Multi-Band Multi-Path Receiving and Transmitting Device and Method, and Base Station System

• US 20140364072A1
• Filed: 08/22/2014
• Published: 12/11/2014
• 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 9,124,311 B2
• Time in Patent Office: Days
• US Class Current: 455/84
• 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 are provided. The multi-band multi-path receiving and transmitting device includes at least two multi-frequency couplers, a multi-band transceiver, and a signal processing module. The multi-band transceiver includes at least two first frequency band receiving branches and at least two second frequency band receiving branches, and 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 first multi-frequency coupler;

a second multi-frequency coupler;

a multi-band transceiver coupled with the first multi-frequency coupler and the second multi-frequency coupler, the multi-band transceiver comprising at least two first frequency band receiving branches and at least two second frequency band receiving branches; and

a signal processing module, coupled with the multi-band transceiver;

wherein the first multi-frequency coupler is configured to receive a first frequency band signal and a second frequency band signal from an antenna, and to send the first frequency band signal and the second frequency band signal to the multi-band transceiver,

wherein the second multi-frequency coupler is configured to receive the first frequency band signal and the second frequency band signal from the antenna, and to send the first frequency band signal and the second frequency band signal to the multi-band transceiver,

wherein the at least two first frequency band receiving branches are configured to receive the first frequency band signals from the first multi-frequency coupler and the second multi-frequency coupler, and to send the first frequency band signals to the signal processing module,

wherein the at least two second frequency band receiving branches are configured to receive the second frequency band signals from the first multi-frequency coupler and the second multi-frequency coupler, and to send the second frequency band signals to the signal processing module, and

wherein the signal processing module is configured to receive the first frequency band signals from the at least two first frequency band receiving branches and process the first frequency band signals and also configured to receive the second frequency band signals from the at least two second frequency band receiving branches and process the second frequency band signals.

2. The device according to claim 1, wherein the first and second multi-frequency couplers are located outside of the multi-band transceiver.

3. The device according to claim 1, wherein the multi-band transceiver is a single multi-band transceiver.

4. The device according to claim 3, wherein the at least two first frequency band receiving branches and the at least two second frequency band receiving branches are integrated in the multi-band transceiver.

5. The device according to claim 1, wherein the signal processing module is a baseband processing module configured to perform baseband processing on the first frequency band signals from the at least two first frequency band receiving branches and the second frequency band signals from the at least two second frequency band receiving branches.

6. A method for multi-band multi-path processing, comprising:

receiving, by a first multi-frequency coupler, a first frequency band signal and a second frequency band signal from an antenna, and sending the first frequency band signal and the second frequency band signal to a multi-band transceiver;

receiving, by a second multi-frequency coupler, the first frequency band signal and the second frequency band signal from the antenna, and sending the first frequency band signal and the second frequency band signal to the multi-band transceiver;

receiving, by at least two first frequency band receiving branches in the multi-band transceiver, the first frequency band signals from the first multi-frequency coupler and the second multi-frequency coupler, and sending the first frequency band signals to the signal processing module,

receiving, by at least two second frequency band receiving branches in the multi-band transceiver, the second frequency band signals from the first multi-frequency coupler and the second multi-frequency coupler, and sending the second frequency band signals to the signal processing module, and

processing, by the signal processing module, the first frequency band signals from the at least two first frequency band receiving branches and the second frequency band signals from the at least two second frequency band receiving branches.