CN1728603A

5G,4G,3G,2G

Title

Method of controlling initial power ramp-up in CDMA systems by using short codes

Application Number:

CN20051088182

Publication Date:

01-02-2006

Current Assignee:

INTERDIGITAL INC

Family ID:

24689247

Application Date:

23-06-1997

Declaring Company:

INTERDIGITAL INC

Publication Country:

US

Priority Date:

27-06-1996

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Title

Method of controlling initial power ramp-up in CDMA systems by using short codes

Application Number:

CN20051088182

Family ID:

24689247

Publication Country:

US

Publication Date:

01-02-2006

Application Date:

23-06-1997

Priority Date:

27-06-1996

Current Assignee:

INTERDIGITAL INC

Declaring Company:

INTERDIGITAL INC

View on Espacenet goto-link

Abstract  Abstract

A system and a method to channel establishment period of CDMA communication system during initial power ramp-up using a short code transmitted from the subscriber unit to the base station to control the transmission power. The short code is a sequence for detection of base station it has period much shorter period of traditional transmission code. power increase begins at a power level which is the lower base station to detect a desired power level. the user unit repeatedly transmitting the short code quickly increases transmission power until the signal detected by the base station. The use of short codes limits excessive power and interference to other subscriber stations and also permits the base station to quickly used by the spreading code synchronization of the user unit.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.

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