RU2007128073A - Оценка канала для подавления помех - Google Patents
Оценка канала для подавления помех Download PDFInfo
- Publication number
- RU2007128073A RU2007128073A RU2007128073/09A RU2007128073A RU2007128073A RU 2007128073 A RU2007128073 A RU 2007128073A RU 2007128073/09 A RU2007128073/09 A RU 2007128073/09A RU 2007128073 A RU2007128073 A RU 2007128073A RU 2007128073 A RU2007128073 A RU 2007128073A
- Authority
- RU
- Russia
- Prior art keywords
- data
- samples
- transmitted
- access terminal
- chips
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
- H04B2001/71077—Partial interference cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Claims (17)
1. Способ, содержащий этапы, на которых:
принимают выборки данных сигналов, переданных от множества терминалов доступа;
выполняют сжатие спектра принятых выборок данных с использованием элементарных сигналов пилот-сигнала, связанных с первым терминалом доступа;
демодулируют сжатые выборки данных для получения символов данных;
декодируют демодулированные символы данных;
определяют, были ли демодулированные символы данных декодированы правильно;
если демодулированные символы данных были декодированы правильно, то используют декодированные, демодулированные символы данных для регенерации элементарных сигналов данных, переданных первым терминалом доступа;
выполняют сжатие спектра принятых выборок данных с использованием регенерированных переданных элементарных сигналов данных, чтобы определить оценку канала;
сохраняют выборки данных, принятые от множества терминалов доступа, в буфере;
используют полученную оценку канала для восстановления выборок данных, переданных из первого терминала доступа; и
вычитают восстановленные выборки данных, переданные из первого терминала доступа, из сохраненных в буфере выборок данных.
2. Способ по п.1, в котором элементарные сигналы пилот-сигнала покрываются псевдослучайной шумовой (ПШ) последовательностью.
3. Способ по п.1, в котором сигналы содержат сигналы множественного доступа с кодовым разделением (CDMA).
4. Способ по п.1, дополнительно содержащий этап, на котором накапливают выборки сжатых данных в течение периода времени.
5. Способ по п.1, в котором этап сжатия принятых выборок данных с использованием регенерированных, переданных элементарных сигналов данных для определения оценки канала выполняют при каждой задержке отвода многоотводного приемника из множества задержек отводов многоотводного приемника.
6. Способ по п.1, в котором этап регенерации элементарных сигналов данных, переданных первым терминалом доступа, содержит, по меньшей мере, одно из повторного кодирования, повторного перемежения, повторной модуляции, повторного применения усиления канала данных и повторного расширения спектра данных.
7. Способ по п.1, дополнительно содержащий этапы, на которых:
выполняют сжатие принятых выборок данных с использованием элементарных сигналов псевдослучайного шума (ПШ) пилот-сигнала, связанных со вторым терминалом доступа;
демодулируют выборки сжатых данных для получения символов данных;
декодируют демодулированные символы данных;
определяют, были ли демодулированные символы данных декодированы правильно; и
если демодулированные символы данных были декодированы правильно, то используют декодированные, демодулированные символы данных для регенерации элементарных сигналов данных, переданных вторым терминалом доступа, при каждой задержке отвода многоотводного приемника.
8. Базовая станция, содержащая:
память, сконфигурированную для хранения выборок данных сигналов, принятых от множества терминалов доступа;
демодулятор, выполненный с возможностью сжатия и демодуляции сохраненных выборок данных с использованием первой кодовой последовательности, соответствующей первому терминалу доступа;
декодер, выполненный с возможностью декодирования данных из демодулированных данных;
блок регенерации, выполненный с возможностью использования правильно декодированных данных для регенерации элементарных сигналов данных, переданных первым терминалом доступа;
блок оценки канала, выполненный с возможностью сжатия сохраненных выборок данных с использованием регенерированных элементарных сигналов данных для определения оценки канала;
блок восстановления, выполненный с возможностью использования декодированных данных и оценки канала для восстановления элементарных сигналов кодированных и модулированных данных; и
узел вычитания, выполненный с возможностью вычитания восстановленных выборок данных из выборок, сохранных в памяти, чтобы уменьшить помехи для декодера для последующего декодирования данных для других терминалов доступа из сохраненных выборок.
9. Базовая станция по п.8, дополнительно содержащая накопитель для накопления в течение некоторого периода времени сжатых выборок данных.
10. Базовая станция по п.8, в которой демодулятор содержит многоотводный приемник со множеством блоков обработки отводов для обработки многолучевых сигналов, причем каждый блок обработки отвода имеет однородно определенную задержку для обработки выборок из памяти.
11. Базовая станция по п.8, в которой узел регенерации, выполнен с возможностью регенерации элементарных сигналов данных, переданных первым терминалом доступа, путем, по меньшей мере, одного из повторного кодирования, повторного перемежения, повторной модуляции, повторного применения усиления канала данных и повторного расширения спектра.
12. Базовая станция по п.8, в которой первая кодовая последовательность представляет собой псевдослучайную шумовую (ПШ) последовательность.
13. Способ, содержащий этапы, на которых:
принимают выборки данных сигналов, переданных от множества терминалов доступа;
выполняют сжатие принятых выборок данных с использованием элементарных сигналов пилот-сигнала, связанных с первым терминалом доступа;
демодулируют сжатые выборки данных для получения символов данных;
декодируют демодулированные символы данных;
определяют, были ли демодулированные символы данных декодированы правильно;
если демодулированные символы данных были декодированы правильно, то используют декодированные, демодулированные символы данных для регенерации элементарных сигналов данных, переданных первым терминалом доступа;
на основании оцененных задержек многолучевого сигнала определяют временной период для равномерной регенерации; и
выполняют сжатие принятых выборок данных с использованием переданных элементарных сигналов данных, регенерированных при равномерных задержках для определенного временного периода, чтобы определить оценку канала.
14. Способ по п.13, в котором элементарные сигналы пилот-сигнала покрывают псевдослучайной шумовой (ПШ) последовательностью.
15. Способ по п.13, дополнительно содержащий этапы, на которых:
сохраняют выборки данных, принятые от множества терминалов доступа, в буфере;
используют определенную оценку канала для восстановления выборок данных, переданных из первого терминала доступа; и
вычитают восстановленные выборки данных, переданные из первого терминала доступа, из сохраненных в буфере выборок данных.
16. Способ по п.13, в котором этап определения временного периода содержит этап, на котором выбирают временной период на основании информации о задержках многолучевого сигнала и априорной оценки комбинированной характеристики фильтров передатчика и приемника.
