Control Information Transmission Method, Base Station, and User Equipment

• US 20180027541A1
• Filed: 09/15/2017
• Published: 01/25/2018
• Est. Priority Date: 03/16/2015
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wu, Qiang, Qu, Bingyu, Xue, Lixia, Zhou, Yongxing, Zhang, Leiming, Liu, Jianqin, Liu, Kunpeng
• Granted Patent: US 10,492,178 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A control information sending method, a base station, and user equipment are provided. The method includes: sending, by a base station, first control information to first user equipment; transceiving, by the base station, first data to/from the first user equipment according to the first control information; and sending, by the base station, first trigger information to the first user equipment, where the first trigger information is used to indicate that the base station transceives second data to/from the first user equipment according to partial information or all information of the first control information.

Claims

1. A method, comprising:

receiving, by first user equipment, first control information from a base station;

transceiving, by the first user equipment, first data to and from the base station according to the first control information; and

receiving, by the first user equipment, first trigger information from the base station, wherein the first trigger information instructs the first user equipment to transceive second data to and from the base station according to partial information or all information of the first control information.

2. The method according to claim 1, wherein receiving, by the first user equipment, the first trigger information from the base station comprises:

receiving, by the first user equipment, a first control message from the base station, wherein the first control message comprises the first trigger information.

3. The method according to claim 2, wherein the first control message further comprises at least one piece of second trigger information, and the at least one piece of second trigger information and the first trigger information are specific to different user equipments.

4. The method according to claim 3, wherein the first trigger information or each of the at least one piece of second trigger information occupies X bits;

and

wherein a quantity N of the first trigger information or the at least one piece of second trigger information that can be comprised in the first control message makes the following equation true;

5. The method according to claim 2, wherein the first control message further comprises at least one piece of second control information;

and

wherein second user equipment transceives third data to and from the base station according to the at least one piece of second control information.

6. The method according to claim 1, wherein at the same time as the receiving, by the first user equipment, the first trigger information from the base station, the method further comprises:

receiving, by the first user equipment from the base station, at least one of a hybrid automatic repeat request process number, new data indication information, a power control command of a physical uplink control channel, a cyclic shift sequence of a demodulation pilot, a power control command of a physical uplink data channel, a channel quality indicator, or data channel indication information;

wherein the new data indication information indicates whether the second data is initially transmitted data;

wherein the power control command of the physical uplink control channel indicates power of the physical uplink control channel; and

wherein the data channel indication information indicates that the first trigger information is used for the physical uplink data channel or a physical downlink data channel.

7. The method according to claim 6, wherein the first trigger information instructs the first user equipment to transceive the second data to and from the base station according to the partial information of the first control information, and the method further comprises:

transceiving, by the first user equipment, the second data to and from the base station according to partial information of the first control information and at least one of the hybrid automatic repeat request process number, the new data indication information, the power control command of the physical uplink control channel, the cyclic shift sequence of the demodulation pilot, the power control command of the physical uplink data channel, the channel quality indicator, or the data channel indication information that is comprised in the first trigger information;

or

transceiving, by the first user equipment, the second data to and from the base station according to the partial information of the first control information and predefined control information of the first control information, wherein the predefined control information does not include the partial information of the first control information.

8. The method according to claim 1, wherein after receiving, by the first user equipment, the first trigger information from the base station, the method further comprises:

receiving, by the first user equipment, third control information from the base station, wherein the third control information is used by the first user equipment to transceive fourth data to and from the base station according to the third control information.

9. The method according to claim 1, wherein the first control information is the last piece of control information that is associated with the first trigger information and that is received by the first user equipment from the base station before the first user equipment receives the first trigger information from the base station.

10. The method according to claim 1, wherein after transceiving, by the first user equipment, first data to and from the base station according to the first control information, and before receiving, by the first user equipment, the first trigger information from the base station, the method further comprises:

sending, by the first user equipment, an acknowledgement message to the base station, wherein the acknowledgement message notifies the base station that the first user equipment has successfully received the first data according to the first control information.

11. User equipment, comprising:

a receiver, configured to receive first control information from a base station; and

a transceiver, configured to transceive first data to and from the base station according to the first control information;

wherein the receiver is further configured to receive first trigger information from the base station, wherein the first trigger information instructs the transceiver to transceive second data to and from the base station according to partial information or all information of the first control information.

12. The user equipment according to claim 11, wherein receiving the first trigger information from the base station comprises:

receiving, by the receiver, a first control message from the base station, wherein the first control message comprises the first trigger information.

13. The user equipment according to claim 12, wherein the first control message further comprises at least one piece of second trigger information, and the at least one piece of second trigger information and the first trigger information are specific to different user equipment.

14. The user equipment according to claim 13, wherein the first trigger information or each of the at least one piece of second trigger information occupies X bits;

and

wherein a quantity N of the first trigger information or the at least one piece of second trigger information that can be comprised in the first control message makes the following equation true;

15. The user equipment according to claim 12, wherein the first control message further comprises at least one piece of second control information;

and

wherein second user equipment transceives third data to and from the base station according to the at least one piece of second control information.

16. The user equipment according to claim 11, wherein at the same time as the receiver receiving the first trigger information from the base station, the receiver is further configured to receive, from the base station, at least one of a hybrid automatic repeat request process number, new data indication information, a power control command of a physical uplink control channel, a cyclic shift sequence of a demodulation pilot, a power control command of a physical uplink data channel, a channel quality indicator, or data channel indication information;

wherein the new data indication information indicates whether the second data is initially transmitted data;

wherein the power control command of the physical uplink control channel indicates power of the physical uplink control channel, and

wherein the data channel indication information indicates that the first trigger information is used for the physical uplink data channel or a physical downlink data channel.

17. The user equipment according to claim 16, wherein the first trigger information instructs the transceiver to transceive the second data to and from the base station according to the partial information of the first control information, and the user equipment further comprises:

transceiving, by the transceiver, the second data to and from the base station according to the partial information of the first control information and at least one of the hybrid automatic repeat request process number, the new data indication information, the power control command of the physical uplink control channel, the cyclic shift sequence of the demodulation pilot, the power control command of the physical uplink data channel, the channel quality indicator, or the data channel indication information that is comprised in the first trigger information;

or

transceiving, by the transceiver, the second data to and from the base station according to partial information of the first control information and predefined control information of the first control information except the partial information.

18. The user equipment according to claim 11, wherein after the receiver receives the first trigger information from the base station, the receiver is further configured to:

receive third control information from the base station, wherein the third control information is used by the transceiver to transceive fourth data to and from the base station according to the third control information.

19. The user equipment according to claim 11, wherein the first control information is the last piece of control information that is associated with the first trigger information that is received by the receiver from the base station before the receiver receives the first trigger information from the base station.

20. The user equipment according to claim 11, wherein the user equipment further comprises:

a transmitter, configured to;

after the transceiver transceives the first data to and from the base station according to the first control information, and before the receiver receives the first trigger information from the base station, send an acknowledgement message to the base station, wherein the acknowledgement message notifies the base station that the receiver has successfully received the first data according to the first control information.