Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-11-27
2007-11-27
Anderson, Matthew (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S069000, C455S436000, C455S067110, C455S226100, C455S226200, C455S226300
Reexamination Certificate
active
10926742
ABSTRACT:
Methods and apparatus are described for estimating a path-loss difference between uplink and downlink communications at a first node communicating with a second node in a communication system. A quantity of access request preambles transmitted by the first node to the second node before an acknowledgement from the second node of successful receipt of a preamble is received at the first node is determined. A difference between an uplink path-loss attributed to communications from the first node to the second node and a downlink path-loss attributed to communications to the first node from the second node is estimated based on the transmitted preamble quantity determination. Once the path-loss difference is estimated, the estimate can be used for many purposes, such as to determine a transmission power of the first node.
REFERENCES:
patent: 6094576 (2000-07-01), Hakkinen et al.
patent: 6167240 (2000-12-01), Carlsson et al.
patent: 6175745 (2001-01-01), Bringby et al.
patent: 6535547 (2003-03-01), Lyckegård et al.
patent: 6549564 (2003-04-01), Popovic
patent: 6606313 (2003-08-01), Dahlman et al.
patent: 6628956 (2003-09-01), Bark et al.
patent: 6993063 (2006-01-01), Zeira et al.
patent: 7076262 (2006-07-01), Bhatoolaul et al.
patent: 7174183 (2007-02-01), Moulsley et al.
patent: 7212823 (2007-05-01), Granzow et al.
patent: 2002/0159395 (2002-10-01), Nelson, Jr. et al.
patent: 2003/0060224 (2003-03-01), Nelson, Jr. et al.
patent: 2004/0008658 (2004-01-01), Dahlman et al.
patent: 1176739 (2002-01-01), None
patent: WO 99/07105 (1999-02-01), None
patent: WO 01/78252 (2001-10-01), None
PCT International Search Report dated Mar. 9, 2005 in connection with International Application No. PCT/EP2004/013170.
PCT Written Opinion dated Mar. 9, 2005 in connection with International Application No. PCT/EP2004/013170.
“Improved OLPC for FACH”, TSG-RAN WG1 meeting #18, Boston Massachusetts, Jan. 15-18, 2001, Golden Bridge Technology, AH28.
“Operation of the Uplink Shared Channel”, TSG-RAN Working Group meeting#2, Yokohama, Feb. 22-25, 1999, Item 11, Motorola.
Moberg, J. et al.: “Throughput of the WCDMA Random Access Channel”, IST Mobile Communications Summit, Galway, Ireland, Oct. 1-4, 2000.
3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical layer procedures (FDD) (Release 5), 3rdGeneration Partnership Project, Technical Specification 25.214 V5.6.0, Sep. 2003.
3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD) (Release 5), 3rdGeneration Partnership Project, Technical Specification 25.211 V5.2.0, Sep. 2002.
Bernhardsson Bo
Ohlsson Jonas
Ziren Mikael
Anderson Matthew
Potomac Patent Group PLLC
Sharma Sujatha
Telefonaktiebolaget L M Ericsson (publ)
LandOfFree
Method and system for determining uplink/downlink path-loss... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for determining uplink/downlink path-loss..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for determining uplink/downlink path-loss... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3868366