Asymmetric frequency division duplex transceiving system and transceiving method

Abstract

The invention discloses an asymmetric frequency division duplex transceiving system and an asymmetric frequency division duplex transceiving method. The system comprises a single band transmitter band1 and a double band receiver, wherein the double band receiver comprises a first frequency receiver band2 and a second frequency receiver band3; the first frequency receiver band2 is normally communicated with the single band transmitter band1, the switching of the second frequency receiver band3 is controlled by a baseband, and control information is acquired from the first frequency receiver band2; and when downlink signals transmitted by a base station contain the signals of the second frequency receiver band3, the first frequency receiver band2 transmits information to user equipment (UE), and the second frequency receiver band3 is switched on when the UE acquires the information. By the system and the method, asymmetric transmission can be realized. Meanwhile, by adopting a broadband radio-frequency down-conversion scheme, the system and the method have the advantage that power consumption is low compared with a scheme raised by a 3rd generation partnership project (3GPP). By using a block diagram of the invention for designing an integrated circuit chip, optimized design of chip area and power consumption of a transceiver can be realized.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to an information transceiving system, in particular to an asymmetric frequency division duplex transceiving system; in addition, the present invention also relates to a transceiving method of the asymmetric frequency division duplex transceiving system. Background technique [0002] The traditional FDD system allocates the same frequency resources for uplink and downlink, and its technical characteristics are as follows: [0003] 1. One-to-one correspondence between uplink and downlink frequency points. In the existing system, an uplink frequency point and a downlink frequency point fixedly form a frequency pair; [0004] 2. The frequency resources of the uplink and downlink are equal; [0005] 3. A frequency isolation band is required between the uplink and downlink. [0006] For voice applications, the uplink and downlink traffic is symmetrical, so the efficiency ...

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Problems solved by technology

[0005] 3. A frequency isolation band is required between the uplink and downlink

[0015] but image 3 The transceiver scheme shown has some technical defects. First, it does not provide a transceiver implementation scheme; in addition, its receiver adopts a two-way radio frequency receiving scheme, which will increase a lot of chip area and circuit when designing an integrated circuit. power consumption

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