Channel compression and dynamic repartitioning for dual mode cellular radio
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04M-011/00
H04Q-007/00
H04J-003/16
출원번호
US-0870976
(1992-04-20)
발명자
/ 주소
Kay Stanley E. (Rockville MD) Farmer George D. (Frederick MD) Bhatia Hans (Germantown MD) Mehta Ashok D. (North Potomac MD) Kain Christopher J. (Damascus MD) Sampson Nicholas P. (Clarksburg MD)
출원인 / 주소
Hughes Aircraft Company (Los Angeles CA 02)
인용정보
피인용 횟수 :
32인용 특허 :
0
초록▼
A cellular system uses dynamic repartitioning and channel packing to improve capacity without impacting quality. Dynamic repartitioning is employed to convert a carrier which operates, at one time, as an analog carrier to operate, at a later time, as a digital carrier in response to changes in offer
A cellular system uses dynamic repartitioning and channel packing to improve capacity without impacting quality. Dynamic repartitioning is employed to convert a carrier which operates, at one time, as an analog carrier to operate, at a later time, as a digital carrier in response to changes in offered traffic. Alternatively, a carrier which, at one time, operates as a digital carrier is converted to operate, at a later time, as an analog carrier in response to changes in offered traffic. Channel packing is used to allocate as many digital channels as possible to as few digital carriers as possible. In a preferred embodiment, both repartitioning and channel packing are implemented in response to call origination or call termination.
대표청구항▼
A method of operating a given cell of a cellular telephone system comprising the steps of: a) at a first time, establishing for a set of n radio frequency carriers available within the given cell, a first subset n(a1) of carriers operating as analog carriers and a second subset n(d1) of carriers ope
A method of operating a given cell of a cellular telephone system comprising the steps of: a) at a first time, establishing for a set of n radio frequency carriers available within the given cell, a first subset n(a1) of carriers operating as analog carriers and a second subset n(d1) of carriers operating as digital carriers, where each digital carrier supports from 1 to x channels on a time multiplexed basis, where n(a#) represents a number of analog carriers at a time identified by the index #, n(d#) represents a number of digital carriers at a time identified by the index #, n represents a number of carriers at the cell, n, n(a#) and n(d#) is less than or equal to n, and x is an integer greater than or equal to two, b) at a second time, later than the first time, b1) examining each of the digital carriers to locate those digital carriers supporting less than x channels, b2) selecting channels from among a group of the digital carriers located in step b1) and rearranging the selected channels to occupy unused channels of digital carriers located in step b1) which are not within the digital carrier group, and c) at a third time, later than the first time, selecting at least one digital carrier supporting no channels and removing said selected digital carrier from the second subset of carriers operating as digital carriers and inserting the removed carrier into the first subset of carriers operating as analog carriers so that the first subset of carriers at the third time n(a3) is greater than the first subset of carriers n(a1) at the first time.
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