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    • 专利摘要:
    Certain aspects of the present disclosure provide techniques for multi-stage channel reservation signals for direction transmission and reception. In certain respects, a method of wireless communication by a cell is provided. The method generally includes determining a portion of a shared spectrum for at least one to send or receive a transmission and transmit a plurality of channel reservation signals associated with a plurality of beams to reserve the shared spectrum portion.
    公开号:BR112019007086A2
    申请号:R112019007086
    申请日:2017-10-11
    公开日:2019-10-01
    发明作者:Kamel Sadek Ahmed；Sun Jing；Adel Kadous Tamer
    申请人:Qualcomm Inc；
    IPC主号:
    专利说明:

    MULTI-STAGE CHANNEL RESERVE SIGNAL FOR DIRECTIONAL TRANSMISSION AND RECEPTION
    Cross-reference for related application and priority claim [0001]
    This request claims priority for the
    US Application No 2 15 / 728.945, filed October 10, 2017, which claims benefit and priority to Provisional US Patent Application No 2 62 / 406.602, filed on October 11 , 2016, which are both incorporated herein by reference in its entirety for all applicable purposes.
    FUNDAMENTALS
    Field of Disclosure [0002] Aspects of the present disclosure generally refer to wireless communications systems and, more particularly, to a multistage channel reserve signal for directional transmission and reception.
    Related technique description [0003]
    Wireless communication systems are widely deployed to provide various telecommunications services, such as telephony, video, data, messages and broadcasts. Typical wireless communication systems can employ multiple access technologies capable of supporting communication with multiple users, sharing the available resources of the system (for example, bandwidth, transmission power). Examples of such multiple access technologies include Long Term Evolution (LTE), Advanced LTE (LTE-A) systems,
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    2/46 code division (CDMA), time division multiple access systems (TDMA), frequency division multiple access systems (FDMA), orthogonal frequency division multiple access systems (OFDMA), access systems multiple by single carrier frequency division (SCFDMA) and multiple access systems by time division synchronous code division (TD-SCDMA).
    [0004] In some examples, a wireless multiple access communication system may include a number of base stations (BSs), each simultaneously supporting communication for multiple communication devices, also known as user equipment (UEs). In the LTE or LTE-A network, a set of one or more BSs can define an eNodeB (eNB). In other examples, such as a new radio (for example, on a next generation or 5G network), a wireless multiple access communication system may include multiple distributed units (DUs) (for example, edge units (UEs), edge nodes (ENs), radio heads (RHs), intelligent radio heads (SRHs), transmit reception points (TRPs), etc.) in communication with several central units (UCs) (for example, central nodes ( CNs), access node controllers (ANCs), etc.), where a set of one or more DUs, in communication with a UC, can define an access node (for example, an NR BS, an NR NB, a network node, 5G NB, a Next Generation NB) (gNB), etc.). A BS or DU can communicate with a set of UEs on downlink channels (for example, for transmissions from a base station or for a UE) and uplink channels (for example, for transmissions from a UE to a BS
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    3/46 or DU).
    [0005] Various access technologies have been adopted in various telecommunication standards to provide a common protocol that allows different wireless devices to communicate at the municipal, national, regional and even global levels. An example of an emerging telecommunication standard is NR, for example, 5G radio access. NR is a set of improvements to the mobile LTE standard promulgated by the Third Generation Partnership Project (3GPP). It is designed to better support mobile broadband Internet access, improving spectral efficiency, reducing costs, improving services, making use of the new spectrum and integrating better with other open standards using OFDMA with a cyclic prefix (CP) in the downlink (DL) and uplink (UL), as well as beam forming support, multiple input multiple output technology (MIMO) and carrier aggregation.
    [0006] However, as the demand for access to mobile broadband continues to increase, there is a need for further improvements in LTE and NR technology. Preferably, these improvements should apply to other multi-access technologies and to the telecommunication standards that employ those technologies.
    BRIEF SUMMARY [0007] Disclosure systems, methods and devices each have several aspects, none of which is solely responsible for their desirable attributes. Without limiting the scope of this disclosure, as expressed by
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    4/46 claims to follow, some features will be discussed shortly. After considering this discussion, and particularly after reading the section entitled Detailed description, we will understand how the features in this disclosure provide advantages that include better communication between access points and stations on a wireless network.
    [0008] Certain aspects of the present disclosure generally relate to methods and apparatus for a multistage channel reserve signal for directional transmission and reception.
    [0009] Certain aspects of the present disclosure provide a method that can be performed, for example, by a cell for channel reservation. The method usually includes determining a portion of a shared spectrum for at least one to send or receive a transmission. The method includes transmitting a plurality of channel reserve signals associated with a plurality of beams to reserve the portion of the shared spectrum.
    [0010] Certain aspects of the present disclosure provide an apparatus such as a cell for channel reservation. The apparatus generally includes means for determining a portion of a shared spectrum for at least one to send or receive a transmission. The apparatus includes means for transmitting a plurality of channel reserve signals associated with a plurality of beams to reserve the portion of the shared spectrum.
    [0011] Certain aspects of the present disclosure provide an apparatus such as a cell for reserving
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    5/46 channel. The apparatus generally includes at least one processor coupled to a memory and configured to determine a portion of a shared spectrum for at least one to send or receive a transmission. The apparatus includes a transmitter configured to transmit a plurality of channel reserve signals associated with a plurality of beams to reserve the portion of the shared spectrum.
    [0012] Certain aspects of the present disclosure provide a computer-readable medium having computer executable code stored on it for channel reservation by a cell. The code generally includes code for determining a portion of a shared spectrum for at least one to send or receive a transmission and code for transmitting a plurality of channel reserve signals associated with a plurality of beams to reserve the shared spectrum portion.
    [0013] Aspects generally include methods, apparatus, systems, computer-readable media and processing systems, as substantially described herein by reference and as illustrated by the attached drawings.
    [0014] For the fulfillment of the previous and related purposes, one or more aspects comprise the characteristics to be described completely and particularly pointed out in the claims. The description that follows and the accompanying drawings present in detail certain illustrative features of one or more aspects. These characteristics are indicative, however, of just a few of the many ways in which the principles of various
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    6/4 6 aspects can be used, and this description is intended to include all those aspects and their equivalents.
    BRIEF DESCRIPTION OF THE DRAWINGS [0015] In order for the way in which the aforementioned features of the present disclosure can be understood in detail, a more particular description, summarized above, can be made by reference to aspects, some of which are illustrated in the attached drawings . It should be noted, however, that the attached drawings illustrate only certain aspects typical of this disclosure and, therefore, should not be considered as limiting its scope, since the description can admit other equally effective aspects.
    [0016] Figure 1 is a block diagram that conceptually illustrates an example of a telecommunications system, according to certain aspects of the present disclosure.
    [0017] Figure 2 is a block diagram illustrating an example logical architecture of a distributed radio access network (RAN), according to certain aspects of the present disclosure.
    [0018] Figure 3 is a diagram that illustrates an example of physical architecture of a distributed RAN, according to certain aspects of this disclosure.
