Two threshold uplink rate control to enable uplink scheduling

a technology of uplink rate and scheduling, applied in the field of wireless communications, can solve the problems of affecting the performance of rnc, tfcs can be slow to adapt to network changes, and measurement and ue rrc reports taken to srnc,

Inactive Publication Date: 2005-01-06
TOSKALA ANTTI +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention provides a wireless communications network and method for controlling data rates between a base station and a terminal. The terminal sends a rate request to the base station, requesting a change in data rate. The base station sends a rate grant indicating whether or not the terminal can change the data rate. This allows for reliable data rate control and ensures efficient use of network resources."

Problems solved by technology

This has the disadvantage that various measurements and UE RRC reports taken to SRNC, processed and sent to UE 11, all over a frame structure measured in milliseconds.
This method of using the RRC ability to limit the TFCS can be slow to adapt to changes in the network, such as in the amount of data to be transmitted between network elements.
Also, since the method is dependent on RRC controlled by the RNC, it susceptible to processing bottlenecks and other factors affecting the performance of the RNC.

Method used

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  • Two threshold uplink rate control to enable uplink scheduling
  • Two threshold uplink rate control to enable uplink scheduling
  • Two threshold uplink rate control to enable uplink scheduling

Examples

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Embodiment Construction

[0019] The particulars shown herein are by way of example and for purposes of illustrative discussion of the preferred embodiments of the present invention. The description taken with the drawings make it apparent to those skilled in the art how other various embodiments of the present invention may be implemented in practice.

[0020] Further, elements are 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 network environment within which an embodiment of the present invention is to be implemented, i.e., specifics should be well within the purview of one skilled in the art. Although the preferred embodiments of the invention are described with reference to the example system block diagram of 3GPP Release '99 in FIG. 1, embodiments of the invention may be practiced in other wireless communication networks, including but not limi...

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Abstract

A wireless communications network has a plurality of terminals and at least one base station which transmits data to each one of said plurality of terminals on a wireless downlink and receives data from each one of said plurality of terminals on a wireless uplink. One of the terminals sends a rate request to the base station. The rate request requests that the data rate on the wireless uplink for the terminal be changed. In response to the rate request, the base station sends a rate grant to the terminal. The rate grant indicates whether or not the terminal may change the data rate on the wireless uplink.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates generally to the field of wireless communications. More particularly, the present invention relates to uplink enhancements in the air interface between a terminal and a base station in a wireless communications network. [0003] 2. Description of the Related Art [0004] The air interface between a terminal and a base station in a wireless communications network relates directly to the achievable level of performance of the network. It is essential to have a low signal-to-interference ratio (SIR) requirement for sufficient link performance with various coding and diversity solutions in the physical layer, since the physical layer defines the fundamental capacity limits of the air interface. [0005] In 3rd generation wireless communications systems, such as that specified by Release '99 or subsequent releases of the 3rd Generation Partnership Project joint standardization project (www.3gpp.or...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04L12/56H04W28/22H04J3/16H04W72/04H04W72/12
CPCH04W72/1278H04W28/22H04W72/20
InventorTOSKALA, ANTTIMALKAMAKI, ESAHAO, GUANRINNE, MIKKO J.DERRYBERRY, R. THOMAS
OwnerTOSKALA ANTTI