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Multi-mode control station, radio communication system, radio station, and radio communication control method

  • US 8,355,748 B2
  • Filed: 03/07/2005
  • Issued: 01/15/2013
  • Est. Priority Date: 05/28/2004
  • Status: Expired due to Fees
First Claim
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1. A multimode control station included in a different schemes mixing type wireless communication system, the multimode control station compatible with a plurality of types of wireless communication standards by changing functions under a wireless communication environment where communication links using wireless communication schemes conforming to a plurality of types of the wireless communication standards are mixed and used, the different schemes mixing type wireless communication system further including a plurality of wireless stations that carry out communication using a wireless communication scheme conforming to at least one wireless communication standard of the plurality of types of wireless communication standards, wherein:

  • information relating to the communication links used by the plurality of wireless stations is collected; and

    communication resource allocation used in the communication links is decided based on the collected information so that total throughput of wireless communication traffic under the wireless communication environment is improved,wherein;

    one of the communication links used by one of the wireless stations is a wireless communication link between the wireless station and the multimode control station; and

    the multimode control station decides an allocation of the communication resources used in the wireless communication link so that throughput of wireless communication traffic in a wireless communication network including the multimode control station is maximized,wherein the multimode control station comprises;

    a communication link parameter collecting section that collects information relating to the communication links with the plurality of wireless stations;

    a resource allocation deciding section that decides the communication resource allocation used at the wireless communication links with the wireless stations based on the collected information so that throughput of data transmission traffic within the wireless communication network is maximized; and

    a multimode communication section that controls communication conditions for the wireless communication links based on the decided communication resource allocation to the wireless stations, and carries out communication,wherein the resource allocation deciding section decides communication resource allocation used at the wireless communication links with the wireless station by setting an objective function relating to throughput and restriction conditions based on information collected at the communication link parameter collection section and obtaining an optimum combination of control parameters that maximizes an objective function value under the restriction conditions,wherein the resource allocation deciding section uses, as the objective function;

    a function that obtains a total amount of data that can be transmitted per resource allocation period at the communication links with the wireless stations within the wireless communication network; and

    a product of transmission speed used at the communication links with the wireless stations and time for carrying out communication by using the communication links when calculating the total amount of data, the time for carrying out communication using time where time required for switching communication functions by the multimode control station or the multimode wireless station and time required for link connection along with change of the communication scheme are reduced from communication time allocated to the communication link.

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