Communication system
A communication system and user equipment technology, applied in the field of communication systems, can solve the problem of users not having enough money and paying enough money, and achieve the effect of fine credit control
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[0023] The invention is described herein with reference to specific illustrative examples. However, this example is for explaining the present invention and does not limit its scope.
[0024] In particular, the invention is described here with reference to a specific UMTS (Universal Mobile Telecommunications System) network supporting user equipment such as mobile terminals 2 .
[0025] refer to figure 1 , shows the main elements of a UMTS network implementing an IP protocol system for explaining the invention. exist figure 1 Only the units relevant to understanding the embodiment of the present invention in the UMTS system are shown in the figure. A full implementation of such a system will be apparent to those skilled in the art.
[0026] figure 1 A UMTS network infrastructure 10 is shown generally, comprising: a radio access network 4 , a Serving GPRS Support Node (SGSN) 6 and a Gateway GPRS Support Node (GGSN) 8 . The radio access network generally consists of a plur...
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