CN102036187B - Method for transmitting monitoring videos in real time in broadband digital clustering communication system - Google Patents
Method for transmitting monitoring videos in real time in broadband digital clustering communication system Download PDFInfo
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- CN102036187B CN102036187B CN200910093504.1A CN200910093504A CN102036187B CN 102036187 B CN102036187 B CN 102036187B CN 200910093504 A CN200910093504 A CN 200910093504A CN 102036187 B CN102036187 B CN 102036187B
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Abstract
The invention relates to a method for transmitting monitoring videos in real time in a broadband digital clustering communication system, which comprises the following steps: a terminal sends a monitoring video request message to a network subsystem; the network subsystem authenticates the terminal, interacts with an information application subsystem to generate quality of service (QoS) policies, and allocates clustering specially-loaded QoS parameters; the network subsystem sends the clustering specially-loaded QoS parameters to a broadband wireless access subsystem, and the broadband wireless access subsystem allocates downlink resources and sends the downlink resources to the user terminal; the user terminal completes the configuration of each layer according to the description of the downlink resources; the broadband wireless access subsystem sends clustering contexts to the network subsystem to establish a completion message; and the information application subsystem interacts with the network subsystem and sends business data streams of the monitoring videos to the user terminal through the network subsystem and the broadband wireless access subsystem. After the embodiment of the invention is applied, the high rate and low time delay of real-time transmission of the monitoring videos can be guaranteed, thereby providing the QoS guarantee.
Description
Technical field
The present invention relates to communication technical field, more specifically, relate to a kind of method that transmits in real time based on monitor video in the wideband digital trunked communication system of time-division Long Term Evolution (TD-LTE, Time Division-Long Term Evolution) technology.
Background technology
Digital clustering communication system is a kind of mobile command dispatching patcher, is bringing into play huge effect in the specialized communication field.Compare with public mobile communication system, digital clustering communication system is supported individual call and group call, and call proceeding is fast, and the user shares downlink traffic channel in the group, and the very high availability of frequency spectrum is arranged.
Owing to possess the characteristics such as distinctive scheduling, group calling and short calling, digital clustering communication system has been brought into play huge effect in the specialized communication field.Since the mid-90 in 20th century, digital clustering communication system is risen in the world, is widely used, and has obtained good economic benefit and social benefit.
The informationalized client who pushes forward digital clustering communication systems such as impelling industry user, enterprise group and government department comprehensively is more and more urgent to the demand of mobile flow medium videoconferencing service.For example, the personnel of traffic department wish and can obtain movably in real time the monitor video of road traffic condition so that fast processing accident and emergency condition by terminal.In addition, can reflect reality more intuitively situation in order to make a response fast by real-time video transmission in the command scheduling process.
Existing digital clustering communication system all is based on second generation mobile communication system (2G) or 3-G (Generation Three mobile communication system) (3G) realizes, to provide PTT (PTT) voice narrow band service as main, available supplementary data traffic speed is lower.But, flourish along with the progress of information technology and internet, applications, society's every profession and trade, the cluster user such as enterprise customer and government department to the business demand of digital clustering communication system gradually from common schedule voice to the collection voice, data, image and video change in the wideband multimedia direction of one, wish to pass through two-forty, low time delay, wideband digital trunked communication system with service quality (QoS) assurance promotes operating efficiency, accelerate informatization, but existing digital clustering communication system also can't provide in real time transmission of broadband multimedia services monitor video etc.
Summary of the invention
The embodiment of the invention proposes the method that monitor video in a kind of wideband digital trunked communication system transmits in real time, with two-forty and the low time delay of the realtime video transmission that guarantees to be monitored, and then provides QoS to guarantee.
