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

Abstract

The invention relates to a wireless communication technique, in particular to a method, a system and a device for determining a transmission time period and data transmission. The invention avoids the condition of failure of satisfying the data transmission requirements for the relay link in the configuration mode of the LTE TDD frame structure. The method of the embodiment of the invention comprises the following steps: comparing the transmission delay between a transmitter and a receiver with twice of the transmission delay of the receiver transmitting within the radial distance of the cell; and according to the comparison result, determining a transmitting time period in a first GP in a first special subframe corresponding to the transmitter, and a receiving time period in a second GP in a second special subframe corresponding to the receiver, wherein the transmitting time period and the receiving time period have the same length. The method of the embodiment of the invention can apply the LTE TTD frame structure to a TDD relay frame structure, thereby enhancing the system transmission efficiency and the resource utilization ratio.

Description

technical field [0001] 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 [0002] 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 three special subframes DwPTS (downlink pilot time slot), GP (time slot interval) and UpPTS (uplink pilot time slot) form a special subframe (S). Wherein, subframe 0 must be a downlink subframe, and both synchronization signals and non-scheduled broadcast signals (such as MIB) are transmitted in subframe 0; considering uplink and downlin...

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

[0007] 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.

Images