MY108742A - Listening control channel in a cellular mobile radiotelephone system - Google Patents

Listening control channel in a cellular mobile radiotelephone system

Info

Publication number
MY108742A
MY108742A MYPI93001001A MYPI19931001A MY108742A MY 108742 A MY108742 A MY 108742A MY PI93001001 A MYPI93001001 A MY PI93001001A MY PI19931001 A MYPI19931001 A MY PI19931001A MY 108742 A MY108742 A MY 108742A
Authority
MY
Malaysia
Prior art keywords
cell
control channel
umbrella cell
umbrella
call
Prior art date
Application number
MYPI93001001A
Inventor
Anna Fallgren
Harold Kallin
Original Assignee
Telefonaktiebolaget L M Ericson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget L M Ericson filed Critical Telefonaktiebolaget L M Ericson
Priority to MYPI93001001A priority Critical patent/MY108742A/en
Publication of MY108742A publication Critical patent/MY108742A/en

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  • Mobile Radio Communication Systems (AREA)

Abstract

A CELLULAR MOBILE RADIOTELEPHONE SYSTEM LISTENS FOR CALL ACCESSES ON A CONTROL CHANNEL OF AN UMBRELLA CELL AND ON A CONTROL CHANNEL OF A MICROCELL LOCATED WITHIN SAID UMBRELLA CELL AND RESPONDS TO THE CALL ACCESS ONLY ON THE CONTROL CHANNEL OF THE UMBRELLA CELL. MORE PARTICULARLY, THE MICROCELLS WITHIN A PARTICULAR UMBRELLA CELL ARE PROVIDED WITH LISTEN-ONLY CONTROL CHANNEL AT THE SAME FREQUENCY AS THE UPLINK CONTROL CHANNEL OF THE UMBRELLA CELL. AN UMBRELLA CELL AND ONE OR SEVERAL OF ITS MICROCELLS MAY THEREFORE EACH RECEIVE THE SAME CALL ACCESSES. DURING CALL ACCESS, THE UMBRELLA CELL AND EACH OF THE MICROCELLS DETERMINES THE STRENGTH OF THE RECEIVED SIGNAL AND FORWARDS THIS INFORMATION TO THE SYSTEM. THE SYSTEM SELECTS THE MOST APPROPRIATE CELL OUT OF THE UMBRELLA CELL AND THE MICROCELLS TO HANDLE THE CALL AND CAUSES THE UMBRELLA CELL TO RESPOND TO THE CALL ACCESS ON ITS DOWNLINK CONTROL CHANNEL. AMONG THE UMBRELLA CELL AND ITS MICROCELLS, THERE ARE THEREFORE A PLURALITY OF UPLINK CONTROL CHANNELS, ONE FOR EACH DEFINED CELL, AND A SINGLE DOWNLINK CONTROL CHANNEL, NAMELY THAT OF THE UMBRELLA CELL. CELL PLANNING REMAINS UNCHANGED AS DOES A DIRECTED RETRY MECHANISM. BECAUSE THERE IS ONLY A SINGLE DOWNLINK CONTROL CHANNEL WITHIN THE COVERAGE AREA OF AN UMBRELLA CELL, EXCESSIVE RESCANNING IS AVOIDED. FURTHERMORE, A CALL IS ESTABLISHED AT THE OUTSET IN THE MOST APPROPRIATE CELL, USING RESOURCES MORE EFFICIENTLY AND AVOIDING CONGESTION IN THE UMBRELLA CELL. (FIG. 5)
MYPI93001001A 1993-05-27 1993-05-27 Listening control channel in a cellular mobile radiotelephone system MY108742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI93001001A MY108742A (en) 1993-05-27 1993-05-27 Listening control channel in a cellular mobile radiotelephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI93001001A MY108742A (en) 1993-05-27 1993-05-27 Listening control channel in a cellular mobile radiotelephone system

Publications (1)

Publication Number Publication Date
MY108742A true MY108742A (en) 1996-11-30

Family

ID=80001947

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI93001001A MY108742A (en) 1993-05-27 1993-05-27 Listening control channel in a cellular mobile radiotelephone system

Country Status (1)

Country Link
MY (1) MY108742A (en)

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