802.16 协议解读 中文
802.16 协议解读 中文
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详细内容
1 802.16 协议概述.......................................................................................................................................9
1.1 802.16 协议参考模型................................................................................................................9
2 服务汇聚子层(Service specific CS) ...............................................................................................10
2.1 ATM 汇聚子层(ATM CS)...............................................................................................10
2.2 包汇聚子层(Packet CS)...................................................................................................10
2.2.1 MAC SDU 格式..............................................................................................................10
2.2.2 分类....................................................................................................................................11
2.2.3 汇聚层的分类(Classification within the CS) ...................................................12
2.2.4 负荷头压缩(PHS) ....................................................................................................12
2.2.4.1 PHS operation.........................................................................................................12
2.2.4.2 PHS 信令.................................................................................................................14
3 MAC 公共子层(MAC common part sublayer)............................................................................15
3.1 点对多点拓朴结构(PMP)...............................................................................................15
3.2 多点对多点网络拓朴结构(MESH).............................................................................16
3.3 MAC 服务定义........................................................................................................................16
3.3.1 PMP MAC 服务定义.....................................................................................................16
3.3.1.1 原语 .................................................................................................................16
3.3.1.1.1 MAC_CREATE_CONNECTION.request...................................17
3.3.1.1.2 MAC_CREATE_CONNECTION.indication..............................18
3.3.1.1.3 MAC_CREATE_CONNECTION.r esponse................................19
3.3.1.1.4 MAC_CREATE_CONNECTION.confirmation ........................19
3.3.1.1.5 MAC_TERMINATE_CONNECTION.request..........................20
3.3.1.1.6 MAC_TERMINATE_CONNECTION.indication.....................20
3.3.1.1.7 MAC_TERMINATE_CONNECTION. response......................21
3.3.1.1.8 MAC_TERMINATE_CONNECTION. confirmation ..............21
3.3.1.1.9 MAC_DATA.request.........................................................................22
3.3.1.1.10 MAC_DATA.indication....................................................................22
3.3.1.2 MAC service stimulation of DSx messages ...................................................23
3.3.2 MAC service definition for Mesh...............................................................................24
3.4 数据/控制平面(Data/Control plane) ............................................................................25
3.4.1 寻址与连接......................................................................................................................25
3.4.1.1 PMP...........................................................................................................................25
3.4.1.2 MESH.......................................................................................................................26
3.4.2 MAC PDU 格式..............................................................................................................26
3.4.2.1 MAC PDU 头格式................................................................................................26
3.4.2.1.1 Generic MAC header .........................................................................26
3.4.2.1.2 Bandwidth request header.................................................................28
3.4.2.2 MAC 子头...............................................................................................................28
3.4.2 .2.1 分段子头...............................................................................................29
3.4.2.2.2 授权管理子头 .....................................................................................29
3.4.2.2.3 级联子头(PACKING).................................................................30
3.4.2.2.4 MESH 子头.............................................................................................30
3.4.2.2.5 FAST-FEEDBACK 分配子头........................................................30
3.4.2.3 MAC 管理消息......................................................................................................31
3.4.2.3.1 Downlink Channel Descriptor (DCD) ...........................................33
3.4.2.3.2 Downlink Map (DL-MAP)...............................................................36
3.4.2.3.3 Uplink Channel Descriptor (UCD).................................................37
3.4.2.3.4 Uplink Map (UL-MAP)....................................................................38
3.4.2.3.5 Ranging Request (RNG-REQ) ........................................................39
3.4.2.3.6 Ranging response (RNG-RSP)........................................................41
3.4.2.3.7 Registration Request (REG-REQ) ..................................................41
3.4.2.3.8 Registration Response (REG-RSP)................................................43
3.4.2.3.9 DSA-REQ.............................................................................................44
3.4.2.3.10 DSA-RSP ..............................................................................................48
3.4.2.3.11 DSA-ACK.............................................................................................49
3.4.2.3.12 DSC Request (DSC-REQ)................................................................49
3.4.2.3.13 DSC Response (DSC-RSP) ..............................................................49
3.4.2.3.14 DSC Acknowledge (DSC-ACK) ....................................................50
3.4.2.3.15 DSD-REQ.............................................................................................50
3.4.2.3.16 DSD-RSP ..............................................................................................50
3.4.2.3.17 Multicast Polling Assignment Request (MCA-REQ)................51
3.4.2.3.18 Multicast Polling Assignment Response (MCA-RSP)..............52
3.4.2.3.19 Downlink Burst Profile Change Request (DBPC-REQ) ..........52
3.4.2.3.20 Downlink Burst Profile Change Response (DBPC-RSP).........52
3.4.2.3.21 Reset Command (RES-CMD).........................................................53
3.4.2.3.22 SS Basic Capability Request (SBC-REQ)....................................53
3.4.2.3.23 SS Basic Capability Response (SBC-RSP)..................................54
3.4.2.3.24 Clock Comparison (CLK-CMP).....................................................55
3.4.2.3.25 De/Re-register Command (DREG-CMD)....................................55
