Transmitter switching method and related apparatuses

Patent metadata

Field	Value
Publication number	US-12185308-B2
Application number	US-202118025334-A
Country	US
Kind code	B2
Filing date	Apr 28, 2021
Priority date	Sep 9, 2020
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

The present disclosure relates to the field of wireless communications, and provides a transmitter switching method, a terminal, a base station, a communication system, a transmitter switching apparatus, and a non-transitory computer readable storage medium. The transmitter switching method includes: a base station sends radio resource control extended signaling to a terminal to instruct a transmitter of the terminal to enter a working mode of time division switching between uplink frequency bands, at least one uplink frequency band having multiple uplink carriers; and the base station sends physical downlink control channel scheduling information to the terminal to instruct the transmitter of the terminal to transmit an uplink frequency band used by uplink data.

First claim

What is claimed is:

1. A transmitter switching method, comprising:
sending, by a base station, to a terminal, a radio resource control extension signaling to indicate a transmitter of the terminal to enter a working mode of time division switching between uplink frequency bands, at least one uplink frequency band of the uplink frequency bands comprising multiple uplink carriers, wherein the uplink frequency bands comprise a first uplink frequency band and a second uplink frequency band; and
in a case where a number of the transmitter of the terminal is two and the transmitter of the terminal comprises a first transmitter and a second transmitter, sending, by the base station, to the terminal, scheduling information via physical downlink control channel to indicate an uplink frequency band of the uplink frequency bands for transmitting an uplink signal by the transmitter of the terminal, comprising one of the following four ways:
the first transmitter and the second transmitter both transmitting the uplink signal on the first uplink frequency band;
the first transmitter and the second transmitter both transmitting the uplink signal on the second uplink frequency band;
the first transmitter transmitting the uplink signal on the first uplink frequency band, and the second transmitter transmitting the uplink signal on the second uplink frequency band; and
the first transmitter transmitting the uplink signal on the first uplink frequency band, and the second transmitter not transmitting the uplink signal.

2. The transmitter switching method according to claim 1 , further comprising:
receiving, by the base station, transmitter switching capability information sent by the terminal, the transmitter switching capability information carrying a number of the transmitter of the terminal and indicating that the transmitter of the terminal supports time division switching between different uplink frequency bands.

3. A transmitter switching method, comprising:
receiving, by a terminal, a radio resource control extension signaling sent by a base station;
controlling, by the terminal, according to an indication of the radio resource control extension signaling, a transmitter to enter a working mode of time division switching between uplink frequency bands, at least one uplink frequency band of the uplink frequency bands comprising multiple uplink carriers, wherein the uplink frequency bands comprise a first uplink frequency band and a second uplink frequency band;
receiving, by the terminal, scheduling information via physical downlink control channel sent by the base station; and
in a case where a number of the transmitter of the terminal is two and the transmitter of the terminal comprises a first transmitter and a second transmitter, controlling, by the terminal, according to an indication of the scheduling information via physical downlink control channel, an uplink frequency band of the uplink frequency bands for transmitting an uplink signal by the transmitter, comprising one of the following four ways:
the first transmitter and the second transmitter both transmitting the uplink signal on the first uplink frequency band;
the first transmitter and the second transmitter both transmitting the uplink signal on the second uplink frequency band;
the first transmitter transmitting the uplink signal on the first uplink frequency band, and the second transmitter transmitting the uplink signal on the second uplink frequency band; and
the first transmitter transmitting the uplink signal on the first uplink frequency band, and the second transmitter not transmitting the uplink signal.

4. The transmitter switching method according to claim 3 , further comprising:
sending, by the terminal, transmitter switching capability information to the base station, the transmitter switching capability information carrying a number of the transmitter of the terminal and indicating that the transmitter of the terminal supports time division switching between different uplink frequency bands.

5. A transmitter switching apparatus, being implemented at a base station and comprising:
a memory; and
a processor coupled to the memory, the processor being configured to perform, based on instructions stored in the memory, the transmitter switching method, comprising:
sending, to a terminal, a radio resource control extension signaling to indicate a transmitter of the terminal to enter a working mode of time division switching between uplink frequency bands, at least one uplink frequency band of the uplink frequency bands comprising multiple uplink carriers, wherein the uplink frequency bands comprise a first uplink frequency band and a second uplink frequency band; and
in a case where a number of the transmitter of the terminal is two and the transmitter of the terminal comprises a first transmitter and a second transmitter, sending, to the terminal, scheduling information via physical downlink control channel to indicate an uplink frequency band of the uplink frequency bands for transmitting an uplink signal by the transmitter of the terminal, comprising one of the following four ways:
the first transmitter and the second transmitter both transmitting the uplink signal on the first uplink frequency band;
the first transmitter and the second transmitter both transmitting the uplink signal on the second uplink frequency band;
the first transmitter transmitting the uplink signal on the first uplink frequency band, and the second transmitter transmitting the uplink signal on the second uplink frequency band; and
the first transmitter transmitting the uplink signal on the first uplink frequency band, and the second transmitter not transmitting the uplink signal.

6. The transmitter switching apparatus according to claim 5 , wherein the transmitter switching method further comprises:
receiving, transmitter switching capability information sent by the terminal, the transmitter switching capability information carrying a number of the transmitter of the terminal and indicating that the transmitter of the terminal supports time division switching between different uplink frequency bands.

7. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium has thereon stored computer instructions which, when executed by a processor, implement the transmitter switching method according to claim 1 .

8. The non-transitory computer-readable storage medium according to claim 7 , wherein the non-transitory computer-readable storage medium is implemented at a base station, and the transmitter switching method further comprises:
receiving transmitter switching capability information sent by the terminal, the transmitter switching capability information carrying a number of the transmitter of the terminal and indicating that the transmitter of the terminal supports time division switching between different uplink frequency bands.

9. A communication system, comprising:
a base station which comprises the transmitter switching apparatus according to claim 5 ; and
a terminal, configured to:
receive a radio resource control extension signaling sent by the base station;
control, according to an indication of the radio resource control extension signaling, a transmitter to enter a working mode of time division switching between uplink frequency bands, at least one uplink frequency band of the uplink frequency bands comprising multiple uplink carriers, wherein the uplink frequency bands comprise a first uplink frequency band and a second uplink frequency band;
receive scheduling information via physical downlink control channel sent by the base station; and
in a case where a number of the transmitter of the terminal is two and th

Assignees

• China Telecom Co Ltd

Inventors

• Yang Shan
• Zhu Jianchi
• Chen Peng
• She Xiaoming
• Liu Bo
• Qiao Xiaoyu

Classifications

• H04W72/232

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

• H04L5/0096

  Indication of changes in allocation · CPC title

• H04W72/0457

  Variable allocation of band or rate · CPC title

• H04L5/1469

  using time-sharing · CPC title

• H04W8/24

  Transfer of terminal data · CPC title