17. Устройство, содержащее:
средство для приема выборок данных сигналов, переданных от множества терминалов доступа;
средство для сжатия принятых выборок данных с использованием элементарных сигналов пилот-сигнала, связанных с первым терминалом доступа;
средство для демодуляции сжатых выборок данных для получения символов данных;
средство для декодирования демодулированных символов данных;
средство для определения, были ли демодулированные символы данных декодированы правильно;
средство для использования декодированных, демодулированных символов данных для регенерации элементарных сигналов данных, переданных первым терминалом доступа, если демодулированные символы данных были декодированы правильно;
средство для определения временного периода для равномерной регенерации на основании оцененных задержек многолучевого сигнала; и
средство для сжатия принятых выборок данных с использованием переданных элементарных сигналов данных, регенерированных при равномерных задержках для определенного временного периода, чтобы определить оценку канала.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63866604P | 2004-12-23 | 2004-12-23 | |
US60/638,666 | 2004-12-23 | ||
US11/192,503 | 2005-07-29 | ||
US11/192,503 US8422955B2 (en) | 2004-12-23 | 2005-07-29 | Channel estimation for interference cancellation |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2007128073A true RU2007128073A (ru) | 2009-01-27 |
RU2364023C2 RU2364023C2 (ru) | 2009-08-10 |
Family
ID=36612385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2007128073/09A RU2364023C2 (ru) | 2004-12-23 | 2005-12-22 | Оценка канала для подавления помех |
Country Status (14)
Country | Link |
---|---|
US (1) | US8422955B2 (ru) |
EP (2) | EP2204916B1 (ru) |
JP (1) | JP4567751B2 (ru) |
KR (1) | KR100938730B1 (ru) |
CN (1) | CN102035569B (ru) |
AU (1) | AU2005321821B2 (ru) |
BR (1) | BRPI0519545A2 (ru) |
CA (1) | CA2592496A1 (ru) |
IL (1) | IL184022A0 (ru) |
MX (1) | MX2007007768A (ru) |
NO (1) | NO20073237L (ru) |
RU (1) | RU2364023C2 (ru) |
TW (1) | TW200703942A (ru) |
WO (1) | WO2006072088A1 (ru) |
Families Citing this family (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8611311B2 (en) * | 2001-06-06 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
US7190749B2 (en) * | 2001-06-06 | 2007-03-13 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
US7715508B2 (en) | 2005-11-15 | 2010-05-11 | Tensorcomm, Incorporated | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US8005128B1 (en) | 2003-09-23 | 2011-08-23 | Rambus Inc. | Methods for estimation and interference cancellation for signal processing |
US8452316B2 (en) | 2004-06-18 | 2013-05-28 | Qualcomm Incorporated | Power control for a wireless communication system utilizing orthogonal multiplexing |
US7197692B2 (en) | 2004-06-18 | 2007-03-27 | Qualcomm Incorporated | Robust erasure detection and erasure-rate-based closed loop power control |
US8099123B2 (en) | 2004-12-23 | 2012-01-17 | Qualcomm Incorporated | Adaptation of transmit subchannel gains in a system with interference cancellation |
US8422955B2 (en) * | 2004-12-23 | 2013-04-16 | Qualcomm Incorporated | Channel estimation for interference cancellation |
US8442441B2 (en) * | 2004-12-23 | 2013-05-14 | Qualcomm Incorporated | Traffic interference cancellation |
US8406695B2 (en) * | 2004-12-23 | 2013-03-26 | Qualcomm Incorporated | Joint interference cancellation of pilot, overhead and traffic channels |
US20060221810A1 (en) * | 2005-03-10 | 2006-10-05 | Bojan Vrcelj | Fine timing acquisition |
US20100157833A1 (en) * | 2005-03-10 | 2010-06-24 | Qualcomm Incorporated | Methods and systems for improved timing acquisition for varying channel conditions |
US8144824B2 (en) * | 2005-03-10 | 2012-03-27 | Qualcomm Incorporated | Trend influenced time tracking |
US8675631B2 (en) * | 2005-03-10 | 2014-03-18 | Qualcomm Incorporated | Method and system for achieving faster device operation by logical separation of control information |
US8942639B2 (en) | 2005-03-15 | 2015-01-27 | Qualcomm Incorporated | Interference control in a wireless communication system |
US8848574B2 (en) | 2005-03-15 | 2014-09-30 | Qualcomm Incorporated | Interference control in a wireless communication system |
US7991088B2 (en) | 2005-11-15 | 2011-08-02 | Tommy Guess | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US7826516B2 (en) | 2005-11-15 | 2010-11-02 | Rambus Inc. | Iterative interference canceller for wireless multiple-access systems with multiple receive antennas |
US7711075B2 (en) | 2005-11-15 | 2010-05-04 | Tensorcomm Incorporated | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US7389099B2 (en) * | 2005-04-22 | 2008-06-17 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for canceling interference from high power, high data rate signals |
US8594252B2 (en) * | 2005-08-22 | 2013-11-26 | Qualcomm Incorporated | Interference cancellation for wireless communications |
US8611305B2 (en) | 2005-08-22 | 2013-12-17 | Qualcomm Incorporated | Interference cancellation for wireless communications |
US9071344B2 (en) | 2005-08-22 | 2015-06-30 | Qualcomm Incorporated | Reverse link interference cancellation |
US8743909B2 (en) * | 2008-02-20 | 2014-06-03 | Qualcomm Incorporated | Frame termination |
US8630602B2 (en) * | 2005-08-22 | 2014-01-14 | Qualcomm Incorporated | Pilot interference cancellation |
US7702048B2 (en) * | 2005-11-15 | 2010-04-20 | Tensorcomm, Incorporated | Iterative interference cancellation using mixed feedback weights and stabilizing step sizes |
