Communication method, system and equipment for hybrid automatic repeat request

Abstract

The embodiment of the invention discloses a communication method, a communication system and communication equipment for a hybrid automatic repeat request. The method comprises the following steps that: network equipment positioned in a service cell acquires a transmission interval under CoMP; the network equipment positioned in the service cell sends CoMP configuration information to UE, the CoMP configuration information carries the transmission interval information under the CoMP, and the UE acquires the transmission interval under the CoMP according to the CoMP configuration information; and the network equipment positioned in the service cell performs data interaction with the UE according to the transmission interval under the CoMP. By expanding the transmission interval of the conventional LTE system, the requirement of data transmission interval under the CoMP technology can also be met under the condition of compatibility with the current LTE processing process, and when the service cell is interacted with a coordinated cell to cause delay, the data transmission can also be performed according to the time requirement specified by a protocol.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a communication method, system and equipment in hybrid automatic repeat request. Background technique [0002] LTE (Long Term Evolution, long-term evolution) is the evolution of 3G (3rd Generation, third-generation digital communication), LTE improves and enhances 3G air access technology, adopts OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) ) and MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) are the only standards for the evolution of the LTE wireless network. With a spectrum bandwidth of 20MHz, LTE can provide a peak rate of downlink 100Mbit / s and uplink 50Mbit / s, improve the performance of cell edge users, increase cell capacity and reduce system delay. Among them, the technical characteristics of LTE include high data rate, packet transmission, low delay, wide area coverage and backward com...

AI Technical Summary

Problems solved by technology

[0018] In the uplink CoMP technology, since the serving cell and the coordinating cell will receive uplink data from the UE at the same time, when the serving cell and the coordinating cell do not belong to the same base station, the serving cell and the coordinating cell need to complete the two through the X2 interface. The communication process between the parties, and the wired transmission of the X2 port will be routed through the core network. At this time, the delay of data transmission cannot be completely ignored. In the uplink CoMP technology, the serving cell needs to The reception status of the two is used to give feedback information, that is, the transmission delay of the X2 port will cause the delay of the network side to feedback to the UE to exceed the time requirement of the HARQ RTT stipulated in the current agreement, resulting in HARQ not being able to follow the agreement. Time required for data transfer

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