Control channel resource transmission method, user equipment and base station

• US 10,674,496 B2
• Filed: 07/20/2018
• Issued: 06/02/2020
• Est. Priority Date: 03/16/2012
• 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: Xia, Liang, Zhou, Mingyu, Gao, Chi, Tang, Zhenfei
• Primary Examiner(s): Moore, Jr., Michael J
• Application Number:
  US16/041,215
• Publication Number:
  US 20180332570A1
• Time in Patent Office: 683 Days
• Field of Search: None
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server

Abstract

Embodiments of the present invention provide a control channel resource transmission method including: obtaining, by a user equipment, a configuration parameter in a candidate control channel set according to a preset protocol and/or higher-layer signaling sent by a base station, where the higher-layer signaling is used to notify the configuration parameter; determining an antenna port according to the obtained configuration parameter; receiving, by using the antenna port, a control channel or a control channel element sent by the base station; and determining, by the base station, the antenna port according to the same configuration parameter as that of the user equipment, and sending, by using the antenna port, the control channel or the control channel element to the user equipment. The embodiments of the present invention are applicable to control channel resource transmission.

Claims

1. A method comprising:

determining, by a base station, for a candidate control channel in a candidate control channel set, an index of an antenna port of a demodulation reference signal based on an identity of a terminal device and a configuration parameter, wherein the configuration parameter comprises an aggregation level of the candidate control channel; and

sending, by the base station to the terminal device, control information through the candidate control channel using the antenna port corresponding to the index.

2. The method according to claim 1, wherein the configuration parameter further comprises a sequence number of the 1^st control channel element of the candidate control channel associated with the aggregation level.

3. The method according to claim 2, wherein determining the index of an antenna port comprises:

determining, by the base station, for the candidate control channel, the index of the antenna port based on the identity of the terminal device, the configuration parameter, and a predefined mapping relationship among the index of the antenna port, the identity of the terminal device, and the configuration parameter.

4. The method according to claim 3, wherein the mapping relationship is a function.

5. The method according to claim 2, wherein the identity of the terminal device is a radio network temporary identity (RNTI).

6. The method according to claim 1, further comprising sending, by the base station to the terminal device, the identity of the terminal device.

7. An apparatus comprising:

a storage medium having processor-executable instructions stored thereon; and

a processor coupled to the storage medium, wherein the executable instructions, when executed by the processor, cause the processor to;

determine, for a candidate control channel in a candidate control channel set, an index of an antenna port of a demodulation reference signal based on an identity of a terminal device and a configuration parameter, wherein the configuration parameter comprises an aggregation level of the candidate control channel; and

send, by using the antenna port corresponding to the index, control information through the candidate control channel.

8. The apparatus according to claim 7, wherein the configuration parameter further comprises a sequence number of the 1^st control channel element of the candidate control channel associated with the aggregation level.

9. The apparatus according to claim 8, wherein the executable instructions, when executed by the processor, cause the processor to determine the index of an antenna port as follows:

determining, for the candidate control channel, the index of the antenna port based on the identity of the terminal device, the configuration parameter, and a predefined mapping relationship among the index of the antenna port, the identity of the terminal device, and the configuration parameter.

10. The apparatus according to claim 9, wherein the mapping relationship is a function.

11. The apparatus according to claim 8, wherein the identity of the terminal device is a radio network temporary identity (RNTI).

12. The apparatus according to claim 7, the executable instructions, when executed by the processor, further cause the processor to send the identity of the terminal device.

13. A non-transitory computer readable medium, having computer-executable instructions stored thereon, wherein the instructions when executed by a hardware processor, cause the processor to implement operations comprising:

determining, for a candidate control channel in a candidate control channel set, an index of an antenna port of a demodulation reference signal based on an identity of a terminal device and a configuration parameter, wherein the configuration parameter comprises an aggregation level of the candidate control channel in the candidate control channel set; and

sending, by using the antenna port corresponding to the index, control information through the candidate control channel.

14. The non-transitory computer readable medium according to claim 13, wherein

the configuration parameter further comprises a sequence number of the 1^st control channel element of the candidate control channel associated with the aggregation level.

15. The non-transitory computer readable medium according to claim 14, wherein the instructions, when executed by a hardware processor, cause the processor to determine the index of an antenna port as follows:

determining, for the candidate control channel, the index of the antenna port based on the identity of the terminal device, the configuration parameter, and a predefined mapping relationship among the index of the antenna port, the identity of the terminal device, and the configuration parameter.

16. The non-transitory computer readable medium according to claim 15, wherein the mapping relationship is a function.

17. The non-transitory computer readable medium according to claim 14, wherein

the identity of the terminal device is a radio network temporary identity (RNTI).

18. The non-transitory computer readable medium according to claim 13, wherein the instructions when executed by a hardware processor, cause the processor to implement operations further comprising:

sending, by the base station to the terminal device, the identity of the terminal device.