[특허]Selectively combining uplink signals in distributed antenna systems

Selectively combining uplink signals in distributed antenna systems 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04L-025/02 H04W-028/02 H04L-012/709 H04B-007/02 H04B-007/08
출원번호	US-0624195 (2015-02-17)
등록번호	US-9577922 (2017-02-21)
발명자 / 주소	Hanson, Van E. Ranson, Christopher G.
출원인 / 주소	CommScope Technologies LLC
대리인 / 주소	Fogg & Powers LLC
인용정보	피인용 횟수 : 0 인용 특허 : 193

초록 ▼

Certain aspects involve selectively combining uplink transmissions in a distributed antenna system (“DAS”). For example, a unit of the DAS can receive baseband uplink transmissions from remote units of the DAS via a first channel and a second channel. The unit can generate a first combined uplink signal by combining baseband uplink transmissions received from a first subset of the remote units via the first channel that include data for transmission to a base station. The unit can generate a second combined uplink signal that includes baseband uplink transmissions received from a second subset of the remote units via the second channel and excludes or attenuates baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that lack data for transmission to the base station are excluded or attenuated. The unit can transmit the combined uplink signals to the base station.

대표청구항 ▼

1. A method comprising: receiving baseband uplink transmissions from remote units of a distributed antenna system via a first channel and a second channel;generating a first combined uplink signal by combining a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel, wherein the first portion of the baseband uplink transmissions is determined to include data for transmission to a base station;generating a second combined uplink signal by combining a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel, wherein generating the second combined uplink signal comprises attenuating or excluding a third portion of the baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that is determined to lack data for transmission to the base station; andtransmitting the first combined uplink signal and the second combined uplink signal to the base station. 2. The method of claim 1, further comprising: determining that the first portion of the baseband uplink transmissions includes the data based on the first portion of the baseband uplink transmissions having a signal strength equal to or exceeding a threshold;determining that the third portion of the baseband uplink transmissions lacks the data based on the third portion of the baseband uplink transmissions having a signal strength less than the threshold. 3. The method of claim 1, further comprising: receiving spreading codes from the base station;determining that the first portion of the baseband uplink transmissions includes the data based on the first portion of the baseband uplink transmissions having at least one of the spreading codes; anddetermining that the third portion of the baseband uplink transmissions lacks the data based on the spreading codes being absent from the third portion of the baseband uplink transmissions. 4. The method of claim 1, further comprising determining that the first portion of the baseband uplink transmissions includes the data based on determining that at least one terminal device is utilizing an RF channel corresponding to the first channel and determining that the at least one terminal device is located within a threshold distance of the first subset of the remote units. 5. The method of claim 1, further comprising: receiving information from the base station identifying an RF channel that corresponds to the first channel and that is utilized by at least one terminal device; andselecting the first portion of the baseband uplink transmissions for inclusion in the first combined uplink signal based on the received information. 6. The method of claim 1, further comprising determining that no terminal devices are located within a threshold distance of an additional subset of the remote units, wherein an additional portion of the baseband uplink transmissions received from the additional subset of the remote units is excluded from or attenuated in at least one of the first combined uplink signal and the second combined uplink signal. 7. The method of claim 1, further comprising: receiving, by the remote units, uplink transmissions via an RF band including a first RF channel corresponding to the first channel and a second RF channel corresponding to the second channel;extracting the baseband uplink transmissions for the first channel from the received uplink transmissions in the first RF channel and extracting the baseband uplink transmissions for the second channel from the received uplink transmissions in the second RF channel; andtransmitting the baseband uplink transmissions to a unit of the distributed antenna system. 8. The method of claim 1, wherein the unit is further configured for: determining that the first portion of the baseband uplink transmissions includes the data based on the first portion of the baseband uplink transmissions having a signal strength equal to or exceeding a threshold;determining that the third portion of the baseband uplink transmissions lacks the data based on the third portion of the baseband uplink transmissions having a signal strength less than the threshold. 9. The method of claim 1, wherein the unit is further configured for: receiving spreading codes from the base station;determining that the first portion of the baseband uplink transmissions includes the data based on the first portion of the baseband uplink transmissions having at least one of the spreading codes; anddetermining that the third portion of the baseband uplink transmissions lacks the data based on the spreading codes being absent from the third portion of the baseband uplink transmissions. 10. The method of claim 1, wherein the unit is further configured for determining that the first portion of the baseband uplink transmissions includes the data based on determining that at least one terminal device is utilizing an RF channel corresponding to the first channel and determining that the at least one terminal device is located within a threshold distance of the first subset of the remote units. 