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CDMA-2000 数据网络

Richard Chen Greater China Strategic Marketing. CDMA-2000 数据网络. cdma2000 1X Functionality Overview cdma2000 1X 功能概览. 峰值数据率( Peak Data Rate)=153kpbs; 流量/容量( Throughput/Capacity ) =144 kbs 与 IS95-A/B 后向兼容( Backward Compatible)

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CDMA-2000 数据网络

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  1. Richard Chen Greater China Strategic Marketing CDMA-2000 数据网络

  2. cdma2000 1X Functionality Overview cdma2000 1X 功能概览 • 峰值数据率(Peak Data Rate)=153kpbs; 流量/容量(Throughput/Capacity )=144kbs • 与IS95-A/B后向兼容(Backward Compatible) • Supports handoffs between A/B/1X, carrier overlay, and overflow of both voice and data through load management 支持A/B/1X间的切换,支持载波层叠,通过负载管理进行语音和数据的流量控制 • Supports Voice, Mixed Voice/Data, and 2-Way Services on a Single Carrier 在单载波上支持语音,混合语音/数据及双向服务 • Dynamically Optimizes Data Capacity Based on Underlying Voice Utilization 根据下层语音的利用度,动态优化数据容量

  3. cdma2000 1x Data Architecture • cdma2000 1x的数据结构 • Packet Data Serving Node (PDSN) • Bridges the Radio Access Network • and Packet Data Network • PPP Termination • Packet Accounting • Mobile IP Foreign Agent HLR Home Access Provider Network Home AAA Home IP Network IP Network HA Home ISP Private Network Visited Provider Home Provider VLR SS7 Network Visited Access Provider Network 被访接入服务商的网络 Visited AAA R-P Interface PDSN Mobile Station Mobile Client Access Network PCF FA R-P interface A10/A11 MIP/GRE : Primary Data Components 基本数据单元

  4. Packet Data Service Node(PDSN)分组数据服务节点(PDSN) • Functionality 功能 • Bridges the Radio Access Network and Packet Network 桥接无线接入网络和分组网络 • PPP Termination PPP终结 • Mobile IP Foreign Agent 移动IP外部代理 • Packet Accounting 分组包的计费 • Motorola AN supports PDSN from multiple venders with the open A10/A11 interface摩托罗拉的AN通过开放的A10/A11接口支持多家PDSN • For example KDDI chose 3Com PDSN for their cdma2000 1X data network 例如KDDI选择3Com的PDSN用在CDMA20001X网络中 • KDDI’s decision was based on the consideration of supporting handoffs between 1X PDSN and IS-95B Packet IWU KDDI的决定是考虑到支持1XPDSN与IS-95B分组IWU间的切换 • Motorola had provided integration solution between 1X AN and 3Com PDSN for KDDI 摩托罗拉已经为KDDI提供了1XAN与3COM PDSN的集成方案

  5. Protocol Layers (Signaling) • 协议层(信令) MS BSS/PCF PDSN Home Agent Mobile IP Mobile IP IKE IKE Mobile IP UDP UDP UDP IP IP IP/IPsec IP/IPsec PPP PPP Link Layer Link Layer LAC LAC Link Layer A10/A11 Link Layer A10/A11 MAC MAC CDMA 2000 Air link CDMA 2000 Air link Wired Physical Wired Physical Wired Physical Air Interface A11 Interface

  6. Protocol Layers (Bearer) • 协议层(承载) Upper Layer Upper Layer Upper Layer Upper Layer IP IP IP IP IPsec IPsec PPP PPP Link Layer Link Layer Link Layer Link Layer LAC LAC A10/A11 A10/A11 MAC MAC CDMA 2000 Air link CDMA 2000 Air link Wired Physical Wired Physical Wired Physical Wired Physical Air Interface A10 Interface MS BSS/PCF PDSN Home Agent Application Server

