Radio reception apparatus
OwnerKenichi Miyoshi, Takahisa Aoyama +1inventors
InventorsKenichi Miyoshi, Takahisa Aoyama, Toyoki Ue
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Abstract
The present invention makes it possible to perform channel estimation and delay profile detection based on not only an dedicated physical channel (DPCH) but also a common channel signal (e.g., downlink shared channel (DSCH)), and can thereby implement a radio reception apparatus capable of performing channel estimation and creation of a delay profile with a high degree of accuracy.
Claims20
A radio reception apparatus comprising:
- a despreading section that despreads a common channel signal;
- a channel estimation section that calculates a channel estimated value based on the despread common channel signal;
- and
- a demodulation section that compensates the despread signal for the propagation path based on the channel estimated value obtained and demodulates the received signal.
A radio reception apparatus comprising:
- a despreading section that despreads a common channel signal;
- and
- a delay profile generation section that generates a delay profile based on the despread signal, wherein said despreading section performs despreading processing at timing based on said delay profile.
A radio reception apparatus comprising:
- a despreading section that despreads an dedicated physical channel signal directed to the own station and common channel signal;
- a first channel estimation section that calculates a first channel estimated value based on the despread dedicated physical channel signal;
- a second channel estimation section that calculates a second channel estimated value based on the despread common channel signal;
- a combination section that calculates a combined channel estimated value that combines said first and second channel estimated values;
- and
- a demodulation section that compensates said despread dedicated physical channel signal and common channel signal for the propagation path based on said combined channel value and demodulates the signals.
A radio reception apparatus comprising:
- a despreading section that despreads an dedicated physical channel signal directed to the own station and common channel signal;
- a first delay profile generation section that generates a first delay profile based on the despread dedicated physical channel signal;
- a second delay profile generation section that generates a second delay profile based on the despread common channel signal;
- a combination section that calculates a combined delay profile that combines said first and second delay profiles, wherein said despreading section carries out despreading processing at timing based on said combined delay profile.
A communication terminal apparatus provided with a radio reception apparatus, said radio reception apparatus comprising:
- a despreading section that despreads a common channel signal;
- a channel estimation section that calculates a channel estimated value based on the despread common channel signal;
- and
- a demodulation section that compensates the despread signal for the propagation path based on the channel estimated value obtained and demodulates the received signal.
A communication terminal apparatus provided with a radio reception apparatus, said radio reception apparatus comprising:
- a despreading section that despreads a common channel signal;
- and
- a delay profile generation section that generates a delay profile based on the despread signal, wherein said despreading section performs despreading processing at timing based on said delay profile.
Dependencies are inferred from the claim text.