Method and system for activating beam state in MAC CE

Patent metadata

Field	Value
Publication number	US-12556935-B2
Application number	US-202318331614-A
Country	US
Kind code	B2
Filing date	Jun 8, 2023
Priority date	Apr 2, 2021
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

Example implementations include a wireless communication method of receiving, by a wireless communication device from a network, beam state activation information, the beam state activation information corresponding to a mode, and communicating, by the wireless communication with the network, a target signal according to at least one of the beam state activation information or the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal. Example implementations also include a wireless communication method of sending, by a network to a wireless communication device, a beam state activation information, the beam state activation information corresponding to a mode, and communicating, by the network with the wireless communication device, a target signal according to at least one of the beam state activation information or the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal.

First claim

The invention claimed is:

1 . A wireless communication method, comprising:
receiving, by a wireless communication device from a network, beam state activation information, the beam state activation information corresponding to a mode; and communicating, by the wireless communication device with the network, a target signal according to the beam state activation information and the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal, wherein the mode comprises at least one of a unified downlink and uplink mode or a joint downlink and uplink mode, and wherein: the beam state activation information comprises one or more groups of beam states, wherein a beam state of the one or more groups of beam states corresponding to the unified downlink and uplink mode is used for both the downlink target signal and the uplink target signal, wherein among beam states of the one or more groups of beam states corresponding to the joint downlink and uplink mode, at least one beam state is used for the downlink target signal and at least one other beam state is used for the uplink target signal; and determining, by the wireless communication device, a maximum number of beam states that correspond to the mode, wherein the maximum number depends on a value indicated by the network, is a predefined value, or depends on capability of the wireless communication device.

2 . The method of claim 1 , wherein:
the first half of the beam states in a group of beam states corresponding to the joint downlink and uplink mode are used for the downlink target signal, and the other half of the beam states are used for the uplink target signal; or the first half of the beam states in a group of beam states corresponding to the joint downlink and uplink mode are used for the uplink target signal, and the other half of the beam states are used for the downlink target signal.

3 . The method of claim 1 , wherein a beam state of the one or more beam states correspond to the unified downlink and uplink mode.

4 . The method of claim 1 , further comprising:
sending, by the wireless communication device to the network, information indicating that the wireless communication device supports one of: a combination of a downlink mode and an uplink mode; a combination of the downlink mode, the uplink mode, and the unified downlink and uplink mode; the joint downlink and uplink mode; a combination of the joint downlink and uplink mode and the unified downlink and uplink mode; or the unified downlink and uplink mode.

5 . The method of claim 1 , wherein the maximum number comprises one of:
a maximum number of beam states with downlink usage in one group of beam states is M1; a maximum number of beam states with uplink usage in one group of beam states is M2; a maximum number of beam states with downlink usage in the beam state activation information is M3; a maximum number of beam states with uplink usage in the beam state activation information is M4, and each of M1, M2, M3, or M4 is an integer equal to or greater than 1.

6 . The method of claim 5 , wherein:
a value of M1 is a predefined value or depends on a maximum number of beam states indicated in a DCI for the downlink target signal; a value of M2 is a predefined value or depends on a maximum number of beam states indicated in a DCI for a uplink target signal; and M3 or M4 is a predefined value or depends on at least one of capability of the wireless communication device or configuration by the network.

7 . The method of claim 6 , wherein:
a number of activated beam states with the downlink usage comprises at least one of the number of beam states with the downlink mode, a number of beam states with the unified downlink and uplink mode, or a number of beam states with the joint downlink and uplink mode; and a number of beam states with of the uplink usage comprises at least one of a number of beam states with the number of beam states with the unified downlink and uplink mode, or the number of beam states with joint downlink and uplink mode.

8 . The method of claim 1 , wherein:
a number of beam states with downlink usage or uplink usage is a number of beam states with different beam state IDs with the downlink usage or the uplink usage respectively; or the number of beam states with the downlink usage or the uplink usage is a number of beam states with different values of a same type of Quasi Co-Location (QCL) parameter with usage of downlink or uplink respectively.

9 . The method of claim 1 , further comprising receiving, by the wireless communication device from the network, indication of at least one of a unified configuration or a separate configuration for the one or more groups of beam states, wherein one of:
the unified configuration is indicated, the mode is the unified downlink and uplink mode; the separate configuration is indicated, the mode is the joint downlink and uplink mode; or both the unified configuration and the separate configuration are indicated, the mode is at least one of the unified downlink and uplink mode, or the joint downlink and uplink mode.

10 . A wireless communication device, comprising:
at least one processor configured to:
receive, via an interface from a network, beam state activation information, the beam state activation information corresponding to a mode; and
communicate, via the interface with the network, a target signal according to the beam state activation information and the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal,
wherein the mode comprises at least one of a unified downlink and uplink mode, or a joint downlink and uplink mode, and wherein: the beam state activation information comprises one or more groups of beam states, wherein a beam state of the one or more groups of beam states corresponding to the unified downlink and uplink mode is used for both the downlink target signal and the uplink target signal, wherein among beam states of the one or more groups of beam states corresponding to the joint downlink and uplink mode, at least one beam state is used for the downlink target signal and at least one other beam state is used for the uplink target signal; and determine a maximum number of beam states that correspond to the mode, wherein the maximum number depends on a value indicated by the network, is a predefined value, or depends on capability of the wireless communication device.

11 . A wireless communication method, comprising:
sending, by a network to a wireless communication device, a beam state activation information, the beam state activation information corresponding to a mode; and communicating, by the network with the wireless communication device, a target signal according to the beam state activation information and the mode, wherein the target signal comprises at least one of downlink target signal or uplink target signal, wherein the mode comprises at least one of a unified downlink and uplink mode, or a joint downlink and uplink mode, and wherein: the beam state activation information comprises one or more groups of beam states, wherein a beam state of the one or more groups of beam states corresponding to the unified downlink and uplink mode is used for both the downlink target signal and the uplink target signal, wherein among beam states of the one or more groups of beam states corresponding to the joint downlink and uplink mode, at least one beam state is used for the downlink target signal and at least one other beam state is used for the uplink target signal, and wherein the wireless communication device determines a maximum number

Assignees

• Zte Corp

Inventors

• Yao Ke
• Gao Bo
• Zhang Shujuan
• Jiang Chuangxin
• Lu Zhaohua

Classifications

• H04W72/1263

  Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows · CPC title

• H04W72/232

  the control data signalling from the physical layer, e.g. DCI signalling · CPC title

• H04W52/42

  in systems with time, space, frequency or polarisation diversity · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04W16/28 Primary

  using beam steering · CPC title