一个用于传输少量数据的争用上行通道，用于传输比如初始接入或非实时的控制或业务数据。
A contention based uplink channel used for transmission of relatively small amounts of data, e. g. for initial access or non-real-time dedicated control or traffic data.
为了实时传输话音信息，传真业务只能采用非实时方式，利用存储转发技术来实现。
The FAX service in MUX is non real time one, which is implemented by means of store&forward. The implementation of FIU should be deeply considered the compatibility issue with other fax machines.
未来无线网络不仅向用户提供非实时的数据业务同时也提供实时的诸如话音、视频等多媒体业务，这就要求无线网络必需向用户提供不同要求的服务质量保证。
The next generation wireless networks are being called upon to support not only data traffic but also real-time interactive multimedia traffic such as audio and video.
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