WO2014111060A1 - 一种群组会话的方法、装置和系统 - Google Patents

一种群组会话的方法、装置和系统 Download PDF

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Publication number
WO2014111060A1
WO2014111060A1 PCT/CN2014/070988 CN2014070988W WO2014111060A1 WO 2014111060 A1 WO2014111060 A1 WO 2014111060A1 CN 2014070988 W CN2014070988 W CN 2014070988W WO 2014111060 A1 WO2014111060 A1 WO 2014111060A1
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WIPO (PCT)
Prior art keywords
address information
session
user
calling
called
Prior art date
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PCT/CN2014/070988
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English (en)
French (fr)
Inventor
彭程晖
陈育华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14740399.2A priority Critical patent/EP2942989B1/en
Priority to KR1020157022268A priority patent/KR101779867B1/ko
Publication of WO2014111060A1 publication Critical patent/WO2014111060A1/zh
Priority to US14/805,200 priority patent/US9801031B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10Push-to-Talk [PTT] or Push-On-Call services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/64Routing or path finding of packets in data switching networks using an overlay routing layer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40Support for services or applications
    • H04L65/4061Push-to services, e.g. push-to-talk or push-to-video
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80Responding to QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/121Wireless traffic scheduling for groups of terminals or users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/186Processing of subscriber group data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/25Mapping addresses of the same type

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and apparatus for group conversation services. Background technique
  • OpenFlow Software Defined Network
  • the traditional SDN is a separate processing for carrying and controlling the bearer and the control above the IP layer or the IP layer, that is, the improvement is mainly at the core network level, and the wireless SDN is a control and bearer separation scheme for the radio access network.
  • the network architecture of the wireless SDN is shown in Figure 1.
  • the wireless SDN separates the control plane and the user plane in the wireless network entity, and implements the radio access bearer control based on the OpenRadio protocol and the network layer and data forwarding control based on the OpenCore protocol.
  • the wireless SDN includes a control plane and a user plane entity, wherein the control plane includes an SNC (Single Network Controller) and a cN B (Control-plane of Node B); the user plane includes a GR (Gateway Router, Gateway) Router) and uN B (User-plane of Node B).
  • the SNC is a centralized network control point, and controls the data flow routing of the GR through the OpenCore protocol; the cN B implements the wireless resource management of the wireless parameter control of the uN B through the OpenRadio protocol.
  • the group session service refers to a multi-person session in the current network, such as PoC (Push to talk over Cellular), IM (Instant Message), video conference, and the like. Take the PoC service as an example.
  • the PoC service is 0MA (Open Mobile Architecture) and 3gpp (The 3rd Generation Partnership Project, A push-to-talk service based on the public cellular mobile communication network defined by the 3rd Generation Partnership Project), which implements a cluster-like communication method through half-duplex VoIP technology.
  • the user only needs to press a button like a walkie-talkie without using a button. By dialing, you can quickly and directly perform point-to-multipoint instant communication with multiple users anywhere.
  • the PoC client is responsible for logging in to the PoC service, initiating, participating, and terminating PoC sessions, encoding, decoding, and receiving PoC voice packets.
  • the PoC server is responsible for the network functions of the application layer in the PoC service. It is divided into Control PoC Function (CPF, Controlling PoC Function) and PoC Function (PPF, Participating PoC Function).
  • CPF Control PoC Function
  • PPF Participating PoC Function
  • the CPF part is responsible for centralized processing of PoC sessions, centralized media distribution, session rights arbitration and speaker identification, SIP session processing, management of participant information and media information, centralized charging support, media encoding format translation, etc.
  • PoC session processing user plane adaptation, relaying Talk Burst control information between the PoC client and the Controlling PoC server, SIP session processing, protocol execution for incoming PoC sessions, provisioning session accounting reports, provision of sessions Protocol negotiation of burst sequence, storage of existing answer mode and inbound PoC session prohibition parameter selection of PoC client.
  • the existing group session service signaling and data need to be forwarded by the application server, the server has a heavy load, the implementation cost is high, and the service data delay is large, especially in the case of one-to-many sessions.
  • PoC session services need to be implemented through a private network to achieve low latency. Deploying a private network requires a large amount of deployment cost for the service provider.
  • the invention provides a group WLAN service based on wireless SDN, which solves the problem of large delay and high cost of the existing group session service by separating the control signal of the service from the data stream.
  • a method of group conversation including:
  • the calling party gateway router GR to which it belongs;
  • the service information is used by the called party SNC to generate a second routing rule and sent to the called party GR to which the called user belongs;
  • the party GR is forwarded to the called user via the called party GR.
  • the establishing a group session includes:
  • the first call invitation message is used to invite the called party user to perform a group session;
  • the service information includes a user identifier of the calling user and the called user, address information of the calling user and the called user, and group meeting address information; wherein, the calling party and the called party The user ID of the calling party, the address information of the calling user and the called user, and the group session address information are used to formulate the first routing rule and the second routing rule.
  • the first routing rule includes: if the source address of the service data is the address of the calling user, and the destination address is the group session address, changing the source address of the service data to the group session address, The address is changed to the address of the called user;
  • the second routing rule includes: if the source address of the service data is the address of the called user, and the destination address is the group session address, changing the source address of the service data to the group session address, The address is changed to the address of the calling user.
  • the session termination message includes a session identifier
  • the session termination message includes a session identifier.
  • a method of group conversation including:
  • the routing rule includes: if the source address of the service data is the address of the calling user, and the destination address is the group session address, the source address of the service data is changed to the group session address, and the destination address is changed. Is the address of the called user.
  • a group session system including a PoC server, a single network controller SNC, a gateway router GR:
  • the PoC server is configured to: establish a group session, generate service information according to the group session; send the service information to the SNC; send a message for granting a call right to the calling user, and notify the calling user to send Service data, the service data sent by the calling user is forwarded to the called user according to the routing rule by the GR;
  • the SNC is configured to receive the service information, and generate the routing rule according to the service information, and send the routing rule to the calling party GR;
  • the GR is configured to receive a routing rule sent by the SNC, receive service data sent by the calling user, and forward the service data to the GR to which the called user belongs according to the routing rule, and then the called party The GR to which the user belongs is sent to the called user.
  • the service information includes a user identifier of the calling user and the called user, address information of the calling user and the called user, and group session address information; wherein, the calling party and the called party The user ID of the calling party, the address information of the calling user and the called user, and the group session address information are used to formulate the routing rule.
  • the routing rules include:
  • the PoC server is further configured to: when detecting a timeout, or receiving an end request message of both parties, send a session termination message to the calling party SNC, where the session termination message includes a session identifier;
  • the calling party SNC is further configured to: receive a session termination message sent by the PoC server, and send a delete routing rule message to the calling party GR;
  • the calling party GR is further configured to delete the routing rule of the session according to the deleted routing rule message sent by the calling party SNC.
  • a device for group conversation comprising:
  • a group session creation unit configured to establish a group session
  • a service information generating unit configured to generate service information according to the group session
  • a sending unit configured to send the service information to a calling party SNC to which the calling user belongs, where the service information is used by the calling party SNC to generate a first routing rule and send the calling party to the calling party to which the calling user belongs Transmitting the service information to the called party SNC to which the called user belongs, the service information is used by the called party SNC to generate a second routing rule and sent to the called party GR;
  • the sending unit is further configured to send a message for granting a call right to the calling user, to notify the calling user to send service data, and the service data is forwarded by the calling party GR according to the first routing rule.
  • the called party GR is forwarded to the called party via the called party GR.
  • the group session creation unit includes:
  • a receiving module configured to receive a first call invitation message sent by the calling user, where the first call invitation message is used to invite the called party user to perform a group session;
  • a group session address generating module configured to generate group session address information
  • a sending module configured to send a second call invitation message to the called user, where the second call invitation message carries the group session address information, and send a call accept message to the calling user, where the call accepts The message carries the group session address information;
  • the receiving module is further configured to receive a call accept message sent by the called party.
  • the service information includes a user identifier of the calling user and the called user, address information of the calling user and the called user, and group meeting address information; wherein, the calling party and the called party The user ID of the calling party, the address information of the calling user and the called user, and the group session address information are used to formulate the first routing rule and the second routing rule.
