EP 1033049 A1 20000906 - CALIBRATION OF SUBSCRIBER TERMINAL FOR WIRELESS TELECOMMUNICATIONS SYSTEM
Title (en)
CALIBRATION OF SUBSCRIBER TERMINAL FOR WIRELESS TELECOMMUNICATIONS SYSTEM
Title (de)
KALIBRIERUNG EINES TEILNEHMERENDGERÄTES FÜR EIN DRAHTLOSES TELEKOMMUNIKATIONSSYSTEM
Title (fr)
ETALONNAGE D'UN TERMINAL D'ABONNE POUR SYSTEME DE TELECOMMUNICATIONS SANS FIL
Publication
Application
Priority
- GB 9803416 W 19981113
- GB 9724615 A 19971120
Abstract (en)
[origin: GB2331667A] A subscriber terminal for wireless communication with a central terminal of a wireless telecommunication system has a first signal processing unit 110 associated with an antenna 100, and a second signal processing unit 130 remote from the first and associated with an item of telecommunications equipment 150. A connection medium 120 such as a coaxial cable connects first and second processing units. Calibration logic in the second processing unit controls the first processing unit to send test signals back to the second processing unit so that a signal loss introduced by the coaxial cable on the downlink can be determined and compensated. Uplink signal loss is compensated by sending a test signal from the second processing unit. The first signal processing unit may be mounted outdoors, externally to a subscriber's premises, and the second processing unit located indoors. within the subscriber's premises. Thus the less rugged and more expensive circuitry of the second processing unit is protected.
IPC 1-7
IPC 8 full level
H04B 1/38 (2006.01); H04B 17/00 (2006.01); H04W 88/02 (2009.01)
CPC (source: EP)
H04B 1/3877 (2013.01); H04B 17/318 (2015.01); H04B 17/0085 (2013.01); H04W 88/02 (2013.01)
Citation (search report)
See references of WO 9927732A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
GB 2331667 A 19990526; GB 2331667 A9; GB 9724615 D0 19980121; BR 9814219 A 20001003; CA 2311470 A1 19990603; EP 1033049 A1 20000906; ID 24169 A 20000713; MX PA00005026 A 20030801; NO 20002086 D0 20000419; NO 20002086 L 20000720; PL 340557 A1 20010212; TR 200001453 T2 20000921; WO 9927732 A1 19990603; ZA 9810594 B 19990525
DOCDB simple family (application)
GB 9724615 A 19971120; BR 9814219 A 19981113; CA 2311470 A 19981113; EP 98954580 A 19981113; GB 9803416 W 19981113; ID 20000956 A 19981113; MX 9905026 A 19981113; NO 20002086 A 20000419; PL 34055798 A 19981113; TR 200001453 T 19981113; ZA 9810594 A 19981119