[특허]Base station selection scheme for CDMA cellular system using perch channel and received SIR

[미국특허] Base station selection scheme for CDMA cellular system using perch channel and received SIR 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-007/26
출원번호	US-0766470 (1996-12-12)
우선권정보	JP-0007792 (1996-01-19)
발명자 / 주소	Nakano Etsuhiro,JPX Higashi Akihiro,JPX Kikuchi Fumio,JPX
출원인 / 주소	NTT Mobile Communications Network Inc., JPX
대리인 / 주소	Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보	피인용 횟수 : 77 인용 특허 : 3

초록 ▼

A base station selection scheme for a CDMA cellular system capable of reducing the transmission power of the mobile station and increasing the subscriber capacity, by accounting for the uplink interference power at each base station. An uplink interference level is measured at each base station, while a perch channel is transmitted from each base station to the mobile station, and a perch channel reception level of the perch channel transmitted from each base station is measured at the mobile station. Then, a connection target base station to be connected with the mobile station is selected according to a received SIR (Signal to Interference Ratio) of each base station determined from the perch channel reception level measured at the mobile station and the uplink interference level measured at each base station.

대표청구항 ▼

[ What is claimed is:] [1.] A method of base station selection in a CDMA cellular system formed by a plurality of base stations connected with a communication network and at least one mobile station, comprising the steps of:measuring an uplink interference level at each base station;transmitting a perch channel from each base station to the mobile station;measuring a perch channel reception level of the perch channel transmitted from each base station at the mobile station; andselecting a connection target base station to be connected with the mobile station according to a received SIR (Signal to Interference Ratio) of each base station determined from the perch channel reception level measured at the mobile station while accounting for the uplink interference level measured at each base station into the perch channel reception level measured at the mobile station.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Toshiyuki Maeda (Kanagawa JPX) Shuji Yasuda (Kanagawa JPX) Seizo Onoe (Kanagawa JPX), Channel assigning method in a mobile communication system.
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Bruckert Eugene J. (Arlington Heights IL), Method for assigning channel reuse levels in a multi-level cellular system.
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Stjernholm Paul (Stockholm SEX), Method for estimating C/I density and interference probability in the uplink.
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이 특허를 인용한 특허 (77) 인용/피인용 타임라인 분석

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Attar, Rashid Ahmed Akbar; Damnjanovic, Aleksandar; Malladi, Durga Prasad; Grilli, Francesco, Handover mechanism that exploits uplink channel quality of a target cell.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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[미국특허] Base station selection scheme for CDMA cellular system using perch channel and received SIR 원문보기

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[미국특허] Base station selection scheme for CDMA cellular system using perch channel and received SIR 원문보기

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