  • the first routing rule includes: if the source address of the service data is the address of the calling user, and the destination address is the group session address, changing the source address of the service data to the group session address, The address is changed to the address of the called user;
  • the second routing rule includes: if the source address of the service data is the address of the called user, and the destination address is the group session address, changing the source address of the service data to the group session address, The address is changed to the address of the calling user.
  • the group session device further includes:
  • a session termination unit configured to: when a timeout is detected, or an end session request message sent by the calling user and the called user is received,
  • a group session device includes:
  • a receiving unit configured to receive a routing rule sent by a calling party SNC to which the calling user belongs, where the routing rule is generated by the calling party SNC according to service information from the PoC server, where the service information is based on the established group session Generate
  • a forwarding unit configured to forward the service data from the calling user to the called party according to the routing rule.
  • the routing rules include:
  • the source address of the service data is the address of the calling user, and the destination address is the group session address
  • the source address of the service data is changed to the group session address, and the destination address is changed to the called user. the address of.
  • the invention discloses a method, device and system for group conversation service based on wireless software to define a network.
  • the service control signaling is separated from the service data, the demand for the PoC server is less, and the service call flow is less changed.
  • the user does not need additional requirements, simplifies the group call service control logic, reduces the burden on the PoC server, and reduces the data delay of the group session service. In the case of multi-party sessions, the delay is more obvious, and the user QoE can be effectively improved.
  • FIG. 1 is a schematic diagram of a network architecture of a wireless SDN
  • FIG. 2 is a flowchart of a group session according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a group session according to an embodiment of the present invention.
  • FIG. 4 is a signaling diagram of a group session service according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a group session system according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a group session apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a group session apparatus according to an embodiment of the present invention.
  • Embodiment 1 the technical solutions of the embodiments of the present invention can be applied to various group session services, such as PoC (Push to talk over Cellular), IM (Instant Message), video conference, and the like. Exemplary embodiments of the present invention are described in more detail below in greater detail.
  • PoC Push to talk over Cellular
  • IM Insert Message
  • video conference video conference, and the like. Exemplary embodiments of the present invention are described in more detail below in greater detail.
  • Embodiment 1 the technical solutions of the embodiments of the present invention can be applied to various group session services, such as PoC (Push to talk over Cellular), IM (Instant Message), video conference, and the like. Exemplary embodiments of the present invention are described in more detail below in greater detail.
  • Embodiment 1 the technical solutions of the embodiments of the present invention can be applied to various group session services, such as PoC (Push to talk over Cellular), IM (Instant Message), video conference, and the like.
  • FIG. 2 is a flowchart of a group session according to an embodiment of the present disclosure, which specifically includes:
  • the PoC server receives the first call invitation message sent by the calling user, and generates group session address information.
  • the first call invitation message is used to invite the called party user to perform a group session.
  • the PoC server sends a second call invitation message to the called user, where the second call invitation message carries the group session address information, and sends a call accept message to the calling user, where The call accept message carries the group session address information;
  • the PoC server After receiving the call invitation message sent by the calling user, the PoC server generates group session address information, and then sends a second call invitation message to all called users, when receiving at least A group acceptance session is established by a call acceptance message sent by a called user.
  • the service information is sent to the called party SNC, where the service information is used to be
  • the calling party SNC generates a second routing rule and sends it to the called party GR.
  • the service information includes a user identifier of the calling user and the called user, address information of the calling user and the called user, and group address information; wherein, the user identifier of the calling party and the called party, and the calling user And the address information of the called user and the group session address information are used to formulate the first routing rule and the second routing rule.
  • the first routing rule includes: if the source address of the service data is the address of the calling user, and the destination address is the group session address, changing the source address of the service data to the group session address, The destination address is changed to the address of the called user.
  • the second routing rule includes: if the source address of the service data is the address of the called user, and the destination address is the group session address, the source address of the service data is changed to the group session address, and the destination address is changed. Is the address of the calling user.
  • the PoC server sends a call permission message to the calling user, and sends a call right occupation message to the called user, and the calling user sends the service data to the calling party GR, and the calling party GR forwards the service data according to the first routing rule.
  • the called party GR then sends data to the called user according to the second routing rule.
  • the P 0 C server After receiving the call release message sent by the calling user, the P 0 C server sends a call right idle message to the calling user and the called user; the PoC server receives the call right request message sent by the called user, and sends the call right to the called user. The message is granted, and the call occupying message is sent to the calling user, and the called user sends the service data to the calling user. S204, terminating the session, and deleting the routing rule.
  • a session termination message is sent to the calling party SNC, so that the calling party SNC sends the deletion first to the calling party GR. Routing the rule message, so that the calling party GR deletes the first routing rule; wherein, the session termination message includes a session identifier; and sends a session termination message to the called party SNC, so that the called party SNC sends the deletion to the called party GR And routing the rule message, so that the called party GR deletes the second routing rule; where the session termination message includes the session identifier.
  • the group session method provided by the embodiment of the present invention separates the service data from the service data by using the control signaling of the service, and reduces the burden on the PoC server.
  • Embodiment 2
  • FIG. 3 is a flowchart of a group session according to an embodiment of the present disclosure, which specifically includes:
  • the PoC server receives the call invitation message sent by the calling user, generates group session address information, and sends a call invitation message carrying the group session address information to the called user, and sends the group session address to the calling user.
  • the message accept message of the message establishes a group session.
  • the calling party SNC receives the service information sent by the PoC server, and generates a routing rule according to the service information, where the routing rule includes: if the source address of the service data is the address of the calling user, and the destination address is the group session. The address is changed to the source session address of the service data to the group session address, and the destination address is changed to the address of the called user.
  • the calling party GR receives the routing rules sent by the calling party SNC.
  • S302 Receive service data of the calling user, and forward the service data to the called party according to the routing rule.
  • the PoC server When the PoC server detects the timeout, or receives the end session request message sent by the calling user and the called user, sends a session termination message to the calling party SNC, so that the calling party SNC sends a delete routing rule message to the calling party GR.
  • the calling party GR deletes the routing rule, where the session termination message includes a session identifier.
  • the group session method provided by the embodiment of the present invention separates the service data by the control signaling of the service, changes the service call flow less, simplifies the group session control logic, and reduces the data delay of the group session service in the multi-party session. In this case, the delay is more obvious, and the user can be effectively improved.
  • FIG. 4 is a signaling diagram of a group session service according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
  • the first part, the business session is initiated.
  • the calling user sends a call invitation message to the PoC server to initiate a group session.
  • the PoC server After receiving the call invitation message, the PoC server generates a group session address information, and sends a call invitation message carrying the group session address information to the called user.
  • the calling user sends a call invitation acceptance message carrying the group conference address information; after receiving the acceptance message of the called user, the PoC server performs the second part operation.
  • the second part, routing decisions and rules are issued.
  • the PoC server sends service information to the calling party SNC to which the calling user belongs, where the service information includes the user identity of the calling party and the called party, address information of the calling party and the called party, media information, session identifier, and group.
  • the group address information is used by the calling party SNC to generate a first routing rule.
  • the address information includes an IP address, a port number, and a MAC address
  • the media information includes an encoding format.
  • the calling party SNC generates a first routing rule according to the service information, and sends the first routing rule to the calling party GR to which the calling user belongs.
  • the first routing rule includes:
  • the data source address is changed to the group session address, and the destination address is changed to the address of the called user.
  • the PoC server sends service information to the called party SNC to which the called user belongs, where the service information includes the user identifier of the calling party and the called party, address information of the calling party and the called party, media information, session identifier, and group Group session address information.
  • the called party SNC generates a second routing rule according to the service information, and sends the second routing rule to the calling party GR to which the calling user belongs.
  • the second routing rule includes: If the source address of the data is the address of the called user and the destination address is the group session address, the source address of the data is changed to the group session address, and the destination address is changed to the address of the calling user.
  • the third part the user session.
  • the PoC server grants the calling right to the calling user, and the service data sent by the calling user is forwarded to the called party GR according to the first routing rule by the calling party GR, and then sent by the called party GR to the called party.
  • the calling user sends a call release message to the PoC server, and the PoC server sends a call right idle message to the calling party and the called party.
  • the calling party and the called party are in the idle state of the call right; the called user sends the call right request message, PoC
  • the server sends a floor grant message to the called user, and sends a call rights occupation message to the calling user.
  • the called user sends the service data to the calling party GR via the called party GR, and then the calling party GR according to the first routing rule.