    [0019] Figure 4 is a block diagram that conceptually illustrates a drawing of an example base station (BS) and user equipment (UE), in accordance with certain aspects of the present description.
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    7/46 [0020] Figure 5 is a diagram showing examples for implementing a stack of communication protocols, in accordance with certain aspects of the present disclosure.
    [0021] Figure 6 illustrates an example of a subframe centered on the downlink, according to certain aspects of the present disclosure.
    [0022] Figure 7 illustrates an example of a subframe centered on the uplink, according to certain aspects of the present disclosure.
    [0023] Figure 8 illustrates an example of support zones for wireless communication systems, according to certain aspects of the present disclosure.
    [0024] Figure 9 is a flow diagram illustrating example operations that can be performed by a cell for channel reservation, according to certain aspects of the present disclosure.
    [0025] Figure 10 is a transmission schedule diagram that illustrates the transmission of reserve signals from multiple channels associated with a plurality of beams, according to certain aspects of the present disclosure, according to certain aspects of the present disclosure.
    [0026] To facilitate understanding, identical reference numbers were used, when possible, to designate identical elements that are common to the Figures. It is contemplated that the elements disclosed in one aspect can be used beneficially in other aspects without specific recitation.
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    8/46
    DETAILED DESCRIPTION [0027] Aspects of the present disclosure provide apparatus, methods, processing systems and computer-readable media for NR (new radio access technology or 5G technology). NR can support various wireless communication services, such as millimeter wave (mmW) targeting high carrier frequency (for example, 27 GHz or more), multiple multiple inputs (MIMO), etc.
    [0028] In some cases, such systems can reserve spectrum channel resources using a channel reserve signal. However, the ideal beam may not be known, the transmission target may not be known, there may be an energy imbalance, etc.
    [0029] Aspects of the present disclosure provide techniques and apparatus for a multi-stage channel reservation for directional communications. For example, a cell can determine a part of a shared spectrum (for example, a channel) to reserve for transmission and / or reception. The cell can transmit reserve signals from multiple channels associated with a plurality of beams to reserve the portion of the shared spectrum. The cell can also determine one or more beam directions to send the channel reserve signals.
    [0030] The following description provides examples, and is not limiting the scope, applicability, or examples set out in the claims. Changes can be made to the function and arrangement of the elements discussed without
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    9/46 depart from the scope of the disclosure. Various examples may omit, replace, or add various procedures or components as appropriate. For example, the methods described can be performed in a different order than described, and several steps can be added, omitted or combined. In addition, the features described in relation to some examples can be combined into some other examples. For example, an apparatus can be implemented or a method can be practiced using any number of aspects set out here. In addition, the scope of the disclosure is intended to cover such an apparatus or method that is practiced using another structure, functionality or structure and functionality in addition to or in addition to the various aspects of the disclosure presented here. It should be understood that any aspect of the disclosure disclosed herein may be incorporated by one or more elements of a claim. The word example is used here to mean serving as an example, example or illustration. Any aspect described here as an example is not necessarily to be interpreted as preferred or advantageous over other aspects.
    [0031] The techniques described here can be used for various wireless communication networks, such as LTE, CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks. The terms network and system are often used interchangeably. A CDMA network can implement radio technology such as Universal Land Radio Access (UTRA), cdma2000, etc. UTRA includes band CDMA
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    10/46 wide (WCDMA) and other CDMA variants. The cdma 2000 covers the IS-2000, IS-95 and IS-856 standards. A TDMA network can implement radio technology like the Global System for Mobile Communications (GSM). An OFDMA network can implement radio technology with NR (for example, 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash -OFDMA, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunication System (UMTS). NR is an emerging wireless technology under development in conjunction with the 5G Technology Forum (5GTF). 3GPP Long Term Evolution (LTE) and Advanced LTE (LTE-A) are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization called the Third Generation Partnership Project (3GPP). Cdma 2000 and UMB are described in documents from an organization called the Third Generation Partnership Project 2 (3GPP2). The techniques described here can be used for the wireless networks and radio technologies mentioned above, as well as other wireless networks and radio technologies. For clarity, although aspects can be described here using terminology commonly associated with 3G and / or 4G wireless technologies, aspects of the present disclosure can be applied to other generation-based communication systems, such as 5G and later, including NR.
    EXAMPLE OF WIRELESS COMMUNICATION SYSTEM [0032] Figure 1 illustrates an example of wireless network 100, in which aspects of the present disclosure can be
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    11/46 accomplished. For example, wireless network 100 can be a new radio (NR) or 5G network. A cell, such as a BS 110, can determine a part of a shared spectrum (for example, a channel) to reserve to send or receive transmissions. BS 110 can send multiple multiple channel reserve signals (e.g., a plurality of) to reserve the portion of the shared spectrum. BS 110 can determine one or more beam directions to send the plurality of channel reserve signals.
    [0033] As illustrated in Figure 1, wireless network 100 may include a number of BSs 110 and other network entities. A BS can be a station that communicates with UEs. Each BS 110 can provide communication coverage for a particular geographic area. In 3GPP, the term cell can refer to a coverage area of a subsystem of Node B and / or Node B that serves that coverage area, depending on the context in which the term is used. In NR systems, the term cell and the Next Generation Node B (gNB), NB, 5G NB, access point (AP), NR BS or transmission reception point (TRP) can be interchangeable. In some instances, a cell may not necessarily be stationary, and the cell's geographical area may move according to the location of a mobile BS. In some examples, BSs can be interconnected with each other and / or with one or more other BSs or network nodes (not shown) on wireless network 100 through various types of backhaul interfaces, such as a direct physical connection, a virtual network, or similar, using any suitable transport network.
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    12/46 [0034] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support specific radio access technology (RAT) and can operate on one or more frequencies. A RAT can also be called a radio technology, an air interface, etc. A frequency can also be called a carrier, a frequency channel, etc. Each frequency can support a single RAT in a given geographic area, in order to avoid interference between wireless networks from different RATs. In some cases, NR networks or RAT 5G networks can be deployed.
    [0035] A BS can provide communication coverage for a macro cell, a peak cell, a femto cell and / or other cell types. A macro cell can cover a relatively large geographical area (for example, several kilometers in radius) and can allow unrestricted access by UEs with a service subscription. A peak cell can cover a relatively small geographical area and can allow unrestricted access by UEs with a service subscription. A femto cell can cover a relatively small geographic area (for example, a house) and can allow restricted access by UEs that are associated with the femto cell (for example, UEs in a Closed Subscriber Group (CSG), UEs for users in home, etc. A BS for a macro cell can be called a macro BS A BS for a peak cell can be called a peak BS A BS for a femto cell can be called a femto BS or home BS In the example shown in Figure 1, BS 110a,
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    13/46
    110b and 110c can be BS macros for macro cells 102a, 102b and 102c, respectively. BS 11Ox can be a peak BS for a 102x peak cell. The IlOy and llOz BSs can be femto BS for the 102y and 102z femto cells, respectively. A BS can support one or more cells (for example, three).
