Method, system and apparatus for determining transmission time period and data transmission

Abstract

The invention relates to a wireless communication technique, particularly relates to a method, a system and an apparatus for determining a transmission time period and data transmission, and is used for avoiding a situation that the uses of different radio links occupy different time slots in a TDD (Time Division Duplex) frame structure due to the introducing of a relay node. The method of the embodiment of the invention comprises the following steps of: comparing transmission delay between a relay device and a base station with the double of the transmission delay of the base station on a distance of a radius of a cell in which the base station is located; determining a sending time period in a first data time period in a first MBSFN (Multiple Broadcast Singe Frequency Network) sub-frame corresponding to the relay device and a receiving time period in a second data time period in a second MBSFN sub-frame corresponding to the base station according to the comparing result, wherein the length of the sending time period is equal to that of the receiving time period. According to the method provided by the embodiment of the invention, an access link region between the base station and a terminal and a relay region between the base station and the relay node can be enabled to coexist at the same time slot, so that the use ratio of the radio resource is improved.

Description

[0001] The application of the present invention is a divisional application of the invention application with the filing date of February 20, 2009, the application number of 200910078414.5, and the invention title of "Method, system and device for determining transmission time period and data transmission". technical field [0002] The present invention relates to wireless communication technology, in particular to a method, system and device for determining a transmission time period and data transmission. Background technique [0003] In the current LTE (Long Term Evolution, long-term evolution) system specification, the frame structure of the TDD (Time division duplex, time division duplex) mode is as follows: figure 1 As shown, the LTE TDD frame structure, each 10ms radio frame includes two half-frames (half-frame), each half-frame contains five 1ms subframes (subframe), each subframe can be divided into two 0.5ms Ordinary time slot (slot) or 3 special subframes DwPTS (d...

AI Technical Summary

Problems solved by technology

For the configuration of the LTE TDD frame structure, configuration 0 and configuration 2 have only one uplink or downlink subframe in the 5ms period half frame, and configuration 5 has only one uplink or downlink subframe in the 10ms period wireless frame, which cannot meet the data transmission requirements of the relay link

[0008] At present, if the amount of uplink data to be sent in MBSFN (Multiple Broadcast Single Frequency Network) subframes is relatively large, the transmission delay of uplink data will be increased, and the requirements for data transmission may not be met.

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