Duplex mode adaptive method and apparatus

• US 9,813,923 B2
• Filed: 02/26/2016
• Issued: 11/07/2017
• Est. Priority Date: 08/27/2013
• 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: Jiang, Hongli, Qing, Huaping, Cao, Ping, Liu, Qiao, Liu, Yu
• Primary Examiner(s): Khajuria, Shripal
• Application Number:
  US15/054,562
• Publication Number:
  US 20160183105A1
• Time in Patent Office: 620 Days
• Field of Search: 370296
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04L 5/143 for modulated signals H04L5/1469 takes precedence
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

The present invention relates to the field of network communications, and discloses a duplex mode adaptive method, including: querying the modulation mode configuration table, to obtain a maximum modulation mode of the current duplex mode and a maximum modulation mode of the non-current duplex mode; calculating maximum spectral efficiency of the current duplex mode according to the maximum modulation mode of the current duplex mode; calculating maximum spectral efficiency of the non-current duplex mode according to the maximum modulation mode of the non-current duplex mode; comparing the maximum spectral efficiency of the current duplex mode with the maximum spectral efficiency of the non-current duplex mode, and selecting a duplex mode whose spectral efficiency is greater as a next-step duplex mode; and switching a duplex mode of the wireless communications apparatus to the next-step duplex mode.

Claims

1. A duplex mode adaptive method, comprising:

obtaining a modulation mode configuration table, self-interference isolation, and information about a transmitted signal and information about a received signal of a wireless communications apparatus;

calculating signal quality of a current duplex mode according to the current duplex mode, the self-interference isolation, and the information about the transmitted signal and the information about the received signal;

predicting signal quality of a non-current duplex mode according to the non-current duplex mode, the self-interference isolation, and the information about the transmitted signal and the information about the received signal;

querying the modulation mode configuration table according to the signal quality of the current duplex mode and the signal quality of the non-current duplex mode, to obtain a maximum modulation mode of the current duplex mode and a maximum modulation mode of the non-current duplex mode;

calculating maximum spectral efficiency of the current duplex mode according to the maximum modulation mode of the current duplex mode, and calculating maximum spectral efficiency of the non-current duplex mode according to the maximum modulation mode of the non-current duplex mode;

comparing the maximum spectral efficiency of the current duplex mode with the maximum spectral efficiency of the non-current duplex mode, and selecting a duplex mode whose spectral efficiency is greater as a next-step duplex mode; and

switching a duplex mode of the wireless communications apparatus to the next-step duplex mode.

2. The method according to claim 1, wherein the current duplex mode is a full duplex mode or a non-full duplex mode.

3. The method according to claim 1, wherein switching a duplex mode of the wireless communications apparatus to the next-step duplex mode comprises:

if the current duplex mode is different from the next-step duplex mode, switching the duplex mode of the wireless communications apparatus to the next-step duplex mode;

otherwise, keeping the current duplex mode unchanged.

4. The method according to claim 1, wherein the information about the transmitted signal and the information about the received signal comprises transmit power of a signal and receive power of a signal.

5. The method according to claim 1, wherein the signal quality comprises a signal-to-noise ratio of an input wanted signal.

6. The method according to claim 1, wherein the signal quality comprises power and a signal-to-interference ratio of an input wanted signal.

7. A duplex mode adaptive apparatus, comprising:

an obtaining unit, configured to obtain a modulation mode configuration table, self-interference isolation, and information about a transmitted signal and information about a received signal of a wireless communications apparatus; and

query the modulation mode configuration table according to signal quality of a current duplex mode and signal quality of a non-current duplex mode, to obtain a maximum modulation mode of the current duplex mode and a maximum modulation mode of the non-current duplex mode;

a calculating unit, configured to;

calculate the signal quality of the current duplex mode according to the current duplex mode, the self-interference isolation, and the information about the transmitted signal and the information about the received signal;

predict the signal quality of the non-current duplex mode according to the non-current duplex mode, the self-interference isolation, and the information about the transmitted signal and the information about the received signal, and

calculate maximum spectral efficiency of the current duplex mode according to the maximum modulation mode of the current duplex mode, and calculate maximum spectral efficiency of the non-current duplex mode according to the maximum modulation mode of the non-current duplex mode;

a selecting unit, configured to compare the maximum spectral efficiency of the current duplex mode with the maximum spectral efficiency of the non-current duplex mode, and select a duplex mode whose spectral efficiency is greater as a next-step duplex mode; and

a switching unit, configured to switch a duplex mode of the wireless communications apparatus to the next-step duplex mode.

8. The apparatus according to claim 7, wherein the current duplex mode is a full duplex mode or a non-full duplex mode.

9. The apparatus according to claim 7, wherein the switching unit comprises:

a determining subunit, configured to determine whether the current duplex mode is the same as the next-step duplex mode; and

a switching subunit, configured to;

if the current duplex mode is different from the next-step duplex mode, switch the duplex mode of the wireless communications apparatus to the next-step duplex mode;

otherwise, keep the current duplex mode unchanged.

10. The apparatus according to claim 7, wherein the information about the transmitted signal and the information about the received signal comprises transmit power of a signal and receive power of a signal.

11. The apparatus according to claim 7, wherein the signal quality comprises a signal-to-noise ratio of an input wanted signal.

12. The apparatus according to claim 7, wherein the signal quality comprises power and a signal-to-interference ratio of an input wanted signal.