Method of determining an acquisition indicator bit in a...

Details Method of determining an acquisition indicator bit in a... Method of determining an acquisition indicator bit in a...

2008-09-23

2008-09-23

Phu, Phuong (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S316000, C375S142000, C455S455000, C455S450000, C455S403000, C370S328000

Reexamination Certificate

active

10948463

ABSTRACT:
A method of determining an acquisition indicator bit AIsat a receiver in a communication system which includes receiving multiplexed acquisition indicator bits y=B×AI+n, where B is the signature matrix known at both base station and UE, AI is all the acquisition indicator bits and n represents noise. Next, an estimated value of the acquisition indicator bit AÎMMSE(s) as a function of∑j⁢⁢BT⁡(s,j)×y⁡(j)is calculated, where BT(s,.) is the s-th row vector of the transposed matrix BTfor acquisition indicator bit AIs. Finally, the acquisition indicator bit AIsis set as follows:in-line-formulae description="In-line Formulae" end="lead"?AIs=−1, ifAÎMMSE(s)<Rin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?AIs=0, ifR≦AÎMMSE(s)<Uin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?AIs=1, ifAÎMMSE(s)≧U,in-line-formulae description="In-line Formulae" end="tail"?where R and U are decision thresholds.

REFERENCES:
patent: 6778835 (2004-08-01), You et al.
patent: 6944205 (2005-09-01), Chun
patent: 2004/0014452 (2004-01-01), Lim et al.
patent: 2004/0136354 (2004-07-01), Li
Schulist, M., et al.: “Link level performance results for a WCDMA random access scheme with preamble power ramping and fast acquisition indication,” Vehicular Technology Conference (Fall 1999), pp. 2581-2585.
“Universal Mobile Telecommunications Systems (UMTS); Physical channels and mapping of transport channels onto physical channels (FDD),” 3G TS 25.211 V3.1.1 (1999).

Affiliated with

Also associated with

Rating

Method of determining an acquisition indicator bit in a... 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 of determining an acquisition indicator bit in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of determining an acquisition indicator bit in a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3922602