific preamble.
[67]
67. A first radio network node (12) according to any one of claims 63 to 66, wherein the RACH configuration comprises a time window for receiving a random access response, RAR, or a configuration of a physical channel associated with RAR.
[68]
68. A first radio network node (12) according to any one of claims 63 to 67, whereby said wireless device is operative to transmit the indication in a radio resource control message, RRC.
[69]
69. A first radio network node (12) according to any one of claims 63 to 68, whereby said wireless device is additionally operative to obtain the mapping between one or more CSI-RSs and one or more configurations of RACH.
[70]
70. A computer program product comprising instructions, which, when executed on at least one processor, cause the at least one processor to perform any of the methods according to any of claims 1 to 23, as performed by the device without wire (10), the first radio network node (12) or second radio network node (13).
[71]
71. A computer-readable storage medium that has a computer program product stored therein containing instructions that, when executed on at least one
Petition 870190095211, of 09/23/2019, p. 236/280
14/14 processor, cause the at least one processor to execute according to any one of claims 1 to 23, as performed by the wireless device (10), the first radio network node (12) or the second node radio network (13).

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