    [0036] Wireless network 100 may also include relay stations. A relay station is a station that receives a transmission of data and / or other information from an upstream station (for example, a BS or a UE) and sends a transmission of the data and / or other information to a downstream station ( for example, EU or a BS). A relay station can also be a UE that broadcasts transmissions to other UEs. In the example shown in Figure 1, an HOr relay station can communicate with BS 110a and UE 120r in order to facilitate communication between BS 110a and UE 120r. A relay station can also be called a relay BS, a relay, etc.
    [0037] Wireless network 100 can be a heterogeneous network that includes BSs of different types, for example, macro BS, peak BS, femto BS, retransmissions, etc. These different types of BSs can have different levels of transmission power, different coverage areas, and different impact on interference on the wireless network 100. For example, a macro BS can have a high level of transmission power (for example, 20 Watts) while peak BS, femto BS and retransmissions can have a power level of
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    14/46 lower transmission (for example, 1 Watt).
    [0038] Wireless network 100 can support synchronous or asynchronous operation. For synchronous operation, BSs can have similar frame timing, and transmissions from different BSs can be approximately time aligned. For asynchronous operation, BSs may have different frame timings, and transmissions from different BSs may not be time aligned. The techniques described here can be used for synchronous and asynchronous operation.
    [0039] A network controller 130 can couple with a set of BS and provide coordination and control for those BSs. The network controller 130 can communicate with BS 110 via a backhaul. BS 110 can also communicate with each other, for example, directly or indirectly via wireless or wired backhaul.
    [0040] UEs 120 (e.g. 120x, 120y, etc.) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, a Customer Facility Equipment (CPE), a cell phone, a smart phone, a personal digital assistant ( PDA), a wireless modem, a wireless communication device, a portable device, a laptop, a cordless phone, a local wireless loop station (WLL), a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, medical device or medical equipment, a biometric sensor / device, a device
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    15/46 wearable like a smart watch, smart clothes, smart glasses, a smart bracelet, smart jewelry (for example, a smart ring, a smart bracelet, etc.) entertainment device (for example, a music device, a device video, a satellite radio, etc.), a vehicle component or sensor, an intelligent meter / sensor, industrially manufactured equipment, a global positioning system device or any other suitable device, configured to communicate through a medium wireless or wired. Some UEs can be considered machine-type communication devices (MTC) or evolved MTC (eMTC) devices. The MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location indicators, etc., which can communicate with a BS, another device (for example, remote device) or some other entity. A wireless node can provide, for example, connectivity to or to a network (for example, a wide area network, such as the Internet or a cellular network) over a wired or wireless communication link. Some UEs can be considered Internet of Things (loT) devices or narrowband loT (NB-IoT) devices.
    [0041] In Figure 1, a full line with double arrows indicates desired transmissions between a UE and a serving BS, which is a BS designated to serve the UE on the downlink and / or uplink. A finely dashed line with double arrows indicates interfering transmissions between a UE and a BS.
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    16/46 [0042] Certain wireless networks (for example, LTE networks) use orthogonal frequency division multiplexing (OFDM) in the downlink and single carrier frequency division multiplexing (SC-FDM) in the uplink. OFDM and SC-FDM partition the system's bandwidth into multiple orthogonal (K) subcarriers, which are also commonly referred to as tones, boxes, etc. Each subcarrier can be modulated with data. In general, the modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can be dependent on the system's bandwidth. For example, the spacing of the subcarriers can be 15 kHz and the minimum allocation of resources (called a resource block) can be 12 subcarriers (or 180 kHz). Consequently, the nominal FFT size can equal 128, 256, 512, 1024 or 2048 for system bandwidth of 1.25, 2.5, 5, 10 or 20 megahertz (MHz), respectively. The system's bandwidth can also be partitioned into sub-bands. For example, a subband can cover 1.08 MHz (ie 6 RBs), and there can be 1, 2, 4, 8 or 16 subbands for 1.25, 2.5 system bandwidth , 5, 10 or 20 MHz, respectively.
    [0043] While the aspects of the examples described in this document may be associated with LTE technologies, aspects of this disclosure may apply to other wireless communications systems, such as
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    17/46
    NR.
    [0044] NR can use OFDM with a CP in the uplink and downlink and include support for semi-duplex operation using TDD. A single component carrier bandwidth of 100 MHz can be supported. NR resource blocks can span 12 subcarriers with a subcarrier bandwidth of 75 kHz over a duration of 0.1 ms. Each radio frame can consist of two half-frames, each half-frame including 5 sub-frames, with a length of 10 ms. Consequently, each subframe can be 1 ms long. Each subframe can indicate a link direction (ie DL or UL) for data transmission and the link direction for each subframe can be switched dynamically. Each subframe can include DL / UL data, as well as DL / UL control data. The UL and DL sub-frames for NR can be as described in more detail below in relation to Figures 6 and 7. The beam conformation can be supported and the beam direction can be dynamically configured. MIMO transmissions with pre-coding can also be supported. The MIMO configurations on the DL can support up to 8 transmission antennas with multi-layered DL transmissions of up to 8 streams and up to 2 streams per UE. Multilayer transmissions with up to 2 streams per EU can be supported. Multiple cell aggregation can be supported with up to 8 server cells. Alternatively, NR can support a different air interface, different from one based on OFDM. NR networks can include entities such as UCs and / or DUs.
    [0045] In LTE, the time interval of
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    18/46 basic transmission (TTI) or the duration of the packet is the 1 subframe. In NR, a subframe is still 1 ms, but the basic TTI is called a partition. A subframe contains a variable number of partitions (for example, 1, 2, 4, 8, 16, partitions) depending on the tone spacing (for example, 15, 30, 60, 120, 240 .. kHz).
    [0046] In some examples, access to the air interface can be programmed, in which a programming entity (for example, a BS) allocates resources for communication between some or all devices and equipment within its service area or cell. Within this disclosure, as discussed below, the programming entity may be responsible for programming, allocating, reconfiguring and releasing resources for one or more subordinate entities. That is, for scheduled communication, subordinate entities use resources allocated by the programming entity. BSs are not the only entities that can function as a programming entity. That is, in some examples, an UE can function as a programming entity, programming resources for one or more subordinate entities (for example, one or more other UEs). In this example, the UE is functioning as a programming entity, and other UEs use resources programmed by the UE for wireless communication. A UE can function as a programming entity in a peer-to-peer (P2P) network and / or a mesh network. In an example of a mesh network, UEs can optionally communicate directly with each other, in addition to communicating with the programming entity.
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    19/46 [0047] Thus, in a wireless communications network with programmed access to time frequency resources and having a cellular configuration, a P2P configuration and a mesh configuration, a programming entity and one or more subordinate entities can communicate using the programmed resources.
