Often see someone asking if someone asks for GPRS and WAP, or ask what the phone nominal GPRS Class 10 is. Sometimes after answering, some people have asked, but the previous post is long because of time, and it is under, so I will put some knowledge about this in this regard to learn from the later people.
GPRS-General Packet Wireless Service, which is developed by the "Pack Exchange" concept to develop a wireless data transmission method. The GSM system uses the same circuit switching method as the voice in the data transmission, and the continuous connection from the transmitting end to the receiving end is required in advance. No matter whether there is countless data from the communication process, the channel is always monoped. GPRS group exchange is divided into several small packets, simultaneously or successively transmitted by different paths. GPRS does not exclude a fixed circuit, but can occupy multiple channels in one user, and multiple users can take up a channel. Therefore, GPRS can achieve "time online" without waste network resources, compared with the original GSM dial-up mode, and more important, GPRS can achieve high-speed data transmission.
GPRS belongs to 2.5g technology, so some people think it is an alternative to the GSM network. In fact, GPRS is GSM supplement in data, which superimposes a new data network on the original GSM online by adding some hardware devices and software upgrades. GPRS does not replace GSM's original data function. For most mobile phones that use GPRS, you can use GPRS Internet access, you can also use GSM original dial-up mode. Also some people think that GPRS is the replacement of WAP, as if there is GPRS, WAP will disappear. In fact, GPRS and WAP belong to two different categories, WAP is moving
A protocol of Internet content and services, and GPRS is a transmission mode of wireless data. We can imagine GPRS as a fast road. WAP is a vehicle driving on the road. Through this road, we can enjoy a variety of content and services quickly and easily. The opening of GPRS is a promotion of development of WAP. Use the GPRS terminal to enjoy a variety of WAP services quickly and easily.
The business that GPRS can provide
Evil business, move
Move information service, shift
Internet business, virtual professional network business, positioning service, multimedia business, etc., like online chat, shift
Data services for high-frequency transmission, remote monitoring, remote counting, etc., high frequency transmission are particularly suitable for GPRS.
We often say GPRS Class 10, some friends ask: What is GPRS Class 10? In fact, regardless of GPRS Class 10 or GPRS Class 8, both the number of channels that can be used by the GPRS terminal, like the mobile phone GPRS function is more Class 8, Class 10, Class 12, which does not mean 8, 10, 12 The channel can be used, and their total channel is 5, some people don't understand, what else is there? Answer - In fact, their distinction is mainly for upstream channels that can be used, and their downlink channels can use 4 channels; I will give some examples, like our OT735 is GPRS Class 10, its highest support Two uplink channels, it can use 4 downlink channels and 1 up-line channel, or can use 3 uplink channels and 2 downlink channels at the same time; GPRS Class 12 can support 4 up-line channels, not only can use 4 simultaneously 4 Down-line channels and one up-line channel, it can also use 1 downlink channel and 4 uplink channels at the same time; GPRS Class 8 only supports one up-line channel, which can only use 4 (or below) down channels and 1 Upstream channel.
