Base station apparatus and method of deciding master base station apparatus
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorYutaka Suwa
Life of this patent
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Abstract
Each of the base station apparatuses measures received electric field strength of receivable signals from other base station apparatuses, and superiority in cases of indirectly connecting each of the base station apparatuses to another or other plural base station apparatuses by a route in which one or plural base station apparatuses are interposed and a case of making direct connection between the base station apparatuses are determined based on a measurement result of the received electric field strength and thereby, the base station apparatus used as the highest master is decided.
Claims6
A base station apparatus used in a communication system having a time division communication scheme in which a plurality of base station apparatuses, in operation, synchronize with a master base station apparatus, the base station apparatus comprising:
- a memory,
- a processor coupled to the memory and adapted to:
- a) for each of all pairs of two arbitrary communicable base station apparatuses among the plurality of base station apparatuses, collect parameters concerning received electric field strength of communication between the two arbitrary communicable base station apparatuses;
- b) select each of the plurality of base station apparatuses as a candidate master base station apparatus, and for each of the candidate master base station apparatuses:
- i) compare the collected parameters to set a communication route between the candidate master base station apparatus and each of all other base station apparatuses that are communicable with the candidate master base station apparatus;
- and
- ii) check the number of base station apparatus(es) interposed between the candidate master base station apparatus and each of all other base station apparatuses in each communication route, to determine the maximum number of interposed base station apparatuses;
- c) select a candidate master base station apparatus from the plurality of base station apparatuses evaluated in b) above, which has the smallest maximum number of interposed base station apparatuses, as the master base station apparatus;
- and
- d) notify all others among the plurality of base station apparatuses of information regarding the selected master base station apparatus.
A method of selecting a master base station apparatus used in a communication system having a time division communication scheme, in which a plurality of base station apparatuses, in operation, synchronize with the master base station apparatus, the method being implemented in one of the plurality of base station apparatuses and comprising:
- a) for each of all pairs of two arbitrary communicable base station apparatuses among the plurality of base station apparatuses, collecting parameters concerning received electric field strength of communication between the two arbitrary communicable base station apparatuses;
- b) selecting each of the plurality of base station apparatuses as a candidate master base station apparatus, and for each of the candidate master base station apparatuses:
- i) comparing the collected parameters to set a communication route between the candidate master base station apparatus and each of all other base station apparatuses that are communicable with the candidate master base station apparatus;
- and
- ii) checking the number of base station apparatus(es) interposed between the candidate master base station apparatus and each of all other base station apparatuses in each communication route, to determine the maximum number of interposed base station apparatuses;
- c) selecting a candidate master base station apparatus from the plurality of base station apparatuses evaluated in b) above, which has the smallest maximum number of interposed base station apparatuses, as the master base station apparatus;
- and
- d) notifying all others among the plurality of base station apparatuses of information regarding the selected master base station apparatus.
Dependencies are inferred from the claim text.