  • the called user sends a call release message to the PoC server, and the PoC server sends a call right idle message to the calling user and the called user. At this time, the calling user and the called user are in the idle state of the call right.
  • the session ends and the routing rules are deleted.
  • the PoC server When the PoC server detects the timeout, or the PoC server receives the end request message of the calling party, the PoC server sends a session termination message to the calling party SNC and the called party SNC, and the session termination message includes the session identifier.
  • the PoC server monitors the session, and when the session is idle for a certain period of time and the session request from the parties is not received, the timeout is determined.
  • the calling party SNC sends a delete routing rule message to the calling party GR, so that the calling party GR deletes the routing rule related to the session, and the called party SNC sends a delete routing rule message to the called party GR, so that the called party GR deletes the message. Session-related routing rules.
  • the group session method provided by the embodiment of the present invention separates the service data from the service data by using the control signaling of the service, has less requirements for the PoC server, and has fewer changes to the service call process, and can provide no additional requirements for the user, simplifying the group call.
  • the service control logic reduces the burden on the PoC server and reduces the data delay of the group session service. In the case of a multi-party session, the delay is more obvious, and the user QoE can be effectively improved.
  • This embodiment provides a method for a one-to-many group session, including: The first part, the business session is initiated.
  • the difference is that after receiving the call invitation message of the calling user, the PoC server generates group session address information, and sends a call invitation message carrying the group meeting address information to all called users. Sending a call invitation accept message carrying the group session address information to the calling user; after waiting for at least one called user to return the call accept message, the second part operation is performed.
  • the second part, routing decisions and rules are issued.
  • the Nth routing rule includes:
  • the source address of the data is the address of the Nth user and the destination address is the group session address
  • the data is copied in multiple copies, the source address of the data is changed to the group session address, and the destination address of each data is changed to other The address of the user participating in the group session;
  • the Nth SNC sends the Nth routing rule to the Nth user party to which the Nth user belongs.
  • the third part the user session.
  • the PoC server sends a call grant message to the calling user.
  • the GR to which the calling user belongs will copy multiple copies of the service data of the user in the future, and forward it to the GR of the other called users in the group session according to the routing rule.
  • the GR of each called user is sent to the corresponding called user.
  • the session ends and the routing rules are deleted.
  • the PoC server when the PoC server detects the timeout, or the PoC server receives the end session request message of the session parties, the PoC server notifies the SNC to delete the session to which the user belongs in the group session, and the SNC notifies the corresponding GR to delete the session. Routing rules.
  • the one-to-many group session method provided by the embodiment of the present invention separates the service data from the service data by the control signaling of the service, and reduces the data delay of the group call service. In the case of a multi-party session, the delay is obviously reduced, and the user can be effectively improved. QoE. Embodiment 5
  • FIG. 5 is a schematic diagram of a system for group conversation according to an embodiment of the present invention, as shown in FIG. include:
  • a PoC server 3 configured to establish a session connection, generate service information according to the session connection, send the service information to the single network controller SNC2, send a message granting a floor to the calling user, and notify the calling user to send the service.
  • Data, the service data sent by the calling user is forwarded to the called user according to the routing rule by the gateway router GR1;
  • the service information includes a user identifier of the calling user and the called user, address information of the calling user and the called user, and group session address information; the calling user and the The user identifier of the calling user, the address information of the calling user and the called user, and the group session address information are used to formulate the routing rule;
  • the routing rule includes: if the source address information of the service data is the address information of the calling user, and the destination address is the group session address information, changing the source address information of the service data to the group Group session address information, the destination address information is changed to the address information of the called user.
  • the PoC server 3 is further configured to: when detecting a session connection timeout, or receiving an end request message of the two parties, send a session termination message to the SNC2 to which the calling user belongs, where the session termination message includes a session identifier;
  • the SNC2 is configured to receive the service information, and generate the routing rule according to the service information, and send the routing rule to the GR;
  • the SNC2 is further configured to: receive a session termination message sent by the PoC server 3, and send a delete routing rule message to the GR1;
  • the GR1 is configured to receive the routing rule sent by the SNC, receive the service data sent by the calling user, and forward the service data to the called user according to the routing rule;
  • the GR1 is further configured to delete the routing rule of the session according to the deleted routing rule message sent by the SNC2.
  • the group session system provided by the embodiment of the present invention separates the service data from the service data by using the control signaling of the service, and has fewer requirements for the PoC server, and has fewer changes to the service call process, so that there is no additional requirement for the user, and the group call is simplified.
  • the service control logic reduces the burden on the PoC server and reduces the data delay of the group session service, which can effectively improve the user QoE.
  • FIG. 6 is a schematic diagram of an apparatus for group conversation according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • a session connection establishing unit 301 configured to establish a session connection
  • the session connection establishing unit includes:
  • the receiving module 301 1 is configured to receive a first call invitation message sent by the calling user, where the first call invitation message is used to invite the called user to perform a group session;
  • the group session address generating module 3012 is configured to generate group session address information
  • the sending module 3013 is configured to send a second call invitation message to the called user, where the second call invitation message carries the group Group session address information; sending a call accept message to the calling user, where the call accept message carries the group session address information;
  • the receiving module is further configured to receive a call accept message sent by the called user.
  • the service information generating unit 302 is configured to generate service information according to the session connection.
  • the service information includes a user identifier of the calling user and the called user, the calling user, and the called party.
  • the first routing rule and the second routing rule are formulated.
  • the first routing rule includes: if the source address information of the service data is the address information of the calling user, and the destination address information is the group session address information, changing the source address information of the service data to The group session address information, the destination address information is changed to the address information of the called user;
  • the second routing rule includes: if the source address information of the service data is the address information of the called user, and the destination address information is the group session address information, changing the source address information of the service data to the group The group session address information is changed, and the destination address information is changed to the address information of the calling user.
  • the sending unit 303 is configured to send the service information to the SNC to which the calling user belongs, where the service information is used by the SNC to which the calling user belongs to generate the first routing rule and send the GR to the GR to which the calling user belongs.
  • the SNC to which the user belongs is sent the service information, and the service information is used by the SNC to which the called user belongs to generate a second routing rule and sent to the GR to which the called user belongs.
  • the sending unit is further configured to: send a message for granting a call right to the calling user, and notify the calling user to send service data, where the service data is based on the first route of the GR to which the calling user belongs.
  • the rule is forwarded to the GR to which the called user belongs, and then forwarded to the called user by the GR to which the called user belongs.
  • the session termination unit 304 is configured to: when detecting a timeout, or receiving an end session request message sent by the calling user and the called user,
  • the group session device provided by the embodiment of the present invention separates the service data from the service data by using the control signaling of the service, has less requirements for the PoC server, and has fewer changes to the service call process, so that no additional requirements are needed for the user, and the group call is simplified.
  • the service control logic reduces the burden on the PoC server and reduces the data delay of the group session service, which can effectively improve the user QoE.
  • FIG. 7 is a schematic diagram of an apparatus for a group session according to an embodiment of the present disclosure, which specifically includes: a receiving unit 01, configured to receive a routing rule sent by an SNC to which a calling user belongs, where the routing rule belongs to the calling user
  • the SNC is generated according to service information from the PoC server, and the service information is generated according to the established session connection;
  • the forwarding unit 102 is configured to forward the service data from the calling user to the called user according to the routing rule.
  • the routing rule includes: if the source address of the service data is the address information of the calling user, and the destination address information is the group session address information, changing the source address information of the service data to the group session The address information, the destination address information is changed to the address information of the called user.
  • the group session device provided by the embodiment of the present invention separates the service data from the service data by using the control signaling of the service, has less requirements for the PoC server, and has less changes to the service call process, and can provide no additional requirements for the user, simplifying the group call.
  • the service control logic reduces the burden on the PoC server and reduces the data delay of the group session service. In the case of a multi-party session, the delay is more obvious, and the user QoE can be effectively improved.