The technical scheme of the embodiment of the invention is as follows:
The method that monitor video transmits in real time in a kind of wideband digital trunked communication system, system comprises terminal and network side, and terminal comprises user terminal and dispatching desk, and network side comprises network subsystem, information application subsystem and broadband wireless access subsystem, it is characterized in that the method comprises:
A, terminal send request monitor video message to network subsystem;
After B, network subsystem receive request monitor video message, to terminal authentication;
After C, authentication were passed through, network subsystem and information application subsystem generated QoS policy alternately, and network subsystem distributes cluster dedicated bearing qos parameter according to qos policy;
D, network subsystem be to broadband wireless access subsystem signalling of bouquet dedicated bearing qos parameter, the broadband wireless access subsystem according to cluster dedicated bearing qos parameter allocation of downlink resource after, down-chain resource described being sent to user terminal;
E, user terminal are described according to down-chain resource and are finished each layer configuration;
F, broadband wireless access subsystem are set up to network subsystem signalling of bouquet context and are finished message;
After G, cluster dedicated bearing were set up and finished, information application subsystem and network subsystem carried out alternately, and sent the monitor video business data flow by network subsystem and broadband wireless access subsystem to user terminal.
Preferably,
Terminal is user terminal described in the described steps A;
Described in the described step B terminal authentication is finished in described network subsystem, undertaken alternately by enhancement mode mobile management entity eMME and enhancement mode home subscriber server eHSS, realize the authentication to user terminal;
Described step C specifically is included in the network subsystem, sends request cluster dedicated bearing by gateway S-GW to enhanced packet data network gateway eP-GW by eMME and sets up message;
EP-GW initiates IP-Can Session Establishment session establishment process, carry out Signalling exchange between eP-GW in the network subsystem, eHSS, "Policy and Charging Rules Function entity PCRF and the information application subsystem, the business information generating QoS policy that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide also is handed down to eP-GW;
EP-GW distributes cluster dedicated bearing qos parameter according to qos policy;
Described step D comprises that specifically eP-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the eP-GW S5/S8TEID of cluster dedicated bearing, then sends to S-GW and creates cluster dedicated bearing request message;
S-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the S-GW S1-TEID of cluster dedicated bearing, then sends to eMME and creates cluster dedicated bearing request message;
After eMME received and creates cluster dedicated bearing request message, request message set up in the E-eNodeB signalling of bouquet context in the broadband wireless access subsystem, carries cluster dedicated bearing qos parameter in this message;
E-eNodeB is mapped as wireless qos parameter with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource, the down-chain resource description is sent to user terminal;
Described step F is to be set up to eMME signalling of bouquet context by E-eNodeB to finish message;
Also comprise,
Send establishment cluster dedicated bearing by eMME to S-GW and set up response message;
S-GW records the relation between E-eNodeB S1-TEID and the S-GW S1-TEID, and sets up the foundation that response message is confirmed the S5/S8 carrying to eP-GW transmission establishment cluster dedicated bearing;
Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.
The monitor video of request described in described steps A message comprises user terminal identification, service identification and video monitoring server IP address;
The cluster of request described in described step C dedicated bearing is set up message and is comprised user terminal identification, service identification, video surveillance server IP address;
EP-GW described in the described step D sends to S-GW and creates cluster dedicated bearing request message, comprises user terminal identification, cluster dedicated bearing qos parameter, eP-GW S5/S8TEID in this message;
Described S-GW comprises user terminal identification, cluster dedicated bearing qos parameter, S-GW S1-TEID to the establishment cluster dedicated bearing request message that eMME sends in this message;
Described cluster context is set up in the request message and is also carried, and it is that user terminal divides the down-chain resource that is used in the receiving video service data flow that user terminal identification, S-GW S1-TEID, described cluster context set up request message indication E-eNodeB.
