methods and systems for allocating resources on demand to determine the location of a mobile device

专利摘要:
The techniques described here are aimed at increasing the amount of information related to the location spread by wireless nodes. In one embodiment, a user device (UE) sends a request to a wireless node for the broadcast of an increased amount of location-related information for a type of wireless access and the wireless node broadcasts the increased amount of related information location using the type of wireless access. The wireless node can transfer the request to other wireless nodes that can similarly broadcast the increased amount of location-related information using the type of wireless access. The UE can receive the increased amount of location-related information using the type of wireless access and can then obtain location information such as a location estimate for the UE. In some embodiments, the increased amount of location-related information may comprise a position reference signal or location assistance data.
公开号:BR112020001623A2
申请号:R112020001623-3
申请日:2018-05-23
公开日:2020-07-21
发明作者:Stephen William Edge；Sven Fischer；Rayman Pon
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[0001] [0001] Obtaining the location of a mobile device that is accessing a wireless network can be useful for many applications including, for example, emergency calls, personal browsing, asset tracking, locating a friend or family member, etc. . However, the location of a mobile device typically requires the use of resources by a mobile device and / or a network for the purpose of transmitting uplink or downlink signals that can be measured by another device, transport assistance data that can be used by a mobile device to obtain measurements and / or to determine a location, and to perform processing and communication. The amount of resource usage, particularly on a network side, can increase substantially when many mobile devices need to be located over a period of time, for example, hundreds, thousands or millions of mobile devices that may need to be located hourly or daily over a large wireless network. It may therefore be advantageous to use methods that reduce the amount of resource usage by a network and / or a mobile device to achieve a preferred level of location support. summary
[0002] [0002] In some variations, an exemplary method is provided on the first wireless node to support the location of a user equipment (UE). The method includes receiving a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node, and spreading the increased amount of location-related information using the type of wireless access and based on the first request.
[0003] [0003] The modalities of the method may include at least some of the characteristics described in this description, including one or more of the following characteristics. The type of wireless access can be, for example, Fifth Generation (5G), New Radio (NR), or Long-term Evolution (LTE). Location-related information may include a Positioning Reference Signal (PRS). The increased amount of location-related information can include one or more of, for example, an increased PRS bandwidth, an increased frequency of PRS positioning occasions, an increased duration for a PRS positioning occasion, a transmission of PRS using an uplink carrier frequency, or combinations thereof. The method may include sending a second request to the transmission mutator for a second wireless node for the type of wireless access, such that the transmission mutator can be based on preventing radio interference with the spread of the increased amount location-related information. Location-related information may include location assistance data. Location assistance data may include, for example, assistance data for Observed Arrival Time Differences (OTDOA), assistance data for
[0004] [0004] In some variations, a wireless node is provided to support the location of user equipment (UE). The wireless node includes one or more processors, and a transceiver coupled to one or more processors. The transceiver is configured to receive a first request to transmit an increased amount of location-related information, with the transmission being based on a type of wireless access to the wireless node and broadcasting the increased amount of location-related information using the type of wireless access and based on the first request.
[0005] [0005] In some variations, a device associated with a first wireless node is provided to support the location of user equipment (UE). The apparatus includes means for receiving a first request for transmission of an increased amount of information related to location, with the broadcast being based on a type of wireless access to the first wireless node, and means for broadcasting the increased amount of related information location using the type of wireless access and based on the first request.
[0006] [0006] In some variations, a non-transitory computer-readable media, associated with a first wireless node, is provided to support the location of user equipment (UE), which is programmed with instructions, executable on a processor, for receive a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node and broadcast of the increased amount of location-related information using the type of wireless access based on the first request.
[0007] [0007] In some additional variations, another method for supporting location on user equipment (UE) is provided. The other method includes sending a first wireless node a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node, receiving the increased amount of location-related information broadcast by the first wireless node, with receipt being based on the type of wireless access, and obtaining location information for the UE based, at least in part, on the increased amount of location-related information.
[0008] [0008] In some additional variations, a mobile wireless device is provided that includes one or more processors, and a transceiver coupled with one or more processors. The transceiver is configured to send a first wireless node a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node, to receive the increased amount of information related to the location broadcast by the first wireless node, with the increased amount received being based on the type of wireless access, and obtaining location information for the UE based, at least in part, on the increased amount of location-related information .
[0009] [0009] In some variations, an additional device is provided to support location on user equipment (UE). The apparatus includes means for sending a first wireless node with a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node, means for receiving the increased amount of information related to the location broadcast by the first wireless node, with the increased amount received being based on the type of wireless access, and means to obtain location information for the UE based, at least in part, on the increased amount of location-related information.
[00010] [00010] In some variations, a non-transitory computer-readable media is provided, for location support on a user equipment (UE), which is programmed with instructions, executable on a processor, to send to a first wireless node a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node, to receive the increased amount of location-related information broadcast by the first wireless node, with the increased amount received being based on the type of wireless access, and obtaining location information for the UE based, at least in part, on the increased amount of location-related information.
[00011] [00011] Modes of the wireless node, wireless mobile device, user equipment, device, non-transitional computer readable media, and the additional method may include at least some of the features described in this description, including at least some of the features described above in relation to the first method.
[00012] [00012] Other and other objectives, characteristics, aspects and advantages of the present invention will be better understood with the following detailed description of the attached drawings. Brief description of the drawings
[00013] [00013] Figure 1A is a diagram of an exemplary communication system that can use a network to determine a position for a mobile device, according to a modality.
[00014] [00014] Figure 1B is a diagram of a zoning technique for increasing PRS transmission over a wireless network.
[00015] [00015] Figure 2 is a signaling flowchart that shows messages sent between components of a communication network during a localization session according to the techniques and methods described here.
[00016] [00016] Figure 3 is a signaling flowchart that illustrates messages communicated between various components of a communication system to allow the allocation of demand resources according to the techniques and methods described here.
[00017] [00017] Figure 4 is a diagram of a structure of an exemplary LTE subframe sequence with occasions for PRS positioning.
[00018] [00018] Figure 5 is a diagram that illustrates additional aspects of PRS transmission to a cell supported by a wireless node.
[00019] [00019] Figure 6 is a flow chart of an exemplary procedure, usually performed on a network node, to support the location of a mobile device according to the techniques and methods described here.
[00020] [00020] Figure 7 is a flow chart of an exemplary procedure, usually performed on a mobile device, to support the location of the mobile device according to the techniques and methods described here.
[00021] [00021] Figure 8 is a schematic diagram of an exemplary wireless node (such as a base station, access point, or server).
[00022] [00022] Figure 9 is a schematic diagram of a mobile device.
[00023] [00023] Similar reference symbols in the various drawings indicate similar elements, according to certain exemplary implementations. In addition, multiple instances of an element can be indicated by following a first number for the element with a letter or a hyphen and a second number. For example, multiple cases of an element 110 can be indicated as 110-1, 110-2, 110-3, etc., or as 110a, 110b, 110c etc. When referring to that element using only the first number, any instance of the element must be understood (for example, element 110 in the previous example refers to elements 110-1, 110-2 and 110-3 or elements 110a, 110b and 110c).
[00024] [00024] Obtaining the location of a mobile device that is accessing a wireless network can be useful for many applications including, for example, emergency calls, personal navigation, asset tracking, location of a friend or family member, etc. . However, the location of a mobile device typically requires the use of resources by a mobile device and / or a network for the purpose of transmitting uplink (UL) or downlink (DL) signals that can be measured by another device, transport of assistance data for a mobile device that can be used to take measurements and / or determine a location, and perform processing and communication. The amount of resource usage, particularly on a network side, can increase substantially when many mobile devices need to be located over a period of time, for example, hundreds, thousands or millions of mobile devices that may need to be located hourly or daily over a large wireless network.
[00025] [00025] As an example of resource utilization by a wireless network, base stations in a wireless network can transmit a positioning reference signal (PRS) continuously in each cell to support, for example, determining the location of time arrival (OTDOA) observed (for example, for LTE Access or 5G) that can consume significant operator bandwidth. For example, if used only to locate emergency calls, the PRS of any cell can be measured only for a small proportion of transmission time (for example 1% or less) if emergency calls occur infrequently in or near to any cell. Even when used for other applications (for example, location of "Internet of Things" devices), transmission of PRS may not be necessary for location for a significant proportion of time. However, reducing the amount of PRS transmission (for example, PRS bandwidth or periodicity) to conserve network resources can result in greater location accuracy and / or higher latency when the location of a mobile device is required .
[00026] [00026] A problem similar to that described for PRS transmission may apply to the transmission of location assistance data by a base station in a cell to assist user equipment (UE) to obtain location-related measurements and / or to determine location of such measurements. In this case, the operator's bandwidth can be consumed by the broadcast of the assistance data, but the broadcast can only be received by the UEs for some fraction of the broadcast time. In this case, reducing the frequency of assistance data transmission to reduce resource use can lead to increased latency in the acquisition of assistance data by a UE which can lead to a greater delay in obtaining a location for a UE or a inability to locate a UE when the delay in obtaining a location exceeds a maximum response time requirement (for example, such as 30 seconds in the case of an emergency call location).
[00027] [00027] Systems, devices, methods, means and other implementations for allocating resources on demand for 4G, 5G and / or other types of communication technologies are described here.
[00028] [00028] While transmitting a PRS location to support mobile devices is described here, transmitting other types of signals such as a cell specific reference signal (CRS) or Tracking Reference Signal (TRS) can be used instead of some wireless technologies (for example, such as 5G NR). Consequently, the methods exemplified here to support the increased allocation of resources for the transmission of PRS may also be applicable to the transmission of other signals used for positioning such as a CRS or TRS.
[00029] [00029] Figure 1A shows a diagram of a communication system 100, according to a modality. Communication system 100 can be configured to implement on-demand resource allocation based, for example, on requests (for example, Radio Resource Control (RRC) requests) from individual UEs, to one or more nodes wireless for an increased amount or capacity of location-related information (for example, PRS, service data, etc.). The receiving wireless node can also generate and communicate, based on the request received, subsequent requests to other nodes for increased allocation of resource demand related to location and information.
[00030] [00030] It should be noted that Figure 1 provides only a generalized illustration of various components, any of which can be used as appropriate, and each of which can be duplicated or omitted as needed. Specifically, although only one UE 105 is illustrated, it will be understood that many UEs (for example, hundreds, thousands, millions, etc.) can use communication system 100. Similarly, communication system 100 may include a larger number (or SVs 190, gNBs 110, ng-eNBs 114, AMFs 115, external customers 130 and / or other components. The illustrated connections that link the various components in the communication system 100 include data and signaling connections that may include additional components (intermediate), direct or indirect physical and / or wireless connections and / or additional networks. In addition, components can be rearranged, combined, separated, replaced and / or omitted, depending on the desired functionality.
[00031] [00031] Although Figure 1 illustrates a 5G based network, similar network implementations and configurations can be used for other communication technologies, such as 3G, Long Term Evolution (LTE), etc. the implementations described here can be used to configure, in response to the receipt of a request, an increased amount of location-related information or resources associated with communication broadcast from wireless nodes (for example, broadcast of assistance data), transmission of PRS signals or some other function related to the location of wireless nodes.
