Wireless communication system and communication control method
A technology of wireless communication system and control device, which is applied in wireless communication, radio transmission system, diversity/multi-antenna system, etc., can solve the problems of not yet proposed communication steps, not proposed, antenna selection, etc., so as to improve frequency utilization efficiency, reduce Small differences, the effect of improving communication quality
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no. 1 Embodiment approach
[0060] figure 1 It is a diagram showing the network configuration of the wireless communication system according to the first embodiment.
[0061] The wireless communication system of the first embodiment includes a gateway 111, a modem control unit 112, baseband modems 106-1, 106-2, ... (hereinafter referred to simply as 106 when there is no need to distinguish the baseband modems), and an RRU (Remote Radio Unit: remote wireless unit) 108-1, 108-2, . The radio communication system of this embodiment has a plurality of baseband modems 106 , but may have one baseband modem 106 . Furthermore, the wireless communication system according to the present embodiment has a plurality of RRUs 108 , but when there are a plurality of baseband modems 106 , one RRU 108 may be provided for each baseband modem 106 .
[0062] The gateway 111 is a node that connects the core network 110 and the radio access network (lower layer of the gateway 111 ) and terminates the radio access network, an...
no. 2 Embodiment approach
[0203] Figure 22 It is a diagram showing the network configuration of the radio communication system according to the second embodiment of the present invention.
[0204] The wireless communication system of the second embodiment is different from the wireless communication system of the first embodiment in which the baseband modem 106 and the RRU 108 are connected in a predetermined correspondence relationship, in that a modem-RRU switch 113 is provided between the baseband modem 106 and the RRU 108 . In addition, only the differences from the aforementioned first embodiment will be described regarding the second embodiment, and the description of the same configuration and processing as those of the aforementioned first embodiment will be omitted.
[0205] The modem-inter-RRU switch 113 switches the switch according to the instruction from the modem control unit 112 to switch the connection between one or more antenna ports of the baseband modem 106 and the RRU 108 . The w...
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