    [0048] Figure 2 illustrates an example of a logical architecture of a distributed radio access network (RAN) 200, which can be implemented in the wireless communication system illustrated in Figure 1. A 5G 206 access node can include a controller access node (ANC) 202. ANC 202 can be a central unit (CU) of the distributed RAN 200. The backhaul interface for the next generation core network (NG-CN) 204 may end at ANC 202. The return interface for next generation next-generation nodes (NG-ANs) 210 may end at ANC 202. The ANC 202 may include one or more TRPs 208 (which may also be referred to as BSs, gNBs, NR BSs, NBs, 5G NBs, APs or some other term). As described above, a TRP can be used interchangeably with a cell.
    [0049] TRPs 208 can be a DU. TRPs can be connected to an ANC (ANC 202) or more than one ANC (not shown). For example, for RAN sharing, radio service (RaaS) and service-specific AND deployments, the TRP 208 can be connected to more than one ANC. A TRP 208 can include one or more antenna ports. TRPs can be configured for individually (for example, dynamic selection) or jointly (for example, transmission
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    20/46 joint) to serve traffic to an UE.
    [0050] The logical architecture can support fronthauling solutions through different types of deployment. For example, the logical architecture can be based on transmission network resources (for example, bandwidth, latency and / or jitter).
    [0051] Logical architecture can share
    resources and / or components with 0 LTE. 0 NG-AN 210 can support dual connectivity with NR. 0 NG-AN 210 can share a common fronthaul for LTE and NR.
    [0052] The logical architecture may allow cooperation between TRPs 208. For example, cooperation can be predefined within a TRP and / or through TRPs via ANC 202. No inter-TRP interface may be required / present.
    [0053] The logical architecture can support a dynamic configuration of logical functions. As will be described in more detail with reference to Figure 5, the Radio Resource Control (RRC) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, Control layer Media Access (MAC) and a Physical layer (PHY) can be adaptively placed in the DU or CU (for example, TRP or ANC, respectively). A BS can include a UC (for example, ANC 202) and / or one or more DUs (for example, one or more TRPs 208).
    [0054] Figure 3 illustrates an example of physical architecture of a distributed RAN 300, according to
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    21/46 aspects of this disclosure. A centralized central network unit (C-CU) 302 can host major network functions. The C-CU 302 can be deployed centrally. C-CU functionality can be downloaded (for example, for advanced wireless services (AWS)) in an effort to handle peak capacity.
    [0055] A centralized RAN unit (C-RU) 304 can host one or more ANC functions. The C-RU 304 can host major network functions locally. The C-RU 304 can have distributed distribution. The C-RU 304 may be near the edge of the network.
    [0056] A DU 306 can host one or more TRPs (edge node (EN), edge unit (EU), radio head (RH), smart radio head (SRH) or similar). The DU 306 can be located at the edges of the network with radio frequency (RF) functionality.
    [0057] Figure 4 illustrates examples of components of BS 110 and UE 120 illustrated in Figure 1, which can be used to implement aspects of the present disclosure. For example, antennas 452, Tx / Rx 222, processors 466, 458, 464 and / or controller / processor 480 of UE 120 and / or antennas 434, processors 460, 420, 438 and / or controller / processor 440 of BS 110 can be used to perform the operations described and illustrated herein with reference to Figures 9 and 10. BS 110 processors can determine a portion of a spectrum for transmission and / or reception. Components of the BS 110 transmission chain can send multiple channel backup signals to
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    22/46 reserve the portion of the spectrum.
    [0058] For a restricted association scenario, BS 110 can be BS macro 110c in Figure 1 and UE 120 can be UE 120y. BS 110 can also be a BS of some other type. BS 110 can be equipped with antennas 434a at 434t, and UE 120 can be equipped with antennas 452a at 452r.
    [0059] At BS 110, a transmission processor 420 can receive data from a data source 412 and control information from a controller / processor 440. The control information can be for the Physical Diffusion Channel (PBCH), Indicator Channel Physical Control Format (PCFICH), Physical Hybrid ARQ Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), etc. The data can be for the shared physical downlink channel (PDSCH), etc. Processor 420 can process (e.g., coding map and symbols) data and control information to obtain data symbols and control symbols, respectively. Processor 420 can also generate reference symbols, for example, for PSS, SSS and cell-specific reference signal. A transmission 430 multi-input and multiple-output (MIMO) processor (TX) can perform spatial processing (for example, pre-coding) on data symbols, control symbols and / or reference symbols, if applicable, and can provide data streams. output symbols to modulators (MODs) 432a to 432t. Each 432 modulator can process a respective output symbol stream (for example, for OFDM, etc.) to obtain an output sample stream. Each 432 modulator can also process
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    23/46 the output sample stream (eg convert to analog, amplify, filter and convert upwards) to obtain a downlink signal. The downlink signals from modulators 432a to 432t can be transmitted through antennas 434a to 434t, respectively.
    [0060] In UE 120, antennas 452a to 452r can receive downlink signals from base station 110 and can provide received signals to demodulators (DEMODs) 454a to 454r, respectively. Each demodulator 454 can condition (for example, filter, amplify, negatively convert and digitize) a respective received signal to obtain input samples. Each demodulator 454 can further process the input samples (for example, for OFDM, etc.) to obtain received symbols. A MIMO 456 detector can obtain symbols received from all demodulators 454a through 454r, perform MIMO detection on received symbols, if applicable, and provide detected symbols. A receiving processor 458 can process (e.g., demodulate, deinterleave and decode) the detected symbols, provide decoded data to the UE 120 to a data collector 460, and provide decoded control information to a controller / processor 480.
    [0061] On the uplink, on the UE 120, a transmission processor 464 can receive and process data (for example, for the Shared Physical Uplink Channel (PUSCH)) from a 462 data source and control information (for example, for the Uplink Physical Control Channel (PUCCH) of the 480 controller / processor. The 464 transmit processor
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    24/46 can also generate reference symbols for a reference signal. The symbols for the 464 transmission processor can be pre-encoded by a TXM MIMO 466 processor if applicable, further processed by demodulators 454a through 454r (eg for SC-FDM, etc.), and transmitted to BS 110. In BS 110, UE 120 uplink signals can be received by antennas 434, processed by modulators 432, detected by a MIMO detector 436, if applicable, and further processed by a receiving processor 438 to obtain decoded data and control information sent by UE 120. The receiving processor 438 can deliver the decrypted data to a data warehouse
    439 and the decoded control information to the controller / processor 440.
    [0062] The controllers / processors 440 and 480 can direct the operation on BS 110 and UE 120, respectively. The 440 processor and / or other processors and modules in BS 110 can perform or direct, for example, the execution of various processes for the techniques described here. Processor 480 and / or other processors and modules in UE 120 can also perform or direct, for example, the execution of processes for the techniques described herein. The processor
    440 and / or other processors and modules in BS 110 can also perform or direct, for example, the execution of the functional blocks illustrated in Figure 9, and / or other processes for the techniques described here. Memories 442 and 482 can store data and program codes for BS 110 and UE 120, respectively. A 444 programmer can program UEs
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    25/46 for downlink and / or uplink data transmission.
