WO2015103779A1

WO2015103779A1 - Method and device for bearing circuit switched domain voice service

Info

Publication number: WO2015103779A1
Application number: PCT/CN2014/070487
Authority: WO
Inventors: 陈燕燕; 谭斌
Original assignee: 华为技术有限公司
Priority date: 2014-01-10
Filing date: 2014-01-10
Publication date: 2015-07-16
Also published as: CN105474699B; CN105474699A

Abstract

A method and device for bearing a circuit switched domain voice service. A first network device receives, through a first interface, at least one first voice frame sent by a second network device, wherein the first network device is a network device of a first mode, and the second network device is a network device of a second mode or a network device compatible with the first mode and the second mode (201); and the first network device sends the at least one first voice frame to a user equipment (UE) through a second interface (202).

Description

一种承载电路域语音业务的方法及装置技术领域 Method and device for carrying circuit domain voice service

本发明涉及通信技术领域，尤其涉及一种承载电路域语音业务的方法及装置。 The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for carrying a voice service in a circuit domain.

背景技术 Background technique

长期演进（ Long Term Evolution, LTE )作为下一代移动通信***重要的技术，也是 3G的演进技术，具有高带宽、高移动性、低时延的优点。在现有技术中， LTE网络不支持电路交换域（Circuit Switch Domain, CS域）业务，即 LTE网络不支持语音业务。全球移动通信***（Global System of Mobile communication , GSM ) 网络和通用移动通信*** ( Universal Mobile Telecommunication System, UMTS ) 网络可以支持语音业务。当釆用 LTE网络进行语音业务时，通常釆用两种方案执行：方案一，在 LTE网络的核心网部署 IP多媒体子***（ IP Multimedia Subsystem, IMS ), 然后釆用互联网协议 ( Internet Protocol, IP )传输语音, 即 IP协议传输语音 ( Voice over Internet Protocol, VoIP ) 实现语音业务；方案二，当用户驻留 LTE网络时，需要将语音业务从 LTE网络转回到 GSM或者 UMTS网络中，以建立语音业务完成语音通话。 As an important technology for next-generation mobile communication systems, Long Term Evolution (LTE) is also an evolution technology of 3G, which has the advantages of high bandwidth, high mobility, and low latency. In the prior art, the LTE network does not support the circuit switching domain (CS domain) service, that is, the LTE network does not support voice services. The Global System of Mobile communication (GSM) network and the Universal Mobile Telecommunication System (UMTS) network can support voice services. When using LTE networks for voice services, two schemes are usually used: Solution 1, deploy IP Multimedia Subsystem (IMS) on the core network of the LTE network, and then use Internet Protocol (IP). Voice over Internet Protocol (VoIP) is used to implement voice services. Solution 2: When a user camps on an LTE network, the voice service needs to be transferred from the LTE network to the GSM or UMTS network to establish The voice service completes the voice call.

然而，通过在核心网部署 IMS, 使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS设备导致成本较高；另外，将 LTE网络转回到 GSM或者 UMTS网络时，用户在 LTE下的语音业务都需要被中断，导致语音业务建立的时延。 However, by deploying IMS on the core network, LTE support for voice services needs to rely on IMS deployment. The purchase and deployment of IMS devices leads to higher costs. In addition, when LTE networks are transferred back to GSM or UMTS networks, users' voice services under LTE All need to be interrupted, resulting in the delay of voice service establishment.

发明内容本发明的实施例提供一种承载电路域语音业务的方法及装置，可以不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断语音业务，减少时延。 Summary of the invention The embodiments of the present invention provide a method and an apparatus for carrying a voice service in a circuit domain, which can complete voice services without relying on IMS deployment, thereby reducing costs, and not interrupting voice services and reducing delay in the LTE network.

第一方面，本发明提供一种承载电路域语音业务的方法，包括：第一网络设备通过第一接口接收第二网络设备发送的至少一个第一语音帧，其中，所述第一网络设备为第一制式的网络设备，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备；所述第 ―网络设备通过第二接口将所述至少一个第一语音帧发送给用户设备 UE。 In a first aspect, the present invention provides a method for carrying a voice service in a circuit domain, including: receiving, by a first network device, at least one first voice frame sent by a second network device, where the first network device is a first type of network device, the second network device is a second type of network device or a network device compatible with the first system and the second system; the first network device passes through the second interface The at least one first voice frame is sent to the user equipment UE.

在第一种可能的实施例中，结合第一方面， In a first possible embodiment, in combination with the first aspect,

所述第一制式为长期演进 LTE网络或者无线局域网 WLAN; The first system is a long term evolution LTE network or a wireless local area network WLAN;

所述第二制式为通用移动通信*** UMTS 网络或者全球移动通信*** GSM网络； The second system is a universal mobile communication system UMTS network or a global mobile communication system GSM network;

所述第一网络设备为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; The first network device is the base station eNB of the LTE or the wireless access point AP of the WLAN;

所述第二网络设备为所述 UMTS 的无线网络控制器 RNC, 或者为所述 GSM的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating a plurality of standard resources;

所述第一接口为所述第一网络设备与所述第二网络设备之间连接的接口；所述第二接口为所述第一网络设备与所述 UE之间的第一制式空口。 The first interface is an interface connected between the first network device and the second network device; the second interface is a first standard air interface between the first network device and the UE.

在第二种可能的实施例中，结合第一方面或者第一方面中的第一种可能的实施例， In a second possible embodiment, in combination with the first aspect or the first possible embodiment of the first aspect,

所述至少一个第一语音帧为所述第二网络设备对接收的至少一个第二语音帧添加时间信息和发送序列号而获得的语音帧，其中，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号，所述至少一个第二语音帧为所述第二网络设备接收电路域的移动交换中心 MSC发送的语音帧。 The at least one first voice frame is a voice frame obtained by adding, by the second network device, time information and a sequence number to the received at least one second voice frame, where the time information is the second network device. Receiving the time of the at least one second voice frame, where the sending sequence number is a sequence number obtained by the second network device according to a sending sequence of the at least one first voice frame, where the at least one second voice frame is a voice sent by the mobile switching center MSC of the second network device receiving circuit domain frame.

第二方面，本发明提供另一种承载电路域语音业务的方法，包括：第一网络设备通过第二接口接收用户设备 UE发送的至少一个第三语音帧，其中，所述第一网络设备为第一制式的网络设备； In a second aspect, the present invention provides another method for carrying a voice service in a circuit domain, where: the first network device receives, by using a second interface, at least one third voice frame sent by the user equipment UE, where the first network device is First-standard network equipment;

所述第 ―网络设备通过第一接口将所述至少一个第三语音帧发送给所述第二网络设备，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备。 Transmitting, by the first network device, the at least one third voice frame to the second network device by using a first interface, where the second network device is a network device of a second standard or is compatible with the first system and The second type of network device.

在第一种可能的实施例中，结合第二方面， In a first possible embodiment, in combination with the second aspect,

所述第二制式为通用移动通信*** UMTS 网络或者全球移动通信*** The second system is a universal mobile communication system UMTS network or a global mobile communication system

GSM网络； GSM network;

所述第二网络设备为所述 UMTS 的无线网络控制器 RNC , 或者为所述 GSM的基站控制器 BSC , 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating a plurality of standard resources;

在第二种可能的实施例中，结合第二方面中的第一种可能的实施例，所述至少一个第三语音帧为所述 UE对至少一个第四语音帧添加时间信息和发送序列号而获得的语音帧，所述至少一个第四语音帧为所述 UE的接入层 AS接收所述 UE的非接入层 NAS发送的语音帧，所述时间信息为所述 UE 接收到所述至少一个第四语音帧的时间，所述发送序列号为所述 UE根据所述至少一个第三语音帧的发送先后顺序获取的序列号。 In a second possible embodiment, in combination with the first possible embodiment of the second aspect, the at least one third voice frame is that the UE adds time information and a transmission sequence number to the at least one fourth voice frame. And the obtained voice frame, the at least one fourth voice frame is a voice frame sent by the access layer AS of the UE to the non-access stratum NAS of the UE, where the time information is that the UE receives the a time of at least one fourth speech frame, the transmission sequence number being the UE according to the A serial number obtained by sequentially transmitting at least one third speech frame.

第三方面，本发明提供又一种承载电路域语音业务的方法，包括：第二网络设备接收移动交换中心 MSC发送的至少一个第二语音帧，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备； In a third aspect, the present invention provides a method for carrying a voice service in a circuit domain, including: receiving, by a second network device, at least one second voice frame sent by a mobile switching center MSC, where the second network device is a second system Network device or network device compatible with the first system and the second system;

所述第二网络设备将所述至少一个第二语音帧进行处理 , 获得至少一个第一语音帧； The second network device processes the at least one second voice frame to obtain at least one first voice frame;

所述第二网络设备将所述至少一个第一语音帧通过第一接口发送给第 ― 网络设备，所述第一网络设备为第一制式的网络设备。 The second network device sends the at least one first voice frame to the first network device by using the first interface, where the first network device is a network device of the first standard.

在第一种可能的实施例中，结合第三方面， In a first possible embodiment, in combination with the third aspect,

所述第一接口为所述第一网络设备与所述第二网络设备之间连接的接口。 The first interface is an interface that is connected between the first network device and the second network device.

在第二种可能的实施例中，结合第三方面或者第三方面中的第一种可能的实施例， In a second possible embodiment, in combination with the third aspect or the first possible embodiment of the third aspect,

所述第二网络设备根据从电路域的移动交换中心 MSC接收到所述至少一个第二语音帧的时间，对所述至少一个第二语音帧设置时间信息，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间；所述第二网络设备将发送序列号和所述时间信息添加在对应的第二语音帧上，获得所述至少一个第一语音帧，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号。 And the second network device sets time information to the at least one second voice frame according to a time when the at least one second voice frame is received from the mobile switching center MSC of the circuit domain, where the time information is the second a time when the network device receives the at least one second voice frame; And the second network device adds the sending sequence number and the time information to the corresponding second voice frame, to obtain the at least one first voice frame, where the sending sequence number is that the second network device is according to the A serial number obtained by sequentially transmitting at least one first speech frame.

在第三种可能的实施例中，结合第三方面， In a third possible embodiment, in combination with the third aspect,

所述第二网络设备接收所述第 ―网络设备发送的至少一个第三语音帧，所述至少一个第三语音帧中包括所述至少一个第三语音帧对应的发送序列号以及时间信息； Receiving, by the second network device, the at least one third voice frame that is sent by the first network device, where the at least one third voice frame includes a sending sequence number and time information corresponding to the at least one third voice frame;

所述第二网络设备通过所述至少一个第三语音帧对应的发送序列号以及时间信息对所述至少一个第三语音帧进行去抖动，获得至少一个第五语音帧；所述第二网络设备将所述至少一个第五语音帧发送给所述 MSC。 The second network device debounces the at least one third voice frame by using a sending sequence number and time information corresponding to the at least one third voice frame to obtain at least one fifth voice frame; the second network device Transmitting the at least one fifth voice frame to the MSC.

第四方面，本发明提供一种承载电路域语音业务的装置，所述装置为第一制式的网络设备，所述装置包括： In a fourth aspect, the present invention provides a device for carrying a voice service in a circuit domain, where the device is a network device of the first system, and the device includes:

接收模块，用于通过第一接口接收第二网络设备发送的至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送模块，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备； a receiving module, configured to receive, by using the first interface, at least one first voice frame sent by the second network device, and provide the at least one first voice frame to the sending module, where the second network device is a second system Network device or network device compatible with the first system and the second system;

所述发送模块，用于通过第二接口将所述至少一个第一语音帧发送给用户设备 UE。 The sending module is configured to send the at least one first voice frame to the user equipment UE by using the second interface.

在第一种可能的实施例中，结合第四方面， In a first possible embodiment, in combination with the fourth aspect,

所述装置为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; 所述第二网络设备为所述 UMTS 的无线网络控制器 RNC, 或者为所述 GSM的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The device is a base station eNB of the LTE or a wireless access point AP of the WLAN; the second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or Unified wireless control for coordinating multiple standard resources Controller SRC;

所述第一接口为所述装置与所述第二网络设备之间连接的接口；所述第二接口为所述装置与所述 UE之间的第一制式空口。 The first interface is an interface that is connected between the device and the second network device; the second interface is a first standard air interface between the device and the UE.

在第二种可能的实施例中，结合第四方面或者第四方面中的第一种可能的实施例， In a second possible embodiment, in combination with the fourth aspect or the first possible embodiment of the fourth aspect,

所述至少一个第一语音帧为所述第二网络设备对接收的至少一个第二语音帧添加时间信息和发送序列号而获得的语音帧，其中，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号，所述至少一个第二语音帧为所述第二网络设备接收电路域的移动交换中心 MSC发送的语音帧。 The at least one first voice frame is a voice frame obtained by adding, by the second network device, time information and a sequence number to the received at least one second voice frame, where the time information is the second network device. The time at which the at least one second voice frame is received, the sending sequence number is a sequence number obtained by the second network device according to a sending sequence of the at least one first voice frame, the at least one second voice The frame is a voice frame transmitted by the mobile switching center MSC of the second network device receiving circuit domain.

第五方面，本发明提供另一种承载电路域语音业务的装置，所述装置为第一制式的网络设备，所述装置包括： In a fifth aspect, the present invention provides another device for carrying a voice service in a circuit domain, where the device is a network device of a first standard, and the device includes:

接收模块，用于通过第二接口接收用户设备 UE发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给发送模块； a receiving module, configured to receive, by using the second interface, at least one third voice frame sent by the user equipment UE, and provide the at least one third voice frame to the sending module;

所述发送模块，用于通过第一接口将所述至少一个第三语音帧发送给所述第二网络设备，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备。 The sending module is configured to send the at least one third voice frame to the second network device by using a first interface, where the second network device is a second-standard network device or is compatible with the first A system and a network device of the second system.

在第一种可能的实施例中，结合第五方面， In a first possible embodiment, in combination with the fifth aspect,

在第二种可能的实施例中，结合第五方面或者第五方面中的第一种可能的实施例， In a second possible embodiment, in combination with the fifth aspect or the first possible embodiment of the fifth aspect,

所述至少一个第三语音帧为所述 UE对至少一个第四语音帧添加时间信息和发送序列号而获得的语音帧，所述至少一个第四语音帧为所述 UE的接入层 AS接收所述 UE的非接入层 NAS发送的语音帧，所述时间信息为所述 UE 接收到所述至少一个第四语音帧的时间，所述发送序列号为所述 UE根据所述至少一个第三语音帧的发送先后顺序获取的序列号。 The at least one third voice frame is a voice frame obtained by adding, by the UE, time information and a sequence number to the at least one fourth voice frame, where the at least one fourth voice frame is received by the access layer AS of the UE. a voice frame sent by the non-access stratum NAS of the UE, where the time information is a time when the UE receives the at least one fourth voice frame, and the sending sequence number is that the UE is according to the at least one The sequence number obtained by sending the three voice frames in sequence.

第六方面，本发明提供又一种承载电路域语音业务的装置，所述装置为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备，所述装置包括： In a sixth aspect, the present invention provides a device for carrying a voice service in a circuit domain, where the device is a second-standard network device or a network device compatible with the first system and the second system, where the device includes :

接收模块，用于接收移动交换中心 MSC发送的至少一个第二语音帧，并将所述至少一个第二语音帧提供给处理模块； a receiving module, configured to receive at least one second voice frame sent by the mobile switching center MSC, and provide the at least one second voice frame to the processing module;

所述处理模块，用于将所述至少一个第二语音帧进行处理，获得至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送模块； The processing module is configured to process the at least one second voice frame to obtain at least one first voice frame, and provide the at least one first voice frame to a sending module;

所述发送模块，用于将所述至少一个第一语音帧通过第一接口发送给第一网络设备，其中，所述第一网络设备为第一制式的网络设备。 The sending module is configured to send the at least one first voice frame to the first network device by using the first interface, where the first network device is a network device of the first standard.

在第一种可能的实施例中，结合第六方面， In a first possible embodiment, in combination with the sixth aspect,

所述第一网络设备为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; 所述装置为所述 UMTS的无线网络控制器 RNC, 或者为所述 GSM的基站控制器 BSC,或者为负责对多个制式资源进行协调的统一无线控制器 SRC; 所述第一接口为所述第 ―网络设备与所述装置之间连接的接口。 The first network device is the base station eNB of the LTE or the wireless access point AP of the WLAN; The device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating a plurality of standard resources; the first interface is the An interface between the first network device and the device.

在第二种可能的实施例中，结合第六方面或者第六方面中的第一种可能的实施例， In a second possible embodiment, in combination with the sixth aspect or the first possible embodiment of the sixth aspect,

设置单元，用于根据从电路域的移动交换中心 MSC接收到所述至少一个第二语音帧的时间，对所述至少一个第二语音帧设置时间信息，并将所述时间信息提供给获得单元，所述时间信息为所述装置接收到所述至少一个第二语音帧的时间； a setting unit, configured to set time information for the at least one second voice frame according to a time when the at least one second voice frame is received from the mobile switching center MSC of the circuit domain, and provide the time information to the obtaining unit The time information is a time when the apparatus receives the at least one second voice frame;

所述获得单元，用于将发送序列号和所述时间信息添加在对应的第二语音帧上，获得所述至少一个第一语音帧，所述发送序列号为所述装置根据所述至少一个第一语音帧的发送先后顺序获取的序列号。 The obtaining unit is configured to add a sending sequence number and the time information to a corresponding second voice frame, to obtain the at least one first voice frame, where the sending sequence number is that the device is according to the at least one The sequence number obtained by the first transmission of the first speech frame.

在第三种可能的实施例中，结合第六方面， In a third possible embodiment, in combination with the sixth aspect,

所述接收模块，还用于接收所述第一网络设备发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给所述处理模块中的所述去抖动单元 , 所述至少一个第三语音帧中包括所述至少一个第三语音帧对应的发送序列号以及时间信息； The receiving module is further configured to receive at least one third voice frame sent by the first network device, and provide the at least one third voice frame to the debounce unit in the processing module, where Transmitting a sequence number and time information corresponding to the at least one third voice frame in the at least one third voice frame;

所述去抖动单元，用于通过所述至少一个第三语音帧对应的发送序列号以及时间信息对所述至少一个第三语音帧进行去抖动，获得至少一个第五语音帧，并将所述至少一个第五语音帧提供给所述发送模块；所述发送模块，还用于将所述至少一个第五语音帧发送给所述 MSC。第七方面，本发明提供还一种承载电路域语音业务的装置，所述装置为第一制式的网络设备，所述装置包括： The de-jittering unit is configured to perform de-jittering on the at least one third voice frame by using a sending sequence number and time information corresponding to the at least one third voice frame, to obtain at least one fifth voice frame, and The at least one fifth voice frame is provided to the sending module, and the sending module is further configured to send the at least one fifth voice frame to the MSC. In a seventh aspect, the present invention provides a device for carrying a voice service in a circuit domain, where the device is a network device of a first standard, and the device includes:

存储器，用于存储包括程序指令的信息； a memory for storing information including program instructions;

接收器，用于通过第一接口接收第二网络设备发送的至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送器，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备； a receiver, configured to receive, by using the first interface, at least one first voice sent by the second network device a frame, and the at least one first voice frame is provided to the transmitter, where the second network device is a second-standard network device or a network device compatible with the first system and the second system;

所述发送器，用于通过第二接口将所述至少一个第一语音帧发送给用户设备 UE。 The transmitter is configured to send the at least one first voice frame to the user equipment UE by using a second interface.

在第一种可能的实施例中，结合第七方面， In a first possible embodiment, in combination with the seventh aspect,

所述装置为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; 所述第二网络设备为所述 UMTS 的无线网络控制器 RNC, 或者为所述 GSM的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The device is a base station eNB of the LTE or a wireless access point AP of the WLAN; the second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or A unified wireless controller SRC responsible for coordinating multiple standard resources;

在第二种可能的实施例中，结合第七方面或者第七方面中的第一种可能的实施例， In a second possible embodiment, in combination with the seventh aspect or the first possible embodiment of the seventh aspect,

第八方面，本发明提供再一种承载电路域语音业务的装置，所述装置为第一制式的网络设备，所述装置包括：存储器，用于存储包括程序指令的信息； In an eighth aspect, the present invention provides a device for carrying a voice service in a circuit domain, where the device is a first-standard network device, and the device includes: a memory for storing information including program instructions;

接收器，用于通过第二接口接收用户设备 UE发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给发送器； a receiver, configured to receive, by using the second interface, at least one third voice frame sent by the user equipment UE, and provide the at least one third voice frame to the transmitter;

所述发送器，用于通过第一接口将所述至少一个第三语音帧发送给所述第二网络设备，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备。 The transmitter is configured to send the at least one third voice frame to the second network device by using a first interface, where the second network device is a second-standard network device or is compatible with the first A system and a network device of the second system.

在第一种可能的实施例中，结合第八方面， In a first possible embodiment, in combination with the eighth aspect,

所述装置为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; 所述第二网络设备为所述 UMTS 的无线网络控制器 RNC , 或者为所述 GSM的基站控制器 BSC , 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The device is the LTE base station eNB or the WLAN wireless access point AP; the second network device is the UMTS radio network controller RNC, or the GSM base station controller BSC, or A unified wireless controller SRC responsible for coordinating multiple standard resources;

在第二种可能的实施例中，结合第八方面或者第八方面中的第一种可能的实施例， In a second possible embodiment, in combination with the eighth aspect or the first possible embodiment of the eighth aspect,

第九方面，本发明提供另外一种承载电路域语音业务的装置，所述装置为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备，所述装置包括： According to a ninth aspect, the present invention provides another device for carrying a voice service in a circuit domain, where the device is a network device of a second standard or a network device compatible with the first system and the second system. The device includes:

接收器，用于接收移动交换中心 MSC发送的至少一个第二语音帧，并将所述至少一个第二语音帧提供给处理器； a receiver, configured to receive at least one second voice frame sent by the mobile switching center MSC, and provide the at least one second voice frame to the processor;

所述处理器，用于将所述至少一个第二语音帧进行处理，获得至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送器； The processor, configured to process the at least one second voice frame, obtain at least one first voice frame, and provide the at least one first voice frame to a transmitter;

所述发送器，用于将所述至少一个第一语音帧通过第一接口发送给第 ― 网络设备，其中，所述第一网络设备为第一制式的网络设备。 The transmitter is configured to send the at least one first voice frame to the first network device by using the first interface, where the first network device is a network device of the first standard.

在第一种可能的实施例中，结合第九方面， In a first possible embodiment, in combination with the ninth aspect,

所述装置为所述 UMTS的无线网络控制器 RNC, 或者为所述 GSM的基站控制器 BSC,或者为负责对多个制式资源进行协调的统一无线控制器 SRC; 所述第一接口为所述第 ―网络设备与所述装置之间连接的接口。 The device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating a plurality of standard resources; the first interface is the An interface between the first network device and the device.

在第二种可能的实施例中，结合第九方面或者第九方面中的第一种可能的实施例， In a second possible embodiment, in combination with the ninth aspect or the first possible embodiment of the ninth aspect,

所述处理器，具体用于根据从电路域的移动交换中心 MSC接收到所述至少一个第二语音帧的时间，对所述至少一个第二语音帧设置时间信息，将发送序列号和所述时间信息添加在对应的第二语音帧上，获得所述至少一个第一语音帧，所述发送序列号为所述第二网络设备根据所述至少一个每个第 ― 语音帧的发送先后顺序获取的序列号，所述时间信息为所述装置接收到所述至少一个第二语音帧的时间。在第三种可能的实施例中，结合第九方面， The processor is configured to: set time information to the at least one second voice frame according to a time when the at least one second voice frame is received from the mobile switching center MSC of the circuit domain, and send the sequence number and the The time information is added to the corresponding second voice frame to obtain the at least one first voice frame, where the sending sequence number is obtained by the second network device according to the sending sequence of the at least one first voice frame. The serial number, the time information is a time when the apparatus receives the at least one second speech frame. In a third possible embodiment, in combination with the ninth aspect,

所述接收器，还用于接收所述第 ―网络设备发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给所述处理器，所述至少一个第三语音帧中包括所述至少一个第三语音帧对应的发送序列号以及时间信息； The receiver is further configured to receive at least one third voice frame sent by the first network device, and provide the at least one third voice frame to the processor, where the at least one third voice frame is Include a transmission sequence number and time information corresponding to the at least one third voice frame;

所述处理器，还用于通过所述至少一个第三语音帧对应的发送序列号以及时间信息对所述至少一个第三语音帧进行去抖动，获得至少一个第五语音帧，并将所述至少一个第五语音帧提供给所述发送器； The processor is further configured to perform debounce on the at least one third voice frame by using a sending sequence number and time information corresponding to the at least one third voice frame, to obtain at least one fifth voice frame, and At least one fifth speech frame is provided to the transmitter;

所述发送器，还用于将所述至少一个第五语音帧发送给所述 MSC。 The transmitter is further configured to send the at least one fifth voice frame to the MSC.

本发明实施例提供了一种承载电路域语音业务的方法及装置，通过第 ― 网络设备通过第一接口接收第二网络设备发送的至少一个第一语音帧，其中，第一网络设备为第一制式的网络设备，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备；第一网络设备通过第二接口将至少一个第一语音帧发送给用户设备 UE。与现有技术中通过在核心网部署 IMS, 使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS设备导致成本较高 , 以及将 LTE网络转回到 GSM或者 UMTS网络时 , 用户在 LTE下的语音业务都需要被中断，导致语音业务建立的时延相比，本发明实施例可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且不中断 UE在 LTE 网络中正在运行的数据业务，减少语音业务建立的时延。 The embodiment of the present invention provides a method and a device for carrying a voice service in a circuit domain, where the first network device receives the at least one first voice frame sent by the second network device by using the first network device, where the first network device is the first The network device of the second network device is a network device of the second standard or a network device compatible with the first system and the second system; the first network device sends the at least one first voice frame to the user equipment UE through the second interface . In the prior art, by deploying IMS on the core network, the LTE support voice service needs to rely on the IMS deployment, and the purchase and deployment of the IMS device leads to high cost, and when the LTE network is transferred back to the GSM or UMTS network, the user is under LTE. The voice service needs to be interrupted, and the voice service is established in the LTE network. The delay in establishing a voice service.

附图说明 DRAWINGS

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

图 1为本发明提供的一种承载电路域语音业务的***的结构示意图；图 2为本发明提供的一种承载电路域语音业务的方法的流程图；图 3 为本发明提供的承载电路域语音业务的方法中接收语音帧的一种结构示意图； 1 is a schematic structural diagram of a system for carrying a circuit domain voice service according to the present invention; 2 is a flowchart of a method for carrying a voice service in a circuit domain according to the present invention; FIG. 3 is a schematic structural diagram of receiving a voice frame in a method for carrying a voice service in a circuit domain according to the present invention;

图 4为本发明提供的承载电路域语音业务的方法中接收语音帧的另一种结构示意图； 4 is another schematic structural diagram of receiving a voice frame in a method for carrying a circuit domain voice service according to the present invention;

图 5为本发明提供的另一种承载电路域语音业务的方法的流程图；图 6为本发明提供的又一种承载电路域语音业务的方法的流程图；图 Ί为本发明提供的再一种承载电路域语音业务的方法的流程图；图 8为本发明提供的承载电路域语音业务的方法中下行方向实现承载语音业务中各个语音帧的传输方向的流程图； FIG. 5 is a flowchart of another method for carrying a voice service in a circuit domain according to the present invention; FIG. 6 is a flowchart of still another method for carrying a voice service in a circuit domain according to the present invention; A flowchart of a method for carrying a voice service in a circuit domain; FIG. 8 is a flowchart of a method for implementing a voice service in a bearer voice service in a downlink direction in a method for carrying a voice service in a circuit domain according to the present invention;

图 9为本发明提供的还一种承载电路域语音业务的方法的流程图；图 10为本发明提供的承载电路域语音业务的方法中上行方向实现承载语音业务中各个语音帧的传输方向的流程图； FIG. 9 is a flowchart of a method for carrying a voice service in a circuit domain according to the present invention; FIG. 10 is a schematic diagram of a method for transmitting voice services in a bearer voice service in an uplink direction in a method for carrying a voice service in a circuit domain according to the present invention; Flow chart

图 11为本发明提供的一种承载电路域语音业务的装置的结构示意图；图 12为本发明提供的另一种承载电路域语音业务的装置的结构示意图；图 13为本发明提供的又一种承载电路域语音业务的装置的结构示意图；图 14为本发明提供的再一种承载电路域语音业务的装置的结构示意图；图 15为本发明提供的承载电路域语音业务的方法中第一网络设备的一种硬件结构图； FIG. 11 is a schematic structural diagram of an apparatus for carrying a voice service in a circuit domain according to the present invention; FIG. 12 is a schematic structural diagram of another apparatus for carrying a voice service in a circuit domain according to the present invention; FIG. 14 is a schematic structural diagram of another apparatus for carrying a voice service in a circuit domain according to the present invention; FIG. 15 is a schematic diagram of a method for carrying a voice service in a circuit domain according to the present invention; a hardware structure diagram of a network device;

图 16为本发明提供的承载电路域语音业务的方法中第一网络设备的另一种硬件结构图； 16 is another hardware structure diagram of a first network device in a method for carrying a circuit domain voice service according to the present invention;

图 17为本发明提供的承载电路域语音业务的方法中第二网络设备的一种硬件结构图。具体实施方式下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 FIG. 17 is a hardware structural diagram of a second network device in a method for carrying a circuit domain voice service according to the present invention. detailed description The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

如图 1 所示，本发明实施例提供一种承载电路域语音业务的方法适用于一种承载电路域语音业务的***，该***包括第一网络设备 101 , 第二网络设备 102, 用户设备 ( User Equipment, UE ) 103。 As shown in FIG. 1 , an embodiment of the present invention provides a method for carrying a voice service in a circuit domain, which is applicable to a system for carrying a voice service in a circuit domain, where the system includes a first network device 101, a second network device 102, and a user equipment ( User Equipment, UE ) 103.

其中，第一网络设备 101 , 用于通过第一接口接收第二网络设备 102发送的至少一个第一语音帧；通过第二接口将至少一个第一语音帧发送给 UE103 ; 通过第二接口接收 UE103发送的至少一个第三语音帧；通过第一接口将至少一个第三语音帧发送给第二网络设备 102。 The first network device 101 is configured to receive, by using the first interface, at least one first voice frame sent by the second network device 102, send the at least one first voice frame to the UE 103 by using the second interface, and receive the UE 103 by using the second interface. Transmitting at least one third voice frame; transmitting at least one third voice frame to the second network device 102 through the first interface.

其中，第一网络设备 101可以为第一制式的网络设备，第二网络设备 102 可以为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。第一制式可以为长期演进 LTE 网络或者无线局域网（Wireless Local Area Networks, WLAN); 第二制式可以为通用移动通信*** UMTS网络或者全球移动通信*** GSM网络。 The first network device 101 may be a first-standard network device, and the second network device 102 may be a second-standard network device or a network device compatible with the first system and the second system. The first standard may be a long-term evolution LTE network or a Wireless Local Area Networks (WLAN); the second system may be a universal mobile communication system UMTS network or a global mobile communication system GSM network.

例如，第一网络设备为 LTE的演进型基站（evolved Node B, eNB )或者 WLAN的无线访问接入点（Access Point, AP ); 第二网络设备为 UMTS的无线网络控制器（ Radio Network Controller, RNC ), 或者为 GSM的基站控制器 (Base Station Controller, BSC), 或者为负责对多个制式资源进行协调的统一无线控制器（ Single Radio Controller, SRC )。 For example, the first network device is an evolved Node B (eNB) of LTE or a wireless access point (AP) of the WLAN; the second network device is a radio network controller of the UMTS (Radio Network Controller, RNC), either a GSM Base Station Controller (BSC) or a Single Radio Controller (SRC) responsible for coordinating multiple standards resources.

其中，第一接口为第一网络设备 101与第二网络设备 102之间连接的接口；第二接口为第一网络设备 101与 UE103之间的第一制式空口。 The first interface is an interface connected between the first network device 101 and the second network device 102; the second interface is a first standard air interface between the first network device 101 and the UE 103.

第二网络设备 102, 用于接收移动交换中心（Mobile Switching Center, MSC )发送的至少一个第二语音帧；将至少一个第二语音帧进行处理，获得至少一个第一语音帧；将至少一个第一语音帧通过第一接口发送给第一网络设备 101 ; 接收第一网络设备 101发送的至少一个第三语音帧，至少一个第三语音帧中包括至少一个第三语音帧对应的发送序列号以及时间信息；通过至少一个第三语音帧对应的发送序列号以及时间信息对至少一个第三语音帧进行去抖动，获得至少一个第五语音帧；将至少一个第五语音帧发送给 MSC。 a second network device 102, configured to receive at least one second voice frame sent by a Mobile Switching Center (MSC); process at least one second voice frame to obtain At least one first voice frame; transmitting the at least one first voice frame to the first network device 101 by using the first interface; receiving at least one third voice frame sent by the first network device 101, where the at least one third voice frame includes at least one a transmission sequence number corresponding to a third voice frame and time information; debounce the at least one third voice frame by using a transmission sequence number and time information corresponding to the at least one third voice frame to obtain at least one fifth voice frame; A fifth voice frame is sent to the MSC.

其中，至少一个第三语音帧对应的时间信息为 UE103接收到至少一个第四语音帧的时间，至少一个第三语音帧对应的发送序列号为 UE103根据至少一个第三语音帧的发送先后顺序获取的序列号。 The time information corresponding to the at least one third voice frame is the time when the UE 103 receives the at least one fourth voice frame, and the sending sequence number corresponding to the at least one third voice frame is obtained by the UE 103 according to the sending sequence of the at least one third voice frame. Serial number.

其中，去抖动的处理方式可以参见图 2所示实施例中的相关描述。 For the debounce processing, refer to the related description in the embodiment shown in FIG. 2.

UE103 ,用于通过第二接口接收第一网络设备 101发送的至少一个第一语音帧；通过第二接口向第一网络设备 101发送至少一个第三语音帧。 The UE 103 is configured to receive, by using the second interface, at least one first voice frame sent by the first network device 101, and send, by using the second interface, the at least one third voice frame to the first network device 101.

其中，本发明中的第一语音帧、第二语音帧、第三语音帧、第四语音帧以及第五语音帧均可以为自适应多速率（ Adaptive Multi Rate, AMR )语音帧。 The first speech frame, the second speech frame, the third speech frame, the fourth speech frame, and the fifth speech frame in the present invention may all be adaptive multi-rate (AMR) speech frames.

进一步的，第二网络设备 102, 还用于根据从电路域的 MSC接收到至少一个第二语音帧的时间，对至少一个第二语音帧设置时间信息；将发送序列号和时间信息添加在对应的第二语音帧上，获得至少一个第一语音帧。 Further, the second network device 102 is further configured to: set time information to the at least one second voice frame according to the time when the at least one second voice frame is received from the MSC of the circuit domain; add the sending sequence number and time information to the corresponding At least one first speech frame is obtained on the second speech frame.

本发明实施例提供了一种承载电路域语音业务的***，可以不依靠 IMS 部署完成语音业务，从而减少成本，并且不中断在 LTE网络中正在运行的数据业务，减少语音业务建立的时延。如图 2所示，本发明实施例提供一种承载电路域语音业务的方法，该方法用于下行方向，其具体如下： The embodiment of the invention provides a system for carrying a voice service in a circuit domain, which can complete the voice service without relying on the IMS, thereby reducing the cost, and not interrupting the data service running in the LTE network, and reducing the delay of the voice service establishment. As shown in FIG. 2, an embodiment of the present invention provides a method for carrying a voice service in a circuit domain, where the method is used in a downlink direction, and the details are as follows:

步骤 201 ,第一网络设备通过第一接口接收第二网络设备发送的至少一个第一语音帧，其中，第一网络设备为第一制式的网络设备，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。例如，第一网络设备可以为 LTE网络的 eNB或者 WLAN中的 AP。第二网络设备可以为负责对多个制式资源进行协调的 SRC, 或者第二网络设备为 UMTS的 RNC或者 GSM网络的 BSC。 Step 201: The first network device receives, by using the first interface, the at least one first voice frame that is sent by the second network device, where the first network device is a first-standard network device, and the second network device is a second-standard network device. Or it is a network device compatible with the first system and the second system. For example, the first network device may be an eNB of an LTE network or an AP in a WLAN. The second network device may be an SRC responsible for coordinating a plurality of standard resources, or the second network device is an RNC of UMTS or a BSC of a GSM network.

其中，第一接口为第一网络设备与第二网络设备之间连接的接口。例如，第一接口为 Iu接口。在本实施例中，第一语音帧可以为 AMR语音帧。当然，本实施例不限制语音帧的种类。 The first interface is an interface that is connected between the first network device and the second network device. For example, the first interface is an Iu interface. In this embodiment, the first speech frame may be an AMR speech frame. Of course, this embodiment does not limit the type of voice frame.

至少一个第一语音帧为第二网络设备对接收的至少一个第二语音帧添加时间信息和发送序列号而获得的语音帧，其中，时间信息为第二网络设备接收到至少一个第二语音帧的时间，发送序列号为第二网络设备根据至少一个第一语音帧的发送先后顺序获取的序列号，至少一个第二语音帧为第二网络设备接收电路域的移动交换中心 MSC发送的语音帧。 The at least one first voice frame is a voice frame obtained by adding, by the second network device, time information and a sequence number to the received at least one second voice frame, where the time information is that the second network device receives the at least one second voice frame. The transmission sequence number is a sequence number obtained by the second network device according to a sending sequence of the at least one first voice frame, and the at least one second voice frame is a voice frame sent by the mobile switching center MSC of the second network device receiving the circuit domain. .

步骤 202,第一网络设备通过第二接口将至少一个第一语音帧发送给 UE。其中，第二接口为第一网络设备与 UE之间的第一制式空口。该第一制式空口可以为 LTE空口。 Step 202: The first network device sends the at least one first voice frame to the UE by using the second interface. The second interface is a first standard air interface between the first network device and the UE. The first standard air interface can be an LTE air interface.

在第一网络设备将至少一个第一语音帧发送给 UE之后， UE将至少一个第一语音帧去抖动，获得至少一个第六语音帧，以便进行正常的语音传输。 After the first network device sends the at least one first voice frame to the UE, the UE debounces the at least one first voice frame to obtain at least one sixth voice frame for normal voice transmission.

在本实施例中， UE可以为双模 UE。例如，该双模 UE指同时具有 UMTS 和 LTE协议栈的终端。 In this embodiment, the UE may be a dual mode UE. For example, the dual mode UE refers to a terminal that has both UMTS and LTE protocol stacks.

由于 LTE的空口介质访问控制子层协议（ Media Access Control , MAC ) 调度和第一层（Layer one, L1 ) 重传等因素，可能出现语音帧不能均匀的到达接收端，从而产生时延抖动，导致语音帧的正常顺序在传输的过程中被打乱，也可以称为空口抖动，其中， MAC层负责数据包的调度，确定是否需要发送数据包； L1表示开放式***互联（Open System Interconnect, OSI ) 中的物理层，负责具体的数据传输。因此，为了获得畅通的语音通话，需要对接收的语音帧去抖动，以获得正确顺序的语音帧。进一步需要说明的是，第二网络设备对至少一个第二语音帧添加时间信息和发送序列号的方式包括但不限于以下方式： Due to factors such as LTE media access control (MAC) scheduling and Layer 1 (L1) retransmission, voice frames may not reach the receiving end uniformly, resulting in delay jitter. The normal sequence of voice frames is disrupted during the transmission process. It can also be called air interface jitter. The MAC layer is responsible for the scheduling of data packets and determines whether data packets need to be sent. L1 indicates Open System Interconnect. The physical layer in OSI) is responsible for the specific data transfer. Therefore, in order to obtain a smooth voice call, the received voice frame needs to be debounced to obtain a voice frame in the correct order. It should be further noted that the manner in which the second network device adds time information and sends the sequence number to the at least one second voice frame includes, but is not limited to, the following manners:

第二网络设备可以在接收至少一个第二语音帧之后，通过第二网络设备中的分组数据汇聚协议（Packet Data Convergence Protocol, PDCP )层为每个第二语音帧添加接收到对应第二语音帧的时间（即时间信息），并将每个第二语音帧递交到无线链路控制（Radio Link Control, RLC )层，在 RLC层， RNC 添加对应第二语音帧的发送序列号。将时间信息和发送序列号添加在对应的第二语音帧上，获得至少一个第一语音帧。具体而言，第二网络设备在接收到每个第二语音帧之后，可以将对应第二语音帧的第二网络设备的空口连接帧号的后 5 个比特用来承载时间信息，并将该时间信息放在第二语音帧的 PDCP中，具体的，将该时间信息放在第二语音帧的 PDCP的头结构中。 PDCP 是 UMTS中的一个无线传输协议栈，用于设置语音帧的时间信息。其中，时间信息可以用 CFN表示。另夕卜，发送序列号可以为 RLC的序号。发送序列号可以用 SN表示。 The second network device may add a corresponding second voice frame to each second voice frame by using a Packet Data Convergence Protocol (PDCP) layer in the second network device after receiving the at least one second voice frame. Time (ie, time information), and each second voice frame is delivered to a Radio Link Control (RLC) layer. At the RLC layer, the RNC adds a transmission sequence number corresponding to the second voice frame. The time information and the transmission sequence number are added to the corresponding second speech frame to obtain at least one first speech frame. Specifically, after receiving the second second voice frame, the second network device may use the last 5 bits of the air interface connection frame number of the second network device corresponding to the second voice frame to carry time information, and The time information is placed in the PDCP of the second speech frame. Specifically, the time information is placed in the header structure of the PDCP of the second speech frame. PDCP is a wireless transmission protocol stack in UMTS that is used to set the time information of a voice frame. Among them, the time information can be represented by CFN. In addition, the sending serial number can be the serial number of the RLC. The transmission sequence number can be expressed in SN.

例如，在 MSC通过 Iu接口向 RNC发送了多个连续的 AMR语音帧， RNC 在接收多个连续的 AMR语音帧的时间信息分别为： CFN=0; CFN=1； CFN=9 , CFN=10, CFN=11。 RNC在五个 AMR语音帧的 PDCP头结构中分别设置为： CFN=0, CFN=1 , CFN=9, CFN=10, CFN=11。由于这五个 AMR语音帧是连续的发送到 RLC层，因此 RLC层在为这五个 AMR语音帧添加发送序列号时，分另' J为： SN=0, SN=1 , SN=2, SN=3 , SN=4。 For example, when the MSC sends multiple consecutive AMR voice frames to the RNC through the Iu interface, the time information of the RNC receiving multiple consecutive AMR voice frames is: CFN=0; CFN=1; CFN=9, CFN=10 , CFN=11. The RNC is set in the PDCP header structure of the five AMR speech frames as follows: CFN=0, CFN=1, CFN=9, CFN=10, CFN=11. Since the five AMR speech frames are continuously transmitted to the RLC layer, when the RLC layer adds the transmission sequence number to the five AMR speech frames, the other 'J is: SN=0, SN=1, SN=2, SN=3, SN=4.

需要说明的是， AMR语音帧对应的时间信息和对应的发送序列号可以为 ——对应的关系，即为第一个 AMR语音帧添加 SN=0 , CFN=0；为第二个 AMR 语音帧添加 SN=1 , CFN=1 ; 为第三个 AMR语音帧添加 SN=2, CFN=9; 为第四个 AMR语音帧添加 SN=3 , CFN=10; 为第五个 AMR语音帧添加 SN=4 , CFN=11。进一步需要说明的是， UE对至少一个第一语音帧进行去抖动的方式包括但不限于以下方式： It should be noted that the time information corresponding to the AMR voice frame and the corresponding transmission sequence number may be a corresponding relationship, that is, adding SN=0, CFN=0 for the first AMR voice frame; and being the second AMR voice frame. Add SN=1, CFN=1; add SN=2, CFN=9 for the third AMR speech frame; add SN=3 for the fourth AMR speech frame, CFN=10; add SN for the fifth AMR speech frame =4, CFN=11. It should be further noted that the manner in which the UE debounces the at least one first voice frame includes but is not limited to the following manners:

UE的接入层 (Access Storey, AS )按照每个第一语音帧上携带的发送序列号对接收的所有第一语音帧进行先后顺序的排序，然后再按照时间信息将正确排序后的各个第一语音帧以连续方式或者不连续方式发送给 UE 的非接入层（ Not Access Storey , NAS )。连续方式为时间信息中的时间为连续的，如 CFN=0 , CFN=1 , CFN=2 , CFN=3 , CFN=4; 不连续方式为时间信息中的时间为非连续的，如 CFN=0, CFN=1 , CFN=9, CFN=10, CFN=11。若釆用上述举例说明，则 UE的 AS将正确排序后的各个第一语音帧以不连续方式发送给 UE的 NAS。 The access layer (Access Storey, AS) of the UE sorts all the received first voice frames in sequence according to the transmission sequence number carried in each first voice frame, and then sorts the correctly ordered ones according to the time information. A voice frame is sent to the UE's non-access stratum (Not Access Storey, NAS) in a continuous or discontinuous manner. The continuous mode is that the time in the time information is continuous, such as CFN=0, CFN=1, CFN=2, CFN=3, CFN=4; the discontinuous mode is that the time in the time information is discontinuous, such as CFN= 0, CFN=1, CFN=9, CFN=10, CFN=11. If the above description is used, the AS of the UE sends the correctly sorted first voice frames to the NAS of the UE in a discontinuous manner.

具体而言，当至少一个第一语音帧（五个 AMR语音帧）在 LTE空口传输的过程中没有丟包时，双模 UE按顺序收到第一个 AMR语音帧，第三个 AMR语音帧，第四个 AMR语音帧，第二个 AMR语音帧，第五个 AMR语音帧 , 双模 UE按照这五个 AMR语音帧的 SN对这五个 AMR语音帧重新进行排序，得到第一个 AMR语音帧，第二个 AMR语音帧，第三个 AMR语音帧，第四个 AMR语音帧，第五个 AMR语音帧。由于 AMR语音帧的产生是不连续的，中间可能会存在静默帧（静默帧指在通信的过程中，由于语音之间出现空闲时间而形成的特殊语音帧，静默帧中没有实质的语音内容）。双模 UE 接收到第一个 AMR语音帧，第二个 AMR语音帧，第三个 AMR语音帧，第四个 AMR语音帧 , 第五个 AMR语音帧之后 , 按照这五个 AMR语音帧在第二网络设备发送给第一网络设备的时间信息，来确定双模 UE的 AS以不连续发送的方式将接收到的 AMR语音帧发送到双模 UE的 NAS时每个 AMR语音帧之间的间隔时间。如发送端每隔 20ms均匀的发送一个 AMR语音帧 , 至少一个第一语音帧中的 CFN是针对接收端接收每个 AMR语音帧的连接编号，第一个 AMR语音帧添加时间信息为 CFN=0, 第二个 AMR语音帧添加时间信息为 CFN=1 ; 第三个 AMR语音帧添加时间信息为 CFN=9; 第四个 AMR语音帧添加时间信息为 CFN=10;第五个 AMR语音帧添加时间信息为 CFN=11 , 所以第二个 AMR语音帧与第三个 AMR语音帧之间相差的 8个 CFN,即第二个 AMR语音帧与第三个 AMR语音帧之间的时间差为 160ms。具体可参照图 3所示的第一个 AMR语音帧、第二个 AMR语音帧、第三个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧的发送给 NAS的结构图。 Specifically, when at least one first voice frame (five AMR voice frames) has no packet loss during LTE air interface transmission, the dual mode UE sequentially receives the first AMR voice frame, and the third AMR voice frame. The fourth AMR speech frame, the second AMR speech frame, and the fifth AMR speech frame, the dual-mode UE reorders the five AMR speech frames according to the SNs of the five AMR speech frames to obtain the first AMR. Speech frame, second AMR speech frame, third AMR speech frame, fourth AMR speech frame, fifth AMR speech frame. Since the generation of AMR speech frames is discontinuous, there may be silence frames in the middle (silent frames refer to special speech frames formed during idle communication due to idle time between speeches, and there is no substantial speech content in silent frames) . The dual mode UE receives the first AMR speech frame, the second AMR speech frame, the third AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame, according to the five AMR speech frames. The time information sent by the network device to the first network device to determine the interval between each AMR voice frame when the AS of the dual mode UE sends the received AMR voice frame to the NAS of the dual mode UE in a manner of discontinuous transmission time. For example, the transmitting end uniformly transmits an AMR voice frame every 20 ms, and the CFN in at least one first voice frame is a connection number for receiving the AMR voice frame for the receiving end, and the first AMR voice frame adding time information is CFN=0. , the second AMR voice frame adds time letter The information is CFN=1; the third AMR speech frame adding time information is CFN=9; the fourth AMR speech frame adding time information is CFN=10; the fifth AMR speech frame adding time information is CFN=11, so the first The time difference between the two CFNs that are different between the two AMR speech frames and the third AMR speech frame, that is, the time difference between the second AMR speech frame and the third AMR speech frame is 160 ms. For details, refer to the structural diagram of the first AMR voice frame, the second AMR voice frame, the third AMR voice frame, the fourth AMR voice frame, and the fifth AMR voice frame shown in FIG.

当至少一个第一语音帧（五个 AMR语音帧）在 LTE空口传输的过程中发生丟包时，双模 UE仅收到第一个 AMR语音帧，第四个 AMR语音帧和第五个 AMR语音帧。按照这三个 AMR语音帧的 SN对第一个 AMR语音帧 , 第四个 AMR语音帧和第五个 AMR语音帧进行排序。由于 AMR语音帧的产生是不连续的，中间可能会存在静默帧。在双模 UE接收到第一个 AMR语音帧，第四个 AMR语音帧，第五个 AMR语音帧后，需要计算第一个 AMR语音帧 , 第四个 AMR语音帧以及第五个 AMR语音帧在 RNC发送给 eNB的时间信息，来确定双模 UE的 AS以不连续发送的方式将接收到的 AMR语音帧发送到双模 UE的 NAS时的每个 AMR语音帧之间的间隔时间。如第一个 AMR 语音帧添加时间信息为 CFN=0，第四个 AMR语音帧添加时间信息为 CFN= 10 , 因此第一个 AMR语音帧和第四个 AMR语音帧之间相差的 10个 CFN, 即第一个 AMR语音帧和第四个 AMR语音帧之间的时间差为 200ms。具体可参照图 4所示的第一个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧的发送给 NAS的结构图。 When at least one first voice frame (five AMR voice frames) is lost during LTE air interface transmission, the dual mode UE receives only the first AMR voice frame, the fourth AMR voice frame and the fifth AMR. Speech frame. The first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame are sorted according to the SNs of the three AMR speech frames. Since the generation of AMR speech frames is discontinuous, there may be silent frames in the middle. After the dual-mode UE receives the first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame, the first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame need to be calculated. The time information sent by the RNC to the eNB is used to determine an interval between each AMR voice frame when the AS of the dual mode UE transmits the received AMR voice frame to the NAS of the dual mode UE in a manner of discontinuous transmission. For example, the first AMR speech frame addition time information is CFN=0, and the fourth AMR speech frame addition time information is CFN=10, so 10 CFNs between the first AMR speech frame and the fourth AMR speech frame are different. , that is, the time difference between the first AMR speech frame and the fourth AMR speech frame is 200 ms. For details, refer to the structure diagram of the first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame shown in FIG.

本发明实施例提供了一种承载电路域语音业务的方法，第一网络设备通过第一接口接收第二网络设备发送的至少一个第一语音帧；第一网络设备通过第二接口将至少一个第一语音帧发送给 UE。与现有技术中通过在核心网部署 IMS ,使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS设备导致成本较高，以及将 LTE网络转回到 GSM或者 UMTS网络时，用户在 LTE 下的语音业务都需要被中断，导致语音业务建立的时延相比，本发明实施例可以不依靠 IMS部署完成语音业务，从而减少成本，并且不中断在 LTE网络中正在运行的数据业务，减少语音业务建立的时延。本发明实施例提供另一种承载电路域语音业务的方法，如图 5 所示，该方法用于上行方向，其具体如下： The embodiment of the present invention provides a method for carrying a voice service in a circuit domain, where the first network device receives at least one first voice frame sent by the second network device by using the first interface, where the first network device sends at least one A voice frame is sent to the UE. In the prior art, by deploying IMS in the core network, the LTE support voice service needs to rely on the IMS deployment, and the purchase and deployment of the IMS device leads to high cost, and when the LTE network is transferred back to the GSM or UMTS network, the user is in the LTE. The voice service needs to be interrupted, and the time delay of the establishment of the voice service is compared. The embodiment of the present invention can complete the voice service without relying on the IMS deployment, thereby reducing the cost and not interrupting the data service running in the LTE network, reducing The delay in establishing a voice service. An embodiment of the present invention provides another method for carrying a voice service in a circuit domain. As shown in FIG. 5, the method is used in an uplink direction, and the details are as follows:

步骤 501 , 第一网络设备通过第二接口接收 UE发送的至少一个第三语音帧，其中，第一网络设备为第一制式的网络设备。 Step 501: The first network device receives, by using the second interface, at least one third voice frame sent by the UE, where the first network device is a first-standard network device.

具体地，第一网络设备的相关描述参见图 2所示的实施例。例如，第一网络设备可以为 LTE网络的基站或者 WLAN中的 AP。如果第一网络设备是 LTE的 eNB, 则第二接口可以为 LTE空口；如果第一网络设备是 WLAN的 AP, 则第二接口可以是 WLAN空口。 Specifically, the related description of the first network device is shown in the embodiment shown in FIG. 2. For example, the first network device can be a base station of an LTE network or an AP in a WLAN. If the first network device is an LTE eNB, the second interface may be an LTE air interface; if the first network device is an WLAN AP, the second interface may be a WLAN air interface.

其中，第二接口为第一网络设备与 UE之间的第一制式空口。 The second interface is a first standard air interface between the first network device and the UE.

步骤 502,第一网络设备通过第一接口将至少一个第三语音帧发送给第二网络设备，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。 Step 502: The first network device sends the at least one third voice frame to the second network device by using the first interface, where the second network device is a network device of the second standard or a network device compatible with the first system and the second system.

其中，第二网络设备的相关描述参见图 2所示的实施例。例如，第二网络设备可以是负责对多个制式资源进行协调的 SRC, 或者第二网络设备可以是 UMTS的 RNC, 或者第二网络可以是 GSM的 BSC。第一接口为第一网络设备与第二网络设备之间连接的接口。 For a description of the second network device, refer to the embodiment shown in FIG. 2. For example, the second network device may be an SRC responsible for coordinating a plurality of standard resources, or the second network device may be an RNC of UMTS, or the second network may be a BSC of GSM. The first interface is an interface between the first network device and the second network device.

另外，至少一个第三语音帧可以为 UE对至少一个第四语音帧添加时间信息和发送序列号而获得的语音帧，至少一个第四语音帧为 UE的 AS接收 UE 的 NAS发送的语音帧。具体地， UE对至少第一个第四语音帧添加时间信息和发送序列号的相关描述参见图 2所示的实施例。例如，双模 UE在接收至少一个第四语音帧之后，通过双模 UE中的 PDCP层为每个第四语音帧添加收到对应第四语音帧的时间（即时间信息），并将每个第四语音帧递交到 RLC层。在 RLC层，双模 UE添加对应第四语音帧的发送序列号。将时间信息和发送序列号添加在对应的第四语音帧上，获得至少一个第三语音帧。在本实施例中，双模 UE在收到每个第四语音帧之后，可以将对应第四语音帧的 RNC与 UE的空口 CFN的后 5个比特作为时间信息，并将该时间信息放在对应第四语音帧的 PDCP结构中，具体地，将该时间信息放在第四语音帧的 PDCP头结构中。发送序列号可以为 RLC的 SN。 PDCP是 UMTS中的一个无线传输协议栈，用于设置语音帧的时间信息。 In addition, the at least one third voice frame may be a voice frame obtained by the UE adding time information and a sequence number to the at least one fourth voice frame, and the at least one fourth voice frame is a voice frame sent by the AS of the UE receiving the NAS of the UE. Specifically, the related description of adding time information and transmitting sequence number to at least the first fourth voice frame by the UE is shown in the embodiment shown in FIG. 2. For example, after receiving the at least one fourth speech frame, the dual mode UE adds and receives each fourth speech frame through the PDCP layer in the dual mode UE. Corresponding to the time of the fourth speech frame (ie, time information), and each fourth speech frame is delivered to the RLC layer. At the RLC layer, the dual mode UE adds a transmission sequence number corresponding to the fourth speech frame. The time information and the transmission sequence number are added to the corresponding fourth speech frame to obtain at least one third speech frame. In this embodiment, after receiving each fourth voice frame, the dual mode UE may use the RNC of the fourth voice frame and the last 5 bits of the air interface CFN of the UE as time information, and place the time information Corresponding to the PDCP structure of the fourth speech frame, specifically, the time information is placed in the PDCP header structure of the fourth speech frame. The sending sequence number can be the SN of the RLC. The PDCP is a wireless transmission protocol stack in UMTS for setting the time information of a voice frame.

在第二网络设备接收到至少一个第三语音帧之后，第二网络设备根据每个第三语音帧上的时间信息，对数据包进行去抖动处理后，生成至少一个第五语音帧，并发给 MSC。具体地，第二网络设备对至少一个第三语音帧进行去抖动的相关描述参见图 2所示的实施例。例如，第二网络设备按照每个第三语音帧上携带的发送序列号对接收的所有第三语音帧进行先后顺序的排序，然后再按照时间信息将正确排序后的各个第一语音帧以连续方式或者不连续方式发送给 MSC。具体而言，当至少一个第一语音帧（五个 AMR语音帧）在 LTE空口传输的过程中没有丟包时，第二网络设备按顺序收到第一个 AMR语音帧，第三个 AMR语音帧，第四个 AMR语音帧，第二个 AMR语音帧 , 第五个 AMR语音帧 , 第二网络设备按照这五个 AMR语音帧的 SN的大小对这五个 AMR语音帧重新进行排序，得到第一个 AMR语音帧，第二个 AMR语音帧，第三个 AMR语音帧，第四个 AMR语音帧，第五个 AMR语音帧。由于 AMR语音帧的产生是不连续的，中间可能会存在静默帧。第二网络设备接收到第一个 AMR语音帧，第二个 AMR语音帧，第三个 AMR语音帧，第四个 AMR语音帧，第五个 AMR语音帧之后，需要根据这五个 AMR语音帧在 UE的 NAS发送给 UE的 AS的时间信息，来确定第二网络设备以不连续发送的方式将接收到的 AMR语音帧发送到 MSC时的每个 AMR语音帧之间的间隔时间。 After the second network device receives the at least one third voice frame, the second network device debounces the data packet according to the time information on each third voice frame, and generates at least one fifth voice frame, and sends the MSC. Specifically, the related description of the de-jittering of the at least one third voice frame by the second network device is shown in the embodiment shown in FIG. 2. For example, the second network device sequentially sorts all the received third voice frames according to the sending sequence number carried on each third voice frame, and then sequentially and correctly sorts the first voice frames according to the time information. The method is sent to the MSC in a discontinuous manner. Specifically, when at least one first voice frame (five AMR voice frames) has no packet loss during LTE air interface transmission, the second network device sequentially receives the first AMR voice frame, and the third AMR voice a frame, a fourth AMR voice frame, a second AMR voice frame, a fifth AMR voice frame, and the second network device reorders the five AMR voice frames according to the size of the SN of the five AMR voice frames. The first AMR speech frame, the second AMR speech frame, the third AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame. Since the generation of AMR speech frames is discontinuous, there may be silence frames in the middle. The second network device receives the first AMR voice frame, the second AMR voice frame, the third AMR voice frame, the fourth AMR voice frame, and the fifth AMR voice frame, and needs to be based on the five AMR voice frames. Determining the time information of the AS sent by the NAS of the UE to the UE to determine, for each AMR voice frame, when the second network device sends the received AMR voice frame to the MSC in a discontinuous manner. The interval between the two.

当至少一个第三语音帧（五个 AMR语音帧）在 LTE空口传输的过程中发生丟包（如第二个 AMR语音帧和第三个 AMR语音帧在 LTE空口传输的过程中连续丟包）时，第二网络设备仅收到第一个 AMR语音帧，第四个 AMR 语音帧 ,第五个 AMR语音帧 ,按照这三个 AMR语音帧的 SN对第一个 AMR 语音帧 , 第四个 AMR语音帧和第五个 AMR语音帧进行排序。由于 AMR语音帧的产生是不连续的，而且中间可能会有静默帧，在第二网络设备收到第一个 AMR语音帧，第四个 AMR语音帧，第五个 AMR语音帧后，需要计算第一个 AMR语音帧 ,第四个 AMR语音帧 ,第五个 AMR语音帧在 UE的 NAS 发给 UE的 AS的时间信息，来确定第二网络设备以不连续发送的方式将收到的 AMR语音帧送到 MSC时的每个 AMR语音帧之间的间隔时间。 When at least one third voice frame (five AMR voice frames) is lost during the LTE air interface transmission (eg, the second AMR voice frame and the third AMR voice frame are continuously lost during the LTE air interface transmission) The second network device receives only the first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame, according to the SN of the three AMR speech frames, the first AMR speech frame, and the fourth The AMR speech frame and the fifth AMR speech frame are sorted. Since the generation of the AMR speech frame is discontinuous, and there may be a silent frame in the middle, after the second network device receives the first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame, it needs to be calculated. The first AMR voice frame, the fourth AMR voice frame, and the fifth AMR voice frame are time information sent by the UE's NAS to the UE's AS to determine that the second network device will receive the AMR in a discontinuous manner. The interval between each AMR speech frame when the speech frame is sent to the MSC.

本发明实施例提供了一种承载电路域语音业务的方法，第一网络设备通过第二接口接收用户设备 UE发送的至少一个第三语音帧；第一网络设备通过第一接口将至少一个第三语音帧发送给第二网络设备。与现有技术中通过在核心网部署 IMS,使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS 设备导致成本较高 , 以及将 LTE网络转回到 GSM或者 UMTS网络时，用户在 LTE下的语音业务都需要被中断，导致语音业务建立的时延相比，本发明实施例可以不依靠 IMS部署完成语音业务，从而减少成本，并且不中断在 LTE 网络中正在运行的数据业务，减少语音业务建立的时延。本发明实施例提供又一种承载电路域语音业务的方法，如图 6所示，该方法用于下行方向，其具体如下： The embodiment of the present invention provides a method for carrying a voice service in a circuit domain, where the first network device receives at least one third voice frame sent by the user equipment UE through the second interface; the first network device sends at least one third through the first interface. The voice frame is sent to the second network device. In the prior art, by deploying IMS on the core network, the LTE support voice service needs to rely on the IMS deployment, and the purchase and deployment of the IMS device leads to high cost, and when the LTE network is transferred back to the GSM or UMTS network, the user is under LTE. The voice service needs to be interrupted, resulting in a delay in the establishment of the voice service. The embodiment of the present invention can complete the voice service without relying on the IMS deployment, thereby reducing the cost, and not interrupting the data service running in the LTE network, and reducing the voice service. Established delay. The embodiment of the present invention provides another method for carrying a voice service in a circuit domain. As shown in FIG. 6, the method is used in a downlink direction, and the details are as follows:

步骤 601 , 第二网络设备接收 MSC发送的至少一个第二语音帧，其中，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。具体地， MSC向第二网络设备发送语音数据，该语音数据以多个语音帧的形式进行传输，在本实施例中第二语音帧为 MSC向第二网络设备发送的语音帧。可选的，第二语音帧可以为 AMR语音帧。 Step 601: The second network device receives the at least one second voice frame sent by the MSC, where the second network device is a second-standard network device or is a network device compatible with the first system and the second system. Specifically, the MSC sends the voice data to the second network device, where the voice data is transmitted in the form of multiple voice frames. In this embodiment, the second voice frame is a voice frame that the MSC sends to the second network device. Optionally, the second voice frame may be an AMR voice frame.

其中， MSC是在电话和数据***之间提供呼叫转换服务和呼叫控制的设备，可以直接提供和公共电话交换网（Public Switched Telephone Network, PSTN )、综合业务数字网（Integrated Services Digital Network, ISDN ), 公共数据网（Public Data Network, PDN )等固定网的接口功能，或者通过网关移动交换中心（ Gateway Mobile Switching Center, GMSC )提供与公共电话交换网（Public Switched Telephone Network, PSTN ), 综合业务数字网（Integrated Services Digital Network, ISDN )、公共数据网（ Public Data Network, PDN ) 等固定网的接口功能，把移动用户与移动用户、移动用户和固定网用户互相连接起来。 RNC是接入网的组成部分，用于提供移动性管理、呼叫处理、链接管理和切换机制。 The MSC is a device for providing call forwarding service and call control between the telephone and the data system, and can directly provide and publicly communicate with a Public Switched Telephone Network (PSTN) or an Integrated Services Digital Network (ISDN). , the public data network (PDN) and other fixed network interface functions, or through the Gateway Mobile Switching Center (GMSC) to provide Public Switched Telephone Network (PSTN), integrated service digital The interface function of the fixed network such as the Integrated Services Digital Network (ISDN) and the Public Data Network (PDN) connects mobile users with mobile users, mobile users, and fixed network users. The RNC is part of the access network and is used to provide mobility management, call processing, link management and handover mechanisms.

其中，第二网络设备可以为负责对多个制式资源进行协调的 SRC, 或者第二网络设备为 UMTS的 RNC或者 GSM的 BSC。 The second network device may be an SRC responsible for coordinating multiple standard resources, or the second network device is a RNC of UMTS or a BSC of GSM.

步骤 602, 第二网络设备将至少一个第二语音帧进行处理，获得至少一个第一语音帧。 Step 602: The second network device processes the at least one second voice frame to obtain at least one first voice frame.

其中，第二网络设备可以根据从电路域的 MSC接收到每个第二语音帧的时间，对至少一个第二语音帧设置时间信息。第二网络设备将发送序列号和时间信息添加在对应的第二语音帧上，获得至少一个第一语音帧，发送序列号为第二网络设备根据发送每个第一语音帧的先后顺序获取的序列号。 The second network device may set time information for the at least one second voice frame according to the time when each second voice frame is received from the MSC of the circuit domain. The second network device adds the sending sequence number and the time information to the corresponding second voice frame, and obtains at least one first voice frame, where the sending sequence number is obtained by the second network device according to the sequence of sending each first voice frame. serial number.

具体地，第二网络设备对至少一个第二语音帧设置时间信息以及发送序列号的相关描述参见图 2所示的实施例。例如，第二网络设备在接收至少一个第二语音帧之后，通过第二网络设备中的 PDCP层为每个第二语音帧添加收到每个第二语音帧的时间，并将每个第二语音帧递交到 RLC 层。在 RLC 层， RNC或者双模 UE添加每个第二语音帧的发送序列号。第一语音帧为第二语音帧添加对应的时间信息和对应的发送序列号的 AMR语音帧。在本实施例中，第二网络设备在接收第二语音帧之后，将对应第二语音帧的第二网络设备的空口连接帧号的后 5 个比特作为时间信息，并将该时间信息放在对应第二语音帧的 PDCP层中。其中，时间信息可以用 CFN表示。发送序列号可以为 RLC的序号，发送序列号可以用 SN表示。 Specifically, the related description of the second network device setting time information and the transmission sequence number for the at least one second voice frame is shown in the embodiment shown in FIG. 2. For example, after receiving the at least one second voice frame, the second network device adds a time for receiving each second voice frame to each second voice frame by using a PDCP layer in the second network device, and each second The voice frame is delivered to the RLC layer. At RLC The layer, RNC or dual mode UE adds the transmission sequence number of each second speech frame. The first speech frame adds corresponding time information and a corresponding AMR speech frame of the transmission sequence number to the second speech frame. In this embodiment, after receiving the second voice frame, the second network device uses the last 5 bits of the air interface connection frame number of the second network device corresponding to the second voice frame as time information, and places the time information Corresponding to the PDCP layer of the second speech frame. Among them, the time information can be represented by CFN. The transmission sequence number may be the serial number of the RLC, and the transmission sequence number may be represented by SN.

步骤 603 ,第二网络设备将至少一个第一语音帧通过第一接口发送给第一网络设备，第一网络设备为第一制式的网络设备。 Step 603: The second network device sends the at least one first voice frame to the first network device by using the first interface, where the first network device is a network device of the first standard.

本发明实施例提供了一种承载电路域语音业务的方法，第二网络设备接收移动交换中心 MSC发送的至少一个第二语音帧，第二网络设备处于通用移动通信*** UMTS网络中；第二网络设备将至少一个第二语音帧进行处理，获得至少一个第一语音帧；第二网络设备将至少一个第一语音帧通过第一接口发送给第一网络设备，第一网络设备处于 LTE网络中。与现有技术中通过在核心网部署 IMS, 使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS设备导致成本较高，以及将 LTE网络转回到 GSM或者 UMTS网络时，用户在 LTE下的语音业务都需要被中断，导致语音业务建立的时延相比，本发明实施例可以不依靠 IMS部署完成语音业务，从而减少成本，并且不中断在 LTE网络中正在运行的数据业务，减少语音业务建立的时延。结合图 2-图 6,本发明实施例提供一种承载电路域语音业务的方法，如图 7所示，该方法为在下行方向实现承载语音业务，该方法包括以下步骤：步骤 701 , 第二网络设备接收 MSC发送的至少一个第二语音帧。 An embodiment of the present invention provides a method for carrying a voice service in a circuit domain, where a second network device receives at least one second voice frame sent by a mobile switching center MSC, where the second network device is in a universal mobile communication system UMTS network; The device processes the at least one second voice frame to obtain the at least one first voice frame. The second network device sends the at least one first voice frame to the first network device by using the first interface, where the first network device is in the LTE network. In the prior art, by deploying IMS on the core network, the LTE support voice service needs to rely on the IMS deployment, and the purchase and deployment of the IMS device leads to high cost, and when the LTE network is transferred back to the GSM or UMTS network, the user is under LTE. The voice service needs to be interrupted, and the voice service is established. The embodiment of the present invention can complete the voice service without relying on the IMS deployment, thereby reducing the cost, and not interrupting the running data service in the LTE network, and reducing the voice service. Established delay. With reference to FIG. 2 and FIG. 6, the embodiment of the present invention provides a method for carrying a voice service in a circuit domain. As shown in FIG. 7, the method is implemented to carry a voice service in a downlink direction, where the method includes the following steps: Step 701, Second The network device receives at least one second voice frame sent by the MSC.

步骤 702,第二网络设备确定至少一个第二语音帧的时间信息和发送序列号，并将时间信息和发送序列号添加在对应的第二语音帧上，获得至少一个第一语音帧。其中，第二网络设备对至少一个第二语音帧添加时间信息和发送序列号的相关描述参见图 2所示的实施例。 Step 702: The second network device determines time information and a transmission sequence number of the at least one second voice frame, and adds the time information and the transmission sequence number to the corresponding second voice frame to obtain at least one first voice frame. For a description of adding the time information and the transmission sequence number to the at least one second voice frame by the second network device, refer to the embodiment shown in FIG. 2.

步骤 703 ,第二网络设备通过第一接口将至少一个第一语音帧发送给第 ― 网络设备。 Step 703: The second network device sends the at least one first voice frame to the first network device by using the first interface.

其中，第一接口为第一网络设备与第二网络设备之间连接的接口。例如，第一接口可以为 Iu接口。其中，第一网络设备可以为 LTE 网络的基站或者 WLAN中的 AP。 The first interface is an interface that is connected between the first network device and the second network device. For example, the first interface can be an Iu interface. The first network device may be a base station of an LTE network or an AP in a WLAN.

其中，第一语音帧为携带时间信息和发送序列号的 AMR语音帧。 The first voice frame is an AMR voice frame carrying time information and a transmission sequence number.

步骤 704, UE通过第二接口接收第一网络设备发送的至少一个第一语音帧。 Step 704: The UE receives, by using the second interface, at least one first voice frame sent by the first network device.

第二接口为第一网络设备与 UE之间的第一制式空口；其中，该第一制式空口可以为 LTE空口； UE可以为双模 UE ,双模 UE指同时具有 UMTS和 LTE 协议栈的终端。第二网络设备通过 LTE空口将携带时间信息和发送序列号的至少一个 AMR语音帧发送给双模 UE。 The second interface is a first-standard air interface between the first network device and the UE; wherein the first-standard air interface can be an LTE air interface; the UE can be a dual-mode UE, and the dual-mode UE refers to a terminal that has both the UMTS and the LTE protocol stack. . The second network device sends the at least one AMR voice frame carrying the time information and the transmission sequence number to the dual mode UE through the LTE air interface.

步骤 705, UE对接收到的至少一个第一语音帧去抖动，获得至少一个第六语音帧。 Step 705: The UE debounces the received at least one first voice frame to obtain at least one sixth voice frame.

由第一网络设备在 LTE空口上进行调度，使用 LTE无线空口资源将这几个数据包发送给双模 UE。双模 UE通过 LTE接入层协议栈完成对承载于 LTE 空口资源的至少一个第一语音帧的接收后， LTE接入层协议栈中的 PDCP层将带有时间信息和发送序列号的 AMR语音帧发送至双模 UE的 UMTS协议栈的 RLC层；由双模 UE内部的 UMTS协议栈的 RLC层和 PDCP层共同完成对接收到的至少一个第一语音帧去抖动。 The first network device performs scheduling on the LTE air interface, and uses the LTE wireless air interface resource to send the data packets to the dual mode UE. After the dual-mode UE completes receiving the at least one first voice frame carried in the LTE air interface resource by using the LTE access layer protocol stack, the PDCP layer in the LTE access layer protocol stack will have the AMR voice with the time information and the transmission sequence number. The frame is sent to the RLC layer of the UMTS protocol stack of the dual mode UE. The RLC layer and the PDCP layer of the UMTS protocol stack inside the dual mode UE jointly perform debounce on the received at least one first voice frame.

双模 UE根据至少一个第一语音帧的时间信息和发送序列号 ,对接收到的至少一个第一语音帧去抖动，获得至少一个第六语音帧。另外，双模 UE可以根据至少一个第一语音帧的发送序列号是否连续以及根据时间信息，确定至少一个第一语音帧的传输间隔时间，并确认在 LTE空口中进行传输时是否出现丟包。 The dual mode UE debounces the received at least one first speech frame according to the time information and the transmission sequence number of the at least one first speech frame to obtain at least one sixth speech frame. In addition, the dual mode UE may determine whether the transmission sequence number of the at least one first voice frame is continuous and according to the time information. The transmission interval of one first voice frame is less, and it is confirmed whether packet loss occurs when transmitting in the LTE air interface.

其中，双模 UE对至少一个第一语音帧进行去抖动的相关描述参见图 2 所示的实施例。 For a description of the de-jittering of the at least one first speech frame by the dual-mode UE, refer to the embodiment shown in FIG. 2.

步骤 706, UE将至少一个第六语音帧发送给 NAS。 Step 706: The UE sends the at least one sixth voice frame to the NAS.

双模 UE 以不连续发送方式将至少一个第六语音帧发送给双模 UE 的 NAS。 The dual mode UE transmits at least one sixth voice frame to the NAS of the dual mode UE in a discontinuous transmission manner.

例如，双模 UE按照 AMR语音帧正常的排列顺序以及间隔时间，将接收的第一个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧发送给 NAS。比如， UE的 NAS中的 AMR语音解码器模块。 For example, the dual mode UE sends the received first AMR speech frame, the fourth AMR speech frame, and the fifth AMR speech frame to the NAS according to the normal arrangement order of the AMR speech frames and the interval time. For example, the AMR speech decoder module in the NAS of the UE.

当在 LTE空口传输的过程中未发生丟包时， UE的 AS按照如图 3所示的第一个 AMR语音帧、第二个 AMR语音帧、第三个 AMR语音帧、第四个 AMR 语音帧以及第五个 AMR语音帧的结构图发送给 NAS。 When no packet loss occurs during the LTE air interface transmission, the AS of the UE follows the first AMR voice frame, the second AMR voice frame, the third AMR voice frame, and the fourth AMR voice as shown in FIG. The structure of the frame and the fifth AMR speech frame is sent to the NAS.

当在 LTE空口传输的过程中发生丟包时， UE的 AS按照如图 4所示的第一个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧的结构图发送给 NAS。 When packet loss occurs during LTE air interface transmission, the AS of the UE is sent to the NAS according to the structure diagram of the first AMR voice frame, the fourth AMR voice frame, and the fifth AMR voice frame as shown in FIG.

本发明实施例提供了一种承载电路域语音业务的方法，与现有技术中通过在核心网部署 IMS , 使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS设备导致成本较高 ,以及将 LTE网络转回到 GSM或者 UMTS网络时，用户在 LTE下的语音业务都需要被中断，导致语音业务建立的时延相比，本发明实施例可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断语音业务，减少时延。 The embodiment of the present invention provides a method for carrying a voice service in a circuit domain. In the prior art, by deploying IMS on a core network, the LTE support voice service needs to rely on IMS deployment, and the purchase and deployment of the IMS device leads to high cost, and When the LTE network is switched back to the GSM or UMTS network, the voice service of the user in the LTE needs to be interrupted, and the time delay of the voice service establishment is compared. The embodiment of the present invention can implement the voice service without relying on the IMS deployment, thereby reducing the cost. And, the voice service is not interrupted in the LTE network, and the delay is reduced.

为了清晰说明下行方向实现承载语音业务时，各个语音帧的传输方向，可参见图 8。结合图 2-图 6,本发明实施例提供另一种承载电路域语音业务的方法，如图 9所示，该方法为在上行方向实现在长期演进空口承载语音业务，该方法包括以下步骤： In order to clearly explain the transmission direction of each voice frame when the downlink direction is implemented to carry voice services, refer to FIG. 8. With reference to FIG. 2 and FIG. 6 , the embodiment of the present invention provides another method for carrying a voice service in a circuit domain. As shown in FIG. 9 , the method is to implement a voice service in a long-term evolution air interface in an uplink direction, where the method includes the following steps:

步骤 901 , UE的 AS从 UE的 NAS收到产生的至少一个第四语音帧。本步骤中的 UE可以为双模 UE。 Step 901: The AS of the UE receives the generated at least one fourth voice frame from the NAS of the UE. The UE in this step may be a dual mode UE.

步骤 902, UE确定至少一个第四语音帧的时间信息和发送序列号，并将时间信息和发送序列号添加在对应的第四语音帧上，获得至少一个第三语音帧。 Step 902: The UE determines time information and a transmission sequence number of the at least one fourth voice frame, and adds the time information and the transmission sequence number to the corresponding fourth voice frame to obtain at least one third voice frame.

双模 UE对至少一个第四语音帧设置时间信息和发送序列号的相关描述参见图 2所示的实施例。 A description of the setting of time information and transmission sequence number for at least one fourth speech frame by the dual mode UE is shown in the embodiment shown in FIG.

步骤 903 , UE通过第二接口将至少一个第三语音帧发送给第一网络设备。第二接口为第一网络设备与 UE之间的第一制式空口。该第一制式空口可以为 LTE空口。其中，第一网络设备可以为 LTE网络的基站或者 WLAN中的 AP。 Step 903: The UE sends the at least one third voice frame to the first network device by using the second interface. The second interface is a first standard air interface between the first network device and the UE. The first standard air interface can be an LTE air interface. The first network device may be a base station of an LTE network or an AP in a WLAN.

第三语音帧为携带时间信息和发送序列号的 AMR语音帧。 The third speech frame is an AMR speech frame carrying time information and a transmission sequence number.

步骤 904 ,第二网络设备通过第一接口接收第 ―网络发送的至少一个第三语音帧。 Step 904: The second network device receives, by using the first interface, at least one third voice frame sent by the first network.

第一接口为第一网络设备与第二网络设备之间连接的接口。例如，第一接口为 Iu接口。 The first interface is an interface between the first network device and the second network device. For example, the first interface is an Iu interface.

步骤 905 , 第二网络设备对接收到的至少一个第三语音帧去抖动，获得至少一个第五语音帧。 Step 905: The second network device debounces the received at least one third voice frame to obtain at least one fifth voice frame.

其中，第二网络设备对至少一个第三语音帧进行去抖动的相关描述参见图 2所示的实施例。 For a description of the de-jittering of the at least one third speech frame by the second network device, refer to the embodiment shown in FIG. 2.

步骤 906, 第二网络设备将至少一个第五语音帧发送给 MSC。 Step 906: The second network device sends the at least one fifth voice frame to the MSC.

其中，第二网络设备可以以不连续发送方式将至少一个第五语音帧发送给 MSC。 The second network device may send the at least one fifth voice frame in a discontinuous transmission manner. To the MSC.

例如，第二网络设备按照 AMR语音帧正常的排列顺序以及间隔时间，将接收的第一个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧发送给 MSC , 以便 MSC处理 AMR语音数据的非接入层协议栈 (比如 , AMR语音解码器模块)。 For example, the second network device sends the received first AMR voice frame, the fourth AMR voice frame, and the fifth AMR voice frame to the MSC according to the normal arrangement order of the AMR voice frames and the interval time, so that the MSC processes the AMR voice. Non-access stratum protocol stack for data (eg, AMR speech decoder module).

当在 LTE空口传输的过程中未发生丟包时，第二网络设备按照如图 3所示的第一个 AMR语音帧、第二个 AMR语音帧、第三个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧的结构图发送给 MSC。 When no packet loss occurs during the LTE air interface transmission, the second network device follows the first AMR voice frame, the second AMR voice frame, the third AMR voice frame, and the fourth AMR as shown in FIG. The structure of the speech frame and the fifth AMR speech frame is sent to the MSC.

当在 LTE空口传输的过程中发生丟包时，第二网络设备按照如图 4所示的第一个 AMR语音帧、第四个 AMR语音帧以及第五个 AMR语音帧的结构图发送给 MSC。 When packet loss occurs during the LTE air interface transmission, the second network device sends the MSC to the MSC according to the structure diagrams of the first AMR voice frame, the fourth AMR voice frame, and the fifth AMR voice frame as shown in FIG. .

需要说明的是，图 7表示第一网络设备向 UE传输至少一个第一语音帧的下行方向，图 9表示 UE向第一网络设备传输至少一个第五语音帧的上行方向；一种承载电路域语音业务的方法可以为另一方法，此方法可以包括图 7与图 9。 It should be noted that FIG. 7 shows a downlink direction in which the first network device transmits at least one first voice frame to the UE, and FIG. 9 shows an uplink direction in which the UE transmits at least one fifth voice frame to the first network device; The method of voice service may be another method, which may include FIG. 7 and FIG.

本发明实施例提供了一种承载电路域语音业务的方法，与现有技术中通过在核心网部署 IMS, 使得 LTE支持语音业务需要依靠 IMS部署，购买和部署 IMS设备导致成本较高 ,以及将 LTE网络转回到 GSM或者 UMTS网络时，用户在 LTE下的语音业务都需要被中断，导致语音业务建立的时延相比，本发明实施例可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断语音业务，减少时延。 The embodiment of the present invention provides a method for carrying a voice service in a circuit domain. In the prior art, by deploying IMS on a core network, the LTE support voice service needs to rely on IMS deployment, and the purchase and deployment of the IMS device leads to high cost, and When the LTE network is switched back to the GSM or UMTS network, the voice service of the user in the LTE needs to be interrupted, and the time delay of the voice service establishment is compared. The embodiment of the present invention can implement the voice service without relying on the IMS deployment, thereby reducing the cost. And, the voice service is not interrupted in the LTE network, and the delay is reduced.

为了清晰说明上行方向实现承载语音业务时，各个语音帧的传输方向，可参见图 10。如图 11所示，本发明实施例提供一种承载电路域语音业务的装置 11 , 该装置 11为第一制式的网络设备，具体包括：接收模块 1101 , 发送模块 1102。接收模块 1101 , 用于通过第一接口接收第二网络设备发送的至少一个第一语音帧，并将至少一个第一语音帧提供给发送模块 1102, 其中，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。 To clearly explain the transmission direction of each voice frame when the uplink direction is implemented to carry voice services, refer to FIG. As shown in FIG. 11 , an embodiment of the present invention provides a device 11 for carrying a voice service in a circuit domain. The device 11 is a network device of a first standard, and specifically includes: a receiving module 1101 and a sending module 1102. The receiving module 1101 is configured to receive, by using the first interface, the at least one first voice frame sent by the second network device, and provide the at least one first voice frame to the sending module 1102, where the second network device is a network of the second standard The device is either a network device compatible with the first system and the second system.

发送模块 1102, 用于通过第二接口将至少一个第一语音帧发送给用户设备 UE。 The sending module 1102 is configured to send the at least one first voice frame to the user equipment UE by using the second interface.

第二语音帧可以为 AMR语音帧。当然，本实施例不限制语音帧的种类。第一制式为 LTE网络或者 WLAN。第二制式为 UMTS网络或者 GSM网络。 The second speech frame can be an AMR speech frame. Of course, this embodiment does not limit the type of voice frame. The first system is an LTE network or a WLAN. The second standard is a UMTS network or a GSM network.

该装置 11为 LTE的 eNB或者 WLAN的 AP。第二网络设备为 UMTS的无线网络控制器 RNC, 或者为 GSM的基站控制器 BSC, 或者为负责对多个无线制式资源进行协调的统一无线控制器 SRC。 The device 11 is an eNB of LTE or an AP of a WLAN. The second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating a plurality of radio standard resources.

第一接口为装置 11与第二网络设备之间连接的接口；第二接口为装置 11 与 UE之间的第一制式空口。 The first interface is an interface connected between the device 11 and the second network device; the second interface is a first standard air interface between the device 11 and the UE.

需要说明的是，图 11所示装置 11 中，其各个模块的具体实施过程以及各个模块之间的信息交互等内容，由于与本发明方法实施例基于同一发明构思，可以参见方法实施例，在此不——赘述。 It should be noted that, in the device 11 shown in FIG. 11, the specific implementation process of each module and the information interaction between the modules, etc., are based on the same inventive concept as the method embodiment of the present invention, and may be referred to the method embodiment. This is not - repeat.

本发明实施例提供了一种承载电路域语音业务的装置，可以不依靠 IMS 部署完成语音业务，从而减少成本，并且不中断 UE在 LTE网络中正在运行的数据业务，减少语音业务建立的时延。如图 12所示，本发明实施例提供另一种承载电路域语音业务的装置 12, 该装置 12为第一制式的网络设备，具体包括：接收模块 1201 ,发送模块 1202。 The embodiment of the invention provides a device for carrying a voice service in a circuit domain, which can complete the voice service without relying on the IMS, thereby reducing the cost, and not interrupting the data service that the UE is running in the LTE network, and reducing the delay of the voice service establishment. . As shown in FIG. 12, the embodiment of the present invention provides another device 12 for carrying a circuit domain voice service, where the device 12 is a first-standard network device, and specifically includes: a receiving module 1201 and a sending module 1202.

接收模块 1201 , 用于通过第二接口接收用户设备 UE发送的至少一个第三语音帧，并将至少一个第三语音帧提供给发送模块 1202。 The receiving module 1201 is configured to receive, by using the second interface, at least one third voice frame sent by the user equipment UE, and provide the at least one third voice frame to the sending module 1202.

发送模块 1202, 用于通过第一接口将至少一个第三语音帧发送给第二网络设备，其中，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。 The sending module 1202 is configured to send, by using the first interface, the at least one third voice frame to the second network device, where the second network device is a network device of the second standard or is a network device compatible with the first system and the second system. .

其中，第一制式为 LTE网络或者 WLAN; 第二制式为 UMTS 网络或者 GSM网络。 The first system is an LTE network or a WLAN; the second system is a UMTS network or a GSM network.

装置 12为 LTE的 eNB或者 WLAN的 AP；第二网络设备为 UMTS的 RNC , 或者为 GSM的 BSC, 或者为负责对多个制式资源进行协调的 SRC。 The device 12 is an LTE eNB or an WLAN AP; the second network device is an UMTS RNC, or a GSM BSC, or an SRC responsible for coordinating multiple standard resources.

第一接口为装置 12与第二网络设备之间连接的接口；第二接口为装置 12 与 UE之间的第一制式空口。 The first interface is an interface connected between the device 12 and the second network device; the second interface is a first standard air interface between the device 12 and the UE.

至少一个第三语音帧为 UE的接入层对接收的至少一个第二语音帧，添加 UE从自适应多速率 AMR语音编解码模块接收到每个第二语音帧的时间信息和添加 UE发送每个第三语音帧的序列号而获得的语音帧，时间信息为 UE接收到至少一个第四语音帧的时间，发送序列号为 UE根据至少一个第三语音帧的发送先后顺序获取的序列号。 The at least one third voice frame is the access layer of the UE, and the at least one second voice frame received by the UE adds time information of each second voice frame received by the UE from the adaptive multi-rate AMR voice codec module, and adds the UE to send each The time frame of the voice frame obtained by the sequence number of the third voice frame, the time information is the time when the UE receives the at least one fourth voice frame, and the transmission sequence number is the sequence number obtained by the UE according to the sending sequence of the at least one third voice frame.

需要说明的是，图 12所示装置 12中，其各个模块的具体实施过程以及各个模块之间的信息交互等内容，由于与本发明方法实施例基于同一发明构思，可以参见方法实施例，在此不——赘述。 It should be noted that, in the device 12 shown in FIG. 12, the specific implementation process of each module and the information interaction between the modules are based on the same inventive concept as the method embodiment of the present invention, and may refer to the method embodiment. This is not - repeat.

本发明实施例提供了在长期演进空口承载语音业务的装置，可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断下语音业务，减少时延。如图 13所示，本发明实施例提供另一种承载电路域语音业务的装置 13 , 该装置 13为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备，其具体包括：接收模块 1301 , 处理模块 1302, 发送模块 1303。 The embodiment of the present invention provides a device for carrying a voice service in a long-term evolution air interface, which can implement voice service without relying on IMS deployment, thereby reducing cost, and not interrupting voice service in the LTE network, and reducing delay. As shown in FIG. 13, the embodiment of the present invention provides another device 13 for carrying a circuit domain voice service, where the device 13 is a second-standard network device or a network device compatible with the first system and the second system. Specifically, the method includes: a receiving module 1301, a processing module 1302, and a sending module 1303.

接收模块 1301 ,用于接收 MSC发送的至少一个第二语音帧，并将至少一个第二语音帧提供给处理模块 1302。 The receiving module 1301 is configured to receive at least one second voice frame sent by the MSC, and provide the at least one second voice frame to the processing module 1302.

处理模块 1302, 用于将至少一个第二语音帧进行处理，获得至少一个第一语音帧，并将至少一个第一语音帧提供给发送模块 1303。 The processing module 1302 is configured to process the at least one second voice frame, obtain at least one first voice frame, and provide the at least one first voice frame to the sending module 1303.

发送模块 1303 , 用于将至少一个第一语音帧通过第一接口发送给第一网络设备，其中，第一网络设备为第一制式的网络设备。 The sending module 1303 is configured to send the at least one first voice frame to the first network device by using the first interface, where the first network device is a network device of the first standard.

其中，第一接口为第一网络设备与装置之间连接的接口。该装置 13可以为 UMTS的无线网络控制器 RNC, 或者可以为 GSM的基站控制器 BSC, 或者可以为负责对多个制式资源进行协调的统一无线控制器 SRC The first interface is an interface between the first network device and the device. The device 13 can be a radio network controller RNC of the UMTS, or can be a base station controller BSC of the GSM, or can be a unified radio controller responsible for coordinating multiple standard resources.

进一步的，如图 14所示，本发明实施例还提供另一种承载电路域语音业务的装置 14, 该装置 14中的处理模块 1302, 包括：设置单元 13021 , 获得单元 13022, 去抖动单元 13023。 Further, as shown in FIG. 14, the embodiment of the present invention further provides another device 14 for carrying a circuit domain voice service, and the processing module 1302 of the device 14 includes: a setting unit 13021, an obtaining unit 13022, and a debounce unit 13023. .

具体的，设置单元 13021根据从电路域的 MSC接收到至少一个第二语音帧的时间，对至少一个第二语音帧设置时间信息，并将时间信息提供给获得单元 13022, 时间信息为装置 14接收到至少一个第二语音帧的时间。然后获得单元 13022将发送序列号和时间信息添加在对应的第二语音帧上，获得至少一个第一语音帧，发送序列号为第二网络设备根据至少一个第一语音帧的发送先后顺序获取的序列号。 Specifically, the setting unit 13021 sets time information for the at least one second voice frame according to the time when the at least one second voice frame is received from the MSC of the circuit domain, and provides the time information to the obtaining unit 13022, where the time information is received by the device 14 The time to at least one second speech frame. Then, the obtaining unit 13022 adds the sending sequence number and the time information to the corresponding second voice frame to obtain at least one first voice frame, where the sending sequence number is obtained by the second network device according to the sending sequence of the at least one first voice frame. serial number.

进一步可选的，接收模块 1301 , 还用于接收第一网络设备发送的至少一个第三语音帧，并将至少一个第三语音帧提供给处理模块中的去抖动单元 13023。其中，至少一个第三语音帧中包括至少一个第三语音帧对应的发送序列号以及时间信息。去抖动单元 13023通过至少一个第三语音帧对应的发送序列号以及时间信息对至少一个第三语音帧进行去抖动，获得至少一个第五语音帧，并将至少一个第六语音帧提供给发送模块 1303。然后发送模块 1303 将至少一个第五语音帧发送给 MSC。 Further, the receiving module 1301 is further configured to receive the at least one third voice frame sent by the first network device, and provide the at least one third voice frame to the debounce unit 13023 in the processing module. The at least one third voice frame includes a transmission sequence number and time information corresponding to the at least one third voice frame. De-jitter unit 13023 transmits corresponding to at least one third voice frame The sequence number and the time information debounce the at least one third speech frame to obtain at least one fifth speech frame, and provide the at least one sixth speech frame to the transmitting module 1303. The sending module 1303 then transmits at least one fifth voice frame to the MSC.

需要说明的是，图 13所示装置 13-图 14所示装置 14中，其各个模块的具体实施过程以及各个模块之间的信息交互等内容，由于与本发明方法实施例基于同一发明构思，可以参见方法实施例，在此不——赘述。 It should be noted that, in the device 14 shown in FIG. 13 , the specific implementation process of each module and the information interaction between the modules in the device 14 shown in FIG. 14 are based on the same inventive concept as the method embodiment of the present invention. See the method embodiment, which is not described here.

本发明实施例提供了在长期演进空口承载语音业务的装置，可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断下语音业务，减少时延。本发明实施例还提供一种承载电路域语音业务的装置，该装置可以应用于第一网络设备，如图 15所示，图 15为第一网络设备的硬件结构示意图。其中，第一网络设备可包括存储器 1501、收发器 1502和总线 1504, 其中，存储器 1501、接收器 1502、发送器 1503通过总线 1504通信连接。 The embodiment of the present invention provides a device for carrying a voice service in a long-term evolution air interface, which can implement voice service without relying on IMS deployment, thereby reducing cost, and not interrupting voice service in the LTE network, and reducing delay. The embodiment of the present invention further provides a device for carrying a voice service in a circuit domain, where the device can be applied to a first network device, as shown in FIG. 15, and FIG. 15 is a schematic diagram of a hardware structure of the first network device. The first network device may include a memory 1501, a transceiver 1502, and a bus 1504. The memory 1501, the receiver 1502, and the transmitter 1503 are communicably connected by a bus 1504.

存储器 1501可以是只读存储器（Read only Memory, ROM ), 静态存储设备，动态存储设备或者随机存取存储器（Random Access Memory, RAM )。存储器 1501可以存储操作***和其他应用程序。在通过软件或者固件来实现本发明实施例提供的技术方案时，用于实现本发明实施例提供的技术方案的程序代码保存在存储器 1501中。 The memory 1501 may be a read only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 1501 can store an operating system and other applications. When the technical solution provided by the embodiment of the present invention is implemented by software or firmware, the program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 1501.

接收器 1502和发送器 1503用于装置与其他设备或通信网络（例如但不限于以太网， RAN , WLAN等 )之间的通信。 Receiver 1502 and transmitter 1503 are used for communication between the device and other devices or communication networks such as, but not limited to, Ethernet, RAN, WLAN, and the like.

总线 1504可包括一通路，在装置各个部件（例如存储器 1501、接收器 1502、发送器 1503 )之间传送信息。具体的，总线 1504可以是 ISA ( Industry Standard Architecture, 工业标准体系结构) 总线、 PCI ( Peripheral Component Interconnect , 夕卜部设备互连）总线或 EISA ( Extended Industry Standard Architecture, 扩展工业标准体系结构）总线等。所述总线可以是一条或多条物理线路，当是多条物理线路时可以分为地址总线、数据总线、控制总线等。 Bus 1504 can include a path for communicating information between various components of the device (e.g., memory 1501, receiver 1502, transmitter 1503). Specifically, the bus 1504 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard). Architecture, extended industry standard architecture) bus, etc. The bus may be one or more physical lines, and when it is a plurality of physical lines, it may be divided into an address bus, a data bus, a control bus, and the like.

应注意，尽管图 15所示的硬件仅仅示出了存储器 1501、接收器 1502、发送器 1503以及总线 1504,但是在具体实现过程中，本领域的技术人员应当明白，该终端还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，还可包含实现其他功能的硬件器件。 It should be noted that although the hardware shown in FIG. 15 only shows the memory 1501, the receiver 1502, the transmitter 1503, and the bus 1504, in the specific implementation process, those skilled in the art should understand that the terminal also includes the normal operation. Other devices necessary. At the same time, those skilled in the art will appreciate that hardware devices that implement other functions may also be included, depending on the particular needs.

具体的，图 15所示的第一网络设备用于实现图 11实施例所示的装置时，该装置中的接收器 1502, 用于通过第一接口接收第二网络设备发送的至少一个第一语音帧，并将至少一个第一语音帧提供给发送器 1503 , 其中，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。 Specifically, when the first network device shown in FIG. 15 is used to implement the device shown in the embodiment of FIG. 11, the receiver 1502 in the device is configured to receive, by using the first interface, at least one first sent by the second network device. a voice frame, and the at least one first voice frame is provided to the transmitter 1503, wherein the second network device is a second-standard network device or is a network device compatible with the first system and the second system.

发送器 1503 , 用于通过第二接口将至少一个第一语音帧发送给 UE。 The transmitter 1503 is configured to send the at least one first voice frame to the UE by using the second interface.

第一制式为 LTE网络或者 WLAN; 第二制式为 UMTS网络或者 GSM网络。 The first system is an LTE network or a WLAN; the second system is a UMTS network or a GSM network.

装置 15为 LTE的 eNB或者 WLAN的 AP；第二网络设备为 UMTS的 RNC , 或者为 GSM的 BSC, 或者为负责对多个制式资源进行协调的 SRC。 The device 15 is an LTE eNB or an WLAN AP; the second network device is an UMTS RNC, or a GSM BSC, or an SRC responsible for coordinating a plurality of standard resources.

