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Mixed self-adaption retransmission method and device

An adaptive, user equipment technology, applied in the direction of error prevention/detection using the return channel, which can solve problems such as PHICH resource collisions

Inactive Publication Date: 2013-09-11
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if the user equipment 30 continues to use the PHICH resource allocation process in LTE Rel-8 / 9 / 10, it will cause the PHICH resources of multiple user equipments to collide

Method used

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  • Mixed self-adaption retransmission method and device
  • Mixed self-adaption retransmission method and device
  • Mixed self-adaption retransmission method and device

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Embodiment Construction

[0047] In the following, the principle and implementation of the present invention will become apparent by describing specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the present invention should not be limited to the specific examples described below. In addition, for the sake of brevity, detailed descriptions of known technologies that are not directly related to the present invention are omitted to prevent confusion to the understanding of the present invention.

[0048] The following takes the evolved version of the LTE Rel-8 / 9 / 10 mobile communication system (such as LTE Rel-11 / 12) as an example application environment, and specifically describes multiple embodiments of the present invention. However, it should be pointed out that the present invention is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as future 5G cellular communication system...

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Abstract

The invention provides a base station which comprises a receiving unit, a first informing unit, a second receiving unit and a second informing unit, wherein the first receiving unit is used for receiving relevant physical mixed self-adaption retransmission indication channel PHICH configuration information from a micro base station, the first informing unit is used for informing a user of the relevant PHICH configuration information through high-level control signals, the second receiving unit is used for receiving uplink modulation information, transmitted by the micro base station, of user equipment, and the second informing unit is used for informing the user equipment of the uplink modulation information through a physical downlink control channel PDCCH or an enhanced physical downlink control channel E-PDCCH. By the adoption of the mixed self-adaption retransmission method and device, the purpose of conducting ACK / NACK feedback on an uplink data receiving end can be realized, and therefore time delay of ACK / NACK feedback can be reduced and the efficiency of a system can be improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication. More specifically, the present invention relates to a hybrid adaptive retransmission method and device for an uplink coordinated multi-point transmission system. Background technique [0002] At the 53rd RAN meeting of the 3rd Generation Partnership Project (3GPP), a working clause on coordinated multipoint transmission was adopted. This term of work proposes to study operations related to uplink coordinated multipoint transmission in homogeneous and heterogeneous network configurations. In addition, at the 67th meeting of 3GPP RAN1, the proposal on uplink coordinated multi-point transmission received attention and was discussed in detail separately. [0003] Among many scenarios of uplink coordinated multipoint transmission, a scenario of uplink and downlink asymmetry has received extensive attention. In actual uplink CoMP transmission, when the user equipment transmits uplink ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16
Inventor 黄磊刘仁茂丁铭
Owner SHARP KK