[00032] [00032] The UE 105 may comprise and / or be referred to as a device, a mobile device, a wireless device, a mobile terminal, a terminal, a mobile station (MS), a terminal enabled for the Secure User Location ( SUPL), or by some other name. In addition, the UE 105 can correspond to a cell phone, smart phone, laptop, tablet, tracking device, navigation device, Internet internet device, or some other portable or mobile device. Typically, although not necessarily, the UE 105 can support wireless communication using one or more Radio Access Technologies (RATs) such as the use of Global System For Mobile Communication (GSM), Code Division Multiple Access (CDMA), Broadband CDMA (WCDMA), LTE, High Rate Packet Data (HRPD), IEEE
[00033] [00033] UE 105 can include a single entity or can include multiple entities such as in a personal area network where a user can employ Audio, video and / or I / O data devices and / or body sensors and a modem wireless or separate wireless. An UE 105 location estimate can be referred to as location, location estimate, location fixation, fixation, position, position estimate or fixed position, and can be geographic, thus providing location coordinates for UE 105 (e.g. latitude and longitude) that may or may not include an altitude component (for example, height above sea level, height above or depth below ground level, floor level or hold level). Alternatively, a location of the UE 105 can be expressed as a civic location (for example, as a postal address or the designation of some small point or area in a building such as a particular room or floor). The location of the UE 105 can also be expressed as an area or volume (defined either geographically or in civic form) within which the UE 105 is expected to be located with some level of probability or confidence (for example, 67%, 95% , etc.) or by reference to a point, area, or volume indicated on a map, floor plan, or construction plan. In the description contained herein, the use of the term location may comprise any of these variants, unless otherwise indicated. When computing the location of a UE, it is common to solve the local x, y and possibly z coordinates and then, if necessary, convert the local coordinates to absolute values (for example, for latitude, longitude and altitude above or below the average sea level ).
[00034] [00034] The base stations (BSs) on NG-RAN 135 shown in Figure 1A comprise NR NodeNBs, also referred to as gNBs, 110-1, 110-2 and 110-3 (collectively and generically referred to here as 110 gNBs). Pairs of 110 gNBs on the NG-RAN 135 can be connected to each other - for example, directly as shown in Figure 1 or indirectly via other gNBs 110. Access to the 5G network is provided to the UE 105 via wireless communication between the UE 105 and one or more of the gNBs 110, which can provide wireless communications access to the 5 GC 140 on behalf of the UE 105 using the 5G NR 5G NR radio access can also be referred to as NR radio access or radio access 5G. In Figure 1 A, it is assumed that the service gNB for O UE 105 is gNB 110-1, although other gNBs (for example gNB 110-2 and / or gNB 110-3) can act as a gNB Serving If the UE 105 move to another location or can act as a secondary gNB to provide the entire bandwidth and bandwidth to the UE 105.
[00035] [00035] The base stations (BSs) on the NG-RAN 135 shown in figure A may also or, instead, include a next generation of Evolved B node, also referred to as an ng-eNB, 114. Ng-eNB 114 it can be connected to one or more gNBs 110 in NG-RAN 135, for example, directly or indirectly through other gNBs 110 and / or other Ng-eNBs. An eNB-eNB 114 can provide LTE wireless access and / or LTE evolved LTE wireless access (eLTE) for the UE
[00036] [00036] As will be discussed in greater detail below, in some modalities, gNBs 110 and / or ng-eNB 114 (alone or in combination with other modules / units of communication system 100) can be configured in response to receiving a request for a UE 105 for an increased amount of location-related information (eg PRS and / or assistance data), to transmit transmissions containing location-related information with an increased amount of resources. As noted, while Figure 1A represents nodes configured to communicate according to 5G NR and LTE communication protocols for an NG-RAN 135, nodes configured to communicate according to other communication protocols can be used, such as, for example, example, an LTE protocol for an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) or IEEE 802.2.11x protocol for a WLAN. For example, in an evolved 4G Package System (EPS) providing LTE wireless access For the UE 105, an RAN may comprise an E-UTRAN, which may comprise base stations comprising Evolved Bs (eNBs)
[00037] [00037] The gNBs 110 and ng-eNB 114 can communicate with a Mobility and Mobility Management Function (AMF) 115, which, for positioning functionality, communicates with a Location Management (LMF) function 120 The AMF 115 can support mobility of the UE 105, including cell change and handover and can participate in supporting a signaling connection to the UE 105 and possibly data and voice carriers for the UE 105. The LMF 120 can support the positioning of the UE 105 when UE accesses NG-RAN 135 and can support position procedures / methods such as Assisted GNSS (A-GNSS), Observed Arrival Time Difference (OTDOA), Real Time Correction (RTK), Accurate point positioning (PPP), Differential GNSS (DGNSS), Improved Cell ID (ECID), Arrival angle (AOA), Departure angle (AOD) and / or other positioning procedures. The LMF 120 can also process location service requests for the UE 105, for example, received from the AMF 115 or GMLC 125. The LMF 120 can be connected to AMF 115 and / or the GMLC 125. The LMF 120 can be referred to by other names such as a location manager (LM), location function (LF), commercial LMF (CLMF) or value
[00038] [00038] The Mobile Door Location Center (GMLC) 125 can support a location request for UE 105 received from an external client 130 and can forward that location request to AMF 115 for routing through AMF 115 to the LMF 120 or can forward the location request directly to LMF 120. An LMF 120 location response (for example, containing the location estimate for UE 105) can similarly be returned to GMLC 125 either directly or via AMF 115 , and GMCL 125 can return the location response (containing the location estimate) to external client 130. GMLC 125 is shown connected to both AMF 115 and LMF 120 in figure a although only one of these connections can be supported by 5GC 140 in some implementations.
[00039] [00039] As also illustrated in Figure a, the LMF 120 can communicate with gNBs 110 and / or ng-eNB 114 using a New Radio Position Protocol A (which can be referred to as NPPa or NRPPa), which can be defined in Technical Specification (TS) 3 GPP 38,455. NRPPa can be equal to, or an extension of the LTE A positioning protocol (LPPa) defined in 3 GPP TS 36. 455, with NRPPa messages being transferred between gNB 110 and LMF 120, and / or between an ng- eNB 114 and LMF 120, through AMF 115. As also illustrated in Figure 1A, LMF 120 and UE 105 can communicate using an LTE positioning protocol (LPP), which can be defined in 3 GPP TS 36.355. LMF 120 and UE 105 can also instead communicate using a new radio positioning protocol (which can be referred to as NPP or NRPP), which can be the same or similar to, or an LPP extension.
[00040] [00040] With an EU-assisted position method, the UE 105 can obtain location measurements and send the measurements to a location server (eg LMF 120) for computing a location estimate to the UE 105. For example , location measurements can include one or more of an indication of received signal strength (RSSI), round-trip signal propagation time (RTT), reference signal time difference (RSTD), received signal strength reference (RSRP), received quality of reference signal (RSRQ), AOA, and / or AOD for gNBs 110, ng-eNB 114 and / or a WLAN access point (AP). Location measurements can also, instead, include measurements of GNSS pseudo range, code phase and / or carrier phase for SVs 190. With an EU-based position method, the UE 105 can obtain location measurements ( for example, which can be the same or similar to location measurements for an EU-assisted position method) and can compute a location of UE 105 (for example with the assistance of backup data received from a location server such as LMF 120 or broadcast by gNBs 110, ng-eNB 114 or other base stations or APs). With a network-based position method, one or more base stations (for example, gNBs 110 and / or ng-eNB 114) Or APs can obtain location measurements (for example measurements from RSSI, RTT, RSRP, RSRQ, AO a or Arrival Time (TOA) for signals transmitted by the UE 105, and / or can receive measurements obtained by the UE 105, and can send the measurements to a location server (e.g.
[00041] [00041] The information provided by gNBs 110 and / or from MN-eNB 114 to LMF 120 using NRPPa can include timing and configuration information for PRS Transmission and location coordinates. The LMF 120 can then provide some or all of this information to the UE 105 as service data in an LPP and / or NPP Message via NG-RAN 135 and 5 GC 140.
[00042] [00042] An LPP or NPP message sent from the LMF 120 to the UE 105 can instruct the UE 105 to do any one of a variety of things, depending on the desired functionality. For example, the LPP or NPP message could contain an instruction for the UE 105 to obtain measurements for GNSS (or a GNSS), WLAN and / or OTDOA (or some other position method). In the case of OTDOA, the LPP or NPP Message can instruct the UE 105 to obtain one or more measurements (for example RSTD Measurements) of PRS Signals transmitted within the particular cells supported by the particular 110 gNBs and / or o-eNB 114 (or supported by some other type of base station such as an eNB or WiFi AP). A RSTD measurement can comprise the difference in the arrival times at UE 105 of a signal (for example, a PRS signal) transmitted or broadcast by one gNB 110 and a similar signal transmitted by another gNB 1102. The UE 105 can send the measurements back to The LMF 120 in an LPP Or NPP Message (for example within a 5G NAS message) via the gNB 110-1 server (or to the eNB server 114) and The AMF 115.
[00043] [00043] As noted, while communication system 100 is described in relation to 5G technology, communication system 100 can be implemented to support other communication technologies, such as GSM, WCDMA, LTE, etc., which are used to support and interact with mobile devices such as the UE 105 (for example, to implement voice, data, positioning and other features). In some such modalities, the 5 GC 140 can be configured to control different overhead interfaces.
[00044] [00044] To support certain positioning methods such as OTDOA and transmission or PRS or other signals used in the positioning of an UE 105, base stations can be synchronized. In a synchronized network, the transmission timing of gNBs 110 can be synchronized so that each gNB 110 has the same transmission timing as each other gNB 110 at a high level of accuracy, for example, 50 nanoseconds or less. Alternatively, gNBs 110 can be synchronized to a radio frame or subframe level such that each gNB 110 transmits a radio frame or subframe for the same length of time as each other gNB 110 (for example, such that each gNB 110 starts and ends by transmitting a radio frame or subframe at almost exactly the same times as each other gNB 110), but it does not necessarily maintain the same counters or numbering for radio frames or subframes. For example, when a gNB 110 is transmitting a subframe or radio frame with a counter or zero number (which may be the first radio frame or subframe in some periodically repeated sequence of radio frames or subframes), another gNB 110 may be transmitting a radio board or subframe with a different number or counter, such as one, ten, hundred, etc.
[00045] [00045] The timing of the transmission timing of ng-eNBs 114 on NG-RAN 135 can be supported in a similar way to the synchronization of gNBs 110, although since ng-eNBs 114 can typically use a different frequency for gNBs 110 (for avoid interference), an eNB-eNB 114 may not always be synchronized to gNBs 1102. Synchronization of gNBs 110 and ng-eNBs 114 can be achieved using either a GPS Receiver or a GNSS Receiver on each gNB 110 and ng-eNB 114 or by other means such as using the IEEE 1588 Precision Time Protocol.
