[특허]Method for establishing a wireless communications link in a reduced time

[미국특허] Method for establishing a wireless communications link in a reduced time 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-007/20
출원번호	US-0957277 (1997-10-24)
발명자 / 주소	Seekins David S. Heeschen David R. Renko Mitchell E.
출원인 / 주소	Motorola, Inc.
대리인 / 주소	Garrett
인용정보	피인용 횟수 : 22 인용 특허 : 6

초록 ▼

A mobile station (100) maintains a preferred bandmap (106) and a fixed bandmap (104). Upon powering up the mobile station, the mobile station begins scanning frequencies listed in the preferred bandmap. The strength of each detected carrier signal is measured, and the mobile station connect to the serving cell having the strongest carrier signal. The preferred bandmap is maintained by placing the frequency of the most recently connected serving cell at the head of the list, and moving other frequencies down the list as other are added or rotated to the top of the list.

대표청구항 ▼

[ What is claimed is:] [1.] A method to be performed by a mobile station for establishing a wireless communications link between the mobile station and a serving cell, the method comprising the steps of:scanning a list of preferred serving cell control frequencies as listed in a preferred bandmap, the preferred bandmap having been derived from a fixed bandmap, the fixed bandmap having a comprehensive list of serving cell control frequencies, both the fixed bandmap and preferred bandmap disposed in the mobile station;detecting at least one appropriate carrier signal on at least one of the preferred serving cell frequencies while performing the step of scanning;measuring a signal strength of each of the at least one appropriate carrier signals to determine a strongest carrier signal; andconnecting to a serving cell corresponding with the strongest carrier signal.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Karlsson Bror A. (Montreal CAX), Best server selection in layered cellular radio system.
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Tiedemann ; Jr. Edward G. (San Diego CA) Karmi Gadi (San Diego CA) Quick Frank (San Diego CA), Comprehensive mobile communications device registration method.
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Guimont Vincent (Blainville CAX), Method and apparatus for enhancing call set-up and handoff quality.
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Abreu Victor M. ; Pombo Raul A. ; Marko Paul D. ; Brown David L.., Methodical scanning method and apparatus for portable radiotelephones.
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Hooper Jeff Duwayne ; Collins Daniel G., Preferred system selection techniques for mobile terminals.
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Lynch Richard (Yardley PA) Braun Robert T. (Pittstown NJ) Haberman Michael (Morris Plains NJ) Donofrio Edward J. (Washington NJ) Nightingale ; Jr. John G. (Jamesburg NJ), System identification (SID) list for selecting operating frequencies.
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이 특허를 인용한 특허 (22) 인용/피인용 타임라인 분석

Fernandez Corbaton,Ivan Jesus; Antonio,Franklin Peter; Schiff,Leonard Norman; Jalali,Ahmad, Access channel with constrained arrival times.
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Roberts,Gideon, Apparatus and method for making measurements in universal mobile telecommunications system user equipment.
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Roberts,Gideon, Apparatus and method for making measurements in universal mobile telecommunications system user equipment.
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Islam, M. Khaledul; Hossain, Asif, Apparatus and method for performing network scanning using black-list network information.
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Islam, M. Khaledul; Hossain, Asif, Apparatus and method for performing network scanning using black-list network information.
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De Beer, Leon, Apparatus and method for routing communications.
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Kim, Noh-Sun; Oh, Jung-Min, Apparatus and method for scanning network in a mobile communication terminal.
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Ekstedt, Tomas; Karlsson, Magnus; Hokfelt, Johan; Wichert, Jan, Avoidance of service interruptions in visited public land mobile network (VPLMNs).
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Ida, Takehiro; Yunoki, Kazufumi; Iwanaga, Mitsuo, Frequency search method for a mobile station and a mobile station therewith.
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Pon Rayman W. ; Lu Huihung Tim, Method and apparatus for fast signal acquisition of preferred wireless channel.
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Islam, M. Khaledul; Wirtanen, Jeffrey, Method and apparatus for network scanning based on neighbor information.
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Islam, Muhammad Khaledul; Wirtanen, Jeffrey William, Method and apparatus for network scanning based on neighbor information.
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Lewis, Michael J. G., Method and arrangement for reducing the average time needed for a communication unit to connect to a communication network.
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Tod, Anthony William; Datsen, Margarita; He, Qing; Dwyer, Johanna Lisa; Wirtanen, Jeffrey William, Method and device for obtaining candidate information.
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Tod, Anthony; Datsen, Margarita; He, Qing; Dwyer, Johanna; Wirtanen, Jeffrey, Method and device for obtaining candidate information.
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Tod, Anthony; Datsen, Margarita; He, Qing; Dwyer, Johanna; Wirtanen, Jeffrey, Method and device for obtaining candidate information.
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Seekins David S. ; Parikh Saumil ; Barker ; Jr. Charles R., Method for recovering communication service.
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Renko Mitchell E. ; Seekins David S. ; Marcilla Pablo, Method for registering a communication device for communication service.
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Jansen,Kaj, Method for speeding up synchronization by having a search frequency list comprising a limited number of search frequencies.
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Ofuji,Yoshiaki; Tanno,Motohiro; Nakamura,Takehiro, Mobile station apparatus, mobile communication system, and carrier detecting method.
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Parker, Allen, Mobile terminals, methods, and computer program products that can facilitate the selection of a communication service provider in a multiple communications mode environment.
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Leoncavallo, Ruggero, Wake-up method for a multi-channel receiver and multi-channel wake-up receiver.
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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

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[미국특허] Method for establishing a wireless communications link in a reduced time 원문보기