Wireless communication device
A wireless communication device includes a look-up table that stores a beam pattern table, and at least one beamforming antenna transmitting or receiving a radio signal with a beam pattern specified by a set of antenna weight vectors selected from the beam pattern table, where a number of antenna weight vectors for obtaining a beam pattern with a narrow half power beam width for transmission included in the beam pattern table is larger than a number of antenna weight vectors for obtaining a beam pattern with a narrow half power beam width for reception.
1. A wireless communication device comprising:
a look-up table that stores a beam pattern table; and
at least one beamforming antenna transmitting or receiving a radio signal with a beam pattern specified by a set of antenna weight vectors selected from the beam pattern table,
wherein a number of antenna weight vectors for obtaining a beam pattern with a narrow half power beam width for transmission included in the beam pattern table is larger than a number of antenna weight vectors for obtaining a beam pattern with a narrow half power beam width for reception.
2. The wireless communication device according to claim 1 , wherein:
the beam pattern table comprises a first beam pattern table and a second beam pattern table;
the first beam pattern table comprises a N number of antenna weight vectors for obtaining beam patterns with the narrow half power beam width for the transmission where N is an integer of two or more; and
the second beam pattern table comprises, antenna weight vectors for obtaining one quasi-omni beam pattern or a wide beam pattern, and a number N−1 of antenna weight vectors for obtaining a number N−1 of beam patterns with the narrow half power beam width for the reception.
3. The wireless communication device according to claim 2 , wherein
in the beam pattern table, the angular interval between adjacent beams is smaller in the beam patterns with a narrow half power beam width for the transmission than in the beam patterns with a narrow half power beam width for the reception.
4. The wireless communication device according to claim 1 , wherein
in the beam pattern table, the angular interval between adjacent beams is smaller in the beam patterns with a narrow half power beam width for the transmission than in the beam patterns with a narrow half power beam width for the reception.