  7. PDSN Cluster - Selection, Load Balancing and Redundancy 选择,负载均衡和冗余 顺从标准的 A11 接口 Mobile Station Mobile Client PDSN1 Sessions MN1 MN2 PDSN2 Sessions MN5 MN7 RAN • A PDSN Cluster is a group of Cisco PDSN on the same IP subnet with PDSN selection function enabled PDSN集群是在同一IP子网上具备选择功能的一组PDSN • Standards compliant符合标准 • Utilizing A11 code 136 • Minimizes inter-PDSN handoff 减少PDSN间切换 • Provides load balancing 提供负载均衡 • Provides high availability 提供高可用性

  8. Cisco PDSN • Platform 平台 • 基于广泛采用的Cisco 7500 系列模块式高端路由器平台 • 运营标准的功能丰富的 Cisco IOSTM软件 • 10/100Mbps Ethernet, ATM, FDDI, Token Ring, T1/E1, 串行, 通道化, 多通道, 等等. • 热插拔可替换接口模块

  9. VIP VIP VIP VIP Four VIP Slots Cisco 7505 Architecture and Capacity Cisco 7505 结构与容量 Route Switch Processor • Single route switch processor 单路由交换处理器 • 1-Gbps Cybuses 1-Gpbs总线 • VIPs provide mixed media, high-port density and high bandwidth VIP提供多媒体,高端口容量,高带宽 • Distributed switching and Cisco IOS services and scalable performance 分布式交换,Cisco IOS服务及可扩展性能 • Capacity 容量 • 支持1X至3G网络中的任何速率 (单用户可高达 2Mbps) • 每单元支持8000 个激活的PPP会话 • 对 1500-byte的R-P 接口包可承载到60 Mbps

  10. O&M for PDSN: OMC-IP • Do not use the term CEM, as you will not find this in any other documentation. • In the 16.0 timeframe the OMC-IP will support the 7505 router, but does not provide specific support for “PDSN” as an application. There really is no product on the marketplace where this is true. Plan of record has UNO performing PDSN configuration mgmt, and support of PDSN’s SNMP interface. • 3. The hardware required is multiple platforms, not a single Ultra60 and multiple Cisco software products. Cisco Works 2K, and Cisco WanManager • O&M for PDSN is based on OMC-IP PDSN的操作和维护是通过OMC-IP实现的 • OMC-IP • Provide element management facilities for Cisco equipments: 对Cisco设备提供单元管理功能 • MGX8850 Aggregation Node • Catalyst6509 Ethernet Switching • Inter-RAN Gateway (Cisco 3660 series router) • PDSN (Cisco 7505 router) • Integration of alarms and events from Cisco equipments into OMCR 将告警和事件信息从Cisco设备集中传送到OMCR • Hardware: SUN Ultra60 • Software: CiscoWorks2000

  11. cdma2000 1x Data Architecture • cdma2000 1x的数据结构 HLR Home Access Provider Network Home AAA Home IP Network IP Network • Authentication, Authorization, Accounting • Server (AAA) • Authentication of profile information • Authorization of data services • Collects billing information from PDSN HA Home ISP Private Network Visited Provider Home Provider VLR SS7 Network Visited Access Provider Network 被访接入服务商的网络 Visited AAA R-P Interface PDSN Mobile Station Mobile Client Access Network PCF FA R-P interface A10/A11 MIP/GRE : Primary Data Components 基本数据单元

  12. Authentication, Accounting and Authorization (AAA)鉴权,计费,授权服务器(AAA) • Functionalities 功能 • Authentication 鉴权 • Different solutions for simple IP and Mobile IP对简单IP和移动IP提供不同方案 • Accounting 计费 • Collects Billing Information from PDSN 从PDSN收集计费信息 • Supports packet-based billing 支持基于分组的计费 • Motorola has provided accurate and flexible packet-based billing solutions to multiple customers in Japan, H.K. and Korea 摩托罗拉已经在日本,香港和韩国为多个客户提供了精确的,灵活的分组计费方案 • Authorization 授权 • User Profile Information 用户配置信息 • Platform 平台 • SUN workstation

