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EP-4275367-B1 - STORING POSITIONING-RELATED CAPABILITIES IN THE NETWORK

EP4275367B1EP 4275367 B1EP4275367 B1EP 4275367B1EP-4275367-B1

Inventors

  • MANOLAKOS, Alexandros
  • AKKARAKARAN, SONY
  • FISCHER, SVEN

Dates

Publication Date
20260513
Application Date
20211228

Claims (15)

  1. A method (900) of wireless communication performed by a user equipment, UE, comprising: transmitting (910) one or more positioning capability reports to a location server, the one or more positioning capability reports including a first set of values for a set of positioning capability parameters and a second set of values for the set of positioning capability parameters, wherein the first set of values indicate variable positioning capabilities of the UE represented by the set of positioning capability parameters, and wherein the second set of values indicate non-variable positioning capabilities of the UE represented by the set of positioning capability parameters.
  2. A method (1000) of wireless communication performed by a network entity, comprising: receiving (1010) one or more positioning capability reports from a user equipment, UE, the one or more positioning capability reports including a first set of values for a set of positioning capability parameters and a second set of values for the set of positioning capability parameters, wherein the first set of values indicate variable positioning capabilities of the UE represented by the set of positioning capability parameters, and wherein the second set of values indicate non-variable positioning capabilities of the UE represented by the set of positioning capability parameters.
  3. The method of claim 1, or the method of claim 2 wherein the network entity is a location server, the method further comprising: respectively receiving from the location server or transmitting to the UE a positioning capability request indicating the set of positioning capability parameters.
  4. The method of claim 3, wherein the positioning capability request includes a flag indicating that values of the set of positioning capability parameters will be stored by a second network entity.
  5. The method of claim 4 when dependent from claim 1, wherein the one or more positioning capability reports including the first set of values and the second set of values are transmitted in response to the positioning capability request including the flag.
  6. The method of claim 1, wherein the one or more positioning capability reports include a flag indicating that the second set of values indicate positioning capabilities of the UE represented by the set of positioning capability parameters to be stored by a second network entity for subsequent positioning sessions.
  7. The method of claim 1 or 2, wherein the second set of values is a subset of values for the set of positioning capability parameters.
  8. The method of claim 7, wherein each value of the subset of values is associated with a flag indicating that the value is to be stored by a second network entity for subsequent positioning sessions.
  9. The method of claim 7, wherein the first set of values is a different set of values for the subset of values for the set of positioning capability parameters.
  10. The method of claim 1 or 2, wherein: the variable positioning capabilities are positioning capabilities that the UE is only capable of providing for a limited time, and the non-variable positioning capabilities are positioning capabilities that the UE is always capable of providing.
  11. The method of claim 1 or 2, wherein: the second set of values are differential values relative to the first set of values, or the first set of values are differential values relative to the second set of values.
  12. The method of claim 1 or 2, wherein the non-variable positioning capabilities of the UE represented by the set of positioning capability parameters are to be stored by an access and mobility management function, AMF.
  13. A user equipment, UE, (204; 302) comprising: a memory (340); at least one transceiver (310; 320); and at least one processor (332) communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: transmit, via the at least one transceiver, one or more positioning capability reports to a location server, the one or more positioning capability reports including a first set of values for a set of positioning capability parameters and a second set of values for the set of positioning capability parameters, wherein the first set of values indicate variable positioning capabilities of the UE represented by the set of positioning capability parameters, and wherein the second set of values indicate non-variable positioning capabilities of the UE represented by the set of positioning capability parameters.
  14. A network entity (306), comprising: a memory (396); at least one transceiver (390); and at least one processor (394) communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: receive, via the at least one transceiver, one or more positioning capability reports from a user equipment, UE, the one or more positioning capability reports including a first set of values for a set of positioning capability parameters and a second set of values for the set of positioning capability parameters, wherein the first set of values indicate variable positioning capabilities of the UE represented by the set of positioning capability parameters, and wherein the second set of values indicate non-variable positioning capabilities of the UE represented by the set of positioning capability parameters.
  15. A non-transitory computer-readable medium storing computer executable instructions which, when executed by a processor communicatively coupled to a memory and at least one transceiver of a user equipment or network entity, cause the user equipment to carry out the method of any of claims 1 or 3 to 12 or the network entity to carry out the method of any of claims 2 to 4 or 6 to 12.