[00046] [00046] In the case of PRS demand programming, base stations (BSs), such as gNBs 110 and ng-eNB 114 in the communication system 100 or eNBs in an EPS, could transmit a PRS using a low bandwidth and Low PRS Duration on a continuous background basis (for example, using 1 or 2 subframes for placement and 1.4 MHz bandwidth for eNBs) and temporarily switching to high bandwidth (for example, 20 MHz) and / or high duration (eg 6 subframes per positioning occasion) when requested by UE 105. To support the fast switching between low and high PRS resource allocation, an EU 105 Request for allocation of High PRS could be sent using a Radio Resource Control Protocol (RRC) to a BS server for the UE 105 (eg, a gNB 110 server or ng-eNB 114 for the UE 105 access to the ng-RAN 135 or a eNB server for UE 105 access to e-UTRAN). The serving BS can be configured to transfer or communicate the request to Neighboring BSs. The request for allocation of high PRS resources could be combined with a request by UE 105 for measurement intervals in the case that PRS is transmitted to some cells using a different frequency and / or different RAT for those to the serving cell for O UE 105. A location server (for example, an e-SMLC for EPS or LMF 120 for 5GC 140) could then provide the UE 105 with the low PRS background Priority resource configuration for the reference cells and neighbors for the positioning of OTDOA and could also indicate whether switching to the allocation of high PRS resources was supported. In the event that switching to high PRS resource allocation was supported, the location server could indicate the types of supported increased PRS resource allocation such as increased PRS bandwidth, increased PRS subframes at the time of positioning and / or Use of UL frequency for PRS transmission. For each supported type of increased PRS resource allocation, the location server could also indicate the available amounts of increased PRS resource allocation, such as available PRS bandwidth values (or maximum), Available (or maximum) numbers of PRS subframes when positioning and / or one or more PRS Configurations available on a UL Carrier frequency.
[00047] [00047] When switching to high PRS resource allocation is supported, the UE 105 can send an RRC Protocol Request to the serving BS (for example, eNB server for e-UTRAN access or g B 110 or ng-eNB 114 server for Access NG-RAN 135), and include, for example, PRS Frequencies, the UE 105 is able to measure, the Maximum allocation of PRS resources to the UE 105 can measure
[00048] [00048] If there was no RRC confirmation from the serving BS, the UE 105 could assume that the increased PSN transmission for the elevated PSN Resource allocation will be supported. Alternatively, the UE 105 can measure both a high and low PRS resource allocation and determine which PRS allocation was used by the network from the accuracy of the resulting RSTD measurements. The low PRS resource allocation may correspond to the PRS resource allocation indicated by the location server (in a prior request for OTDOA RSTD measurements), while the high PRS resource allocation may correspond to a high PRS resource allocation indicated by the server as being supported or for a high PRS resource allocation indicated by the UE 105 for the serving BS As being supported by the UE 105. The UE 105 can then assume that the low PRS resource allocation was used, and could then use only RSTD measurements for low PRS resource allocation, when RSTD measurements for high PRS resource allocation were found to be less accurate than for low PRS resource allocation or could not be obtained by UE 105. Similarly , UE 105 could assume that High PRS Resource Allocation was used, and the use of only RSTD measurements for high PRS resource allocation, when RSTD measurements for low PRS resource allocation was found to be less accurate than for high resource allocation or could not be obtained by UE 105. Optionally, after RSTD measurements have been obtained, UE 105 could send another RRC Request to the serving BS to warn that the increased PRS resource allocation is no longer needed by the UE 105.
[00049] [00049] To support high resource allocation for Time Division Duplexing (TDD) PRS, the increased PRS Transmission can be dynamically increased by each base station (for example, g B 110 or ng-eNB 114) in one basis by partition or subframe-for example, dynamically assigning more DL subframes for PRS transmission by certain 110 gNBs and / or ng-eNBs
[00050] [00050] In some implementations, a permanent level of high resource allocation can be used for PRS transmission (for example, using increased PRS bandwidth, an increased number of PRS subframes at the time of positioning and / or carrier frequency) uplink) but only with a long periodicity (for example, for a positioning occasion every 1 to 5 minutes) that can allow a more precise location for an UE 105, but with increased latency for obtaining and providing the most accurate location for a external customer 130.
[00051] [00051] To support situations where many UEs may be sending requests for increased PRS resource allocation (or sending requests for an increase in other types of location determination resources, such as assistance data) around the same time, a server BS, referred to here as a "Node A", could send a request to a neighboring BS, referred to here as a "Node B", when an increased PRS resource allocation is required for some UE 105, and could include a time Expiry J (for example, 1 minute) for this request. The validity time, T, can be adjusted to a higher value (for example, 2 to 5 minutes) if Node A has received many requests for increased PRS resource allocation from the UEs over a short period of time. In addition, after submitting the increased PRS resource allocation request to O Node B, if Node A receives an increased PRS Resource allocation request from another UE, it may not send another request for allocation of Resource PRS PRS increased for node B if the previous expiry time T has not yet expired. When the expiry time T expires at node B, node B can switch back to the background low PRS resource allocation. Alternatively, Node B can combine the increased PRS resource allocation requests received from all neighboring BSs, as well as local requests for increased PRS resource allocation received from UEs served by the BE node to maintain a single timeout. expiration T * which expires after all the requested expiration times have expired. This technique can reduce signaling between BSs (for example, between gNBs 110 or between ng-eNBs 114) and can ensure that PRS with high resource allocation is transmitted when needed.
[00052] [00052] In an implementation where the increased PRS transmission is used to assist in locating one or more UEs in some local area of a network (for example, within a collection of neighboring cells), it may be useful to employ techniques to reduce or avoid interference caused by the transmission of increased PRS within this local area to other areas of the network. Figure 1B illustrates a technique for obtaining reduced interference using zoning.
[00053] [00053] In order to support the zoning technique shown in Figure 1B, a gNB 110-1 serving for UE 105 can determine a first set of gNBs 110 corresponding to zone 182 and can send a request for each gNB 110 in this first set to transmit Enhanced PRS as described above. GNB 110-1 in service for UE 105 can also determine a second set of gNBs 110 corresponding to zone B 184 and can send a request for each gNB 110 in this second set to effect mutations and / or to ensure that UEs served by performing during the times and in the frequency and bandwidth used by the increased PRS transmission for gNBs 110 in the 182 zone. the gNB 110-1 serving can also specify the duration (eg start time and downtime) for the increased PRS for gNBs 110 in zone A 182 and for the mutator for gNBs 110 and UEs in zone B 184.
[00054] [00054] Similar to on-demand PRS programming, a network can also (or instead of) support on-demand broadcast of System Information Blocks (SIBs) for EU-based Positioning. In this case, one or more SIBs can carry assistance data to a UE 105, which allows the UE 105 to obtain location-related measurements for one or more position methods and / or compute a location for the UE 105 using measurements for a or more position methods.
[00055] [00055] The allocation of resources on demand for SIB transmission Can apply to individual position methods, for example, where a UE 105 indicates the method of position (s) of interest to the network and the network only increases the allocation of resources for SIB transmission for this position method (or these). An UE 105 (for example, an IoT UE) can request increased resources for SIB Transmission when requested (for example, at an application level or by an e-SMLC or An LMF 120) to perform activated or periodic localization through some duration. In this case, the UE 105 can also indicate to the network (for example, to a serving BS) the expected frequency and / or the duration of the positioning. Support of on-demand broadcast of assistance data could be performed in a similar way to PRS on-demand programming, for example, with an UE 105 sending an RRC Request to a serving BS (for example a gNB 110 or ng-eNB 114) , and the server BS then sends a request to neighboring BSs to increase the frequency of the Broadcast SIB over some validity time. A UE 105 may not need to interact with a network when using the UE-based location, but may still being mobile between different cells, requesting and obtaining increased SIB transmission from neighboring cells, can reduce UE 105 signaling and battery consumption, which can be valuable for UEs.
[00056] [00056] The on-demand broadcast of assistance data and / or PRS programming on demand (or allocation on demand to other resources) can also be supported by a BS (for example, an ng-eNB 114 or gNB 110) based demand volume or demand priority. For example, a request for an UE 105 for increased resource allocation for PRS or increased resource allocation for transmission of assistance data can only be granted by a BS when many UEs in the same local area request this or when the request is associated with priority service such as an emergency call.
[00057] [00057] The implementations described here include a method for supporting the location of user equipment (UE) on a first wireless node, with the method including receiving a first request (for example, an RRC protocol request) for the dissemination of an increased amount of information related to location, with the diffusion being based on a type of wireless access to the first wireless node (for example, diffusion of LTE signals, broadcasting of 5G signals, etc.), and dissemination of the increased amount of location-related information using the type of wireless access and based on the first request. The type of wireless access can be one of, for example, new generation (5G) new radio (NR), or long term evolution (LTE). Location-related information may include a Positioning Reference Signal (PRS). In such an embodiment, the increased amount of location-related information may include, for example, an increased PRS bandwidth, an increased frequency of PRS Positioning Occasions, an increased duration for a PRS Positioning Occasion and / or an PRS transmission using an uplink carrier frequency. In some embodiments, the increased amount of location-related information may include, for example, an increased amount of location assistance data, an increased frequency of broadcast location assistance data, and / or an increased repetition of location data diffusion. location assistance.
[00058] [00058] Also described here are systems, devices, methods, means and other implementations to support location determination, including a method comprising sending (by a wireless mobile device, for example, a UE 105), to a first node without a first request to transmit an increased amount of location-related information, with the broadcast being based on a type of wireless access to the first wireless node, and to receive the increased amount of location-related information broadcast by the first node wireless, with the receipt being based on the type of wireless access. Here, too, the type of wireless access may include, for example, Fifth Generation Wireless Access (5G), Long Term Wireless Access (LTE), etc. location-related information may include a Positioning reference signal (PRS), and in such circumstances the increased amount of location-related information may include, for example, increased PRS bandwidth, increased frequency of positioning occasions of PRS, an increased duration for a PRS placement occasion and / or a PRS transmission using an uplink carrier frequency. Location-related information may also include, in some embodiments, location assistance data, such as assistance data for one or more Arrival Time Arrival procedures (OTDOA), An Assisted Global Navigation Satellite System Procedure (A-GNSS), an Assisted Global Navigation Satellite System (A-GNSS) procedure, a Real-Time Kinematics (RTK) procedure, an Accurate Point Positioning (PPP) procedure and / or differential GNSS procedure (DGNSS). The increased amount of location-related information may include, for example, an increased amount of location assistance data, an increased frequency of broadcast location assistance data and / or an increased repetition of the location assistance data diffusion.
[00059] [00059] Figure 2 shows a signaling flow 200 that illustrates various messages sent between the components of the communication system 100 shown in Figure 1A, during a locating session between UE 105 and LMF 120. While flow chart 200 is discussed , for ease of illustration, in relation to a 5G NR wireless access using gNBs 110, the signaling flows similar to Figure 2 involving ng-eNBs 114 or e Bs more exactly than gNBs 110 will be readily apparent to those with common knowledge in the technical. In addition, in some embodiments, the UE 105 itself can be configured to determine its location using, for example, backup data provided to it. In signaling flow 200, it is assumed that UE 105 and LMF 120 communicate using the LPP and / or NPP positioning protocols referred to above. Thus, messages for signaling flow 200 are referred to as LPP / NPP messages that can comprise LPP Messages (without using NPP), NPP Messages (without using LPP) or LPP Messages combined with NPP Messages (for example, where an NPP message is encapsulated within an LPP message). However, messages for other positioning protocols can also be used in other signaling flows similar to signaling flow 200.
[00060] [00060] In some modalities, a location session for UE 105 can be triggered when LMF 120 receives a location request in action 201. Depending on the scenario, the location request can come to LMF 120 of AMF 115, from GMLC 125 or UE 105 (for example, via gNB 110-1 server and AMF 115 shown in Figure A. In some implementations, LMF 120 can then query AMF 115 for information for UE 105 and AMF 115 can then send information to UE 105 to LMF 120 (not shown in the Figure) .The information may indicate that the UE has a 5G NR wireless access (for the example modalities in the Figure), and can provide the identity (ID) of a Current NR service cell for UE 105 (for example a cell supported by gNB 110-1 which may be a gNB serving for UE 105) and / or may indicate that UE 105 supports Localization using LPP / NPP. Some or all of this information may have been obtained by AMF 115 from UE 105 and / or g NB 110-1, for example, when UE 105 obtains a signaling link to AMF 115 and / or registrars with AMF 115. In some other implementations, the same or similar information may be included in a Location Request sent by AMF 115 for LMF 120 in action 201.