US8472877B2 (en) * | 2005-10-24 | 2013-06-25 | Qualcomm Incorporated | Iterative interference cancellation system and method |
KR101097021B1 (ko) | 2005-10-27 | 2011-12-20 | 콸콤 인코포레이티드 | 무선 통신 시스템에서 역방향 링크 로딩을 추정하기 위한 방법 및 장치 |
US7623607B2 (en) * | 2005-10-31 | 2009-11-24 | Qualcomm Incorporated | Methods and apparatus for determining timing in a wireless communication system |
US7623602B2 (en) * | 2005-11-15 | 2009-11-24 | Tensorcomm, Inc. | Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity |
US20070110135A1 (en) * | 2005-11-15 | 2007-05-17 | Tommy Guess | Iterative interference cancellation for MIMO-OFDM receivers |
US8385388B2 (en) * | 2005-12-06 | 2013-02-26 | Qualcomm Incorporated | Method and system for signal reconstruction from spatially and temporally correlated received samples |
US8948329B2 (en) * | 2005-12-15 | 2015-02-03 | Qualcomm Incorporated | Apparatus and methods for timing recovery in a wireless transceiver |
US20070165728A1 (en) * | 2006-01-17 | 2007-07-19 | Vladimir Parizhsky | Multi-symbol signals including an initial symbol and an extension portion |
EP2002583A4 (en) * | 2006-03-17 | 2013-03-20 | Jocelyn Aulin | OFDM IN A QUICKLY SCAVING CHANNEL |
US8670777B2 (en) | 2006-09-08 | 2014-03-11 | Qualcomm Incorporated | Method and apparatus for fast other sector interference (OSI) adjustment |
US8442572B2 (en) | 2006-09-08 | 2013-05-14 | Qualcomm Incorporated | Method and apparatus for adjustments for delta-based power control in wireless communication systems |
US20080117849A1 (en) * | 2006-09-08 | 2008-05-22 | Qualcomm Incorporated | Method and apparatus for interaction of fast other sector interference (osi) with slow osi |
US20080240168A1 (en) * | 2007-03-31 | 2008-10-02 | Hoffman Jeffrey D | Processing wireless and broadband signals using resource sharing |
GB0806385D0 (en) * | 2008-04-08 | 2008-05-14 | Qualcomm Inc | Radio communications system and method with increased channel capacity |
IL203785A (en) | 2007-09-12 | 2014-07-31 | Qualcomm Inc | Devices to increase capacitance and methods for wireless communication |
JP5128311B2 (ja) * | 2008-02-28 | 2013-01-23 | シャープ株式会社 | 基地局装置、端末装置及び無線通信システム |
US8457549B2 (en) * | 2008-02-29 | 2013-06-04 | Lingna Holdings Pte., Llc | Multi-user MIMO relay protocol with self-interference cancellation |
KR101457690B1 (ko) * | 2008-03-05 | 2014-11-04 | 삼성전자주식회사 | 통신 시스템에서 간섭 신호를 제거하기 위한 수신 장치 및 방법 |
US20100046660A1 (en) | 2008-05-13 | 2010-02-25 | Qualcomm Incorporated | Interference cancellation under non-stationary conditions |
US9408165B2 (en) * | 2008-06-09 | 2016-08-02 | Qualcomm Incorporated | Increasing capacity in wireless communications |
US9277487B2 (en) * | 2008-08-01 | 2016-03-01 | Qualcomm Incorporated | Cell detection with interference cancellation |
US9237515B2 (en) * | 2008-08-01 | 2016-01-12 | Qualcomm Incorporated | Successive detection and cancellation for cell pilot detection |
US20100097955A1 (en) * | 2008-10-16 | 2010-04-22 | Qualcomm Incorporated | Rate determination |
US8411780B2 (en) * | 2009-02-24 | 2013-04-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Estimating the ratio of traffic channel power to pilot power in a MIMO wireless communication system |
JP2010206730A (ja) | 2009-03-05 | 2010-09-16 | Sony Corp | 無線通信装置及び無線通信方法 |
US8625724B2 (en) * | 2009-03-10 | 2014-01-07 | Qualcomm Incorporated | Adaptive tracking steps for time and frequency tracking loops |
US9160577B2 (en) * | 2009-04-30 | 2015-10-13 | Qualcomm Incorporated | Hybrid SAIC receiver |
US8787509B2 (en) * | 2009-06-04 | 2014-07-22 | Qualcomm Incorporated | Iterative interference cancellation receiver |
GB0911124D0 (en) * | 2009-06-26 | 2009-08-12 | Newtec Cy Nv | Reduced complexity FDM-CPM detector with multiple access interference cancellation |
US8406354B2 (en) * | 2009-07-01 | 2013-03-26 | Telefonaktiebolaget L M Ericsson (Publ) | Interference cancellation in a multi-user receiver |
US20110022916A1 (en) * | 2009-07-24 | 2011-01-27 | Prasanna Desai | Method and system for saving power for packet re-transmission in an encrypted bluetooth low power link layer connection |
US8311484B2 (en) * | 2009-09-15 | 2012-11-13 | Broadcom Corporation | Method and system for interference suppression using information from non-listened base stations |
US8619928B2 (en) * | 2009-09-03 | 2013-12-31 | Qualcomm Incorporated | Multi-stage interference suppression |
US8831149B2 (en) * | 2009-09-03 | 2014-09-09 | Qualcomm Incorporated | Symbol estimation methods and apparatuses |
BR112012012632B1 (pt) | 2009-11-27 | 2020-12-15 | Qualcomm Incorporated | Método e equipamento para aumentar a capacidade de transmissão em comunicações sem fio, e memória legível por computador |
CN102668612B (zh) | 2009-11-27 | 2016-03-02 | 高通股份有限公司 | 增加无线通信中的容量 |
CN102098075B (zh) * | 2009-12-15 | 2014-01-01 | 中兴通讯股份有限公司 | 一种联合检测的方法及装置 |
RU2533159C2 (ru) * | 2010-09-16 | 2014-11-20 | ЗетТиИ Уистрон Телеком АБ | Способ и система для улучшенного подавления помех посредством выбора пути |
CN102185631B (zh) | 2011-04-28 | 2014-05-14 | 意法·爱立信半导体(北京)有限公司 | 一种码道激活方法及装置 |
RU2570813C1 (ru) | 2012-10-25 | 2015-12-10 | Хуавэй Текнолоджиз Ко., Лтд. | Способ и устройство восстановления при потере обнаружения канала управления |
RU2522899C1 (ru) * | 2012-12-06 | 2014-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" | Адаптивная система для регулирования и стабилизации физических величин |
