JPWO2021231134A5

JPWO2021231134A5 -

Info

Publication number: JPWO2021231134A5
Application number: JP2022568629A
Authority: JP
Publication date: 2024-05-02

Description

基地局304およびネットワークエンティティ306は各々、他のネットワークエンティティ(たとえば、他の基地局304、他のネットワークエンティティ306)と通信するための手段(たとえば、送信するための手段、受信するための手段など)を提供する、それぞれ、1つまたは複数のネットワークトランシーバ380および390を含む。たとえば、基地局304は、1つまたは複数の有線またはワイヤレスのバックホールリンクを介して他の基地局304またはネットワークエンティティ306と通信するための、1つまたは複数のネットワークトランシーバ380を採用し得る。別の例として、ネットワークエンティティ306は、1つもしくは複数の有線もしくはワイヤレスのバックホールリンクを介して1つもしくは複数の基地局304と、または1つもしくは複数の有線もしくはワイヤレスのコアネットワークインターフェースを介して他のネットワークエンティティ306と通信するための、1つまたは複数のネットワークトランシーバ390を採用し得る。 The base station 304 and the network entity 306 each include one or more network transceivers 380 and 390, respectively, that provide a means for communicating (e.g., a means for transmitting, a means for receiving, etc.) with other network entities (e.g., other base stations 304, other network entities 306). For example, the base station 304 may employ one or more network transceivers 380 to communicate with other base stations 304 or network entities 306 over one or more wired or wireless backhaul links. As another example, the network entity 306 may employ one or more network transceivers 390 to communicate with one or more base stations 304 over one or more wired or wireless backhaul links or with other network entities 306 over one or more wired or wireless core network interfaces.

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising:
performing at least one positioning measurement of at least one Downlink Positioning Reference Signal (DL-PRS) received from a Transmitting Receiving Point (TRP) during a positioning session;
reporting a value of said at least one positioning measurement to a positioning entity via lower layer signaling;
determining a timestamp for the at least one positioning measurement relative to a reference point, the timestamp comprising an amount of time relative to the reference point for which the at least one positioning measurement is valid, the timestamp comprising sufficient bits to specify a time of the at least one positioning measurement within a subset of slots within a given time period during which a DL-PRS is scheduled;
reporting the timestamp for the at least one positioning measurement related to the reference point to the positioning entity via the lower layer signaling;
A method for providing the above .

The reference point is
-relating to a symbol , slot boundary, subframe boundary, or frame boundary ,
a time period following the last slot of the last DL-PRS instance that includes the at least one DL-PRS ;
- starting a DL-PRS instance including the at least one DL-PRS based on DL-PRS resources of the DL-PRS instance spanning more than a threshold time period.
One of the
The method of claim 1 .

2. The method of claim 1, further comprising: receiving the reference point and the size of the timestamp via second lower layer signaling from the TRP.

4. The method of claim 3 , wherein the second lower layer signaling comprises a medium access control control element (MAC-CE) command or a downlink control information (DCI).

determining a plurality of positioning measurements and a timestamp for each of the plurality of positioning measurements relative to the reference point, each timestamp comprising an amount of time between the reference point and a time that a corresponding positioning measurement of the plurality of positioning measurements is valid;
The method of claim 1 .

The method of claim 5 , wherein the plurality of positioning measurements comprises positioning measurements for a plurality of different positioning methods being performed by the UE during the positioning session.

the reference point applies to all of the positioning measurements for the plurality of different positioning methods ; or
The method of claim 6 , wherein the UE determines only one timestamp for each group of positioning measurements performed on the same DL-PRS.

reporting an additional plurality of positioning measurements associated with the plurality of different positioning methods;
and determining timestamps for the additional plurality of positioning measurements relative to the reference point.

The method of claim 1 , further comprising: reporting the reference point to the TRP or the positioning entity.

the reference point is reported via higher layer signaling; or the reference point is reported via lower layer signaling having a duty cycle longer than the value of the at least one positioning measurement.
The method of claim 9 .

The method of claim 1 , wherein the reference point is applied to a threshold number of nearest DL-PRS instances .

The method of claim 1 , wherein the reference point comprises a timestamp of another measurement of another DL-PRS performed by the UE during the positioning session .

1. A method of wireless communication performed by a network entity, comprising:
receiving from a user equipment (UE) via lower layer signaling a value of at least one positioning measurement of at least one Downlink Positioning Reference Signal (DL-PRS), the value of the at least one positioning measurement being received at a reception time during a positioning session between the network entity and the UE;
determining a reference point for a timestamp for said at least one positioning measurement;
determining the timestamp based on the reception time, the reference point, and an offset, the timestamp comprising an amount of time relative to the reference point for which the at least one positioning measurement is valid, the timestamp comprising sufficient bits to specify a time of the at least one positioning measurement within a subset of slots in a given time period during which a DL-PRS is scheduled .

A user equipment (UE),
Memory,
At least one transceiver;
and at least one processor communicatively coupled to the memory and to the at least one transceiver, the at least one processor comprising:
performing at least one positioning measurement of at least one downlink positioning reference signal (DL-PRS) received from a transmitting receiving point (TRP) during a positioning session;
reporting via lower layer signaling values of said at least one positioning measurement to a positioning entity via said at least one transceiver;
determining a timestamp for the at least one positioning measurement relative to a reference point, the timestamp comprising an amount of time relative to the reference point for which the at least one positioning measurement is valid, the timestamp comprising sufficient bits to specify a time of the at least one positioning measurement within a subset of slots within a given time period during which a DL-PRS is scheduled;
configured to report the timestamp for the at least one positioning measurement related to the reference point to the positioning entity via the lower layer signaling.
User Equipment (UE) .

A network entity comprising:
Memory,
At least one transceiver;
and at least one processor communicatively coupled to the memory and to the at least one transceiver, the at least one processor comprising:
receiving via lower layer signaling from a user equipment (UE) via the at least one transceiver a value of at least one positioning measurement of at least one Downlink Positioning Reference Signal (DL-PRS), the value of the at least one positioning measurement being received at a reception time during a positioning session between the network entity and the UE;
determining a reference point for a timestamp for the at least one positioning measurement;
determining the time stamp based on the receipt time, the reference point, and an offset;
the timestamp comprises an amount of time relative to the reference point for which the at least one positioning measurement is valid;
the timestamp comprises sufficient bits to specify a time of the at least one positioning measurement within a subset of slots within a given time period during which a DL-PRS is scheduled.
Network entity .