Collocation method and device of backhaul link in long term evolution system

Abstract

The invention discloses a collocation method of a backhaul link in a long term evolution system, comprising the following steps of: collocating a relay subframe into a multicast single frequency network (MBSFN) subframe on a downlink access link when the relay subframe is collocated at a network side, and collocating a unicast subframe on a downlink backhaul link. The invention also discloses a collocation device of the backhaul link in the long term evolution system, comprising a collocation unit which is used for collocating the relay subframe into the multicast single frequency network (MBSFN) subframe on the downlink access link and collocating the unicast subframe on a downlink backhaul link. The invention improves the communication efficiency of the backhaul link and the access flexibility of UE in a cell covered by a base station.

Description

technical field [0001] The present invention relates to a configuration technology of a backhaul link in a Long Term Evolution (LTE, Long Term Evolution) system, in particular to a configuration method and device for a backhaul link of a relay subframe in the Long Term Evolution system. Background technique [0002] Relay (Relay) technology, as an emerging technology, has attracted more and more attention, and is regarded as a key technology of B3G (Beyond 3G) / 4G. Since future wireless communication or cellular systems require increased coverage and support for higher rate transmission, this poses new challenges to wireless communication technology. At the same time, the cost of system construction and maintenance is more prominent. With the increase of transmission rate and communication distance, the problem of battery energy consumption has become more prominent, and future wireless communication will use higher frequencies, resulting in more serious path loss attenuatio...

AI Technical Summary

Problems solved by technology

Generally, while the relay station is receiving the transmission signal from the base station, if the relay station is also transmitting signals to the UE, it will cause interference between the transmitting end and the receiving end of the relay station itself, which will cause serious deterioration of communication quality

Therefore, when the RS communicates with the base station, it cannot send data to the cells under its control at the same time, that is to say, the RS cannot send and receive data on a subframe at the same time.

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