Preferably,
Terminal in the described steps A is wired dispatching desk; Described transmission request monitor video message is finished in described network subsystem, specifically comprises:
Wired dispatching desk sends request monitor video message to scheduling gateway D-GW;
D-GW and eHSS carry out alternately, to wired dispatching desk authentication;
D-GW passes through the authentication of wired dispatching desk, and D-GW will ask monitor video message to be forwarded to eMME;
Described in the described step B terminal authentication is comprised that eMME carries out alternately with eHSS after receiving request monitor video message, eMME carries out authentication to the user terminal of appointment;
Described step C comprises that specifically eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up message;
EP-GW initiates IP-Can Session Establishment process, carry out Signalling exchange between eP-GW, eHSS, PCRF and the information application subsystem, the business information generating QoS policy that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide also is handed down to eP-GW;
EP-GW distributes cluster dedicated bearing qos parameter according to qos policy;
Described step D comprises that specifically eP-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the eP-GW S5/S8TEID of cluster dedicated bearing, then sends to S-GW and creates cluster dedicated bearing request message;
S-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the S-GW S1-TEID of cluster dedicated bearing, then sends to eMME and creates cluster dedicated bearing request message;
After eMME received and creates cluster dedicated bearing request message, request message set up in the E-eNodeB signalling of bouquet context in the broadband wireless access subsystem, carries cluster dedicated bearing qos parameter in this message;
E-eNodeB is mapped as wireless qos parameter with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource, the down-chain resource description is sent to user terminal;
Described step F is to be set up to eMME signalling of bouquet context by E-eNodeB to finish message;
Also comprise,
Send establishment cluster dedicated bearing by eMME to S-GW and set up response message;
S-GW records the relation between E-eNodeB S1-TEID and the S-GW S1-TEID, and sets up the foundation that response message is confirmed the S5/S8 carrying to eP-GW transmission establishment cluster dedicated bearing;
Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.
Preferably,
Terminal in the described steps A is wireless dispatching desk; Described transmission request monitor video message is finished in described network subsystem, specifically comprises:
Wireless dispatching desk sends request monitor video message by E-eNodeB to eMME;
EMME carries out alternately with eHSS after receiving request monitor video message, and eMME passes through the authentication of wireless dispatching desk, and eMME sends request monitor video message to eHSS;
Described in the described step B terminal authentication is comprised that eMME carries out alternately with eHSS after receiving request monitor video message, eMME carries out authentication to the user terminal of appointment;
Described step C comprises that specifically eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up message;
EP-GW initiates IP-Can Session Establishment process, carry out Signalling exchange between eP-GW, eHSS, PCRF and the information application subsystem, the business information generating QoS policy that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide also is handed down to eP-GW;
EP-GW distributes cluster dedicated bearing qos parameter according to qos policy;
Described step D comprises that specifically eP-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the eP-GW S5/S8TEID of cluster dedicated bearing, then sends to S-GW and creates cluster dedicated bearing request message;
S-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the S-GW S1-TEID of cluster dedicated bearing, then sends to eMME and creates cluster dedicated bearing request message;
After eMME received and creates cluster dedicated bearing request message, request message set up in the E-eNodeB signalling of bouquet context in the broadband wireless access subsystem, carries cluster dedicated bearing qos parameter in this message;
E-eNodeB is mapped as wireless qos parameter with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource, the down-chain resource description is sent to user terminal;
Described step F is to be set up to eMME signalling of bouquet context by E-eNodeB to finish message;
Also comprise,
Send establishment cluster dedicated bearing by eMME to S-GW and set up response message;
S-GW records the relation between E-eNodeB S1-TEID and the S-GW S1-TEID, and sets up the foundation that response message is confirmed the S5/S8 carrying to eP-GW transmission establishment cluster dedicated bearing;
Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.
The monitor video of request described in described steps A message comprises dispatching desk sign, designated user terminal iidentification, service identification and video monitoring server IP address;
The cluster of request described in described step C dedicated bearing is set up message and is comprised designated user terminal iidentification, E-eNodeB tabulation, multicast ip address, video surveillance server IP address;
EP-GW described in the described step D sends to S-GW and creates cluster dedicated bearing request message, comprises designated user terminal iidentification, E-eNodeB tabulation, cluster dedicated bearing qos parameter, eP-GWS5/S8TEID in this message;
Described S-GW comprises designated user terminal iidentification, E-eNodeB tabulation, cluster dedicated bearing qos parameter, S-GW S1-TEID to the establishment cluster dedicated bearing request message that eMME sends in this message;
Described cluster context is set up in the request message and is also carried, it is that user terminal divides the down-chain resource that is used in the receiving video service data flow that designated user terminal iidentification, multicast ip address, S-GW S1-TEID, described cluster context set up request message indication E-eNodeB.
