Positioning reference signal processing

Patent metadata

Field	Value
Publication number	US-2023104211-A1
Application number	US-202117799447-A
Country	US
Kind code	A1
Filing date	Jan 12, 2021
Priority date	Feb 21, 2020
Publication date	Apr 6, 2023
Grant date	—

Abstract

A user equipment includes: an interface; a memory; and a processor, communicatively coupled to the interface and the memory, configured to: receive a plurality of requests to process a corresponding plurality of positioning reference signal (PRS) groups, each of the plurality of PRS groups having respective PRS characteristics; determine a priority for processing the plurality of PRS groups according to at least one priority criterion; determine whether a total amount of the PRS characteristics of the plurality of PRS groups exceeds a PRS processing capability of the processor; select, in response to the total amount of the PRS characteristics exceeding the PRS processing capability of the processor, a subset of the plurality of PRS groups based on the priority for processing; and process the subset of the plurality of PRS groups to determine position information.

First claim

1 . A user equipment (UE) comprising:
an interface; a memory; and a processor, communicatively coupled to the interface and the memory, configured to:
receive a plurality of requests to process a corresponding plurality of positioning reference signal (PRS) groups, each of the plurality of PRS groups having respective PRS characteristics;
determine a priority for processing the plurality of PRS groups according to at least one priority criterion;
determine whether a total amount of the PRS characteristics of the plurality of PRS groups exceeds a PRS processing capability of the processor; and
select, in response to the total amount of the PRS characteristics of the plurality of PRS groups exceeding the PRS processing capability of the processor, a subset of the plurality of PRS groups based on the priority for processing; and
process the subset of the plurality of PRS groups to determine position information.

2 . The UE of claim 1 , wherein the processor is configured to select the subset of the plurality of PRS groups such that the subset of the plurality of PRS groups is within the PRS processing capability of the processor.

3 . The UE of claim 1 , wherein each of the plurality of PRS groups comprises a plurality of PRS symbols, or a plurality of PRS resources, or a plurality of PRS resource sets, or a plurality of frequency layers.

4 . The UE of claim 1 , wherein to select the subset of the plurality of PRS groups the processor is configured to select a first subset of the plurality of PRS groups that includes a maximum number of highest-priority PRS groups of the plurality of PRS groups, based on the priority for processing, with a first subset total quantity of the PRS characteristics of the first subset of the plurality of PRS groups being equal to or less than the PRS processing capability of the processor, and to exclude any portion of any of the plurality of PRS groups having a lower priority than a lowest-priority PRS group of the first subset of the plurality of PRS groups.

5 . The UE of claim 1 , wherein to select the subset of the plurality of PRS groups the processor is configured to select a second subset of the plurality of PRS groups that includes a maximum number of highest-priority PRS groups of the plurality of PRS groups, based on the priority for processing, with a second subset total quantity of the PRS characteristics of the second subset of the plurality of PRS groups being equal to or less than the PRS processing capability of the processor, and to select a portion of a next-highest priority PRS group, relative to the second subset, of the plurality of PRS groups that is equal to a difference between the second subset total quantity of the PRS characteristics and the PRS processing capability of the processor.

6 . The UE of claim 5 , wherein each of the plurality of PRS groups comprises a plurality of PRS symbols, and wherein the processor is configured to select as the portion of the next-highest priority PRS group of the plurality of PRS groups a quantity of symbols, of the next-highest priority PRS group of the plurality of PRS groups, that is equal to a difference between a total quantity of PRS symbols of the second subset of the plurality of PRS groups and a PRS symbol processing capability of the processor.

7 . The UE of claim 5 , wherein each the plurality of PRS groups comprises a plurality of PRS resources, and wherein the processor is configured to select as the portion of the next-highest priority PRS group of the plurality of PRS groups a quantity of PRS resources, of the next-highest priority PRS group of the plurality of PRS groups, that is equal to a difference between a total quantity of PRS resources of the second subset of the plurality of PRS groups and a PRS resource processing capability of the processor.

8 . The UE of claim 1 , further comprising a transmitter communicatively coupled to the processor, wherein the processor is configured to send, via the transmitter, an indication of the PRS processing capability of the processor to a network entity.

9 . The UE of claim 8 , wherein the processor is configured to send, as the indication of the PRS processing capability of the processor, a quantity of PRS resources, or a quantity of PRS symbols, or a quantity of PRS resource sets, or a quantity of frequency layers.

10 . The UE of claim 9 , wherein the processor is configured to send, as the indication of the PRS processing capability of the processor:
at least one first tuple comprising the quantity of PRS resources and a first time window; or at least one second tuple comprising the quantity of PRS symbols and a second time window; or a combination of these.

11 . The UE of claim 8 , wherein the processor is configured to determine the indication of the PRS processing capability of the processor based on non-PRS processing capability of the processor for processing information other than PRS.

12 . The UE of claim 1 , wherein the at least one priority criterion comprises whether the position information is a location of the UE or a positioning signal measurement, or a time of arrival of each of at least two of the plurality of PRS groups, or whether each of the plurality of requests was a scheduled request.

13 . A user equipment (UE) comprising:
means for receiving a plurality of requests to process a corresponding plurality of positioning reference signal (PRS) groups, each of the plurality of PRS groups having respective PRS characteristics; means for determining a priority for processing of the plurality of PRS groups according to at least one priority criterion; means for determining whether a total amount of the PRS characteristics of the plurality of PRS groups exceeds a PRS processing capability of the UE; selecting means for selecting, in response to the total amount of the PRS characteristics of the plurality of PRS groups exceeding the PRS processing capability of the UE, a subset of the plurality of PRS groups based on the priority for processing; and means for processing the subset of the plurality of PRS groups to determine position information.

14 . The UE of claim 13 , wherein the selecting means comprise means for selecting the subset of the plurality of PRS groups such that the subset of the plurality of PRS groups is within the PRS processing capability of the UE.

15 . The UE of claim 13 , wherein each of the plurality of PRS groups comprises a plurality of PRS symbols, or a plurality of PRS resources, or a plurality of PRS resource sets, or a plurality of frequency layers.

16 . The UE of claim 13 , wherein to select the subset of the plurality of PRS groups the selecting means comprise means for selecting a first subset of the plurality of PRS groups that includes a maximum number of highest-priority PRS groups of the plurality of PRS groups, based on the priority for processing, with a first subset total quantity of the PRS characteristics of the first subset of the plurality of PRS groups being equal to or less than the PRS processing capability of the UE, and to exclude any portion of any of the plurality of PRS groups having a lower priority than a lowest-priority PRS group of the first subset of the plurality of PRS groups.

17 . The UE of claim 13 , wherein to select the subset of the plurality of PRS groups the selecting means comprise means for selecting a second subset of the plurality of PRS groups that includes a maximum number of highest-priority PRS groups of the plurality of PRS groups, based on the priority for processing, with a second subset total quantity of the PRS charact

Assignees

• Qualcomm Inc

Inventors

• Manolakos Alexandros
• Mukkavilli Krishna Kiran
• Ji Tingfang

Classifications

• H04W8/22

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04W64/00

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• G01S5/0205

  Details · CPC title

• H04L5/0051 Primary

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title