无线城市解决方案-千家论坛 - Powered by Discuz! Archiver

ggsnoopy 发表于 2011-8-16 16:32:00

无线城市解决方案

无线宽带城域网建设项目可以通过建设覆盖全市的无线宽带城域网，提供一个能为整个城市市民、企业、学校、医院、国内外旅游者以及所有政府机关，随时随地沟通交流的互动平台，以改进公共服务，实现“信息强市”，促进经济和社会发展，共同构建 “生活品质之城”。<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
无线局域（WLAN）的基本结构由接入点（AP）和接入控制器（AC）构成。由WLAN的基本结构结合INTERNET或其他网络已有的认证服务器（AS），用户可以最终实现移动数据的接入服务。<o:p></o:p>
AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">是WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">业务网络的小型无线基站设备，完成802.11x<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">标准的无线接入功能。AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">也是一种网络桥接器，是连接有线网络与无线局域网络的桥梁，任何WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">终端设备均可通过相应的AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">接入外部的网络资源。<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">在数据通讯方面，AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">负责完成它与WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">终端设备之间数据包的加密和解密。当用户在AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无缝覆盖区域移动时，WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">终端设备可以在不同的AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">之间切换（Switchover<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">），保证数据通讯不中断。<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">在安全控制方面，AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">可以通过网络标志来控制用户接入，在采用基于802.1x<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">的用户认证机制时，AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">能够和认证中心的认证服务器协同工作，来完成对WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">用户的认证。<o:p></o:p>
AC<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">在因特网和无线接入局域网之间充当网关（Gateway<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">）。对用户的认证、对网络的实时监控和搜集计费信息进行管理，是一个具有支持各种路由协议和支持众多网络管理功能的路由器。AC<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">可以直接与认证服务器AS<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">相连，或者通过RADIUS<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">网络与其相连。与标准的RADIUS<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">服务器相连可实现用户名/<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">密码认证<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线城市建设的目的一般是进行室外的道路、景区、热点、园区等的覆盖，为用户提供更快捷更广泛的无线数据接入服务。<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">为了实现无线数字城市建设的目标，对于不同的区域，不同的传播环境，不同的业务量需求，采用应不同的站型，不同的站间距和不同的天线类型，合理分布，达到用尽量少投资实现尽量好的覆盖效果。<o:p></o:p>
1<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">，城市主干道的覆盖；主干道路覆盖对数据流量的要求不高，一般容量不是问题，但对连续覆盖要求较高。对高速交通干道覆盖，可以采用高增益定向天线的方式对道路进行覆盖。<o:p></o:p>
2<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">，广场的覆盖；广场覆盖主要以公众用户上网为主，由于覆盖区域较为开阔所以可采用全向天线进行区域覆盖，但考虑到传输问题因此规划时可以采用Mesh<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">方式进行网络连接。<o:p></o:p>
3<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">，景区的覆盖；此类地区由于往往线路难以到位，必须采取MESH<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">或无线中继的方式进行覆盖。天线的选用需要考虑到景区整体的效果，可以采用仿真或仿生天线。<o:p></o:p>
4<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">，机场、车站、咖啡吧、茶室、休闲场所公共营业区域等室内区域的覆盖；室内场馆主要包括候机厅（候车室）、展览馆、体育场馆、高级写字楼、咖啡吧、室内茶室、大型室内商场等，可以采用普通无线控制器+AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">使用自带天线或连接室内天线的方式进行覆盖。<o:p></o:p>
5<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">，园区的覆盖；园区覆盖主要面向游牧应用的公众用户，多数区域较为开阔但可能存在树荫的阻挡。对于数据的突发流量要求不高，覆盖区域较为分散。覆盖可以考虑采用全向和定向天线的结合，对于线路不到位的地方也可以采用Mesh<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">或无线中继的方式进行无线组网。<o:p></o:p>
面对无线城市网络服务质量要求的日益提高，很多城市开始着手进行无线网络信息化建设，在城市信息化建设中，无线网络解决方案明显是比较优秀的解决方案。通过使用无线网络解决方案，无线城市可以实现以下应用：<o:p></o:p>
1，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线宽带上网<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">用户使用支持WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">接入的笔记本，PDA<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">等智能终端能够接入到WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">中，并能够高速的访问INTENET<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">。可以采用预付费或者后付费或与家庭宽带账号绑定等使无线用户体验到无所不在的网络接入。<o:p></o:p>
