Bandwidth distribution control method and device

Abstract

The invention discloses a bandwidth allocation control method and a device thereof, which are used to reasonably allocate Iub interface bandwidth for a user data queue and to ensure the guaranteed bit rate allocated to the user data queue. The method includes the following steps: according to the average speed R of the air interface of the current subframe of the user data queue, the base ratio F1 of the Iub interface bandwidth allocated for the current subframe of the user data queue and the average speed of the air interface, and a user time delay restraint factor F2, determining the Iub interface bandwidth Bw1 requested in the current subframe of the user data queue; when the Iub interface bandwidth Bw1 satisfies the requirement of the guaranteed bit rate, adjusting the base ratio F1 allocated to the current subframe of the user data queue to be current subframe F1, and adjusting the user time delay restraint factor F2 allocated to the current subframe of the user data queue to be current subframeF2; and allocating Iub interface bandwidth for the user data queue according to R, the current subframeF1 and the current subframeF2.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a bandwidth allocation control technology. Background technique [0002] The 3GPP25.435 (3GPP: 3rd Generation Partnership Project, the third generation communication cooperation organization) agreement stipulates that in the HSDPA (High Speed ​​Downlink Packet Access, high-speed downlink packet access) system, the RNC (Radio Network Controller, radio network controller) Use HS-DSCH (High Speed ​​Downlink Shared Channels, High Speed ​​Downlink Shared Channel) to transmit high-speed downlink data to the base station. [0003] MAC-d (MAC-dedicated, dedicated MAC) is a type of MAC (Medium Access Control, medium access control) entity, located at the RNC side, and used to process dedicated channels. And MAC-hs (MAC-high speed, high-speed MAC) is also a MAC entity, located at the side of the base station, and used to process the HS-DSCH. HS-DSCH uses the following procedure fo...

AI Technical Summary

Problems solved by technology

Because the existing technology treats all data queues equally, without considering the QOS requirements of the data queues, if there is a data queue with high requirements for GBR (Guaranteed Bit Rate, guaranteed bit rate) in the system, it will be due to insufficient Iub interface bandwidth. , There is less data in the data queue, and the phenomenon of scheduling and emptying occurs, and the guaranteed bit rate configured for the data queue cannot be guaranteed

Because prior art regards the buffer zone of data queue as a static buffer zone, divides the input and output of this buffer zone, only considers problem from input end when carrying out Iub interface flow control, often makes the BO of data queue like this (t ) often jitters between the set thresholds, causing CAPACITY ALLOCATION frames to be too frequent and wasting Iub interface bandwidth

[0008] It can be seen that the prior art cannot rationally allocate the Iub interface bandwidth for the data queue, resulting in a waste of Iub interface bandwidth, or the allocated Iub interface bandwidth cannot guarantee the guaranteed bit rate configured for the data queue

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