Message exchange method, wireless communication system, wireless terminal, and wireless base station

A message exchange method for communication between a wireless base station and a wireless terminal, comprising:

• transmitting a message parameter from said wireless terminal to said wireless base station, where the message parameter includes a message size indicating a data length of a message to be transmitted from the wireless terminal to the wireless base station;
• transmitting from said wireless terminal to said wireless base station a wireless-bandwidth request signal requesting allocation of a wireless bandwidth for transmission of said message to be transmitted, when a time to transmit the message to be transmitted comes and preparations for transmission of the message to be transmitted are completed;
• allocating to said wireless terminal by said wireless base station a wireless bandwidth corresponding to said message size of said message to be transmitted when the wireless base station receives said wireless-bandwidth request signal;
• transmitting allocation information indicating the allocated wireless bandwidth from said wireless base station to said wireless terminal;
• and
• transmitting said message to be transmitted, from said wireless terminal to said wireless base station by using the wireless bandwidth indicated by said allocation information.

A message exchange method for communication between a wireless base station and a wireless terminal, comprising:

• transmitting a first message parameter and a second message parameter from said wireless terminal to said wireless base station, where the first message parameter includes identification information identifying a trigger message and a message size indicating a data length of a first message to be transmitted from the wireless terminal to the wireless base station, the trigger message is a message to trigger transmission of the first message to be transmitted, and the second message parameter includes a message size indicating a data length of a second message to be transmitted from the wireless terminal to the wireless base station;
• transmitting from said wireless terminal to said wireless base station a wireless-bandwidth request signal requesting allocation of a wireless bandwidth for transmission of said second message to be transmitted, when a time to transmit the second message to be transmitted comes and preparations for transmission of the second message to be transmitted are completed;
• allocating a first wireless bandwidth corresponding to the message size of the first message to be transmitted, to said wireless terminal by said wireless base station when the wireless base station transmits said trigger message to the wireless terminal, and allocating to the wireless terminal by the wireless base station a second wireless bandwidth corresponding to the message size of said second message to be transmitted when the wireless base station receives said wireless-bandwidth request signal;
• transmitting from said wireless base station to said wireless terminal allocation information indicating the allocated wireless bandwidth of said first wireless bandwidth and said second wireless bandwidth;
• and
• transmitting one of said first message to be transmitted and said second message to be transmitted, from said wireless terminal to said wireless base station by using said allocated wireless bandwidth indicated by said allocation information.

A wireless communication system in which wireless message exchange is performed, comprising:

• a wireless terminal including,
• a message-parameter transmission unit which transmits a message parameter to a wireless base station, where the message parameter includes identification information identifying a trigger message and a message size indicating a data length of a message to be transmitted to the wireless base station, and the trigger message is a message to trigger transmission of the message to be transmitted, and
• a message transmission unit which transmits the message to be transmitted to the wireless base station by using a wireless bandwidth which is allocated by the wireless base station and indicated by allocation information after the wireless terminal receives the trigger message and the allocation information from the wireless base station;
• and
• said wireless base station including,
• a trigger-message transmission unit which transmits said trigger message to said wireless terminal,
• a bandwidth allocation unit which allocates to the wireless terminal a wireless bandwidth corresponding to said message size of said message to be transmitted, after the trigger-message transmission unit transmits the trigger message, when the wireless base station receives said message parameter from the wireless terminal, and
• an allocation-information transmission unit which transmits to the wireless terminal said allocation information indicating the first wireless bandwidth allocated by the bandwidth allocation unit.