US20150023230A1 (en) * | 2013-07-19 | 2015-01-22 | Qualcomm Incorporated | Dual sim dual active subscriber identification module with a single transmit chain and dual or single receive chain |
US20150023258A1 (en) * | 2013-07-19 | 2015-01-22 | Qualcomm Incorporated | Dual sim dual active subscriber identification module with a single transmit chain and dual or single receive chain |
CN104378172B (zh) * | 2013-08-14 | 2019-07-26 | 中兴通讯股份有限公司 | 数据信道干扰抵消的方法和系统 |
US10461966B2 (en) * | 2018-02-26 | 2019-10-29 | Samsung Electronics Co., Ltd | System and method for interference cancelation from one numerology on another numerology in mixed numerologies |
Family Cites Families (165)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3535516A1 (de) | 1985-10-04 | 1987-04-09 | Fritz Buchner | Tablettenfoermiges wasch- und reinigungsmittel, verfahren zu seiner herstellung und seine verwendung |
US4901307A (en) * | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US6693951B1 (en) | 1990-06-25 | 2004-02-17 | Qualcomm Incorporated | System and method for generating signal waveforms in a CDMA cellular telephone system |
ZA938324B (en) * | 1992-11-24 | 1994-06-07 | Qualcomm Inc | Pilot carrier dot product circuit |
US5490165A (en) * | 1993-10-28 | 1996-02-06 | Qualcomm Incorporated | Demodulation element assignment in a system capable of receiving multiple signals |
AU687228B2 (en) | 1994-07-29 | 1998-02-19 | Qualcomm Incorporated | Method and apparatus for performing code acquisition in a CDMA communications system |
FI99184C (fi) * | 1994-11-28 | 1997-10-10 | Nokia Telecommunications Oy | Menetelmä käytettävissä olevien taajuuskaistojen jakamiseksi eri soluihin TDMA-solukkoradiojärjestelmässä ja TDMA-solukkoradiojärjestelmä |
US6137843A (en) * | 1995-02-24 | 2000-10-24 | Ericsson Inc. | Methods and apparatus for canceling adjacent channel signals in digital communications systems |
DE69633219T2 (de) | 1995-06-13 | 2005-08-25 | Ntt Docomo, Inc. | Cdma-demodulator |
US5764687A (en) | 1995-06-20 | 1998-06-09 | Qualcomm Incorporated | Mobile demodulator architecture for a spread spectrum multiple access communication system |
US5805648A (en) | 1995-07-31 | 1998-09-08 | Qualcomm Incorporated | Method and apparatus for performing search acquisition in a CDMA communication system |
US5703905A (en) | 1996-02-16 | 1997-12-30 | Globespan Technologies, Inc. | Multi-channel timing recovery system |
JP2746261B2 (ja) * | 1996-06-10 | 1998-05-06 | 日本電気株式会社 | Ds−cdma干渉キャンセル装置 |
US6002715A (en) | 1996-07-11 | 1999-12-14 | Motorola, Inc. | Method for a receiver unit to determine a quality value for a received signal |
US5812600A (en) * | 1996-07-26 | 1998-09-22 | Motorola, Inc. | Method and apparatus for mitigating distortion effects in the determination of signal usability |
US6009089A (en) | 1996-08-20 | 1999-12-28 | Lucent Technologies Inc. | Pilot interference cancellation for a coherent wireless code division multiple access receiver |
US6067292A (en) * | 1996-08-20 | 2000-05-23 | Lucent Technologies Inc | Pilot interference cancellation for a coherent wireless code division multiple access receiver |
US5781543A (en) | 1996-08-29 | 1998-07-14 | Qualcomm Incorporated | Power-efficient acquisition of a CDMA pilot signal |
US5789973A (en) * | 1996-09-04 | 1998-08-04 | Motorola, Inc. | Resistorless operational transconductance amplifier circuit |
US6259724B1 (en) * | 1996-10-18 | 2001-07-10 | Telefonaktiebolaget L M Ericsson (Publ) | Random access in a mobile telecommunications system |
KR100204599B1 (ko) * | 1996-12-21 | 1999-06-15 | 정선종 | 적응형 직병렬 혼합 잡음 제거 방법 |
JP3586348B2 (ja) * | 1997-03-05 | 2004-11-10 | 富士通株式会社 | 信号対干渉電力比測定装置及び信号対干渉電力比測定方法並びにcdma通信方式下での送信電力制御方法 |
IL120538A (en) * | 1997-03-26 | 2000-11-21 | Dspc Tech Ltd | Method and apparatus for reducing spread-spectrum noise |
US6201799B1 (en) | 1997-05-01 | 2001-03-13 | Lucent Technologies, Inc | Partial decorrelation for a coherent multicode code division multiple access receiver |
WO1999009674A2 (en) * | 1997-08-13 | 1999-02-25 | Qualcomm Incorporated | Method and apparatus for interference cancellation for a high data rate user in a cdma system |
US6574211B2 (en) * | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
US6175587B1 (en) * | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression in a DS-CDMA system |
US6131013A (en) | 1998-01-30 | 2000-10-10 | Motorola, Inc. | Method and apparatus for performing targeted interference suppression |
US6122309A (en) | 1998-01-30 | 2000-09-19 | Motorola, Inc. | Method and apparatus for performing interference suppression using modal moment estimates |
JP2967571B1 (ja) | 1998-05-01 | 1999-10-25 | 日本電気株式会社 | Cdmaマルチユーザ受信装置と通信システム |
KR100318959B1 (ko) * | 1998-07-07 | 2002-04-22 | 윤종용 | 부호분할다중접속통신시스템의서로다른부호간의간섭을제거하는장치및방법 |
US6154443A (en) | 1998-08-11 | 2000-11-28 | Industrial Technology Research Institute | FFT-based CDMA RAKE receiver system and method |
SG84514A1 (en) | 1998-08-31 | 2001-11-20 | Oki Techno Ct Singapore Pte | Receiving device and channel estimator for use in a cdma communication system |
US6498784B1 (en) * | 1998-10-20 | 2002-12-24 | Interdigital Technology Corporation | Cancellation of pilot and traffic signals |
EP1142153A1 (en) * | 1998-10-26 | 2001-10-10 | Nokia Corporation | Channel estimation in a cellular communication system |
US6333947B1 (en) | 1998-11-25 | 2001-12-25 | Nortel Networks Limited | Interference cancellation system and method and CDMA receiver including an interference cancellation circuit |