3.4.2.3.26 DSx Received (DSX-RVD) .............................................................56
3.4.2.3.27 Config File TFTP Complete (TFTP-CPLT)................................56
3.4.2.3.28 Config File TFTP Complete Response (TFTP-RSP) ................57
3.4.2.3.29 Channel measurement Report Request/Response
(REP-REQ/RSP) .............................................................................................................57
3.4.2.3.30 Fast Power Control ( FPC) 消息.....................................................58
3.4.2.3.31 SS De-registration Request (DREG-REQ) message..................59
3.4.3 构造及传输 MAC PDU(Construction and transmission of MAC PDUs) 59
3.4.3.1 约定(Conventions) ................................................................................59
3.4.3.2 级联(Concatenation).............................................................................61
3.4.3.3 分段(Fragmentation).............................................................................62
3.4.3.3.1 Non-ARQ Connections .....................................................................62
3.4.3.3.2 ARQ-Enabled Connections ..............................................................62
3.4.3.4 组包(PACKING)....................................................................................62
3.4.3.5 CRC calculation.....................................................................................................64
3.4.3.6 Encryption of MAC PDUs..................................................................................64
3.4.3.7 填充(Padding).........................................................................................64
3.4.4 ARQ mechanism.............................................................................................................65
3.4.5 上行链路调度服务(Uplink scheduling service) ..............................................65
3.4.5.1 发送调度(Outbound transmission scheduling)..............................65
3.4.5.2 上行链路请求/准许调度(Uplink request/grant scheduling) .....66
3.4.5.3 UGS...........................................................................................................................66
3.4.5.4 rtPS...........................................................................................................................67
3.4.5.5 nrtPS..........................................................................................................................67
3.4.5.6 BE service................................................................................................................67
3.4.6 带宽分配及请求机制(Bandwidth allocation and request mechanisms) ...67
3.4.6.1 请求(Requests).......................................................................................67
3.4.6.2 准许(Grants)............................................................................................68
3.4.6.3 轮询(Polling) ..........................................................................................70
3.4.6.3.1 单播轮询(Unicast).............................................................................70
3.4.6.3.2 多播与广播(Multicast and broadcast)....................................72
3.4.6.3.3 PM bit ....................................................................................................72
3.4.6.4 竞争带宽请求(Contention-based focused Bandwidth Requests for
WirelessMAN-OFDM)........................................................................................................73
3.4.6.5 Contention-based CDMA Bandwidth Requests for
WirelessMAN-OFDMA.........................................................................................................74
3.4.6.6 Optional Mesh topology support.......................................................................74
3.4.7 物理层对 MAC 层的支持(MAC support of PHY) ........................................74
3.4.7.1 FDD...........................................................................................................................74
3.4.7.2 TDD..........................................................................................................................75
3.4.7.3 DL-MAP..................................................................................................................76
3.4.7.4 UL-MAP..................................................................................................................76
3.4.7.4.1 Uplink timing.......................................................................................76
3.4.7.4.2 Uplink allocations...............................................................................76
3.4.7.4.3 Uplink interval definition..................................................................76
3.4.7.5 Map relevance and synchronization .................................................................77
3.4.7.5.1 WirelessMAN-SC PHY....................................................................78
3.4.7.5.2 WirelessMAN-SCa PHY..................................................................78
3.4.7.5.3 WirelessMAN-OFDM PHY.............................................................78
3.4.7.5.4 WirelessMAN-OFDMA PHY.........................................................78
3.4.7.5.5 Optional Mesh mode..........................................................................78
3.4.7.6 Optional MAC AAS Support of WirelessMAN-SCa, OFDM and
OFDMA 78
3.4.8 竞争解决(Contention resolution).........................................................................79
3.4.8.1 发送时机(Transmission opportunities)............................................80
3.4.9 网络接入与初始化........................................................................................................81
3.4.9.1 下行信道的扫描和同步............................................................................83
3.4.9.2 获取下行链路参数.....................................................................................83
3.4.9.3 获取上行链路参数 .....................................................................................85
3.4.9.4 扫描和上行链路参数获取过程中的消息流.......................................87
3.4.9.5 起始测距和自动调整.................................................................................88
3.4.9.6 测距参数调整...............................................................................................91
3.4.9.7 基本能力协商...............................................................................................92
3.4.9.8 SS 授权和密钥交换.............................................................................................93
3.4.9.9 注册 .................................................................................................................93
3.4.9.9.1 IP 版本协商.........................................................................................96
3.4.9.10 建立 IP 连接..................................................................................................96
3.4.9.11 日期时间的建立..........................................................................................97
3.4.9.12 传送运行参数...............................................................................................97
3.4.9.13 业务连接建立...............................................................................................98
3.4.9.14 MESH 方式下的网络接入和同步.........................................................98
