WO1996038998B1 - Mobile station locating and handover arrangement for a digital cellular telephone - Google Patents
Mobile station locating and handover arrangement for a digital cellular telephoneInfo
- Publication number
- WO1996038998B1 WO1996038998B1 PCT/GB1996/001281 GB9601281W WO9638998B1 WO 1996038998 B1 WO1996038998 B1 WO 1996038998B1 GB 9601281 W GB9601281 W GB 9601281W WO 9638998 B1 WO9638998 B1 WO 9638998B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- mobile telephone
- central controller
- telephone
- signals
- Prior art date
Links
- 230000001413 cellular Effects 0.000 title claims abstract 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
Abstract
A digital cellular telephone network is provided with mobile telephone handover arrangements in which the mobile telephone supplies signals relating to the strengths of downlink signals via a first base station to a central controller of the network. The signals are the signals from the first base station serving a special area within which the mobile telephone is located and with which the telephone is communicating, as well as downlink signals from two or more other selected remotely located base stations in the network. Based on this information a central controller determines whether or not the mobile telephone is located in the special area.
Claims
1. A mobile telephone locating arrangement for a digital cellular telephone network having a central controller and a number of mobile telephones in which a first base station is arranged to serve over a special area of the network and two or more other remotely located base stations in the system are selected to identify that a mobile telephone iε in that special area, in which the mobile telephone is arranged to measure the downlink strength of signals from the two or more selected base stations and communicate the signal strengths to the first base station for onward transmission to the central controller, in which the central controller utilises the ratios between the signal strengths to identify the special area.
2. A handover arrangement incorporating the locating arrangement of claim 1, in which each telephone is arranged to continually measure and transmit downlink signal strength of the first base station and downlink signal strength measurements of a number of other selected base stations, and in which these signals are passed to the central controller which determines a C/I ratio and controls a handover of the mobile telephone from the first base station to another base station if this ratio falls below a predetermined value, where C equals the downlink signal strength of the first base station and I is a summation of the downlink signal strengths of other selected base stations.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU58291/96A AU710404B2 (en) | 1995-05-30 | 1996-05-30 | Mobile station locating and handover arrangement for a digital cellular telephone |
| EP96919927A EP0829180A1 (en) | 1995-05-30 | 1996-05-30 | Mobile station locating and handover arrangement for a digital cellular telephone |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9510867.6A GB9510867D0 (en) | 1995-05-30 | 1995-05-30 | Digital cellular telephone networks |
| GB9510867.6 | 1995-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1996038998A1 WO1996038998A1 (en) | 1996-12-05 |
| WO1996038998B1 true WO1996038998B1 (en) | 1997-01-30 |
Family
ID=10775220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB1996/001281 WO1996038998A1 (en) | 1995-05-30 | 1996-05-30 | Mobile station locating and handover arrangement for a digital cellular telephone |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0829180A1 (en) |
| CN (1) | CN1191661A (en) |
| AU (1) | AU710404B2 (en) |
| GB (1) | GB9510867D0 (en) |
| WO (1) | WO1996038998A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0227636D0 (en) * | 2002-11-27 | 2003-01-08 | Koninkl Philips Electronics Nv | Positioning method system and unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE466081B (en) * | 1990-04-26 | 1991-12-09 | Ericsson Telefon Ab L M | PROCEDURES FOR HANDOFFS IN A MOBILE RADIO SYSTEM |
-
1995
- 1995-05-30 GB GBGB9510867.6A patent/GB9510867D0/en active Pending
-
1996
- 1996-05-30 EP EP96919927A patent/EP0829180A1/en not_active Withdrawn
- 1996-05-30 WO PCT/GB1996/001281 patent/WO1996038998A1/en not_active Application Discontinuation
- 1996-05-30 AU AU58291/96A patent/AU710404B2/en not_active Ceased
- 1996-05-30 CN CN 96195682 patent/CN1191661A/en active Pending
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