§OPT 1 . HSDPA radio resource allocation strategies, whole network
SET MACHSPARA: LOCELL=0, RSCALLOCM=POWERCODE_BAL
This feature can balance the consumption of currently available code resources and power resources, to avoid code or power unilaterally congestion in order to improve resource utilization, enhance cell capacity. Relative to the code priority, the power code balance can enhance the cell downlink load, while reducing the resource utilization of code.
CODE_PRI: Code resource priority allocation strategy is mainly used in the power-limit scenario, this strategy led to a low ratio of power resource utilization in the power not limit scenario, thereby reducing the system throughput.
POWER_PRI: power resources for priority allocation, mainly used in the code resource constrained scenario, this strategy led to a low ratio of code resource utilization in the code not limit scenario, thereby reducing the system throughput.
§OPT 2. Configuring CQI Adjustment Based on Dynamic BLER Target
SET MACHSPARA: LOCELL=0, CQIADJALGOFNONCON=CQI_ADJ_BY_DYN_BLER;
With this feature, the NodeB can dynamically select the optimum BLER target value based on the channel quality fluctuation of HSDPA users. The NodeB then adjusts the Channel Quality Indicator (CQI) accordingly, improving user throughput and cell throughput.
NO_CQI_ADJ: The UE measures the Ec/No of the Common Pilot Channel (CPICH) and adds a Measurement Power Offset (MPO) as the Ec/No estimation value of the HS-PDSCH. That is, the UE assumes that the NodeB transmits the HS-PDSCH according to CPICH Power + MPO. Then, add the SF gain 10 * log16 to obtain the SNR of the HS-PDSCH. Obtain the CQI according to the relationship between the SNR and CQI of the simulated HS-PDSCH.
CQI_ADJ_BY_IBLER: 1st SBLER indicates the BLER of initial data transmission, also called IBLER. With this feature ,NodeB can adjust CQI to a proper value according IBLER . But in some scenario ,If the SBLER is always around 10% no matter how you move the position, it may results from enabling the function of channel adjustment.
§OPT 3. status transfer parameter optimization
state transition.jpg
Bookmarks