    [0063] Figure 5 illustrates a diagram 500 showing examples for implementing a stack of communications protocols, in accordance with aspects of the present disclosure. The illustrated communications protocol stacks can be implemented by devices operating on a 5G system (for example, a system that supports uplink-based mobility). Diagram 500 illustrates a communications protocol stack including a Radio Resource Control (RRC) layer 510, a 515 Packet Data Convergence Protocol (PDC) layer, a Radio Link Control (RLC) layer 525 ), a Medium Access Control (MAC) layer 525 and a Physical (PHY) layer 530. In many instances, layers of a protocol stack can be implemented as separate software modules, portions of a processor or ASIC, portions of non-placed devices connected by a communications link or various combinations thereof. Placed and unplaced implementations can be used, for example, in a protocol stack for a network access device (for example, ANs, CUs and / or DUs) or a UE.
    [0064] A first option 505-a shows a split implementation of a protocol stack, in which the implementation of the protocol stack is split between a centralized network access device (for example, an ANC 202 in Figure 2) and device distributed network access (for example, DU 208 in figure 2). In the first option 505-a, a layer of RRC 510 and a layer of PDCP 515
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    26/46 can be implemented by the central unit, and an RLC 520 layer, a MAC 525 layer and a PHY 530 layer can be implemented by the DU. In several examples, UC and DU can be placed or not placed. The first option 505-a can be useful in a macro cell, micro cell or peak implantation.
    [0065] A second option 505-b shows a unified implementation of a protocol stack, in which the protocol stack is implemented on a single network access device (for example, AN, NR BS, NR NB, a network (NN), or similar.). In the second option, the RRC 510 layer, the PDCP 515 layer, the RLC 520 layer, the MAC 525 layer and the PHY 530 layer can be implemented by the AN. The second option 505-b can be useful in a femto cell implantation.
    [0066] Regardless of whether a network access device implements part or all of a protocol stack, a UE can implement an entire protocol stack (for example, the RRC 510 layer, the PDCP 515 layer, the RLC layer 52, the MAC layer 525, and the PHY layer 530).
    [0067] Ά Figure 6 is a diagram showing an example of a subframe 600 centered on the DL. Subframe 600 centered on the DL may include a control portion 602. Portion control 602 may exist on the initial or beginning portion of the subframe centered on the DL 6008. The control portion 602 may include various programming information and / or control information corresponding to several portions
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    27/46 of the subframe centered on the DL 600. In some configurations, ο control of the 602 portion can be a physical DL control channel (PDCCH), as shown in Figure 6. The subframe 600 centered on the DL can also include a data portion of DL 604. The data portion of DL 604 can sometimes be termed as the load of subframe 600 centered on the DL. The DL 604 data portion may include the communication resources used to communicate DL data from the programming entity (for example, UE or BS) to the subordinate entity (for example, UE). In some configurations, the DL 604 data portion may be a physical DL shared channel (PDSCH).
    [0068] Sub-frame 600 centered on the DL may also include a portion of common UL 606. The common portion of UL 606 may be termed an explosion of UL, a common explosion of UL and / or various other suitable terms. The common portion of UL 606 may include feedback information corresponding to various portions of subframe 600 centered on the DL. For example, the common UL portion 606 may include feedback information corresponding to control portion 602. Non-limiting examples of feedback information may include an ACK signal, a NACK signal, an HARQ indicator and / or various other suitable types of information . The common UL 606 portion may include additional or alternative information, such as information pertaining to random access channel (RACH) procedures, programming requests (SRs) and various other suitable types of information. As illustrated in Figure 6, the end
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    28/46 of the DL 604 data portion can be time separated from the beginning of the common UL 606 portion. This time separation can be termed as a gap, a guard period, a guard interval and / or several others terms. This separation provides time for switching from DL communication (for example, receiving operation by the subordinate entity (for example, UE)) to UL communication (for example, transmission by the subordinate entity (for example, UE)). A person skilled in the art will understand that the above is merely an example of a subframe centered on DL and alternative structures having similar characteristics can exist without necessarily deviating from the aspects described here.
    [0069] Figure 7 is a diagram showing an example of a subframe 700 centered on UL. The eccentric subframe of UL may include a control portion 702. The control portion 702 may exist in the initial or beginning portion of subframe 700 centered on the UL. The control portion 702 in Figure 7 can be similar to the control portion 602 described above with reference to Figure 6. The UL-centered subframe 700 can also include a UL 704 data portion. The UL data portion 704 can be termed as the payload of sub-frame 700 centered on UL. The UL portion can refer to the communication resources used to communicate UL data from the subordinate entity (for example, UE) to the programming entity (for example, UE or BS). In some configurations, control portion 702 can be a PDCCH.
    Petition 870190033484, of 4/8/2019, p. 33/69
    29/46 [0070] As shown in Figure 7, the end of the control portion 702 can be separated in time from the beginning of the UL 704 data portion. This time separation can be termed as a gap, guard period, guard interval and / or various other suitable terms. This separation provides time for the exchange of communication from DL (for example, reception operation by the programming entity) to UL communication (for example, transmission by the programming entity). The UL-centered subframe 700 may also include a portion of common UL 70 6. The common portion of UL 70 6 in Figure 7 may be similar to the portion of common UL 706 described above with reference to Figure 7. The common portion of UL UL 706 can be additional or alternative included in the information regarding the channel quality indicator (CQI), sounding reference signals (SRSs) and several other suitable types of information. A person skilled in the art will understand that the above is just an example of a subframe centered on UL and that alternative structures with similar characteristics can exist without necessarily deviating from the aspects described here. In one example, a frame may include sub-frames centered on UL and sub frames centered on DL. In this example, the ratio of UL-centered subframes to the DL subframes in a frame can be dynamically adjusted based on the amount of UL data and the amount of DL data that is transmitted. For example, if there is more UL data, the ratio of UL-centered subframes to DL subframes may be increased. On the other hand, if there is more data
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    30/46
    DL, then the ratio of UL-centered subframes to DL subframes can be decreased.
    [0071] An UE can operate in a variety of radio resource configurations, including a configuration associated with broadcast pilots using a dedicated set of resources (for example, a dedicated radio resource control state (RRC) etc.) or a configuration associated with the transmission of pilots using a common set of resources (for example, a common state of the RRC, etc.). When operating in the dedicated RRC state, the UE can select a dedicated set of resources to transmit a pilot signal to a network. When operating in the RRC common state, the UE can select a common set of resources to transmit a pilot signal to the network. In any case, a pilot signal transmitted by the UE can be received by one or more network access devices, such as an AN, or a DU, or parts of it. Each access device to the receiving network can be configured to receive and measure pilot signals transmitted in the common set of resources, and also receive and measure pilot signals transmitted in dedicated sets of resources allocated to the UEs for which the network access device is member of a monitoring set of network access devices for the UE. One or more of the receiving network access devices, or a UC to which the network access receiving device transmits pilot signal measurements, can use the measurements to identify service cells to the UEs or to initiate a cell change service for one or more of the UEs.
