IP Library › Granted Patent US 11,956,794
Granted Patent B2
US 11,956,794 · App. 17/246,236 · Granted Apr 9, 2024

Data sending and receiving method and communication apparatus

Inventors: Haicun Hang (Shanghai, CN); Shibin Ge (Shanghai, CN); Xiaohan Wang (Shanghai, CN); Liuliu Ji (Shanghai, CN)
Assignee: Huawei Technologies Co., Ltd.
H04W72/23H04W72/1273
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Quick Facts
Patent No.
US 11,956,794
App. No.
17/246,236
Granted
Apr 9, 2024
Kind
B2
Abstract

This application provides a data sending and receiving method. The method includes: receiving, by a terminal device, a first PDCCH and a second PDCCH, where the first PDCCH is used to schedule a first PDSCH, and the first PDSCH is used to transmit first data; determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, where the first resource is a part or all of a resource of the first PDSCH; and receiving, by the terminal device, the first data from a network device on the first resource. The first resource is determined with reference to the first PDCCH and the second PDCCH, to avoid a problem that receiving performance of the first PDSCH and the second PDCCH may deteriorate when a resource of the second PDCCH overlaps the resource of the first PDSCH.

Claims (39)

1. A data receiving method, comprising:

receiving a first physical downlink control channel (PDCCH), wherein the first PDCCH is used to schedule a first physical downlink shared channel (PDSCH), and the first PDSCH is used to transmit first data;

receiving a second PDCCH;

determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, wherein the first resource is a part or all of a resource of the first PDSCH; and

receiving the first data on the first resource, wherein when a resource of the second PDCCH overlaps the resource of the first PDSCH, the determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

determining, as the first resource, a resource other than the second PDCCH in the first PDSCH scheduled by using the first PDCCH by discarding a part of the resource overlapping the second PDCCH.

2. The method according to claim 1 , wherein the second PDCCH is used to schedule a second PDSCH; and when a resource of the second PDSCH overlaps the resource of the first PDSCH, the determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

determining, as the first resource, a resource other than the second PDSCH in the first PDSCH.

3. The method according to claim 1 , wherein the second PDCCH is used to schedule a second PDSCH; and when both a resource of the second PDCCH and a resource of the second PDSCH overlap the resource of the first PDSCH, the determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

determining, as the first resource, a resource other than the second PDCCH and the second PDSCH in the first PDSCH scheduled by using the first PDCCH.

4. The method according to claim 1 , wherein the second PDCCH is used to schedule a second PDSCH; and when neither a resource of the second PDCCH nor a resource of the second PDSCH overlaps the resource of the first PDSCH, the determining, based on the first PDSCH and the second PDCCH, a first resource used to transmit the first data comprises:

determining, as the first resource, the first PDSCH scheduled by using the first PDCCH.

5. The method according to claim 1 , wherein the determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

when the first PDCCH and the second PDCCH meet a preset condition, determining, based on the first PDSCH and the second PDCCH, the first resource used to transmit the first data.

6. The method according to claim 1 , wherein the determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

when the first PDCCH and the second PDCCH do not meet a preset condition, determining, based on the first PDCCH, the first resource used to transmit the first data.

7. A data sending method, comprising:

sending a first physical downlink control channel (PDCCH), wherein the first PDCCH is used to indicate to schedule a first physical downlink shared channel (PDSCH), and the first PDSCH is used to transmit first data;

sending a second PDCCH;

determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, wherein the first resource is a part or all of a resource of the first PDSCH; and

sending the first data on the first resource, wherein when a resource of the second PDCCH overlaps the resource of the first PDSCH, the determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

determining, as the first resource, a resource other than the second PDCCH in the first PDSCH scheduled by using the first PDCCH by discarding a part of the resource overlapping the second PDCCH.

8. A communication apparatus, comprising:

a communication unit, configured to, in coordination with a processing unit, receive a first physical downlink control channel (PDCCH), wherein the first PDCCH is used to schedule a first physical downlink shared channel (PDSCH), and the first PDSCH is used to transmit first data; and further configured to receive a second PDCCH; and

the processing unit further configured to determine, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, wherein the first resource is a part or all of a resource of the first PDSCH, wherein

the communication unit is further configured to receive the first data on the first resource, wherein when a resource of the second PDCCH overlaps the resource of the first PDSCH, the determine, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

determine, as the first resource, a resource other than the second PDCCH in the first PDSCH scheduled by using the first PDCCH by discarding a part of the resource overlapping the second PDCCH.

9. The apparatus according to claim 8 , wherein the second PDCCH is used to schedule a second PDSCH; and when a resource of the second PDSCH overlaps the resource of the first PDSCH, the processing unit is further configured to determine, as the first resource, a resource other than the second PDSCH in the first PDSCH.

10. The apparatus according to claim 8 , wherein the second PDCCH is used to schedule a second PDSCH; and when both a resource of the second PDCCH and a resource of the second PDSCH overlap the resource of the first PDSCH, the processing unit is further configured to: determine, as the first resource, a resource other than the second PDCCH and the second PDSCH in the first PDSCH scheduled by using the first PDCCH.

11. The apparatus according to claim 8 , wherein the second PDCCH is used to schedule a second PDSCH; and when neither a resource of the second PDCCH nor a resource of the second PDSCH overlaps the resource of the first PDSCH, the processing unit is further configured to: determine, as the first resource, the first PDSCH scheduled by using the first PDCCH.

12. The apparatus according to claim 8 , wherein the processing unit is further configured to: when the first PDCCH and the second PDCCH meet a preset condition, determine, based on the first PDSCH and the second PDCCH, the first resource used to transmit the first data.

13. The apparatus according to claim 8 , wherein the processing unit is further configured to: when the first PDCCH and the second PDCCH do not meet a preset condition, determine, based on the first PDCCH, the first resource used to transmit the first data.

14. The apparatus according claim 8 , wherein the apparatus is a chip or a terminal device.

15. A communication apparatus, comprising:

a communication unit, configured to, in coordination with a processing unit send a first physical downlink control channel (PDCCH), wherein the first PDCCH is used to indicate to schedule a first physical downlink shared channel (PDSCH), and the first PDSCH is used to transmit first data; and configured to send a second PDCCH; and

the processing unit, further configured to determine, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, wherein the first resource is a part or all of a resource of the first PDSCH, wherein

the communication unit is further configured to send the first data on the first resource, wherein when a resource of the second PDCCH overlaps the resource of the first PDSCH, the determine, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data comprises:

determine, as the first resource, a resource other than the second PDCCH in the first PDSCH scheduled by using the first PDCCH by discarding a part of the resource overlapping the second PDCCH.

16. The apparatus according claim 15 , wherein the apparatus is a chip or a network device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 20, 2021
From: HANG, HAICUN; GE, SHIBIN; WANG, XIAOHAN; JI, LIULIU
To: HUAWEI TECHNOLOGIES CO., LTD.
Reel/Frame 056920/0370 →
Priority Claims (1)
CN 201811303221.0 · Nov 2, 2018 · national
Continuity (2)
Continuation PCTCN2019114492 · Oct 30, 2019
Related Publication 20210259003A1 · Aug 19, 2021