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Relay device, communication system, communication control method and integrated circuit

A relay device and wireless control technology, which is applied in wireless communication, electrical components, network traffic/resource management, etc., can solve the problems of inability to obtain wireless handsets, wireless handsets cannot establish direct communication, etc., and achieve the goal of reducing network load Effect

Inactive Publication Date: 2012-06-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In addition, the wireless slave unit that receives the transmission packet from the wireless master unit can also obtain the MAC address of the transmission source terminal and the wireless control station by referring to the frame header included in the packet, but cannot obtain the MAC address of the wireless slave unit connected to the transmission source terminal. address, so direct communication cannot be established between wireless handsets

Method used

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  • Relay device, communication system, communication control method and integrated circuit
  • Relay device, communication system, communication control method and integrated circuit
  • Relay device, communication system, communication control method and integrated circuit

Examples

Experimental program
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Embodiment approach

[0068] Hereinafter, an embodiment of the relay device of the present invention will be described with reference to the drawings.

[0069]

[0070] The relay device of the present invention is as figure 1 As shown, the wireless main unit 2000 as a wireless control station or a plurality of wireless slave units 1000 (1000a, 1000b) exist as a bridge between the content transmission terminal 1 as the transmission source terminal and the content reception terminal as the transmission destination terminal Each of the wireless slave units between 2 will be specifically described below. In addition, the wireless control station is described as an unlimited master.

[0071] In addition, in the description of the following embodiments, it is assumed that the content transmitting terminal 1 starts communication after securing a frequency band in each relay device between communication paths before starting data transmission to the content receiving terminal 2 . In order for each rel...

Embodiment 1

[0193] The processing at the time of transmitting the band setting packet from the content receiving terminal 2 receiving data to the content transmitting terminal 1 will be specifically described with reference to the drawings.

[0194] In addition, the operation of each functional block when the wireless slave unit sends and receives AddTs Request, DLS Request, DLS test request, DirectLink management request, etc. has already been described in the above-mentioned embodiment, so detailed description is omitted.

[0195] Figure 6 It is a diagram showing details of communication between the wireless slave device 1000 a and the wireless slave device 1000 b when the content receiving terminal 2 transmits a frequency band setting packet to the content transmitting terminal 1 .

[0196] As shown in the figure, the wireless slave device 1000b, upon receiving a band setting packet from the content receiving terminal 2, judges whether or not device information is added to the receive...

Embodiment 2

[0209] In addition to the above-mentioned embodiments, the case where the wireless slave unit 1000a and the wireless slave unit 1000b are built in the content transmitting terminal 1 and the content receiving terminal 2, respectively, is also included in the present invention.

[0210] The term "a terminal with a built-in wireless slave device" means, for example, a case where a wireless LAN function is mounted on a board of the terminal in advance.

[0211] Figure 7 It is a diagram showing details of communication of each terminal when a wireless slave unit is built in the terminal. Here, an example is shown in which the content receiving terminal 22 having a built-in wireless handset establishes direct communication with the content transmitting terminal 11 also having a built-in wireless handset. In addition, the detailed operation is substantially the same as that shown in the above-mentioned other embodiment 1, and the only difference is that there is no process of tran...

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Abstract

A relay device transfers transfer data transmitted from a transfer source terminal to a transfer destination terminal via relay by another relay device. When transfer data is received and information on other relay device is added to the transfer data, the relay device establishes a direct communication with the other relay device. Moreover, no information on other relay device is added to the transfer data, information on the local device is added to the transfer data, which is transferred to a radio control station.

Description

technical field [0001] The present invention relates to a relay device that relays data between terminals that transmit and receive data such as content, and performs wireless communication under the control of a wireless control station, and particularly relates to a technique for stably transmitting and receiving data. Background technique [0002] In order to stably transmit real-time data such as video and audio, a terminal that transmits data secures a frequency band in advance and starts data transmission. [0003] Patent Document 1 below describes a technique in which packets for setting a frequency band are sequentially transferred between a source terminal that transmits data and a transfer destination terminal that is a destination of data. The transmission is transmitted to each relay device on the communication path between terminals to secure a frequency band. [0004] In addition, in the IEEE802.11e standard, a technique for realizing QoS control in a wireless...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W88/06
CPCH04W84/18H04W72/04H04W28/20H04W88/04H04W76/14
Inventor 中江宏典太田良隆浮田阳介
Owner PANASONIC CORP