Described step D and step e are parallel carries out.
Further comprise before the described steps A,
Network registry is carried out in the user terminal start, and sets up default bearer;
User terminal carries out the registration of group service by sending non-access layer information to the enhancement mode mobile management entity eMME in the network subsystem;
Network subsystem is to subscriber terminal authority;
After network subsystem passes through subscriber terminal authority, return group service registration receipt message to user terminal.
Information application subsystem and network subsystem carry out comprising alternately among the described step G
EP-GW, PCRF and information application subsystem are carried out alternately, the information application subsystem is confirmed IP-CanSession Establishment session establishment, and the video monitoring server in the indication information application subsystem begins to send described monitor video business data flow.
Send the monitor video business data flow by network subsystem and broadband wireless access subsystem to user terminal among the described step G, comprise
EP-GW copies, shines upon and be sent to S-GW to the monitor video business data flow, and S-GW sends to E-eNodeB with the monitor video data flow, and is sent to user terminal by E-eNodeB.
From technique scheme, can find out, the embodiment of the invention realizes in the wideband digital trunked communication system based on the TD-LTE technology, can take full advantage of the large channel capacity of TD-LTE technology, the characteristics such as high spectrum utilization and high transformation property, be after the user terminal of appointment sends request and sets up monitor video message by user terminal directly or by wired dispatching desk or wireless dispatching desk, by with network subsystem, the information application subsystem, interacting message between the broadband wireless access subsystem, set up the monitor video transmission channel between video surveillance management system and user terminal in the information application subsystem, utilize this passage to transmit the Real Time Monitoring video to corresponding user terminal, thereby guarantee the two-forty of the realtime video transmission that monitors, large bandwidth and low time delay, and the QoS assurance can be provided.
Description of drawings
Fig. 1 is based on the network architecture schematic diagram of the wideband digital trunked communication system of TD-LTE technology among the present invention;
Fig. 2 is the process schematic diagram that network registry and group service registration are carried out in the user terminal start among the present invention;
Fig. 3 is that the user terminal active request of the embodiment of the invention one issues the process schematic diagram that monitor video realizes that monitor video transmits in real time;
Fig. 4 is that wired dispatching desk request of the embodiment of the invention two issues the process schematic diagram that monitor video realizes that monitor video transmits in real time;
Fig. 5 is that the wireless dispatching desk request of the embodiment of the invention three issues the process schematic diagram that monitor video realizes that monitor video transmits in real time.
Embodiment
The present invention proposes the method that monitor video transmits in real time in a kind of wideband digital trunked communication system, and the method realizes in the wideband digital trunked communication system based on TD-LTE.The TD-LTE technology is a kind of TD SDMA (TD-SCDMA) evolution technology, is the model that mobile communication and broadband wireless access are merged, and also is one of mainstream standard of following wide-band mobile communication.Compare with existing trunked communication system, wideband digital trunked communication system based on the TD-LTE technology has larger channel capacity, the higher availability of frequency spectrum, stronger antijamming capability and better transmission performance, not only can satisfy the demands such as the two-forty that monitors realtime video transmission, large bandwidth and low time delay, and guarantee to monitor the QoS of realtime video transmission.
The method that monitor video transmits in real time in the wideband digital trunked communication system, not only can satisfy the cluster clients such as industry user, enterprise group and government department to the demand of mobile flow medium videoconferencing service, also so that dispatching management personnel and industry department personnel can utilize terminal the control point is checked and to be managed, in time grasp field condition whenever and wherever possible, broken away from the embarrassment that the supervisor can't move freely in the wired monitoring, can provide in real time for sector application, command scheduling service system efficiently.
Fig. 1 is the network architecture schematic diagram based on the wideband digital trunked communication system of TD-LTE technology.As shown in Figure 1, comprising: terminal, broadband wireless access subsystem, network subsystem, information application subsystem and five chief components of operation and maintenance sub system.
