gprs 睡眠模式

GPRS：通用分组无线业务 (GPRS: General Packet Radio Service)

GPRS is an abbreviation of General Packet Radio Service. It is a non-voice, high-level speed packet switching technology planned for GSM networks. On 2G and 3G cellular transmission systems, it is a packet aligned wireless data communication service for mobile signal transmission.

GPRS是General Packet Radio Service的缩写 。 这是为GSM网络计划的一种非语音，高速度的分组交换技术。 在2G和3G蜂窝传输系统上，它是用于移动信号传输的分组对齐的无线数据通信服务。

It operates based on the modulation technique which is also called Gaussian minimum-shift keying (GMSK). To allow GPRS on a GSM or TDMA network, we need to put in two core modules which are,

它基于也称为高斯最小频移键控(GMSK)的调制技术进行操作。 为了允许GPRS在GSM或TDMA网络上运行，我们需要放入两个核心模块，分别是

• The Gateway GPRS Service Node (GGSN)

  网关GPRS服务节点(GGSN)

• The Serving GPRS Service Node (SGSN)

  服务GPRS服务节点(SGSN)

Image source: http://www.vector-logo.net/logo/GPRS-37187.html

图片来源：http://www.vector-logo.net/logo/GPRS-37187.html

Image source: https://www.researchgate.net/figure/GPRS-architecture-network_fig1_301887709

图片来源：https://www.researchgate.net/figure/GPRS-architecture-network_fig1_301887709

GPRS有什么作用？ (What GPRS does?)

Based on internet protocols, GPRS can be used to give network connections that favor a broad diversity of enterprises as well as commercial applications.

基于Internet协议，GPRS可用于建立网络连接，从而有利于广泛的企业和商业应用。

GPRS的优势 (Advantages of GPRS)

• In comparison to fixed telecommunication networks, it gives higher data transfer speed. Its prime speed is 171.2 kbps, which is nearly thrice than fixed-telecommunication speed in rapidness.

  与固定电信网络相比，它具有更高的数据传输速度。 它的主要速度为171.2 kbps，在速度上比固定电信速度快三倍。

• It gives quick immediate connection and instant data transfer.

  它提供快速的即时连接和即时的数据传输。

• It is very effective in the matter of cost.

  在成本方面非常有效。

• It has original and higher-level applications. It gives applications of the internet over mobile and also makes easier Web browsing, IM messages, E-commerce, etc.

  它具有原始和更高级别的应用程序。 它提供了移动互联网的应用程序，还使Web浏览，IM消息，电子商务等更加容易。

• It enables a user to connect to the Internet even when the availability of other services such as 3G or HSDPA is not there.

  即使没有其他服务(例如3G或HSDPA)的可用性，它也使用户能够连接到Internet。

• In case of mobility, any location from where there is a network signal available, GPRS gives wireless access to the Internet.

  在移动性的情况下(从网络信号可用的任何位置开始)，GPRS可以无线访问Internet。

• It enables the concurrent use of both voice and data services. Therefore, a user can have both voice call and data call at the same time. Data call alludes to the use of the internet by browsing or downloading or uploading data.

  它允许同时使用语音和数据服务。 因此，用户可以同时进行语音通话和数据通话。 数据通话通过浏览或下载或上传数据来暗示互联网的使用。

• As stated in the GSM standard, GPRS reuses almost identical air interfaces such as TDMA/FDMA, Bursts, frame structure. It makes use of normal burst and access burst stated by GSM.

  如GSM标准所述，GPRS重用了几乎相同的空中接口，例如TDMA / FDMA，突发，帧结构。 它利用了GSM规定的普通突发和接入突发。

• Single 52 frame multi-frame for both traffic and signaling frame structure is used by GPRS which is different from GSM's dual structure of 26-frame multi-frame for traffic and 51-frame multi-frame for signaling.

  GPRS使用单一的用于通信和信令帧结构的52帧复帧，这与GSM的用于通信的26帧复帧和用于信令的51帧复帧的双重结构不同。

使用GPRS需要什么？ (What is needed to use GPRS?)

• An application with a GPRS modem.

  带有GPRS调制解调器的应用程序。

• A GSM/GPRS network.

  GSM / GPRS网络。

• A SIM card with GPRS service.

  具有GPRS服务的SIM卡。

• A remote station with access to the internet or the GPRS network.

  可以访问Internet或GPRS网络的远程站。

GPRS is contemplated as 2.5G technology due to its more enhanced technology than standard 2G digital technology, but the necessity of 3G technologies it does not fulfill.

GPRS被认为是2.5G技术，因为它比标准2G数字技术增强了技术，但是3G技术的必要性却不能满足。

翻译自: https://www.includehelp.com/dictionary/gprs-full-form.aspx

gprs 睡眠模式