Wireless base station device, wireless part control device and wireless communication method
A technology of wireless base station and wireless communication, which is applied in the field of wireless base station device, wireless part control device and wireless communication, and can solve problems such as communication quality degradation
Inactive Publication Date: 2012-09-19
KK TOSHIBA
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Problems solved by technology
[0005] MIMO is expected to increase the speed at the center of the cell, but on the contrary, the degradation of communication quality near the edge of the cell is a problem
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[0021] Hereinafter, a radio base station device, a radio section control device, and a radio communication method according to the present embodiment will be described with reference to the drawings.
[0022] [System Components]
[0023] figure 1 It is an overall configuration diagram of a radio system including a radio base station apparatus according to the present embodiment.
[0024] figure 1 Among them, the gateway device GW is connected to an IP (Internet Protocol) network / public communication network NW and a plurality of wireless base station devices BS1 and BS2. The radio base station apparatus BS1 has a plurality of radio units R11 to R1n that transmit and receive signals by radio, and a radio unit control device G1 that performs radio signal processing and signal distribution. The wireless terminal devices MS11 to MS1m are wireless terminals, or PCs (personal computers) having a data card for wireless communication, or the like. The wireless terminal devices MS1...
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The invention provides a wireless base station device, a wireless part control device and a wireless communication method. The wireless base station device possesses a received power measurement part for measuring received power of uplink signals on wireless terminals of each antenna; an antenna information production part for producing antenna combination information used by macrodiversity communication with the wireless terminals through a plurality of antenna parts; an antenna selection part for receiving power measurement results and information for representing antenna combination to select antenna combination used for wireless communication; an information processing part for controlling the plurality of antenna parts according to the selected antenna combination and a history information management part for accumulating macrodiversity history information which is obtained by establishing corresponding between macrodiversity communication signal quality and the antenna combination. Besides, the antenna information production part updates information of the antenna combination based on the macrodiversity history information.
Description
[0001] Citations for Associated Applications [0002] This application is based on Japanese patent application 2011-50620 (filing date: March 8, 2011), and enjoys the priority right of this application. This application refers to this application, and therefore, the entire content of the same application is included. technical field [0003] Embodiments of the present invention relate to a wireless base station device, a wireless unit control device, and a wireless communication method that perform wireless communication with a wireless terminal. Background technique [0004] In recent years, the sophistication and speed-up of mobile wireless communication systems have progressed, and studies are being made to realize wireless communication with a theoretical speed exceeding 100 Mbps. As a technology for realizing high-speed wireless communication, MIMO (Multiple Input Multiple Output) technology can be cited. In MIMO, the communication speed between a wireless base statio...
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IPC IPC(8): H04B7/02
Inventor 田代太一山本敬治根岸和也
Owner KK TOSHIBA