PILOT SIGNAL FOR USE IN MULTI-SECTOR CELL

Japanese Patent JP2011045054

A

To provide pilot signal transmission sequences and methods for use in a multi-sector cell.

Pilots in different sectors are transmitted at different known power levels. In adjacent sectors, a pilot is transmitted while no pilot is transmitted in the adjoining sector. This represents transmission of a null pilot signal. A cell null is also supported, in which null pilots are transmitted in each sector of a cell at the same time. Measurements of multiple pilot signals are performed. At least two channel quality indicator values are generated from measurements corresponding to at least two pilot signals of different power levels. Two values are transmitted back to a base station which uses both values to determine the transmit power required to achieve a desired SNR at the wireless terminal. The wireless terminal also reports information indicating its location to a sector boundary.

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LAROIA RAJIV
FAN JOHN L
LI JUNYI

JP2010178850A

March 03, 2011

August 09, 2010

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QUALCOMM INC

H04J11/00; H04B7/005; H04W24/10; H04W52/24; H04W52/32; H04W16/24

US5867478A	1999-02-02
WO2001035548A1	2001-05-17

Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen

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