CN1231004C

5G,4G

Title

Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels

Application Number:

CN20018014224

Publication Date:

07-12-2005

Current Assignee:

Family ID:

Application Date:

06-07-2001

Declaring Company:

Publication Country:

US

Priority Date:

19-07-2000

Title

Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels

Application Number:

CN20018014224

Family ID:

Publication Country:

US

Publication Date:

07-12-2005

Application Date:

06-07-2001

Priority Date:

19-07-2000

Current Assignee:

Declaring Company:

Abstract  Abstract

A technique for allowing a first and second group of users to share access to a communication channel such as a radio channel. A first group of users is typically a legacy group of users such as those using digital CDMA cellular telephone equipment. The second group of users are a group of data users that code their transmissions in different formats optimized for data functionalities. The first group of users share one modulation structure such as on a reverse link using unique phase offsets of a common pseudorandom noise (PN) code. The second group of users share another modulation structure but in a manner that is consistent and compatible with the users of the first group. Specifically the users of the second group may all use the same PN code and code phase offset. However they are uniquely identified such as for example assigning each of them a unique orthogonal code.

A technique for allowing a first and second group of users to share access to a communication channel such as a radio channel. A first group of users is typically a legacy group of users such as those using digital CDMA cellular telephone equipment. The second group of users are a group of data users that code their transmissions in different formats optimized for data functionalities. The first group of users share one modulation structure such as on a reverse link using unique phase offsets of a common pseudorandom noise (PN) code. The second group of users share another modulation structure but in a manner that is consistent and compatible with the users of the first group. Specifically the users of the second group may all use the same PN code and code phase offset. However they are uniquely identified such as for example assigning each of them a unique orthogonal code.

A group of the first user and the second user access technology of a communication channel such as the channel is a radio channel. the first group of users is generally a conventional user group are those the user using CDMA cellular telephone equipment. the second group of users is a group of digital user such user function optimization by different data format code of their transmission. the first group of users share one modulation structure such as on a reverse link a unique phase offset using normal pseudo-random noise (PN) code. second group of users share another modulation structure but such a way is continuous and is compatible with the first group of users. Specifically the second group of users may all use the same PN code and code phase offset. However they are uniquely distinguish for example For example each of them is assigned a unique orthogonal code.

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.