Method and apparatus for assigning codes

Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...

Reexamination Certificate

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C370S342000, C370S350000

Reexamination Certificate

active

07123602

ABSTRACT:
A base station controller selects codes corresponding to rate information included in a new starting call message from a mobile station, and further selects codes assignable to the mobile station out of the selected codes as candidate codes. Then, the base station controller detects codes which meet both the characteristics of being at upper level of the candidate codes in the tree structure and being assignable to other mobile station, and further detects levels of the detected codes. Detected levels for all the candidate codes are compared to find a candidate code whose level is the lowest and to assign the candidate code to the mobile station sending the new starting call message.

REFERENCES:
patent: 5309474 (1994-05-01), Gilhousen et al.
patent: 5345467 (1994-09-01), Lomp et al.
patent: 5586113 (1996-12-01), Adachi et al.
patent: 5673260 (1997-09-01), Umeda et al.
patent: 5740168 (1998-04-01), Nakamura et al.
patent: 5751761 (1998-05-01), Gilhousen
patent: 5862132 (1999-01-01), Blanchard et al.
patent: 6041034 (2000-03-01), Fukumasa et al.
patent: 6061337 (2000-05-01), Light et al.
patent: 6078572 (2000-06-01), Tanno et al.
patent: 6084884 (2000-07-01), Adachi
patent: 6085349 (2000-07-01), Stein
patent: 6144650 (2000-11-01), Watanabe et al.
patent: 6148209 (2000-11-01), Hamalainen et al.
patent: 6226315 (2001-05-01), Sriram et al.
patent: 6233231 (2001-05-01), Felix et al.
patent: 6400755 (2002-06-01), Harris et al.
patent: 6477158 (2002-11-01), Take
patent: 6532364 (2003-03-01), Uchida et al.
patent: 6597673 (2003-07-01), Nobuyasu et al.
patent: 6614810 (2003-09-01), Lee et al.
patent: 0 765 096 (1997-03-01), None
patent: 0 814 581 (1997-12-01), None
patent: 6-6290 (1994-01-01), None
patent: 7-222237 (1995-08-01), None
patent: 09-261162 (1997-10-01), None
Adachi et al., Wideband Multi-rate DS-CDMA for Next Generation Mobile Communications Systems, Aug. 1997, Wireless Communications Conference, 0-7803-4194-5/97 IEEE, pp. 57-62.
Adachi et al., Wideband Multi-rate DS-CDMA MobileRadio Access, Dec. 1997, Asia Pacific Microwave Conference, APMC '97, vol. 1, 2-5, pp. 149-152.
Okawa et al., Orthogonal Multi-Spreading Factor Forward Link for Coherent DS-CDMA Mobile Radio, Oct. 1997, Universal Personal Communication Record, '97 Conference, 0-7803-3777-8/97 IEEE, vol. 2, pp. 618-622.
Adachi, F. et al., “Multi-rate Wideband DS-CDMA Radio Access for Next Generation Mobile Radio Sytem”, IEICE, pp. 33-38, (Sep. 1997).
F. Adachi, et al., Electronics Letters, vol. 33, No. 1, pp. 27-28, “Tree-Structured Generation of Orthogonal Spreading Codes with Different Lengths for Forward Link of DS-CDMA Mobile Radio”, Jan. 2, 1997.

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