1, terminal
Terminal refers to the equipment that supervisory user can direct control, comprises user terminal and dispatching desk, and user terminal is comprised of portable terminal and fixed station; Dispatching desk is comprised of wired dispatching desk and wireless dispatching desk.Terminal links to each other with broadband wireless access subsystem or network subsystem by air interface or wired connection.Wherein, portable terminal can specifically comprise hand held mobile station and Vehicle mounted station etc.
Portable terminal and fixed station have increased the PTT button in existing TD-LTE terminal, have that PTT calls out that automatic hand-free is answered and the function such as talker's sign.
Dispatching desk provides operating platform for dispatcher or keeper, can initiate and participate in the group services such as group calling, broadcast ﹠ call, and can realize scheduling and management to cluster user and group service.
2, broadband wireless access subsystem
The broadband wireless access subsystem mainly is comprised of enhanced base station (E-eNodeB).E-eNodeB has increased a wireless colony scheduling feature module (RTDF) on the basis of TD-LTE system original base station (eNodeB), to support group service, namely be used for being responsible for the relevant treatment of group service, comprise: from enhancement mode mobile management entity (eMME) receive the cluster control signal, for the terminal distribution Radio Resource (as, and will be sent to from the business data flow that gateway (S-GW) receives and receive professional terminal etc. the descending shared Radio Resource of cell allocation for the terminal place that receives business data flow).
3, network subsystem
Network subsystem mainly is comprised of eMME, enhancement mode home subscriber server (eHSS), gateway (S-GW), "Policy and Charging Rules Function entity (PCRF), enhanced packet data network gateway (eP-GW) and scheduling gateway (D-GW) etc., is used for finishing calling control, colony dispatching, the transmission of business data flow and the functions such as data management of cluster user of cluster user.
Wherein, eMME is the nucleus equipment of realizing group service, increases cluster control functional module (TCF) by the basis at the original mobile management entity of TD-LTE system (MME) and realizes cluster control function.Specifically, TCF is responsible for foundation, safeguards and discharges various group services as the control centre of trunked call, carries out right of speech management and scheduling; In addition, also be responsible for terminal is carried out the mandate of authentication and group service, be the foundation of the terminal originating service carrying of authentication success.
EHSS has increased cluster user server (TSS) on the basis of the original home subscriber server of TD-LTE system (HSS), is used for the store and management group user profile relevant with group service.
S-GW is the terminal point that connects the packet data interface of broadband wireless access subsystem, mainly is responsible for route and the forwarding of packet.
PCRF is connected to eP-GW and information application subsystem, provides the qos policy control decision for group service for eP-GW, guarantees to carry out mapping and the processing of user's face business according to the requirement that the user contracts.
EP-GW is the gateway that connects outer data network, increased cluster block functions module (TPF) on the basis of the original grouped data network gateway of TD-LTE system (P-GW), be used for finishing the group service data flow mapping, copy and distribute (being distributed to S-GW), and initiate the foundation of service bearer according to characteristics and the QoS demand of the group service of terminal request.
D-GW is the gateway of wired dispatching desk access network subsystem, and the access of wired dispatching desk is provided, and wired dispatching desk is carried out authentication; In addition, the also control signal between the eMME in the responsible wired dispatching desk of transmission and the network subsystem and the eHSS etc., and the business data flow between wired dispatching desk and the eP-GW; Have, D-GW also is responsible for other digital clustering communication system of access, finishes interconnecting between the different digital trunked communication system again.
4, information application subsystem
The information application subsystem comprises the multiple application systems such as video surveillance management system, image intelligent analytical system, be mainly sector application visualized operation is provided, realize the dynamic management function, emphasis solves image transmitting, data query and the business such as collection, video monitoring.
5, operation and maintenance sub system
Comprise two kinds of equipment in the operation and maintenance sub system, a kind of for operator, for the maintenance and management of network system equipment, such as systematic function configuration, device status monitoring etc.; A kind of is user management device, and the user data management function in the native system is provided; Can carry out the operations such as change of the opening an account of cluster user, cancellation and customer service authority by operation and maintenance sub system.
