Transmission control device, radiocommunication system, and calibration method
First Claim
1. A transmission control device comprising:
- a memory; and
a processor connected to the memory, whereinthe processor executes a process comprising;
selecting a reference transmission point as a starting point of generating a link from among a plurality of transmission points of which each wirelessly transmits a signal;
sequentially selecting the transmission points one by one for each hierarchy corresponding to a number of hops from the reference transmission point and retrieving satisfying transmission points which satisfy a predetermined criterion of radio quality with a currently selected transmission point; and
generating links between the currently selected transmission point and the satisfying transmission points not yet connected to another transmission point by another link.
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Accused Products
Abstract
A transmission control device includes a memory and a processor connected to the memory. The processor executes a process including: selecting a reference transmission point as a starting point of generating a link from among a plurality of transmission points of which each wirelessly transmits a signal; sequentially selecting the transmission points one by one for each hierarchy corresponding to a number of hops from the selected reference transmission point and retrieving ones of the transmission points for which radio quality between the ones and the selected transmission point satisfies a predetermined criterion; and generating a link between the selected transmission point and a transmission point, among the transmission points obtained as a result at the retrieving, not connected to others of the transmission points to connect the two transmission points.
22 Citations
6 Claims
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1. A transmission control device comprising:
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a memory; and a processor connected to the memory, wherein the processor executes a process comprising; selecting a reference transmission point as a starting point of generating a link from among a plurality of transmission points of which each wirelessly transmits a signal; sequentially selecting the transmission points one by one for each hierarchy corresponding to a number of hops from the reference transmission point and retrieving satisfying transmission points which satisfy a predetermined criterion of radio quality with a currently selected transmission point; and generating links between the currently selected transmission point and the satisfying transmission points not yet connected to another transmission point by another link. - View Dependent Claims (2, 3, 4)
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5. A radio communication system that includes a transmission control device and a plurality of transmission points connected to the transmission control device,
the transmission control device comprising: -
a memory; and a processor connected to the memory, wherein the processor executes a process comprising; selecting a reference transmission point as a starting point of generating a link from among the plurality of transmission points of which each wirelessly transmits a signal; sequentially selecting the transmission points one by one for each hierarchy corresponding to a number of hops from the reference transmission point and retrieving satisfying transmission points which satisfy a predetermined criterion of radio quality with a currently selected transmission point; and generating links between the currently selected transmission point and the satisfying transmission points not connected to another transmission point by another link, and each of the transmission points comprising; a transmitter circuit that performs a radio transmission process on a calibration signal and transmits the calibration signal after the radio transmission process via the generated links; and a receiver circuit that receives a calibration signal via the generated links and performs a radio reception process on the received calibration signal.
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6. A calibration method comprising:
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selecting, using a processor, a reference transmission point as a starting point of generating a link from among a plurality of transmission points of which each wirelessly transmits a signal; sequentially selecting, using the processor, the transmission points one by one for each hierarchy corresponding to a number of hops from the reference transmission point and retrieving, using the processor, satisfying transmission points which satisfy a predetermined criterion of radio quality with a currently selected transmission point; and generating, using the processor, links between the currently selected transmission point and the satisfying transmission points not yet connected to another transmission point by another link; transmitting and receiving a calibration signal via the links generated between the plurality of transmission points; and computing, using the processor, based on a channel estimation result obtained by using the calibration signal, a calibration coefficient calibrating a difference between transmission characteristics of a transmitter circuit and a receiver circuit included in the plurality of transmission points.
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Specification