CA2046254A1 - Extended range cordless telephone system - Google Patents
Extended range cordless telephone systemInfo
- Publication number
- CA2046254A1 CA2046254A1 CA2046254A CA2046254A CA2046254A1 CA 2046254 A1 CA2046254 A1 CA 2046254A1 CA 2046254 A CA2046254 A CA 2046254A CA 2046254 A CA2046254 A CA 2046254A CA 2046254 A1 CA2046254 A1 CA 2046254A1
- Authority
- CA
- Canada
- Prior art keywords
- unit
- handset
- base
- units
- base unit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/733—Cordless telephones with a plurality of base stations connected to a plurality of lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
- H04M1/72505—Radio link set-up procedures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/16—WPBX [Wireless Private Branch Exchange]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
An extended operating range is provided for a portable or handset unit operating within a cordless telephone system. The system employs multiple base units and multiple handset units, with only one of the multiple base units being activated at a time for communicating with a given handset unit. Each of the multiple handset units has an assigned or dedicated base unit with which only it may communicate. Other shared base units with which all the multiple handset units may communicate axe also located in the system which supports multiple simultaneous users. An associated radio link control unit controls the activation and deactivation of the base units which are dispersed through a premises. This control unit also controls the connection of a voice path to the base unit actively communicating with a handset unit. As a user of a handset unit with a call in progress roams around the premises, this base unit monitors the quality of the signal received from the handset unit. If this signal quality deteriorates to below an acceptable level, the base unit notifies the radio link control unit which, in turn, initiates a polling procedure to identify and hand-off the communications to another base unit that is then receiving the signal from the handset unit with an acceptable signal quality. With no calls in progress, both base unit and handset unit transmitters are off thereby avoiding interference to other nearby cordless telephones. All receivers are active, however, in order to respond to incoming calls and service requests. Channel cycling and base unit polling procedures are advantageously employed to insure that incoming or outgoing calls are completed quickly, even though the location of a roaming handset unit may be unknown.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56112390A | 1990-08-01 | 1990-08-01 | |
US561,123 | 1990-08-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2046254A1 true CA2046254A1 (en) | 1992-02-02 |
CA2046254C CA2046254C (en) | 2000-03-07 |
Family
ID=24240723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002046254A Expired - Fee Related CA2046254C (en) | 1990-08-01 | 1991-07-04 | Extended range cordless telephone system |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR100207973B1 (en) |
CA (1) | CA2046254C (en) |
HK (1) | HK131995A (en) |
-
1991
- 1991-07-04 CA CA002046254A patent/CA2046254C/en not_active Expired - Fee Related
- 1991-07-24 KR KR1019910012654A patent/KR100207973B1/en not_active IP Right Cessation
-
1995
- 1995-08-24 HK HK131995A patent/HK131995A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR920005519A (en) | 1992-03-28 |
CA2046254C (en) | 2000-03-07 |
HK131995A (en) | 1995-09-01 |
KR100207973B1 (en) | 1999-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |