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A minimal frequency spreading factor reconfiguration method for special uplink channel

A technology of spreading factor and dedicated channel, applied in the field of minimum spreading factor reconfiguration of uplink dedicated channel, can solve problems such as waste, and achieve the effect of improving resource utilization and system performance

Active Publication Date: 2008-02-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0016] If the UL SF is not adjusted according to the actual transmission capability of the service, it will cause waste of radio resources

Method used

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  • A minimal frequency spreading factor reconfiguration method for special uplink channel
  • A minimal frequency spreading factor reconfiguration method for special uplink channel
  • A minimal frequency spreading factor reconfiguration method for special uplink channel

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Experimental program
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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0046] The MinSF reconfiguration process is shown in Figure 2. If the RB reconfiguration process 201 is triggered, TFCS 202 is first checked, and if the TFCS changes, the uplink MinSF 203 is recalculated, and the MinSF initial configuration process 204 is triggered, and if the TFCS does not change, the process ends. If TFC Control 205 is triggered, update uplink MinSF 203, compare 206 the calculated MinSF with the current MinSF, if MinSF changes, start MinSF dynamic adjustment process 207, otherwise end the process.

[0047] MinSF reconfiguration includes three processes:

[0048] 1) MinSF calculation;

[0049] 2) MinSF initial configuration;

[0050] 3) MinSF dynamic adjustment.

[0051] The basic principles of MinSF dynamic adjustment are:

[0052] 1) The relatively gentle increase converges to the MinSF actually required by the business;

[0053] 2) ...

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Abstract

The present invention relates to a reconfiguration method of the smallest spread frequency factor of a dedicated uplink channel. The present invention includes two steps. Firstly, the smallest spread frequency factor is initially configured, and when the transmission format set is changed, the smallest spread frequency factor is recalculated in order to provide a basis for the resource reservation of NodeB; secondly, the smallest spread frequency factor is dynamically regulated, and according to the transmission format subset, the present smallest spread frequency factor is regulated in orderto regulate the actual traffic transmission ability. Since the smallest spread frequency factor of the dedicated uplink channel is dynamically regulated according to the actual traffic, the resource utilization ratio and performance of a system is increased.

Description

technical field [0001] The invention relates to a method for reconfiguring the minimum spreading factor (MinSF) of an uplink dedicated channel (DCH) in a Wideband Code Division Multiple Access (WCDMA) system (hereinafter referred to as WCDMA), so as to improve system resource utilization and system resource utilization. performance. Background technique [0002] The rate adjustment of the uplink DCH channel [buffer occupancy (Buffer Occupy, BO) trigger or user equipment (UE) internal measurement trigger] can be performed through the transmission format set control (TFC Control) process or the radio bearer (RB) reconfiguration process. The interval is MinSF~256. In the 25.331 protocol, there is no definition for the minimum spreading factor capability of frequency division duplexing in the uplink, but in 10.3.6.88 Uplink DPCH info of the protocol, it contains the minimum spreading factor allowed in the uplink, an integer (4, 8, 16, 32, 64, 128, 256) (Minimum allowed SF of t...

Claims

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Application Information

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IPC IPC(8): H04J13/02H04J13/16
Inventor 徐云翔
Owner ZTE CORP
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