Abstract

本发明涉及一种基于无线软件定义网络的群组会话业务的方法、装置及系统,涉及无线通信领域,尤其涉及一种群组会话业务。通过业务的控制信令与业务数据分离,对移动一键通(PoC)服务器需求较少,对业务呼叫流程改动较少,可以做到对用户无额外需求,简化群组通话业务控制逻辑,降低PoC服务器负担,降低群组会话业务数据时延,在多方会话的情况下时延降低更明显,能有效改善用户QoE。

Description

一种群组会话的方法、 装置和系统
技术领域 本发明涉及无线通信领域, 尤其涉及一种群组会话业务的方法和装 置。 背景技术
随着互联网的飞速发展, 互联网的规模越来越庞大、承载的应用越来 越复杂, 人们对互联网的可控性要求越来越高。 针对以上问题, 美国斯坦 福大学 clean slate 研究组提出了软件定义网络 ( Software Defined Network, SDN ) 的网络架构, 它的核心技术 Open Flow通过将网络设备 控制面和数据面分离, 实现了网络流量的灵活控制。 OpenFlow是一种交 换技术, 使用 OpenFlow协议建立软件定义网络, 可以将网络作为一个整 体而不是无数的独立设备进行管理与控制。
传统的 SDN是在 IP层或 IP层以上运行承载和控制的分离处理, 即主要是对核心网层面的改进, 而无线 SDN则是针对无线接入网络的控 制和承载分离方案。
无线 SDN 的网络架构如图 1 所示, 无线 SDN将无线网络实体中的 控制面和用户面分开, 实现基于 OpenRadio协议的无线接入承载控制和 基于 OpenCore协议的网络层和数据转发控制。 无线 SDN包括控制面和 用户面实体, 其中控制面包括 SNC ( Single Network Controller, 单一网 络控制器) 和 cN B ( Control-plane of Node B , 基站控制面); 用户面包 括 GR ( Gateway Router, 网关路由器 )和 uN B ( User-plane of Node B , 基站用户面)。 SNC是集中网络控制点, 通过 OpenCore协议控制 GR的 数据流路由; cN B通过 OpenRadio协议实现对 uN B的无线参数控制的 无线资源管理。
群组会话业务指的是目前网络中的多人会话,例如 PoC( Push to talk over Cellular, 移动一键通)、 IM ( Instant Message , 即时消息)、 视频 会议等。以 PoC业务为例, PoC业务是 0MA( Open Mobile Architecture , 开放移动体系结构)、 3gpp ( The 3rd Generation Partnership Project, 第三代合作伙伴计划)定义的一种基于公众蜂窝移动通信网络的即按即说 业务, 通过半双工 VoIP技术实现类似集群会话的通信方式, 用户只需要 像使用对讲机一样按一个键而无需进行拨号就可以快捷直接的与任何地 方的多个用户进行点对多点的即时通信。
PoC中各网元功能为:
PoC Client, 负责登陆 PoC业务,发起、 参加和终止 PoC会话, PoC 语音包的编解码和发送接收等。
PoC服务器, 负责 PoC业务中应用层的网络功能, 分为控制 PoC功 能( CPF , Controlling PoC Function )和加入 PoC功能( PPF , Participating PoC Function )。 CPF部分负责 PoC会话的集中处理、 媒体的集中分配、 会话权仲裁和发言人身份识别、 SIP会话处理、 与会人员信息和媒体信息 的管理、 集中计费支持、 媒体编码格式翻译等; PPF部分负责 PoC会话 处理、 用户面适配、 在 PoC客户端和 Controlling PoC服务器之间中继 Talk Burst的控制信息、 S I P会话处理、为进入的 PoC会话提供协议执行、 提供会话方的计费报告、 提供会话突发序列的协议协商、 存储现有的应答 模式和 PoC客户端的呼入 PoC会话禁止参数选择。
现有的群组会话业务信令与数据均需经过应用服务器转发,服务器负 担重, 实现成本高, 同时导致业务数据延时较大, 尤其是一对多会话的情 况下时延更大。 PoC 会话业务需要通过专网来实现低时延, 部署专网需 要业务提供商花费大量的部署成本。
发明内容
本发明提供一种基于无线 SDN 的群组会话业务,通过业务的控制信 令与数据流分离来解决现有群组会话业务时延较大和成本过高的问题。
为达到上述目的, 本发明实施例提供了以下技术方案:
一种群组会话的方法, 包括:
建立群组会话,根据所述群组会话生成业务信息;
向主叫用户所属的主叫方单一网络控制器 SNC发送所述业务信息, 所述业务信息用于所述主叫方 SNC生成第一路由规则并发送给主叫用户 所属的主叫方网关路由器 GR;
向被叫用户所属的被叫方 SNC发送所述业务信息, 所述业务信息用 于所述被叫方 SNC 生成第二路由规则并发送给被叫用户所属的被叫方 GR;
向所述主叫用户发送授予通话权的消息,通知所述主叫用户发送业务 数据,所述主叫用户发送的业务数据经所述主叫方 G R根据所述第一路由 规则转发给被叫方 GR , 再经所述被叫方 GR转发给所述被叫用户。
所述建立群组会话包括:
接收主叫用户发送的第一呼叫邀请消息, 生成群组会话地址信息; 所 述第一呼叫邀请消息用于邀请被叫方用户进行群组会话;
向所述被叫用户发送第二呼叫邀请消息,所述第二呼叫邀请消息携带 有所述群组会话地址信息; 向所述主叫用户发送呼叫接受消息, 所述呼叫 接受消息携带有所述群组会话地址信息;
接收所述被叫方发送的呼叫接受消息, 建立所述群组会话。
所述业务信息包括所述主叫用户及所述被叫用户的用户标识、所述主 叫用户及所述被叫用户的地址信息、 群组会地址信息; 其中, 所述主叫方 及被叫方的用户标识、 所述主叫用户和被叫用户的地址信息、 所述群组会 话地址信息用于制定所述第一路由规则和所述第二路由规则。
所述第一路由规则包括:如果业务数据的源地址为所述主叫用户的地 址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所述群组 会话地址, 目的地址改为所述被叫用户的地址;
所述第二路由规则包括:如果业务数据的源地址为所述被叫用户的地 址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所述群组 会话地址, 目的地址改为所述主叫用户的地址。
当检测到超时,或接收到所述主叫用户和所述被叫用户发送的结束会 话请求消息, 则
向所述主叫方 SNC发送会话终止消息, 令所述主叫方 SNC 向所述 主叫方 GR发送删除第一路由规则消息,以使所述主叫方 GR删除第一路 由规则; 其中, 所述会话终止消息包括会话标识;
向所述被叫方 SNC发送会话终止消息, 令所述被叫方 SNC 向所述 被叫方 GR发送删除第二路由规则消息,以使所述被叫方 GR删除第二路 由规则; 其中, 所述会话终止消息包括会话标识。
一种群组会话的方法, 包括:
接收主叫方 SNC发送的路由规则, 所述路由规则由所述主叫方 SNC 根据来自 PoC服务器的业务信息生成, 所述业务信息依据建立的群组会 话生成;
接收主叫用户的业务数据,根据所述路由规则将所述业务数据转发至 被叫方。
所述路由规则包括: 如果业务数据的源地址为所述主叫用户的地址, 目的地址为所述群组会话地址,则将业务数据的源地址改为所述群组会话 地址, 目的地址改为所述被叫用户的地址。
一种群组会话的系统, 包括 PoC服务器, 单一网络控制器 SNC , 网 关路由器 GR:
所述 PoC服务器用于, 建立群组会话, 根据所述群组会话生成业务 信息; 向所述 SNC发送所述业务信息; 向主叫用户发送授予通话权的消 息, 通知所述主叫用户发送业务数据, 所述主叫用户发送的业务数据经所 述 GR根据路由规则转发至被叫用户;
所述 SNC用于, 接收所述业务信息, 并根据所述业务信息生成所述 路由规则并发送给所述主叫方 GR;
