Method for dynamic uplink sounding region allocation

Details Method for dynamic uplink sounding region allocation Method for dynamic uplink sounding region allocation

2007-11-07

2011-12-06

Appiah, Charles (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S450000, C455S452100, C455S452200

Reexamination Certificate

active

08073489

ABSTRACT:
The present invention discloses a method for allocating an uplink sounding region dynamically to obtain downlink channel quality information (CQI) about a downlink channel. The method comprises receiving a downlink transmission request and retrieving an identification information from the downlink transmission request, searching one or more databases using the retrieved identification information as a key, identifying the CQI about the downlink channel from the one or more databases, wherein the uplink sounding region needs not to be allocated when the CQI corresponding to the downlink transmission request is identified in the databases.

REFERENCES:
patent: 6744740 (2004-06-01), Chen
patent: 2001/0031641 (2001-10-01), Ung et al.
patent: 2005/0159162 (2005-07-01), Park
patent: 2006/0035643 (2006-02-01), Vook et al.
patent: 2006/0120395 (2006-06-01), Xing et al.
IEEE Computer Society, “IEEE Standard for Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems,” IEEE Std. 802. 16e-2005 and IEEE Std. 802.16/2004/Cor1-2005, Feb. 28, 2006, [Retrieved Mar. 5, 2008] Retrieved from the Internet: <URL: http://www.ieeexplore.ieee.org/iel5/10676/33683/01603394.pdf> p. 50, para 4 and p. 647, para 5.
International Search Report and Written Opinion dated May 7, 2008 in Application No. PCT/US07/84030.

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