Precoding configuration method, device, and system

Patent metadata

Field	Value
Publication number	US-10972159-B2
Application number	US-201916401824-A
Country	US
Kind code	B2
Filing date	May 2, 2019
Priority date	Nov 3, 2016
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

Embodiments of the present disclosure disclose a precoding configuration method, device, and system. The precoding configuration method includes: generating precoding configuration information, where the precoding configuration information is used to configure a width of a frequency band for same precoding; and sending the precoding configuration information. The embodiments of the present disclosure further provide a transmit end device, a receive end device, and the precoding configuration system. In the precoding configuration method provided in the embodiments of the present disclosure, the precoding configuration information is generated and sent, so that a receive end can determine, based on the precoding configuration information, the width of the frequency band for same precoding. In the prior art, the width of the frequency band for same precoding is determined based on only system bandwidth, while the width of the frequency band for same precoding can be flexibly determined in the technical solutions provided in the embodiments of the present disclosure, so that requirements of a wireless communications system can be met in diversified scenarios, and system performance can be effectively optimized in different scenarios.

First claim

What is claimed is:

1. A precoding configuration method, comprising:
generating precoding configuration information for configuring a width of a frequency band for same precoding; and
sending the precoding configuration information, wherein the precoding configuration information comprises a frequency bandwidth parameter and the width of the frequency band for same precoding is equal to the frequency bandwidth parameter multiplied by reference frequency bandwidth.

2. The method according to claim 1 , wherein the reference frequency bandwidth is equal to frequency bandwidth of a resource unit.

3. The method according to claim 1 , wherein the precoding configuration information comprises a width value of the frequency band for same precoding or an index of the width value.

4. The method according to claim 1 , wherein the precoding configuration information comprises an index of a width mapping rule, wherein the width mapping rule records a correspondence between system bandwidth and the width of the frequency band for same precoding.

5. The method according to claim 1 , wherein the precoding configuration information comprises a width update parameter for updating a current width of the frequency band for same precoding.

6. A precoding configuration method, comprising:
receiving precoding configuration information for configuring a width of a frequency band for same precoding; and
determining, based on the precoding configuration information, the width of the frequency band for same precoding, wherein the precoding configuration information comprises a frequency bandwidth parameter; and the determined width of the frequency band for same precoding is equal to the frequency bandwidth parameter multiplied by reference frequency bandwidth.

7. The method according to claim 6 , wherein the reference frequency bandwidth is equal to frequency bandwidth of a resource unit.

8. The method according to claim 6 , wherein:
the precoding configuration information comprises a width value of the frequency band for same precoding or an index of the width value; and
determining, based on the precoding configuration information, the width of the frequency band for same precoding comprises:
determining the width value of the frequency band for same precoding as the width of the frequency band for same precoding, or
determining, based on a correspondence between an index of the width value of the frequency band for same precoding and the width value of the frequency band, the width of the frequency band for same precoding.

9. The method according to claim 6 , wherein:
the precoding configuration information comprises an index of a width mapping rule, and the width mapping rule records a correspondence between system bandwidth and the width of the frequency band for same precoding; and
determining, based on the precoding configuration information, the width of the frequency band for same precoding comprises:
determining the width mapping rule based on the index of the width mapping rule, and
determining, based on the width mapping rule and the system bandwidth, the width of the frequency band for same precoding.

10. The method according to claim 6 , wherein:
the precoding configuration information comprises a width update parameter; and
determining, based on the precoding configuration information, the width of the frequency band for same precoding comprises:
determining, based on the width update parameter, the width of the frequency band for same precoding.

11. A transmit end device, comprising:
a processor configured to generate precoding configuration information for configuring a width of a frequency band for same precoding; and
a transmitter configured to send the precoding configuration information, wherein the precoding configuration information comprises a frequency bandwidth parameter and the width of the frequency band for same precoding is equal to the frequency bandwidth parameter multiplied by reference frequency bandwidth.

12. The transmit end device according to claim 11 , wherein the reference frequency bandwidth is equal to frequency bandwidth of a resource unit.

13. The transmit end device according to claim 11 , wherein the precoding configuration information comprises a width value of the frequency band for same precoding or an index of the width value.

14. The transmit end device according to claim 11 , wherein the precoding configuration information comprises an index of a width mapping rule, and the width mapping rule records a correspondence between system bandwidth and the width of the frequency band for same precoding.

15. The transmit end device according to claim 11 , wherein the precoding configuration information comprises a width update parameter for updating a current width of the frequency band for same precoding.

Assignees

• Huawei Tech Co Ltd

Inventors

• Rong Lu
• Liu Yong
• Wu Lu

Classifications

• H04B7/0623 Primary

  Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information · CPC title

• H04B7/063

  Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection · CPC title

• H04B7/0413 Primary

  MIMO systems · CPC title

• H04B7/06

  at the transmitting station · CPC title

• H04L41/0806

  for initial configuration or provisioning, e.g. plug-and-play · CPC title