US6295289B1 (en) | 1998-11-30 | 2001-09-25 | Nokia Mobile Phones, Ltd. | Power control in a transmitter |
KR100321978B1 (ko) | 1998-12-31 | 2002-07-02 | 윤종용 | 통신시스템에서반복복호장치및방법 |
DE19901877B4 (de) * | 1999-01-19 | 2005-10-13 | Siemens Ag | Verfahren zum Gewinnen von Informationen über Störungen im Empfänger eines Nachrichtenübertragungssystems |
GB9903465D0 (en) | 1999-02-17 | 1999-04-07 | King S College London | Adaptive hybrid interfernce cancellation,multi-user detection for multi-rate system |
US6347861B1 (en) * | 1999-03-02 | 2002-02-19 | Hewlett-Packard Company | Fluid ejection device having mechanical intercoupling structure embedded within chamber layer |
US6393302B1 (en) * | 1999-03-05 | 2002-05-21 | Verizon Laboratories Inc. | System and method for increasing capacity of a cellular network by cell site reconfiguration |
JP3229864B2 (ja) | 1999-03-24 | 2001-11-19 | 三洋電機株式会社 | 伝送チャネルの割当方法およびそれを用いた無線装置 |
US6493541B1 (en) | 1999-07-02 | 2002-12-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmit power control time delay compensation in a wireless communications system |
US6570909B1 (en) * | 1999-07-09 | 2003-05-27 | Nokia Mobile Phones | Interference suppression in a CDMA receiver |
US6496706B1 (en) | 1999-07-23 | 2002-12-17 | Qualcomm Incorporated | Method and system for transmit gating in a wireless communication system |
US6691362B1 (en) * | 1999-07-26 | 2004-02-17 | Sebor Family Trust | Device for dislodging a submersible pool cleaner |
US6621804B1 (en) * | 1999-10-07 | 2003-09-16 | Qualcomm Incorporated | Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel |
US6850506B1 (en) * | 1999-10-07 | 2005-02-01 | Qualcomm Incorporated | Forward-link scheduling in a wireless communication system |
FR2800944B1 (fr) | 1999-11-04 | 2002-01-25 | Cit Alcatel | Procede pour augmenter la capacite d'un reseau cdma, et unites associees |
US6967998B1 (en) | 1999-11-12 | 2005-11-22 | Qualcomm Incorporated | Method and apparatus for monitoring transmission quality |
US6549565B1 (en) | 1999-12-07 | 2003-04-15 | Lucent Technologies Inc. | Code division multiple access system and method of operation with improved signal acquisition and processing |
US6975666B2 (en) * | 1999-12-23 | 2005-12-13 | Institut National De La Recherche Scientifique | Interference suppression in CDMA systems |
EP1117185A1 (en) | 2000-01-14 | 2001-07-18 | Lucent Technologies Inc. | Method and rake receiver for code-tracking in CDMA communication systems |
US7254171B2 (en) | 2000-01-20 | 2007-08-07 | Nortel Networks Limited | Equaliser for digital communications systems and method of equalisation |
US6650694B1 (en) * | 2000-02-18 | 2003-11-18 | Texas Instruments Incorporated | Correlator co-processor for CDMA RAKE receiver operations |
US6996069B2 (en) | 2000-02-22 | 2006-02-07 | Qualcomm, Incorporated | Method and apparatus for controlling transmit power of multiple channels in a CDMA communication system |
US6917642B1 (en) * | 2000-02-23 | 2005-07-12 | Ipr Licensing, Inc. | Method for using a non-orthogonal pilot signal with data channel interference cancellation |
JP3844934B2 (ja) * | 2000-03-03 | 2006-11-15 | 株式会社日立コミュニケーションテクノロジー | 基地局装置、移動通信システム及び送信電力制御方法 |
US20020006121A1 (en) * | 2000-04-27 | 2002-01-17 | Dileep George | Adaptive diversity combining for wide band code division multiple access (W-CDMA) based on iterative channel estimation |
JP3793687B2 (ja) * | 2000-05-12 | 2006-07-05 | 株式会社日立コミュニケーションテクノロジー | 無線基地局及び移動通信システム |
ATE311045T1 (de) * | 2000-05-25 | 2005-12-15 | Samsung Electronics Co Ltd | Vorrichtung und verfahren f r bertragungs- diversity durch verwendung von mehr als zwei antennen |
US6683908B1 (en) | 2000-06-29 | 2004-01-27 | Samsung Electronics Co., Ltd. | RF receiver having improved signal-to-noise ratio and method of operation |
JP4574805B2 (ja) | 2000-06-30 | 2010-11-04 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 通信システム及びその電力制御方法 |
JP2002044053A (ja) | 2000-07-19 | 2002-02-08 | Fujitsu Ltd | Cdmaマルチユーザ受信装置 |
US6580899B1 (en) * | 2000-09-07 | 2003-06-17 | Nortel Networks Limited | Adaptive forward power management algorithm for traffic hotspots |
US6680727B2 (en) * | 2000-10-17 | 2004-01-20 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a CDMA communication system |
US6654408B1 (en) | 2000-10-27 | 2003-11-25 | Wisconsin Alumni Research Foundation | Method and system for multi-carrier multiple access reception in the presence of imperfections |
US6788733B1 (en) | 2000-11-09 | 2004-09-07 | Qualcomm, Incorporated | Method and apparatus for interference cancellation in a communication system |
US7069034B1 (en) * | 2000-11-22 | 2006-06-27 | Ericsson Inc. | Systems and methods for reduced forward link power control delay |
US6865218B1 (en) * | 2000-11-27 | 2005-03-08 | Ericsson Inc. | Multipath interference reduction for a CDMA system |
JP3440076B2 (ja) | 2000-11-29 | 2003-08-25 | 松下電器産業株式会社 | 無線インフラ装置 |
US6999430B2 (en) | 2000-11-30 | 2006-02-14 | Qualcomm Incorporated | Method and apparatus for transmitting data traffic on a wireless communication channel |
RU2192709C2 (ru) | 2000-11-30 | 2002-11-10 | Гармонов Александр Васильевич | Способ приема многолучевых сигналов в системе радиосвязи с кодовым разделением каналов и устройство для его реализации |
JP2002217871A (ja) | 2000-12-19 | 2002-08-02 | Telefon Ab Lm Ericsson Publ | サブトラクティブ干渉キャンセラにおける重み付け係数の設定方法、該重み付け係数を使用した干渉キャンセラユニットおよび干渉キャンセラ |
