Wireless communication method

a wireless terminal and communication method technology, applied in the field of wireless communication methods, can solve the problems of inability to perform communication at the rate corresponding, inability to accurately predict the reception quality at the time of data signal reception based on the reception quality of the pilot signal, and inability to receive signals in slots, etc., to achieve the effect of reducing the amount of reverse-link feedback information, avoiding throughput, and small demodulation circuit scal
US20100048220A1Inactive Publication Date: 2010-02-25HITACHI LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HITACHI LTD
Publication Date
2010-02-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

Wireless communication arrangements including: first base station referring to beam scheduling information including identification information of a beam pattern to be used in each slot by the second base station, selecting, where identification information of the beam area to be used by the second base station in the slot assigned is coincident with the identification information of the first interference beam area received from the wireless terminal, the first data rate received from the wireless terminal, and selects, where the identification information of the beam area to be used by the second base station is not coincident with the identification information of the first interference beam area, the second data rate received from the wireless terminal; a step at which the first base station modulates data in accordance with one of the selected first data rate and second data rate, and transmits modulated data to the wireless terminal.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation application of U.S. patent application Ser. No. 11 / 677,134, filed Feb. 21, 2007, which relates to U.S. patent application Ser. No. 11 / 508,200 filed on Aug. 23, 2006. This application relates to and claims priority from Japanese Patent Application No. 2006-080897, filed on Mar. 23, 2006. The entirety of the contents and subject matter of all of the above is incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] The present invention relates to a wireless communication method, and particularly to a wireless communication method in which in a wireless system to perform cellular communication, an array antenna type wireless apparatus including a plurality of antennas is used, beams are formed in time division and packet transmission is performed.

[0003] Antennas used in cellular system base stations are directional antennas to form sectors, and in some antennas, an array antenna to further subdivi...

Claims

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