Terminal scheduling method and apparatus, base station, and medium

Patent metadata

Field	Value
Publication number	US-2025024462-A1
Application number	US-202418900115-A
Country	US
Kind code	A1
Filing date	Sep 27, 2024
Priority date	Mar 31, 2022
Publication date	Jan 16, 2025
Grant date	—

Abstract

A terminal scheduling method and apparatus, a base station, and a medium are disclosed. In an example method, when a physical downlink control channel (PDCCH) allocated for downlink control information (DCI0) used to schedule a terminal device is located in common search space, and enable uplink 256QAM is configured for the terminal device, the base station determines that a modulation and coding scheme (MCS) index value in the DCI0 is 0. The base station sends the DCI0 to the terminal device through the PDCCH.

First claim

1 . A terminal scheduling method, wherein the method comprises:
when a physical downlink control channel (PDCCH) allocated for downlink control information 0 (DCI0) used to schedule a terminal device is located in common search space, and enable uplink 256QAM is configured for the terminal device, determining, by a base station, that a modulation and coding scheme (MCS) index value in the DCI0 is 0; and sending, by the base station, the DCI0 to the terminal device through the PDCCH.

2 . The method according to claim 1 , wherein before the determining, by a base station, that a modulation and coding scheme (MCS) index value in the DCI0 is 0, the method further comprises:
sending, by the base station, a radio resource control (RRC) reconfiguration message to the terminal device; and receiving, by the base station, an uplink scheduling request of the terminal device, wherein the uplink scheduling request indicates the base station to send the DCI0, so that the terminal device performs modulation and coding based on the DCI0, and uploads an RRC reconfiguration complete message corresponding to the RRC reconfiguration message.

3 . The method according to claim 2 , wherein the RRC reconfiguration message indicates the terminal device to add a secondary cell.

4 . The method according to claim 1 , wherein before the determining, by a base station, that a modulation and coding scheme (MCS) index value in the DCI0 is 0, the method further comprises:
obtaining, by the base station, terminal capability information of the terminal device and channel quality of an uplink channel; determining, by the base station based on the terminal capability information, that the terminal device supports uplink 256QAM and that the channel quality satisfies a preset requirement; and configuring, by the base station, enable uplink 256QAM for the terminal device.

5 . A terminal scheduling apparatus, comprising:
at least one processor; and one or more memories including computer instructions that, when executed by the at least one processor, cause the terminal scheduling apparatus to perform operations comprising: when a physical downlink control channel (PDCCH) allocated for downlink control information 0 (DCI0) used to schedule a terminal device is located in common search space, and enable uplink 256QAM is configured for the terminal device, determining that a modulation and coding scheme (MCS) index value in the DCI0 is 0; and sending the DCI0 to the terminal device through the PDCCH.

6 . The terminal scheduling apparatus according to claim 5 , wherein the operations further comprise:
before the determining that a modulation and coding scheme (MCS) index value in the DCI0 is 0, sending a radio resource control (RRC) reconfiguration message to the terminal device; and receiving an uplink scheduling request of the terminal device, wherein the uplink scheduling request indicates the terminal scheduling apparatus to send the DCI0, so that the terminal device performs modulation and coding based on the DCI0, and uploads an RRC reconfiguration complete message corresponding to the RRC reconfiguration message.

7 . The terminal scheduling apparatus according to claim 6 , wherein the RRC reconfiguration message indicates the terminal device to add a secondary cell.

8 . The terminal scheduling apparatus according to claim 5 , wherein, the operations further comprise:
before the determining that a modulation and coding scheme (MCS) index value in the DCI0 is 0, obtaining terminal capability information of the terminal device and channel quality of an uplink channel; determining based on the terminal capability information, that the terminal device supports uplink 256QAM and that the channel quality satisfies a preset requirement; and configuring enable uplink 256QAM for the terminal device.

9 . A non-transitory computer-readable storage medium, comprising instructions, wherein when the non-transitory computer-readable storage medium runs on a computer, the computer is enabled to perform a terminal scheduling method comprising:
when a physical downlink control channel (PDCCH) allocated for downlink control information 0 (DCI0) used to schedule a terminal device is located in common search space, and enable uplink 256QAM is configured for the terminal device, determining, by a base station, that a modulation and coding scheme (MCS) index value in the DCI0 is 0; and sending, by the base station, the DCI0 to the terminal device through the PDCCH.

10 . The method according to claim 4 , wherein the base station determines that the channel quality satisfies the preset requirement in response to determining that a signal to interference plus noise ratio (SINR) of the uplink channel is greater than a threshold.

11 . The method according to claim 4 , wherein the base station determines that the terminal device supports uplink 256QAM in response to determining that an uplink terminal device-category of the terminal device is an integer between 16 and 20.

12 . The method according to claim 1 , further comprising:
configuring, by the base station, carrier aggregation for the terminal device.

13 . The terminal scheduling apparatus according to claim 8 , wherein determining that the channel quality satisfies the preset requirement comprises:
determining that the channel quality satisfies the preset requirement in response to determining that a signal to interference plus noise ratio (SINR) of the uplink channel is greater than a threshold.

14 . The terminal scheduling apparatus according to claim 8 , wherein determining that the terminal device supports uplink 256QAM comprises:
determining that the terminal device supports uplink 256QAM in response to determining that an uplink terminal device-category of the terminal device is an integer between 16 and 20.

15 . The terminal scheduling apparatus according to claim 5 , wherein the operations further comprise:
configuring carrier aggregation for the terminal device.

16 . The non-transitory computer-readable storage medium according to claim 9 , wherein before the determining, by a base station, that a modulation and coding scheme (MCS) index value in the DCI0 is 0, the terminal scheduling method further comprises:
sending, by the base station, a radio resource control (RRC) reconfiguration message to the terminal device; and receiving, by the base station, an uplink scheduling request of the terminal device, wherein the uplink scheduling request indicates the base station to send the DCI0, so that the terminal device performs modulation and coding based on the DCI0, and uploads an RRC reconfiguration complete message corresponding to the RRC reconfiguration message.

17 . The non-transitory computer-readable storage medium according to claim 16 , wherein the RRC reconfiguration message indicates the terminal device to add a secondary cell.

18 . The non-transitory computer-readable storage medium according to claim 9 , wherein before the determining, by a base station, that a modulation and coding scheme (MCS) index value in the DCI0 is 0, the method further comprises:
obtaining, by the base station, terminal capability information of the terminal device and channel quality of an uplink channel; determining, by the base station based on the terminal capability information, that the terminal device supports uplink 256QAM and that the channel quality satisfies a preset requirement; and configuring, by the base station, enable uplink 256QAM for the terminal device.

19 . The non-transitory

Assignees

• Huawei Tech Co Ltd

Inventors

• Fan Xinyue
• Luo Fei
• Shao Leibing
• Bao Zhengqing

Classifications

• H04L1/0009

  by adapting the channel coding (H04L1/1812 takes precedence) · CPC title

• H04L1/0025

  Transmission of mode-switching indication · CPC title

• H04L27/34

  Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems · CPC title

• H04L1/0004

  applied to control information · CPC title

• H04W72/51

  based on terminal or device properties · CPC title