11. The method of claim 1, wherein the unit is further configured for: receiving information from the base station identifying an RF channel that corresponds to the first channel and that is utilized by at least one terminal device; andselecting the first portion of the baseband uplink transmissions for inclusion in the first combined uplink signal based on the received information. 12. The method of claim 1, wherein the unit is further configured for determining that no terminal devices are located within a threshold distance of an additional subset of the remote units, wherein an additional portion of the baseband uplink transmissions received from the additional subset of the remote units is excluded from or attenuated in at least one of the first combined uplink signal and the second combined uplink signal. 13. A unit of a distributed antenna system, the unit comprising: a processing device configured for:receiving baseband uplink transmissions from remote units of the distributed antenna system via a first channel and a second channel,determining that a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel includes data for transmission to a base station,determining that a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel includes data for transmission to the base station, anddetermining that a third portion of the baseband uplink transmissions received from the first subset of the remote units lacks data for transmission to the base station;a combiner module included in or communicatively coupled to the processing device, the combiner module configured for:generating a first combined uplink signal by combining the first portion of the baseband uplink transmissions, andgenerating a second combined uplink signal by combining the second portion of the baseband uplink transmissions, wherein generating the second combined uplink signal comprises attenuating or excluding the third portion of the baseband uplink transmissions; anda transmitter configured for transmitting the first combined uplink signal and the second combined uplink signal to the base station. 14. The unit of claim 13, wherein the processing device is further configured for: determining that the first portion of the baseband uplink transmissions includes the data based on the first portion of the baseband uplink transmissions having a signal strength equal to or exceeding a threshold;determining that the third portion of the baseband uplink transmissions lacks the data based on the third portion of the baseband uplink transmissions having a signal strength less than the threshold. 15. The unit of claim 13, wherein the processing device is further configured for: receiving spreading codes from the base station;determining that the first portion of the baseband uplink transmissions includes the data based on the first portion of the baseband uplink transmissions having at least one of the spreading codes; anddetermining that the third portion of the baseband uplink transmissions lacks the data based on the spreading codes being absent from the third portion of the baseband uplink transmissions. 16. The unit of claim 13, wherein the processing device is further configured for determining that the first portion of the baseband uplink transmissions includes the data based on determining that at least one terminal device is utilizing an RF channel corresponding to the first channel and determining that the at least one terminal device is located within a threshold distance of the first subset of the remote units. 17. The unit of claim 13, wherein the processing device is further configured for: receiving information from the base station identifying an RF channel that corresponds to the first channel and that is utilized by at least one terminal device; andselecting the first portion of the baseband uplink transmissions for inclusion in the first combined uplink signal based on the received information. 18. The unit of claim 13, wherein the processing device is further configured for determining that no terminal devices are located within a threshold distance of an additional subset of the remote units, wherein the combiner module is configured for excluding or attenuating an additional portion of the baseband uplink transmissions received from the additional subset of the remote units in at least one of the first combined uplink signal and the second combined uplink signal. 19. The unit of claim 13, wherein the combiner module comprises an adder communicatively coupled to the processing device and an attenuator coupled to an input of the adder and configured for attenuating the third portion of the baseband uplink transmissions. 20. A distributed antenna system comprising: remote units configured forreceiving uplink transmissions via an RF band including a first RF channel corresponding to a first channel and a second RF channel corresponding to a second channel;extracting baseband uplink transmissions for the first channel from the received uplink transmissions in the first RF channel and extracting baseband uplink transmissions for the second channel from the received uplink transmissions in the second RF channel; andtransmitting the baseband uplink transmissions to a unit; andthe unit communicatively coupled to the remote units and configured for:generating a first combined uplink signal by combining a first portion of the baseband uplink transmissions received from a first subset of the remote units via the first channel, wherein the first portion of the baseband uplink transmissions is determined to include data for transmission to a base station,generating a second combined uplink signal by combining a second portion of the baseband uplink transmissions received from a second subset of the remote units via the second channel, wherein generating the second combined uplink signal comprises attenuating or excluding a third portion of the baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that are determined to lack data for transmission to the base station, andtransmitting the first combined uplink signal and the second combined uplink signal to the base station.