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    31/46 [0072] Figure 8 illustrates an example of a wireless communication system 800 that supports a number of zones, in accordance with aspects of the present disclosure. The wireless communication system 800 may include a number of zones (including, for example, a first zone 805-a (Zone 1), a second zone 805-b (Zone 2) and a third zone 805-c (Zone 3 )). Several UEs can move within or between zones.
    [0073] A zone can include multiple cells, and cells within a zone can be synchronized (for example, cells can share the same time). The wireless communication system 800 can include examples of non-overlapping zones (for example, the first zone 805-a and the second zone 805-b) and overlapping zones (for example, the first zone 805-a and the third zone 805-c). In some examples, the first zone 805-a and the second zone 805-b can each include one or more macro cells, micro-cells or pico cells, and the third zone 1105-c can include one or more femto cells.
    [0074] As an example, UE 850 is shown to be located in the first zone 805-a. If the UE 850 is operating with a radio resource configuration associated with the transmission of pilot signals using a common set of resources, such as a common RRC state, the UE 850 can transmit a pilot signal using a common set of resources. The cells (for example, ANs, DUs, etc.) in the first zone 805-a can monitor the common set of resources for a pilot signal of the UE 850. If the UE 850
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    32/46 is operating with a radio resource configuration associated with the transmission of pilot signals using a dedicated set of resources, such as a dedicated RRC state, the UE 850 can transmit a pilot signal using a dedicated set of resources. The cells of a set of monitoring cells established for UE 850 in the first zone 805-a (for example, a first cell 810-a, a second cell 810-b, and a third cell 810-c) can monitor the set dedicated resources for the pilot signal of the UE 850.
    EXAMPLE OF MULTI-STAGE CHANNEL RESERVE SIGNAL FOR DIRECTIONAL TRANSMISSION AND RECEPTION [0075] Certain communication systems, such as the new radio access technology (NR) system or 5G technology system (for example, 100 wireless network) , can support various wireless communication services, such as millimeter wave (mmW) targeting high carrier frequency (for example, 27 GHz or more), massive machine type communications (mMTC) targeting compatible non-retrograde MTC techniques, etc. .
    [0076] Some communication systems, for example, mmW systems, can use analog and / or digital beam conformation. The beam conformation can compensate for high path losses due to weak radio frequency (RF) propagation. In some cases, wireless devices (for example, such as a base station (BS) 110 and user equipment (EU) 120) may use beam scanning procedures to allow the receiver to identify the best transmit beam. The receiver can then align
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    33/46 its receiving beam with the best transmission beam identified.
    [0077] In an unlicensed and / or shared spectrum, channel reservation can be used to reduce collisions by transmissions by different nodes by accessing the unlicensed / shared spectrum. For example, on certain wireless local area networks (for example, WiFi), wireless devices can transmit send request (RTS) signals and clear to send (CTS) signals for channel reservation.
    [0078] For directional transmission (for example, transmission using the beam conformation), as in mmW and massive MIMO systems, directional channel reserve signals can be used. The directional channel reservation can assume that the node (for example, cell) knows the direction in which data is transmitted or received. For data transmission, the node sends a channel reservation for the transmission signal (CR-T) (for example, similar to the RTS signal) in that direction. For data reception, the node can send a channel reservation for reception signal (CR-R) (for example, similar to the CTS signal) in that direction.
    [0079] In some cases, however, the ideal data transmission direction (for example, better) may not be known. In addition, in some cases, the data transmission target may not be decided, as in the case where the cell serves multiple UEs. In some cases, a transmission power imbalance may exist between the nodes.
    [0080] Thus, techniques and devices for booking
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    34/46 channel for directional transmissions and / or reception are desired.
    [0081] Aspects of the present disclosure provide techniques and devices for a multistage channel reserve signal for directional transmission and reception.
    [0082] Figure 9 is a flow diagram illustrating example 900 operations that can be performed, for example, by a cell (for example, a BS 110) for channel reservation, in accordance with certain aspects of the present disclosure. Operations 900 can begin, in 902, by determining a portion of a shared spectrum (for example, a channel) for at least one to send or receive a transmission. The portion of the shared spectrum, for example, may correspond to a channel being used for communications. The BS can determine one or more beam directions to send the channel reserve signals.
    [0083] In 904, BS transmits (for example, sequentially over time) a plurality of channel reserve signals (for example, a multi-stage) (for example, CR-T and / or CR-R signals) for reserve the specified portion of the spectrum (eg channel). The plurality of channel reservation signals is associated with a plurality of beams. The plurality of channel reservation signals can be transmitted to a plurality of neighboring cells. For example, channel reserve signals can be sent to several adjacent cells (for example, a plurality) that can be interfered with, potentially interfered with, interfering with or potentially interfering with
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    35/46 regarding transmissions to and / or from the BS (for example, to / from its server UEs).
    [0084] BS can transmit reserve signals from multiple channels using time division multiplexing (TDM) in different beams. Reserve signals from multiple channels can contain the same information - for example, reserve the same part of the shared spectrum.
    [0085] The use of multiple channel reserve signals may allow the cell to clear a larger area (for example, signal a greater number of neighboring cells) than a single channel reserve signal. For example, BS can send multiple channel reserve signals (for example, CR-R signals) to reserve the channel (for example, a part of the shared spectrum) from a larger set of neighboring cells (for example, interfering nodes) for reception (for example, to protect the received transmission). BS can send multiple channel reserve signals (eg, CR-T signals) to announce a transmission to a larger set of neighboring cells (eg, interfering nodes) to allow the neighboring set of cells to prepare for interference .
    [0086] According to certain aspects, BS transmits the plurality of channel reserve signals using different beams and / or beam directions. For example, as shown in Figure 9, in 906, BS can send a first channel reserve signal using a first beam (for example, original beam). In one example, optionally, in 908, BS can send a second channel reservation signal
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    36/46 using a second beam wider than the first beam. The broadest beam can be an omnidirectional beam. The wider beam can cover a greater angle.
    [0087] In another example, in addition to the first channel reserve signal using the first beam, optionally, in 910, BS can send multiple channel reserve signals using multiple different direction beams. In some cases, the different steering beams may be in the vicinity (for example, in a similar direction) of the original beam (for example, first). Channel reserve signals transmitted in several directions can have a greater antenna gain than a broader beam (for example, an omnidirectional beam).
    [0088] Transmitting channel reserve signals using the broader beam (for example, the omnidirectional beam) and / or transmitting multiple channel reserve signals in a similar direction can be useful in cases where there is ambiguity in the beam to be used later. For example, these multi-stage channel reserve signals can be useful in cases where the beam is under a beam tracking mechanism that updates the beam, the channel reserve signal is sent before the refinement of the beam tracking and the data transmission / reception beam changed, although it still remains in the same neighborhood.
