[특허]Method and apparatus for power control in a spread spectrum communication system using threshold step-down size adjustme

[미국특허] Method and apparatus for power control in a spread spectrum communication system using threshold step-down size adjustme 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-001/69 H04J-013/02
출원번호	US-0616542 (1996-03-15)
발명자 / 주소	Love Robert T. Stewart Kenneth A. Bayer William R.
출원인 / 주소	Motorola, Inc.
대리인 / 주소	Haas
인용정보	피인용 횟수 : 34 인용 특허 : 8

초록 ▼

Power control in a spread-spectrum communication system takes place by dynamically adjusting the step-down size of a power control threshold (409, 413) based on an acquired number of poor-quality frames (405). The step-down size of the threshold is increased (413) or decreased (409) depending on an amount of frame erasures detected by the system. Additionally full-rate or sub-rate frame quality is used to dynamically adjust the step-down size of a power control threshold.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for power control in a spread-spectrum communication system where a base station compares an energy of a signal received from a remote unit to a threshold and instructs the remote unit to power up or power down based on the comparison, and the threshold is decreased by a first step-down size based on a quality of the signal received by the remote unit the apparatus comprising:a receiver for receiving a plurality of frames;a filter coupled to the receiver, said filter storing the plurality of frames to produce a plurality of stored frame attributes;a comparator coupled to the filter, said comparator determining an amount of poor-quality frames existing within the plurality of stored frame attributes to produce a determination of poor-quality frames; andan integrator coupled to said comparator, said integrator adjusting the first step-down size to produce a second step-down size based on the determination of poor-quality frames.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Ling Fuyun (Jamaica Plains MA), Method and apparatus for adjusting a power control threshold in a communication system.
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Muszynski Peter (Helsinki FIX), Method and apparatus for controlling signal quality in a CDMA cellular telecommunications.
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Ariyavisitakul Sirikiat (Tinton Falls NJ) Chuang Justin C. (Holmdel NJ) Sollenberger Nelson R. (Tinton Falls NJ), Method and apparatus for dynamic power control in TDMA portable radio systems.
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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.
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Hall Scott M. (Fort Worth TX), Method for compensating for capacity overload in a spread spectrum communication system.
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Hall Scott M. (Fort Worth TX), Method for controlling transmission power in a communication system.
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Kanai Toshihito (Tokyo JPX), Transmission power control system capable of keeping signal quality constant in mobile communication network.
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Wheatley ; III Charles E. (Del Mar CA), Transmitter power control system.
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이 특허를 인용한 특허 (34) 인용/피인용 타임라인 분석

Kim,Youn Sun; Kim,Dae Gyun; Choi,Ho Kyu; Kwon,Hwan Joon; Huh,Hoon; Yun,Yu Suk; Kim,Dong Hee, Apparatus and method for controlling power of reverse channels in a mobile communication system.
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Anderson, Nicholas; O'Neil, Rorie, Apparatus and method for power control in a radio communication system.
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Lomp, Gary R.; Ozluturk, Faith M.; Kowalski, John, Automatic power control system for a code division multiple access (CDMA) communications system.
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Ozluturk, Fatih M.; Jacques, Alexander M.; Lomp, Gary R.; Kowalski, John, Code division multiple access (CDMA) communication system.
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Okawa, Koichi; Ohno, Koji; Sawahashi, Mamoru; Uebayashi, Shinji; Okumura, Yukihiko, DS-CDMA transmission method.
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Attar, Rashid A.; Black, Peter J.; Bhushan, Naga, De-coupling forward and reverse link assignment for multi-carrier wireless communication systems.
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Tripathi, Nishith D., Enhanced power control algorithms for fixed wireless access systems.
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Kuo,Wen Yi, Error-rate management in wireless systems.
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Kusaki, Tsutomu; Sakamoto, Kenichi; Murakami, Masaru; Yokoyama, Takashi, Handover method in mobile communication system.
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Kyusojin, Hiroshi, Image decoder and image decoding method and program.
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Jain,Avinash; Holtzman,Jack M., Method and apparatus for congestion control in a wireless communication system.
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Jain,Avinash; Holtzman,Jack M., Method and apparatus for congestion control in a wireless communication system.
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Love Robert T. ; Ashley James P. ; Proctor Lee ; Barot Anil ; Cohen Arnie, Method and apparatus for controlling communication system capacity.
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Lin,Wei; Hsia,Daniel Jeng, Method and apparatus for fast convergent power control in a spread spectrum communication system.
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Morgan,William K.; Cordell,Donald P.; Smith,Erik C., Method and apparatus for full rate erasure handling in CDMA.
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Lin,Wei; Lee,Yuan Kang, Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements.
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Menich Barry J. ; TenBrook Keith A. ; Ritchie Thomas W. ; DeClerck Daniel J., Method and apparatus for performing soft-handoff in a wireless communication system.
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Neumiller Phillip D. ; Lei Peter ; Stewart Randall R., Method and selector for performing selection in a communication system.
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Au,Jean Put Ling; Attar,Rashid Ahmed, Method and system for a dynamic adjustment of a data request channel in a communication system.
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Shetty, Manoj; Vargantwar, Sachin R.; Oroskar, Siddarth S.; Doshi, Kamal; Goyal, Anoop K., Method and system for forward link and/or reverse link power control.
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Shetty, Manoj; Vargantwar, Sachin R.; Oroskar, Siddharth S.; Doshi, Kamal; Goyal, Anoop K., Method and system for forward link and/or reverse link power control.
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Feeney Michael Stephen, Method and system for managing forward link power control within a code-division multiple access mobile telephone communication network.
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Kurjenniemi, Janne, Method, device and system for power control step size selection based on received signal quality.
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Ulupinar, Fatih; Attar, Rashid; Esteves, Eduardo, Multi-state power control mechanism for a wireless communication system.
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Hämäläinen, Seppo; Lappeteläinen, Antti, Power control method of discontinuous transmission.
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Hämäläinen, Seppo; Lappeteläinen, Antti, Power control method of discontinuous transmission.
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H채m채l채inen,Seppo; Lappetel채inen,Antti, Power control method of discontinuous transmission.
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Cheng Terry Si-Fong ; Huang Ching Yao ; Huang Joe ; Yu Bee Yun, Processing overload control at base stations of cellular wireless communication systems.
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Jalali Ahmad, Signal to noise estimation of forward link traffic channel for fast power control.
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Kusaki, Tsutomu; Sakamoto, Kenichi; Murakami, Masaru; Yokoyama, Takashi, Switching center for mobile handover.
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Weaver, Carl Francis; Wu, Xiao Cheng, Synchronization of transmit power level settings for soft-handoff in wireless systems by the use of level constraints.
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Vanghi, Vieri, System and method for data burst communications in a CDMA network.
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Chang, Li Fung; Chawla, Kapil K.; Chuang, Justin Chi-I; Kostic, Zoran; Qiu, Xiaoxin; Sollenberger, Nelson Ray; Timiri, Shailender B., TDMA communication system having enhanced power control.
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Chang, Li Fung; Chawla, Kapil K.; Chuang, Justin Che-I; Qiu, Xiaoxin, Wireless network having joint power and data rate adaptation.
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[미국특허] Method and apparatus for power control in a spread spectrum communication system using threshold step-down size adjustme 원문보기