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Radio remote unit selecting method

A technology of remote radio unit and time slot, which is applied in the field of mobile communication, and can solve the problems of complex processing, inability to perform signal and combination, etc.

Inactive Publication Date: 2013-12-04
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the UE sends uplink data in the overlapping coverage area of ​​adjacent RRUs, multiple RRUs will receive the uplink information, and the frequency offset of each signal is also different, so the combination of signals cannot be performed, and each RRU can only receive and process data independently , all RRUs receive uplink data, and the processing is complex

Method used

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Embodiment Construction

[0021] The basic idea of ​​the present invention is that, in a distributed antenna system, one RRU is selected from multiple RRUs in a cell to transmit and receive data, so as to improve data receiving performance and simplify the processing flow.

[0022] In order to make the technical principles, features and technical effects of the technical solution of the present invention clearer, the solution of the present invention will be described in detail below in conjunction with specific embodiments.

[0023] In the high-speed rail communication system, since the data of all users on the high-speed rail is sent and received through the relay equipment on the train, and then communicates with the base station on the ground, it can be considered that there will basically be UE services in each uplink and downlink subframe Data is sent or received, and there is little difference between the uplink and downlink channels.

[0024] After the UE sends uplink data, each RRU in the cell...

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Abstract

The invention provides a radio remote unit (RRU) selecting method. The radio remote unit selecting method comprises the following steps of A, using RRU capable of receiving uplink signals of first user equipment (UE) at uplink time slots to receive uplink subframes from first UE to obtain the uplink channel situation of each of RRU; B, selecting one RRU with the best channel situation from the RRU, wherein the selected RRU is marked as a first RRU; C, using the first RRU to send downlink subframes to the UE at downlink time slots, receive the uplink subframes from the UE at a next uplink time slot and obtain uplink data from the uplink subframes. The radio remote unit selecting method can avoid downlink interference and simplify the uplink treating processes.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for selecting a remote radio unit. Background technique [0002] With the continuous construction and speed-up of China's high-speed railways, high-quality communication on high-speed railways has become an urgent problem to be solved. [0003] The current coverage network of high-speed rail includes Global System for Mobile Communications (GSM), Wideband Code Division Multiple Access (WCDMA) system, Code Division Multiple Access (CDMA) system, etc. These networks have problems such as low transmission data rate, high call drop rate, and poor user experience. The emerging Long-Term Evolution (LTE) system has the characteristics of higher speed, higher spectral efficiency, more flexible carrier bandwidth and better system compatibility, fully meets the needs of broadband wireless access, and truly realizes fixed Therefore, the evolution to LTE is an inevita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/20
Inventor 于小红冯绍鹏
Owner POTEVIO INFORMATION TECH CO LTD