US7394792B1 (en) * | 2002-10-08 | 2008-07-01 | Urbain A. von der Embse | Multi-scale CDMA |
JP2002232397A (ja) * | 2001-01-31 | 2002-08-16 | Ntt Docomo Inc | 移動通信システムにおける受信処理方法及び受信装置 |
US6940827B2 (en) | 2001-03-09 | 2005-09-06 | Adaptix, Inc. | Communication system using OFDM for one direction and DSSS for another direction |
WO2002073937A2 (en) | 2001-03-14 | 2002-09-19 | Mercury Computer Systems, Inc. | Wireless communications methods and systems for long-code and other spread spectrum waveform processing |
US7209515B2 (en) | 2001-03-30 | 2007-04-24 | Science Applications International Corporation | Multistage reception of code division multiple access transmissions |
US6580771B2 (en) | 2001-03-30 | 2003-06-17 | Nokia Corporation | Successive user data multipath interference cancellation |
US20020146044A1 (en) * | 2001-04-09 | 2002-10-10 | Riaz Esmailzadeh | Hybrid single/multiuser interference reduction detector |
US8611311B2 (en) * | 2001-06-06 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
US7190749B2 (en) | 2001-06-06 | 2007-03-13 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
US20050013350A1 (en) * | 2001-06-06 | 2005-01-20 | Coralli Alessandro Vanelli | Method and apparatus for canceling pilot interference in a wireless communication system |
KR100395497B1 (ko) | 2001-06-08 | 2003-08-25 | 한국전자통신연구원 | 씨디엠에이 수신기의 병렬형 간섭 제거 방법 |
US7197282B2 (en) | 2001-07-26 | 2007-03-27 | Ericsson Inc. | Mobile station loop-back signal processing |
US7787389B2 (en) * | 2001-08-20 | 2010-08-31 | Qualcomm Incorporated | Method and system for utilization of an outer decoder in a broadcast services communication system |
US6697347B2 (en) | 2001-08-22 | 2004-02-24 | Nokia Mobile Phones Ltd. | Method and apparatus for controlling transmission of packets in a wireless communication system |
US6642883B2 (en) * | 2001-08-30 | 2003-11-04 | Lockheed Martin Corporation | Multi-beam antenna with interference cancellation network |
US7042968B1 (en) | 2001-09-12 | 2006-05-09 | Nokia Corporation | Efficient multipurpose code matched filter for wideband CDMA |
US7245600B2 (en) | 2001-11-05 | 2007-07-17 | Qualcomm, Inc. | Method and apparatus for determining reverse link load level for reverse link data scheduling in a CDMA communication system |
KR100426623B1 (ko) | 2001-12-22 | 2004-04-13 | 한국전자통신연구원 | 인접 기지국 파일럿 신호 제거를 위한 이동통신 단말기의복조 장치 및 그 방법 |
GB2384660B (en) | 2002-01-25 | 2004-11-17 | Toshiba Res Europ Ltd | Reciever processing systems |
GB2384665B (en) | 2002-01-25 | 2004-11-17 | Toshiba Res Europ Ltd | Reciever processing systems |
US6748009B2 (en) | 2002-02-12 | 2004-06-08 | Interdigital Technology Corporation | Receiver for wireless telecommunication stations and method |
JP3888189B2 (ja) | 2002-03-12 | 2007-02-28 | 松下電器産業株式会社 | 適応アンテナ基地局装置 |
GB2386519B (en) | 2002-03-12 | 2004-05-26 | Toshiba Res Europ Ltd | Adaptive Multicarrier Communication |
US7292552B2 (en) | 2002-03-14 | 2007-11-06 | Qualcomm Incorporated | Method and apparatus for reducing interference in a wireless communication system |
US7035284B2 (en) | 2002-03-14 | 2006-04-25 | Qualcomm Incorporated | Method and apparatus for reducing inter-channel interference in a wireless communication system employing a non-periodic interleaver |
US7406065B2 (en) | 2002-03-14 | 2008-07-29 | Qualcomm, Incorporated | Method and apparatus for reducing inter-channel interference in a wireless communication system |
US7263118B2 (en) | 2002-04-26 | 2007-08-28 | Electronics And Telecommunications Research Institute | Interference canceling device and method in mobile communication system |
AU2003903826A0 (en) * | 2003-07-24 | 2003-08-07 | University Of South Australia | An ofdm receiver structure |
US7177658B2 (en) * | 2002-05-06 | 2007-02-13 | Qualcomm, Incorporated | Multi-media broadcast and multicast service (MBMS) in a wireless communications system |
EP1365518A1 (en) | 2002-05-21 | 2003-11-26 | Nokia Corporation | Method and apparatus for synchronisation of DS-CDMA multipath signals |
US7061967B2 (en) * | 2002-06-24 | 2006-06-13 | Comsys Communication & Signal Processing Ltd. | Multipath channel tap delay estimation in a CDMA spread spectrum receiver |
US7551546B2 (en) * | 2002-06-27 | 2009-06-23 | Nortel Networks Limited | Dual-mode shared OFDM methods/transmitters, receivers and systems |
US7263082B1 (en) | 2002-06-28 | 2007-08-28 | Arraycomm, Llc | Resolving user-specific narrow beam signals using a known sequence in a wireless communications system with a common pilot channel |
US7206554B1 (en) | 2002-06-28 | 2007-04-17 | Arraycomm Llc | Transmit diversity with formed beams in a wireless communications system using a common pilot channel |
US7164739B1 (en) | 2002-06-28 | 2007-01-16 | Arraycomm, Llc. | Broadcast burst with repeated weights for a radio communications system |
US7221699B1 (en) | 2002-06-28 | 2007-05-22 | Arraycomm Llc | External correction of errors between traffic and training in a wireless communications system |
US6999794B1 (en) | 2002-06-28 | 2006-02-14 | Arraycomm Llc | Transmission of a common pilot channel from a beamforming transmit antenna array |
US7257101B2 (en) | 2002-07-03 | 2007-08-14 | Arraycomm, Llc | Selective power control messaging |
US7269389B2 (en) | 2002-07-03 | 2007-09-11 | Arraycomm, Llc | Selective power control messaging |
US7020109B2 (en) * | 2002-08-21 | 2006-03-28 | Qualcomm Incorporated | Method and system for communicating content on a broadcast services communication system |
