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Title:
THERMAL NOISE FLOOR ESTIMATION
Document Type and Number:
WIPO Patent Application WO/2013/176603
Kind Code:
A3
Abstract:
Embodiments herein relate to a method in a radio base station (12) for performing thermal noise power floor estimation in a radio communications network (1). The radio base station (12) computes table entries for a table for a transcendental function evaluation, which table is of minimized size with a range of table entries defined by a smallest table entry, a largest table entry, and a number of table entries. The radio base station (12) further estimates a thermal noise power floor by performing a transcendental function evaluation in computing a product representing a cumulative probability function,which cumulative probability function is related to the thermal noise power floor. The transcendental function evaluation is performed by using table look ups of the table with the computed table entries.

Inventors:
WIGREN, Torbjörn (Ekvägen 9, Uppsala, S-756 53, SE)
Application Number:
SE2013/050561
Publication Date:
March 20, 2014
Filing Date:
May 17, 2013
Export Citation:
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Assignee:
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (S Stockholm, E-164 83, SE)
International Classes:
H04B15/00
Foreign References:
US20110098014A12011-04-28
Other References:
WIGREN, T. ET AL.: "Recursive Noise Floor Estimation in WCDMA", VEHICULAR TECHNOLOGY, IEEE TRANSACTIONS ON, vol. 59, no. 5, June 2010 (2010-06-01), pages 2615,2620, XP011304938, Retrieved from the Internet
WIGREN, T. ET AL.: "Estimation of Uplink WCDMA Load in a Single RBS", VEHICULAR TECHNOLOGY CONFERENCE, 2007. VTC-2007 FALL. 2007 IEEE 66TH, 30 September 2007 (2007-09-30), pages 1499 - 1503, XP031147657, Retrieved from the Internet
WIGREN, T.: "'Soft Uplink Load Estimation in WCDMA,' Vehicular Technology", IEEE TRANSACTIONS, vol. 58, no. 2, February 2009 (2009-02-01), pages 760 - 772, XP011247292, Retrieved from the Internet
SHOARINEJAD, K. ET AL.: "Integrated predictive power control and dynamic channel assignment in mobile radio systems", WIRELESS COMMUNICATIONS, IEEE TRANSACTIONS ON, vol. 2, no. 5, September 2003 (2003-09-01), pages 976,988, XP011100604, Retrieved from the Internet
See also references of EP 2853047A4
Attorney, Agent or Firm:
AYOUB, Nabil (Ericsson AB, Patent Unit Kista RAN2, Stockholm, SE-16480, SE)
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