MULTI-BAND MULTI-PATH RECEIVING AND TRANSMITTING DEVICE AND METHOD, AND BASE STATION SYSTEM

• US 20130273975A1
• Filed: 06/13/2013
• Published: 10/17/2013
• Est. Priority Date: 12/15/2010
• 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: WU, Wangjun, Li, Yulin, Yan, Fengqing, Zhang, Xiaodong, Zhang, Xiwen
• Granted Patent: US 9,130,604 B2
• Time in Patent Office: Days
• US Class Current: 455/562.1
• CPC Class Codes: H04B 1/005 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
• CPC Class Codes: H04B 1/0057 using diplexing or multiplexing filters for selecting the desired band
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04B 1/50 using different frequencies for the two directions of communication

Abstract

A multi-band multi-path receiving and transmitting device and method, and a base station system are provided. The multi-band multi-path receiving and transmitting device includes a broadband antenna, at least two multi-frequency couplers, a multi-band transceiver, and a signal processing module. The multi-band transceiver is adopted to decrease the number of the transceivers, thereby reducing the material cost and the mounting cost of the base station system.

Claims

1. A multi-band multi-path receiving and transmitting device, comprising a broadband antenna, at least two multi-frequency couplers, a multi-band transceiver, and a signal processing module, wherein

the broadband antenna is configured to receive at least a first frequency band signal and a second frequency band signal, and send the first frequency band signal and the second frequency band signal to the at least two multi-frequency couplers;

the at least two multi-frequency couplers comprise a first multi-frequency coupler and a second multi-frequency coupler, the first multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the multi-band transceiver, and the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the multi-band transceiver;

the multi-band transceiver comprises at least two first frequency band receiving branches and at least two second frequency band receiving branches, the at least two first frequency band receiving branches are configured to receive the first frequency band signal sent by the first multi-frequency coupler and the second multi-frequency coupler, and send the first frequency band signal to the signal processing module, and the at least two second frequency band receiving branches are configured to receive the second frequency band signal sent by the first multi-frequency coupler and the second multi-frequency coupler, and send the second frequency band signal to the signal processing module; and

the signal processing module is configured to receive the first frequency band signal sent by the at least two first frequency band receiving branches, and process the first frequency band signal;

and receive the second frequency band signal sent by the at least two second frequency band receiving branches, and process the second frequency band signal.

2. The device according to claim 1, wherein the at least two multi-frequency couplers are built in the multi-band transceiver.

3. The device according to claim 1, wherein the broadband antenna comprises at least one antenna branch, and one of the antenna branches receives at most a transmitted signal transmitted by one transmitting branch at one frequency band of the multi-band transceiver through one multi-frequency coupler.

4. A base station system, comprising a multi-band multi-path receiving and transmitting device, wherein the device comprises a broadband antenna, at least two multi-frequency couplers, a multi-band transceiver, and a signal processing module, wherein

the broadband antenna is configured to receive at least a first frequency band signal and a second frequency band signal, and send the first frequency band signal and the second frequency band signal to the at least two multi-frequency couplers;

the at least two multi-frequency couplers comprise a first multi-frequency coupler and a second multi-frequency coupler, wherein the first multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the multi-band transceiver, and the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the multi-band transceiver;

the multi-band transceiver comprises at least two first frequency band receiving branches and at least two second frequency band receiving branches, the at least two first frequency band receiving branches are configured to receive the first frequency band signal sent by the first multi-frequency coupler and the second multi-frequency coupler, and send the first frequency band signal to the signal processing module, and the at least two second frequency band receiving branches are configured to receive the second frequency band signal sent by the first multi-frequency coupler and the second multi-frequency coupler, and send the second frequency band signal to the signal processing module; and

the signal processing module is configured to receive the first frequency band signal sent by the at least two first frequency band receiving branches, and process the first frequency band signal;

receive the second frequency band signal sent by the at least two second frequency band receiving branches, and process the second frequency band signal.

5. The base station system according to claim 4, wherein the at least two multi-frequency couplers are built in the multi-band transceiver.

6. The base station system according to claim 4, wherein the broadband antenna comprises at least one antenna branch, and one of the antenna branches receives at most a transmitted signal transmitted by one transmitting branch at one frequency band of the multi-band transceiver through one multi-frequency coupler.

