[특허]Use of correlation combination to achieve channel detection

Use of correlation combination to achieve channel detection 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04W-056/00 H04B-001/709 H04B-007/26 H04B-001/7075 H04J-013/00
출원번호	US-0952474 (2015-11-25)
등록번호	US-10064144 (2018-08-28)
발명자 / 주소	Proctor, James A.
출원인 / 주소	INTEL CORPORATION
대리인 / 주소	Womble Bond Dickinson (US) LLP
인용정보	피인용 횟수 : 0 인용 특허 : 41

초록 ▼

Combinations of correlation results are used to achieve detection of multiple coded signals at a receiver in a wireless communications system. The code applied to signals includes a lower rate code and a higher rate code. The lower rate code is a nested or tiered code such that it comprises at least two code sequences of the higher rate code. The received coded signal is correlated with the higher rate code using a single higher rate correlator to provide a higher rate code correlation result. The higher rate code correlation results are fed to two or more lower rate code correlators that combine multiple higher rate code-correlation results, each using a different lower rate code, to provide corresponding lower rate code correlation results. The presence of at least one coded signal or mutually exclusive coded signals can be determined from the lower rate code correlation results.

대표청구항 ▼

1. A method for use in wireless communications, the method comprising: receiving a message in a time slot;decoding the received message by performing a plurality of correlations involving higher and lower rate codes and a received coded signal, wherein at least one lower rate code includes at least two code sequences of a higher rate code, andcomparing results of the plurality of correlations to determine presence of a signal indication; andperforming synchronization with an access unit based on the decoded received message. 2. The method defined in claim 1 wherein performing a plurality of correlations comprises: correlating a higher rate code correlation result with a first lower rate code to provide a first lower rate code correlation result; andcorrelating the higher rate code correlation result with a second lower rate code to provide a second lower rate code correlation result. 3. The method defined in claim 1 wherein comparing results of the plurality of correlations comprises comparing a first correlation result to a second correlation result to determine presence of a signal indication, wherein the first correlation result is generated by performing a first correlation with a first lower rate code, and wherein the second correlation result is generated by performing a second correlation with a second lower rate code. 4. The method defined in claim 1 wherein the received coded signal is received periodically. 5. The method defined in claim 1 wherein the lower rate codes are orthogonal to each other. 6. The method defined in claim 1 wherein the lower rate codes are Walsh codes. 7. The method defined in claim 1 wherein the lower rate codes are Gutleber codes. 8. The method defined in claim 1 wherein the lower rate codes are maximum length sequences. 9. The method defined in claim 1 wherein the lower rate codes are PN-sequences. 10. The method defined in claim 1 wherein the higher rate code comprises 32 chips and each of the lower rate codes comprises 128 chips. 11. The method defined in claim 1 wherein the lower rate codes are used for timing signals. 12. A mobile wireless device comprising: a receiver to receive a coded signal, wherein a code applied to the received coded signal includes a lower rate code comprising at least two code sequences of a higher rate code;one or more correlators coupled with the receiver to perform a plurality of correlations involving higher and lower rate codes and the received coded signal, wherein at least one lower rate code includes at least two code sequences of a higher rate code; anda comparator coupled with the one or more correlators to compare results of the plurality of correlations to determine presence of a signal indication. 13. The mobile wireless device of claim 12 wherein the one or more correlators are operable to: correlate a higher rate code correlation result with a first lower rate code to provide a first lower rate code correlation result; andcorrelate the higher rate code correlation result with a second lower rate code to provide a second lower rate code correlation result. 14. The mobile wireless device of claim 12 wherein the comparator is operable to compare results of the plurality of correlations by comparing a first correlation result generated by performing a first correlation with a first lower rate code to a second correlation result generated by performing a second correlation with a second lower rate code. 15. The mobile wireless device of claim 12 wherein the received coded signal is received periodically. 16. The mobile wireless device of claim 12 wherein the lower rate codes are orthogonal to each other. 17. The mobile wireless device of claim 12 wherein the lower rate codes are Walsh codes. 18. The mobile wireless device of claim 12 wherein the lower rate codes are Gutleber codes. 19. The mobile wireless device of claim 12 wherein the lower rate codes are maximum length sequences. 20. The mobile wireless device of claim 12 wherein the lower rate codes are PN-sequences. 21. The mobile wireless device of claim 12 wherein the higher rate code is 32 chips in length and the lower rate codes are 128 chips in length. 22. The mobile wireless device of claim 12 wherein the lower rate codes are used for timing signals. 23. The mobile device of claim 12 further comprising: a demodulator coupled with the receiver, the demodulator to demodulate the received coded signal into in-phase and quadrature components, andwherein the one or more correlators are coupled with the demodulator and correlate the in-phase and quadrature components with the higher rate code to provide higher rate code correlation result, correlate higher rate code correlation results with a first lower rate code to provide a first lower rate code correlation result, and correlate higher rate code correlation results with a second lower rate code to provide a second lower rate code correlation result. 24. The mobile wireless device of claim 12 wherein the lower rate codes are selected based on a priori system information. 25. The mobile wireless device as in claim 12 wherein the lower codes are nested codes comprising at least two code sequences of a base code and N nested lower rate codes are selected from of a set of M possible nested codes.