[00061] [00061] To initiate the localization session (for example, and based on an indication of UE support for LPP / NPP with 5G NR wireless access), the LMF 120 sends an LPP / NPP Request capability message in action 202 for AMF 115 serving UE 105 (for example, using 5G Location Services Application protocol (LCS AP)). AMF 115 may include the LPP / NPP request capabilities message within a NAS 5G transport message, in action 203, which is sent to UE 105 (for example, through gNB 110-1 serving as illustrated in figure A). UE 105 responds to AMF 115 with an LPP / NPP Delivery Capabilities Message in action 204, also sent within a 5G NAS Transport Message. AMF 115 extracts the LPP / NPP Delivery Capabilities message from the NAS 5G Transport message and relays the LPP 120 Capabilities Message (for example, using an LCS 5G AP) in action 205. Here, the Capabilities message LPP / NPP Delivery Form sent on actions 204 and 205 may indicate UE 105 Positioning capabilities with respect to LPP / NPP, for example, LPP E / or NPP position methods and LPP and / or NPP support data associated with UE 105 (for example such as A-GNSS positioning, OTDOA positioning, ECID positioning, WLAN positioning, etc.) while accessing a network of
[00062] [00062] Based on the selected position method (s) and the assistance data indicated by the UE 105 as being supported, the LMF 120 can determine assistance data for the UE 105 to support the selected position method (s). The LMF 120 can then send an RPPa information request message in action 206 to AMF 115, which can be relayed to the server node g B 110-1 by AMF 115 in action 207. The NRPPa Information Request can request related information the location for gNB 110-1, such as the location of gNB 110-1, PRS configuration parameters for gNB 110-1 and / or information regarding the spread of assistance data by gNB 110-1. The gNB 110-1 serving responds with an NRPPa Information Response message, in action 208, which can be relayed to LMF 120 through AMF 115 in action 209. The NRPPa Information Response can provide some or all of the information related to the requested location, such as PRS broadcast configuration parameters for gNB 110-1 based on a low resource allocation for PRS and can indicate whether gNB 110-1 supports a request for increased PSN resource allocation UE 105 and, if so, can include PRS transmission configuration parameters for gNB 110-1 based on a high allocation of PRS resources. Actions 206-209 can be repeated for LMF 120 to obtain location information (eg PRS configuration parameters) of other gNB 110s near UE 105, such as gNBs 110-2 and 110-3 (not shown in Figure) .
[00063] [00063] The LMF 120 then sends some or all of the assistance data received in action 209, and possibly other assistance data already known to the LMF 120 or obtained from other sources (for example, such as other gNBs 110 or a GNSS Reference Station or RTK or reference network), for the UE
[00064] [00064] The LPP / NPP supply assistance data message can be followed by an LPP / NPP request location information message, again sent from LMF 120 to AMF 115, in action 212, which is relayed to UE 105 in a NAS 5G transport message by AMF 115 in action 213. The LPP / NPP Request location information message can request one or more location measurements from the UE 105 and / or a location estimate according to, for example, the position method (s) selected by the LMF 120 based on the UE 105 Position capabilities sent to the LMF 120 in the 204 and 205 actions. positioning measurements may, for example, include Reference Signal Time Difference (RSTD) measurements for OTDOA and / or pseudo range (or code phase) measurements for a GNSS.
[00065] [00065] In action 214, UE 105 can subsequently obtain some or all of the location measurements (and other information such as a location estimate) requested in actions 212 and 213. Location measurements can be made on the basis of, at least in part, in the PRS Signals transmitted by the various cells detected by the UE 105. As discussed here, the PRS transmissions from the reference cell and neighboring cells may have been controllably increased in response to a request from the UE 105, and may be transmitted for a duration that is determined based, at least in part, on a request for an increased amount of location-related information from UE 105 and / or another UE (as will be more particularly described below).
[00066] [00066] In some modalities, at least some of the location measurements, and / or other information, obtained by UE 105 in action 214 are provided in an LPP / NPP supply location information message, which is sent from the UE 105 for AMF 115 in a NAS 5G transport message in action 215. AMF 115 extracts the LPP / NPP Provides location information message from the NAS 5G transport message, and transfers it to the LMF 120 ( for example, using AP LCS 5G) in action 216. With this information, the LMF 120 can then determine the Location of the UE (or determine the location approximation), in block 217, and provide a location response containing the determined location for the requesting entity in action 218. As noted, in some modalities, at least some of the location determination operations can be performed on UE 105.
[00067] [00067] In Figure 2, LMF 120 can request that UE 105 obtain OTDOA RSTD Measurements in actions 212 and 213, and OTDOA RSTD Measurements obtained in action 214 can be obtained by measuring PRS signals transmitted from gNBs 110 (e.g., gNBs 110-1, 110-2 and 110-3). If the assistance data provided in actions 210 and 21 is for a low PRS resource allocation and if gNBs 110 and UE 105 support a Higher PRS resource allocation, UE 105 can request the increased gNB PRS resource allocation 110-1 serving before obtaining location measurements in action 214, as described for Figure
[00068] [00068] Figure 3 shows a signaling flow 300 that illustrates the messages communicated between various components of the communication system 100 of Figure 1 a, to allow an UE 105 to request an increased amount of information related to location (also referred to as signaling) positioning support) from a base station such as a gNB 110-1 in service. Signaling exemplifies a mechanism by which a wireless mobile device (UE) can request increased resources by providing location-related information such as PRS transmission, assistance data transmission, etc. Although figure 3 shows an implementation in which the UE 105 requests an increase in the allocation of PRS resources, a similar or identical procedure can be used by the UE 105 to request an increase in the allocation of resources to other resources related to location, such as an increase in resources (for example an increased frequency) for the transmission of assistance data by gNBs 110 to one or more position methods. In addition, although signaling flow diagram 300 is discussed, for ease of illustration, in relation to 5G NR wireless access using 110 gNBs, signaling flows similar to Figure 3 involving ng-eNBs 114 or eNBs instead of gNBs 110 will be readily apparent to those of ordinary skill in the art. The sequence of actions 301-314 shown in FIG. 3, or a subset or superset of these actions, can be substituted or otherwise employed to support action 214 in signaling flow 200.
[00069] [00069] Initially (for example, before action 214 in signal flow 200), gNBs 110-1, 110-2 and 110-3 can transmit (or broadcast), in actions 301, 302 and 303, PRS with a low resource allocation. For example, PRS placement occasions may be infrequent (for example, occurring every 512 ms or more), may be short-lived (for example, 1 or 2 ms) and / or may use low bandwidth (for example 1.4 MHz).
[00070] [00070] Based on the low PRS resource allocation and indication (for example, carried to UE 105 in actions 210 and 211 in signal flow 200) that gNBs 110 are configured to support an increased quantity broadcast request of location-related information (in this case, increased PRS transmission), UE 105 sends, for example, a 5G Radio Resource Control Request (RRC) to serve gNB 110-1 in action 304, requesting an increase in allocation resources for PRS. The request may include one or more of the identities of the OTDOA reference and neighboring cells to be measured by the UE 105, the maximum allocation of PRS resources requested or supported by the UE 105 (for example, the maximum PRS bandwidth, the maximum duration of A PRS positioning occasion that can be measured by the UE 105, and / or if the UE 105 is capable of measuring PRS transmitted on an uplink carrier frequency), the PRS carrier frequencies to be measured by the UE 105, an expected duration of measurements PRS and / or a request for measurement spaces. An additional indication of the UE's capabilities to process location-related information can also be included in the RRC request transmitted in action 304. In some embodiments, the RRC Request sent in action 304 may include an indicated high or high PRS Resource allocation , for UE 105 by LMF 120 in shares 210 and 211, as being supported by gNBs 110 (for example, this high or maximum PRS resource allocation does not exceed the maximum PRS resource allocation supported by UE 105).
[00071] [00071] In actions 305 and 306, gNB 110-1 can send a request message, such as a request to change the Location resource, to gNBs 110-2 and 110-3, respectively, (and possibly to others gNBs 110 (not shown in the figure) requesting an increase in the allocation of resources for transmission of PRS. The request may include the increased PRS resource allocation to be used (for example, increased PRS bandwidth, increased duration of PRS placement occasions, a higher frequency of PRS placement occasions, and / or use From UL carrier frequency For PRS transmission), the Cell ID (s) to which this applies and / or the increased PRS resource allocation Duration. The increased PRS resource allocation can be based on the maximum PRS resource allocation requested by, or indicated as being supported by UE 105 in action 304 (for example, it can be equal to or less than the maximum PRS resource allocation requested by, or indicated as supported by UE 105). GNB 110-1 can select gNBs 110-2 and 110-3 (and other gNBs 110 not shown in the figure, and / or other base stations of different types such as ng-eNBs 114), as well as indicate particular Cell IDs for GNBs 110-2 and 110-3 based on any of: (i) the identities of the reference and neighboring cells to be Measured by UE 105, if Provided by UE 105 in action 304, (ii) cells close to UE 105 and / or close to the serving cell for UE 105 and / or (iii) the PRS carrier frequencies to be measured as indicated by the UE in action 304.
[00072] [00072] In implementations where the zoning technique described in association with Figure 1B is supported, gNB 110-1 can send a Change Location Request to One or more other gNBs 110 (not shown in the Figure) requesting the transmission transmission during PRS transmission increased by gNBs 110-1, 110-2, 110-3 (and any other gNBs 110 Supporting PRS transmission in the gNB 110-1 request). The request to mutate may indicate the increased PRS Resource allocation for which the corresponding mutator is requested (for example, increased PRS Bandwidth, increased duration of PRS placement occasions, higher frequency of placement occasions PRS, and / or Use of UL carrier frequency for PRS transmission), and may also include the cell ID (s) to which the mutator applies and / or the duration of mutation. The gNBs 110 for which the mutator is requested can be selected by gNB 110-1 based on a determination of the size of a B 184 zone as described in Figure 1B which may be necessary to prevent interference between gNBs 110 by transmitting the Increased PRS (for example, such as gNBs 110-1, 110-2, 110-3 and other gNBs 110 for zone 182 in Figure 1B) and other gNBs 110 and UEs (for example, for zone C 186 in Figure 1B) for which normal PRS transmission (without mutation or increased PRS transmission) is used.
[00073] [00073] gNB 110-1 can optionally send a confirmation (for example, a RRC Confirmation) to UE 105, in action 307, that the PRS resource allocation will be increased, and may indicate the highest PRS bandwidth (for example, it can indicate increased PRS bandwidth, increased duration of PRS placement occasions, higher frequency of PRS placement occasions, and / or whether PRS transmission using UL frequency will be used) and optionally the Cell frequencies or PRS to which this applies. In response to requests in action 304 (in the case of gNB 110-1), or in response to requests in actions 305 and 306 (in the case of gNBs 110-2 and 110-3, respectively), gNBs 110-1, 110 -2 and 110-3 can increase PRS resource allocation and transmit PRS with increased resource allocation on shares 308, 309 and 310, respectively.