For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The method that monitor video transmits in real time in wideband digital trunked communication system of the present invention, the real-time transmission of monitor video has three kinds of basic application scenarioss, be embodiment one, by user terminal active initiating business request, the request network issues specific monitor video; Embodiment two, by wired dispatching desk initiating business request, are used for sending monitor video to the group of appointment or the user terminal of appointment; Embodiment three, by the wireless dispatching desk initiating business request, are used for sending monitor video to group or the designated user terminal of appointment.
No matter be in the present invention user terminal active request or by the dispatching desk request, at first need to connect with network side after each user terminal start.As shown in Figure 1, user terminal and network side connect, and specifically may further comprise the steps:
Step 201, user terminal start are carried out and are adhered to (Attach) process, carry out network registry, and set up default bearer.
The specific implementation of Attach process is prior art, repeats no more; Default bearer is comprised of the S1 carrying between the S-GW and the S5/S8 between the eP-GW in S-GW and network subsystem carrying in radio bearer, E-eNodeB and the network subsystem between the E-eNodeB in user terminal and the broadband wireless access subsystem.
Step 202, user terminal are carried out the registration of group service by sending Non-Access Stratum (NAS, Non Access Stratum) message to the eMME in the network subsystem.
After step 204, eMME pass through the authentication of user terminal, return the group service registration to user terminal and accept message (Trunking Service Registration Accept), the success of user terminal registered set group business.
After successfully being registered to network, user terminal is in connection status (CONNECTED state).If after this user terminal and network side do not have Signalling exchange for a long time, then can enter idle condition (IDLE state), this moment, radio bearer and the S1 carrying of default bearer can be deleted by system.
Embodiment one, and by user terminal active initiating business request, the request network issues specific monitor video.
As shown in Figure 3, user terminal sends request monitor video message by NAS message to eMME; EHSS in eMME and the network subsystem is mutual, and user terminal is carried out service authentication; If authentication is passed through, then eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up (RequestTrunking Dedicated Bearer Setup) message; PCRF in eP-GW, eHSS, the network subsystem and information application subsystem are mutual, obtain professional required QoS information, and initiate the foundation of cluster dedicated bearing according to this QoS information.Specifically may further comprise the steps:
Step 301 to step 302 is that the user terminal that is registered to trunked communication system sends the detailed process of asking the monitor video service request.
Step 301, user terminal send request monitor video (RequestMonitor Video) message by NAS message to eMME, and this message has been carried the information such as user terminal identification, service identification, video monitoring server IP address.
Step 302, eMME and eHSS carry out alternately, and eMME carries out authentication to user terminal, check the service request whether this user terminal has the right to initiate to ask monitor video.If authentication is not passed through, the service request of eMME refusing user's terminal then.
If send before the message of request monitor video, user terminal is in idle condition (IDLE), then before step 301, need to initiate first service request procedure (Service Request Procedure), the default bearer of setting up when recovering network registry.Service request procedure is the signaling procedure of TD-LTE mobile communication system Plays, just repeats no more at this.
Step 303 to step 304 is that eP-GW obtains qos policy, distributes the detailed process of bearer QoS parameters.
Step 303, eMME and eHSS carry out alternately, eMME passes through subscriber terminal authority, then eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up (Request TrunkingDedicatedBearer Setup) message, the service bearer that sends the monitor video data flow, the information such as message carrying user terminal sign, service identification, video monitoring server IP address are set up in request.
Step 304, eP-GW initiate IP-Can session establishment (IP-Can Session Establishment) process after receiving and asking the cluster dedicated bearing to set up message.In this process, eP-GW, eHSS, PCRF and information application subsystem are carried out Signalling exchange, the business information that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide, and generating QoS policy is handed down to eP-GW.EP-GW distributes cluster dedicated bearing qos parameter according to qos policy.
Wherein, described qos policy generative process is identical with qos policy generative process in the TD-LTE mobile communication system; Described eP-GW distributes the process of bearer QoS parameters to distribute the process of bearer QoS parameters according to qos policy with eP-GW in the TD-LTE mobile communication system according to qos policy.
Step 305 to step 311 is that eP-GW initiates the detailed process that the cluster dedicated bearing is set up.
Step 305, eP-GW distribute bearing resource according to cluster dedicated bearing qos parameter, and the eP-GW S5/S8TEID of distribution cluster dedicated bearing, send establishment cluster dedicated bearing request (Create Trunking Dedicated Bearer Request) message with backward S-GW, comprise the information such as user terminal identification, cluster dedicated bearing qos parameter, eP-GW S5/S8TEID in the message.
Step 306, S-GW distribute bearing resource according to cluster dedicated bearing qos parameter, and the S-GW S1-TEID of distribution cluster dedicated bearing, send establishment cluster dedicated bearing request (CreateTrunking Dedicated Bearer Request) message with backward eMME, comprise the information such as designated user terminal iidentification, cluster dedicated bearing qos parameter, S-GW S1-TEID in the message.
After step 307, eMME receive and create cluster dedicated bearing request message, set up request (Trunking Context Setup Request) message to the E-eNodeB signalling of bouquet context at user terminal place, the information such as message carrying user terminal sign, cluster dedicated bearing qos parameter, S-GW S1-TEID, indication E-eNodeB is user terminal allocation of downlink resource, is used for the receiving video service data flow.
Step 308, E-eNodeB are mapped to wireless qos parameter according to the indication of eMME with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource.E-eNodeB will comprise that down-chain resource is described and the indication of safe relevant configuration information sends to user terminal; User terminal is finished each layer configuration according to the indication of E-eNodeB.So far, radio bearer is set up and is finished.
After the radio bearer of step 309, cluster dedicated bearing is set up and is finished, E-eNodeB sets up to eMME signalling of bouquet context and finishes (Trunking Context Setup Complete) message, has carried the E-eNodeB S1-TEID that E-eNodeB distributes in the message.
Step 310, eMME send to S-GW and create cluster dedicated bearing foundation response (CreateDedicated Bearer Setup Response) message, carry the information such as E-eNodeB S1-TEID, TrunkingBearer Identity in the message.
Relation between step 311, S-GW record E-eNodeB S1-TEID and the S-GW S1-TEID, and set up response (Create Dedicated Bearer Setup Response) message by establishment cluster dedicated bearing and return the S-GW S5/S8TEID that S-GW distributes to eP-GW; Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.So far, the cluster dedicated bearing is set up and is finished.
After step 312, cluster dedicated bearing are set up and are finished, eP-GW and PCRF and information application subsystem are carried out Signalling exchange, confirm IP-Can Session Establishment, the video monitoring server in the information application subsystem can begin to send the monitor video business data flow at this moment.The monitor video business data flow is sent to user terminal through eP-GW, S-GW, E-eNodeB.
Dispatching desk is the operating platform that carries out dispatching management in the trunked communication system, by the management of cluster user and the control of group service are realized the command scheduling function.When emergency occured, dispatching desk may send monitor video to one group of user terminal or some groups of user terminals of appointment, according to the situation that the Real Time Monitoring video reflects, makes emergency processing.Dispatching desk is divided into wired dispatching desk and wireless dispatching desk.To be respectively wired dispatching desk and wireless dispatching desk request issue the monitor video detailed process to group or the designated user terminal of appointment for embodiment two and embodiment three.
Embodiment two, and wired dispatching desk request issues monitor video to group or the designated user terminal of appointment.
Compare with the implementation procedure of user terminal active request monitor video, this business is initiated by wired dispatching desk.Wired dispatching desk will ask monitor video message to send to eMME by the scheduling gateway, and notifying it is that the designated user terminal sends monitor video; Subsequently, eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up message; EP-GW and PCRF and information application subsystem are carried out Signalling exchange, obtain professional required QoS information, and initiate the foundation of cluster dedicated bearing according to this QoS information.The specific implementation process may further comprise the steps as shown in Figure 4:
Step 401 to step 403 is wired dispatching desk sends request monitor video service request to eMME by the scheduling gateway detailed processes.