7. A multi-band multi-path receiving and transmitting device, comprising a broadband antenna, at least two multi-frequency couplers, two multi-band transceivers, and a signal processing module, wherein

the broadband antenna is configured to receive at least a first frequency band signal and a second frequency band signal, and send the first frequency band signal and the second frequency band signal to the at least two multi-frequency couplers;

the at least two multi-frequency couplers comprise a first multi-frequency coupler and a second multi-frequency coupler, the first multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the two multi-band transceivers, and the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the two multi-band transceivers;

the two multi-band transceivers comprise a first multi-band transceiver and a second multi-band transceiver, the first multi-band transceiver is configured to receive the first frequency band signal and the second frequency band signal sent by the first multi-frequency coupler, and send the first frequency band signal and the second frequency band signal to the signal processing module, and the second multi-band transceiver is configured to receive the first frequency band signal and the second frequency band signal sent by the second multi-frequency coupler, and send the first frequency band signal and the second frequency band signal to the signal processing module; and

the signal processing module is configured to receive the first frequency band signal and the second frequency band signal sent by the first multi-band transceiver, receive the first frequency band signal and the second frequency band signal sent by the second multi-band transceiver, and process the first frequency band signal received and the second frequency band signal received.

8. The device according to claim 7, wherein the first multi-frequency coupler is built in the first multi-band transceiver, and the second multi-frequency coupler is built in the second multi-band transceiver.

9. The device according to claim 7, wherein the broadband antenna comprises at least one antenna branch, and one of the at least one antenna branch receives at most a transmitted signal transmitted by one transmitting branch at one frequency band of one multi-band transceiver through one multi-frequency coupler.

10. A base station system, comprising a multi-band multi-path receiving and transmitting device, wherein the device comprises a broadband antenna, at least two multi-frequency couplers, two multi-band transceivers, and a signal processing module, wherein

the broadband antenna is configured to receive at least a first frequency band signal and a second frequency band signal, and send the first frequency band signal and the second frequency band signal to the at least two multi-frequency couplers;

the at least two multi-frequency couplers comprise a first multi-frequency coupler and a second multi-frequency coupler, wherein the first multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the two multi-band transceivers, and the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the two multi-band transceivers;

the two multi-band transceivers comprise a first multi-band transceiver and a second multi-band transceiver, wherein the first multi-band transceiver is configured to receive the first frequency band signal and the second frequency band signal sent by the first multi-frequency coupler, and send the first frequency band signal and the second frequency band signal to the signal processing module, and the second multi-band transceiver is configured to receive the first frequency band signal and the second frequency band signal sent by the second multi-frequency coupler, and send the first frequency band signal and the second frequency band signal to the signal processing module; and

the signal processing module is configured to receive the first frequency band signal and the second frequency band signal sent by the first multi-band transceiver, receive the first frequency band signal and the second frequency band signal sent by the second multi-band transceiver, and process the first frequency band signal received and the second frequency band signal received.

11. The base station system according to claim 10, wherein the first multi-frequency coupler is built in the first multi-band transceiver, and the second multi-frequency coupler is built in the second multi-band transceiver.

12. The base station system according to claim 10, wherein the broadband antenna comprises at least one antenna branch, and one of the at least one antenna branch receives at most a transmitted signal transmitted by one transmitting branch at one frequency band of one multi-band transceiver through one multi-frequency coupler.

13. A multi-band multi-path receiving and transmitting device, comprising a broadband antenna, at least two multi-frequency couplers, at least two single-band transceivers, and a signal processing module, wherein

the broadband antenna is configured to receive at least a first frequency band signal and a second frequency band signal, and send the first frequency band signal and the second frequency band signal to the at least two multi-frequency couplers;

the at least two multi-frequency couplers comprise a first multi-frequency coupler and a second multi-frequency coupler, the first multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the at least two single-band transceivers respectively, and the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the at least two single-band transceivers respectively;

the at least two single-band transceivers comprise a first frequency band transceiver and a second frequency band transceiver, the first multi-frequency coupler is built in the first frequency band transceiver, and the second multi-frequency coupler is built in the second frequency band transceiver, wherein the first frequency band transceiver comprises at least two first frequency band receiving branches, a first receiving branch group of the first frequency band is configured to receive the first frequency band signal sent by the first multi-frequency coupler, and send the first frequency band signal to the signal processing module, and a second receiving branch group of the first frequency band is configured to receive the first frequency band signal sent by the second multi-frequency coupler, and send the first frequency band signal to the signal processing module;

the second frequency band transceiver comprises at least two second frequency band receiving branches, a first receiving branch group of the second frequency band is configured to receive the second frequency band signal sent by the second multi-frequency coupler, and send the second frequency band signal to the signal processing module, and a second receiving branch group of the second frequency band is configured to receive the second frequency band signal sent by the first multi-frequency coupler, and send the second frequency band signal to the signal processing module; and

the signal processing module is configured to receive the first frequency band signal sent by the first frequency band receiving branch in the first frequency band transceiver, and process the first frequency band signal; and

receive the second frequency band signal sent by the second frequency band receiving branch in the second frequency band transceiver, and process the second frequency band signal.

