Radio base station apparatus and radio communication method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKazuyuki Miya
Life of this patent
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Abstract
A path search processing section 110 of a searcher 108 performs despreading processing for a signal that has undergone AAA reception by an MF 110a. A power addition circuit 110c adds power of a signal in which coherent addition of a despread signal has been performed, and outputs the result to a delay profile circuit 110d and also to threshold value decision circuit 111. Outputs from respective threshold value decision circuits 111 are output to a combining circuit 112. A power combination value combined by the combining circuit 112 is output to a delay profile circuit 113, and a delay profile is created based on this power combination value. A finger assignment circuit 114 finds despreading timing for AAA reception weight control from the delay profile.
Claims5
A radio base station apparatus comprising:
- a reception weight calculator that performs a weight calculation to determine a plurality of reception weights;
- a reception direction control circuit that performs reception direction control of signals from a plurality of communication terminals using a plurality of directional patterns formed based on the plurality of reception weights;
- and
- a path searcher that combines power addition values respectively corresponding to the plurality of directional patterns of the signals received from the reception direction control circuit to determine a power combination value, creates a delay profile based on the power combination value, and performs a finger assignment using the delay profile to output a despreading timing used in the weight calculation for the reception direction control.
A radio base station apparatus comprising:
- a reception weight calculator that divides a plurality of communication terminals into a plurality of groups and performs a weight calculation to determine a plurality of reception weights respectively corresponding to the plurality of groups;
- a reception direction control circuit that performs reception direction control of signals from the plurality of communication terminals using a plurality of directional patterns respectively corresponding to the plurality of groups formed based on the plurality of reception weights;
- and
- a path searcher that combines power addition values respectively corresponding to the plurality of directional patterns of the signals received from the reception direction control circuit to determine a power combination value, creates a delay profile based on the power combination value, and performs a finger assignment using the delay profile to output a despreading timing used in the weight calculation for the reception direction control.
A radio communication method comprising the steps of:
- dividing a plurality of communication terminals into a plurality of groups and performing a weight calculation to determine a plurality of reception weights respectively corresponding to the plurality of groups;
- performing, in a direction control circuit, reception direction control of signals from the plurality of communication terminals using a plurality of directional patterns respectively corresponding to the plurality of groups formed based on the plurality of reception weights;
- and
- combining power addition values respectively corresponding to the plurality of directional patterns of the reception direction controlled signals received from the direction control circuit in a path searcher to determine a power combination value, creating a delay profile based on the power combination value, and performing a finger assignment using the delay profile to output a despreading timing used in the weight calculation for the reception direction control.
Dependencies are inferred from the claim text.