摘要:
A radio communication method for performing a radio communication between a first and second movable base station apparatuses and a subordinate terminal apparatus respectively, the method including: transmitting and receiving configuration information relating radio resource and load information relating the subordinate terminal apparatus in the first and second base station apparatuses respectively, via the terminal apparatus located in an overlapped communicable range of the first and second base station apparatuses, when the first and second base station apparatuses perform radio communication using the same radio resource, by the first and second base station apparatuses respectively; and performing interference control based on the configuration information and the load information, by the first and second base station apparatuses respectively.
摘要:
The present invention discloses a method for estimating quality of a link in a broad-band wireless communication system. The method includes: calculating quality indicators of sub-carriers in an input signal of a receiver of the system; clipping the quality indicators of the sub-carriers; and averaging the clipped quality indicators of the sub-carriers to obtain an average value as an estimation result of an effective quality indicator of the link. The present application also discloses an apparatus for estimating quality of a link in a broad-band wireless communication system, an adaption method and apparatus for a link in a broad-band wireless communication system. The methods and apparatus of the present invention can achieve relatively low calculation complexity and high accuracy.
摘要:
A radio communication method in a radio communication system in which radio communication is performed between a radio communication base station apparatus and a radio communication mobile station apparatus, including: transmitting, by the radio communication mobile station apparatus, an implementation loss value of the radio communication mobile station apparatus to the radio communication base station apparatus.
摘要:
A communication apparatus includes an acquiring unit that acquires wireless cost for each path to other communication apparatuses in an ad hoc network to which the communication apparatus belongs; an accumulating unit that accumulates wireless cost for each path, acquired at different times by the acquiring unit; a determining unit that determines a priority level for each path, based on time correlations among the paths in terms of the wireless cost accumulated by the accumulating unit; and a communicating unit that communicates with the other communication apparatuses by preferentially using a path of a relatively high priority level.
摘要:
A local carrier wave output from a synthesizer to quadrature demodulators is multiplied by an offset that makes a frequency shift by an integer number of subcarriers in units of sub-carrier bands. The offset is set to a value obtained by multiplying the number sequentially counted up from 0 to the number of unused sub-carriers included in guard tones in a signal band by the bandwidth of a sub-carrier. By shifting the frequency of the local carrier wave at the time of quadrature demodulation with the offset, the SNR of a baseband signal is prevented from being constantly degraded by a frequency characteristic possessed by the circuit of a receiver in a particular sub-carrier signal. Especially, by preventing a pilot signal from being constantly degraded, the signal can be received with higher accuracy.
摘要:
A local carrier wave output from a synthesizer to quadrature demodulators is multiplied by an offset that makes a frequency shift by an integer number of subcarriers in units of sub-carrier bands. The offset is set to a value obtained by multiplying the number sequentially counted up from 0 to the number of unused sub-carriers included in guard tones in a signal band by the bandwidth of a sub-carrier. By shifting the frequency of the local carrier wave at the time of quadrature demodulation with the offset, the SNR of a baseband signal is prevented from being constantly degraded by a frequency characteristic possessed by the circuit of a receiver in a particular sub-carrier signal. Especially, by preventing a pilot signal from being constantly degraded, the signal can be received with higher accuracy.