2，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线VPN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">业务<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">可以为企业用户，集团用户提供VPN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">业务，使移动用户可通过802.1x WPA2<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">的无线接入认证方式进行认证，通过后可直接访问起企业内网而无需IPSec<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">等VPN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">客户端。这样在整个城区内实现所有企业同城办公的功能，同时可以为企业用户以及集团用户等同时提供无线VOIP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">语音应用，使所有企业员工在同一个城市内可以使用内部号码互相呼叫，降低通信成本。<o:p></o:p>
3，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线网络租赁业务<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">运营商可以将热点的无线资源租赁给业主用于办公需求，考虑到上行网络带宽的利用以及办公数据的私密性，需要做到在同一个AP<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">上开通给业主的SSID<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">接入的用户所有流量必须在本地的VLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">进行交换，而公众WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">用户SSID<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">接入的用户流量则必须通过城域网汇聚所有热点的控制器集中交换。（Trapeze<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">先进的智能流量转发体系正是这种解决方案的代表）<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">运营商利用热点网络为临时需要无线访问企业内网的用户提供企业私有SSID<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">接入服务，该SSID<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">需能够根据需求在定点区域部署且该企业用户无线接入流量必须以隧道的方式跨越城域网接入企业内部网络，这些用户的企业接入策略完全由企业控制。<o:p></o:p>
4，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线定位服务<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">运营商可以通过强大的无线网络平台为其他企业或机关租赁无线定位服务，对于城市内的贵重资产，贵重出租物品，可以通过无线网络的定位技术及时查找物品所在的范围。<o:p></o:p>
5，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">个性化广告PORTAL/<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">广告业务<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">可以根据无线用户所处的位置或区域的不同，<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">向用户所推送的认证界面以及增值服务连接的内容都有所不同。如广告页面等，这样能够使服务更具个性化，便于一些区域性较强的增值业务的开展。<o:p></o:p>
6，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">视频传送、无线监控<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">可以使无线用户利用WLAN<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">网络开展会议电视、网上直播、IPTV<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">等实时业务。同时也可以在各个行业中使用，如消防，交警行业中，可以通过无线监控灵活的了解道路上，或者现场的信息，并可以支持即拍即传功能，如交警在事发现场可以通过手持拍照设备随时拍照，并即时将所拍照片回传到信息中心。<o:p></o:p>
7，  <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线POS<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">系统以及无线检票系统<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">在城市内的众多停车场以及大型体育场馆等地方，可以实现全城联网的收费系统，并且收费终端可以灵活部署以及灵活移动。对于大型体育赛事或演唱会等大型集会，无线检票的优势则更加明显，可以灵活的增加检票点，提高检票速度，同时也可以防止伪造门票的情况发生。<o:p></o:p>
8, <span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">无线局域网语音应用<o:p></o:p>
<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">在城市覆盖了无线网络的区域可以使用Wi-Fi<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">手机进行联络，网络范围内的Wi-Fi<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">手机通话完全不产生费用。这样可以极大提高无线覆盖环境下的单位的业务管理的效率，降低通信的运行费用，同时无线手机也能实现语音交换机所提供相应的功能和服务。若用户使用智能Wi-Fi<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">通信手机，还可实现手机高速上网（普通GPRS<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">为128K<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">最高，Wi-Fi<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">手机通过802.11n<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">技术最高可达<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" unitname="m" sourcevalue="300" hasspace="False" negative="False" numbertype="1" tcsc="0">300M</st1:chmetcnv><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">带宽）等一系列Wi-Fi<span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-weight: normal; mso-ascii-font-family: 'Times new=" New? Roman?? ?Times mso-hansi-font-family: Roman?; new="New">应用。<o:p> </o:p>
[此贴子已经被作者于2011/8/16 16:32:39编辑过]

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千家论坛_弱电智能化技术与工程讨论(建筑智能,家居智能,人工智能)'s Archiver

无线城市解决方案