Miscellaneous improvements on the hrpd system

Abstract

Mechanisms for improving the proposed high rate packet data (HRPD) system are provided. Approaches proposed are including PilotGroupID in the sector parameter message to convey the pilot group information, encoding to enable shortened NeighborList messages, improvements on RoutUpdateRequest message for request updates on multiple carriers, inclusion of the channel record of the reference pilot in the RouteUpdate message when the message sent in the connected state, using pilot drop timer of a Candidate Set pilot as a trigger for sending RouteUpdate, encoding the TrafficChannelAssignment message to shorten the message in certain situations, limiting the usage of auxiliary DRC cover in some situations to avoid confusion in determining the serving sector and processing OverheadMessages.Updated Indication and OverheadMessagesNeighborList Initialization in the idle state.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional of U.S. application Ser. No. 11 / 676,255, filed on Feb. 16, 2007, currently pending, which claims the benefit of U.S. Provisional Application Ser. No. 60 / 774,466, filed on Feb. 17, 2006, the contents of which are hereby incorporated by reference herein in their entirety.FIELD OF THE INVENTION[0002]The present invention relates to mechanisms for improving the high rate packet data (HRPD) system.DESCRIPTION OF THE RELATED ART[0003]In the world of cellular telecommunications, those skilled in the art often use the terms 1G, 2G, and 3G. The terms refer to the generation of the cellular technology used. 1G refers to the first generation, 2G to the second generation, and 3G to the third generation.[0004]1G refers to the analog phone system, known as an AMPS (Advanced Mobile Phone Service) phone systems. 2G is commonly used to refer to the digital cellular systems that are prevalent throughout the world, and inclu...

AI Technical Summary

Benefits of technology

[0113]In another aspect of the present invention, a method for providing control information to a terminal in a multi-carrier mobile communication system is provided. The method includes transmitting a control message to the terminal, the message comprising a plurality of at least four consecutive fields, wherein the exclusion of or a specific value of a first of the plurality of at least four consecutive fields allows the exclusion of the following three consecutive of the plurality of at least four consecutive fields such that the length of the message is reduced.

Problems solved by technology

Due to its length, a long PN code cannot be stored in ROM in a terminal and, therefore, is generated chip-by-chip.

Traffic channels use any remaining Walsh codes subject to overall capacity as limited by noise.

Such a random access procedure can result in collisions.

Because different users may transmit at different times in TDM, it is difficult to implement diversity transmission from different BS's 6 that are intended for a single user.

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