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📄 g6-1.htm

📁 介绍移动通信gsm原理的书籍
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            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3>电话业务是<SPAN 
            lang=EN-US>GSM移动通信网提供的最重要业务。经过GSM网和PSTN网,能为数字移动客户之间、数字蜂窝移动电话网客户月模拟蜂窝移动电话网客户之间以及与固定网客户之间,提供实时双向通信,其中包括各种特服呼叫、各类查询业务和申告业务,以及提供人工、自动无线电寻呼业务。<O:P> 
            </O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3>&nbsp;<O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp;&nbsp; 
            </SPAN><SPAN style="COLOR: #333399; FONT-FAMILY: 宋体"><B>(2) 
            紧急呼叫业务<O:P> </O:P></B><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp;&nbsp; 
            </SPAN><FONT face=楷体_GB2312 
            color=#000066>紧急呼叫业务来源于电话业务,它允许数字移动客户在紧急情况下,进行紧急呼叫操作,即拨119或110或120等时,依据客户所处基站位置,就近接入火警中心(119)、匪警中心(110)、急救中心(120)等。当客户按紧急呼叫键(SOS键)时,应向客户提示如何拨叫紧急中心。</FONT><O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3>紧急呼叫业务优先于其它业务,在移动台没有插入客户识别卡<SPAN 
            lang=EN-US>(SIM)或移动客户处于锁定状态时,也可按SOS键或拨112(欧洲统一使用的紧急呼叫服务中心号码,目前我国使用的移动台均符合欧洲标准),即可接通紧急呼叫服务中心(目前我国GSM移动通信网是用送辅导音方式,提示客户拨不同紧急呼叫服务中心号码呼叫不同紧急服务中心,因我国各紧急呼叫服务中心尚未联网)。<SPAN 
            style="mso-spacerun: yes">&nbsp;</SPAN></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT size=3><SPAN lang=EN-US><SPAN 
            style="mso-spacerun: yes">&nbsp; 
            </SPAN><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3>&nbsp;<O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="COLOR: #333399; FONT-FAMILY: 宋体"><FONT 
            size=3><B>(3) 短消息业务<SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;</SPAN></B><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp; 
            </SPAN><O:P></O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp;&nbsp; 
            </SPAN><FONT face=楷体_GB2312 
            color=#000066>短消息业务又可分为包括移动台起始和移动台终止的点对点的短消息业务和点对多点的小区广播短消息业务。移动台起始的短消息业务能使GSM客户发送短消息给其它GSM点对点客户;点对点移动台终止的短消息业务,则可使GSM客户接收由其它GSM客户发送的短消息。点对点的短消息业务是由短消息业务中心完成存储和前转功能的。短消息业务中心是在功能上与GSM网完全分离的实体,不仅可服务于GSM客户,亦可服务于具备接收短消息业务功能的固定网客户,尤其是把短消息业务与话音信箱业务相结合,更能经济地综合地发挥短消息业务的优势。点对点的信息发送或接收即可在MS处于呼叫状态(话音或数据)时进行,也可在空闲状态下进行。当其在控制信道内传送时,信息量限制为140个八位组(7比特编码,160个字符)。<O:P> 
            </O:P><O:P></O:P></FONT><FONT 
            color=#000066><O:P></O:P></FONT><O:P></O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3>点对多点的小区广播短消息业务是指在<SPAN 
            lang=EN-US>GSM移动通信网某一特定区域内以有规则的间隔向移动台MS重复广播具有通用意义的短消息,如道路交通信息、天气预报等。移动台连续不断地监视广播消息,并在移动台上向客户显示广播短消息。此种短消息也是在控制信道上发送,移动台只有在空闲状态时才可接收,其最大长度为82个八位组(7比特编码,92个字符)。<O:P> 
            </O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT><FONT 
            face=楷体_GB2312 size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT><FONT face=楷体_GB2312 
            size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT><FONT size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3>&nbsp;<O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp;&nbsp; 
            </SPAN><SPAN style="COLOR: #333399; FONT-FAMILY: 宋体"><B>(4) 
            可视图文接入<SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;</SPAN></B><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes"> </SPAN></SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp;</SPAN><O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3>可视图文接入是一种通过网路完成文本、图形信息检索和电子邮件功能的业务。</FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3>&nbsp;<O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp; </SPAN><SPAN 
            style="COLOR: #333399; FONT-FAMILY: 宋体"><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;</SPAN><B>(5) 
            智能用户电报传送<O:P> </O:P></B><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3>智能用户电报传送能够提供智能用户电报终端间的文本通信业务。此类终端具有文本信息的编辑、存储处理等功能。</FONT><FONT 
            size=3><SPAN lang=EN-US><O:P> </O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3>&nbsp;<O:P> 
            </O:P></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN 
            lang=EN-US style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp; </SPAN><SPAN 
            style="COLOR: #333399; FONT-FAMILY: 宋体"><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;</SPAN><B>(6) 
            传真<SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;</SPAN></B><SPAN 
            style="FONT-FAMILY: 宋体; mso-spacerun: yes">&nbsp;&nbsp; 
            </SPAN><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT face=楷体_GB2312 color=#000066 
            size=3>交替的语音和三类传真是指语音与三类传真交替传送的业务。自动<SPAN 
            lang=EN-US>3类传真是指能使客户经GSM网以传真编码信息文件的形式自动交换各种函件的业务。<O:P> 
            </O:P></SPAN></FONT><FONT face=楷体_GB2312 size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT><FONT face=楷体_GB2312 
            size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT><FONT size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"></P>
            <P class=MsoNormal 
            style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN 
            style="FONT-FAMILY: 宋体"><FONT size=3><SPAN 
            lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P></TD>
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      size=2>版权所有:移动通信国家工程研究中心 
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