  13. cdma2000 1x Data Architecture • cdma2000 1x的数据结构 HLR Home Access Provider Network Home AAA • Home Agent (HA) • Supports Mobile IP Foreign Agent Home IP Network IP Network HA Home ISP Private Network Visited Provider Home Provider VLR SS7 Network Visited Access Provider Network 被访接入服务商的网络 Visited AAA R-P Interface PDSN Mobile Station Mobile Client Access Network PCF FA R-P interface A10/A11 MIP/GRE : Primary Data Components 基本数据单元

  14. Simple IP vs Mobile IP简单IP与移动IP比较 • 通过公共网络接入内部网络 Home Network (200.1.0.0) Home Agent Mobile Node (201.1.0.41) Public IP Network Foreign Network 2 (202.1.0.0) Foreign Network 1 (201.1.0.0) Foreign Agent 2 Foreign Agent 1

  15. Simple IP vs Mobile IP简单IP与移动IP比较 • Mobile IP Key Components: 移动IP关键组件 • Mobile Node (MN) 移动节点(MN) • Home Agent (HA) 归属代理(HA) • Foreign Agent (FA) 外部代理(FA) • Mobile IP Key Processes 移动IP关键过程 • Agent discovery 代理寻找 • Registration 注册 • Tunneling 隧道 • IP address Assignment IP地址分配 • Simple IP: PDSN or AAA 简单IP: PDSN或AAA • Mobile IP: Home Agent 移动IP: 归属代理

  16. Home Agent Functionality HA的功能 • Proven commercial HA products • 现有商用HA产品 • HA function is currently available on most Cisco IOSTM router platforms HA功能目前在大多数Cisco IOSTM路由器平台上均已支持 • Functionality 功 能 • Authentication and authorization uses AAA servers 利用AAA执行鉴权和认证 • Assign IP address after authentication 鉴权后分配IP地址 • Optionally, securely tunnels packets to PDSN, Maintains user registration and redirects packets to the PDSN 执行用户登记和转发数据包到服务PSDN • 作为可选功能，数据包通过安全隧道技术传输到PDSN

  17. Mobility Management移动性管理 • Continuity of data service during interface change from one entity to another 当接口在不同实体间改变时,保持数据服务的连贯性 • Keep the IP address for the mobile (Layer 3) 为移动用户保持IP地址(第3层) • Keep the PPP session in PDSN serving Area (Layer 2) 在PDSN服务区中保持PPP会话(第2层) • Inter-PDSN handoff PDSN间切换 • For Simple IP, Set up new PPP session with new IP address 对简单IP,需用新的IP地址建立新的PPP会话 • For Mobile IP, determine new FA, registration with HA again and maintain original IP address 对移动IP,决定新的外部代理,在归属代理再次注册,并维持原来的IP地址

  18. Inter-PDSN Handoff for Simple IP 简单IP的PDSN间切换 CBSC-2 MM-2 BTS-2 Proxy RADIUS - PCF-2 PDSN-2 Home RADIUS (201.1.0.41) (202.1.0.41) Application Server CBSC-1 MM-1 IP Network BTS-1 PCF-1 PDSN-1 HA Inter-PDSN Handoff

  19. Inter-PDSN Handoff for Mobile IP 移动IP的PDSN间切换 CBSC-2 MM-2 BTS-2 Proxy RADIUS - PCF-2 PDSN-2/FA-2 Home RADIUS (201.1.0.41) Application Server CBSC-1 MM-1 Public IP Network BTS-1 PCF-1 PDSN-1/FA-1 HA