    [0089] According to certain aspects, BS may know (for example, determine, be aware and / or be indicated) at least some of the neighboring cells (for example
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    37/46 example, interfere / interfered with nodes). Thus, the BS can know the beam direction for these cells. As shown in Figure 9, optionally, in 912, the BS can transmit channel reserve signals to cells in the known directions. Thus, these neighboring cells can be explicitly cleaned (for example, indicated by the reserved portion to protect / reserve the portion of the transmission spectrum by known neighbors). SB may have some knowledge of historical measurements in which neighboring cells are the dominant interferents / victims and the direction of these cells.
    [0090] According to certain aspects, a combination of the above approaches can be used. For example, channel reservation signals using multiple beams, wider beams, omnidirectional beams, beams in a similar direction, and / or beams in known directions can be used. This approach can be useful in cases where the cell has some knowledge, for example, of measuring the history in which the neighboring cells are the dominant interferences / victims and their direction. Extra channel reservation transmissions (for example, signals) can explicitly point to the directions of these nodes.
    [0091] Figure 10 is a transmission schedule diagram 1000 that illustrates the transmission of reserve signals from multiple channels associated with a plurality of beams, in accordance with certain aspects of the present disclosure. As shown in Figure 10, the multiple channel reserve signals (for example, CR with beam 1, CR with beam 2, CR with
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    38/46 beam K) can be transmitted sequentially over time and with different beams. In one example, successive channel reservation signals can be sent immediately (for example, within nanoseconds) one after the other. As shown in Figure 10, the transmission and / or reception of data can follow the channel reservation, for example, performed in the reserved portion of the spectrum.
    [0092] As used here, a sentence referring to at least one of a list of items refers to any combination of those items, including individual members. As an example, at least one of: a, b or c is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination with multiples of the same element (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other request of a, bec).
    [0093] As used here, the term determination covers a wide variety of actions. For example, determining may include calculating, computing, processing, deriving, investigating, searching (for example, looking in a table, database or other data structure), ascertaining, and so on. In addition, determining may include receiving (for example, receiving information), accessing (for example, accessing data in a memory) and the like. In addition, determining may include resolving, selecting, choosing, establishing and the like.
    [0094] The previous description is provided to allow anyone skilled in the art to practice the various aspects described here. Several modifications to
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    39/46 these aspects will be readily apparent to those skilled in the art, and the generic principles defined here can be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown here, but must be in accordance with the full scope consistent with the claims of the language, where the reference to an element in the singular does not mean one and only one unless specifically so stated, but one or more. Unless otherwise indicated, the term some refers to one or more. All structural and functional equivalents to the elements of the various aspects described throughout this description that are known or that are later known to those skilled in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed here is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. No claim element shall be interpreted under the provisions of 35 USC § 112, sixth paragraph, unless the element is expressly recited using the expression means for or, in the case of a method statement, the element is recited using the phrase step for. In addition, nothing disclosed here is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. No claim element shall be construed under the provisions of 35 USC § 112, sixth paragraph, unless the element is expressly recited
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    40/46 using the expression means for or, in the case of a method declaration, the element is recited using the phrase step for. In addition, nothing disclosed here is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. No claim element shall be interpreted under the provisions of 35 USC § 112, sixth paragraph, unless the element is expressly recited using the expression means for or, in the case of a method statement, the element is recited using the phrase step for.
    [0095] The various method operations described above can be performed by any suitable means capable of carrying out the corresponding functions. The media may include various hardware and / or software components and / or modules (hardware and / or software and / or modules), including, but not limited to, a circuit, an application specific integrated circuit (ASIC) or processor . Generally, where there are operations illustrated in the Figures, these operations can have equivalent counterpart components with function and function with similar numbering.
    [0096] The various illustrative logic blocks, modules and circuits described in connection with the present disclosure can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete or transistor gate logic, discrete hardware components,
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    41/46 or any combination of these designed to perform the functions described here. A general purpose processor can be a microprocessor, but, alternatively, the processor can be any commercially available processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other configuration of this type.
    [0097] If implemented in hardware, an example of a hardware configuration can comprise a processing system in a wireless node. The processing system can be implemented with a bus architecture. The bus can include any number of interconnected buses and bridges, depending on the specific application of the processing system and the general design restrictions. The bus can connect multiple circuits, including a processor, machine-readable media and a bus interface. The bus interface can be used to connect a network adapter, among other things, to the processing system via the bus. The network adapter can be used to implement the PHY layer signal processing functions. In the case of a user terminal 120 (see figure 1), a user interface (for example, keyboard, monitor, mouse, joystick, etc.) can also be connected to the bus. The bus can also connect
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    42/46 various other circuits, such as timing sources, peripherals, voltage regulators, power management circuits and the like, which are well known in the art and therefore will not be described further. The processor can be implemented with one or more general purpose and / or special use processors. Examples include microprocessors, microcontrollers, DSP processors and other circuits that can run software. Those skilled in the art will recognize the best way to implement the functionality described for the processing system, depending on the particular application and the general design restrictions imposed on the global system.
    [0098] If implemented in software, the functions can be stored or transmitted as one or more instructions or code in a computer-readable medium. The software must be interpreted broadly to mean instructions, data or any combination thereof, whether called software, firmware, middleware, microcode, hardware description language or others. Computer-readable media includes computer storage media and communication media, including any medium that facilitates the transfer of a computer program from one place to another. The processor may be responsible for managing general processing and the bus, including running software modules stored on machine-readable storage media. A computer-readable storage medium can be attached to a processor so that the processor can read information and write
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    43/46 information on the storage medium. Alternatively, the storage medium can be an integral part of the processor. For example, machine-readable media may include a transmission line, a data-modulated carrier wave and / or a computer-readable storage medium with instructions stored separately from the wireless node, all of which can be accessed by processor through the bus interface. Alternatively, or in addition, machine-readable media, or any part of it, can be integrated into the processor, just as the case may be with general log and / or cache files. Examples of machine-readable storage media may include, for example, RAM (Random Access Memory), flash memory, ROM (Read-Only Memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory) , EEPROM (electrically erasable programmable read-only memory), registers, magnetic disks, optical disks, hard disks or any other suitable storage medium, or any combination thereof. Machine-readable media can be incorporated into a computer program product.
    [0099] A software module can comprise a single instruction, or many instructions, and can be distributed across several different code segments, between different programs, and across multiple storage media. Computer-readable media can include multiple software modules. The software modules include instructions that, when executed by a device as a
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    44/46 processor, cause the processing system to perform various functions. The software modules can include a transmission module and a receiver module. Each software module can reside on a single storage device or be distributed across multiple storage devices. As an example, a software module can be loaded into RAM memory from a hard disk when a triggering event occurs. During the execution of the software module, the processor can load some of the instructions in the cache to increase the access speed. One or more lines of cache can then be loaded into a general log file for execution by the processor. When referring to the functionality of a software module below, it will be understood that such functionality is implemented by the processor when executing instructions for that software module.
