Apparatus and method for transmitting CQI information in a...

Details Apparatus and method for transmitting CQI information in a... Apparatus and method for transmitting CQI information in a...

2007-06-05

2007-06-05

Tran, CongVan (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S335000, C370S491000

Reexamination Certificate

active

10657501

ABSTRACT:
A user equipment (UE) located in a soft handover region transmits channel quality indicator (CQI) information bits for informing a Node B of quality of a downlink channel through a CQI field and a high speed pilot (HS-Pilot) field constituting a subframe of an uplink secondary dedicated physical control channel (DPCCH) in a code division multiple access (CDMA) communication system. The UE outputs a codeword of length20by coding the CQI information bits with a code of length20, which is used when a high speed downlink packet access (HSDPA) service is not supported, and permutes 15 coded bits coded by the same code, as a code of length15, which is used when the HSDPA service is supported, among 20 coded bits constituting the codeword, thereby locating the 15 coded bits in the CQI field, and permutes the 5 remaining coded bits to be located in the HS-Pilot field.

REFERENCES:
patent: 5835508 (1998-11-01), Kushita
patent: 7050759 (2006-05-01), Gaal et al.
patent: 7133441 (2006-11-01), Barlev et al.
patent: 2002/0141436 (2002-10-01), Toskala
patent: 2003/0095532 (2003-05-01), Kim et al.
patent: 2003/0185242 (2003-10-01), Lee et al.

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