3.4.10 测距...................................................................................................................................98
3.4.10.1 下行突发属性管理 .....................................................................................98
3.4.10.2 上行链路周期测距 ...................................................................................101
3.4.10.3 基于 OFDMA 的测距..............................................................................104
3.4.11 通道描述更新(Update of channel descriptors)....................................................105
3.4.12 Assigning SSs to multicast groups...........................................................................107
3.4.13 QoS..................................................................................................................................108
3.4.13.1 Theory of operat ion ...................................................................................108
3.4.13.2 Service flows ...............................................................................................109
3.4.13.3 对象模型.......................................................................................................111
3.4.13.4 Service classes.............................................................................................113
3.4.13.5 Authorization...............................................................................................114
3.4.13.6 Types of service flows...............................................................................115
3.4.13.6.1 Provisioned service flows ...............................................................116
3.4.13.6.2 Admitted service flows....................................................................116
3.4.13.6.3 Active service flows.........................................................................118
3.4.13.7 Preprovisioned service flow creation ....................................................118
3.4.13.8 Dynamic service flow creation ...............................................................118
3.4.13.8.1 Dynamic service flow creation— SS-initiated ...........................119
3.4.13.8.2 Dynamic service flow creat ion— BS-initiated...........................119
3.4.13.9 Dynamic service flow modification and deletion ..............................120
3.4.13.10 Service flow management ........................................................................121
3.4.13.10.1 Overview.............................................................................................121
3.4.13.10.2 Dynamic Service Flow state transitions......................................122
3.4 .13.10.3 DSA ......................................................................................................130
3.4.13.10.4 DSC ......................................................................................................141
3.4.13.10.5 Connection release............................................................................153
4 加密子层....................................................................................................................................................160
4.1 架构 ..........................................................................................................................................160
4.1.1 数据包的加密 ...............................................................................................................160
4.1.2 密钥管理协议 ...............................................................................................................160
4.1.3 安全组(security association) ...............................................................................161
4.1.4 连接到 SA 的映射.......................................................................................................161
4.1.5 加密算法组件 ...............................................................................................................161
4.2 PKM 协议...............................................................................................................................162
4.2.1 终端授权和 AK 交互概述........................................................................................162
4.2.2 TEK 交换概述..............................................................................................................163
4.2.2.1 PMP 结构的TEK 交换概述...........................................................................163
4.2.2.2 MESH 结构的TEK 交换概述........................................................................164
4.2.3 安全能力的选择...........................................................................................................164
4.2.4 授权状态机....................................................................................................................164
4.2.4.1 状态 ...............................................................................................................165
4.2.4.2 消息 ...............................................................................................................166
4.2.4.3 事件 ...............................................................................................................166
4.2.4.4 参数 ...............................................................................................................167
4.2.4.5 动作 ...............................................................................................................168
4.2.5 TEK 状态机...................................................................................................................168
4.2.5.1 状态 ...............................................................................................................169
4.2.5.2 消息 ...............................................................................................................169
4.2.5.3 事件 ...............................................................................................................169
4.2.5.4 参数 ...............................................................................................................169
4.2.5.5 动作 ...............................................................................................................169
4.3 动态 SA 的创建和映射.......................................................................................................169
4.3.1 动态 SA 的创建............................................................................................................169
4.3.2 SA 的动态映射.............................................................................................................170
4.4 密钥的使用 .............................................................................................................................170
4.4.1 基站上密钥的使用......................................................................................................170
4.4.1.1 AK 的生命周期...................................................................................................170
4.4.1.2 基站侧的 AK 切换周期..........................................................................170
4.4.1.3 基站上 AK 的使用....................................................................................171
4.4.1.4 TEK 的生命周期................................................................................................172
4.4.1.5 基站上 TEK 的使用.................................................................................172
