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Wireless communication system and method, wireless terminal device and wireless base station device

A technology of a wireless communication system and a wireless base station, which is applied in the field of cooperative transmission mode and can solve problems such as residual

Active Publication Date: 2013-09-25
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, how to combine new data packets and retransmission data packets in HARQ with cooperative transmission is not disclosed in the above-mentioned prior art, but remains a problem to be solved

Method used

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  • Wireless communication system and method, wireless terminal device and wireless base station device
  • Wireless communication system and method, wireless terminal device and wireless base station device
  • Wireless communication system and method, wireless terminal device and wireless base station device

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Embodiment Construction

[0056] Hereinafter, preferred embodiments will be described in detail with reference to the drawings.

[0057] First, the system network model on which the embodiment is based will be described.

[0058] figure 1 It is an explanatory diagram of the network model on which the embodiment is based.

[0059] In order not to lose generality, the network is configured as a packet communication system including two wireless base stations that cooperatively serve wireless mobile terminals (UE: User Equipment) such as a mobile phone terminal. The packet communication system can be realized, for example, as an E-UTRA (Evolved Universal Terrestrial Radio Access) system in the LTE communication standard standardized by 3GPP.

[0060] In LTE etc., the base station is called eNode-B (evolved Node B). In the following description of this embodiment, the base station is also represented as an eNode-B, or as an eNB whose description is omitted.

[0061] Such as figure 1 As shown, one of t...

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Abstract

The invention provides a wireless communication system and method, a wireless terminal device and a wireless base station device. In a sending device at a service eNB side, a first group sending part executes the motion of sending a retransmission data group. In a sending device at a cooperation eNB side, and a second group sending part executes the motion of sending a new data group corresponding to the message transmitted from the service eNB side through a group transmission part. The service eNB and the cooperation eNB only utilize a PUCCH from a UE to the service eNB and a PDCCH from the service eNB to the UE for communication according to the control message of the communication of the UE, and the service eNB and the cooperation eNB carry out the communication among the new data group, the communication control message and the like through an X2 interface.

Description

[0001] This application is an invention patent application with the original application number No. 200880131655.5 (international application number: PCT / JP2008 / 003080, filing date: October 28, 2008, invention name: wireless base station device using cooperative HARQ communication mode, wireless Divisional applications for terminal devices, wireless communication systems and wireless communication methods). technical field [0002] The present invention relates to a cooperative transmission technique using distributed antennas. The packet communication technology includes, for example, E-UTRA (Evolved Universal Terrestrial Radio Access) communication technology studied as a next-generation mobile phone communication standard. Background technique [0003] In spread spectrum code division multiple access (Code Division Multiple Access), the following soft handover technology is widely studied: when a mobile terminal moves from one cell to the next cell, the same signal can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00
Inventor 吴建明
Owner FUJITSU LTD