Processing method and system for uplink data retransmission

A technology of data retransmission and processing method, applied in the direction of network traffic/resource management, error prevention/detection using return channel, electrical components, etc., can solve the problem of not giving a clear description, etc., and achieve the effect of easy implementation

Inactive Publication Date: 2010-10-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for whether the non-serving eNB participates in the uplink data retransmission and how to participate in the uplink data retransmission when the uplink data retransmission is required, there is no clear description in the existing solutions

Method used

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  • Processing method and system for uplink data retransmission
  • Processing method and system for uplink data retransmission
  • Processing method and system for uplink data retransmission

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Embodiment Construction

[0032] In the present invention, multiple eNBs cooperate to perform CoMP uplink transmission, and when uplink data retransmission is required, the UE performs uplink data retransmission according to the instruction of the serving eNB; the non-serving eNB receives the uplink scheduling information related to retransmission sent by the serving eNB , receive the UE's retransmission uplink data and send it to the serving eNB; when the non-serving eNB has not received the retransmission-related uplink scheduling information sent by the serving eNB, it will not perform operations related to uplink data retransmission. Based on the above solutions, the specific implementation of the present invention can be mainly divided into three implementation manners.

[0033] Implementation method one

[0034] Multiple eNBs cooperate to perform CoMP uplink transmission. When uplink data retransmission is required, uplink data retransmission is only performed between the serving eNB and UE, and ...

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Abstract

The invention discloses a processing method and a processing system for uplink data retransmission. In the scheme of the invention, a plurality of eNBs collaborate to perform CoMP uplink transmission and UE performs the uplink data retransmission according to the instruction of the eNB when the uplink data retransmission is needed; when receiving uplink scheduling information related to the retransmission transmitted by the serving eNB, the non-serving eNB receives the retransmission uplink data of the UE and transmits the data to the serving eNB; and when not receiving the uplink scheduling information related to the retransmission transmitted by the serving eNB, the non-serving eNB does not perform the operation related to the uplink data retransmission. The method has the advantages of making the behaviors of the serving eNB and the non-serving eNB clear, smoothly receiving the retransmission uplink data, solving the problem of the uplink data retransmission during the CoMP uplink transmission of the plurality of collaborative eNBs well, and adapting to the various special uplink data transmission scenes, along with no need of alteration of the uplink data transmission behavior on the UE side, easy implementation, and less required alteration of the LTE system.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a processing method and system for uplink data retransmission based on multi-base station (eNB, EvolvedNodeB) coordinated joint multi-point processing (CoMP, Coordinated Multiple Point). Background technique [0002] In the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) of the third-generation mobile communication Long Term Evolution (LTE, Long Term Evolution) system, the eNB provides each user terminal (UE, User Equipment ) to allocate resources, and the uplink and downlink data are transmitted through the uplink and downlink shared channels. The access technology adopted by E-UTRAN is Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) technology. Compared with the second-generation mobile communication system, the radio resource management of E-UTRAN system ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04L1/18
Inventor 王冠宙张健戴谦陈思
Owner ZTE CORP
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