Communication method and apparatus

Patent metadata

Field	Value
Publication number	US-2024244563-A1
Application number	US-202418428250-A
Country	US
Kind code	A1
Filing date	Jan 31, 2024
Priority date	Aug 6, 2021
Publication date	Jul 18, 2024
Grant date	—

Abstract

A communication method and apparatus. The method includes: a first access network device receives a retrieve UE context request message from a second access network device and sends first information to a positioning management network element. The first information indicates at least one of the following: an area change, update of a sounding reference signal (SRS) configuration, or update of an area. The area is an area in which the SRS configuration configured by the first access network device for a terminal is valid. One area includes at least one cell. That the first information indicates the area change is that the first information includes at least one of the following: the area change, moving out of the area, a cell change, moving out of a cell, an area identity, or a cell identity.

First claim

1 . A communication method, comprising:
receiving, by a first access network device, a retrieve user equipment (UE) context request message from a second access network device; and sending, by the first access network device, first information to a positioning management network element, wherein the first information indicates at least one of: an area change, update of a sounding reference signal (SRS) configuration, or update of an area, and the area is an area in which the SRS configuration configured by the first access network device for a terminal is valid.

2 . The method according to claim 1 , wherein before receiving, by the first access network device, the retrieve UE context request message from a second access network device, the method further comprises:
receiving, by the first access network device, a first positioning information request message from the positioning management network element, wherein the first positioning information request message is used to request first positioning information of the terminal, and the first positioning information comprises area information of the area; and sending, by the first access network device, a first positioning information response message to the positioning management network element, wherein the first positioning information response message carries the first positioning information.

3 . The method according to claim 1 , wherein the retrieve UE context request message carries second information, and the second information indicates at least one of:
the area change, the update of the SRS configuration, the update of the area, update of positioning information of the terminal, or positioning of the terminal.

4 . The method according to claim 1 , wherein the first information indicating the area change comprises:
the first information comprises at least one of: the area change, moving out of the area, a cell change, moving out of a cell, an area identity, or a cell identity, wherein one area comprises at least one cell.

5 . The method according to claim 1 , wherein the first information is carried in a positioning information update message.

6 . A communication method, comprising:
receiving, by a positioning management network element, first information from a first access network device, wherein the first information indicates at least one of: an area change, update of an SRS configuration, or update of an area, the first access network device is an anchor access network device of a terminal, and the area is an area in which the SRS configuration configured by the first access network device for the terminal is valid; and sending, by the positioning management network element, a second positioning information request message to a second access network device, wherein the second access network device is an access network device on which the terminal currently camps, and the second positioning information request message is used to request second positioning information of the terminal.

7 . The method according to claim 6 , wherein before receiving, by the positioning management network element, first information from a first access network device, the method further comprises:
sending, by the positioning management network element, a first positioning information request message to the first access network device, wherein the first positioning information request message is used to request first positioning information of the terminal, and the first positioning information comprises area information of the area; and receiving, by the positioning management network element, a first positioning information response message from the first access network device, wherein the first positioning information response message carries the first positioning information.

8 . The method according to claim 6 , wherein after sending, by the positioning management network element, the second positioning information request message to a second access network device, the method further comprises:
receiving, by the positioning management network element, a second positioning information response message from the second access network device, wherein the second positioning information response message comprises second positioning information of the terminal.

9 . The method according to claim 6 , wherein the first information indicating the area change comprises:
the first information comprises at least one of: the area change, moving out of the area, a cell change, moving out of a cell, an area identity, or a cell identity, wherein one area comprises at least one cell.

10 . The method according to claim 6 , wherein the first information is carried in a positioning information update message.

11 . A communication apparatus, comprising a receiver and a sender, wherein
the receiver is configured to receive a retrieve user equipment (UE) context request message from a second access network device; and the sender is configured to send first information to a positioning management network element, wherein the first information indicates at least one of: an area change, update of a sounding reference signal (SRS) configuration, or update of an area, and the area is an area in which the SRS configuration configured by the first access network device for a terminal is valid.

12 . The apparatus according to claim 11 , wherein the receiver is further configured to: before receiving the retrieve UE context request message from the second access network device, receive a first positioning information request message from the positioning management network element, wherein the first positioning information request message is used to request first positioning information of the terminal, and the first positioning information comprises area information of the area; and
the sender is further configured to send a first positioning information response message to the positioning management network element, wherein the first positioning information response message carries the first positioning information.

13 . The apparatus according to claim 11 , wherein the retrieve UE context request message carries second information, and the second information indicates at least one of:
the area change, the update of the SRS configuration, the update of the area, update of positioning information of the terminal, or positioning of the terminal.

14 . The apparatus according to claim 11 , wherein the first information indicating the area change comprises: the first information comprises at least one:
the area change, moving out of the area, a cell change, moving out of a cell, an area identity, or a cell identity, wherein one area comprises at least one cell.

15 . The apparatus according to claim 11 , wherein the first information is carried in a positioning information update message.

Assignees

• Huawei Tech Co Ltd

Inventors

• Hao Jinping
• Jin Yinghao

Classifications

• H04W36/08

  Reselecting an access point · CPC title

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W36/0033

  with transfer of context information · CPC title

• G01S5/0036

  of measured values, i.e. measurement on mobile and position calculation on base station · CPC title

• H04W68/06

  using multi-step notification by changing the notification area · CPC title