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Wala, Philip M., Point-to-multipoint digital radio frequency transport.
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Wala, Philip M., Point-to-multipoint digital radio frequency transport.
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Kinoshita Yasuaki (Hachioji JPX), Portable radio telephone system.
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Takagi Tasuku (Sendai JPX), Private branch radio communication system using optical fibers.
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van der Kaay Erik ; Dubovsky George S., RF communication signal distribution system and method.
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Mathis Ronald F. (San Diego CA), RF frequency multiplexed fiber optic data bus.
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Beasley Andrew,CAX, RF repeater arrangement with improved frequency reuse for wireless telephones.
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Kawamura, Teruo; Kishiyama, Yoshihisa; Higuchi, Kenichi; Sawahashi, Mamoru, Radio base station used in mobile communication system.
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Matsuyoshi, Toshimitsu; Ishida, Kaoru; Adachi, Hisashi, Radio communication base state system including optical advanced base station.
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Heidemann Rolf (Tamm DEX), Radio communication system.
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Kallander Stefan E. P. (Lidingo SEX) Charas Philippe (Amsterdam NLX), Radio coverage in closed environments.
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Sekiguchi Nobuo (Kodaira JPX) Fujiwara Yukinari (Musashimurayama JPX) Toya Mitsuo (Fujisawa JPX) Kaneko Yoichi (Tokorozawa JPX), Radio station system.
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Halpern Samuel W. (Matawan NJ), Radiotelephone transmission power control.
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Hamilton-Piercy Nicholas Francis,CAX ; Monteith Donald Graham,CAX ; Keay Roger David,CAX ; Hart George Maynard,CAX ; Yee Meng,CAX ; Oldfield Peter,CAX ; Leighton Philip,CAX ; O'Leary Edward,CAX, Radiotelephony system.
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Koonen, Antonius Marcellus Jozef, Re-configurable fibre wireless network.
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Miyoshi, Kenichi; Hiramatsu, Katsuhiko, Reception apparatus and reception method.
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Hamilton-Piercy Nicholas Francis,CAX ; Hart George Maynard,CAX ; O'Leary Edward,CAX, Remote antenna driver for a radio telephony system.
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Casper, Paul W.; Seiler, Norman C.; Nixon, Thomas J.; Waschka, Jr., George A.; Patisaul, Charles R.; Toy, James W.; Burton, Jr., Willie T.; Ashley, W. B.; Orlando, Jr., Fred J.; Giri, Ronald R.; Halp, Repeatered, multi-channel fiber optic communication network having fault isolation system.
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Wiorek Jonas,SEX ; Frodigh Magnus,SEX ; Beming Per,SEX ; Wallstedt Kenneth, Reuse of a physical control channel in a distributed cellular radio communication system.
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Michael T. Dawson ; Charles H. Bianchi ; Thomas J. Johnson, Reverse link antenna diversity in a wireless telephony system.
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Allan Farber IL; Mor Alon IL; Howard Loboda IL, Satellite distributed television.
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Wala Philip M., Scanning RSSI receiver system using inverse fast fourier transforms for a cellular communications system with centralized base stations and distributed antenna units.
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Snell Stephen C. (Aptos CA) Fisher Delmer D. (Milpitas CA), Scrambling method.
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Levin Jeffrey A. ; Easton Kenneth D. ; Hinderling Jurg ; Weaver ; Jr. Lindsay A. ; Brock Michael P., Serial linked interconnect for summation of multiple waveforms on a common channel.
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Dail James E., Shared hybrid fiber-coax network having reduced ingress noise in the upstream channel transmitted via a repeater.
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Roza Engel (Eindhoven NLX) van Veenendaal Hendrik G. (Eindhoven NLX), Signal distribution system.
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Silvia Joseph ; Graveline Stephen J., Signal filtering in a transceiver for a wireless telephone system.
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Sabat ; Jr. John ; Johnson Thomas J. ; Greenwood Kenneth C., Simulcast with hierarchical cell structure overlay.
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Kostresti Bruce ; Schneider Allan, Simulcasting digital video programs for broadcast and interactive services.
상세보기
Bauman, Donald R.; Wala, Philip M.; Toms, Jerry Edward, Small signal threshold and proportional gain distributed digital communications.
상세보기
Bauman,Donald R.; Wala,Philip M.; Toms,Jerry Edward, Small signal threshold and proportional gain distributed digital communications.
상세보기
Vanderpool Jeffrey S. (Colorado Springs CO), Spread spectrum wireless telephone system.
상세보기
Lysejko Martin,GBX ; Cooper Ian L.,GBX ; Gohlar Tarlochan S.,GBX, Subscriber terminal and method for passing control signals between a first and second signal processing units.