  20. Compression压缩 • PPP Compression PPP压缩 • Compression at PPP layer to improve throughput 在PPP层压缩以提高流量 • PDSN will bill for the uncompressed amount of data PDSN对未压缩的数据量计费 • PPP compression algorithms include MPPC and STAC PPP压缩算法包括MPPC和STAC • Compression Rate for MPPC 对MPPC的压缩率 • ASCII files: 2.5 to 4 times • Kanji files (Japanese): 2.5 to 3.5 times (Similar to Chinese Character) • Bin files: 2 to 2.5 times • Zip, JPG files: no improvement • IP Header compression(V-J Compression) IP包头压缩(V-J压缩) • Improves the network performance with smaller overhead 更小的开销提高网络性能

  21. Security and VPN 安全性与虚拟专网 HLR Home Access Provider Network Private Server Private Server Private IP Network Public IP Network Public Server VLR SS7 Network Visited Access Provider Network Visited AAA R-P Interface PDSN Firewall Mobile Station Mobile Client Access Network PCF FA R-P interface A10/A11 MIP/GRE : Public Network Components : Private Network Components

  22. Security and VPN (continue)安全性与虚拟专网(续) • VPN can be helpful in solving the security by meeting the following Requirements: 要求 • Critical authentication to verify remote mobile user 严格的认证来校验远端移动用户 • Strong data encryption to protest sensitive information 强力的数据加密来保证敏感信息 • Centralized management and scalable to handle vast number of remote users 集中管理和扩展来处理大量的远端用户 • VPN Implementation 虚拟专网的实现 • L2TP • IP Sec • At Layer 5 or higher • Motorola CDMA2000 VPN is based on IP Sec with IKE(Internet Key Exchange) 摩托罗拉CDMA2000的虚拟专网是基于IP Sec和IKE (互连网密钥交换)

  23. Mobile Content Provider(MCP) configuration Diagram 配置框图 MCP is separated from ISP MCP与ISP分离 HLR Home Access Provider Network Mobile Content Provider Home AAA Home IP Network Public IP Network HA Home ISP Private Network Visited Provider Home Provider VLR SS7 Network Visited Access Provider Network Visited AAA R-P Interface PDSN Mobile Station Mobile Client Access Network PCF FA R-P interface A10/A11 MIP/GRE : Components owned by Unicom or a third party : Components owned by MCP

  24. Mobile Content Provider(MCP) configuration Diagram 配置框图 MCP is also an ISP MCP也是ISP HLR Home Access Provider Network Mobile Content Server MCP AAA MCP Home Network Public IP Network HA Home ISP Private Network Visited Provider Home Provider VLR SS7 Network Visited Access Provider Network Visited AAA R-P Interface PDSN Mobile Station Mobile Client Access Network PCF FA R-P interface A10/A11 MIP/GRE Gateway Router : Components owned by Unicom or a third party : Components owned by MCP

  25. MCP Solutions移动内容供应商解决方案 • Mobile Content Providers(MCP) provide content services for mobile subscribers and charge for what they provide 移动内容供应商对移动用户提供内容服务并相应收费 • Two types of MCP based on the difference of billing Mode: 按不同的计费模式可划分为两种类型的MCP • Type1: Separated from ISP 类型一:与ISP分离 • Retrieves billing information from AAA owned by Unicom or a third party 从联通或第三方拥有的AAA中获取计费信息 • Needs additional interfaces for billing purpose 为实现计费的目的需增加另外的接口 • Type2: Combined with ISP 类型二:与ISP整合 • MCP owns the billing information for its authenticated users MCP对它的认证用户拥有计费信息 • No additional interfaces for billing 无需为计费加另外接口 • Motorola’s solution supports both types of MCP 摩托罗拉的方案支持这两种类型的MCP

  26. CDMA2000 1x Solution SummaryCDMA2000 1X数据方案小结 • Enables cdma2000 1X Voice and Data CDMA2000可同提供语音和数据 • Introduces new packet based components 引入基于分组的组件 • 1st step to migrate towards a packet network 演进到分组网络的第一步 • Enables higher capacities 提供高容量 • Allows new revenue generating opportunities 带来新的业务和收入增长机会

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