[00074] [00074] UE 105 can subsequently obtain RSTD measurements in action 311 for PRS transmissions for actions 308-310. If a confirmation was sent in action 307 or if UE 105 is configured to take a confirmation even when not sent, UE 105 can obtain RSTD Measurements only for the allocation of increased PRS resources transmitted in actions 308-310. If the optional confirmation in action 307 is not sent, UE 105 may, in an alternative aspect, obtain RSTD measurements for the increased PRS resource allocation that can be transmitted in actions 308-310 and the original low PSN allocation transmitted in shares 301-303. With The alternative aspect, if the UE 105 is successful in obtaining accurate RSTD measurements for the increased PRS Resource allocation, the RSTD measurements for the lower resource allocation can be discarded. Conversely, if the UE 105 is unable to obtain RSTD measurements or accurate RSTD measurements for the increased PRS resource allocation, the UE 105 can assume that the increased PRS resource allocation was not designated by gNB 110-1 and can discard any RTSD Measurements for the Increased PRS Resource allocation, and retain only the RSTD measurements for the Low PRS Resource Allocation. In some embodiments, the UE 105 can make this determination (between low versus high PRS resource allocation) on a cell-by-cell basis, rather than for all cells, for example, if an increased PRS Resource Allocation can be supported by some but not all 110 gNBs.
[00075] [00075] In action 312, UE 105 can optionally send, for example, a RRC Location resource request to gNB 110-1 serving indicating that the increased PRS Resource allocation is no longer required. Based on this request (for example, if there are no other UEs that require increased PRS resource allocation), gNB 110-1 can optionally send, for example, a Location Change Request for gNBs 110-2 and 110-3 in shares 313 and 314, respectively, indicating that the increased allocation of PRS resources is no longer needed. GNBs 110-1, 110-2 and 110-3 can then reduce the allocation of PRS resources and resume the transmission of PRS as in actions 301, 302 and 303, respectively. The UE 105 can also be configured to then include the RSTD measurements obtained in action 311 in an LPP / NPP supply location information message that can be sent to LMF 120 via AMF 115 (for example, similar to or equal to the transmission performed in action 215 in signal flow 200).
[00076] [00076] In the event of a cell change or handover from UE 105 to a new function g B 110 following action 304 (or action 307), UE 105 can send the request in action 312 to the new gNB 110 serving, and the new gNB 110 serving can send requests in actions 313 and 314 to other gNBs 110 (for example, which may include gNBs 110-2 and 110-3) indicating that increased PRS resource allocation is no longer needed.
[00077] [00077] Figure 4 shows a structure of an exemplary LTE subframe sequence 400 with PRS positioning occasions. Although Figure 4 provides an example of a subframe sequence for LTE in association with an EPS, similar or identical subframe sequence implementations can be performed for other communication technologies / protocols, such as 5G NR. For example, the PRS transmission support by a gNB 110 or ng- eNB 114 in the communication system 100 can be similar or identical to that described for LTE in an EPS with reference to Figures 4 and 5. In Figure 4, time is represented horizontally (for example, on an X Axis) with time increased from left to right, while the frequency is represented vertically (for example, on a Y Axis) with frequency increase (or decreasing) from bottom to top. As shown in Figure 4, LTE 410 downlink and uplink Radio Frames can be 10 milliseconds (ms) each. For Downlink Frequency Division Duplexing (FDD) Mode, Radio 410 frames are organized, in the modalities illustrated, into ten 412 subframes lasting 1 ms each. Each subframe 412 comprises two partitions 414, each, for example, of 0.5 ms in duration.
[00078] [00078] In the frequency domain, the available bandwidth can be divided into evenly spaced orthogonal subcarriers 416. For example, for a cyclic prefix of normal length using, for example, 15 kHz spacing, subcarriers 416 can be grouped into a group of twelve subcarriers (12). Each cluster, comprising the 12 subcarriers 416, is called a resource block and, in the example above, the number of subcarriers in the resource block can be written as
[00079] [00079] In the communication system 100 illustrated in Figure a, a gNB 110, such as any of the gNBs 110-1, 110-2, or 110-3, or an ng-eNB 114 can transmit frames, or other sequences of Physical layer signaling, supporting PRS signals (that is, a Downlink (DL) PRS) according to frame configurations similar or identical to those shown in Figure 4 and (as described later) in Figure 5, which can be measured and used for The determination of the position of the UE (for example, UE 105). As noted, other types of wireless nodes and base stations can also be configured to transmit PRS signals configured in a manner similar to that shown in Figures 4 and 5. Since the transmission of a PRS by a wireless node or base station is targeted to all UEs within the radio range, a wireless node or base station can also be considered to transmit (or broadcast) a PRS.
[00080] [00080] A PRS, which was defined in version 3 GPP LTE and later versions, can be transmitted by wireless nodes (for example, eNBs) after the appropriate configuration (for example, by an Operations and Maintenance (O&M) server ). A PRS can be transmitted in special positioning subframes (also referred to as PRS subframes) that are grouped into positioning occasions (also referred to as PRS positioning occasions). For example, in LTE, a PRS positioning occasion can comprise an NPRS number of consecutive positioning subframes where the NPRS number can be between 1 and 160 (for example, it can include the values 1, 2, 4 and 6 as well as others values). PRS placement occasions for a cell supported by a wireless node can occur periodically at intervals, denoted by a TPRS number, millisecond (or subframe) intervals where TPRS can be 5.10, 20, 40, 80,160, 320, 640 or 1280 (or any other appropriate value). As an example, Figure 4 illustrates a periodicity of positioning occasions where NPRS 418 is equal to 4 and TPRS 420 is greater than or equal to 20. In some modalities, TPRS can be measured in terms of the number of subframes between the start of occasions consecutive positioning
[00081] [00081] Within each positioning occasion, a PRS can be transmitted with constant power. A PRS can also be transmitted with zero power (that is, mutated). Mutator, which turns off a regularly programmed PRS transmission, can be useful when the PRS signals between different cells overlap when they occur at the same or nearly the same time. In this case, the PRS signals from some cells can be mutated while the PRS signals from other cells are transmitted (for example, at constant power). Mutator can assist the acquisition of signal and Measurement of RSTD, by the UEs
[00082] [00082] To further improve the storage capacity of PRS, the positioning subframes can be low interference subframes that are transmitted without user data channels. As a result, in ideally synchronized networks, PRSs can receive interference from other PRS cells with the same PRS pattern index (that is, with the same frequency shift), but not from data transmissions. Frequency shift, in LTE, for example, is defined as a function of a PRS ID (denoted as) to a cell or Transmission Point (TP) or as a function of a Physical Cell Identifier (PCI) (denoted) how) if no PRS ID is assigned, which results in an effective frequency reuse factor of 6, as described in 3 GPP TS 36.211.
[00083] [00083] To also improve the capacity of a PRS (for example, When the PRS bandwidth is limited, such as with only 6 resource blocks corresponding to the
[00084] [00084] As discussed here, in some embodiments, OTDOA assistance data can be provided to a UE 105 by a location server (for example, LMF 120 in Figure a, an e-SMLC, etc.) for a “reference cell” and one or more “neighboring cells” or “neighboring cells” in relation to the “reference cell.” For example, assistance data can provide the center channel frequency of each cell, several PRS configuration parameters (for example, NPRS, TPRS, mutation sequence, frequency hop sequence, code sequence, PRS ID, PRS Bandwidth), global cell ID and / or other cell-related parameters applicable to OTDOA or Some Another positioning procedure.
[00085] [00085] PRS-based positioning by a UE 105 can be facilitated by indicating the serving cell to the UE 105 in the OTDOA assistance data (for example, with the reference cell indicated as the serving cell). In the case of an UE 105 with 5G R wireless access, the reference cell can be chosen by the LMF 120 as some cell with good coverage in the expected approximate location of the UE 105 (for example, as indicated by the known 5G 5G service cell for UE 105).
[00086] [00086] In some embodiments, OTDOA assistance data may also include "expected RSTD" parameters, which provide UE 105 with information about RSTD Values, UE 105 is expected to be measured at its current location within the cell reference and each neighboring cell, along with an uncertainty of the expected RSTD parameter. The expected RSTD, along with the associated uncertainty, defines a search window for the UE 105 in which the UE 105 is expected to measure the RSTD Value. OTDOA assistance information may also include PRS configuration information parameters, which allow a UE 105 to determine when a PRS placement occasion occurs on signals received from multiple neighboring cells in relation to PRS placement occasions for the reference cell, and to determine the PRS Sequence transmitted from several cells in order to measure the Signal Arrival Time (TO A) or RSTD.
[00087] [00087] Using the RSTD measurements, the known absolute or relative transmission timing of each cell, and the known position (s) of the wireless node physical transmission antennas to the reference and neighboring cells, the position of the UE 105's can be calculated (for example, By UE 105, By LMF 120, or by some other node). More particularly, the RSTD for a “k” cell with respect to a "Ref" reference cell,
[00088] [00088] Figure 5 illustrates additional aspects of PRS transmission to a cell supported by a wireless node (such as an eNB, gNB 110 or ng-eNB 114). Again, the transmission of PRS to LTE in an EPS is assumed in Figure 5 although the same or similar aspects of PRS Transmission to those shown and described in Figure 5 can apply to the 5G R support by a gNB 110, LTE support by an eNB-eNB 114 and / or other wireless technologies. Figure 5 shows how PRS positioning occasions are determined by a System Frame Number (SFN), a cell specific subframe offset (PRS) and PRS Periodicity (TPRS) 520. Typically, the specific PRS Subframe setting Cell is defined by a TRS "PRS Configuration index" included in the OTDOA assistance data. The PRS periodicity (TPRS) 520 and the cell specific Subframe offset (APRS) are defined based on the PRS ITRS Configuration index, in 3 GPP TS 36.211 entitled "Physical channels and modulation", as shown in table 1 below.
[00089] [00089] The PRS configuration is defined with reference to the System Frame number (SFN) of a cell that transmits PRS. PRS cases, for the first subframe of the NPRS downlink subframes comprising a first PRS positioning occasion, can satisfy: where nf is SFN with 0 ≤nf≤ 1023, ns is the partition number within the radio frame defined by nf with 0 ≤ ns ≤ 19, TPRS is the PRS periodicity, and PRS is the cell specific subframe offset.
[00090] [00090] As shown in Figure 5, cell 552 specific subframe shift PRSs can be defined in terms of the number of subframes transmitted from the System 0 frame number (slot number 0 ', marked as slot 550 ) for the start of the first PRS positioning stage
[00091] [00091] In some embodiments, when a UE 105 receives a PRS / PRS configuration index in the OTDOA Assist data for a particular cell, the UE 105 can determine the PRS TPRS Periodicity and PRS PRS Subframe offset using the Table 1. The UE 105 can then determine the radio frame, subframe and partition when a PRS is programmed in the cell (for example, using equation (1)). Service data for OTDOA can be determined by, for example, LMF 120 or E-SMLC and includes service data for a reference cell, and a number of neighboring cells supported by various wireless nodes (for example, eNBs , gNBs 110 or ng- eNBs 114).
[00092] [00092] Typically, the PRS occasions of all cells in a network using the same frequency are time aligned and can have a fixed known time offset in relation to other cells in the network using a different frequency. In SFN-synchronous networks, all wireless nodes (gNBs 110, ng- eNBs 114, eNBs, etc.) can be aligned both in the boundary of the structure and in the frame number of the system. Therefore, in synchronous SFN networks, all cells supported by the various wireless nodes can use the same PRS configuration index for any particular PRS transmission frequency. On the other hand, in asynchronous SFN networks, the various wireless nodes can be aligned at a frame boundary, but not the system's frame number. Thus, in asynchronous SFN networks, the PRS configuration index for each cell can be configured separately by the network, so that the PRS Occasions align over time.
