COMMUNICATION APPARATUS AND METHOD, COMPUTER PROGRAM, AND COMMUNICATION SYSTEM

Title:

COMMUNICATION APPARATUS AND METHOD, COMPUTER PROGRAM, AND COMMUNICATION SYSTEM

Document Type and Number:

Japanese Patent JP2010263493

Kind Code:

A

Abstract:

To properly perform communication operation by applying space division multiple access in which a radio resource on a space axis is shared among a plurality of users.

A reverse direction (RD) protocol is applied to a communication system which performs space division multiple access and a spatially multiplexed frame in a transmission opportunity (TXOP) is made further efficient. A frame length of an RD frame is designated from RD permission information and each transmitting side of the RD frame is compliant to the designation to uniform the frame length, thereby stabilizing AGC operation. Furthermore, the time to initiate transmission of the RD frame is designated from the RD permission information and each transmitting side of the RD frame is compliant to the designation, thereby transmitting the RD frame on the same time.

Inventors:

MORIOKA YUICHI
KIMURA RYOTA

Application Number:

JP2009113871A

Publication Date:

November 18, 2010

Filing Date:

May 08, 2009

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Assignee:

SONY CORP

International Classes:

H04W28/18; H04B7/10; H04J99/00; H04W16/28

Domestic Patent References:

JP2006504335A

2006-02-02

Foreign References:

WO2007114374A1	2007-10-11
WO2007114374A1	2007-10-11

Attorney, Agent or Firm:

Masaaki Miyata
Eiji Yamada
Eiji Sasaki
Toshio Sawada
Daido Patent Office

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