MICROWAVE TRANSMISSION METHOD, APPARATUS, AND SYSTEM USING CCDP AND XPIC

• US 20120315865A1
• Filed: 08/21/2012
• Published: 12/13/2012
• Est. Priority Date: 03/12/2010
• 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: Zhang, Xuekun
• Granted Patent: US 9,059,767 B2
• Time in Patent Office: Days
• US Class Current: 455/114.2
• CPC Class Codes: H04B 1/126 having multiple inputs, e.g. auxiliary antenna for receiving interfering signal aerials in general H01Q
• CPC Class Codes: H04B 7/063 Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
• CPC Class Codes: H04B 7/10 Polarisation diversity; Directional diversity

Abstract

Embodiments of the present invention disclose a microwave transmission method, apparatus, and system using CCDP and XPIC, and relate to the field of mobile communication technologies. The microwave transmission method includes: sending two channels of service that are corresponding to the same frequency and have different polarization directions, where the two channels of service are paired into one logical group; and when receiving, through a feedback channel, a failure signal sent by another end, closing sending of a channel of service that is indicated by the failure signal. In the embodiments of the present invention, after the failure signal sent by the another end is received, the sending of a channel of the service that is indicated by the failure signal is closed, so that no interference is caused to another channel of service, thus ensuring that another channel of service is received correctly.

Claims

1. A microwave transmission method using Co-Channel Dual Polarization and Cross Polarization Interference Cancellation, the method comprising:

sending two channels of service that are corresponding to the same frequency and have different polarization directions, wherein the two channels of service are paired into one logical group; and

when receiving, through a feedback channel, a failure signal sent by another end, closing sending of a channel of service that is indicated by the failure signal.

2. The microwave transmission method according to claim 1, wherein the logical group is configured with a service identifier for identifying the two channels of service, and the service identifier comprises:

a logical group number, or a co-channel dual polarization polarization direction, or a co-channel dual polarization transmit frequency, or a co-channel dual polarization transmit power, or a co-channel dual polarization attribute, or a cross polarization interference cancellation attribute.

3. A microwave sending apparatus using Co-Channel Dual Polarization and Cross Polarization Interference Cancellation, the apparatus comprising:

a service sending unit, configured to send two channels of service that are corresponding to the same frequency and have different polarization directions, wherein the two channels of service are paired into one logical group;

a failure signal receiving unit, configured to receive, through a feedback channel, a failure signal sent by another end; and

a service closing unit, configured to close sending of a channel of service that is indicated by the failure signal.

4. The microwave sending apparatus according to claim 3, wherein the logical group is configured with a service identifier for identifying the two channels of service, and the service identifier comprises:

a logical group number, or a co-channel dual polarization polarization direction, or a co-channel dual polarization transmit frequency, or a co-channel dual polarization transmit power, or a co-channel dual polarization attribute, or a cross polarization interference cancellation attribute.

5. A microwave transmission method using Co-Channel Dual Polarization and Cross Polarization Interference Cancellation, the method comprising:

receiving two channels of service that are corresponding to the same frequency and have different polarization directions, wherein the two channels of service are paired into one logical group; and

when a service failure is found, sending a failure signal to another end through a feedback channel, so that the another end closes sending of a channel of service that is indicated by the failure signal.

6. The microwave transmission method according to claim 5, wherein the sending the failure signal to the another end through the feedback channel when the service failure is found comprises:

when neither of the two channels of service can be received normally, and one channel of service sends no interference cancellation signal, and a board of the channel of service that sends no interference cancellation signal fails, and a board of the other channel of service does not fail, sending a failure signal to the another end to indicate that the channel of service that sends no interference cancellation signal needs to be closed.

7. The microwave transmission method according to claim 5, wherein the logical group is configured with a service identifier for identifying the two channels of service, and the service identifier comprises:

a logical group number, or a co-channel dual polarization polarization direction, or a co-channel dual polarization transmit frequency, or a co-channel dual polarization transmit power, or a co-channel dual polarization attribute, or a cross polarization interference cancellation attribute.

8. The microwave transmission method according to claim 7, wherein the failure signal is sent through a fed-back microwave frame.

9. A microwave receiving apparatus using Co-Channel Dual Polarization and Cross Polarization Interference Cancellation, the apparatus comprising:

a service receiving unit, configured to receive two channels of service that are corresponding to the same frequency and have different polarization directions, wherein the two channels of service are paired into one logical group; and

a failure signal sending unit, configured to send a failure signal to another end through a feedback channel when a service failure is found, so that the another end closes sending of a channel of service that is indicated by the failure signal.

10. The microwave receiving apparatus according to claim 9, wherein the failure signal sending unit sends the failure signal to the another end through the feedback channel when the service failure is found, which comprises:

when neither of the two channels of service can be received normally, and one channel of the service sends no interference cancellation signal, and a board of the channel of service that sends no interference cancellation signal fails, and a board of the other channel of service does not fail, sending a failure signal to the another end to indicate that the channel of service that sends no interference cancellation signal needs to be closed.

11. The microwave receiving apparatus according to claim 10, wherein the logical group is configured with a service identifier for identifying the two channels of service, and the service identifier comprises:

a logical group number, or a co-channel dual polarization polarization direction, or a co-channel dual polarization transmit frequency, or a co-channel dual polarization transmit power, or a co-channel dual polarization attribute, or a cross polarization interference cancellation attribute.

12. The microwave receiving apparatus according to claim 11, wherein the failure signal is sent through a fed-back microwave frame.

13. A microwave transmission system using Co-Channel Dual Polarization and Cross Polarization Interference Cancellation, the system comprising a microwave sending apparatus and a microwave receiving apparatus, wherein:

the microwave sending apparatus is configured to send two channels of service that are corresponding to the same frequency and have different polarization directions, wherein the two channels of service are paired into one logical group;

the microwave receiving apparatus is configured to receive the two channels of service sent by the microwave sending apparatus, and when a service failure is found, send, through a feedback channel, a failure signal to the microwave sending apparatus; and

after receiving the failure signal, the microwave sending apparatus closes sending of a channel of service that is indicated by the failure signal.

14. The microwave transmission system according to claim 13, wherein the logical group is configured with a service identifier for identifying the two channels of service, and the service identifier comprises:

a logical group number, or a co-channel dual polarization polarization direction, or a co-channel dual polarization transmit frequency, or a co-channel dual polarization transmit power, or a co-channel dual polarization attribute, or a cross polarization interference cancellation attribute.

15. The microwave transmission system according to claim 13, wherein the microwave receiving apparatus sends, when the service failure is found, the failure signal to the microwave sending apparatus through the feedback channel, which comprises:

when neither of the two channels of service can be received normally, and one channel of the service sends no interference cancellation signal, and aboard of the channel of service that sends no interference cancellation signal fails, and a board of the other channel of service does not fail, sending a failure signal to the microwave sending apparatus to indicate that the channel of service that sends no interference cancellation signal needs to be closed.