[00093] [00093] A UE 105 can determine the timing of PRS occasions (for example, in an LTE network or a 5G NR network such as that in communication system 100) of the Reference and neighboring cells for OTDOA positioning, if the UE 105 can obtain the cell timing (for example, SFN or frame number) of at least one of the cells, for example, the reference cell or a serving cell (which can be performed in action 214 of figure 2, or action 311 Da figure 3). The timing of the other cells can then be derived by the UE 105 based, for example, on the assumption that the PRS occasions of different cells overlap.
[00094] [00094] As defined by 3 GPP (for example, in 3 GPP TS 36.211), for LTE Systems, the sequence of subframes used to transmit PRS (for example, for OTDOA Positioning) can be characterized and defined by a number of parameters , as previously described, comprising: (i) a reserved bandwidth block (BW); (ii) the IPRS configuration index; (iii) the NPRS duration; (iv) an optional mutation pattern; and (v) a TREP mutator sequence periodicity that can be implicitly included as part of the mutation pattern in (iv) when present. In some cases, with a reasonably low PRS duty cycle, NPRS = 1, TPRS = 160 subframes (equivalent to 160 ms), and BW = 1,4,3, 5, 10, 15 or 20 MHz. To increase the PRS work cycle, the NPRS Value can be increased to six (ie, NPRS = 6)
[00095] [00095] Increasing the allocation of resources to PRS when requested by an UE 105 (for example, as exemplified with respect to Figures 1 to -3) can be implemented for any cell using one or more of: (i) Increase Width PRS BW bandwidth, (ii) increase the number of NPRS subframes per PRS positioning time, (iii) reduce the TPRS periodicity between consecutive positioning occasions, (Iv) increase the number of separate PRS configurations supported in the cell, and (v ) a PRS transmission using an uplink carrier frequency.
[00096] [00096] Figure 6 shows a flow chart of an exemplary procedure 600, generally performed on a first wireless node, to support the location of user equipment (UE) such as UE 105 in Figures 1A -3. The first wireless node can be a network node, base station, access point or positioning-only beacon such as a gNB 110, ng-eNB 114 or eNB configured to transmit radio signals, for example, according to Protocols LTE, 5G or NR. The first wireless node can be configured to adjust the amount of resources allocated for location related information (for example, PRS signals, location assistance data provided in system information blocks (SIBs) that include information needed by UEs to access cells and / or perform positioning measurements, etc.)
[00097] [00097] Procedure 600 includes receiving in block 610 a first request for transmission of an increased amount of information related to location, where the broadcast is based on a type of wireless access to the first wireless node. Non-limiting examples of types of wireless access that can be used in the implementations described here may include Fifth Generation Wireless Access (5G), New Radio Wireless Access (NR), Long Term Evolution Wireless Access (LTE) , IEEE 802.11 wireless access, etc.
[00098] [00098] In some embodiments, the first request is received from a UE (which can be similar or equal to the UE 105 described in relation to Figures 1 to -3), as in action 304 in Figure 3. The first request can be received using a Radio Resource Control (RRC) protocol for the type of wireless access. The first request can alternatively be received from a second wireless node, as in actions 305 and 306 in Figure 3. This can occur in situations where the second wireless node is the server node (for example BS server) for the UE, and the UE sent its initial request for increased resource allocation (for dissemination of location-related information) to this second wireless node, which sends an additional request to the first wireless node. In such embodiments, the identity of the first wireless node, or the identity of a cell to the first wireless node, may have been determined by the UE (and thus specified in the request for more location-related information), or it may have determined by the second wireless node (for example, based on information regarding the identities of the neighbors of the second wireless node or based on the identities of the reference cells and neighbors to be measured by the UE that were provided in the request sent by the UE for the second wireless node).
[00099] [00099] The first wireless node can be a wireless server node (for example, gNB 110-1 in Figures 1 to 3) for the UE (for example, based on the type of wireless access). As noted, in some implementations, having received the first request for the increased amount of location-related information, procedure 600 may also include sending a second request to transmit an increased amount of location-related information to a third node without for the type of wireless access, with the second request being based on the first request. Thus, in an example, the first request can be received from the UE in block 610 and can indicate a number of cell IDs to be measured by the UE. In this example, the first wireless node can then send additional wireless nodes corresponding to these cell IDs, requests to increase the resources allocated to transmit location-related information (as illustrated, for example, in actions 305 and 306 in Figure 3 ).
[000100] [000100] With continued reference to Figure 6, procedure 600 also includes, in block 620, the dissemination of the increased amount of information related to the location using the type of wireless access and based on the first request.
[000101] [000101] In some embodiments, information related to location may comprise a Positioning Reference Signal (PRS), which may, in some embodiments, be referred to as a Tracking Reference Signal (TRS) or Cell Specific Reference Signal (CRS). In such embodiments, the increased amount of location-related information may include one or more of, for example, an increased PRS bandwidth, an increased frequency of PRS placement occasions, an increased duration for a PRS placement occasion , an increased number of separate PRS signals (or separate PRS configurations) AND / or a PRS transmission using an uplink carrier frequency. As an example of increased PRS bandwidth for LTE, an increased number of resource blocks and / or an increased number of resource elements in each resource block, which contain the PRS Signal, can be allocated by a wireless node ( for example, by the first wireless node in block 620) to transmit PRS. As an example of an increased number of separate PRS signals, a wireless node (for example, the first wireless node in block 620) can transmit additional PRS signals with different characteristics such as different carrier frequency, bandwidth, frequency shift , sequence of codes, duration, periodicity and / or mutation sequence. As an example of a PRS transmission using an uplink carrier frequency, a wireless node (for example the first wireless node in block 620) can transmit additional PRS signals using a radio frequency, bandwidth, duration and periodicity that is normally used by UEs for higher link transmission (eg with FDD). These modalities may also include sending a third request to a transmission mutator for a fourth wireless node for the type of wireless access, where the transmission mutator is based on preventing radio interference by spreading the increased amount of location-related information by the first wireless node (and / or, for example, with the spread of an increased amount of location-related information by other wireless nodes). For example, the fourth wireless node can be determined by the first wireless node as belonging to a B 804 zone, as described for Figure 1B, in which the fourth wireless node and / or UEs served by the fourth wireless node mutate of transmission corresponding to the increased PRS transmission Used by the first wireless node that can be part of a zone a, as described in Figure 1B.
[000102] [000102] Location-related information may also include, in some modalities, location assistance data. In such embodiments, location assistance data can be transmitted over a wireless node (for example, the first wireless node in block 620) using one or more System Information Blocks (SIBs). In addition, location assistance data in such modalities may include, for example, assistance data for an Arrival Time Arrival position (OTDOA) method, assistance data for a Global Navigation Satellite System position method. Assisted (A-GNSS), assist data for a Real Time Position Method (RTK), Assist data for an Accurate Point Positioning Method (PPP), and / or assist data for a GNSS Position method differential (DGNSS). In such modalities (pertaining to increasing the amount of location-related information), the increased amount may include, for example, an increased amount of location assistance data, additional types of location assistance data, an increased frequency of location assistance data. broadcast location assistance and / or an increased repetition of broadcast location assistance data.
[000103] [000103] As noted, in some embodiments, the duration of the diffusion interval for the increased amount of location-related information by one or more wireless nodes (for example, the first wireless node in block 620) can be determined based on first request in block 610 and / or requests received from other UEs and / or other wireless nodes. For example, the first order in block 610 may provide an indication of the length of time during which the spread of the increased amount of location-related information is required. Consequently, in such modalities, the dissemination of the increased amount of location-related information may include deriving, based at least in part, the first request for the increased amount of location-related information, a length of time over which the amount increased information related to location is widespread. The length of time derived by the first wireless node can be based, in part, on the number of requests for an increased amount of information related to the location that is received by the first wireless node. For example, if the first wireless node receives multiple requests from different UEs (for example, from the UEs served by the first wireless node) and / or from other wireless nodes (for example, other gNBs 110, ng-eNBs 114 or eNBs ), the derived time duration can generally be longer. Upon the expiration of the derived time duration, a wireless node (for example, the first wireless node) can be configured to stop broadcasting the increased amount of location-related information, and return information related to the broadcast location on a reduced level of resource allocation (for example, it may be a standard level for disseminating location-related information, such as PRS and / or location assistance data).
[000104] [000104] In some modalities where the first request is received From a UE in block 610, procedure 600 may further comprise the sending of a response to the UE by the first wireless node, where the response comprises a confirmation of the diffusion of the increased quantity of information related to the location by the first wireless node in block 620. The response may correspond, for example, to action 307 in Figure 3. The response may indicate the exact increase in the amount of information related to the location broadcast by the first wireless node ( and / or broadcast by other wireless nodes). The answer can allow the UE to more easily acquire or measure the increased amount of information related to the location broadcast in block 620 and / or broadcast by other wireless nodes.
[000105] [000105] In some embodiments, since the UE does not need to receive the increased amount of location-related information (for example, because the UE has completed obtaining location-related measurements based on the increased amount of location-related information) , the UE may cause a request to be transmitted to end the broadcast of the increased amount of location-related information. Consequently, in such modalities, procedure 600 may also include receiving a fourth request from the UE at the first wireless node for a termination of the broadcast of the increased amount of location-related information (for example, as in action 312 in Figure 3). In response to this fourth request, the first wireless node may terminate the broadcast of the increased amount of location-related information using the type of wireless access and may, for example, initiate the broadcast of a reduced amount of location-related information. The first wireless node can also or instead send a request to other wireless nodes to end the broadcast of the increased amount of location-related information (for example, as in actions 313 and 314 in Figure 3).
[000106] [000106] Figure 7 shows a flow chart of an exemplary procedure 700, generally performed on an UE such as UE 105 of Figures 1A -3, for determining support location. Procedure 700 includes sending in block 710 to a first wireless node (for example, a wireless server node for the UE based on the type of wireless access such as gNB 110-1) a first request for transmission of an increased amount location-related information. The broadcast can be based on (for example configured for) a type of wireless access for the first wireless node. The first type of wireless access may be a type of wireless access for the Fifth Generation (5G), new Radio (NR), Long-term Evolution (LTE) or IEEE 802.11 WiFi in some modalities. In some modalities, sending the first request may include sending the request using a Radio Resource Control (RRC) protocol for the wireless access type. As noted, in some embodiments, the first wireless node receiving the first request can be configured to generate and transmit subsequent requests (for example, in actions 305 and 306 in Figure 3), which are based on the first request, to other nodes without wire, to make these other wireless nodes transmit the increased amount of location-related information to allow greater support of positioning functionality. The additional wireless nodes to which subsequent requests can be sent may have been identified in the first request sent by the UE in block 710-for example, including in the first request the cell identities to be measured by the UE. Block 710 can correspond to action 304 in Figure 3 in some modalities.
