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Wireless communication device and wireless communication method therefor

A wireless communication device and technology of the device, applied in the directions of wireless communication, diversity/multi-antenna system, space transmit diversity, etc., can solve the problems of erroneous data retransmission, data reception failure, wireless terminal data reception failure, etc.

Pending Publication Date: 2022-02-08
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, when the access point that implements the retransmission decision fails to receive a reception signal (ACK or block ACK) from the wireless terminal, the wireless terminal considers the data reception to have failed
Therefore, in this case, even when the wireless terminal receives all the data of the joint communication, the wireless terminal still considers that the data reception has failed, and wrongly decides to retransmit the same data

Method used

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  • Wireless communication device and wireless communication method therefor
  • Wireless communication device and wireless communication method therefor
  • Wireless communication device and wireless communication method therefor

Examples

Experimental program
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Embodiment Construction

[0054] Modes for carrying out the invention (hereinafter referred to as embodiments) will be described hereinafter. Description will be made in the following order.

[0055] 1. First embodiment (instance of sharing block ACK with another access point)

[0056] 2. Second embodiment (an example of retransmitting a block ACK from a wireless terminal)

[0057] 3. The third embodiment (an example in which retransmission is determined according to an instruction from the dominant access point)

[0058] 4. Modify the instance

[0059]

[0060] wireless communication system

[0061] figure 1 is a diagram showing one example of the overall configuration of a wireless communication system according to one embodiment of the technology of the present invention.

[0062] It is assumed that the wireless communication system includes a plurality of access points (AP: base station) 101 (AP#1) and 102 (AP#2) and at least one wireless terminal 200 (STA). Assuming here that wireless term...

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Abstract

The present invention makes it possible to avoid the occurrences of wasteful data transfers and wait times in cooperative transmission using access points. A wireless communication device according to the present invention is provided with a communication control unit and a signal generation unit. The communication control unit generates control information for requesting communication result information regarding whether or not reception at a transmission destination device has been successful when first cooperative communication has been performed in cooperation with another wireless communication device. The signal generation unit generates a signal including the control information generated by the communication control unit as a signal urging second cooperative communication in cooperation with another wireless communication device.

Description

technical field [0001] The techniques of the present invention relate to wireless communication devices that implement data transmission. Specifically, the technology of the present invention relates to a wireless communication device that performs data transmission in cooperation with other wireless communication devices and a processing method thereof. Background technique [0002] In recent years, environments where multiple access points (APs) of a wireless local area network (LAN) are placed in stadiums or at home have been increasing. In such an environment, a technique called multi-AP coordination aimed at joint improvement of system throughput or improved reliability between access points has gained attention. In joint transmission, which is one of the techniques, multiple access points perform joint communication on one wireless terminal (STA: Station) using Multiple Input Multiple Output (MIMO) technology. With this technology, multi-dimensional spatial multiplex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/28H04W28/04H04W28/16
CPCH04L1/1864H04L1/1685H04L1/1614H04W84/12H04B7/024H04W72/27H04L1/1671
Inventor 相尾浩介田中健
Owner SONY CORP