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Transmission rate control method, mobile station, and wireless line control station

A technology of transmission speed and control method, which is applied in the direction of radio/inductive link selection arrangement, wireless communication, adjustment of transmission rate, etc., and can solve the problem of slow user data transmission speed, etc.

Active Publication Date: 2008-01-09
NTT DOCOMO INC
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Problems solved by technology

[0036] However, when increasing the transmission rate of user data in dB steps, there is a problem that if the slope of the straight line is increased, when the transmission rate of user data becomes faster, it is necessary to add 1 transmission time interval. Large resources are allocated together. If the slope of the straight line is reduced, the transmission speed of user data increases slowly when the transmission speed of user data is low.
[0037] Furthermore, when increasing the transmission speed of user data in linear steps, there is a problem that if the slope of the straight line is increased, the transmission speed of user data rises too early when the user data is low. The slope of the decrease, it takes a lot of time before the transfer rate of user data becomes higher

Method used

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  • Transmission rate control method, mobile station, and wireless line control station
  • Transmission rate control method, mobile station, and wireless line control station
  • Transmission rate control method, mobile station, and wireless line control station

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Embodiment Construction

[0067] (Configuration of the mobile communication system according to the first embodiment of the present invention)

[0068] The configuration of the mobile communication system according to the first embodiment of the present invention will be described with reference to FIGS. 4 to 11 . Among them, as shown in FIG. 1 , the mobile communication system according to this embodiment includes a plurality of radio base stations NodeB#1-#5 and a radio network controller RNC.

[0069] The mobile communication system according to this embodiment is configured to control the transmission rate of user data transmitted by a mobile station via an uplink.

[0070] In addition, in the mobile communication system according to this embodiment, "HSDPA" is used for the downlink, and "EUL (Enhanced Uplink)" is used for the uplink. In addition, in both "HSDPA" and "EUL", HARQ-based retransmission control (N process stop and wait) is performed.

[0071] Therefore, in the uplink, the Enhanced De...

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Abstract

A transmission rate control method for controlling the transmission rate at which the user data is transmitted by a mobile station via an uplink. A serving cell, which performs a scheduling control in the uplink of the mobile station, transmits an absolute rate assignment channel for informing the mobile station of the common maximum allowable transmission rate designated in the serving cell. If the mobile station is adapted to decide, based on the absolute rate assignment channel, the user data transmission rate, then cells other than the serving cell, that is, non-serving cells transmit no relative rate assignment channel for adjusting the maximum allowable transmission rate.

Description

technical field [0001] The present invention relates to a transmission rate control method for controlling the transmission rate of user data transmitted by a mobile station through an uplink, a mobile station, and a radio line controller. Background technique [0002] In a conventional mobile communication system, the radio network controller RNC is configured to consider the radio resource of the radio base station NodeB, the amount of interference in the uplink, the mobile station The transmission power of the UE, the transmission processing performance of the mobile station UE, or the transmission speed required by the upper layer application determine the transmission speed of the dedicated channel. According to the message of the third layer (Radio Resource Control Layer), the mobile station UE and the wireless base station NodeB Each of them sends a notification of the determined transmission rate of the dedicated channel. [0003] Here, the radio network controller ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L29/08H04Q7/38H04W28/00H04W28/22H04W72/12
CPCH04W28/22H04L47/10H04L1/0025H04L1/1812H04L1/0002H04W72/1289H04W72/23
Inventor 臼田昌史安尼尔·尤密斯中村武宏
Owner NTT DOCOMO INC
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