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Reverse data transmission method and appts. in mobile communication system

A mobile communication system, reverse technology, applied in wireless communication, transmission system, digital transmission system and other directions, can solve the problem of monotonous increase of reverse data rate

Inactive Publication Date: 2004-10-06
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the reverse data rate increases monotonically

Method used

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  • Reverse data transmission method and appts. in mobile communication system
  • Reverse data transmission method and appts. in mobile communication system
  • Reverse data transmission method and appts. in mobile communication system

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Embodiment Construction

[0050] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would otherwise obscure the character of the invention in unnecessary detail.

[0051] A description is given below of an AT operation for controlling a reverse data rate in a new HDR system, a structure of a new RRL message supporting reverse data rate control, and a description of an AN operation supporting reverse data rate control according to an embodiment of the present invention.

[0052] image 3 is a flowchart showing a reverse data rate control method performed on an AT in a high data rate system according to an embodiment of the present invention. In order to realize this reverse data rate control method, the existing RRL message should be modified as shown in Table 3.

[0053] field

length (bit)

Message ID

8

T...

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PUM

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Abstract

A reverse data rate controlling method in a mobile communication system for transmission of packet data is provided. In an embodiment of the present invention, an RRL (Reverse Rate Limit) message includes an ignore RAB (Reverse Activity Bit) field to ensure a predetermined data rate for a particular access terminal (AT). In another embodiment of the present invention, an access probability is set for each data rate in the RRL message. Upon receipt of an RAB, an AT compares a random number with the access probability for its data rate and increases or decreases the data rate according to the comparison result.

Description

technical field [0001] The present invention generally relates to a data sending method in a mobile communication system, in particular to a reverse data sending method in a mobile communication system. Background technique [0002] The high data rate mobile communication system is a CDMA (Code Division Multiple Access) system dedicated to transmitting packet data. For efficient packet transmission on both the forward and reverse links, scheduling must be done appropriately. [0003] On the forward link, the AN (access network) sends data to a specific access terminal (AT) that presents the best channel condition after considering the air condition and other channel conditions, so that the data transmission throughput of the AT is maximized. On the other hand, on the reverse link, several ATs access the AN simultaneously. Therefore, the AN controls the data flow from the AT in order to prevent traffic congestion and keep the overhead within its capacity. [0004] In exist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04B7/26H04L1/00H04L1/12H04L29/06H04W28/00H04W28/22H04W72/12
CPCH04L1/0091H04L1/0002H04L1/12H04L1/0025H04L1/0028Y02B60/31H04L1/0039Y02D30/50H04B7/26H04W28/22
Inventor 具昌会
Owner SAMSUNG ELECTRONICS CO LTD