US7016327B2 (en) * | 2002-08-21 | 2006-03-21 | Qualcomm Incorporated | Method and system for communicating content on a broadcast services communication system |
AU2003270021A1 (en) | 2002-08-29 | 2004-03-19 | Zyray Wireless, Inc. | Adaptive pilot interference cancellation in cdma systems |
JP4412926B2 (ja) * | 2002-09-27 | 2010-02-10 | 株式会社エヌ・ティ・ティ・ドコモ | 適応等化装置及びそのプログラム |
KR100651434B1 (ko) * | 2002-10-05 | 2006-11-28 | 삼성전자주식회사 | 패킷 데이터 통신 시스템 수신기에서의 간섭신호 제거장치 및 방법 |
US7317750B2 (en) * | 2002-10-31 | 2008-01-08 | Lot 41 Acquisition Foundation, Llc | Orthogonal superposition coding for direct-sequence communications |
EP1561358B1 (en) | 2002-11-14 | 2014-12-17 | Qualcomm Incorporated | Wireless communication rate shaping |
WO2004073159A2 (en) * | 2002-11-15 | 2004-08-26 | Tensorcomm, Incorporated | Systems and methods for parallel signal cancellation |
US7155249B2 (en) | 2003-01-10 | 2006-12-26 | Qualcomm Incorporated | Modified power control for hybrid ARQ on the reverse link |
US7656936B2 (en) * | 2003-01-28 | 2010-02-02 | Cisco Technology, Inc. | Method and system for interference reduction in a wireless communication network using a joint detector |
US7099378B2 (en) * | 2003-01-30 | 2006-08-29 | The Mitre Corporation | Sub-symbol parallel interference cancellation |
US7299402B2 (en) | 2003-02-14 | 2007-11-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Power control for reverse packet data channel in CDMA systems |
US7120447B1 (en) | 2003-02-24 | 2006-10-10 | Nortel Networks Limited | Selectable mode vocoder management algorithm for CDMA based networks |
US7221722B2 (en) * | 2003-02-27 | 2007-05-22 | Motorola, Inc. | Method and apparatus for reducing interference within a communication system |
US7385944B2 (en) * | 2003-03-31 | 2008-06-10 | Lucent Technologies Inc. | Method of interference cancellation in communication systems |
JP4288093B2 (ja) | 2003-04-09 | 2009-07-01 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信制御システム及び無線通信制御方法 |
KR100981507B1 (ko) * | 2003-04-14 | 2010-09-10 | 삼성전자주식회사 | 블록 확산 코드분할 다중접속 이동통신 시스템에서 트래픽 발생 및 수신 장치 및 방법 |
AU2003251738A1 (en) | 2003-04-24 | 2004-11-26 | Bae Systems Information And Electronic Systems Integration, Inc. | Cross-system interference cancellation for multicarrier cdma and ofdm |
US7321780B2 (en) | 2003-04-30 | 2008-01-22 | Motorola, Inc. | Enhanced uplink rate selection by a communication device during soft handoff |
ZA200507981B (en) * | 2003-05-15 | 2007-04-25 | Ericsson Telefon Ab L M | Interference cancellation in wireless relaying network |
GB2403104B (en) | 2003-06-16 | 2006-06-14 | Inmarsat Ltd | Communication method and apparatus |
US7126928B2 (en) | 2003-08-05 | 2006-10-24 | Qualcomm Incorporated | Grant, acknowledgement, and rate control active sets |
US8804761B2 (en) * | 2003-08-21 | 2014-08-12 | Qualcomm Incorporated | Methods for seamless delivery of broadcast and multicast content across cell borders and/or between different transmission schemes and related apparatus |
US8694869B2 (en) * | 2003-08-21 | 2014-04-08 | QUALCIMM Incorporated | Methods for forward error correction coding above a radio link control layer and related apparatus |
US7352725B2 (en) * | 2003-08-21 | 2008-04-01 | Nokia Corporation | Communication method and arrangement in a code division multiple access (CDMA) radio system |
US7318187B2 (en) * | 2003-08-21 | 2008-01-08 | Qualcomm Incorporated | Outer coding methods for broadcast/multicast content and related apparatus |
FR2859328B1 (fr) | 2003-08-29 | 2005-11-25 | France Telecom | Procede et dispositif d'egalisation et de decodage iteratif pour communications haut-debit sur canaux a antennes multiples en emission et en reception |
US7391803B2 (en) * | 2003-09-02 | 2008-06-24 | Nokia Corporation | Interference suppression in a receiver during at least one of idle state and access state operation |
US7437135B2 (en) * | 2003-10-30 | 2008-10-14 | Interdigital Technology Corporation | Joint channel equalizer interference canceller advanced receiver |
US7623553B2 (en) * | 2003-11-03 | 2009-11-24 | Qualcomm Incorporated | Method, apparatus, and system for data transmission and processing in a wireless communication environment |
JP2005198223A (ja) | 2004-01-07 | 2005-07-21 | Satoshi Suyama | マルチキャリアにおけるパケット伝送用マルチユーザ検出受信機 |
US7668561B2 (en) | 2004-02-27 | 2010-02-23 | Qualcomm Incorporated | Apparatus and method for controlling reverse link interference among access terminals in wireless communications |
US7551664B2 (en) * | 2004-09-17 | 2009-06-23 | Nokia Corporation | Iterative and turbo-based method and apparatus for equalization of spread-spectrum downlink channels |
KR100648472B1 (ko) * | 2004-10-19 | 2006-11-28 | 삼성전자주식회사 | 다중 송신 다중 수신 안테나 통신 시스템에서 적응 변조및 부호 성능을 최적화하기 위한 송·수신 장치 및 방법 |
US7515877B2 (en) * | 2004-11-04 | 2009-04-07 | Magnolia Broadband Inc. | Communicating signals according to a quality indicator and a time boundary indicator |
US8406695B2 (en) * | 2004-12-23 | 2013-03-26 | Qualcomm Incorporated | Joint interference cancellation of pilot, overhead and traffic channels |
US8422955B2 (en) * | 2004-12-23 | 2013-04-16 | Qualcomm Incorporated | Channel estimation for interference cancellation |
US8442441B2 (en) * | 2004-12-23 | 2013-05-14 | Qualcomm Incorporated | Traffic interference cancellation |
