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公开(公告)号:FI965194A
公开(公告)日:1997-02-21
申请号:FI965194
申请日:1996-12-23
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , HAMILL-KEAYS ANNELI , LAURENDEAU FRANCINE , HAYES JOHN
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公开(公告)号:NO965557A
公开(公告)日:1997-02-12
申请号:NO965557
申请日:1996-12-23
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , HAMILL-KEAYS ANNELI , LAURENDEAU FRANCINE , HAYES JOHN
CPC classification number: H04W48/20
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公开(公告)号:CA2208103A1
公开(公告)日:1996-06-27
申请号:CA2208103
申请日:1995-12-14
Applicant: ERICSSON TELEFON AB L M
Inventor: BODIN ROLAND , KALLIN HARALD
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公开(公告)号:CA2207734A1
公开(公告)日:1996-06-20
申请号:CA2207734
申请日:1995-12-11
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , FALLGREN ANNA
Abstract: Several mobile assisted handoff methods for use in the cellular communication system comprising a plurality of cells are disclosed. First, the quality level of a cell a mobile station is presently using is measured to determine whether the quality level is above or below a threshold. If the quality level is below the threshold, a primary list of cells is assigned to the mobile station, whereas if the quality level is above the threshold, a secondary list of cells is assigned to the mobile station. The quality level of each of the assigned cells is then measured by the mobile station and reported to the communication system.
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公开(公告)号:SE9402289L
公开(公告)日:1995-12-28
申请号:SE9402289
申请日:1994-06-27
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , LAURENDEAU FRANCINE , HAMILL-KEAYS ANNELI , HAYES JOHN
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公开(公告)号:AU6387494A
公开(公告)日:1995-09-04
申请号:AU6387494
申请日:1994-02-16
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , BODIN ROLAND
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公开(公告)号:MY106766A
公开(公告)日:1995-07-31
申请号:MYPI19911485
申请日:1991-08-15
Applicant: ERICSSON TELEFON AB L M
Inventor: BODIN STIG ROLAND , KALLIN HARALD
Abstract: A METHOD FOR USE IN A CELLULAR RADIO TELEPHONE SYSTEM FOR CONTROLLING, IN AT LEAST ONE MOBILE STATION, RESCANNING OPERATIONS OF PAGING CHANNELS IN THE SYSTEM, WHEREIN THE MOBILE STATION IS OPERATIONALLY CONNECTED TO AT LEAST ONE BASE STATION. THE METHOD INVOLVED BROADCASTING A RESCAN MASSAGE FROM THE BASE STATION TO THE MOBILE STATION AT PREDETERMINED INTERVALS DURING OPERATION OF THE BASE STATION. PAGES TO BE SENT TO THE MOBILE STATIONS ARE STORE IMMEDIATELY FOLLOWING BROADCAST OF THE RESCAN MESSAGE UNTIL SUCH TIME AS ALL MOBILE STATIONS HAVE HAD AN ADEQUATE OPPORTUNITY TO CARRY OUT THE RESCANNING OPERATION. (FIG. 5)
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公开(公告)号:FI952062A0
公开(公告)日:1995-04-28
申请号:FI952062
申请日:1995-04-28
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , BODIN ROLAND , LINDROTH MAGNUS , GHISLER WALTER
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公开(公告)号:MX173440B
公开(公告)日:1994-03-03
申请号:MX2554591
申请日:1991-04-26
Applicant: ERICSSON TELEFON AB L M
Inventor: BUHL NANCY , HAYES JOHN , KALLIN HARALD
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公开(公告)号:CA2103904A1
公开(公告)日:1993-06-13
申请号:CA2103904
申请日:1992-12-08
Applicant: ERICSSON TELEFON AB L M
Inventor: KALLIN HARALD , FALLGREN ANNA
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.
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