14. The device according to claim 13, wherein the broadband antenna comprises at least one antenna branch, and one of the antenna branches receives at most a transmitted signal transmitted by one transmitting branch at one frequency band of the multi-band transceiver through one multi-frequency coupler.

15. A base station system, comprising a multi-band multi-path receiving and transmitting device, wherein the device comprises a broadband antenna, at least two multi-frequency couplers, at least two single-band transceivers, and a signal processing module, wherein

the broadband antenna is configured to receive at least a first frequency band signal and a second frequency band signal, and send the first frequency band signal and the second frequency band signal to the at least two multi-frequency couplers;

the at least two multi-frequency couplers comprise a first multi-frequency coupler and a second multi-frequency coupler, wherein the first multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the at least two single-band transceivers respectively, and the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal sent by the broadband antenna, and send the first frequency band signal and the second frequency band signal to the at least two single-band transceivers respectively;

the at least two single-band transceivers comprise a first frequency band transceiver and a second frequency band transceiver, wherein the first multi-frequency coupler is built in the first frequency band transceiver, and the second multi-frequency coupler is built in the second frequency band transceiver, wherein the first frequency band transceiver comprises at least two first frequency band receiving branches, a first receiving branch group of the first frequency band is configured to receive the first frequency band signal sent by the first multi-frequency coupler, and send the first frequency band signal to the signal processing module, and a second receiving branch group of the first frequency band is configured to receive the first frequency band signal sent by the second multi-frequency coupler, and send the first frequency band signal to the signal processing module;

the second frequency band transceiver comprises at least two second frequency band receiving branches, a first receiving branch group of the second frequency band is configured to receive the second frequency band signal sent by the second multi-frequency coupler, and send the second frequency band signal to the signal processing module, and a second receiving branch group of the second frequency band is configured to receive the second frequency band signal sent by the first multi-frequency coupler, and send the second frequency band signal to the signal processing module; and

the signal processing module is configured to receive the first frequency band signal sent by the first frequency band receiving branch in the first frequency band transceiver, and process the first frequency band signal;

receive the second frequency band signal sent by the second frequency band receiving branch in the second frequency band transceiver, and process the second frequency band signal.

16. The base station system according to claim 15, wherein the broadband antenna comprises at least one antenna branch, and one of the antenna branches receives at most a transmitted signal transmitted by one transmitting branch at one frequency band of the multi-band transceiver through one multi-frequency coupler.

17. A multi-band multi-path receiving and transmitting method, comprising:

receiving, by a multi-band transceiver, a first frequency band signal and a second frequency band signal received by a broadband antenna through a first multi-frequency coupler, and receiving a first frequency band signal and a second frequency band signal received by the broadband antenna through a second multi-frequency coupler; and

sending, by the multi-band transceiver, the first frequency band signal and the second frequency band signal received through the first multi-frequency coupler to a signal processing module, and sending the first frequency band signal and the second frequency band signal received through the second multi-frequency coupler to the signal processing module.

18. The method according to claim 17, wherein

the first multi-frequency coupler and the second multi-frequency coupler are built in the multi-band transceiver, and the multi-band transceiver receives first frequency band signals and second frequency band signals received by the broadband antenna through the built-in first multi-frequency coupler and the built-in second multi-frequency coupler.

19. A multi-band multi-path receiving and transmitting method, comprising:

acquiring, by a first frequency band transceiver, a first frequency band signal received by a broadband antenna through a built-in first multi-frequency coupler, acquiring a first frequency band signal received by the broadband antenna through a second multi-frequency coupler built in a second frequency band transceiver, and sending first frequency band signals received through the first multi-frequency coupler and the second multi-frequency coupler to a signal processing module; and

acquiring, by the second frequency band transceiver, a second frequency band signal received by the broadband antenna through the built-in second multi-frequency coupler, acquiring a second frequency band signal received by the broadband antenna through the first multi-frequency coupler built in the first frequency band transceiver, and sending second frequency band signals received through the first multi-frequency coupler and the second multi-frequency coupler to a signal processing module.