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Method of performing retransmissions via different transmission points and related communication device

A technology of transmit point and retransmission, applied in the direction of error prevention/detection, location diversity, transmission system, etc. using the return channel, which can solve the problems such as the inability to achieve coordinated multipoint transmission diversity and the inability to output rate at the user end.

Inactive Publication Date: 2013-01-23
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diversity supported by CoMP cannot be achieved under the constraints of requiring the same transmit point to perform retransmissions
As a result, the client's output rate cannot be maximized when coordinating multicast / receive operations

Method used

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  • Method of performing retransmissions via different transmission points and related communication device
  • Method of performing retransmissions via different transmission points and related communication device
  • Method of performing retransmissions via different transmission points and related communication device

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Embodiment Construction

[0041] Please refer to figure 1 , figure 1 It is a schematic diagram of a wireless communication system 10 according to an embodiment of the present invention, which is briefly composed of 7 transmission points (transmission points) TP1-TP7 and a user end (user equipment, UE), wherein each transmission point can communicate with a user communication (such as data transmission and reception). The wireless communication system 10 is preferably a Universal Mobile Telecommunications System (UMTS) using Wideband Code Division Multiple Access (WCDMA). Alternatively, the wireless communication system 10 may adopt Orthogonal Frequency-Division Multiplexing (OFDM) and / or Orthogonal Frequency-Division Multiple Access (OFDMA) Long Term Evolution (Long Term Evolution, LTE) system, long-term evolution-advanced (LTE-Advanced, LTE-A) system, or the successor of the long-term evolution-advanced system. In addition, the user end and the transmission points TP1-TP7 can operate a hybrid autom...

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Abstract

A method of performing a retransmission of a packet from a plurality of transmission points in a wireless communication system to a mobile device of the wireless communication system is disclosed. The method comprises transmitting the packet from a first transmission point of the plurality of transmission points to the mobile device in a first transmission; and transmitting the packet from a second transmission point of the plurality of transmission points to the mobile device in a second transmission, after transmitting the packet from the first transmission point in the first transmission, wherein the first transmission point and the second transmission point are different transmission points.

Description

technical field [0001] The present invention relates to a method for a wireless communication system and its communication device, in particular to a method for performing retransmission through different transmission points and its communication device for a wireless communication system. Background technique [0002] In order to improve the Universal Mobile Telecommunications System (UMTS), the 3rd Generation Partnership Project (3GPP) has formulated a Long Term Evolution (LTE) system with better performance. Support the 3rd Generation Partnership Project Release 8 (3GPP Rel-8) standard and / or the 3rd Generation Partnership Project Release 9 (3GPP Rel-9) standard to meet the increasing needs of users. The LTE system is regarded as a new wireless interface and wireless network structure that provides high data transmission rate, low latency, packet optimization, and improved system capacity and coverage. It consists of a plurality of evolved base stations (evolved Node -Bs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16
CPCH04B7/024H04L1/1893H04L1/1819H04L1/16
Inventor 何从廉杨华龙颜嘉邦
Owner IND TECH RES INST