所述 GR用于, 接收所述 SNC发送的路由规则, 接收主叫用户发送 的业务数据,并根据所述路由规则将所述业务数据转发给被叫用户所属的 GR , 再由所述被叫用户所属的 GR发送给被叫用户。
所述业务信息包括所述主叫用户及所述被叫用户的用户标识、所述主 叫用户及所述被叫用户的地址信息、 群组会话地址信息; 其中, 所述主叫 方及被叫方的用户标识、 所述主叫用户和被叫用户的地址信息、 所述群组 会话地址信息用于制定所述路由规则。
所述路由规则包括:
如果业务数据的源地址为所述主叫用户的地址, 目的地址为所述群组 会话地址, 则将业务数据的源地址改为所述群组会话地址, 目的地址改为 所述被叫用户的地址。 所述 PoC服务器还用于, 当检测到超时, 或收到会话双方的结束请 求消息, 向所述主叫方 SNC发送会话终止消息, 所述会话终止消息包括 会话标识;
所述主叫方 SNC还用于,接收所述 PoC服务器发送的会话终止消息, 向所述主叫方 GR发送删除路由规则消息;
所述主叫方 GR还用于, 依据所述主叫方 SNC发送的删除路由规则 消息, 删除所述会话的路由规则。
一种群组会话的装置, 其特征在于, 包括:
群组会话创建单元, 用于建立群组会话;
业务信息生成单元, 用于根据所述群组会话生成业务信息;
发送单元, 用于向主叫用户所属的主叫方 SNC发送所述业务信息, 所述业务信息用于所述主叫方 SNC生成第一路由规则并发送给主叫用户 所属的主叫方 GR; 向被叫用户所属的被叫方 SNC发送所述业务信息, 所述业务信息用于所述被叫方 SNC 生成第二路由规则并发送给被叫方 GR;
所述发送单元还用于, 向所述主叫用户发送授予通话权的消息, 通知 所述主叫用户发送业务数据,所述业务数据经所述主叫方 GR根据所述第 一路由规则转发给被叫方 GR ,再经所述被叫方 GR转发给所述被叫用户。
所述群组会话创建单元包括:
接收模块, 用于接收主叫用户发送的第一呼叫邀请消息, 所述第一呼 叫邀请消息用于邀请被叫方用户进行群组会话;
群组会话地址生成模块, 用于生成群组会话地址信息;
发送模块, 用于向所述被叫用户发送第二呼叫邀请消息, 所述第二呼 叫邀请消息携带有所述群组会话地址信息;向所述主叫用户发送呼叫接受 消息, 所述呼叫接受消息携带有所述群组会话地址信息;
接收模块, 还用于接收所述被叫方发送的呼叫接受消息。
所述业务信息包括所述主叫用户及所述被叫用户的用户标识、所述主 叫用户及所述被叫用户的地址信息、 群组会地址信息; 其中, 所述主叫方 及被叫方的用户标识、 所述主叫用户和被叫用户的地址信息、 所述群组会 话地址信息用于制定所述第一路由规则和所述第二路由规则。 所述第一路由规则包括:如果业务数据的源地址为所述主叫用户的地 址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所述群组 会话地址, 目的地址改为所述被叫用户的地址;
所述第二路由规则包括:如果业务数据的源地址为所述被叫用户的地 址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所述群组 会话地址, 目的地址改为所述主叫用户的地址。
所述群组会话装置还包括:
会话终止单元, 用于当检测到超时, 或接收到所述主叫用户和所述被 叫用户发送的结束会话请求消息, 则
向所述主叫方 SNC发送会话终止消息, 令所述主叫方 SNC 向所述 主叫方 GR发送删除所述第一路由规则消息,以使所述主叫方 GR删除所 述第一路由规则; 其中, 所述会话终止消息包括会话标识;
向所述被叫方 SNC发送会话终止消息, 令所述被叫方 SNC 向所述 被叫方 GR发送删除所述第二路由规则消息,以使所述被叫方 GR删除所 述第二路由规则; 其中, 所述会话终止消息包括会话标识。
一种群组会话装置, 包括:
接收单元, 用于接收主叫用户所属的主叫方 SNC发送的路由规则, 所述路由规则由所述主叫方 SNC根据来自 PoC服务器的业务信息生成, 所述业务信息依据建立的群组会话生成;
转发单元, 用于根据所述路由规则将来自所述主叫用户的业务数据 转发给被叫方。
所述路由规则包括:
如果业务数据的源地址为所述主叫用户的地址, 目的地址为所述群 组会话地址, 则将业务数据的源地址改为所述群组会话地址, 目的地址改 为所述被叫用户的地址。
本发明公开了一种基于无线软件定义网络的群组会话业务的方法及 装置、 系统, 通过业务的控制信令与业务数据分离, 对 PoC服务器需求 较少, 对业务呼叫流程改动较少, 可以做到对用户无额外需求, 简化群组 通话业务控制逻辑, 降低 PoC服务器负担, 降低群组会话业务数据时延, 在多方会话的情况下时延降低更明显, 能有效改善用户 QoE。 附图说明
图 1 为一种无线 SDN的网络架构示意图;
图 2为本发明实施例提供的群组会话流程图;
图 3为本发明实施例提供的群组会话流程图;
图 4为本发明实施例提供的群组会话业务信令图;
图 5为本发明实施例提供的群组会话系统示意图;
图 6为本发明实施例提供的群组会话装置示意图;
图 7本发明实施例提供的群组会话装置示意图。
具体实施方式
为使本发明的目的、 技术方案和优点表达得更加清楚明白, 下面结合 附图及具体实施例对本发明再作进一步详细的说明。 显然, 所描述的实施 例是本发明的一部分实施例,而不是全部实施例。基于本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他 实施例, 都应属于本发明保护的范围。
应理解, 本发明实施例的技术方案可以应用于各种群组会话业务, 例 如 PoC( Push to talk over Cellular,移动一键通)、 IM ( Instant Message , 即时消息) 、 视频会议等。 下面更加详细地具体描述本发明的示范性实施例。 实施例一
图 2为本发明实施例提供的群组会话流程图, 具体包括:
S201 , 建立会话, 根据群组会话生成业务信息。
PoC服务器接收主叫用户发送的第一呼叫邀请消息,生成群组会话 地址信息; 所述第一呼叫邀请消息用于邀请被叫方用户进行群组会话;
PoC 服务器向被叫用户发送第二呼叫邀请消息, 所述第二呼叫邀请 消息携带有所述群组会话地址信息; 向主叫用户发送呼叫接受消息, 所述 呼叫接受消息携带有所述群组会话地址信息;
接收被叫方发送的呼叫接受消息, 则建立群组会话。
具体地, 在一对多群组会话中, PoC服务器接收到主叫用户发送的 呼叫邀请消息后, 生成群组会话地址信息, 然后向所有的被叫用户发送第 二呼叫邀请消息, 当至少接收到一个被叫用户发送的呼叫接受消息, 则建 立群组会话。
5202 ,向主叫方 SNC发送业务信息,所述业务信息用于主叫方 SNC 生成第一路由规则并发送给主叫方 GR; 向被叫方 SNC发送业务信息, 所述业务信息用于被叫方 SNC生成第二路由规则并发送给被叫方 GR。
具体地, 业务信息包括主叫用户及被叫用户的用户标识、 主叫用户 及被叫用户的地址信息、 群组会地址信息; 其中, 主叫方及被叫方的用户 标识、 主叫用户和被叫用户的地址信息、 群组会话地址信息用于制定第一 路由规则和第二路由规则。
具体地, 第一路由规则包括: 如果业务数据的源地址为所述主叫用 户的地址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所 述群组会话地址, 目的地址改为所述被叫用户的地址。
第二路由规则包括: 如果业务数据的源地址为所述被叫用户的地 址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所述群组 会话地址, 目的地址改为所述主叫用户的地址。
5203 , 向主叫用户发送授予通话权的消息, 通知主叫用户发送业 务数据,主叫用户发送的业务数据经主叫方 G R根据第一路由规则转发给 被叫方 GR , 再经被叫方 GR转发给被叫用户。
具体地, PoC服务器向主叫用户发送授予通话权消息, 向被叫用户 发送通话权占用消息, 主叫用户发送业务数据至主叫方 GR , 主叫方 GR 根据第一路由规则将业务数据转发至被叫方 GR , 被叫方 GR再根据第二 路由规则将数据发送给被叫用户。
