Method for compact representation of multi-code signaling in communication systems

Abstract

A method for compact representation of multi-code signaling that includes determining a number of multi-codes and a code offset. A codeword is formulated that includes a code group indicator and an offset indicator. The codeword represents a compact representation of multi-code signaling and is formulated and may be decoded without the need for a look-up table.

Description

[0001] The present invention claims the benefit of Provisional Patent application Ser. No. 60 / 331,391 filed Nov. 15, 2001, the contents contained therein being incorporated by reference herein in its entirety.BACKGROUND

[0002] 1. Field of the Invention

[0003] This invention relates to multi-code signaling, and more specifically to compact representation of multi-code signaling in communication systems.

[0004] 2. Discussion of the Related Art

[0005] For some communication systems, WCDMA (Wideband Code Division Multiple Access) is used as the access technique. In order to improve the data rate for a single user, this user may be allowed to utilize several spreading codes (multi-code operation). One specific area, where this multi-code operation is utilized is in HSDPA (High Speed Downlink Packet Access), where the user's spreading factor is set to the fixed number of 16.

[0006] For HSDPA, a base station needs to signal to the mobile node or user equipment (UE) exactly how many multi-codes have b...

Examples

Embodiment Construction

[0025]The particulars shown herein are by way of example and for purposes of illustrative discussion of the embodiments of the present invention. The description taken with the drawings make it apparent to those skilled in the art how the present invention may be embodied in practice.

[0026]Further, arrangements may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram arrangements is highly dependent upon the platform within which the present invention is to be implemented, i.e., specifics should be well within purview of one skilled in the art. Where specific details (e.g., circuits, flowcharts) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without these specific details. Finally, it should be apparent that any combination of hard-wired circuitry and softwar...

[0001] The present invention claims the benefit of Provisional Patent application Ser. No. 60 / 331,391 filed Nov. 15, 2001, the contents contained therein being incorporated by reference herein in its entirety.BACKGROUND

[0002] 1. Field of the Invention

[0003] This invention relates to multi-code signaling, and more specifically to compact representation of multi-code signaling in communication systems.

[0004] 2. Discussion of the Related Art

[0005] For some communication systems, WCDMA (Wideband Code Division Multiple Access) is used as the access technique. In order to improve the data rate for a single user, this user may be allowed to utilize several spreading codes (multi-code operation). One specific area, where this multi-code operation is utilized is in HSDPA (High Speed Downlink Packet Access), where the user's spreading factor is set to the fixed number of 16.

[0006] For HSDPA, a base station needs to signal to the mobile node or user equipment (UE) exactly how many multi-codes have b...

Examples

Embodiment Construction

[0025]The particulars shown herein are by way of example and for purposes of illustrative discussion of the embodiments of the present invention. The description taken with the drawings make it apparent to those skilled in the art how the present invention may be embodied in practice.

[0026]Further, arrangements may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram arrangements is highly dependent upon the platform within which the present invention is to be implemented, i.e., specifics should be well within purview of one skilled in the art. Where specific details (e.g., circuits, flowcharts) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without these specific details. Finally, it should be apparent that any combination of hard-wired circuitry and softwar...

Images