| US 7,496,048 B2 | ||
| Method and apparatus for transmitting downstream propagation path quality information in compressed mode | ||
| Tetsuya Ikeda, Yokohama (Japan); Ryutaro Yamanaka, Yokohama (Japan); and Hidetoshi Suzuki, Yokosuka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 10/541,066 PCT Filed Sep. 27, 2004, PCT No. PCT/JP2004/014059 § 371(c)(1), (2), (4) Date Jun. 29, 2005, PCT Pub. No. WO2005/034555, PCT Pub. Date Apr. 14, 2005. |
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| Claims priority of application No. 2003-341719 (JP), filed on Sep. 30, 2003. | ||
| Prior Publication US 2006/0087980 A1, Apr. 27, 2006 | ||
| Int. Cl. H04J 3/16 (2006.01) | ||
| U.S. Cl. 370—252 [370/331; 370/395.4; 370/468] | 5 Claims |
| 1. A compressed mode downlink propagation path quality information transmitting method for normally transmitting downlink
propagation path quality information in a scheduled period selected from an assumed period group in which transmission of
the downlink propagation path quality information is assumed, the method comprising:
a receiving step of receiving a radio signal comprising a pilot channel signal and a downlink control channel signal;
a downlink propagation path quality information generating step of generating downlink propagation path quality information
for each measurement reference period based on the pilot channel signal;
an extracting step of extracting a control parameter from the downlink control channel signal;
a timing generating step of: calculating a downlink transmission gap interval and an uplink transmission gap interval based
on the extracted control parameter; given assumed periods which come after the downlink transmission gap interval has ended
and which do not overlap the uplink transmission gap interval, determining sequentially whether a condition that a measurement
reference period associated with the assumed period does not overlap the downlink transmission gap interval, is satisfied;
and, in a first assumed period to satisfy the condition after the downlink transmission gap interval has ended, generating
a timing for transmitting downlink propagation path quality information generated based on the pilot channel signal received
in a measurement reference period associated with the first assumed period, as extra downlink propagation path quality information;
and
a transmitting step of transmitting the extra downlink propagation path quality information at the timing generated in the
timing generating step.
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