Method for selecting wireless digital relay system and transmission time spacing

A technology of transmission time interval and digital relay, applied in the field of communication, can solve the problems of reducing transmission power, not supporting transmission time interval, unable to optimize transmission efficiency and delay, so as to solve the power supply problem and improve the effect of spectrum utilization.
CN101119153AInactive Publication Date: 2008-02-06ZTE CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2008-02-06
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The present invention discloses a method of wireless digital relay system and transmission time interval selection, which is suitable for time division duplex wireless communication system. The relay system comprises at least a wireless digital repeater, at least a base station, at least a mobile terminal. Linkage between the base station and the wireless digital repeater is divided into a first uplink and a first downlink; the linkage between the wireless digital repeater and the mobile terminal is divided into a second uplink and a second downlink; the linkage between the base station and the mobile terminal is divided into a third uplink and a third downlink; the first uplink and the first downlink adopt the fixed transmission time interval; the second uplink, the second downlink, the third uplink and the third downlink select adaptively the transmission time interval according to the channel quality of corresponding linkage. By supporting flexible transmission interval, the invention uses the optimal transmission time interval in different channel conditions, optimizes transmission efficiency and time delay, and saves transmission power.
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Description

technical field

[0001] The invention relates to the communication field, in particular to a method for flexibly selecting a transmission time interval (Transmit Time Interval, TTI) in a time division duplex wireless communication system. Background technique

[0002] The basic structure of the radio access network (RadioAccess Network, RAN) part of the cellular mobile communication system based on the fixed wireless digital repeater given by the research project IST-2003-507581 WINNERD3.4 established in the European Information Society Technology Research is shown in the figure As shown in 1: several wireless digital repeaters 101a-101n are distributed around the cellular base station 102 in a certain way, and the mobile terminal 103 establishes a communication link with the cellular base station 102 through one or some wireless digital repeaters, as shown in FIG. In 1, a communication link is established with the cellular base station 102 in a two-hop manner through a wirel...

Claims

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