A wireless communication system in which wireless message exchange is performed, comprising:

• a wireless terminal including,
• a message-parameter transmission unit which transmits a message parameter to a wireless base station, where the message parameter includes a message size indicating a data length of a message to be transmitted to the wireless base station,
• a bandwidth-request transmission unit which transmits to the wireless base station a wireless-bandwidth request signal requesting allocation of a wireless bandwidth for transmission of the message to be transmitted, when a time to transmit the message to be transmitted comes and preparations for transmission of the message to be transmitted are completed, and
• a message transmission unit which transmits the message to be transmitted to the wireless base station by using a wireless bandwidth which is allocated by the wireless base station and indicated by allocation information, when the wireless terminal receives the allocation information from the wireless base station;
• and
• said wireless base station including,
• a bandwidth allocation unit which allocates to the wireless terminal a wireless bandwidth corresponding to said message size of said message to be transmitted, when the wireless base station receives said wireless-bandwidth request signal, and
• an allocation-information transmission unit which transmits to the wireless terminal allocation information indicating the wireless bandwidth allocated by the bandwidth allocation unit.

A wireless communication system in which wireless message exchange is performed, comprising:

• a wireless terminal including,
• a message-parameter transmission unit which transmits a first message parameter and a second message parameter to a wireless base station, where the first message parameter includes identification information identifying a trigger message and a message size indicating a data length of a first message to be transmitted from the wireless terminal to the wireless base station, the trigger message is a message to trigger transmission of the first message to be transmitted, and the second message parameter includes a message size indicating a data length of a second message to be transmitted from the wireless terminal to the wireless base station;
• a bandwidth-request transmission unit which transmits to the wireless base station a wireless-bandwidth request signal requesting allocation of a wireless bandwidth for transmission of the second message to be transmitted, when a time to transmit the second message to be transmitted comes and preparations for transmission of the second message to be transmitted are completed, and
• a message transmission unit which transmits one of the first message to be transmitted and the second message to be transmitted, to the wireless base station by using a wireless bandwidth which is allocated by the wireless base station and indicated by allocation information, when the wireless terminal receives the allocation information;
• and
• said wireless base station including,
• a trigger-message transmission unit which transmits said trigger message to said wireless terminal,
• a bandwidth allocation unit which allocates to the wireless terminal a first wireless bandwidth corresponding to said message size of said first message to be transmitted, after the trigger-message transmission unit transmits the trigger message, and the bandwidth allocation unit allocates to the wireless terminal a second wireless bandwidth corresponding to said message size of said second message to be transmitted, when the wireless base station receives said wireless-bandwidth request signal from said wireless terminal, and
• an allocation-information transmission unit which transmits to the wireless terminal allocation information indicating one of the first wireless bandwidth and the second wireless bandwidth which is allocated by the bandwidth allocation unit.

A wireless base station which wirelessly exchanges messages with a wireless terminal, comprising:

• a trigger-message transmission unit which transmits a trigger message to said wireless terminal, where the trigger message is a message to trigger transmission of a message to be transmitted;
• a bandwidth allocation unit which receives from said wireless terminal a message parameter including identification information identifying said trigger message and a message size indicating a data length of a message to be transmitted, stores the received message parameter in advance, and allocates to the wireless terminal a wireless bandwidth corresponding to the message size of the message to be transmitted, after said trigger-message transmission unit transmits the trigger message;
• and
• an allocation-information transmission unit which transmits to said wireless terminal allocation information indicating the wireless bandwidth allocated by the bandwidth allocation unit.

A wireless terminal which wirelessly exchanges messages with a wireless base station, comprising:

• a message-parameter transmission unit which transmits a message parameter to said wireless base station, where the message parameter includes a message size indicating a data length of a message to be transmitted to the wireless base station;
• a bandwidth-request transmission unit which transmits to said wireless base station a wireless-bandwidth request signal requesting allocation of a wireless bandwidth for transmission of the message to be transmitted, when a time to transmit the message to be transmitted comes and preparations for transmission of the message to be transmitted are completed;
• and
• a message transmission unit which transmits said message to be transmitted to said wireless base station by using a wireless bandwidth which is allocated by the wireless base station and indicated by allocation information, when the wireless terminal receives the allocation information.