[000107] [000107] With continued reference to Figure 7, procedure 700 also includes receiving in block 720 the increased amount of information related to the location broadcast by the first wireless node, with the receipt based on the type of wireless access. Thus, for example, the UE receives broadcast of the increased amount of location-related information from the first wireless node and optionally from additional wireless nodes, in modalities, in which the original request was used to generate and transmit additional requests from the first wireless node for those additional wireless nodes. The transmission of the increased amount of information related to the location of the first wireless node (and / or additional wireless nodes) can be received in block 720 for some length of time that may have been included by the UE in the first request sent in block 710 or it may have been derived by the first wireless node (for example based on information included in the first request). In some modalities, block 720 can correspond to action 308 and optionally actions 309 and 310 in Figure 3.
[000108] [000108] With continued reference to Figure 7, procedure 700 further includes obtaining location information in block 730 for the UE based, at least in part, on the increased amount of location-related information received in block 720. For example , when the increased amount of location-related information broadcast by the first wireless node comprises PRS Signals, the UE can obtain at least one location measurement (for example an RSTD or TOA measurement) for the first wireless node (and / or location measurements for other wireless nodes) based on measurement of the increased PRS signals. Alternatively, when the increased amount of location-related information broadcast by the first wireless node comprises location assistance data, the UE can obtain location measurements for the first wireless node, other wireless nodes and / or other sources of radio (for example, SVs. Block 730 can correspond to action 311 in Figure 3 in some modalities.
[000109] [000109] In some modalities, after sending the first request for the broadcast of the increased amount of information related to location in block 710, the UE can receive a response from the first wireless node, where the response comprises a confirmation of the broadcast of the quantity increased location-related information by the first wireless node (and possibly other wireless nodes). The answer can correspond, for example, to action 307 in Figure 3. The answer can indicate the exact increase in the amount of information related to the location broadcast by the first wireless node (and / or broadcast by other wireless nodes). The response may allow the UE to more easily receive the increased amount of location-related information in block 720 and / or to obtain location information for the UE in block 720 based on the increased level of location-related information. For example, in the case of increased PSN transmission, the UE can receive accurate configuration information for the increased PRS transmission which can more easily allow the acquisition and measurement of the increased PRS transmission in blocks 720 and 730. Similarly, in the case of diffusion increased location assistance data, the response may allow the UE to know at what additional times the increased location assistance data will be transmitted and / or what additional location assistance data will be included in the increased diffusion of location assistance data .
[000110] [000110] In some embodiments, after obtaining the location information for the UE in block 730, the UE sends a second request to the first wireless node to terminate the broadcast of the increased amount of information related to the location.
[000111] [000111] As noted, in one embodiment, information related to the location to which a request is sent in block 710 and which is received in block 720 may include positioning reference signals (PRS). In this embodiment, the increased amount of information related to the location indicated in the first request in block 710 and / or received in block 720 may include an increased PRS bandwidth, an increased frequency of PRS placement occasions, an increased duration for a Occasion of PRS positioning, an increased number of separate PRS signals (or separate PRS configurations) and / or a PRS transmission using an uplink carrier frequency.
[000112] [000112] In some embodiments, information related to location may include location assistance data.
[000113] [000113] In some embodiments, procedure 700 may further include receiving an increased amount of information related to the location broadcast by a second wireless node, where the increased amount of information related to the location received from the second wireless node is based on the first request and the type of wireless access. These modalities can arise, for example, when the first wireless node that received the first request sent in block 710 communicates a subsequent request to the second wireless node to cause the second wireless node to increase the amount of location-related information. broadcast by the second wireless node. These modalities can correspond to actions 309 and 310 in Figure 3.
[000114] [000114] Figure 8 shows a schematic diagram of an exemplary wireless node 800, such as a base station, access point, or server, which can be similar to, and be configured to have functionality similar to, any one of several nodes represented or described, for example, with reference to Figures 1 to 3 (for example, gNBs 110-1, 110-2, 110-3, a m-eNB 114, an eNB, an LMF 120, others components of the 5 GC.
[000115] [000115] The node 800 can also include other components that can be used with the modalities described here. For example, node 800 may include, in some embodiments, a processor (also referred to as a controller) 830 for managing communications with other nodes (for example, sending and receiving messages), for generating communication signals (including for generating frames of messages). communication, signals and / or messages with adjustable amounts of resources that are allocated for location-related information such as PRS transmissions and assistance data transmissions), and to provide other related functionality, including functionality to implement the various processes and methods here described. Thus, for example, processor 830, in combination with other modules / units of node 800, can be configured to receive a first request for transmission of an increased amount of information related to location, with diffusion based on a type of access without wireless node 800 and to spread the increased amount of location-related information using the type of wireless access and based on the first request.
[000116] [000116] The 830 processor can be coupled to (or can otherwise communicate with) a memory
[000117] [000117] In addition, in some embodiments, memory 840 may also include neighboring relationship controllers (for example, neighbor discovery modules) 842 for managing neighboring relationships (for example, maintaining a neighboring list 844) and providing other related functionality . For example, neighboring relations controller 842 can be configured to determine neighboring wireless nodes to which requests can be sent to increase the respective amounts of location-related information that those determined neighboring nodes must communicate with (broadcast). In some embodiments, node 800 may also include one or more sensors (not shown in the Figure) and other devices (for example, cameras).
[000118] [000118] Figure 9 shows a user equipment (UE) 900 for which various procedures and techniques described here can be used. The UE 900 can be similar or identical, in implementation and / or functionality, to any of the other UEs described herein, including the UE 105 represented in Figures 1 to 3 and the UE referred to in Figures 6 and 7. In addition, the implementation illustrated in FIG. 9 can also be used to implement, at least in part, some of the nodes and devices illustrated throughout The present description, including such nodes and devices and base stations (e.g., gNBs 110, ng-eNB 114, etc.) , location servers, and other components and devices illustrated in Figures 1 A 3 and Figure 8.
[000119] [000119] The UE 900 includes a 91 processor (or processor core) and 940 memory. As described here, the UE 900 is configured to, for example, request an increased amount of information related to the location to be provided (for example, broadcast) by a wireless server node, and / or by other wireless nodes (as determined by the UE 900 or the wireless node to which it sends the request). The UE 900 is further configured to receive and use (for example, for positioning functionality) the requested increased amount of location-related information. The UE 900 can optionally include a trusted environment operably connected to memory 940 via a public bus 901 or a private bus (not shown). The UE 900 can also include a 920 communication interface and a 921 wireless transceiver configured to send and receive 923 wireless signals (which may include LTE, NR, 5G or WiFi wireless signals) via a 922 wireless antenna via a wireless network (such as the communication system 100 in figure A). The wireless transceiver 921 is connected to bus 901 via the communication interface 920. Here, the UE 900 is illustrated as having a single wireless transceiver 921. However, the UE 900 may alternatively have multiple wireless transceivers 921 and / or multiple 922 wireless antennas to support multiple communication standards such as WiFi, CDMA, Broadband CDMA (WCDMA), Long Term Evolution (LTE), 5G, NR, Bluetooth® short range wireless communication technology, etc. .
[000120] [000120] The communication interface 920 and / or wireless transceiver 921 can support operations on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can transmit modulated signals simultaneously on multiple carriers. Each modulated signal can be a Code Division Multiple Access signal (CDMA), a Time Division Multiple Access signal (TDMA), an Orthogonal Frequency Division Multiple Access signal (OFDMA), a Multiple Access signal by Single Carrier Frequency Division (SC-FDMA), etc. Each modulated signal can be sent on a different carrier and can carry pilot, control information, overhead information, data, etc.
[000121] [000121] The UE 900 can also include a 950 user interface (for example, display, graphical user interface (GUI), touch screen, keyboard, microphone, speaker), and a Positioning system receiver satellite (SPS) 955 that receives SPS 959 signals (for example, from SPS satellites) through an SPS 958 antenna (which may be the same antenna as the 922 wireless antenna, or may be different). The PS 955 receiver can communicate with a single global navigation satellite system (GNSS) or multiple such systems. A GNSS can include, but is not limited to, Global Positioning System (GPS), Galileo, Glonass, Beidou (Compass), etc. SPS satellites Are also referred to as satellites, space vehicles (SVs), etc. the SPS 955 receiver measures SPS 959 signals and can use SPS 959 signal measurements to determine the location of UE 900. Processor 911, memory 940, Digital Signal Processor (DSP) 912 and / or specialized processor (s) ) (not shown) can also be used to Process SPS 959 signals, in whole or in part, and / or to compute (approximately or more precisely) the location of the UE 900, in conjunction with the PS 955 Receiver. Alternatively, O UE 900 can support the transfer of SPS measurements to a location server (for example, E-SMLC, an LMF, such as LMF 120 of figure a, etc.) that computes the location of the UE. Information storage of SPS 959 signals or other location signals is performed using a 940 memory or registers (not shown). Although only a 911 processor, a DSP 912 and a memory 940 are shown in Figure 9, more than one among any, a pair, or all of these components could be used by the UE
[000122] [000122] Memory 940 may include a non-transitory computer-readable storage medium (or media) that stores functions such as one or more instructions or codes. The media that can constitute memory 940 includes, but is not limited to, RAM, ROM, FLASH, disk drives, etc. in general, the functions stored by memory 940 are performed by the general purpose processor (s), such as the 911 processor, specialized processors, such as the DSP 912, etc. thus, the 940 memory is a processor-readable memory and / or a computer-readable memory that stores software (programming code, instructions, etc.) configured to make the 911 processor (s) and / or DSP (s) 912 to perform the functions described (for example, the functions previously described for the Exemplary 700 procedure in Figure 7). Alternatively, one or more functions of the UE 900 can be performed in whole or in part on hardware.
[000123] [000123] The UE 900 can estimate your current position within an associated system using various techniques, based on other communication entities within the radio range and / or information available for the UE 900. For example, the UE 900 can estimate your position using information obtained from: base stations and access points (APs) associated with one or more wireless wide area networks (WWANs), wireless local area networks (WLANs), personal area networks (Cookware) using short-range wireless communication technology such as Bluetooth® or ZIGBEE® wireless technology, etc .; Global Navigation Satellite System (GNSS) or other Satellite Positioning System (SPS) satellites; and / or map data obtained from a map server or another server (for example, an LMF, an E-SMLC or SLP). In some cases, a location server, which can be an E-SMLC, SLP, standalone Mobile Location Center (SAS), LMF, etc., can provide assistance data to the UE 900 to enable or assist the UE 900 to acquire signals (for example, signals from WWAN base stations, signals from WLAN APs, signals from cellular base stations, GNSS satellites, etc.) and make measurements related to location using these signals.
[000124] [000124] In some embodiments, the UE 900 may include a 930 camera (for example, front and / or rear face) such as, for example, complementary metal oxide (CMOS) semiconductor image sensors with appropriate lens configurations. Other imaging technologies such as charge-coupled devices (CCD) and back-illuminated CMOS can be used. The 930 camera can be configured to obtain and provide image information to assist in positioning the UE
[000125] [000125] As noted, in some modalities the UE can be configured to request and receive (for example, via wireless transceiver 921), communication signals (for example, broadcast subframes) that are controlled / configured to increase the amount location-related information. For example, the increased amount of location-related information can be obtained by increasing the PRS bandwidth (on wireless nodes that communicate with the UE), increasing the frequency and / or duration of PRS Positioning Occasions, increasing the amount of assistance data, increasing the frequency of assistance data transmission, PRS transmission using an uplink carrier frequency, etc.
[000126] [000126] Substantial variations can be made according to specific wishes. For example, custom hardware can also be used, and / or particular elements could be implemented in hardware, software (including portable software, such as applets, etc.), or both. In addition, connection to other computing devices such as network input / output devices can be employed.
