Wireless communication system, wireless communication apparatus, wireless communication method, and computer program

• US 9,622,271 B2
• Filed: 10/14/2015
• Issued: 04/11/2017
• Est. Priority Date: 05/07/2003
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sugaya, Shigeru, Saito, Shin, Sakoda, Kazuyuki
• Primary Examiner(s): Nguyen, Brian D
• Application Number:
  US14/882,719
• Publication Number:
  US 20160037519A1
• Time in Patent Office: 545 Days
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 74/0816 with collision avoidance
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A wireless communication network that forms an ad-hoc network without the arrangement of a controlling station sets a period that a communication apparatus can utilize with priority and performs isochronous communication in the period as required. When isochronous communication has not been performed or after isochronous communication has finished in the priority utilization period, other communication apparatuses perform arbitrary communication. When another communication is performed in a communication apparatus'"'"'s own priority utilization period, the start of isochronous communication is temporarily delayed. In an ad-hoc communication environment, data having a real-time characteristic, such as AV content, can be efficiently transmitted through the isochronous communication.

Claims

1. A source device comprising:

circuitry configured to;

increase time slots selected for transmitting data from the source device; and

directly transmit the data to a sink device using the selected time slots,

wherein the circuitry is configured to periodically transmit information related to timing of the selected time slots to the sink device continuously, according to whether plural communications of the data is continued, and

wherein the selected time slots are arranged in relation to a slot at which a beacon signal is received from a neighboring communication apparatus.

2. The source device according to claim 1, wherein the information related to timing of the selected time slots is described as beacon information.

3. The source device according to claim 1,

wherein the circuitry is configured to temporarily delay a start of transmitting the data based on a priority utilization period.

4. The source device according to claim 3, wherein information regarding the priority utilization period is described as beacon information transmitted for each predetermined frame period.

5. The source device according to claim 1, wherein the circuitry is configured to collect beacon information from second neighboring communication apparatuses and not set, as a priority utilization period of the source device, a period that is set as a priority utilization period by the second neighboring communication apparatuses.

6. The source device according to claim 1, wherein the circuitry is configured to collect beacon information from second neighboring communication apparatuses and set, as a priority utilization period of the source device, a period that is not set as priority utilization periods by the second neighboring communication apparatuses.

7. The source device according to claim 1, wherein the circuitry is configured to obtain information regarding a priority utilization period from another communication apparatus and set, as a priority utilization period of the source device, a period that is not set as priority utilization periods by neighbors of the source device.