Radio communication method and radio communication terminal accommodating apparatus

Abstract

A technique capable of improving the communication throughput while maintaining the interchangeability with a radio communication system or radio communication method employing carrier sense in a conventional multiple access system is disclosed and, on the basis of this technique, a radio communication terminal accommodating apparatus determines the allocation order of communication right permitting the occupation of a radio transmission medium with respect to each of a plurality of radio transmission terminals and transmits a multiple-polling signal 311 including information on this order to the plurality of radio communication terminals at an arbitrary transmission timing acquired through the carrier sense. Thus, each of communication right time periods (communication right time periods 312 to 314) for which the occupation of the radio transmission medium is permissible is allocated to each of the plurality of radio communication terminals. In addition, a time sufficiently shorter than a guard time (carrier sense time) in a conventional system is employed as a time interval between communication right time periods adjacent to each other.

Description

TECHNICAL FIELD [0001] The present invention relates to a radio communication method for use in a radio communication system designed to carry out the transmission / reception of data among a plurality of radio communication terminals, and a radio communication terminal accommodating apparatus made to accommodate a plurality of radio communication terminals in the radio communication system. BACKGROUND ART [0002] So far, a radio communication network, designed to conduct the interchange of data among a plurality of radio communication terminals, has been in existence. Radio communication methods for use in this radio communication network are roughly classified into a centralized control type communication method in which a radio communication terminal (which will hereinafter be referred to as a radio communication terminal accommodating apparatus), designed to carry out communication management, exists for giving communication rights to each of radio communication terminals and a dis...

AI Technical Summary

Benefits of technology

[0019] Thus, the radio communication terminal accommodating apparatus can determine the given order of the communication rights with respect to the respective radio communication terminals and can transmit the information indicative of this order at an arbitrary transmission timing acquired through the carrier sense, which optimizes the time interval of the communication right time periods adjacent to each other so that the communication throughput is improvable.

[0048] Still moreover, in accordance with the present invention, a radio communication terminal accommodating apparatus determines a time zone to be allocated as a communication right permitting the occupation of the radio transmission medium with respect to each of the plurality of radio transmission terminals, determines an allocation order of communication right permitting the occupation of the radio transmission medium with respect to each of the plurality of radio transmission terminals and monitors communication in the radio transmission medium to transmit information on the time zone and the order collectively to the plurality of radio communication terminals at an arbitrary timing of a detection of a non-signal time longer than a predetermined length on the communication in the radio transmission medium, with each of the plurality of radio communication terminals being made to acquire communication right to use the radio transmission medium on the basis of the information on the time zone for carrying out communication and subsequently to acquire communication right to use the radio transmission medium on the basis of the information on the order, which enables the radio communication terminal accommodating apparatus to determine the time zone to be given as communication right to each radio communication terminal for transmitting the information on this time zone at an arbitrary transmission timing acquired through the carrier sense, thus optimizing the time interval between the adjoining communication right time periods to improve the communication throughput, and which enables the radio communication terminal accommodating apparatus to determine the order of the communication right to be given thereto subsequently to the setting of the communication right on the time zone to transmit the information on this order at an arbitrary transmission timing acquired through the carrier sense, thereby optimizing the time interval between the adjoining communication right time periods to improve the communication throughput.

Problems solved by technology

The data communication time becomes shorter as the communication time for the guard times and the overheads becomes longer, thereby leading to a decrease in throughput, which produces a great factor of a decrease in throughput of data communications.

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