Self-interference cancellation method, transceiver and communication equipment for shared antenna for transmitting and receiving
A technology of self-interference elimination and shared transmission and reception, which is applied in the directions of pilot signal allocation, multiple use of transmission paths, transmission path sub-channel allocation, etc., can solve the problem that the self-interference signal of the common antenna for transmission and reception cannot be effectively eliminated, and achieve the goal of improving quality Effect
Active Publication Date: 2018-05-11
HUAWEI TECH CO LTD
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[0005] Embodiments of the present invention provide a self-interference elimination method, a transceiver, and communication equipment for a common antenna for transmitting and receiving, so as to solve the problem that self-interference signals cannot be effectively eliminated in the existing common antenna for transmitting and receiving
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[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0069] figure 2 It is a system architecture diagram of Embodiment 1 of a transceiver for transmitting and receiving a shared antenna in the present invention, as shown in figure 2 As shown, the transceiver 200 includes: a transmitter 210, a receiver 220 and a self-interference signal generating device 230, the transmitting channel 211 of the tr...
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Embodiments of the present invention provide a self-interference cancellation method, a transceiver, and a communication device for transmitting and receiving a shared antenna, including: in a self-interference channel measurement time slot, sending a first reference signal on a transmission channel, and sending a first reference signal on a reference signal receiving channel Receive a second reference signal, where the second reference signal is a reference signal after the first reference signal passes through the self-interference signal transmission channel; perform channel estimation according to the first reference signal and the second reference signal, and obtain description information of the self-interference transmission channel; In the data sending and receiving time slot, the first communication signal is sent on the transmission channel, and the second communication signal is received on the communication signal receiving channel. The signal received by the shared antenna is received and received; the self-interference signal is obtained according to the first communication signal and the description information of the self-interference transmission channel, and the self-interference signal is used to eliminate the self-interference of the second communication signal.
Description
technical field [0001] Embodiments of the present invention relate to mobile communication technologies, and in particular to a self-interference elimination method for a shared antenna for transmitting and receiving, a transceiver and a communication device. Background technique [0002] In a mobile cellular communication system, various communication nodes, such as a base station and user equipment (User Equipment, UE for short), all have the ability to send and receive signals. In order to avoid the self-interference between the transmitted signal of the same transceiver and the received signal, the existing technology uses Time Division Duplex (hereinafter referred to as: TDD) or Frequency Division Duplex (hereinafter referred to as: FDD) method. communication. However, FDD and TDD have low spectrum utilization. The wireless full-duplex technology can simultaneously receive and send on the same wireless channel, thereby improving spectrum utilization. However, the wir...
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IPC IPC(8): H04B1/10
CPCH04B1/525H04L5/0048H04L5/1461H04L5/143H04B1/44H04B15/00H04L25/0224
Inventor 刘晟
Owner HUAWEI TECH CO LTD