    [0100] Furthermore, any connection is appropriately called computer-readable media. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared (IR), radio and microwave , then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies, such as infrared, radio and microwave, are included in the media definition. Floppy and disc, as used here, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc and Blu-ray® disc on which discs generally reproduce data magnetically, while discs reproduce
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    45/46 data optically with lasers. Thus, in some respects, computer-readable media may comprise non-transitory computer-readable media (for example, tangible media). In addition, for other aspects, computer-readable media may comprise computer-readable transient media (for example, a signal). The combinations of the items above must also be included in the scope of computer-readable media.
    [0101] Thus, certain aspects may comprise a computer program product to perform the operations presented here. For example, such a computer program product may comprise a computer-readable medium with stored (and / or encoded) instructions, the instructions being executable by one or more processors to perform the operations described herein.
    [0102] In addition, it should be appreciated that the modules and / or other appropriate means for carrying out the methods and techniques described herein can be downloaded and / or otherwise obtained by a user terminal and / or base station, as applicable . For example, such a device can be coupled to a server to facilitate the transfer of means to carry out the methods described herein. Alternatively, various methods described herein can be provided via storage media (for example, RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.), such as a user terminal and / base station can obtain the various methods when coupling or provide the storage media to the
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    46/46 device. In addition, any other technique suitable for providing the methods and techniques described herein for a device can be used.
    [0103] It should be understood that the claims are not limited to the precise configuration and components illustrated above. Various modifications, alterations and variations can be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.
    权利要求:
    Claims (5)
    [1]
    1. Method for wireless communications, comprising:
    determining a portion of a shared spectrum for at least one to send or receive a transmission; and transmitting a plurality of channel reserve signals associated with a plurality of beams to reserve the portion of the shared spectrum.
    [2]
    A method according to claim 1, wherein the plurality of reserve channel reserve signals, cadet one, the same portion of the shared spectrum.
    3. Method, according with the rebirth 11 c a. ç 8 o 1, in that the plurality of signs in reservation c ΐθ C3.na. 1. are transmitted sequentially on the temp c> 4. Method, according with the rebirth bidding 1, in that the plurality cte signs in reservation c ιθ reed.are transmitted to a plurality ; in cells 7 .i. z .1 π laughs P ara reserve the portion of the spectrum c 'o mp ãi shattered leave Ο [θ one
    set of the plurality of neighboring cells.
    A method according to claim 1, wherein a first channel reserve signal with a plurality of channel reserve signals is transmitted using a first beam and a second channel reserve signal from the plurality of channel reserve signals is transmitted using a second beam wider than the first beam.
    A method according to claim 5, wherein the second beam comprises an omnidirectional beam.
    A method according to claim 1, wherein one or more of the plurality of reserve signs
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    2/5 channels are transmitted using different beams.
    8. The method of claim 7, wherein the different bundles comprise bundles with a similar direction with respect to each other.
    A method according to claim 7, wherein the different bundles comprise bundles with a different direction in relation to each other.
    A method according to claim 1, wherein one or more of the plurality of channel reserve signals are transmitted to a
    [3]
    3u plus c and 1 u 1 a. s v r z, i η n a s known using one or more known beam directions.
    Apparatus for communications without comprises:
    means for determining a portion of a shared spectrum for at least one to send or receive a transmission; and means for transmitting a plurality of channel reservation signals associated with a plurality of beams to reserve the portion of the shared spectrum.
    Apparatus according to claim 11, wherein the plurality of channel reserve signals each reserve the same portion of the shared spectrum.
    Apparatus according to claim 11, wherein the plurality of channel reserve signals are transmitted sequentially over time.
    Apparatus according to claim 11, wherein the plurality of channel reserve signals is transmitted to a plurality of neighboring cells to reserve the portion of the shared spectrum from a
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    3/5 set of the plurality of neighboring cells.
    Apparatus according to claim 11, wherein a first channel reserve signal of the plurality of channel reserve signals is transmitted using a first beam and a second channel reserve signal of the plurality of channel reserve signals is transmitted using a second beam wider than the first beam.
    An apparatus according to claim 15, wherein the second beam comprises an omnidirectional beam.
    Apparatus according to claim 11, wherein one or more of the plurality of channel reserve signals are transmitted using different beams.
    Apparatus according to claim 17 in. that the different bundles comprise bundles with a similar direction in relation to each other.
    19. Apparatus according to claim 17, wherein the different bundles comprise bundles with a different direction in. relation to each other.
    Apparatus according to claim 11, wherein one or more of the plurality of channel reserve signals are transmitted to one or more known neighboring cells using one or more beam directions C Ο Π Γι Θ C .i Q ci S ·
    21. Wireless communication device, comprising:
    at least one processor coupled to a memory and configured to determine a portion of a shared spectrum for at least one to send or receive a transmission; and a transmitter configured to transmit a plurality of channel reserve signals associated with
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    [4]
    4/5 a plurality of beams to reserve the portion of the shared spectrum.
    Apparatus according to claim 21, wherein a first channel reserve signal of the plurality of channel reserve signals is transmitted using a first beam and a second channel reserve signal of the plurality of channel reserve signals is transmitted using a second beam wider than the first beam.
    An apparatus according to claim 22, wherein the second bundle comprises one. omnidirectional beam.
    Apparatus according to claim 21, wherein one or more of the plurality of channel reserve signals are transmitted using different beams.
    25. Apparatus according to claim 24, characterized by the fact that the different bundles comprise bundles with similar direction in relation to each other.
    26. Computer-readable medium containing computer executable code stored for wireless communications, comprising:
    code to determine a portion of a shared spectrum for at least one to send or receive a t r a n s m i s s ã. The; and code for transmitting a plurality of channel reservation signals associated with a plurality of beams to reserve the portion of the shared spectrum.
    27. A computer-readable medium according to claim 26, wherein a first channel reserve signal of the plurality of channel reserve signals is transmitted using a first beam and a second
    Petition 870190033484, of 4/8/2019, p. 55/69
    [5]
    Channel reserve of the plurality of channel reserve signals is transmitted using a second beam wider than the first beam.
    28. A computer-readable medium according to claim 27, wherein the second beam comprises a f and i x and the mn i d i r and c i o n a 1.
    29. Computer-readable medium according to claim 26, wherein one or more of the plurality of channel reserve signals are transmitted using beams d 11 and r and n t θ s.
    30. Computer-readable medium according to claim 29, characterized by the fact that the different bundles comprise bundles with similar direction in relation to one. to the other.
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    同族专利:
    公开号 | 公开日
    WO2018071559A1|2018-04-19|
    EP3527034B1|2021-06-02|
    US20180103461A1|2018-04-12|
    CN109804700A|2019-05-24|
    JP2019537324A|2019-12-19|
    KR20190065278A|2019-06-11|
    EP3527034A1|2019-08-21|
    US10425945B2|2019-09-24|
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    法律状态:
    2021-10-05| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    US201662406602P| true| 2016-10-11|2016-10-11|
    US15/728,945|US10425945B2|2016-10-11|2017-10-10|Multi-stage channel reservation signal for directional transmission and reception|
    PCT/US2017/056168|WO2018071559A1|2016-10-11|2017-10-11|Multi-stage channel reservation signal for directional transmission and reception|
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