이 특허에 인용된 특허 (41)

Bhagalia Shashikant,GBX ; Yeung Joemanne Chi Cheung,GBX ; Cooper Ian L.,GBX ; Lysejko Martin,GBX ; Cooper Guy A.,GBX ; Thompson Jonathan A.,GBX, Apparatus and method of establishing and maintaining communication paths in a wireless telecommunications system.
상세보기
Cox, Timothy F.; Natali, Francis D.; Ohlson, John E.; Talwar, Shilpa, Apparatus for incorporating multiple data rates in an orthogonal direct sequence code division multiple access (ODS-CDMA) communications system.
상세보기
Katsuhiko Tsunehara JP; Takashi Yano JP; Nobukazu Doi JP; Takaki Uta JP; Keiji Hasegawa JP, CDMA communication system and its transmission power control method.
상세보기
Masui, Hironari; Ohgoshi, Yasuo; Yano, Takashi; Doi, Nobukazu, CDMA mobile communications system and communication method.
상세보기
Kim, Jae-Yoel; Kim, Young-Ky; Kang, Hee-Won; Maeng, Seung-Joo, Channel spreading device and method for CDMA communication system.
상세보기
Subramanian, Ravi, Configurable multimode despreader for spread spectrum applications.
상세보기
Park Jong-Hyeon,KRX ; Kim Je-Woo,KRX, Data transmitter and receiver of a DS-CDMA communication system.
상세보기
Lee Byeong-Ho,KRX ; Park Jong-Hyeon,KRX, Data transmitter and receiver of a spread spectrum communication system using a pilot channel.
상세보기
Koo, Chang-Hoi; Lee, Hyun-Seok; Kim, Dae-Gyun; Chang, Hoon; Lee, Sung-Won, Data transmitting method in a CDMA system.
상세보기
Abe Masami,JPX ; Iwata Jun,JPX, Decoder with an error control adaptively applied on the basis of the estimated position of a slot in a frame.
상세보기
Moon, Hi-Chan, Device and method for communicating reverse pilot signal in mobile communication system.
상세보기
Hatzipapafotiou Dimitrios, Enhanced access burst for random access channels in TDMA mobile satellite system.
상세보기
Robert G. Wilkinson GB, High data rate multiplexed multichannel high frequency broadcast system.
상세보기
Joseph P. Odenwalder ; Franklin P. Antonio ; Edward G. Tiedemann, Jr. ; Yu-Cheun Jou, High-data-rate supplemental channel for CDMA telecommunications system.
상세보기
Odenwalder Joseph P. ; Antonio Franklin P. ; Tiedemann ; Jr. Edward G. ; Jou Yu-Cheun, High-data-rate supplemental channel for CDMA telecommunications system.
상세보기
Nelson, Jr.,G. Rodney; Hoffmann,John E.; Rouphael,Antoine J.; Proctor, Jr.,James A., Maintenance link using active/standby request channels.
상세보기
Chang, Li Fung; Chawla, Kapil K.; Chuang, Justin C.; Qiu, Xiaoxin; Sollenberger, Nelson R., Medium access control layer for packetized wireless systems.
상세보기
Bruckert Eugene (Arlington Heights IL), Method and apparatus for canceling spread-spectrum noise.
상세보기
Saints Keith W. ; Tiedemann ; Jr. Edward G., Method and apparatus for processing power control signals in CDMA mobile telephone system.
상세보기
De Angeli,Alfonso; De Benedittis,Rossella; Marnoni,Luca, Method and system to synchronize mobile units to a base transceiver station.
상세보기
Raith Krister A. (Durham NC) Dent Paul W. (Stehag SEX), Method of and apparatus for selective resynchronization in a digital cellular communications system.