P 0 C服务器接收主叫用户发送的通话权释放消息后,向主叫用户和 被叫用户发送通话权空闲消息; PoC 服务器接收被叫用户发送的通话权 请求消息, 向被叫用户发送通话权授予消息, 向主叫用户发送通话权占用 消息, 被叫用户向主叫用户发送业务数据。 S204 , 终止会话, 删除路由规则。
具体地, 当检测到超时, 或接收到主叫用户和被叫用户发送的结束 会话请求消息, 则向主叫方 SNC发送会话终止消息, 令主叫方 SNC 向 主叫方 GR发送删除第一路由规则消息,以使主叫方 GR删除第一路由规 则; 其中, 所述会话终止消息包括会话标识; 向被叫方 SNC发送会话终 止消息, 令被叫方 SNC向被叫方 G R发送删除第二路由规则消息, 以使 被叫方 GR删除第二路由规则; 其中, 所述会话终止消息包括会话标识。
本发明实施例提供的群组会话方法, 通过业务的控制信令与业务数 据分离, 对 PoC服务器需求较少, 减少了 PoC服务器的负担。 实施例二
图 3为本发明实施例提供的群组会话流程图, 具体包括:
5301 , 接收主叫方 SNC发送的路由规则。
具体地, PoC服务器接收主叫用户发送的呼叫邀请消息, 生成群组 会话地址信息, 向被叫用户发送携带有群组会话地址信息的呼叫邀请消 息, 向主叫用户发送携带有群组会话地址信息的呼叫接受消息, 则建立了 群组会话。
主叫方 SNC接收 PoC服务器发送的业务信息, 根据所述业务信息 生成路由规则, 所述路由规则包括: 如果业务数据的源地址为所述主叫用 户的地址, 目的地址为所述群组会话地址, 则将业务数据的源地址改为所 述群组会话地址, 目的地址改为所述被叫用户的地址。
主叫方 GR接收主叫方 SNC发送的路由规则。
5302 , 接收主叫用户的业务数据, 根据所述路由规则将所述业务 数据转发至被叫方。
5303 , 接收主叫方 SNC发送的删除路由规则消息, 删除所述路由 规则。
当 PoC 服务器检测到超时, 或接收到主叫用户和被叫用户发送的 结束会话请求消息, 则向主叫方 SNC发送会话终止消息, 使主叫方 SNC 向主叫方 GR发送删除路由规则消息, 主叫方 GR删除路由规则; 其中, 所述会话终止消息包括会话标识。 本发明实施例提供的群组会话方法, 通过业务的控制信令与业务数 据分离, 对业务呼叫流程改动较少, 简化群组会话控制逻辑, 降低群组会 话业务数据时延, 在多方会话的情况下时延降低更明显, 能有效改善用户
QoE。 实施例三
图 4为本发明实施例提供的群组会话业务信令图, 如图 4所示, 包 括:
第一部分, 业务会话发起。
主叫用户向 PoC 服务器发送呼叫邀请消息, 要求发起群组会话; PoC 服务器收到呼叫邀请消息后, 生成群组会话地址信息, 向被叫用户 发送携带群组会话地址信息的呼叫邀请消息,向主叫用户发送携带群组会 地址信息的呼叫邀请接受消息; PoC服务器收到被叫用户的接受消息后, 进行第二部分操作。
第二部分, 路由决策和规则下发。
PoC服务器向主叫用户所属的主叫方 SNC发送业务信息, 所述业 务信息包括主叫方及被叫方的用户标识、 主叫方及被叫方的地址信息、媒 体信息、 会话标识和群组会话地址信息, 所述业务信息用于主叫方 SNC 生成第一路由规则; 其中, 所述地址信息包括 IP地址、 端口号、 MAC地 址, 所述媒体信息包括编码格式。
主叫方 SNC根据所述业务信息生成第一路由规则, 并将所述第一 路由规则下发给主叫用户所属的主叫方 GR; 其中, 所述第一路由规则包 括:
如果数据的源地址为主叫用户地址, 目的地址为群组会话地址, 则 将数据源地址改为群组会话地址, 目的地址改为被叫用户的地址。
PoC服务器向被叫用户所属的被叫方 SNC发送业务信息, 所述业 务信息包括主叫方及被叫方的用户标识、 主叫方及被叫方的地址信息、媒 体信息、 会话标识和群组会话地址信息。
被叫方 SNC根据业务信息生成第二路由规则, 并将所述第二路由 规则下发给主叫用户所属主叫方 GR , 所述第二路由规则包括: 如果数据的源地址为被叫用户的地址, 目的地址为群组会话地址 , 则将数据的源地址改为群组会话地址, 目的地址改为主叫用户的地址。
第三部分, 用户会话。
PoC服务器向主叫用户授予通话权,主叫用户发送的业务数据经主 叫方 GR根据第一路由规则转发至被叫方 GR , 再由被叫方 GR发送给被 叫方。 主叫用户向 PoC服务器发送通话权释放消息, PoC服务器向主叫 方和被叫方发送通话权空闲消息, 此时主被叫双方处于通话权空闲状态; 被叫用户发送通话权请求消息, PoC 服务器向被叫用户发送通话权授予 消息, 向主叫用户发送通话权占用消息, 被叫用户发送业务数据经被叫方 GR转发给主叫方 GR , 再由主叫方 GR根据第一路由规则发送给主叫用 户; 被叫用户向 PoC服务器发送通话权释放消息, PoC服务器向主叫用 户和被叫用户发送通话权空闲消息, 此时, 主叫用户和被叫用户处于通话 权空闲状态。
第四部分, 会话结束, 路由规则删除。
当 PoC服务器检测到超时, 或 PoC服务器收到通话各方的结束请 求消息, PoC服务器向主叫方 SNC和被叫方 SNC发送会话终止消息, 所述会话终止消息包括会话标识。
具体的, PoC服务器监控会话, 当一定时间处于会话空闲阶段而又 没有收到来自会话各方的会话请求, 则判定超时。
主叫方 SNC 向主叫方 GR发送删除路由规则消息, 令主叫方 GR 删除本会话相关的路由规则, 被叫方 SNC向被叫方 GR发送删除路由规 则消息, 令被叫方 GR删除本会话相关的路由规则。
本发明实施例提供的群组会话方法, 通过业务的控制信令与业务数 据分离, 对 PoC服务器需求较少, 对业务呼叫流程改动较少, 可以做到 对用户无额外需求, 简化群组通话业务控制逻辑, 降低 PoC服务器负担, 降低群组会话业务数据时延, 在多方会话的情况下时延降低更明显, 能有 效改善用户 QoE。 实施例四
本实施例提供了一种一对多群组会话的方法, 包括: 第一部分, 业务会话发起。
与实施例一中一对一呼叫类似, 区别在于 PoC 服务器在接收到主 叫用户的呼叫邀请消息后, 生成群组会话地址信息, 向所有被叫用户发送 携带群组会地址信息的呼叫邀请消息,向主叫用户发送携带群组会话地址 信息的呼叫邀请接受消息; 等待至少一个被叫用户返回呼叫接受消息之 后, 即进行第二部分操作。
第二部分, 路由决策和规则下发。
同实施例一, PoC服务器向主叫方 SNC及返回了被叫方 SNC发送 业务信息, 第 N用户方的第 N SNC根据业务信息生成第 N路由规则, 其 中 N = 1,2... ; 所述第 N路由规则包括:
如果数据的源地址是第 N用户的地址, 目的地址是群组会话地址, 则将数据复制多份, 数据的源地址改为群组会话地址, 每一份数据的目的 地址分别改为其他的参与群组会话用户的地址;
所述第 N SNC将第 N路由规则发送给第 N用户所属的第 N用户方
GR。
第三部分, 用户会话。
PoC服务器向主叫用户发送通话权授予消息, 主叫用户所属的 GR 将来自主叫用户的业务数据复制多份,根据路由规则分别转发给群组会话 中其他各被叫用户所属的 GR , 再由各被叫用户的 GR发送给相应的被叫 用户。
第四部分, 会话结束, 路由规则删除。
同实施例一, 当 PoC服务器检测到超时, 或 PoC服务器收到会话 各方的结束会话请求消息, PoC 服务器通知群组会话中各用户所属的 SNC删除会话, SNC通知该相应的 GR删除本会话路由规则。
本发明实施例提供的一对多群组会话方法, 通过业务的控制信令与 业务数据分离, 降低群组通话业务数据延时, 在多方会话的情况下时延降 低非常明显, 能有效改善用户 QoE。 实施例五
图 5为本发明实施例提供的群组会话的系统示意图, 如图 5所示, 包括:
PoC服务器 3 , 用于建立会话连接, 根据会话连接生成业务信息; 向所述单一网络控制器 SNC2 发送所述业务信息; 向主叫用户发送授予 发言权的消息, 通知所述主叫用户发送业务数据, 主叫用户发送的业务数 据经网关路由器 GR1根据路由规则转发至被叫用户;
