| Summary: | 碩士 === 國立交通大學 === 資訊科學與工程研究所 === 105 === There are many base stations still exist in modern times. The distance between base station must not be close because it would cause some area have bad reception by interfering. Bad reception will also happened in the basement or shadowing. The problem described above can be solved by Small Cell. Small Cell are not only increase coverage but also share the flow with base stations, and the cost of power and set up are very low, so we can set up some Small Cell at the place where have huge number of users, like stations, office building, downtown etc.
This paper shows the implementations of Single-Core Small Cell and Dual-Core Small Cell and it would pass the stress test in 5Mhz bandwidth of LTE. In the architecture of Dual-Core, we verify the control and data transfer between two DSP and bus extension test in a frame. We prove the architecture of Dual-Core can be scale-up. We can extend 16 DSP and 16 hardware accelerator by not increasing the number of bus. If we increase the number of bus, we can extend more DSP and hardware accelerator. We test the performance of our platform in 20Mhz bandwidth of LTE which contains the maximum number of data in a subframe. The Uplink flow and Downlink flow of our implementation can be done in one millisecond which is the time limit of a subframe in LTE standards.
|
|---|
