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Communication method and communication device

A communication method and general packet radio technology, applied in the field of communication methods and communication devices, can solve problems such as decreased user experience, signal transmission delay GP duration, first base station signal interference, etc.

Active Publication Date: 2020-10-30
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, in some practical application scenarios, there may be an atmospheric waveguide between the first base station and the second base station, and the existence of the atmospheric waveguide makes the downlink signal sent by the second base station transmit in the atmospheric waveguide, even after tens or The transmission of hundreds of kilometers still has high signal strength, and, due to the long distance of signal transmission, the signal transmission delay is greater than the preset GP duration, which makes the downlink signal with high signal strength fall into the first base station within the receiving window of the uplink signal, thus causing serious signal interference to the first base station receiving the uplink signal
[0004] The base station interfered by the atmospheric waveguide cannot conduct business or barely maintain business, resulting in a sharp decline in user experience

Method used

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Embodiment Construction

[0058] For the first base station and the second base station in the TDD system, since there is a certain time delay in the process of transmitting the downlink signal from the second base station to the first base station, in order to prevent the downlink signal sent by the second base station from being received by the first base station If the uplink signal causes interference, usually the first base station and the second base station will set a GP for a certain period of time between sending the downlink signal and receiving the uplink signal. If the distance between the first base station and the second base station is relatively close, the transmission time required for the downlink signal of the second base station to be transmitted from the second base station to the first base station is usually less than the set GP time length, so that the downlink signal of the second base station does not will fall into the receiving window of the uplink signal of the first base st...

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Abstract

The embodiment of the invention discloses a communication method and a communication device. The method comprises the steps that a first base station can send first information to a second base station through a core network after determining that the first base station is affected by the atmospheric waveguide interference of the second base station, so as to inform the first base station that thefirst base station generates the atmospheric waveguide interference to the second base station. After the first base station determines that the first base station is interfered by the atmospheric waveguide of the second base station; a second base station is notified in a wired link mode; specifically, first information can be sent to a second base station through a core network, therefore, thereceiving of the first information by the second base station is not easily influenced by the natural environment, so that the success rate of receiving the message sent by the first base station by the second base station can be improved, the second base station can timely perform corresponding interference prevention, and the success rate of eliminating atmospheric waveguide interference can befurther improved.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular, to a communication method and a communication device. Background technique [0002] In a time division duplexing (time division duplexing, TDD) system, a base station uses different time slots of the same frequency channel to receive uplink signals and send downlink signals. Moreover, in order to prevent the downlink signal of the base station from interfering with the uplink signal, a guard period (guard period, GP) of a certain duration is usually set between the base station receiving the uplink signal and sending the downlink signal. [0003] When the first base station in the TDD system is far away from the second base station, the downlink signal sent by the second base station is attenuated during transmission, so that the downlink signal with low signal strength usually does not interfere with the reception of the first base station. Uplink signals sent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W74/08H04L5/00
CPCH04W28/0236H04W74/085H04L5/0048H04L5/0062H04J11/0023H04J11/0056H04W28/0294H04W72/27H04B17/345H04B1/1009H04W24/10
Inventor 杨勇孙铭扬
Owner HUAWEI TECH CO LTD
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