UA88328C2 - Noise variance estimation in wireless communications for integration of diversity and scaling according to logarithmic probability - Google Patents
Noise variance estimation in wireless communications for integration of diversity and scaling according to logarithmic probabilityInfo
- Publication number
- UA88328C2 UA88328C2 UAA200704233A UAA200704233A UA88328C2 UA 88328 C2 UA88328 C2 UA 88328C2 UA A200704233 A UAA200704233 A UA A200704233A UA A200704233 A UAA200704233 A UA A200704233A UA 88328 C2 UA88328 C2 UA 88328C2
- Authority
- UA
- Ukraine
- Prior art keywords
- band
- tones
- noise variance
- wireless communications
- diversity
- Prior art date
Links
Landscapes
- Noise Elimination (AREA)
- Radio Transmission System (AREA)
Abstract
Noise variance estimation in wireless communications. Noise variance estimation includes receiving a signal 402 including an OFDM symbol having, in-band tones including in-band pilot tones, and band-edge tones including band-edge pilot tones and guard tones, estimating an effective noise variance for the in-band tones 702 using the in-band pilot tones and channel estimates for the in-band pilot tones, and estimating an effective noise variance for the band-edge tones 704 using the band-edge pilot tones, channel estimates for the band-edge pilot tones, and the guard tones.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61102804P | 2004-09-17 | 2004-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
UA88328C2 true UA88328C2 (en) | 2009-10-12 |
Family
ID=38796203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UAA200704233A UA88328C2 (en) | 2004-09-17 | 2005-09-16 | Noise variance estimation in wireless communications for integration of diversity and scaling according to logarithmic probability |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN101057475B (en) |
UA (1) | UA88328C2 (en) |
ZA (1) | ZA200702191B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4542712B2 (en) * | 1999-03-10 | 2010-09-15 | ノキア コーポレイション | Estimation of Doppler shift compensation in mobile communication systems |
US6393257B1 (en) * | 1999-04-29 | 2002-05-21 | Qualcomm Incorporated | Wireless communications receiver and decoder for receiving encoded transmissions, such as transmissions using turbo codes, and estimating channel conditions |
-
2005
- 2005-09-16 CN CN200580039158.9A patent/CN101057475B/en active Active
- 2005-09-16 UA UAA200704233A patent/UA88328C2/en unknown
-
2007
- 2007-03-15 ZA ZA200702191A patent/ZA200702191B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN101057475A (en) | 2007-10-17 |
CN101057475B (en) | 2013-04-17 |
ZA200702191B (en) | 2008-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SG155910A1 (en) | Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling | |
WO2004073182A3 (en) | Clipping distortion canceller for ofdm signals | |
TW200705916A (en) | Adaptive time-filtering for channel estimation in OFDM system | |
TW200729858A (en) | Apparatus and methods for reducing channel estimation noise in a wireless transceiver | |
MXPA05008763A (en) | Communication receiver with an adaptive equalizer that uses channel estimation. | |
TW200601754A (en) | Channel estimation for a communication system using spectral estimation | |
WO2008069735A3 (en) | Method and apparatus for suppressing interference based on channelization code power estimation with bias removal | |
TW200735567A (en) | Method and apparatus for estimating signal-to-noise ratio based on dedicated physical channel pilot symbols | |
HK1098607A1 (en) | Channel estimation for an ofdm communication system with inactive subbands | |
CL2006001941A1 (en) | Method and apparatus for estimating a channel and the level of interference of a wireless communication system. | |
MX2009010352A (en) | Channel estimator for ofdm systems. | |
TW200625882A (en) | Channel tracking with scattered pilots | |
IL170145A (en) | Communication receiver with an adaptive equalizer | |
TW200616476A (en) | Method and apparatus for estimating and reporting the quality of a wireless communication channel | |
GB2437037A (en) | Platform noise mitigation in ofdm receivers | |
UA90877C2 (en) | Channel estimation for interference cancellation | |
MY146679A (en) | Channel estimation for wireless communication | |
GB2435188A (en) | Interference rejection in wireless receivers | |
TW200511742A (en) | Communication receiver with hybrid equalizer | |
WO2008042946A3 (en) | Method and apparatus for channel estimation in a wireless communication device | |
TW200703995A (en) | Rate selection for a quasi-orthogonal communication system | |
DE602005005050D1 (en) | SIR ESTIMATION IN A WIRELESS RECEIVER | |
MY143345A (en) | Channel estimation feedback in an orthogonal frequency division multiplexing system or the like | |
WO2005006779A3 (en) | Unbiased signal to interference ratio in wireless communications devices and methods therefor | |
UA89023C2 (en) | Channel estimation of a cdma signal including plurality of multipath components in a receiver |