상세보기
McAllister, Donald; Ranson, Chris; Phillips, Fred William, Synchronous transfer of streaming data in a distributed antenna system.
상세보기
Naidu, Arun; Morelen, Steven, System and method for controlling the level of signals output to transmission media in a distributed antenna network.
상세보기
Kummetz, Thomas, System and method for detecting and measuring uplink traffic in signal repeating systems.
상세보기
Stratford, Scott B.; Yeung, Simon P. S.; Uyehara, Lance K.; Young, Robin Y. K., System and method for distributing wireless communication signals over metropolitan telecommunication networks.
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Wala, Philip M., System and method for enhancing the performance of wideband digital RF transport systems.
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Wala, Philip M., System and method for enhancing the performance of wideband digital RF transport systems.
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Naidu Arun ; Huffman Jacque, System and method for equalizing the delay time for transmission paths in a distributed antenna network.
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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.
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Naidu Arun ; Huffman Jacque ; Eckstein Larry, System and method for reducing cumulative noise in a distributed antenna network.
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Millar, Jeffrey R., System and method for retransmission of data.
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Millar,Jeffrey R., System and method for retransmission of data.
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Lemson, Paul H., System for controlling signal level at both ends of a transmission link based on a detected valve.
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Rothweiler Joseph H. (Bloomfield NJ), System for digital multiband filtering.
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Lappington John (Lawrenceville GA), System for distributing radio telephone signals over a cable television network.
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Sauer John M. ; Steinberg Paul ; Timbs Jeffrey L. ; Pedziwiatr Joseph ; Lovette Steve ; Sears Thomas L., System packet-based centralized base station controller.
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Cannon, Jeffrey J.; Zavadsky, Dean; Wala, Philip M., Systems and methods for improved digital RF transport in distributed antenna systems.
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Cannon, Jeffrey J.; Zavadsky, Dean; Wala, Philip M., Systems and methods for improved digital RF transport in distributed antenna systems.
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Dent Paul W. (Stehag SEX), TDMA/FDMA/CDMA hybrid radio access methods.
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Clifford Paul Thomas,GB3, Transmitters for radio telephone base stations.
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Das, Arnab; Hande, Prashanth; Rangan, Sundeep; Wu, Xinzhou, Uplink scheduling for OFDM systems.
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Lauder Gary M. (Atherton CA) Hoarty W. Leo (Santa Clara CA) Soske Joshua W. (Sunnyvale CA), User interface for selecting television information services through pseudo-channel access.
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Wade Robert Kent, Wavelength division multiplexing/demultiplexing devices using high index of refraction crystalline lenses.
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English Michael J. (Aurora CO) Farwell Charles Y. (Denver CO) Hearn Michael L. (Broomfield CO) Heidebrecht Richard M. (Boulder CO) Kissel David M. (Boulder CO) Miller Paul E. (Northglenn CO) Miller R, Wireless access telephone-to-telephone network interface architecture.
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Miyajima, Yoshinori, Wireless receiver, wireless receiving method, and recording medium.
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Fairfield Robert Charles ; Pagano ; II Carmine James ; Rucki John Stanley ; Simmons Michael Ralph ; Zappala Christopher F., Wireless telecommunications system architecture supporting block radio technology.
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Bouix Alain (Longjumeau FRX) Hilbert Claude (Issy les Moulineaux FRX), Wireless telephone network centralized maintenance method.
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Brendel Juergen ; Kring Charles J. ; Liu Zaide ; Marino Christopher C., World-wide-web server with delayed resource-binding for resource-based load balancing on a distributed resource multi-n.
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Freeburg Thomas A. (Arlington Heights IL), Zoned data communications system for communicating message signals between portable radios and a host computer.
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Chien-Yeh Lee William (Corona Del Mar CA), Zoned microcell with sector scanning for cellular telephone system.
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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

Selectively combining uplink signals in distributed antenna systems 원문보기

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연합인증

Selectively combining uplink signals in distributed antenna systems 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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