4.4.2 终端上密钥的使用......................................................................................................172
4.4.2.1 终端的重授权.............................................................................................172
4.4.2.2 终端上 AK 的使用....................................................................................174
4.4.2.3 终端上 TEK 的使用.................................................................................174
4.5 加密方法.................................................................................................................................174
4.5.1 业务数据的加密方法 .................................................................................................174
4.5.1.1 CBC 模式下的DES 数据加密.......................................................................174
4.5.1.2 CCM 模式下的AES 数据加密......................................................................174
4.5.1.2.1 PDU 负荷的格式.............................................................................174
4.5.1.2.2 包序号 PN..........................................................................................175
4.5.1.2.3 CCM 算法..........................................................................................175
4.5.1.2.4 接收数据时的处理原则.................................................................175
4.5.2 TEK 的加密...................................................................................................................175
4.5.2.1 使用 3-DES 加密TEK.............................................................................175
4.5.2.2 使用 RSA 算法加密TEK .......................................................................176
4.5.2.3 使用 AES 算法加密TEK-128...............................................................176
4.5.3 HMAC 摘要的计算.....................................................................................................176
4.5.4 TEK、KEK 和消息鉴权密钥的来源....................................................................176
4.5.4.1 DES 中的密钥.....................................................................................................176
4.5.4.2 3-DES KEK...........................................................................................................176
4.5.4.3 HMAC 鉴权密钥................................................................................................176
4.5.5 AK 的公钥加密............................................................................................................176
4.5.6 数字签名.........................................................................................................................176
4.6 数字证书的配置文件...........................................................................................................177
4.6.1 数字证书的格式...........................................................................................................177
5 WirelessMAN-OFDM PHY...................................................................................................................178
5.1 介绍 ..........................................................................................................................................178
5.2 OFDM 符号参数和发送信号............................................................................................179
5.3 信道编码.................................................................................................................................181
5.4 帧结构......................................................................................................................................192
5.5 ................................................................................................................................................................198
5.6 控制机制.................................................................................................................................198
5.6.1 同步.................................................................................................................................198
5.6.1.1 网络同步......................................................................................................198
5.6.2 测距.................................................................................................................................199
5.6.2.1 AAS 系统中的初始测距...........................................................................199
5.6.3 带宽申请.........................................................................................................................199
5.6.3.1 参数选择......................................................................................................200
5.6.3.2 全竞争发送 .................................................................................................202
5.6.3.3 Focused 竞争发送....................................................................................203
5.6.4 功率控制.........................................................................................................................203
5.7 Transmit diversity: Space-Time Coding (optional) .......................................................204
5.8 ................................................................................................................................................................204
5.9 ................................................................................................................................................................204
5.10 接收机要求 .............................................................................................................................204
5.10.1 接收灵敏度...........................................................................................................204
5.10.2 接收机的邻道和边带抑制...............................................................................206
5.10.3 接收机最大输入信号........................................................................................206
5.10.4 接收机最大容忍信号........................................................................................207
5.10.4.1 接收机的镜像抑制 ...................................................................................207
5.11 频率和定时要求....................................................................................................................207
6 Configuration............................................................................................................................................208
6.1 SS IP addressing.....................................................................................................................208
6.1.1 DHCP fields used by the SS.......................................................................................208
6.2 SS Configuration File............................................................................................................209
6.2.1 SS binary configuration file format..........................................................................209
6.2.2 Configuration file settings ..........................................................................................210
6.2.3 Configuration file creation 构建配置文件...........................................................210
6.2.3.1 SS MIC calculation MIC 计算.........................................................................211
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