[특허]Location registration system in mobile communication

Location registration system in mobile communication 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-007/04
출원번호	US-0117879 (1993-09-07)
우선권정보	JP-0244575 (1990-09-14)
발명자 / 주소	Onoe Seizo (Kanagawa JPX) Umeda Narumi (Kanagawa JPX) Yamaguti Hidemi (Kanagawa JPX) Yasuda Syuji (Kanagawa JPX)
출원인 / 주소	Nippon Telegraph and Telephone Corp. (Tokyo JPX 03) NTT Mobile Communications Network Inc. (Tokyo JPX 03)
인용정보	피인용 횟수 : 34 인용 특허 : 0

초록 ▼

In a mobile communication system in which the service area is covered with a plurality of location registration areas each having a plurality of cells each relating to a specific base station, each location registration area has a plurality of groups so that the cells belonging to any group overlaps partly with the cells of other groups, but do not completely coincide with cells of other groups, and each mobile station belongs to one of said groups. When a mobile station moves beyond the border of location registration areas, the location updating for the mobile station is carried out at the cell in which the mobile station stays. In that case, as the mobile stations are classified into a plurality of groups, the traffic in each cell for location updating is dispersed to many cells, and the maximum traffic density for location updating per cell is reduced. So, the number of control channels in the system for location updating may be reduced.

대표청구항 ▼

A location registration system in a mobile communication system comprising: a service area for mobile communication comprising a plurality of location registration areas each having a plurality of cells, the area for each cell being related to a respective base station, a fixed home location register storing a location identifier of each mobile station showing which location registration area each mobile station is currently registered in, a fixed mobile control center coupled with said home location register, a fixed telephone network, and a plurality of base stations each of which transmits radio wave to mobile stations which are currently registered in a related cell, a plurality of mobile stations coupled with one of the base stations through radio link, and having a location identifier corresponding to the same in said home location register, said location identifier in said home location register and in said mobile station being updated when the mobile station moves beyond the border of location registration areas, to the location identifier of the location registration area in which the mobile station is currently registered, a call from a fixed network to a mobile station being transmitted from the base stations which belong to the location registration area in which the mobile station is currently registered, to the mobile stations, CHARACTERIZED IN THAT the mobile stations are divided into a plurality of groups, each mobile station being associated with only one group, each location registration area has associated with it a plurality of base stations, each said group is associated with a plurality of location registration areas, and the location registration areas of one group partially overlap with the areas of the groups, wherein some base stations belong to a plurality of location registration areas, but each base station is associated with only one location registration area per group, the base stations broadcast location updating information to a plurality of groups of mobile stations, including location identifiers for each respective group, means for updating location identifiers is provided so that when a location identifier in a mobile station does not coincide with any one of the broadcast information location identifiers for the group to which the mobile station belongs, location identifiers are updated in said home location register and the mobile station, and a fixed network stores a paging table which lists a plurality of cells for each group for each location identifier, and paging information for a call to a mobile station is transmitted by the base stations listed in the related group of the location registration area in said table.

이 특허를 인용한 특허 (34)

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Chen, An Mei; Rosen, Eric C., Method and apparatus for efficient paging and registration in a wireless communications network.
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Harris, John M., Method and apparatus for performing routing area updates.
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Sakamoto Takafumi,JPX ; Kamagata Eiji,JPX, Mobile communication system.
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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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Location registration system in mobile communication 원문보기

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Location registration system in mobile communication 원문보기

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