BAND CONTROL METHOD AND COMMUNICATION APPARATUS
First Claim
1. A band control method for controlling a frequency band which a first communication apparatus and a second communication apparatus use at data transmission, whereinfrequency bands which said first communication apparatus and said second communication apparatus use at data transmission are different frequency bands, the band control method comprising the steps of:
- a bandwidth presumption step for presuming a first bandwidth required by said first communication apparatus at data transmission and a second bandwidth required by said second communication apparatus at data transmission;
a bandwidth comparison step for comparing said first bandwidth with a first bandwidth used which said first communication apparatus currently uses and comparing said second bandwidth with a second bandwidth used which said second communication apparatus currently uses; and
a bandwidth used determination step for adjusting said first bandwidth and said second bandwidth according to comparison results obtained by said bandwidth comparison step and for determining a third bandwidth used by said first communication apparatus at data transmission and a fourth bandwidth used by said second communication apparatus at data transmission.
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Accused Products
Abstract
The present invention intends to improve communication efficiency between two communication apparatuses each engaged in the communication by full duplex communication method by using a surplus band of the one to transmission band of the other. A first bandwidth required by a first communication apparatus (A) at data transmission and a second bandwidth required by a second communication apparatus (B) at data transmission are presumed. Next, the first bandwidth presumed as mentioned is compared to a first bandwidth used which the first communication apparatus (A) currently uses and at the same time, the second bandwidth presumed as mentioned is compared to a second bandwidth used which the second communication apparatus (B) currently uses. The first bandwidth and the second bandwidth are then adjusted, and a third bandwidth which the first communication apparatus (A) uses at data transmission and a fourth bandwidth which the second communication apparatus (B) uses are determined.
37 Citations
22 Claims
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1. A band control method for controlling a frequency band which a first communication apparatus and a second communication apparatus use at data transmission, wherein
frequency bands which said first communication apparatus and said second communication apparatus use at data transmission are different frequency bands, the band control method comprising the steps of: -
a bandwidth presumption step for presuming a first bandwidth required by said first communication apparatus at data transmission and a second bandwidth required by said second communication apparatus at data transmission; a bandwidth comparison step for comparing said first bandwidth with a first bandwidth used which said first communication apparatus currently uses and comparing said second bandwidth with a second bandwidth used which said second communication apparatus currently uses; and a bandwidth used determination step for adjusting said first bandwidth and said second bandwidth according to comparison results obtained by said bandwidth comparison step and for determining a third bandwidth used by said first communication apparatus at data transmission and a fourth bandwidth used by said second communication apparatus at data transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communication apparatus for performing data transmission by controlling frequency band when data transmission is performed with other communication apparatus, wherein
frequency bands which said communication apparatus and said other communication apparatus use at data transmission are different frequency bands, the communication apparatus comprising: -
bandwidth presumption means for presuming a first bandwidth which is required by said communication apparatus at data transmission; bandwidth acquisition means for acquiring a second bandwidth from said other communication apparatus which is required by said other communication apparatus at data transmission; bandwidth comparison means for comparing said first bandwidth with a first bandwidth used which said first communication apparatus currently uses, and comparing said second bandwidth with a second bandwidth used which said second communication apparatus currently uses; and bandwidth used determination means for adjusting said first bandwidth and said second bandwidth according to comparison results obtained by said bandwidth comparison means and for determining a third bandwidth used by said first communication apparatus at data transmission and a fourth bandwidth used by said second communication apparatus at data transmission. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification