Method and apparatus for adjustments for delta-based power control in wireless communication systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-007/185
H04B-007/00
출원번호
US-0848865
(2007-08-31)
등록번호
US-8442572
(2013-05-14)
발명자
/ 주소
Borran, Mohammad Jaber
Khandekar, Aamod
Gorokhov, Alexei
Ji, Tingfang
Bhushan, Naga
Zhang, Xin
Kannan, Arumugam Chendamarai
출원인 / 주소
QUALCOMM Incorporated
대리인 / 주소
Juneau, Darrell Scott
인용정보
피인용 횟수 :
22인용 특허 :
118
초록▼
Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse
Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse link transmission after a predetermined period of silence or after receiving indications of interference from neighboring access points. A delta value can be computed through open-loop projection, based on which transmission resources such as bandwidth and/or transmit power can be increased or decreased to manage interference caused by the terminal. A delta value, other feedback from the terminal, and/or indications of interference caused by the terminal can also be communicated as feedback to a serving access point to allow the access point to assign transmission resources for the terminal.
대표청구항▼
1. A method for power control in a wireless communication system, comprising: determining at a given time whether a preceding transmission occurred at a time preceding the given time by less than a predetermined timing threshold; andif the determining indicates the preceding transmission did not occ
1. A method for power control in a wireless communication system, comprising: determining at a given time whether a preceding transmission occurred at a time preceding the given time by less than a predetermined timing threshold; andif the determining indicates the preceding transmission did not occur at a time preceding the given time by less than the predetermined timing threshold, then, computing one or more of an open loop delta value, an open loop delta value based on an assigned bandwidth, and a bandwidth based on a delta value, andadjusting one or more parameters to be used for a future transmission based at least in part on the computed values. 2. The method of claim 1, wherein the predetermined timing threshold is based on at least one of frames, a number of superframes, and a time period. 3. The method of claim 1, wherein the adjusting one or more parameters to be used for a future transmission includes adjusting a transmit power offset to be used for a future transmission. 4. The method of claim 1, wherein the adjusting one or more parameters to be used for a future transmission includes adjusting a bandwidth utilized for a future transmission. 5. The method of claim 1, wherein the adjusting one or more parameters to be used for a future transmission includes: adjusting a power spectral density (PSD) as a function of a computed open loop delta value; andadjusting a transmit power to be used for the future transmission based on the adjusted PSD. 6. The method of claim 1, wherein the adjusting one or more parameters to be used for a future transmission includes: determining whether an OSI (other sector interference) indication corresponding to the preceding transmission has been received; andadjusting one or more parameters to be used for the future transmission based at least in part on whether the OSI indication has been received. 7. The method of claim 6, wherein, if an OSI indication corresponding to the preceding transmission has been received, then the adjustment of one or more parameters to be used for the future transmission further includes: selecting a lowest transmit power used within a predetermined period of time that caused the OSI indication; andadjusting a transmit power to be used for the future transmission to the selected transmit power minus a delta value. 8. The method of claim 6, wherein, if an OSI indication corresponding to the preceding transmission has not been received, then the adjustment of one or more parameters to be used for the future transmission further includes: selecting a highest transmit power used within a predetermined period of time that did not cause an OSI indication, andadjusting a transmit power to be used for a future transmission to the selected transmit power plus a delta value. 9. The method of claim 1, wherein the adjustment of one or more parameters to be used for a future transmission includes: receiving an assignment for one or more parameters to be used for the future transmission from an access point; andadjusting the one or more parameters based on the assignment. 10. The method of claim 1, further comprising communicating one or more of the computed values and the adjusted parameters to an access point. 11. An apparatus that facilitates reverse link power control in a wireless communication system, comprising: means for conducting a transmission to a serving sector on a reverse link;means for determining whether the transmission occurred after a predetermined timing threshold after a preceding transmission to the serving sector;means for computing, upon a positive determination that the transmission occurred after the predetermined timing threshold after the preceding transmission, at least one of an open loop delta value, an open loop delta value based on an assigned bandwidth, or a bandwidth based on a delta value; andmeans for adjusting a parameter utilized for conducting transmissions to the serving sector based on the computed value. 12. The apparatus of claim 11, wherein the means for adjusting includes means for adjusting one or more of a transmit power offset and a bandwidth utilized for conducting transmissions to the serving sector. 13. The apparatus of claim 11, wherein the means for adjusting includes: means for adjusting a PSD based on the computed value; andmeans for adjusting a transmit power utilized for conducting transmissions to the serving sector based on the adjusted PSD. 14. The apparatus of claim 11, wherein the means for adjusting includes: means for receiving an assigned parameter from the serving sector; andmeans for adjusting a parameter utilized for communications with the serving sector based on the assigned parameter. 15. The apparatus of claim 11, further comprising means for communicating one or more of the computed value and the adjusted parameters to the serving sector. 16. The method of claim 1, wherein the computing is based at least in part on a maximum allowable inter-cell interference. 17. The method of claim 1, wherein the adjusting comprises: determining whether an OSI (other sector interference) indication corresponding to the preceding transmission has been received;selecting one of a lowest and a highest transmit power used within a predetermined period of time based on whether the OSI indication was received; andadjusting a transmit power to be used for a future transmission based on the selected transmit power and a delta value. 18. A mobile device comprising memory and a processor configured to perform a method comprising: determining at a given time whether a preceding transmission occurred at a time preceding the given time by less than a predetermined timing threshold; andif the determining indicates the preceding transmission did not occur at a time preceding the given time by less than the predetermined timing threshold, then, computing one or more of an open loop delta value, and open loop delta value based on an assigned bandwidth, and a bandwidth based on an assigned delta value, wherein the computing is based at least in part on a maximum allowable inter-cell interference parameter; andadjusting one or more parameters to be used for a future transmission based at least in part on the computed values. 19. The mobile device of claim 18, wherein the predetermined timing threshold is based on at least one of: a number of frames,a number of superframes, anda timing period. 20. A mobile device for power control in a wireless communication system, comprising: means for determining at a given time whether a preceding transmission occurred at a time preceding the given time by less than a predetermined timing threshold;means for computing, upon a positive determination that the transmission occurred at a time preceding the given time by less than the predetermined timing threshold, one or more of an open loop delta value, an open loop delta value based on an assigned bandwidth, and a bandwidth based on an assigned delta value, wherein the computations are based in part on a maximum allowable inter-cell interference parameter; andmeans for adjusting one or more parameters to be used for a future transmission based at least in part on the computed values. 21. A non-volatile, non-transitory, computer-readable storage medium comprising code for a causing a computer to: determine at a given time whether a preceding transmission occurred at a time preceding the given time by less than a predetermined timing threshold;compute, upon a positive determination that the transmission occurred at a time preceding the given time by less than the predetermined timing threshold, one or more of an open loop delta value, an open loop delta value based on an assigned bandwidth, and a bandwidth based on a delta value, wherein the computations are based in part on a maximum allowable inter-cell interference parameter; andadjust one or more parameters to be used for a future transmission based at least in part on the computed values. 22. A method in a wireless communication system to facilitate reverse link power control, the method comprising: conducting a transmission to a serving section on a reverse link;determining whether the transmission occurred after a predetermined timing threshold after a preceding transmission;computing, upon a positive determination that the transmission occurred after the predetermined timing threshold after the preceding transmission, at least one of an open loop delta value, an open loop delta value based on an assigned bandwidth, or a bandwidth based on a delta value; andadjusting a parameter utilized for conducting transmissions to the serving sector based on the computed value. 23. The method of claim 1, further comprising receiving an OSI indicator from a neighboring cell.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (118)
Soliman Samir S., Accurate open loop power control in a code division multiple access communication system.
Reudink, Mark D.; Rothaar, Bruce C.; Prismantas, Jerry, Adaptive beam pattern antennas system and method for interference mitigation in point to multipoint RF data transmissions.
Larsson Per .ANG.ke,SEX ; Frodigh Carl Magnus,SEX ; Almgren Knut Magnus,SEX, Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system.
Glauner Martin,DEX ; Eckstein Tillmann,DEX ; Bollmann Andreas,DEX, Apparatus and method for improvement of transmission quality in a point-to-multipoint radio transmission system.
Won,Seouk Ho; Lyu,Deuk Su; Ahn,Jae Min; Kim,Whan Woo, Apparatus for measuring signal-to-interference ration in multiple antenna high data rate packet transmission system and method thereof.
Ishikawa, Yoshihiro; Watanabe, Yasuyuki; Sato, Takaaki, Call acceptance control method for CDMA mobile radio communication system and mobile station device.
Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad; Zeira, Ariela, Common control channel uplink power control for adaptive modulation and coding techniques.
Visotsky Yevgeny ; Frank Colin D. ; Madhow Upamanyu ; Singh Rahul, Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system.
Kim,Ki Jun; Kim,Young Cho; Lee,Young Jo; An,Jong Hoe; Yun,Young Woo; Kim,Young Jun, Controlling data transmission rate on the reverse link for each mobile station in a dedicated manner.
Park, Jin-Soo; Ahn, Jae-Min; Kim, Young-Ky, Device and method for controlling initial transmission power of forward link channel in mobile communications system.
Nieczyporowicz Leon L ; Giallorenzi Thomas R ; Stephenson Philip L ; Sylvester Randal R, Fixed wireless loop system having adaptive system capacity based on estimated signal to noise ratio.
Cooper Guy A.,GBX ; Nethercott Jonathan F.,GBX ; Thompson Jonathan A.,GBX, Handling of commands passed between the server and client stations of a telecommunications system.
Chen, Tao; Holtzman, Jack M.; Ling, Fuyun; Saints, Keith; Sindhushayana, Nagabhushana; Wheatley, III, Charles E., Method and apparatus for adjusting power control setpoint in a wireless communication system.
Saints Keith W. ; Chen Tao, Method and apparatus for adjusting thresholds and measurements of received signals by anticipating power control commands yet to be executed.
Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (Boulder CO) Bender Paul E. (San Diego CA), Method and apparatus for balancing the forward link handoff boundary to the reverse link handoff boundary in a cellular.
Farnsworth, Andrew John; Norton, Mark Dennis, Method and apparatus for calculating an initial transmission power in universal mobile telecommunications system user equipment.
Reed John D. (Arlington TX) Rozanski ; Jr. Walter J. (Hurst TX), Method and apparatus for controlling a power level of a base station of a wireless communication system.
Gandhi, Asif D.; Song, Lei; Thomas, Mathew; Vitebsky, Stanley, Method and apparatus for controlling reverse link interference rise and power control instability in a wireless system.
Arens John W. (Cary IL) Borth David E. (Palatine IL) Kepler James F. M. (Northbrook IL), Method and apparatus for digital automatic gain control in a receiver.
Rezaiifar, Ramin; Holtzman, Jack, Method and apparatus for distributed optimal reverse link scheduling of resources, such as a rate and power in a wireless communication system.
Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
Peterzell Paul E. ; Kornfeld Richard K. ; Wheatley ; III Charles E. ; Weiland Ana, Method and apparatus for increasing receiver immunity to interference.
Peponides George M. (Encinitas CA) Wile Stacy (Carlsbad CA), Method and apparatus for reducing power consumption in cellular telephone by adaptively determining the reliability of t.
Kang Chang Soon,KRX ; Lee Hun,KRX ; Cho Cheol Hoi,KRX ; Kim Ki Seok,KRX, Method and apparatus of forward traffic channel power control for CDMA wireless local loop system.
Feeney Michael Stephen, Method and system for managing forward link power control within a code-division multiple access mobile telephone communication network.
Padovani Roberto (San Diego CA) Ziv Noam (San Diego CA), Method and system for the dynamic modification of control paremeters in a transmitter power control system.
Azman,Utku; Casado Fernandez,Monica; Newbury,Mark E; Yang,Hong; Zhou,Hai, Method for estimating the downlink capacity in a spread spectrum wireless communications system.
Kadaba,Srinivas R.; Khan,Farooq Ullah; Pittampalli,Eshwar; Rudrapatna,Ashok N.; Sundaram,Ganapathy Subramanian; Vasudevan,Subramanian; Yang,Yunsong, Multiple mode data communication system and method and forward and/or reverse link control channel structure.
Ohkubo,Shuichi; Honma,Hiromi; Ogawa,Masatsugu; Nakano,Masaki; Iwanaga,Toshiaki; Kashihara,Yutaka; Nagai,Yuuji, Optical disk, optical disk recording/reproduction apparatus, and optical disk signal quality evaluation method.
Osborne William P. (Melbourne FL) Hartman William F. (Palm Bay FL) Crabtree Luther L. (Melbourne FL), Pre-calibration of gain control circuit in spread-spectrum demodulator.
Skold Johan,SEX ; Hook Mikael,SEX ; Edvardsson Nils,SEX, Receiver apparatus, and associated method, for receiving a receive signal transmitted upon a channel susceptible to int.
Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA), Spread spectrum multiple access communication system using satellite or terrestrial repeaters.
Scheinert,Stefan; Lange,Peter, System and method for automatically configuring and integrating a radio base station into an existing wireless cellular communication network with full bi-directional roaming and handover capability.
Hottinen, Ari; Teittinen, Marko; Sunay, M. Oguz, System and method for effecting information transmission and soft handoff between frequency division duplex and time division duplex communications systems.
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.
Bruno Ronald ; Schuchman Leonard ; Cunningham Kenneth ; McCarthy Robert, System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS).
Khandekar, Aamod; Agrawal, Avneesh; Sutivong, Arak; Teague, Edward Harrison, Systems and methods that utilize a capacity-based signal-to-noise ratio to predict and improve mobile communication.
Ngai,Francis M.; Gholmieh,Aziz; Gerecht,Doug; Anderson,Jon J.; Panton,William R., Wireless terminal operating under an aggregate transmit power limit using multiple modems having fixed individual transmit power limits.
Hong, Young Jun; Kwon, Tae Soo; Shin, Chang Yong; Jang, Kyung Hun; Yu, Hee Jung; Kim, Hak Soo; Lee, Yong Hoon; Sung, Young Chul, Communication system of detecting victim terminal and performing interference coordination in multi-cell environments.
Ko, Young-Jo; Ahn, Jae Young; Seo, Bangwon, Cooperative communication method in cellular wireless communication system and terminal for performing the method.
Borran, Mohammad Jaber; Gorokhov, Alexei; Khandekar, Aamod; Ji, Tingfang; Kannan, Arumugam Chendamarai, Method and apparatus for fast other sector interference (OSI) adjustment.
Worrall, Chandrika; Baker, Matthew; Charriere, Patrick; Cheng, Fang-Chen, Methods of setting maximum output power for user equipment and reporting power headroom, and the user equipment.
Song, In Sang; Kim, Duck Hwan; Kim, Chul Soo; Park, Yun Kwon; Shin, Jea Shik, System for transmitting/receiving multi-band radio frequency signal using dual input, dual output filter.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.