Description

BACKGROUND OF THE DISCLOSURE 1. Field of the Disclosure Aspects of the disclosure relate generally to wireless communications. 2. Description of the Related Art Wireless communication systems have developed through various generations, including a first-generation analog wireless phone service (1G), a second-generation (2G) digital wireless phone service (including interim 2.5G and 2.75G networks), a third-generation (3G) high speed data, Internet-capable wireless service and a fourth-generation (4G) service (e.g., Long Term Evolution (LTE) or WiMax). There are presently many different types of wireless communication systems in use, including cellular and personal communications service (PCS) systems. Examples of known cellular systems include the cellular analog advanced mobile phone system (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), the Global System for Mobile communications (GSM), etc. A fifth generation (5G) wireless standard, referred to as New Radio (NR), enables higher data transfer speeds, greater numbers of connections, and better coverage, among other improvements. The 5G standard, according to the Next Generation Mobile Networks Alliance, is designed to provide higher data rates as compared to previous standards, more accurate positioning (e.g., based on reference signals for positioning (RS-P), such as downlink, uplink, or sidelink positioning reference signals (PRS)), and other technical enhancements. These enhancements, as well as the use of higher frequency bands, advances in PRS processes and technology, and high-density deployments for 5G, enable highly accurate 5G-based positioning. R2-2008810 "Further discussion on enhancements for commercial use cases" by Catt, 3GPP Draft, vol RAN WG2, Online, 23 October 2020 describes at section 2.3 an enhancement on latency in which the capabilities of UEs may be reported to core network before the location request. The process related with capabilities can be removed for all Positioning scenarios, so the latency of these processes will be reduced. Positioning capabilities of UE may be reported to AMF directly before there is a location request, instead of to LMF via LPP session, in order to reduce the positioning latency. This solution also works for the positioning in Idle/Inactive mode. AMF can store these capabilities before UE steps into RRC_CONNECTED mode. When LMF needs the location capabilities of UE, AMF may forward the capabilities of this UE to LMF after step 10 LMF selection, before step 12 UE positioning in Figure 6.1.2-1: 5GC-MT-LR Procedure for the commercial location services. R2-2008810 proposes to support the process that UE location capabilities report to AMR in idle/inactive directly without entering into RRC_CONNECTED mode in LPP session, in order to reduce latency and support the positioning in Idle/Inactive mode. R2-095985 "Considerations for some LPP stage 2 outstanding issues" by Nokia Siemens Networks, Nokia Corporation, 3GPP TSG-RAN WG2 Meeting #67bis, Miyazaki, 12-16 October 2009 proposes that only the supported UE positioning methods and a bit to indicate whether additional UE capabilities are available for query by the E-SMLC are to be indicated as part NAS capability to the MME. R2-2001947 "[Offline-622][POS] Summary on uplink capability for positioning" by Huawei, HiSilicon, 3GPP TSG-RAN WG2 Meeting #109-e, 24 February - 6 March 2020 proposes at least some SRS related capabilities are needed at LMF for multi-RTT positioning. The SRS related capabilities include aspects on SRS configuration, SRS transmission, or SRS measurement. It also proposes at least some SRS related capabilities are needed at LMF for UL-only positioning. The SRS related capabilities include aspects on SRS configuration, or SRS transmission. SUMMARY The invention is defined in the appended independent claims. Optional features are defined in the dependent claims. Other objects and advantages associated with the aspects disclosed herein will be apparent to those skilled in the art based on the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are presented to aid in the description of various aspects of the disclosure and are provided solely for illustration of the aspects and not limitation thereof. FIG. 1 illustrates an example wireless communications system, according to aspects of the disclosure.FIGS. 2A and 2B illustrate example wireless network structures, according to aspects of the disclosure.FIGS. 3A to 3C are simplified block diagrams of several sample aspects of components that may be employed in a user equipment (UE), a base station, and a network entity, respectively, and configured to support communications as taught herein.FIG. 4 illustrates an example positioning operation, according to aspects of the disclosure.FIG. 5 illustrates an example Long-Term Evolutio