the downlink rate the highest value of 14.4Mbps

In order to overcome the above WCDMA Release 99 restrictions on the data transfer, 3GPP Release 5 specifications proposed HSDPA (High Speed ??Downlink Packet Access), can not only overcome the limitations mentioned above, and can greatly enhance the downlink data transfer rate. According to the specifications, the downlink rate the highest value of 14.4Mbps, however, it is to how to achieve this goal?sign this return with the receipt of a single and the deliveryman take home, so that the plant can decide the next time you want send dessert over. Continued after the process: notice, delivery, receipt, and then return the amount of inventory.

Let us imagine, if today you are the owner of a snack shop, you do not usually buy a new product to the food factory, for example, a popular dessert. Since these desserts are all hand-made, so the plant can manufacture the daily quantity is very limited. Therefore, only when they are ready for your order, they will give you a collar goods notification to let you know the things you want to do, and at what time to send the goods to you. So you may periodically check for missed calls, after all, this is the most popular meals of your store, you definitely do not want to miss this notice from the factory.

the pick-up process is not much difference. Users regularly listen to those specified channel when the network decided to send data to the user, it will use the channel to inform the user. After receiving the notice, within a fixed time, immediately listen to the relative application to send data channel. After receipt of information, users need to respond to correctly receive that information, return to the network communication quality, that is, the user may can receive the maximum amount of information;, pursuant to which the network returns to determine'll be doing what kind of modulation, to send information to the user.

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