MOBILE COMMUNICATION APPARATUS, MAP GENERATING APPARATUS, RESOURCE MANAGEMENT APPARATUS AND WIRELESS STATION MANAGEMENT APPARATUS, FOR USE IN WIRELESS ACCESS SYSTEM
First Claim
1. A mobile communication apparatus, comprising:
- a position detection circuit section configured for detecting a current position of the mobile communication apparatus;
a map acquisition circuit section configured for acquiring a reception quality map expressing a relationship between reception positions at which information can be directly received from a fixed wireless station located at a fixed terrestrial position and direct reception quality index values respectively corresponding to the reception positions, each direct reception quality index value expressing a reception quality obtainable when information is directly received from the fixed wireless station at the corresponding reception position;
a direct quality estimation circuit section configured for estimating the direct reception quality index value corresponding to the current position of the mobile communication apparatus, the estimation based upon the acquired reception quality map and the detected current position of the mobile communication apparatus; and
a reception processing circuit section configured for selecting one of a first reception mode and a second reception mode, the first reception mode being an operating mode in which specific information is received directly from said fixed wireless station and the second reception mode being an operating mode in which a limitation is placed upon receiving the specific information directly from said fixed wireless station.
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Accused Products
Abstract
In a wireless communication system, a mobile communication apparatus judges the reception quality available at its current position for direct reception of information transmitted from a fixed wireless station, with the judgement based upon the current position and upon a reception quality map expressing a relationship between reception positions and corresponding reception quality values. If the reception quality at the current position is judged to be sufficient, direct reception is executed, while otherwise, a limitation is placed upon such direct reception, for example by postponing the direct reception until reaching a position at which the reception quality will be sufficient.
17 Citations
18 Claims
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1. A mobile communication apparatus, comprising:
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a position detection circuit section configured for detecting a current position of the mobile communication apparatus; a map acquisition circuit section configured for acquiring a reception quality map expressing a relationship between reception positions at which information can be directly received from a fixed wireless station located at a fixed terrestrial position and direct reception quality index values respectively corresponding to the reception positions, each direct reception quality index value expressing a reception quality obtainable when information is directly received from the fixed wireless station at the corresponding reception position; a direct quality estimation circuit section configured for estimating the direct reception quality index value corresponding to the current position of the mobile communication apparatus, the estimation based upon the acquired reception quality map and the detected current position of the mobile communication apparatus; and a reception processing circuit section configured for selecting one of a first reception mode and a second reception mode, the first reception mode being an operating mode in which specific information is received directly from said fixed wireless station and the second reception mode being an operating mode in which a limitation is placed upon receiving the specific information directly from said fixed wireless station. - View Dependent Claims (2, 3, 4)
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5. A map generating apparatus comprising:
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a quality information acquisition circuit section configured for receiving respective sets of position quality information and status information from a plurality of mobile communication apparatuses, each mobile communication apparatus being transported by a corresponding vehicle and receiving information directly from a fixed wireless station located at a fixed terrestrial position, each set of position quality information received from a mobile communication apparatus expressing a relationship between positions at which information has been received directly from the fixed wireless station by the mobile communication apparatus and corresponding values of a reception quality index, and each set of status information expressing an installation condition of the mobile communication apparatus in the corresponding vehicle; and a map generating circuit section configured for generating reception quality maps based on the received sets of position quality information and status information. - View Dependent Claims (6, 7, 8)
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9. A resource management apparatus comprising:
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a relay information acquisition circuit section configured for acquiring information identifying respective primary mobile communication apparatuses which each are currently receiving information directly from a fixed wireless station located at a fixed terrestrial position and which each are relaying information from the fixed wireless station to at least one secondary mobile communication apparatus; and an allocation determining circuit section configured for allocating an amount of communication resources to each primary mobile communication apparatus based upon a total number of secondary mobile communication apparatuses which are currently receiving information via the primary mobile communication apparatus.
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10. A wireless station management apparatus comprising:
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a receiving apparatus judgement circuit section configured for judging, with respect to each of a plurality of mobile communication apparatuses, when a mobile communication apparatus is located within an interference area and is receiving information directly from a fixed wireless station, the interference area being an area in which respective communication areas of a plurality of fixed wireless stations mutually overlap, the fixed wireless stations being located at respective fixed terrestrial positions, and an allocation command circuit section configured for supplying commands to the fixed wireless stations designating selective allocation of communication resources to respective ones of the mobile communication apparatuses by the fixed wireless stations, the allocation being executed such that interference between communication resources in the interference area is permitted only when the receiving apparatus judgement circuit section judges that there is no mobile communication apparatus located within the interference area and receiving information directly from one of the fixed wireless station; wherein; when each of one or more mobile communication apparatuses located within the interference area is receiving information from one of the fixed wireless station relayed via a mobile communication apparatus positioned outside the interference area, the receiving apparatus judgement circuit section judges that that there is no mobile communication apparatus which is located within the interference area and receiving information directly from one of the fixed wireless stations.
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11. A wireless access system comprising a fixed wireless station located at a fixed terrestrial position and a plurality of mobile communication apparatuses, the mobile communication apparatuses being each operable in a condition of being transported and capable of receiving information transmitted from the fixed wireless station, each of the mobile communication apparatuses comprising:
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a position detection circuit section configured for detecting a current position of the mobile communication apparatus; a map acquisition circuit section configured for acquiring a reception quality map expressing a relationship between reception positions at which information can be directly received from the fixed wireless station and values of a reception quality index respectively corresponding to the reception positions; a direct quality estimation circuit section configured for estimating the reception quality index value corresponding to direct reception of information from the fixed wireless station at the current position of the mobile communication apparatus, the estimation based upon the acquired reception quality map and the current position detected by the position detection circuit section; and a reception processing circuit section configured for selecting one of a first reception mode and a second reception mode as an operating mode, the selection executed based upon the reception quality index value estimated by the direct quality estimation circuit section, the first reception mode being an operating mode in which information is received directly from said fixed wireless station, the second reception mode being an operating mode in which a limitation is placed upon receiving information directly from said fixed wireless station. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification