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README
Apache-2.0

蜂窝通话

简介

蜂窝通话支持基于运营商网络的基础通话实现,包含基于2G/3G的CS(Circuit Switch,电路交换)通话和基于4G/5G的IMS(IP Multimedia Subsystem,IP多媒体子系统)通话,包含VoLTE/ VoWIFI/ VoNR语音、视频、会议,支持CS和IMS通话之间的域选控制和切换,支持紧急通话。支持主流modem芯片平台。

其主要的结构及流程如下图所示:

图 1 蜂窝通话模块架构图

蜂窝通话模块由蜂窝通话管理层、蜂窝通话业务处理层、蜂窝通话连接层三大部分组成,其中:

  1. 蜂窝通话管理层(CellularCallService):由CellularCallRegister(提供通话信息变化订阅功能)、CellularCallProxy(提供蜂窝通话对外接口实现的代理)、CellularCallHandler(处理RIL Adapter上报的消息)组成。
  2. 蜂窝通话业务层(CellularCallStub):由CSControl(处理CS通话)&IMSControl(处理IMS通话)、CellularCallConfig(配置业务)、CellularCallSupplement(补充业务)组成。
  3. 蜂窝通话连接层(Connection):由BaseConnection(会话连接)、ConfigRequest(配置业务命令请求)、SupplementRequest(补充业务命令请求)组成。

目录

/base/telephony/cellular_call     # 蜂窝通话子组件
├─ figures                        # Readme资源文件
├─ interfaces                     # 接口目录
│  └─ innerkits                   # IMS通话接口定义
├─ sa_profile                     # sa文件
├─ services                       # 服务内部代码
│  ├─ common                      # 工具仓
│  ├─ connection                  # 连接层
│  ├─ control                     # 控制业务层
│  ├─ ims_service_interaction     # IMS通话服务交互层
│  └─ manager                     # 管理层
├─ test                           # 测试相关代码
│  └─ unittest                    # 单元测试相关代码
└─  vendor                        # IMS通话服务实现层示例代码
   └─ ims                         # IMS通话业务逻辑相关代码

约束

  • 开发语言:C++。
  • 软件约束:需要与以下服务配合使用:Telephony核心服务(core_service)、通话管理(call_manager)。
  • 硬件约束:需要搭载的设备支持以下硬件:扬声器或听筒、麦克风,可以进行独立蜂窝通信的Modem以及SIM卡。

说明: 蜂窝通话不对外暴露接口,由通话管理直接调用。

相关仓

电话服务子系统

telephony_cellular_call

telephony_core_service

telephony_call_manager

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简介

Implementing basic call services over carrier networks | 负责运营商网络的基础通话实现 展开 收起
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