|
Bit Scrambling to avoid a long "0" / "1" generated in the transmission, which can reduce the transmission and reception error, bit scrambling does not affect the transmission bandwidth.MAC-hs flow control feature allows the RNC sends to the Node B of the data flow is kept in a certain state, the notebook battery does not because the buffer of the Node B is not enough to result in loss of data to be transmitted. When there is data to be sent to the Node B when the RNC, RNC will send the request to the Node B only Node B only a certain free space buffer pool to allow the RNC to send data. , HSDPA link budget analysis result, we can analyze the budget process, the change of the coverage effect in the case of different rates, as shown in Figure 1. During the budget process simulation, we can consider the use of simulation platform simulation to get a lower rate HSDPA channel continuous coverage of the distance covered, to assess the urban coverage of HSDPA.the control of the fast packet scheduling in the Node B MAC-hs protocol.According to the status of the link, it can quickly adjust the transmission rate of the channel and the combination of FEC and retransmission, the physical layer HARQ by high-level control. HSDPA traffic channel can be seen in Figure 1, when the rate is reduced to about 250 ~ 300kbps coverage to the cell edge of the dense urban areas, that may be formed of 100% of continuous coverage. According to the actual wireless environment may be set appropriately orthogonal factor can be obtained as shown in Figure 1, when the UE is in the base station near point, the cell HSDPA traffic increased significantly, the laptop battery can play HSDPA high-speed download. When HSDPA users at the cell edge, external interference, we can observe the IOR / IOC changes, examine the system performance of HSDPA users in the cell edge. Acer Aspire 7520 battery Acer Aspire 7750g battery Acer Aspire One d255 battery Acer Emchines e525 battery
Related Articles -
Acer Aspire 7520 battery, Acer Aspire 7750g battery, Acer Aspire One d255 battery, Acer Emchines e525 battery,
|
