In digital trunked system, the delay performance of packet data service is greatly affected by the design of system's parameters and the network load.

数字集群系统的参数设计和网络负荷对分组数据业务的延迟具有很大的影响。

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Therefore, this paper analyzes the feature of 3G wireless packet data services on the basis of current data service models and introduces some typical packet data service models.

对未来3G无线分组数据业务的特性进行了分析，给出了若干典型的无线分组数据业务模型。

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YQL uses the table definition to convert the query data into an XML-encoded packet that is submitted, through POST, to the Wordpress.com web service.

YQL 使用表定义将查询数据转化成一个 XML 编码的数据包，之后通过 POST 将该数据包提交给 Wordpress.com web 服务。

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And it features what is called mobile Internet protocol (IP), a packet data service that requires users to pay only for the amount of data they send and receive rather than for the amount of time spent on line.

FORBES: Down To Earth

On the horizon, new data services such as GPRS (General Packet Radio Service) may make it cheaper for users to stay logged on to AIM all day.

CNN: AOL brings instant messenger to mobile phones

The smart phone market will only take off when technologies such as GPRS (General Packet Radio Service) are implemented in mobile networks, enabling faster transfer rates of data via mobile phone, she said.

CNN: Handheld use to soar in Europe