Communication method, user equipment, and base station

• US 10,687,318 B2
• Filed: 02/05/2019
• Issued: 06/16/2020
• Est. Priority Date: 08/11/2016
• 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: Xu, Xiaoying, Zheng, Xiaoxiao, Liu, Yalin
• Primary Examiner(s): Shivers, Ashley
• Application Number:
  US16/267,768
• Publication Number:
  US 20190173647A1
• Time in Patent Office: 497 Days
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Embodiments of the present disclosure relate to a communication method, user equipment, and a base station. The method includes: selecting, by user equipment, a DMRS from a demodulation reference signal DMRS list; sending, by the user equipment to a base station through a first channel, first data that carries the DMRS; receiving, by the user equipment through a second channel, second data that is sent by the base station and that carries feedback information, where a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located, or receiving, by the user equipment through a second channel, second data that is sent by the base station and that carries information about a resource on which a third channel is located, where a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located, and receiving, by the user equipment through the third channel, third data that is sent by the base station and that carries feedback information; and determining, by the user equipment, that the feedback information is information fed back by the base station for the first data. In the embodiments of the present disclosure, feedback information of a plurality of user equipments can be distinguished from each other while resource utilization is ensured.

Claims

1. A communication method, comprising:

selecting, by user equipment, a demodulation reference signal (DMRS) from a DMRS list;

sending, by the user equipment to a base station through a first channel, first data that carries the DMRS;

receiving, by the user equipment through a second channel, second data that is sent by the base station and that carries feedback information, wherein a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located; and

determining, by the user equipment, that the feedback information is information fed back by the base station for the first data.

2. The method according to claim 1, wherein selecting, by user equipment, a DMRS from a DMRS list comprises:

randomly selecting, by the user equipment, a DMRS from the DMRS list;

or

selecting, by the user equipment, a DMRS from the DMRS list based on identification information of the user equipment.

3. The method according to claim 1, wherein:

the first data further carries identification information of the user equipment, and the second data further carries the identification information; and

determining, by the user equipment, that the feedback information is information fed back by the base station for the first data comprises;

determining, by the user equipment based on the identification information in the second data, that the feedback information is the information fed back by the base station for the first data.

4. The method according to claim 3, wherein the second data is scrambled according to the identification information.

5. A communication method, comprising:

selecting, by user equipment, a demodulation reference signal (DMRS) from a DMRS list;

sending, by the user equipment to a base station through a first channel, first data that carries the DMRS;

receiving, by the user equipment through a second channel, second data that is sent by the base station and that carries information about a resource on which a third channel is located, wherein a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located, and the second channel and the third channel are different from each other;

receiving, by the user equipment through the third channel, third data that is sent by the base station and that carries feedback information; and

determining, by the user equipment, that the feedback information is information fed back by the base station for the first data.

6. The method according to claim 5, wherein selecting, by user equipment, a DMRS from a DMRS list comprises:

randomly selecting, by the user equipment, a DMRS from the DMRS list;

or

selecting, by the user equipment, a DMRS from the DMRS list based on identification information of the user equipment.

7. The method according to claim 5, wherein:

the first data further carries identification information of the user equipment, and the second data further carries the identification information; and

before receiving, by the user equipment through the third channel, third data that is sent by the base station and that carries feedback information, the method further comprises;

determining, by the user equipment based on the identification information in the second data, that the third channel is a channel used by the base station to send the feedback information to the user equipment.

8. User equipment, comprising:

a processor, configured to select a demodulation reference signal (DMRS) from a DMRS list;

a transmitter, configured to send, to a base station through a first channel, first data that carries the DMRS;

a receiver, configured to receive, through a second channel, second data that is sent by the base station and that carries feedback information, wherein a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located; and

wherein the processor is further configured to determine that the feedback information is information fed back by the base station for the first data.

9. The user equipment according to claim 8, wherein the processor is configured to:

randomly select a DMRS from the DMRS list;

or

select a DMRS from the DMRS list based on identification information of the user equipment.

10. The user equipment according to claim 8, wherein:

the first data further carries identification information of the user equipment, and the second data further carries the identification information; and

the processor is configured to determine, based on the identification information in the second data, that the feedback information is the information fed back by the base station for the first data.