Communication method for terminal and communication apparatus

Patent metadata

Field	Value
Publication number	US-12549939-B2
Application number	US-202318302509-A
Country	US
Kind code	B2
Filing date	Apr 18, 2023
Priority date	Oct 20, 2020
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

A communication method includes receiving a first capability query request from a first access device; sending a first capability reporting message to the first access device; receiving a second capability query request from a second access device; and sending a second capability reporting message to the second access device. Neither a first terminal capability nor a second terminal capability is greater than a capability specification of the terminal, the capability specification of the terminal is shared by a first user and a second user, and a sum of the first terminal capability and the second terminal capability is greater than the capability specification of the terminal. Hence, when a single user has a service to be executed, an access device may allocate a corresponding resource to the service of the user based on a reported higher terminal capability.

First claim

What is claimed is:

1 . A communication method implemented by a terminal, wherein the communication method comprises:
receiving, from a first access device, a first capability query request to query a first terminal capability corresponding to a first user; sending, to the first access device, a first capability reporting message carrying first indication information of the first terminal capability; receiving, from a second access device, a second capability query request to query a second terminal capability corresponding to a second user; and sending, to the second access device, a second capability reporting message carrying second indication information of the second terminal capability, wherein the first terminal capability and the second terminal capability are less than or equal to a capability specification that is of the terminal, wherein the terminal is a dual-SIM dual-active (DSDA) terminal, wherein the capability specification is shared by the first user and the second user, wherein a sum of the first terminal capability and the second terminal capability is greater than the capability specification, and wherein the capability specification comprises one or more of:
a maximum quantity of cells supported by the terminal for carrier aggregation;
a maximum quantity of multi-input multi-output (MIMO) layers supported by the terminal; or
a supplementary uplink feature of the terminal.

2 . The communication method of claim 1 , further comprising sending, to the first access device, a capability fallback message to reduce the first terminal capability.

3 . The communication method of claim 2 , further comprising sending, to the first access device, the capability fallback message when the first user is executing a first service and the second user initiates a second service.

4 . The communication method of claim 2 , further comprising sending, to the first access device, the capability fallback message when the first user initiates a first service and the second user is executing a second service.

5 . The communication method of claim 2 , wherein the capability fallback message carries first assistance information, and wherein the first assistance information carries one or more pieces of indication information indicating:
a first quantity of cells except a primary cell to which a capability of the terminal is to be reduced; a maximum bandwidth to which the capability is to be reduced at a first low frequency; a maximum bandwidth to which the capability is to be reduced at a first high frequency; a second quantity of downlink MIMO layers to which the capability is to be reduced at a second low frequency; a third quantity of uplink MIMO layers to which the capability is to be reduced at a third low frequency; a fourth quantity of downlink MIMO layers to which the capability is to be reduced at a second high frequency; a fifth quantity of uplink MIMO layers to which the capability is to be reduced at a third high frequency; or that the terminal does not support a supplementary uplink.

6 . The communication method of claim 5 , wherein the first assistance information is UEAssistanceInformation.

7 . The communication method of claim 2 , further comprising sending, to the first access device, a capability restoration message to improve the first terminal capability.

8 . The communication method of claim 7 , wherein the capability restoration message carries second assistance information, and wherein the second assistance information carries one or more pieces of indication information indicating:
a first quantity of cells except a primary cell to which a capability of the terminal is to be increased; a maximum bandwidth to which the capability is to be increased at a first low frequency; a maximum bandwidth to which the capability is to be increased at a first high frequency; a second quantity of downlink MIMO layers to which the capability of the terminal is to be increased at a second low frequency; a third quantity of uplink MIMO layers to which the capability of the terminal is to be increased at a third low frequency; a fourth quantity of downlink MIMO layers to which the capability of the terminal is to be increased at a second high frequency; a fifth quantity of uplink MIMO layers to which the capability of the terminal is to be increased at a third high frequency; and that the terminal supports a supplementary uplink.

9 . The communication method of claim 1 , further comprising sending a sounding reference signal to the first access device through N transmit ports, wherein N is less than a quantity of uplink MIMO layers corresponding to the first user.

10 . The communication method of claim 1 , further comprising sending, to the first access device, channel state information carrying a rank indication, wherein the rank indication indicates that a first quantity of downlink MIMO layers is the same as a value corresponding to the rank indication, and wherein the first quantity is less than or equal to a second quantity of downlink MIMO layers corresponding to the first user.

11 . The communication method of claim 1 , further comprising using a primary cell corresponding to the first user.

12 . The communication method of claim 1 , further comprising sending, to the first access device, a first measurement report, wherein the first measurement report does not comprise a second measurement report of a secondary cell corresponding to the first user.

13 . A terminal comprising:
a memory configured to store instructions; and a processor coupled to the memory and configured to:
receive, from a first access device, a first capability query request to query a first terminal capability corresponding to a first user;
send, to the first access device, a first capability reporting message carrying first indication information of the first terminal capability;
receive, from a second access device, a second capability query request to query a second terminal capability corresponding to a second user; and
send, to the second access device, a second capability reporting message carrying second indication information of the second terminal capability,
wherein the first terminal capability and the second terminal capability are less than or equal to a capability specification of the terminal,
wherein the terminal is a dual-SIM dual-active (DSDA) terminal,
wherein the capability specification is shared by the first user and the second user,
wherein a sum of the first terminal capability and the second terminal capability is greater than the capability specification, and
wherein the capability specification comprises one or more of:
a maximum quantity of cells supported by the terminal for carrier aggregation;
a maximum quantity of multi-input multi-output (MIMO) layers supported by the terminal; or
a supplementary uplink feature of the terminal.

14 . The terminal of claim 13 , wherein the processor is further configured to send, to the first access device, a capability fallback message to reduce the first terminal capability.

15 . The terminal of claim 14 , wherein the processor is further configured to send, to the first access device, the capability fallback message when the first user is executing a first service and the second user needs to initiate a second service.

16 . The terminal of claim 14 , wherein the processor is further configured to send, to the first access device, the capability fallback message when the first user needs to initiate a first service and the second user is executing a second service.

Assignees

• Huawei Tech Co Ltd

Inventors

• Yao Qinbo
• Wang Ruixin
• Zeng Lei

Classifications

• H04W8/183

  Processing at user equipment or user record carrier · CPC title

• H04W8/24 Primary

  Transfer of terminal data · CPC title

• H04W8/22 Primary

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