HSDPA and R99/R4 the the hybrid carrier frequency network

HSDPA and R99/R4 the the hybrid carrier frequency network, HSDPA and R99/R4 business share the same carrier frequency power and code resources.The initial network construction general can be considered reserved the 5 yards words, about 30% of the power resources for HSDPA service. According to the survey on the performance of multi-vendor equipment, the maximum throughput of this configuration, a single cell supports HSDPA service is generally greater than 3Mbps average throughput is approximately in 1Mbps.computing power for HSDPA and codeword margin laptop battery as the basis for accounting cell can carry data traffic capacity.

The design flow is based on original R99/R4 network, such as cell radius, business model, after the introduction of HSDPA, the new bearer mapping strategy, new business models as well as traffic model, calculate R99/R4 load conditions, and can be assigned to HSDPA power and code resources and thus calculate the the HSDPA the edge coverage rate of the average user throughput (can be approximated that the throughput and assigned to the HSDPA is proportional to the power of) other indicators.HSDPA technology is the WCDMA standard introduced in R5 standard enhanced technology, through a shared channel transmission, higher order modulation, a shorter time interval (TTI),

Due to the downstream system capacity, especially HSDPA throughput and user distribution has a close relationship required by the simulation in order to provide more accurate and detailed results of the analysis.From the above analysis, we can see the early stages of development in the volume of business is not the network, after the introduction of HSDPA mixed carrier frequency the laptop battery original R99/R4 network coverage was less affected, and can take full advantage of the system code resources and power resources, improve cell downlink throughput requirements to better meet the needs of high-speed data services.

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