COMMUNICATION CHARACTERISTIC MEASURING DEVICE ADAPTED TO WIRELESS TERMINAL
First Claim
1. A communication characteristic measuring device adapted to a wireless terminal performing communication using a plurality of radio media via a base station in a radio communication system, comprising:
- a plurality of radio modules, each of which obtains reception acknowledgement information regarding a data packet transmitted to or received from a counterpart wireless terminal in a prescribed communication range independently with respect to each radio media; and
a radio environment cognition unit that generates delay time variation data representing characteristics of delay time variations based on the reception acknowledgement information independently with respect to each radio media and each direction of communication.
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Accused Products
Abstract
A cognitive terminal includes different types of radio modules suiting to different types radio media employed by a cognitive base station in the radio communication system. The radio module of the cognitive terminal counts the number of times it receives/transmits ACK/NACK in each unit time. A radio environment cognition unit of the cognitive terminal performs calculations using the count number(s) in consideration of the packet transmission time interval or the time required for repeating a single data packet, thus measuring characteristics of delay time variations in uplink/downlink communication with respect to each radio media. Thus, it is possible for the cognitive terminal to switch over radio media based on ACK/NACK in uplink/downlink communication.
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Citations
8 Claims
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1. A communication characteristic measuring device adapted to a wireless terminal performing communication using a plurality of radio media via a base station in a radio communication system, comprising:
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a plurality of radio modules, each of which obtains reception acknowledgement information regarding a data packet transmitted to or received from a counterpart wireless terminal in a prescribed communication range independently with respect to each radio media; and a radio environment cognition unit that generates delay time variation data representing characteristics of delay time variations based on the reception acknowledgement information independently with respect to each radio media and each direction of communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification