Sunwave Communications Co., Ltd.

Yingbiao Yao

Xin Chen

Junrong Yan

Peng Pan

Provided in the present invention is a method for avoiding downlink interference between an indoor DAS system and a small base station, the steps comprising: step 1: determining an initial access RU, and establishing a signal strength table; step 2: the DAS system, by means of the chosen RU, attempts to establish a downlink with UE, and detects the signal to interference plus noise ratio (SINR) value of the downlink signal of UE, and comparing same with a preset threshold value &#x3b3;; step 3: UEmaintains one or a plurality of RU downlinks assigned thereto by the DAS system, during the communication process continuously detects an SINR value at a set time interval, and on the basis of whether same is greater than &#x3b3;, ensures a corresponding service quality.

Method for avoiding downlink interference between indoor DAS system and small base station

The present invention provides a method for resisting small base station uplink signal interference of an indoor DAS based on antenna selection. The method comprises: step 1: determining an initial access RU, and establishing an uplink; step 2: determining, by the access RU of UEon the basis of the level of interference, whether to switch to another RU, and continuously detecting, by the access RU of UEan SINR value at a set time interval, and comparing the SINR with a preset threshold value &#x3b3;1; wherein if the SINR value is lower than &#x3b3;1, an MU sets the access RU and each peripheral RU as a candidate RU, and the MU, on the basis of the acquired SINR value of each RU, selects an SINR greater than &#x3b3;1 and sets the RU having the greatest receiving signal power as the new access RU of UE

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Hangzhou, China

Yingbiao Yao