Radio communication apparatus, radio communication system and radio communication method

Radio communication apparatus, radio communication system and radio communication method

Efficiency in data transmission performed in the case of a contention based radio resource being set is improved. A radio communication apparatus (2) selectively performs one of a first transmission method using for data transmission a radio resource which is assigned by a radio communication appara...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Ohta, Yoshiaki, Sugiyama, Katsumasa, Tajima, Yoshiharu, Kawasaki, Yoshihiro, Tanaka, Yoshinori
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:Efficiency in data transmission performed in the case of a contention based radio resource being set is improved. A radio communication apparatus (2) selectively performs one of a first transmission method using for data transmission a radio resource which is assigned by a radio communication apparatus (1) and which can be used on a contention basis by a plurality of radio communication apparatus (2 and 3) and a second transmission method involving random access. Alternatively, the radio communication apparatus (2) selectively performs one of the first transmission method and a third transmission method involving a request made to the radio communication apparatus (1) to assign a radio resource for data transmission.