[000127] [000127] The configurations can be described as a process that is represented as a flow diagram or block diagram. While each can describe operations as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of operations can be rearranged. A process can have additional steps not included in the figure. In addition, examples of the methods can be implemented by hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to perform the necessary tasks can be stored on non-transitory, computer-readable media such as a storage medium. Processors can perform the tasks described.
[000128] [000128] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly or conventionally understood. As used herein, articles "a" and "one" refer to one or more of one (. And, for at least one) of the grammatical object of the article. For example, "an element" means an element or more than one element. "About" and / or "approximately" as used here when referring to a measurable value such as a quantity, a time duration, and the like, covers variations of ± 20% or ± 10%, ± 5% or + 0, 1% from the specified value, since such variations are appropriate in the context of the systems, devices, circuits, methods and other implementations described here. "Substantially" as used here when referring to a measurable value such as a quantity, a time duration, a physical attribute (such as frequency), and the like, also covers variations of ± 20% or ± 10%, ± 5% or + 0.1% of the specified value, as well as variations are appropriate in the context of the systems, devices, circuits, methods and other implementations described here.
[000129] [000129] As used herein, including in the claims, "or" as used in a list of items prefaced by "at least one" or "one or more of indicates a disjunctive list such that, for example, a list of" at least one of A, B or C "means A or B or C or
[000130] [000130] As used here, a mobile device, user equipment (EU) or mobile station (MS) refers to a device such as a cellular device or other wireless communication device, a smart device, a desk, personal communication (PCS), personal navigation device (PND), Personal Information Manager (PIM), Personal Digital Assistant (PDA), laptop or other suitable mobile device that is capable of receiving wireless communication and / or navigation signals, such as navigation position signals. The term "mobile station" (or "mobile device", "wireless device" or "user equipment") is also intended to include devices that communicate with a personal navigation device (PND), such as by short range, infrared, cable connection, or other connection regardless of whether satellite signal reception, assistance data reception, and / or position-related processing occurs on the device or PND. Also, a "mobile station" or "user equipment" is intended to include all devices, including wireless communication devices, computers, laptops, desktop devices, etc., that are capable of communicating with a server, such as such as over the Internet, WiFi, or another network, and communicate with one or more types of nodes, regardless of whether the reception of satellite signals, the receipt of assistance data and / or the position-related processing takes place on the device, in a server or on another device or node associated with the network. Any operable combination of the above is also considered a "mobile station" or user equipment. "A mobile device or user equipment (UE) can also be referred to as a mobile terminal, a terminal, a device, a Secure User Plan Location (SET) Enabled terminal, a target device, a target, or by some another name.
[000131] [000131] In one embodiment, the independent claim of the first example may include a method for supporting the location of user equipment (UE) on a first wireless node, comprising receiving a first request for transmission of an increased amount of information related to location, the broadcast based on a type of wireless access to the first wireless node; and disseminate the increased amount of location-related information using the type of wireless access and based on the first request.
[000132] [000132] Example dependent claims may include one or more of the following characteristics. The type of wireless access is the Fifth Generation (5G), new Radio (NR) or Long-term Evolution (LTE). Location-related information comprises a Positioning Reference Signal (PRS). The increased amount of location-related information comprises an increased PRS bandwidth, an increased frequency of PRS Positioning Occasions, an increased duration for a PRS Positioning Occasion, an increased number of separate PRS Signals, a PRS transmission using an uplink carrier frequency, or some combination thereof.
[000133] [000133] In one embodiment, a second independent claim may include a wireless node to support the location of user equipment (UE), the wireless node comprising one or more processors, and a transceiver, coupled to one or more processors , configured to receive a first request for transmission of an increased amount of location-related information, broadcast based on a type of wireless access to the wireless node, and broadcast of the increased amount of location-related information using the type of access without based on the first request.
[000134] [000134] In one embodiment, the third independent claim may include an apparatus for supporting the location of user equipment (UE), the apparatus comprising means for receiving a first request for transmission of an increased amount of location-related information, to broadcast based on a type of wireless access to a first wireless node, and means for broadcasting the increased amount of location-related information using the type of wireless access and based on the first request.
[000135] [000135] In one embodiment, the fourth independent claim may include non-transitory computer-readable media, to support the location of user equipment (UE), programmed with instructions, executable on a processor, to receive a first request for transmission of an increased amount of location-related information, broadcasting based on a type of wireless access to a first wireless node, and spreading the increased amount of location-related information using the type of wireless access and based on the first request .
[000136] [000136] Although some of the techniques, processes and / or implementations presented herein may comply with all or part of one or more standards, such techniques, processes, and / or the implementations may not, in some modalities, obey part or all one or more patterns.
[000137] [000137] Although specific modalities have been described here in detail, this was done by way of example only for purposes of illustration, and is not intended to be limiting with respect to the scope of the attached claims, which follow.
In particular, it is contemplated that various substitutions, changes and modifications can be made without abandoning the spirit and scope of the invention, as defined by the claims.
Other aspects, advantages and modifications are considered to be within the scope of the following claims.
The claims presented are representative of the modalities and characteristics presented here.
Other non-amended modalities and characteristics are also contemplated.
Consequently, other modalities are within the scope of the following claims.

权利要求:
Claims (30)
[1]
1. Method for supporting location on user equipment (UE), comprising: sending to a first wireless node a first request to broadcast an increased amount of information related to location, broadcast based on a type of wireless access to the first wireless node; receive the increased amount of information related to the location broadcast by the first wireless node, the receipt based on the type of wireless access; and obtaining location information for the UE based, at least in part, on the increased amount of location-related information.
[2]
2. Method, according to claim 1, in which the type of wireless access is the Fifth Generation (5G), New Radio (NR), or Long Term Evolution (LTE).
[3]
3. Method according to claim 2, wherein the information related to the location comprises a Positioning Reference Signal (PRS).
[4]
A method according to claim 3, wherein the increased amount of location-related information comprises an increased PRS bandwidth, an increased frequency of PRS positioning occasions, an increased duration for a PRS positioning occasion, an increased number of separate PRS signals, a PRS transmission using an uplink carrier frequency, or any combination thereof.
[5]
5. Method according to claim 2, wherein the location related information comprises location assistance data.
[6]
6. Method according to claim 5, in which the location assistance data comprises assistance data for one or more of: Observed Arrival Time Difference (OTDOA), Assisted Global Navigation Satellite System (A-GNSS ), Real Time Kinematics (RTK), Precise Point Positioning (PPP), Differential GNSS (DGNSS), or any combination thereof.
[7]
Method according to claim 5, wherein the increased amount of location-related information comprises an increased amount of location assistance data, additional types of location assistance data, a higher frequency of assistance data dissemination location, an increased repetition of the diffusion of location assistance data, or any combination thereof.
[8]
8. The method of claim 1, wherein the first wireless node is a wireless server node for the UE based on the type of wireless access.
[9]
9. Method according to claim 8, in which the first request is sent using a Radio Resource Control (RRC) protocol for the type of wireless access.
[10]
A method according to claim 1, further comprising: receiving a response from the first wireless node, wherein the response comprises a confirmation of the spread of the increased amount of location-related information by the first wireless node.
[11]
11. The method of claim 1, further comprising:
send a second request to the first wireless node to terminate the broadcast of the increased amount of location-related information.
[12]
12. The method of claim 1, further comprising: receiving an increased amount of information related to the location broadcast by a second wireless node, wherein the increased amount of information related to the location received from the second wireless node is based on the first request and the type of wireless access.
[13]
13. The method of claim 1, wherein the location information for the UE comprises at least one of a location measurement for the first wireless node or an location estimate for the UE.
[14]
14. Mobile wireless device comprising: one or more processors; and a transceiver, coupled with one or more processors, configured to: send to a first wireless node a first request to transmit an increased amount of information related to location, the broadcast based on a type of wireless access to the first node wireless; receiving the increased amount of information related to the location broadcast by the first wireless node, the increased amount received being based on the type of wireless access; and obtain location information for the mobile wireless device based, at least in part, on the increased amount of location-related information.
[15]
15. Mobile wireless device according to claim 14, in which the type of wireless access is the Fifth Generation (5G), new Radio (NR) or Long-term Evolution (LTE).
[16]
16. Mobile wireless device according to claim 15, wherein the information related to the location comprises a Positioning Reference Signal (PRS).
[17]
17. Mobile wireless device according to claim 16, wherein the increased amount of location-related information comprises an increased PRS bandwidth, an increased frequency of PRS Positioning Occasions, an increased duration for a Positioning Occasion PRS, an increased number of separate PRS Signals, a PRS transmission using an uplink carrier frequency, or any combination thereof.
[18]
18. Mobile wireless device according to claim 15, wherein the location-related information comprises location assistance data.
[19]
19. Mobile wireless device according to claim 18, wherein the location assistance data comprises assistance data for one or more of: Observed Arrival Time Difference (OTDOA), Assisted Global Navigation Satellite System ( A-GNSS), Real-time Kinematics (RTK), Precise Point Positioning (PPP), Differential GNSS (DGNSS), or any combination thereof.
[20]
20. Mobile wireless device according to claim 18, wherein the increased amount of location-related information comprises an increased amount of location assistance data, additional types of location assistance data, a higher frequency of broadcasting. location assistance data, an increased repetition of the diffusion of location assistance data, or any combination thereof.
[21]
21. Mobile wireless device according to claim 14, wherein the first wireless node is a wireless service node for the mobile wireless device based on the type of wireless access.
[22]
22. Mobile wireless device according to claim 21, wherein the first request is sent using a Radio Resource Control (RRC) protocol for the type of wireless access.
[23]
23. Mobile wireless device according to claim 14, wherein one or more processors are additionally configured to: receive a response from the first wireless node, wherein the response comprises a confirmation of the spread of the increased amount of information related to the location by the first wireless node.
[24]
24. Mobile wireless device according to claim 14, wherein one or more processors are additionally configured to:
send a second request to the first wireless node to terminate the broadcast of the increased amount of location-related information.
[25]
25. Mobile wireless device according to claim 14, wherein one or more processors are additionally configured to: receive an increased amount of information related to the location broadcast by a second wireless node, wherein the increased amount of related information the location received from the second wireless node is based on the first request and the type of wireless access.
[26]
26. 26. Mobile wireless device according to claim 14, wherein the location information comprises at least one of a location measurement for the first wireless node or an location estimate for the mobile wireless device.
[27]
27. Device for support of location in user equipment (UE), the device comprising: means for sending to a first wireless node a first request for transmission of an increased amount of information related to location, the diffusion based on a type of wireless access to the first wireless node; means for receiving the increased amount of location-related information transmitted by the first wireless node, the increased amount received being based on the type of wireless access; and means for obtaining location information for the UE based, at least in part, on the increased amount of location-related information.
[28]
28. Device, according to claim 27, in which the type of wireless access is the Fifth Generation (5G), new Radio (NR) or Long Term Evolution (LTE).
[29]
29. Apparatus according to claim 28, wherein the information related to the location comprises a Positioning Reference Signal (PRS).
[30]
30. Non-transitory computer-readable media, to support location on user equipment (UE), programmed with instructions, executable on a processor, to: send to a first wireless node a first request for transmission of an increased amount of information related to location, the broadcast based on a type of wireless access to the first wireless node; receiving the increased amount of information related to the location broadcast by the first wireless node, the increased amount received being based on the type of wireless access; and obtaining location information for the UE based, at least in part, on the increased amount of location-related information.

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法律状态:
2021-11-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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