ES2283063T3

Title

Not Available

Application Number:

ES19980931756T

Publication Date:

16-10-2007

Current Assignee:

Family ID:

Application Date:

30-06-1998

Declaring Company:

Publication Country:

US

Priority Date:

01-07-1997

Title

Not Available

Application Number:

ES19980931756T

Family ID:

Publication Country:

US

Publication Date:

16-10-2007

Application Date:

30-06-1998

Priority Date:

01-07-1997

Current Assignee:

Declaring Company:

Abstract  Abstract

A set of individually adjusted gain channels (A, B, C, Pilot) is formed by using a set of orthogonal subchannel codes (Walsh + -, Walsh ++ -) that have a small number of integrated broadcast circuits of PN per orthogonal waveform period. The data to be transmitted through one of the transmission channels is encoded with a low code rate error correction and repeated in sequence before being modulated with one of the subchannel codes, adjusted in gain and summed with modulated data using other subchannel codes. The resulting summed data (316) is modulated using a long user code and a pseudorandom broadcast code (PN code) and converted for transmission. The use of short orthogonal codes provides interference suppression while still allowing coding with extensive error correction and repetition by time diversity to override the Raleigh fade that is commonly experienced in terrestrial wireless systems. A subchannel code set may comprise four Walsh codes, each orthogonal to the remaining codes in the set. The use of four subchannels is more appropriate since it allows the use of shorter orthogonal codes. However, it is acceptable to use a larger number of channels and, therefore, longer codes. Preferably the pilot data and the control data are combined on a channel. The remaining two channels are used for the transmission of non-specific digital data that include user data or signaling data, or both.

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.