其中, 所述业务信息包括所述主叫用户及所述被叫用户的用户标 识、 所述主叫用户及所述被叫用户的地址信息、 群组会话地址信息; 所述 主叫用户及被叫用户的用户标识、 所述主叫用户和被叫用户的地址信息、 所述群组会话地址信息用于制定所述路由规则;
具体地, 所述路由规则包括: 如果业务数据的源地址信息为所述主 叫用户的地址信息, 目的地址为所述群组会话地址信息, 则将业务数据的 源地址信息改为所述群组会话地址信息, 目的地址信息改为所述被叫用户 的地址信息。
PoC服务器 3还用于, 当检测到会话连接超时, 或收到会话双方的 结束请求消息, 向所述主叫用户所属的 SNC2 发送会话终止消息, 所述 会话终止消息包括会话标识;
SNC2用于, 接收所述业务信息, 并根据所述业务信息生成所述路 由规则并发送给所述 GR;
SNC2还用于, 接收所述 PoC服务器 3发送的会话终止消息, 向 所述 GR1发送删除路由规则消息;
GR1用于, 接收所述 SNC发送的路由规则, 接收主叫用户发送的 业务数据, 并根据所述路由规则将所述业务数据转发给被叫用户;
GR1 还用于, 依据所述 SNC2发送的删除路由规则消息, 删除所 述会话的路由规则。
本发明实施例提供的群组会话系统,通过业务的控制信令与业务数据 分离, 对 PoC服务器需求较少, 对业务呼叫流程改动较少, 可以做到对 用户无额外需求, 简化群组通话业务控制逻辑, 降低 PoC服务器负担, 降低群组会话业务数据时延, 能有效改善用户 QoE。 实施例六 图 6为本发明实施例提供的群组会话的装置示意图, 如图 6所示, 包括:
会话连接建立单元 301 , 用于建立会话连接;
具体地, 所述会话连接建立单元包括:
接收模块 301 1 , 用于接收主叫用户发送的第一呼叫邀请消息, 所述 第一呼叫邀请消息用于邀请被叫用户进行群组会话;
群组会话地址生成模块 301 2 , 用于生成群组会话地址信息; 发送模块 301 3 , 用于向所述被叫用户发送第二呼叫邀请消息, 所述 第二呼叫邀请消息携带有所述群组会话地址信息;向所述主叫用户发送呼 叫接受消息, 所述呼叫接受消息携带有所述群组会话地址信息;
接收模块, 还用于接收所述被叫用户发送的呼叫接受消息。
业务信息生成单元 302 , 用于根据所述会话连接生成业务信息; 具体地, 所述业务信息包括所述主叫用户及所述被叫用户的用户标 识、 所述主叫用户及所述被叫用户的地址信息、 所述群组会地址信息; 其 中, 所述主叫方及被叫方的用户标识、 所述主叫用户和被叫用户的地址信 息、所述群组会话地址信息用于制定所述第一路由规则和所述第二路由规 则。
具体地, 所述第一路由规则包括: 如果业务数据的源地址信息为所述 主叫用户的地址信息, 目的地址信息为所述群组会话地址信息, 则将业务 数据的源地址信息改为所述群组会话地址信息, 目的地址信息改为所述被 叫用户的地址信息;
所述第二路由规则包括:如果业务数据的源地址信息为所述被叫用户 的地址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源 地址信息改为所述群组会话地址信息, 目的地址信息改为所述主叫用户的 地址信息。
发送单元 303 , 用于向主叫用户所属的 SNC发送所述业务信息, 所 述业务信息用于所述主叫用户所属的 SNC生成第一路由规则并发送给主 叫用户所属的 GR; 向被叫用户所属的 SNC发送所述业务信息, 所述业 务信息用于所述被叫用户所属的 SNC生成第二路由规则并发送给被叫用 户所属的 GR; 所述发送单元还用于, 向所述主叫用户发送授予通话权的消息, 通知 所述主叫用户发送业务数据,所述业务数据经所述主叫用户所属的 GR根 据所述第一路由规则转发给被叫用户所属的 GR , 再经所述被叫用户所属 的 GR转发给所述被叫用户。
会话终止单元 304 , 用于当检测到超时, 或接收到所述主叫用户和 所述被叫用户发送的结束会话请求消息, 则
向所述主叫用户所属的 SNC发送会话终止消息, 令所述主叫用户所 属的 SNC向所述主叫用户所属的 G R发送删除所述第一路由规则消息, 以使所述主叫用户所属的 GR删除所述第一路由规则; 其中, 所述会话终 止消息包括会话标识;
向所述被叫用户所属的 SNC发送会话终止消息, 令所述被叫用户所 属的 SNC向所述被叫用户所属的 G R发送删除所述第二路由规则消息, 以使所述被叫用户所属的 GR删除所述第二路由规则; 其中, 所述会话终 止消息包括会话标识。
本发明实施例提供的群组会话装置,通过业务的控制信令与业务数据 分离, 对 PoC服务器需求较少, 对业务呼叫流程改动较少, 可以做到对 用户无额外需求, 简化群组通话业务控制逻辑, 降低 PoC服务器负担, 降低群组会话业务数据时延, 能有效改善用户 QoE。 实施例七
图 7为本发明实施例提供的群组会话的装置示意图, 具体包括: 接收单元 1 01 , 用于接收主叫用户所属的 SNC发送的路由规则, 所述路由规则由所述主叫用户所属的 SNC根据来自 PoC服务器的业务信 息生成, 所述业务信息依据建立的会话连接生成;
转发单元 1 02 , 用于根据所述路由规则将来自所述主叫用户的业务 数据转发给被叫用户。
具体地, 路由规则包括: 如果业务数据的源地址为所述主叫用户的 地址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源地 址信息改为所述群组会话地址信息, 目的地址信息改为所述被叫用户的地 址信息。 本发明实施例提供的群组会话装置, 通过业务的控制信令与业务数 据分离, 对 PoC服务器需求较少, 对业务呼叫流程改动较少, 可以做到 对用户无额外需求, 简化群组通话业务控制逻辑, 降低 PoC服务器负担, 降低群组会话业务数据时延, 在多方会话的情况下时延降低更明显, 能有 效改善用户 QoE。

Claims

权 利 要 求 书
1、 一种群组会话的方法, 其特征在于, 包括:
建立主叫用户与被叫用户之间的会话连接, 根据所述会话连接生成业 务信息;
向主叫用户所属的单一网络控制器 SNC发送所述业务信息; 其中, 所 述业务信息用于所述主叫用户所属的 SNC 生成第一路由规则并发送给主 叫用户所属的网关路由器 GR;
向被叫用户所属的 SNC发送所述业务信息; 其中, 所述业务信息用于 所述主叫用户所属的 SNC 生成第二路由规则并发送给被叫用户所属的 GR;
向所述主叫用户发送授予发言权的消息, 通知所述主叫用户发送业务 数据; 其中, 所述主叫用户发送的业务数据经所述主叫用户所属的 GR根 据所述第一路由规则转发给所述被叫用户所属的 GR , 再经所述被叫用户 所属的 GR转发给所述被叫用户。
2、根据权利要求 1所述的方法,其特征在于,所述建立会话连接包括: 接收主叫用户发送的第一呼叫邀请消息, 生成群组会话地址信息; 所 述第一呼叫邀请消息用于邀请被叫方用户进行会话连接;
向所述被叫用户发送第二呼叫邀请消息, 所述第二呼叫邀请消息携带 有所述群组会话地址信息; 向所述主叫用户发送呼叫接受消息, 所述呼叫 接受消息携带有所述群组会话地址信息;
接收所述被叫方发送的呼叫接受消息, 建立所述会话连接。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述业务信息包括 所述主叫用户及所述被叫用户的用户标识、 所述主叫用户及所述被叫用户 的地址信息、 所述群组会地址信息; 其中, 所述主叫用户及被叫用户的用 户标识、 所述主叫用户和被叫用户的地址信息、 所述群组会话地址信息用 于制定所述第一路由规则和所述第二路由规则。
4、 根据权利要求 1或 3所述的方法, 其特征在于, 所述第一路由规则包括: 如果业务数据的源地址信息为所述主叫用户 的地址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源 地址信息改为所述群组会话地址信息, 目的地址信息改为所述被叫用户的 地址信息;
