Neighboring cell relative mobility information for vehicle mounted relays

Patent metadata

Field	Value
Publication number	US-12563466-B2
Application number	US-202218275427-A
Country	US
Kind code	B2
Filing date	Feb 2, 2022
Priority date	Feb 9, 2021
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A wireless terminal communicates with an access node via a serving cell and comprises receiver circuitry and processor circuitry. The receiver circuitry is configured to receive, from the serving cell, at least one message comprising: an identity of a neighboring cell, and; neighboring cell relative mobility information indicating mobility state of the neighboring cell relative to the serving cell. The processor circuitry is configured to perform a cell reselection procedure based on the neighboring cell relative mobility information.

First claim

What is claimed is:

1 . A wireless terminal of a cellular telecommunication system, the wireless terminal communicating with an access node via a serving cell, the wireless terminal comprising:
receiver circuitry configured to receive, from the serving cell, at least one message comprising:
an identity of a neighboring cell,
neighboring cell relative mobility information indicating a mobility state of the neighboring cell relative to the serving cell, and
a plurality of cell reselection parameter sets; and
processor circuitry configured to:
select, based on the neighboring cell relative mobility information, a cell reselection parameter set from the plurality of cell reselection parameter sets, and
perform a cell reselection procedure using the selected cell reselection parameter set, wherein
the plurality of cell reselection parameter sets is used to differentiate a likelihood of reselecting the neighboring cell based on the mobility state of the neighboring cell relative to the serving cell.

2 . The wireless terminal of claim 1 , wherein the mobility state comprises an indication indicating whether the neighboring cell is stationary or mobile relative to the serving cell.

3 . The wireless terminal of claim 2 , wherein the neighboring cell is mobile relative to the serving cell in a case that at least one transmission and reception point (TRP) for the neighboring cell moves relative to at least one TRP for the serving cell.

4 . The wireless terminal of claim 2 , wherein the neighboring cell is stationary relative to the serving cell in a case that at least one transmission and reception point (TRP) for the neighboring cell does not move relative to at least one TRP for the serving cell.

5 . The wireless terminal of claim 2 , wherein a first parameter set of the plurality of cell reselection parameter sets is used during the cell reselection procedure for the neighboring cell in a case that the indication indicates that the neighboring cell is stationary relative to the serving cell.

6 . The wireless terminal of claim 5 , wherein a second parameter set of the plurality of cell reselection parameter sets is used during the cell reselection procedure for the neighboring cell in a case that the indication indicates that the neighboring cell is mobile relative to the serving cell.

7 . The wireless terminal of claim 1 , wherein the neighboring cell relative mobility information is included in one or more system information blocks (SIBs).

8 . An access node of a cellular telecommunication system, the access node serving a wireless terminal via a serving cell, the access node comprising:
processor circuitry configured to generate at least one message comprising:
an identity of a neighboring cell,
neighboring cell relative mobility information indicating a mobility state of the neighboring cell relative to the serving cell, and
a plurality of cell reselection parameter sets; and
transmitter circuitry configured to transmit, from the serving cell to the wireless terminal, the message, wherein;
the neighboring cell relative mobility information is used by the wireless terminal to perform a cell reselection procedure, and
the plurality of cell reselection parameter sets is used by the wireless terminal to differentiate a likelihood of reselecting the neighboring cell based on the mobility state of the neighboring cell relative to the serving cell.

9 . The access node of claim 8 , wherein the mobility state comprises an indication indicating whether the neighboring cell is stationary or mobile relative to the serving cell.

10 . The access node of claim 9 , wherein the neighboring cell is mobile relative to the serving cell in a case that at least one transmission and reception point (TRP) for the neighboring cell moves relative to at least one TRP for the serving cell.

11 . The access node of claim 9 , wherein the neighboring cell is stationary relative to the serving cell in a case that at least one transmission and reception point (TRP) for the neighboring cell does not move relative to at least one TRP for the serving cell.

12 . The access node of claim 9 , wherein a first parameter set of the plurality of cell reselection parameter sets is used during the cell reselection procedure for the neighboring cell in a case that the indication indicates that the neighboring cell is stationary relative to the serving cell.

13 . The access node of claim 12 , wherein a second parameter set of the plurality of cell reselection parameter sets is used during the cell reselection procedure for the neighboring cell in a case that the indication indicates that the neighboring cell is mobile relative to the serving cell.

14 . The access node of claim 8 , wherein the neighboring cell relative mobility information is included in one or more system information blocks (SIBs).

15 . A method performed by a wireless terminal of a cellular telecommunication system, the wireless terminal communicating with an access node via a serving cell, the method comprising:
receiving, from the serving cell, at least one message comprising:
an identity of a neighboring cell,
neighboring cell relative mobility information indicating a mobility state of the neighboring cell relative to the serving cell, and
a plurality of cell reselection parameter sets;
selecting, based on the neighboring cell relative mobility information, a cell reselection parameter set from the plurality of cell reselection parameter sets; and performing a cell reselection procedure using the selected cell reselection parameter set, wherein
the plurality of cell reselection parameter sets is used to differentiate a likelihood of reselecting the neighboring cell based on the mobility state of the neighboring cell relative to the serving cell.

Assignees

• Sharp Kk

Inventors

• Ishii Atsushi

Classifications

• H04W36/0083

  Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists · CPC title

• H04W36/0061

  of neighbour cell information · CPC title

• H04W36/324

  by mobility data, e.g. speed data · CPC title

• H04W48/12

  using downlink control channel · CPC title

• H04W84/005

  Moving wireless networks · CPC title