Method and base station for regulating initial block error rate IBLER

Abstract

The embodiment of the invention relates to a method for adjusting initial-transmission block error rate IBLER. The method comprises the following steps: the power limit situation of a user is acquired; when user power is limited, a channel quality indicator CQI reported by the user is adjusted to ensure that the IBLER of the user converges at a first IBLER target value; and when the user power is not limited, the power is adjusted to ensure that the IBLER of the user converges at a second IBLER target value, wherein the first IBLER target value is more than the second IBLER target value. Another embodiment of the invention relates to a base station. By adopting the method and the base station, IBLER different adjustment modes are chosen according to the power limit situation of the user; when the power is limited, the IBLER converges at the working point with optimum power efficiency by adjusting the CQI; and when the power is not limited, the IBLER of the user converges at a lower target value by increasing transmit power, so as to promote system throughput and reduce data transmission delay.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and a base station for adjusting IBLER (Initial Block Error Rate). Background technique [0002] With the development of mobile communication technology, HSDPA technology has matured day by day. In HSDPA, a CQI (Channel Quality Indicator, channel quality indicator) is used to identify the channel quality received by the UE and the demodulation capability of the UE (User Equipment, user equipment). During the HSDPA transceiver process, the UE reports the current channel quality to the sender in the form of CQI value, and the sender adjusts the size of the sent data according to the quality of the channel and adopts an appropriate data modulation method. However, according to the current test, due to the low requirements of the protocol on the terminal CQI measurement performance and the implementation of the terminal, the CQI reported by the UE in the actual...

AI Technical Summary

Problems solved by technology

However, the CQI adjustment method in the existing HSDPA system is to adjust the BE and stream services according to the cell according to the IBLER. However, in a cell, there may be power-limited and power-unlimited scenarios at the same time. For example, the remote user It belongs to the scenario of limited power, while the near-end user belongs to the scenario of unlimited power. In this case, adjusting the user IBLER according to the total power of the cell according to the above method is not applicable to all users.

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