所述第二路由规则包括: 如果业务数据的源地址信息为所述被叫用户 的地址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源 地址信息改为所述群组会话地址信息, 目的地址信息改为所述主叫用户的 地址信息。
5、 根据权利要求 1所述的方法, 其特征在于, 还包括:
当检测所述会话连接超时, 或接收到所述主叫用户和所述被叫用户发 送的结束会话请求消息, 则
向所述主叫用户所属的 SNC发送会话终止消息 ,令所述主叫用户所属 的 SNC向所述主叫用户所属的 GR发送删除所述第一路由规则消息,以使 所述主叫用户所属的 GR删除所述第一路由规则; 其中, 所述会话终止消 息包括会话标识;
向所述被叫用户所属的 SNC发送会话终止消息,令所述被叫用户所属 的 SNC向所述被叫用户所属的 GR发送删除所述第二路由规则消息,以使 所述被叫用户所属的 GR删除所述第二路由规则; 其中, 所述会话终止消 息包括会话标识。
6、 一种群组会话的方法, 其特征在于, 包括:
主叫用户所属的 GR接收第一路由规则, 所述路由规则由所述主叫用 户所属的 SNC根据来自 PoC服务器的业务信息生成, 所述业务信息依据 在主叫用户和被叫用户之间建立的会话连接生成;
接收主叫用户的业务数据, 根据所述路由规则将所述业务数据转发给 被叫用户所属的 GR; 以便于所述被叫用户所属的 GR将所述业务数据转 发给被叫用户所属的 GR, 再由所述被叫用户所属的 GR发送给所述被叫 用户;
其中, 所述路由规则由主叫用户所属的 SNC产生。
7、 根据权利要求 6所述的方法, 其特征在于,
所述路由规则包括: 如果业务数据的源地址信息为所述主叫用户的地 址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源地址 信息改为所述群组会话地址信息, 目的地址信息改为所述被叫用户的地址 信息;
8、 根据权利要求 6或 7所述的方法, 其特征在于, 还包括:
在会话连接终止时,接收所述主叫用户所属的 S N C发送的删除路由规 则消息, 删除所述路由规则。
9、 一种群组会话的系统, 其特征在于, 包括 PoC服务器,单一网络控 制器 SNC , 网关路由器 GR:
所述 PoC服务器用于建立会话连接,根据所述会话连接生成业务信息; 向所述 SNC发送所述业务信息; 向主叫用户发送授予发言权的消息, 通知 所述主叫用户发送业务数据, 所述主叫用户发送的业务数据经所述 GR根 据路由规则转发至被叫用户所属的 GR, 再由所述被叫用户所属的 GR发 送给所述被叫用户;
所述 SNC用于接收所述业务信息,并根据所述业务信息生成所述路由 规则并发送给所述 GR;
所述 GR用于接收所述 SNC发送的路由规则,接收主叫用户发送的业 务数据, 并根据所述路由规则将所述业务数据转发给被叫用户所属的 GR , 再由所述被叫用户所属的 GR发送给所述被叫用户。
10、 根据权利要求 9所述的系统, 其特征在于, 所述业务信息包括所 述主叫用户及所述被叫用户的用户标识、 所述主叫用户及所述被叫用户的 地址信息、 群组会话地址信息; 其中, 所述主叫用户及被叫用户的用户标 识、 所述主叫用户和被叫用户的地址信息、 所述群组会话地址信息用于制 定所述路由规则。
1 1、 根据权利要求 9或 1 0所述的系统, 其特征在于, 所述路由规则 包括:
如果业务数据的源地址信息为所述主叫用户的地址信息, 目的地址为 所述群组会话地址信息, 则将业务数据的源地址信息改为所述群组会话地 址信息, 目的地址信息改为所述被叫用户的地址信息;
12、 根据权利要求 9所述的系统, 其特征在于,
所述 PoC服务器还用于, 当检测到会话连接超时, 或收到会话双方的 结束请求消息, 向所述主叫用户所属的 SNC发送会话终止消息, 所述会话 终止消息包括会话标识;
所述 SNC还用于, 接收所述 PoC服务器发送的会话终止消息, 向所 述 GR发送删除路由规则消息;
所述 GR还用于, 依据所述 SNC发送的删除路由规则消息, 删除所述 会话的路由规则。
13、 一种群组会话的装置, 其特征在于, 包括:
会话连接建立单元, 用于建立会话连接;
业务信息生成单元, 用于根据所述会话连接生成业务信息;
发送单元, 用于向主叫用户所属的 SNC发送所述业务信息, 所述业务 信息用于所述主叫用户所属的 SNC 生成第一路由规则并发送给主叫用户 所属的 GR; 向被叫用户所属的 SNC发送所述业务信息, 所述业务信息用 于所述被叫用户所属的 SNC 生成第二路由规则并发送给被叫用户所属的 GR;
所述发送单元还用于, 向所述主叫用户发送授予通话权的消息, 通知 所述主叫用户发送业务数据, 所述业务数据经所述主叫用户所属的 GR根 据所述第一路由规则转发给被叫用户所属的 GR, 再经所述被叫用户所属 的 GR转发给所述被叫用户。
14、 根据权利要求 1 3 所述的装置, 其特征在于, 所述会话连接建立 单元包括: 接收模块, 用于接收主叫用户发送的第一呼叫邀请消息, 所述第一呼 叫邀请消息用于邀请被叫用户进行群组会话;
群组会话地址生成模块, 用于生成群组会话地址信息;
发送模块, 用于向所述被叫用户发送第二呼叫邀请消息, 所述第二呼 叫邀请消息携带有所述群组会话地址信息; 向所述主叫用户发送呼叫接受 消息, 所述呼叫接受消息携带有所述群组会话地址信息;
接收模块, 还用于接收所述被叫用户发送的呼叫接受消息。
15、 根据权利要求 13或 14所述的装置, 其特征在于, 所述业务信息 包括所述主叫用户及所述被叫用户的用户标识、 所述主叫用户及所述被叫 用户的地址信息、 所述群组会地址信息; 其中, 所述主叫方及被叫方的用 户标识、 所述主叫用户和被叫用户的地址信息、 所述群组会话地址信息用 于制定所述第一路由规则和所述第二路由规则。
16、 根据权利要求 13或 15所述的装置, 其特征在于,
所述第一路由规则包括: 如果业务数据的源地址信息为所述主叫用户 的地址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源 地址信息改为所述群组会话地址信息, 目的地址信息改为所述被叫用户的 地址信息;
所述第二路由规则包括: 如果业务数据的源地址信息为所述被叫用户 的地址信息, 目的地址信息为所述群组会话地址信息, 则将业务数据的源 地址信息改为所述群组会话地址信息, 目的地址信息改为所述主叫用户的 地址信息。
17、 根据权利要求 13所述的装置, 其特征在于, 还包括:
会话终止单元, 用于当检测到超时, 或接收到所述主叫用户和所述被 叫用户发送的结束会话请求消息, 则
向所述主叫用户所属的 SNC发送会话终止消息 ,令所述主叫用户所属 的 SNC向所述主叫用户所属的 GR发送删除所述第一路由规则消息,以使 所述主叫用户所属的 GR删除所述第一路由规则; 其中, 所述会话终止消 息包括会话标识;
向所述被叫用户所属的 SNC发送会话终止消息,令所述被叫用户所属 的 SNC向所述被叫用户所属的 GR发送删除所述第二路由规则消息,以使 所述被叫用户所属的 GR删除所述第二路由规则; 其中, 所述会话终止消 息包括会话标识。
18、 一种群组会话装置, 其特征在于, 包括:
接收单元, 用于接收主叫用户所属的 SNC发送的路由规则, 所述路 由规则由所述主叫用户所属的 SNC根据来自 PoC服务器的业务信息生成, 所述业务信息依据建立的会话连接生成;
转发单元, 用于根据所述路由规则将来自所述主叫用户的业务数据 转发给被叫用户所属的 GR , 再由所述被叫用户所属的 GR发送给所述被 叫用户。
19、根据权利要求 18所述的装置,其特征在于,所述路由规则包括: 如果业务数据的源地址为所述主叫用户的地址信息, 目的地址信息 为所述群组会话地址信息, 则将业务数据的源地址信息改为所述群组会话 地址信息, 目的地址信息改为所述被叫用户的地址信息。
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