Radio communication device, radio communication system, and radio communication method
A wireless communication device and channel technology, applied in the field of wireless communication devices and wireless communication systems, can solve the problems of communication capacity pressure and increase, and achieve the effect of suppressing the amount of information
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no. 1 approach
[0105] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. figure 1 It is a schematic block diagram showing the configuration of the base station apparatus 100 according to this embodiment. figure 2 It is a schematic block diagram showing the configuration of the terminal device 200 according to this embodiment.
[0106] The base station apparatus 100 has: an encoding unit 101, a mapping unit 102, a multiplexing unit 103, an IFFT (InverseFast Fourier Transformation: Fast Inverse Fourier Transformation) unit 104, a GI (Guard Interval: guard interval) insertion unit 105, a D / A (Digital -to-Analog) conversion unit 106, wireless transmission unit 107, antenna unit 108, wireless reception unit 109, A / D (Analog-to-Digital) conversion unit 110, demultiplexing unit 111, demapping unit 112, decoding unit 113 , scheduling unit 114 , notification information generating unit 115 , pilot generating unit 116 , and buffering unit (requ...
no. 2 approach
[0130] Figure 9 is a schematic block diagram showing the structure of the base station apparatus 900, Figure 10 It is a schematic block diagram showing the configuration of the terminal device 1000 . In addition, in Figure 9 , Figure 10 In, with respect to the first embodiment ( figure 1 , figure 2 ) are assigned the same symbols because of the same structure, and descriptions are omitted.
[0131] The base station apparatus 900 has: a coding unit 101, a mapping unit 102, a multiplexing unit 103, an IFFT unit 104, a GI insertion unit 105, a D / A conversion unit 106, a radio transmission unit 107, an antenna unit 108, a radio reception unit 109, and an A / D conversion unit 110 , demultiplexing unit 111 , demapping unit 112 , decoding unit 113 , scheduling unit 901 , notification information generation unit 115 , pilot generation unit 116 , and buffer unit (request channel reconfiguration unit) 902 .
[0132]The terminal device 1000 includes: an antenna unit 201, a rad...
no. 3 approach
[0146] In the second embodiment, the case where the update channel selection unit 301 selects the deletion channel and the addition channel based on the evaluation using the threshold is described, but in the third embodiment, a part of the second embodiment is explained. The modification, by limiting (or fixing) the number of updated channels, selects to delete channels and add channels. Figure 13 This is a flowchart of the update channel selection unit 301 in this embodiment.
[0147] First, the channel selection unit 301 is updated, and the reception quality measurement result is read (step S601), and then the used channel information and the reception quality information of the channel are read (step S1202). Next, the update channel selection unit 301 compares the reception quality measurement result read in step S601 with the reception quality information read in step S1202, and calculates the change in the reception quality of the channel to be used (step S1203), M cha...
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