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Wireless communication system and wireless communication method

A wireless communication system and wireless communication technology, applied in the field of wireless communication, can solve problems such as inability to retransmit antenna group Tx#1, inability to identify retransmission process, error retransmission, etc.

Active Publication Date: 2018-09-28
FUJITSU LTD
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  • 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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  • Wireless communication system and wireless communication method
  • Wireless communication system and wireless communication method
  • Wireless communication system and wireless communication method

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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) 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 receiv...

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Abstract

The invention provides a wireless communication system and a wireless communication method. The wireless communication system comprises a sending device and a receiving device, wherein the sending device is provided with a plurality of sending antennas for MIMO transmission of multiple data blocks; the receiving device receives the data blocks. The sending device is used for transmitting process serial numbers to the receiving device through a control channel different from a data channel, and when MIMO diversity transmission is carried out, the receiving device carries out an HARQ process in the received data blocks according to the process serial numbers received from the sending device instead of process serial numbers used for preventing competition among the data blocks.

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 wireless communication system and a wireless communication method in the wireless communication system, in particular to a retransmission control technology suitable for MIMO (Multi Input Multi Output) transmission. Background technique [0003] With regard to mobile communication systems such as mobile phones, the third-generation system based on CDMA (Code Division Multiple Access) has already begun to serve, and OFDMA (Orthogonal Frequency Division Multiple Access) is being promoted. Research on a next-generation mobile communication system that realizes faster communication based on the method of address access) (refer to Non-Patent Document 1 described later). [0004] Therefore, MIMO ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
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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