Method and apparatus in a CDMA base station for controlling transmit power during soft handoff
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0500426
(2000-02-09)
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발명자
/ 주소 |
- Hashem, Bassam M.
- Khaleghi, Farideh
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
3 |
초록
▼
In a CDMA cellular radio system during soft handoff the base stations interpret the conventional power control commands sent by the mobile station according to a majority vote thus reducing the probability of responding to an erroneous power control command. Alternatively, during soft handoff every
In a CDMA cellular radio system during soft handoff the base stations interpret the conventional power control commands sent by the mobile station according to a majority vote thus reducing the probability of responding to an erroneous power control command. Alternatively, during soft handoff every other power control command received is deliberately ignored. The base stations also synchronize their power levels periodically resulting in more optimum base station power transmission levels, in turn resulting in a reduction in system noise and an increase in system capacity.
대표청구항
▼
In a CDMA cellular radio system during soft handoff the base stations interpret the conventional power control commands sent by the mobile station according to a majority vote thus reducing the probability of responding to an erroneous power control command. Alternatively, during soft handoff every
In a CDMA cellular radio system during soft handoff the base stations interpret the conventional power control commands sent by the mobile station according to a majority vote thus reducing the probability of responding to an erroneous power control command. Alternatively, during soft handoff every other power control command received is deliberately ignored. The base stations also synchronize their power levels periodically resulting in more optimum base station power transmission levels, in turn resulting in a reduction in system noise and an increase in system capacity. 19981100, Baldwin; US-5835792, 19981100, Wise et al.; US-5838334, 19981100, Dye; US-5844576, 19981200, Wilde et al.; US-5850229, 19981200, Edelsbrunner et al.; US-5852451, 19981200, Cox et al.; US-5856829, 19990100, Gray, III et al.; US-5859645, 19990100, Latham; US-5861888, 19990100, Dempsey; US-5861893, 19990100, Strugess; US-5867166, 19990200, Myhrvold et al.; US-5870097, 19990200, Snyder et al.; US-5870098, 19990200, Gardiner; US-5870102, 19990200, Tarolli et al.; US-5870109, 19990200, McCormack et al.; US-5870587, 19990200, Danforth et al.; US-5872902, 19990200, Kuchkuda et al.; US-5874969, 19990200, Storm et al.; US-5877741, 19990300, Chee et
이 특허에 인용된 특허 (3)
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Takano Michiaki,JPX, Method and apparatus for controlling transmission power in a cellular mobile communication system.
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Tiedemann ; Jr. Edward G. ; Odenwalder Joseph P. ; Wheatley ; III Charles E. ; Padovani Roberto, Method and apparatus for performing fast power control in a mobile communication system.
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Kojiro Hamabe JP; Shousei Yoshida JP, Method of controlling transmission power in a cellular type mobile communication system.
이 특허를 인용한 특허 (7)
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Malladi, Durga Prasad; Montojo, Juan; Damnjanovic, Aleksandar; Ho, Sai Yiu Duncan, Apparatus and method for uplink power control of wireless communications.
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Li,Shifang; Bao,Junwei; Vuong,Vi, In-die optical metrology.
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Lundby, Stein A., Method and apparatus for power control in a wireless communication system.
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Lundby, Stein Arne, Method and apparatus for power control in a wireless communication system.
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Rudrapatna, Ashok R., Power control based on estimates of cumulative received energy.
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Miller, II, Robert R; Razoumov, Leonid, Space time coding where space diversity derives from use of multiple base stations.
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Ahn,Joon Kui; Kim,Bong Hoe; Hwang,Seung Hoon, Uplink transmission power control method.
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