第一接口为装置 15与第二网络设备之间连接的接口；第二接口为装置 15 与 UE之间的第一制式空口。 The first interface is an interface connected between the device 15 and the second network device; the second interface is a first standard air interface between the device 15 and the UE.

本发明实施例可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断下语音业务，减少时延。 The embodiment of the invention can implement the voice service without relying on the IMS deployment, thereby reducing the cost, and not interrupting the voice service in the LTE network, and reducing the delay.

本发明实施例还提供一种承载电路域语音业务的装置，该装置可以应用于第一网络设备，如图 16所示，图 16为第一网络设备的硬件结构示意图。其中，第一网络设备可包括存储器 1601、接收器 1602、发送器 1603和总线 1604。其中，存储器 1601、接收器 1602、发送器 1603、处理器 1403通过总线 1604通信连接。 The embodiment of the invention further provides a device for carrying a voice service in a circuit domain, and the device can be applied. In the first network device, as shown in FIG. 16, FIG. 16 is a schematic diagram of a hardware structure of the first network device. The first network device may include a memory 1601, a receiver 1602, a transmitter 1603, and a bus 1604. The memory 1601, the receiver 1602, the transmitter 1603, and the processor 1403 are communicably connected by a bus 1604.

其中，在装置中对于存储器 1601、接收器 1602、发送器 1603以及总线 1604的共同功能的概述可参考图 15 中的第一网络设备包括的存储器 1501、接收器 1502、发送器 1503以及总线 1504的说明，在此不再——赘述。 For an overview of the common functions of the memory 1601, the receiver 1602, the transmitter 1603, and the bus 1604 in the device, refer to the memory 1501, the receiver 1502, the transmitter 1503, and the bus 1504 included in the first network device in FIG. Explain, no longer here - repeat.

应注意，尽管图 16所示的硬件仅仅示出了存储器 1601、接收器 1602、发送器 1603以及总线 1604,但是在具体实现过程中，本领域的技术人员应当明白，该终端还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，还可包含实现其他功能的硬件器件。 It should be noted that although the hardware shown in FIG. 16 only shows the memory 1601, the receiver 1602, the transmitter 1603, and the bus 1604, in the specific implementation process, those skilled in the art should understand that the terminal also includes the normal operation. Other devices necessary. At the same time, those skilled in the art will appreciate that hardware devices that implement other functions may also be included, depending on the particular needs.

具体的，图 16所示的第一网络设备用于实现图 12实施例所示的装置时，该装置中的接收器 1602, 用于通过第二接口接收用户设备 UE发送的至少一个第三语音帧，并将至少一个第三语音帧提供给发送器 1603。 Specifically, when the first network device shown in FIG. 16 is used to implement the device shown in the embodiment of FIG. 12, the receiver 1602 in the device is configured to receive, by using the second interface, at least one third voice sent by the user equipment UE. a frame, and providing at least one third speech frame to the transmitter 1603.

发送器 1603 , 用于通过第一接口将至少一个第三语音帧发送给第二网络设备，其中，第二网络设备为第二制式的网络设备或者为兼容第一制式和第二制式的网络设备。 The transmitter 1603 is configured to send, by using the first interface, the at least one third voice frame to the second network device, where the second network device is a network device of the second standard or is a network device compatible with the first system and the second system. .

装置 16为 LTE的 eNB或者 WLAN的 AP；第二网络设备为 UMTS的 RNC , 或者为 GSM的 BSC, 或者为负责对多个制式资源进行协调的 SRC; The device 16 is an LTE eNB or an WLAN AP; the second network device is an UMTS RNC, or a GSM BSC, or an SRC responsible for coordinating multiple standard resources;

第一接口为装置 16与第二网络设备之间连接的接口；第二接口为装置 16 与 UE之间的第一制式空口。 The first interface is an interface connected between the device 16 and the second network device; the second interface is a first standard air interface between the device 16 and the UE.

另外，需要说明的是，至少一个第三语音帧为 UE对至少一个第四语音帧添加时间信息和发送序列号而获得的语音帧，至少一个第四语音帧为 UE的接入层 AS接收 UE的非接入层 NAS发送的语音帧 , 时间信息为 UE接收到至少一个第四语音帧的时间，发送序列号为 UE根据至少一个第三语音帧的发送先后顺序获取的序列号。 In addition, it should be noted that the at least one third voice frame is a voice frame obtained by adding a time information and a sequence number to the at least one fourth voice frame, and at least one fourth voice frame is a UE. The inbound layer AS receives the voice frame sent by the UE's non-access stratum NAS, and the time information is the time when the UE receives the at least one fourth voice frame, and the sending sequence number is the sequence that the UE acquires according to the sending sequence of the at least one third voice frame. number.

本发明实施例可以实现不依靠 IMS部署完成语音业务，从而减少成本，并且在 LTE网络中不中断下语音业务，减少时延。本发明实施例还提供一种承载电路域语音业务的装置，该装置可以应用于第二网络设备，如图 17所示，图 17为第二网络设备的硬件结构示意图。其中，第二网络设备可包括存储器 1701、接收器 1702、发送器 1703、处理器 1704和总线 1705。其中，存储器 1701、接收器 1702、发送器 1703、处理器 1704通过总线 1705通信连接。 The embodiment of the invention can implement the voice service without relying on the IMS deployment, thereby reducing the cost, and not interrupting the voice service in the LTE network, and reducing the delay. The embodiment of the present invention further provides a device for carrying a voice service in a circuit domain, where the device can be applied to a second network device, as shown in FIG. 17, and FIG. 17 is a schematic diagram of a hardware structure of the second network device. The second network device may include a memory 1701, a receiver 1702, a transmitter 1703, a processor 1704, and a bus 1705. The memory 1701, the receiver 1702, the transmitter 1703, and the processor 1704 are communicably connected by a bus 1705.

处理器 1704可以釆用通用的中央处理器（ Central Processing Unit, CPU ), 微处理器，应用专用集成电路（ Application Specific Integrated Circuit, ASIC ), 或者一个或多个集成电路，用于执行相关程序，以实现本发明实施例所提供的技术方案。 The processor 1704 can use a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs. The technical solution provided by the embodiment of the present invention is implemented.

其中在装置中对于存储器 1701、接收器 1702、发送器 1703以及总线 1705 的共同功能的概述可参考图 15中的第一网络设备包括的存储器 1501、接收器 1502、发送器 1503以及总线 1505的说明，在此不再——赘述。 For an overview of the common functions of the memory 1701, the receiver 1702, the transmitter 1703, and the bus 1705 in the device, reference may be made to the description of the memory 1501, the receiver 1502, the transmitter 1503, and the bus 1505 included in the first network device in FIG. , no longer here - repeat.

应注意，尽管图 17所示的硬件仅仅示出了存储器 1701、接收器 1702、发送器 1703、处理器 1704以及总线 1705, 但是在具体实现过程中，本领域的技术人员应当明白，该终端还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，还可包含实现其他功能的硬件器件。 It should be noted that although the hardware shown in FIG. 17 only shows the memory 1701, the receiver 1702, the transmitter 1703, the processor 1704, and the bus 1705, in a specific implementation process, those skilled in the art should understand that the terminal also Contains other devices necessary to achieve proper operation. At the same time, those skilled in the art will appreciate that hardware devices that implement other functions may also be included, depending on the particular needs.

具体的，图 17所示的第二网络设备用于实现图 13-图 14实施例所示的装置时，该装置中的接收器 1702, 用于接收 MSC发送的至少一个第二语音帧，并将至少一个第二语音帧提供给处理器 1704。 Specifically, when the second network device shown in FIG. 17 is used to implement the apparatus shown in the embodiment of FIG. 13 to FIG. 14, the receiver 1702 in the apparatus is configured to receive at least one second voice frame sent by the MSC. At least one second speech frame is provided to the processor 1704.

处理器 1704, 用于将至少一个第二语音帧进行处理，获得至少一个第一语音帧，并将至少一个第一语音帧提供给发送器 1703。 The processor 1704 is configured to process the at least one second speech frame to obtain at least one first speech frame, and provide the at least one first speech frame to the transmitter 1703.

发送器 1703 , 用于将至少一个第一语音帧通过第一接口发送给第一网络设备，其中，第一网络设备为第一制式的网络设备。 The transmitter 1703 is configured to send the at least one first voice frame to the first network device by using the first interface, where the first network device is a network device of the first standard.

其中第一制式为 LTE网络或者 WLAN;第二制式为 UMTS网络或者 GSM 网络。 The first system is an LTE network or a WLAN; the second system is a UMTS network or a GSM network.

第一网络设备为 LTE的 eNB或者 WLAN的 AP；装置 17为 UMTS的 RNC , 或者为 GSM的 BSC, 或者为负责对多个制式资源进行协调的 SRC; The first network device is an LTE eNB or an WLAN AP; the device 17 is an UMTS RNC, or a GSM BSC, or an SRC responsible for coordinating a plurality of standard resources;

第一接口为第一网络设备与装置之间连接的接口。 The first interface is an interface between the first network device and the device.

具体的，处理器 1704根据从电路域的 MSC接收到至少一个第二语音帧的时间，对至少一个第二语音帧设置时间信息，将发送序列号和时间信息添加在对应的第二语音帧上，获得至少一个第一语音帧，发送序列号为第二网络设备根据至少一个第一语音帧的发送先后顺序获取的序列号，时间信息为装置 17接收到至少一个第二语音帧的时间。 Specifically, the processor 1704 sets time information for the at least one second voice frame according to the time when the at least one second voice frame is received from the MSC of the circuit domain, and adds the sending sequence number and time information to the corresponding second voice frame. Obtaining at least one first voice frame, the sending sequence number is a sequence number obtained by the second network device according to a sending sequence of the at least one first voice frame, and the time information is a time when the device 17 receives the at least one second voice frame.

进一步的，接收器 1702, 还用于接收第一网络设备发送的至少一个第三语音帧，并将至少一个第三语音帧提供给处理器 1704, 至少一个第三语音帧中包括至少一个第三语音帧对应的发送序列号以及时间信息。处理器 1704根据至少一个第三语音帧对应的发送序列号以及时间信息对至少一个第三语音帧进行去抖动，获得至少一个第五语音帧，并将至少一个第五语音帧提供给发送器 1703。然后发送器 1703将至少一个第五语音帧发送给 MSC。 Further, the receiver 1702 is further configured to receive the at least one third voice frame sent by the first network device, and provide the at least one third voice frame to the processor 1704, where the at least one third voice frame includes at least one third The transmission sequence number and time information corresponding to the voice frame. The processor 1704 debounces the at least one third speech frame according to the transmission sequence number and the time information corresponding to the at least one third speech frame, obtains at least one fifth speech frame, and provides the at least one fifth speech frame to the transmitter 1703. . Transmitter 1703 then transmits at least one fifth speech frame to the MSC.

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的***，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。 It will be clearly understood by those skilled in the art that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above-mentioned work can be performed as needed. The allocation can be done by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。 In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。 The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以釆用硬件的形式实现，也可以釆用软件功能单元的形式实现。 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software function unit.

所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）或处理器（processor )执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括： U盘、移动硬盘、只读存储器（ROM, Read-Only Memory )、随机存取存储器（ RAM, Random Access Memory )、磁碟或者光盘等各种可以存储程序代码的介质。 The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, and a read-only memory. A medium that can store program code, such as a ROM (Read-Only Memory), a random access memory (RAM), a disk, or an optical disk.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

权利要求书 claims

1、一种承载电路域语音业务的方法，其特征在于，包括： 1. A method for carrying circuit domain voice services, characterized by including:

第一网络设备通过第一接口接收第二网络设备发送的至少一个第一语音帧，其中，所述第一网络设备为第一制式的网络设备，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备； The first network device receives at least one first voice frame sent by the second network device through the first interface, wherein the first network device is a network device of the first standard, and the second network device is a network of the second standard. The device may be a network device compatible with the first standard and the second standard;

所述第 ―网络设备通过第二接口将所述至少一个第一语音帧发送给用户设备 UE。 The first network device sends the at least one first voice frame to the user equipment UE through the second interface.

2、根据权利要求 1所述的方法，其特征在于， 2. The method according to claim 1, characterized in that,

所述第一制式为长期演进 LTE网络或者无线局域网 WLAN; The first standard is the long-term evolution LTE network or wireless local area network WLAN;

所述第二制式为通用移动通信*** UMTS网络或者全球移动通信*** GSM 网络； The second standard is the Universal Mobile Telecommunications System UMTS network or the Global System for Mobile Telecommunications GSM network;

所述第一网络设备为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 The first network device is the LTE base station eNB or the WLAN wireless access point.

AP; AP;

所述第二网络设备为所述 UMTS的无线网络控制器 RNC，或者为所述 GSM 的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The second network device is the radio network controller RNC of the UMTS, or the base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating resources of multiple standards;

所述第一接口为所述第一网络设备与所述第二网络设备之间连接的接口；所述第二接口为所述第 ―网络设备与所述 UE之间的第一制式空口。 The first interface is an interface connected between the first network device and the second network device; the second interface is a first standard air interface between the first network device and the UE.

3、根据权利要求 1或 2所述的方法，其特征在于， 3. The method according to claim 1 or 2, characterized in that,

所述至少一个第一语音帧为所述第二网络设备对接收的至少一个第二语音帧添加时间信息和发送序列号而获得的语音帧，其中，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号，所述至少一个第二语音帧为所述第二网络设备接收电路域的移动交换中心 MSC发送的语音帧。 The at least one first voice frame is a voice frame obtained by adding time information and sending a sequence number to the at least one second voice frame received by the second network device, where the time information is the second network device. The time when the at least one second voice frame is received, the sending sequence number is a sequence number obtained by the second network device according to the sending order of the at least one first voice frame, the at least one second voice frame The frame is a voice frame sent by the mobile switching center MSC received by the second network device in the circuit domain.

4、一种承载电路域语音业务的方法，其特征在于，包括： 4. A method for carrying circuit domain voice services, characterized by including:

第一网络设备通过第二接口接收用户设备 UE发送的至少一个第三语音帧，其中，所述第一网络设备为第一制式的网络设备； The first network device receives at least one third voice frame sent by the user equipment UE through the second interface, wherein the first network device is a network device of the first standard;

所述第 ―网络设备通过第一接口将所述至少一个第三语音帧发送给所述第二网络设备，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备。 The first network device sends the at least one third voice frame to the second network device through the first interface, and the second network device is a network device of the second standard or is compatible with the first standard and the second network device. The network equipment of the second standard.

5、根据权利要求 4所述的方法，其特征在于， 5. The method according to claim 4, characterized in that,

AP; AP;

所述第一接口为所述第一网络设备与所述第二网络设备之间连接的接口；所述第二接口为所述第一网络设备与所述 UE之间的第一制式空口。 The first interface is an interface connected between the first network device and the second network device; the second interface is a first-standard air interface between the first network device and the UE.

6、根据权利要求 5所述的方法，其特征在于， 6. The method according to claim 5, characterized in that,

所述至少一个第三语音帧为所述 UE对至少一个第四语音帧添加时间信息和发送序列号而获得的语音帧，所述至少一个第四语音帧为所述 UE 的接入层 AS接收所述 UE的非接入层 NAS发送的语音帧，所述时间信息为所述 UE接收到所述至少一个第四语音帧的时间，所述发送序列号为所述 UE根据所述至少 ― 个第三语音帧的发送先后顺序获取的序列号。 The at least one third voice frame is a voice frame obtained by the UE adding time information and sending a sequence number to at least one fourth voice frame. The at least one fourth voice frame is received by the access layer AS of the UE. The voice frame sent by the non-access layer NAS of the UE, the time information is the time when the UE receives the at least one fourth voice frame, and the transmission sequence number is the time when the UE receives the at least one fourth voice frame. The sequence number obtained in the sending sequence of the third voice frame.

7、一种承载电路域语音业务的方法，其特征在于，包括： 7. A method for carrying circuit domain voice services, characterized by including:

第二网络设备接收移动交换中心 MSC发送的至少一个第二语音帧，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备； The second network device receives at least one second voice frame sent by the mobile switching center MSC, wherein, The second network device is a network device of the second standard or a network device compatible with the first standard and the second standard;

所述第二网络设备将所述至少一个第一语音帧通过第一接口发送给第 ―网络设备，所述第一网络设备为第一制式的网络设备。 The second network device sends the at least one first voice frame to the first network device through the first interface, and the first network device is a network device of the first standard.

8、根据权利要求 7所述的方法，其特征在于， 8. The method according to claim 7, characterized in that,

AP; AP;

所述第一接口为所述第 ―网络设备与所述第二网络设备之间连接的接口。 The first interface is an interface connected between the first network device and the second network device.

9、根据权利要求 7或 8所述的方法，其特征在于，所述第二网络设备将所述至少一个第二语音帧进行处理，获得至少一个第一语音帧，包括： 9. The method according to claim 7 or 8, characterized in that the second network device processes the at least one second voice frame to obtain at least one first voice frame, including:

所述第二网络设备根据从电路域的移动交换中心 MSC接收到所述至少一个第二语音帧的时间，对所述至少一个第二语音帧设置时间信息，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间； The second network device sets time information for the at least one second voice frame according to the time when the at least one second voice frame is received from the mobile switching center MSC in the circuit domain, and the time information is the second voice frame. The time when the network device receives the at least one second voice frame;

所述第二网络设备将发送序列号和所述时间信息添加在对应的第二语音帧上，获得所述至少一个第一语音帧，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号。 The second network device adds the sending sequence number and the time information to the corresponding second voice frame to obtain the at least one first voice frame, and the sending sequence number is the second network device according to the The sequence number obtained in order of sending at least one first voice frame.

10、根据权利要求 7所述的方法，其特征在于，所述方法还包括：所述第二网络设备接收所述第 ―网络设备发送的至少一个第三语音帧，所述至少一个第三语音帧中包括所述至少一个第三语音帧对应的发送序列号以及时间信息； 10. The method according to claim 7, characterized in that, the method further includes: The second network device receives at least one third voice frame sent by the first network device, and the at least one third voice frame includes a transmission sequence number and time information corresponding to the at least one third voice frame;

所述第二网络设备通过所述至少一个第三语音帧对应的发送序列号以及时间信息对所述至少一个第三语音帧进行去抖动 , 获得至少一个第五语音帧；所述第二网络设备将所述至少一个第五语音帧发送给所述 MSC。 The second network device debounces the at least one third voice frame through the transmission sequence number and time information corresponding to the at least one third voice frame to obtain at least one fifth voice frame; the second network device Send the at least one fifth speech frame to the MSC.

11、一种承载电路域语音业务的装置，其特征在于，所述装置为第一制式的网络设备，所述装置包括： 11. A device for carrying circuit domain voice services, characterized in that the device is a network device of the first standard, and the device includes:

接收模块，用于通过第一接口接收第二网络设备发送的至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送模块，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备；所述发送模块，用于通过第二接口将所述至少一个第一语音帧发送给用户设备 UE。 The receiving module is configured to receive at least one first voice frame sent by the second network device through the first interface, and provide the at least one first voice frame to the sending module, where the second network device is of the second standard. The network device may be a network device compatible with the first standard and the second standard; the sending module is configured to send the at least one first voice frame to the user equipment UE through the second interface.

12、根据权利要求 11所述的装置，其特征在于， 12. The device according to claim 11, characterized in that,

所述装置为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; 所述第二网络设备为所述 UMTS的无线网络控制器 RNC，或者为所述 GSM 的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The device is the base station eNB of the LTE or the wireless access point AP of the WLAN; the second network device is the radio network controller RNC of the UMTS, or the base station controller BSC of the GSM, or It is the unified wireless controller SRC responsible for coordinating resources of multiple standards;

所述第一接口为所述装置与所述第二网络设备之间连接的接口；所述第二接口为所述装置与所述 UE之间的第一制式空口。 The first interface is an interface connected between the device and the second network device; the second interface is a first-standard air interface between the device and the UE.

13、根据权利要求 11或 12所述的装置，其特征在于， 13. The device according to claim 11 or 12, characterized in that,

所述至少一个第一语音帧为所述第二网络设备对接收的至少一个第二语音帧添加时间信息和发送序列号而获得的语音帧，其中，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号，所述至少一个第二语音帧为所述第二网络设备接收电路域的移动交换中心 MSC发送的语音帧。 The at least one first voice frame is at least one second voice frame received by the second network device. A voice frame obtained by adding time information and a sending sequence number to the frame, where the time information is the time when the second network device receives the at least one second voice frame, and the sending sequence number is the second The network device obtains the sequence number according to the order in which the at least one first voice frame is sent. The at least one second voice frame is a voice frame sent by the mobile switching center MSC in the circuit domain that the second network device receives.

14、一种承载电路域语音业务的装置，其特征在于，所述装置为第一制式的网络设备，所述装置包括： 14. A device for carrying circuit domain voice services, characterized in that the device is a network device of the first standard, and the device includes:

接收模块，用于通过第二接口接收用户设备 UE发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给发送模块； A receiving module, configured to receive at least one third voice frame sent by the user equipment UE through the second interface, and provide the at least one third voice frame to the sending module;

所述发送模块，用于通过第一接口将所述至少一个第三语音帧发送给所述第二网络设备，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备。 The sending module is configured to send the at least one third voice frame to the second network device through the first interface, wherein the second network device is a network device of the second standard or is compatible with the third network device. Network equipment of one standard and the second standard.

15、根据权利要求 14所述的装置，其特征在于， 15. The device according to claim 14, characterized in that,

16、根据权利要求 14或 15所述的装置，其特征在于， 16. The device according to claim 14 or 15, characterized in that,

所述至少一个第三语音帧为所述 UE对至少一个第四语音帧添加时间信息和发送序列号而获得的语音帧，所述至少一个第四语音帧为所述 UE 的接入层 AS接收所述 UE的非接入层 NAS发送的语音帧，所述时间信息为所述 UE接收到所述至少一个第四语音帧的时间，所述发送序列号为所述 UE根据所述至少 ― 个第三语音帧的发送先后顺序获取的序列号。 The at least one third voice frame is a voice frame obtained by the UE adding time information and sending a sequence number to at least one fourth voice frame, and the at least one fourth voice frame is the access layer of the UE. The AS receives the voice frame sent by the non-access layer NAS of the UE, the time information is the time when the UE receives the at least one fourth voice frame, and the sending sequence number is the time when the UE receives the at least one fourth voice frame according to the at least ― The sequence number obtained sequentially when sending the third voice frame.

17、一种承载电路域语音业务的装置，其特征在于，所述装置为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备，所述装置包括： 17. A device for carrying circuit domain voice services, characterized in that the device is a network device of the second standard or a network device compatible with the first standard and the second standard, and the device includes:

所述处理模块，用于将所述至少一个第二语音帧进行处理，获得至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送模块； The processing module is configured to process the at least one second voice frame, obtain at least one first voice frame, and provide the at least one first voice frame to the sending module;

所述发送模块，用于将所述至少一个第一语音帧通过第一接口发送给第 ― 网络设备，其中，所述第一网络设备为第一制式的网络设备。 The sending module is configured to send the at least one first voice frame to a first network device through a first interface, where the first network device is a network device of a first standard.

18、根据权利要求 17所述的装置，其特征在于， 18. The device according to claim 17, characterized in that,

AP; AP;

所述装置为所述 UMTS的无线网络控制器 RNC, 或者为所述 GSM的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; 所述第一接口为所述第 ―网络设备与所述装置之间连接的接口。 The device is the radio network controller RNC of the UMTS, or the base station controller BSC of the GSM, or a unified radio controller SRC responsible for coordinating multiple standard resources; the first interface is the No. - the interface connecting the network equipment to the said device.

19、根据权利要求 17或 18所述的装置，其特征在于，所述处理模块，包括： 19. The device according to claim 17 or 18, characterized in that the processing module includes:

设置单元，用于根据从电路域的移动交换中心 MSC接收到所述至少一个第二语音帧的时间，对所述至少一个第二语音帧设置时间信息，并将所述时间信息提供给获得单元，所述时间信息为所述装置接收到所述至少一个第二语音帧的时间； A setting unit configured to set time information for the at least one second voice frame according to the time when the at least one second voice frame is received from the mobile switching center MSC in the circuit domain, and set the time information to the at least one second voice frame. Information is provided to the obtaining unit, and the time information is the time when the device receives the at least one second voice frame;

所述获得单元，用于将发送序列号和所述时间信息添加在对应的第二语音帧上，获得所述至少一个第一语音帧，所述发送序列号为所述装置根据所述至少一个第一语音帧的发送先后顺序获取的序列号。 The obtaining unit is configured to add the transmission sequence number and the time information to the corresponding second voice frame, and obtain the at least one first voice frame, and the transmission sequence number is the device according to the at least one The sequence number obtained in the order in which the first voice frame is sent.

20、根据权利要求 19所述的装置，其特征在于，所述处理模块还包括：去抖动单元， 20. The device according to claim 19, characterized in that the processing module further includes: a debouncing unit,

所述接收模块，还用于接收所述第 ―网络设备发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给所述处理模块中的所述去抖动单元，所述至少一个第三语音帧中包括所述至少一个第三语音帧对应的发送序列号以及时间信息； The receiving module is also configured to receive at least one third voice frame sent by the first network device, and provide the at least one third voice frame to the debouncing unit in the processing module, The at least one third voice frame includes a transmission sequence number and time information corresponding to the at least one third voice frame;

所述去抖动单元，用于通过所述至少一个第三语音帧对应的发送序列号以及时间信息对所述至少一个第三语音帧进行去抖动，获得至少一个第五语音帧，并将所述至少一个第五语音帧提供给所述发送模块；所述发送模块，还用于将所述至少一个第五语音帧发送给所述 MSC。 The de-jittering unit is configured to de-bounce the at least one third voice frame through the transmission sequence number and time information corresponding to the at least one third voice frame, obtain at least one fifth voice frame, and transfer the At least one fifth voice frame is provided to the sending module; the sending module is further configured to send the at least one fifth voice frame to the MSC.

21、一种承载电路域语音业务的装置，其特征在于，所述装置为第一制式的网络设备，所述装置包括： 21. A device for carrying circuit domain voice services, characterized in that the device is a network device of the first standard, and the device includes:

存储器，用于存储包括程序指令的信息； Memory, used to store information including program instructions;

接收器，用于通过第一接口接收第二网络设备发送的至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送器，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备； The receiver is configured to receive at least one first voice frame sent by the second network device through the first interface, and provide the at least one first voice frame to the sender, wherein the second network device is of the second standard The network equipment may be a network equipment compatible with the first standard and the second standard;

所述发送器，用于通过第二接口将所述至少一个第一语音帧发送给用户设备 UE。 The transmitter is configured to send the at least one first voice frame to the user equipment UE through the second interface.

22、根据权利要求 21所述的装置，其特征在于， 22. The device according to claim 21, characterized in that,

所述第一制式为长期演进 LTE网络或者无线局域网 WLAN; 所述第二制式为通用移动通信*** UMTS网络或者全球移动通信*** GSM 网络； The first standard is a long-term evolution LTE network or a wireless local area network WLAN; The second standard is the Universal Mobile Telecommunications System UMTS network or the Global System for Mobile Telecommunications GSM network;

所述装置为所述 LTE的基站 eNB或者所述 WLAN的无线接入点 AP; The device is the LTE base station eNB or the WLAN wireless access point AP;

所述第二网络设备为所述 UMTS的无线网络控制器 RNC，或者为所述 GSM 的基站控制器 BSC, 或者为负责对多个制式资源进行协调的统一无线控制器 SRC; The second network device is the radio network controller RNC of the UMTS, or the base station controller BSC of the GSM, or the unified radio controller SRC responsible for coordinating resources of multiple standards;

23、根据权利要求 21或 22所述的装置，其特征在于， 23. The device according to claim 21 or 22, characterized in that,

所述至少一个第一语音帧为所述第二网络设备对接收的至少一个第二语音帧添加时间信息和发送序列号而获得的语音帧，其中，所述时间信息为所述第二网络设备接收到所述至少一个第二语音帧的时间，所述发送序列号为所述第二网络设备根据所述至少一个第一语音帧的发送先后顺序获取的序列号，所述至少一个第二语音帧为所述第二网络设备接收电路域的移动交换中心 MSC发送的语音帧。 The at least one first voice frame is a voice frame obtained by adding time information and sending a sequence number to the at least one second voice frame received by the second network device, where the time information is the second network device. The time when the at least one second voice frame is received, the sending sequence number is a sequence number obtained by the second network device according to the sending sequence of the at least one first voice frame, the at least one second voice frame The frame is a voice frame sent by the mobile switching center MSC received by the second network device in the circuit domain.

24、一种承载电路域语音业务的装置，其特征在于，所述装置为第一制式的网络设备，所述装置包括： 24. A device for carrying circuit domain voice services, characterized in that the device is a network device of the first standard, and the device includes:

接收器，用于通过第二接口接收用户设备 UE发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给发送器； A receiver configured to receive at least one third voice frame sent by the user equipment UE through the second interface, and provide the at least one third voice frame to the sender;

所述发送器，用于通过第一接口将所述至少一个第三语音帧发送给所述第二网络设备，其中，所述第二网络设备为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备。 The transmitter is configured to send the at least one third voice frame to the second network device through the first interface, wherein the second network device is a network device of the second standard or is compatible with the third network device. Network equipment of one standard and the second standard.

25、根据权利要求 24所述的装置，其特征在于， 25. The device according to claim 24, characterized in that,

26、根据权利要求 24或 25所述的装置，其特征在于， 26. The device according to claim 24 or 25, characterized in that,

27、一种承载电路域语音业务的装置，其特征在于，所述装置为第二制式的网络设备或者为兼容所述第一制式和所述第二制式的网络设备，所述装置包括： 27. A device for carrying circuit domain voice services, characterized in that the device is a network device of the second standard or a network device compatible with the first standard and the second standard, and the device includes:

接收器，用于接收移动交换中心 MSC发送的至少一个第二语音帧，并将所述至少一个第二语音帧提供给处理器； A receiver configured to receive at least one second voice frame sent by the mobile switching center MSC, and provide the at least one second voice frame to the processor;

所述处理器，用于将所述至少一个第二语音帧进行处理，获得至少一个第一语音帧，并将所述至少一个第一语音帧提供给发送器； The processor is configured to process the at least one second voice frame, obtain at least one first voice frame, and provide the at least one first voice frame to the transmitter;

所述发送器，用于将所述至少一个第一语音帧通过第一接口发送给第 ―网络设备，其中，所述第一网络设备为第一制式的网络设备。 The transmitter is configured to send the at least one first voice frame to a first network device through a first interface, where the first network device is a network device of a first standard.

28、根据权利要求 27所述的装置，其特征在于，所述第一制式为长期演进 LTE网络或者无线局域网 WLAN; 28. The device according to claim 27, characterized in that, The first standard is a long-term evolution LTE network or a wireless local area network WLAN;

AP; AP;

29、根据权利要求 27或 28所述的装置，其特征在于， 29. The device according to claim 27 or 28, characterized in that,

所述处理器，具体用于根据从电路域的移动交换中心 MSC接收到所述至少一个第二语音帧的时间，对所述至少一个第二语音帧设置时间信息，将发送序列号和所述时间信息添加在对应的第二语音帧上，获得所述至少一个第一语音帧，所述发送序列号为所述第二网络设备根据所述至少一个每个第一语音帧的发送先后顺序获取的序列号，所述时间信息为所述装置接收到所述至少一个第二语音帧的时间。 The processor is specifically configured to set time information for the at least one second voice frame according to the time when the at least one second voice frame is received from the mobile switching center MSC in the circuit domain, and send the sequence number and the The time information is added to the corresponding second voice frame to obtain the at least one first voice frame. The transmission sequence number is obtained by the second network device according to the transmission sequence of each of the at least one first voice frame. sequence number, and the time information is the time when the device receives the at least one second voice frame.

30、根据权利要求 29所述的装置，其特征在于， 30. The device according to claim 29, characterized in that,

所述接收器，还用于接收所述第 ―网络设备发送的至少一个第三语音帧，并将所述至少一个第三语音帧提供给所述处理器，所述至少一个第三语音帧中包括所述至少一个第三语音帧对应的发送序列号以及时间信息； The receiver is also configured to receive at least one third voice frame sent by the first network device, and provide the at least one third voice frame to the processor, in which the at least one third voice frame Includes the transmission sequence number and time information corresponding to the at least one third voice frame;

所述处理器，还用于通过所述至少一个第三语音帧对应的发送序列号以及时间信息对所述至少一个第三语音帧进行去抖动，获得至少一个第五语音帧，并将所述至少一个第五语音帧提供给所述发送器； The processor is also configured to debounce the at least one third voice frame through the transmission sequence number and time information corresponding to the at least one third voice frame, obtain at least one fifth voice frame, and transfer the At least one fifth speech frame is provided to the transmitter;

所述发送器，还用于将所述至少一个第五语音帧发送给所述 MSC。 The transmitter is also configured to send the at least one fifth voice frame to the MSC.