Method for determining transmission block size in high speed downlink grouping switch-in business

Abstract

The invention provides a method which can determine the size of a transmission block in the high speed downlink packet access service, wherein, the method comprises the following steps: the step one, the number of code channels required by the practicality is determined according to the corresponding relation of the wireless channel quality value reported by a user and the usable code channels of the high speed downlink packet access data channel, and the size of the transmission block which is corresponding to the number of the code channels required by the practicality is searched out in a UE capability set attribute table defined by the related protocols; the step two, all data quantities to be sent out in the queue which is to be sent out are calculated and whether the sum of the data quantities and the size value of the transmission block is smaller than the size value of the transmission block which is corresponding to the number of the code channels required by the practicality is judged, if the sum of the data quantities and the size value of the transmission block is smaller than the size value of the transmission block which is corresponding to the number of the code channels required by the practicality, the size of the transmission block is decreased; if the sum of the data quantities and the size value of the transmission block is not smaller than the size value of the transmission block which is corresponding to the number of the code channels required by the practicality, the size of the transmission block is not adjusted, thereby realizing the fine adjustment to the TBsize and achieving the effect to improve the throughput efficiency of the system.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for determining TBsize (transport block size) in HSDPA (High Speed ​​Downlink Packet Access, high-speed downlink packet access) service. Background technique [0002] Usually, when determining the TBsize, the TBsize is determined by simply relying on the corresponding relationship between the CQI (Channel Quality Indicator, wireless channel quality) value reported by the user and the number of available code channels of the HSDPA data channel in Table 1. The TBsize determined by this method considers fewer factors , can only make a rough adjustment to the TBsize. In actual use, there are many factors that can affect the channel quality of the wireless interface. If the selected TBsize is inappropriate, the block error rate of the channel is high, and the possibility of data packet retransmission or loss It is very large, which reduces the efficiency and quality of com...

AI Technical Summary

Problems solved by technology

[0002] Usually, when determining the TB size, the TB size is determined by simply relying on the corresponding relationship between the CQI (Channel Quality Indicator, wireless channel quality) value reported by the user and the number of available code channels of the HSDPA data channel in Table 1. The TB size determined by this method considers fewer factors , can only make a rough adjustment to the TBsize. In actual use, there are many factors that can affect the channel quality of the wireless interface. Very large, reducing communication transmission efficiency and quality

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