상세보기
Lilja, Harri; Vallstr?m, Jari, Method to determine channel information in a cellular system, and a mobile station.
상세보기
Gutleber Frank S. (Little Silver NJ), Multilevel noise code mate pair generation and utilization of such codes.
상세보기
Mellado Augusto Guilabert,ESX ; Vale Porben Jose Antonio,ESX ; Gonzalez Martinez Jorge,ESX, Multiline PCM interface for signal processing.
상세보기
Ohlson, John E.; Martin, Donald R., Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications.
상세보기
Bang Seung Chan,KRX ; Shim Jae Ryong,KRX ; Han Ki Chul,KRX ; Kim Jung Im,KRX ; Kim Tae Joong,KRX, Orthogonal complex spreading method for multichannel and apparatus thereof.
상세보기
Eriksson,G？ran, Physical channel relation system/method for use in cellular telecommunications network.
상세보기
Fenton Patrick (Calgary CAX), Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time.
상세보기
Ben-Bassat, David; Lerner, Moshe, RF modem utilizing saw resonator and correlator and communications transceiver constructed therefrom.
상세보기
Kanzaki Kiyoko (Kamakura JPX) Takahashi Hidehiro (Yokohama JPX), Radio communication system.
상세보기
Lyckeg.ang.rd, Bo; Esmailzadeh, Riaz; Nystrom, Johan; Dahlman, Erik; Chennakeshu, Sandeep; Jamal, Karim, Random access in a mobile telecommunications system.
상세보기
Odenwalder Joseph P., Reduced peak-to-average transmit power high data rate CDMA wireless communication system.
상세보기
Wiedeman Robert A. ; Monte Paul A., Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways.
상세보기
Abramson Norman (Honolulu HI), Spread aloha CDMA data communications.
상세보기
Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Viterbi Andrew J. (La Jol, System and method for generating signal waveforms in a CDMA cellular telephone system.
상세보기
Ariyavisitakul Sirikiat (Eatontown NJ) Chang Li F. (Marlboro NJ) Sollenberger Nelson R. (Tinton Falls NJ), Technique for jointly performing bit synchronization and error detection in a TDM/TDMA system.
상세보기
Barrow David E., Timing signal generator for digital communication system.
상세보기
Laroia, Rajiv; Li, Junyi; Uppala, Sathyadev Venkata, Transmission of mobile requests in wireless uplink system.
상세보기
Kitade, Takashi; Miya, Kazuyuki; Hiramatsu, Katsuhiko, Transmission/reception apparatus and transmit power control method.
상세보기
Proctor, Jr., James A., Use of correlation combination to achieve channel detection.
상세보기
Spartz Michael K. ; Agre Daniel H. ; Robbins Barry R., Wireless telecommunications system utilizing CDMA radio frequency signal modulation in conjunction with the GSM A-interf.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Use of correlation combination to achieve channel detection 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (41)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Use of correlation combination to achieve channel detection 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (41)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트