US8099123B2 (en) * | 2004-12-23 | 2012-01-17 | Qualcomm Incorporated | Adaptation of transmit subchannel gains in a system with interference cancellation |
EP1844558B1 (en) * | 2005-01-05 | 2018-02-14 | ATC Technologies, LLC | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US20070002724A1 (en) * | 2005-06-15 | 2007-01-04 | Samsung Electronics Co., Ltd. | Apparatus and method for broadcast superposition and cancellation in a multi-carrier wireless network |
US7480497B2 (en) * | 2005-06-29 | 2009-01-20 | Intel Corporation | Multicarrier receiver and method for carrier frequency offset correction and channel estimation for receipt of simultaneous transmissions over a multi-user uplink |
US8472877B2 (en) * | 2005-10-24 | 2013-06-25 | Qualcomm Incorporated | Iterative interference cancellation system and method |
KR100988837B1 (ko) * | 2005-11-18 | 2010-10-20 | 삼성전자주식회사 | 통신 시스템에서 다운링크 신호 송수신 장치 및 방법 |
US7881412B2 (en) * | 2005-11-21 | 2011-02-01 | Qualcomm Incorporated | Quasi-linear interference cancellation for wireless communication |
US8630378B2 (en) * | 2005-12-06 | 2014-01-14 | Qualcomm Incorporated | Interference cancellation with improved estimation and tracking for wireless communication |
US8385388B2 (en) * | 2005-12-06 | 2013-02-26 | Qualcomm Incorporated | Method and system for signal reconstruction from spatially and temporally correlated received samples |
US20070165704A1 (en) * | 2006-01-19 | 2007-07-19 | Lucent Technologies Inc. | Method for auxiliary pilot cancellation in wireless network reverse link |
US9130791B2 (en) * | 2006-03-20 | 2015-09-08 | Qualcomm Incorporated | Uplink channel estimation using a signaling channel |
KR200428772Y1 (ko) | 2006-07-20 | 2006-10-16 | 주식회사 성창엔지니어링 | 냉각수 여과 살균 유닛 |
-
2005
- 2005-07-29 US US11/192,503 patent/US8422955B2/en not_active Expired - Fee Related
- 2005-12-22 BR BRPI0519545-4A patent/BRPI0519545A2/pt not_active IP Right Cessation
- 2005-12-22 KR KR1020077016909A patent/KR100938730B1/ko active IP Right Grant
- 2005-12-22 CA CA002592496A patent/CA2592496A1/en not_active Abandoned
- 2005-12-22 JP JP2007548616A patent/JP4567751B2/ja not_active Expired - Fee Related
- 2005-12-22 MX MX2007007768A patent/MX2007007768A/es active IP Right Grant
- 2005-12-22 CN CN2010105997371A patent/CN102035569B/zh not_active Expired - Fee Related
- 2005-12-22 EP EP10158851.5A patent/EP2204916B1/en not_active Not-in-force
- 2005-12-22 EP EP05856105.1A patent/EP1834417B1/en not_active Not-in-force
- 2005-12-22 RU RU2007128073/09A patent/RU2364023C2/ru not_active IP Right Cessation
- 2005-12-22 WO PCT/US2005/047642 patent/WO2006072088A1/en active Application Filing
- 2005-12-22 AU AU2005321821A patent/AU2005321821B2/en not_active Ceased
- 2005-12-23 TW TW094146374A patent/TW200703942A/zh unknown
-
2007
- 2007-06-18 IL IL184022A patent/IL184022A0/en unknown
- 2007-06-22 NO NO20073237A patent/NO20073237L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR100938730B1 (ko) | 2010-01-26 |
TW200703942A (en) | 2007-01-16 |
EP1834417A1 (en) | 2007-09-19 |
US8422955B2 (en) | 2013-04-16 |
BRPI0519545A2 (pt) | 2009-02-17 |
JP2008526136A (ja) | 2008-07-17 |
CN102035569B (zh) | 2013-10-09 |
EP2204916B1 (en) | 2019-07-24 |
EP2204916A1 (en) | 2010-07-07 |
CN102035569A (zh) | 2011-04-27 |
IL184022A0 (en) | 2007-10-31 |
RU2364023C2 (ru) | 2009-08-10 |
AU2005321821B2 (en) | 2010-05-27 |
MX2007007768A (es) | 2007-08-21 |
NO20073237L (no) | 2007-09-21 |
JP4567751B2 (ja) | 2010-10-20 |
AU2005321821A1 (en) | 2006-07-06 |
US20060141933A1 (en) | 2006-06-29 |
WO2006072088A1 (en) | 2006-07-06 |
KR20070091214A (ko) | 2007-09-07 |
EP1834417B1 (en) | 2018-12-12 |
CA2592496A1 (en) | 2006-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2007128073A (ru) | Оценка канала для подавления помех | |
KR101376672B1 (ko) | 파일럿 간섭 제거 | |
JP2520535B2 (ja) | Cdmaスペクトル拡散無線伝送システムにおける無線信号の受信装置 | |
JP4554860B2 (ja) | チャネル分離および逐次キャンセルによる同一チャネル信号受信機および受信方法 | |
JP3081642B2 (ja) | Cdmaサブトラクティブ復調 | |
JP3337217B2 (ja) | 選択レイ結合レーキ受信機 | |
RU2007127883A (ru) | Совместное подавление помех в канале передачи пилот-сигналов, в канале передачи служебных сигналов и в канале трафика | |
US6137843A (en) | Methods and apparatus for canceling adjacent channel signals in digital communications systems | |
US7389099B2 (en) | Method and apparatus for canceling interference from high power, high data rate signals | |
KR101209135B1 (ko) | 파일럿 시퀀스 신호를 검색하는 방법, 설비 및 시스템 | |
RU2007127836A (ru) | Подавление помех в трафике | |
EP1501230A2 (en) | Hybrid turbo-MUD for multiple access systems | |
US20090213907A1 (en) | Method and Apparatus for Block-Based Signal Demodulation | |
WO1993003556A1 (en) | Cdma subtractive demodulation | |
US10447340B2 (en) | Devices and methods employing hermetic transforms for encoding and decoding digital information in spread-spectrum communication systems | |
CN101888259A (zh) | 用于码分多址通信的方法、装置和系统 | |
KR100698125B1 (ko) | 간섭 제거 방법과, 그를 위한 통신단말기 | |
CN103918194A (zh) | 消除带内干扰的装置和方法 | |
JP5118488B2 (ja) | チャネル推定 | |
JP2004229305A (ja) | Wcdmaシステムでのセル探索の方法および装置 | |
EP1757051A1 (en) | Apparatus and method for iteratively estimating a channel transfer function | |
JP5826401B2 (ja) | 帯域内干渉の除去装置及び方法 | |
CN111490955A (zh) | 一种在大频偏下实现同步头搜索的方法及装置 | |
CA2389588A1 (fr) | Procede et dispositif pour demoduler des signaux provenant de multi-utilisateurs | |
Huovinen et al. | Blind source separation based successive interference cancellation in the DS-CDMA uplink |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20201223 |