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Transmission control method for wireless communication system

A wireless communication system, transmission control technology, applied in diversity/multi-antenna system, using return channel for error prevention/detection, space transmission diversity, etc., can solve error retransmission, cannot identify retransmission process, and cannot retransmit antenna Group Tx#1 and other issues

Active Publication Date: 2011-09-21
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0037] (Problem 1) The receiving apparatus 200 cannot recognize which process the retransmission process "2" should be synthesized with
[0039] (Problem 2) In the transmission device 100, the error retransmission shown in the following cases 1 and 2 occurs
Therefore, the process "2" of the antenna group Tx#2 is erroneously retransmitted, and the process "2" of the antenna group Tx#1 cannot be retransmitted

Method used

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  • Transmission control method for wireless communication system
  • Transmission control method for wireless communication system
  • Transmission control method for wireless communication system

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Embodiment Construction

[0104] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and it is needless to say that various modifications can be made and implemented without departing from the gist of the present invention.

[0105] (A) Explanation of the first embodiment

[0106] figure 1 is a block diagram showing the configuration of the MIMO transmission system according to the first embodiment of the present invention, the figure 1 The illustrated MIMO transmission system is configured to include: at least one transmitting device 1 having a plurality of transmitting antennas (antenna groups) Tx#1, Tx#2, ..., Tx#n; and a plurality of receiving antennas (antenna groups) Group) at least one receiving device 2 of Rx#1, Rx#2, . . . , Rx#n. Also, the transmitting device 1 can be used as a transmitting system of a base station device, and the receiving device 2 can be used as a...

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Abstract

The invention discloses a transmission control method for a wireless communication system. A transmission device (1) adds data block identification information uncompetitive among pieces of stream data to data blocks according to each of a plurality of pieces of stream data, and transmits the data block identification information according to each of the plurality of pieces of stream data; and a receiving device (2) retransmits and synthesizes the received data blocks and retransmitted data blocks to which the same data block identification information is added according to the data block identification information added to the received data blocks. Therefore, even though the number of streams transmitted between the transmission device (1) and the receiving device (2) is changed / decreased, the integrity of the data blocks serving as retransmission and synthesis objects can be maintained, and normal communication can be continued.

Description

[0001] This application is based on Article 42 of the Detailed Rules for the Implementation of the Patent Law. It is the application date of October 27, 2006, and the application number is 200680056206.X. Divisional application. technical field [0002] The present invention relates to a transmission control method, a sending device and a receiving device in a wireless communication system, in particular to a retransmission control technology suitable for MIMO (Multi Input Multi Output) transmission. Background technique [0003] Regarding mobile communication systems such as mobile phones, the third-generation system based on CDMA (Code Division Multiple Access, Code Division Multiple Access) has already begun to serve, and is promoting OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division) Research on a next-generation mobile communication system that realizes faster communication based on the multiple access) method (see Non-Patent Document 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04B7/06
Inventor 太田好明大渕一央川端和生河崎义博田岛喜晴古川秀人
Owner FUJITSU LTD
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