Step 401, wired dispatching desk send request monitor video (Request MonitorVideo) message to the scheduling gateway, comprise dispatching desk sign, designated user terminal iidentification, service identification in this message, and the information such as IP address of video monitoring server.
Step 402, scheduling gateway carry out alternately wired dispatching desk being carried out authentication with eHSS after receiving request monitor video message.If authentication is not passed through, then dispatch the service request that gateway is refused wired dispatching desk.
If step 403 scheduling gateway passes through the authentication of wired dispatching desk, then dispatch gateway and will ask monitor video (Request Monitor Video) message to be transmitted to eMME.
Step 404 to step 406 is that eP-GW obtains qos policy, and distributes the detailed process of bearer QoS parameters according to qos policy.
Step 404, eMME and eHSS carry out alternately, and eMME is to the information of eHSS request designated user terminal, comprise the information such as E-eNodeB tabulation, multicast ip address at designated user terminal place.
Step 405, eMME send request cluster dedicated bearing by S-GW to eP-GW and set up (RequestDedicated Bearer Setup) message, comprise the information such as IP address of designated user terminal iidentification, E-eNodeB tabulation, multicast ip address, video monitoring server in the message.
Step 406, eP-GW initiate IP-Can SessionEstablishment process after receiving and asking the cluster dedicated bearing to set up message.In this process, eP-GW, eHSS, PCRF and information application subsystem are carried out Signalling exchange, and multicast ip address is sent to the information application subsystem, are used for issuing the destination address of video traffic data flow.The signing service information of the designated user terminal that PCRF provides according to eHSS and the business information that the information application subsystem provides, generating QoS policy, be handed down to eP-GW, eP-GW distributes cluster dedicated bearing qos parameter according to qos policy, initiates the cluster dedicated bearing and sets up process.
Described qos policy generative process is identical with qos policy generative process in the TD-LTE mobile communication system; Described eP-GW distributes the process of bearer QoS parameters to distribute the process of bearer QoS parameters according to qos policy with eP-GW in the TD-LTE mobile communication system according to qos policy.
Step 407 to step 414 is that eP-GW initiates the detailed process that the cluster dedicated bearing is set up.
Step 407, eP-GW distribute bearing resource according to cluster dedicated bearing qos parameter, and the eP-GW S5/S8TEID of distribution cluster dedicated bearing, send establishment cluster dedicated bearing request (Create Trunking Dedicated Bearer Request) message with backward S-GW, comprise the information such as designated user terminal iidentification, E-eNodeB tabulation, cluster dedicated bearing qos parameter, eP-GW S5/S8TEID in the message.
Step 408, S-GW distribute bearing resource according to cluster dedicated bearing qos parameter, and the S-GW S1-TEID of distribution cluster dedicated bearing, send establishment cluster dedicated bearing request (CreateTrunking Dedicated Bearer Request) message with backward eMME, comprise the information such as designated user terminal iidentification, E-eNodeB tabulation, cluster dedicated bearing qos parameter, S-GW S1-TEID in the message.
After step 409, eMME receive the request message that creates the cluster dedicated bearing, request (Trunking Context SetupRequest) message set up in each E-eNodeB signalling of bouquet context in the E-eNodeB tabulation, carry the information such as designated user terminal iidentification, cluster dedicated bearing qos parameter, multicast ip address, S-GW S1-TEID in the message, indication E-eNodeB allocation of downlink shared resource in the residential quarter that it comprises is used for the receiving video service data flow.
Step 410, E-eNodeB are mapped to wireless qos parameter according to the indication of eMME with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink shared resource.E-eNodeB can carry out two processes concurrently subsequently, and namely step 411 and step 412 are to two processes of step 414.
Step 411, E-eNodeB are with the down link shared resource notice designated user terminal of distributing.E-eNodeB broadcast service notification message periodically in each residential quarter that it comprises, carry the description of down link shared resource, the designated user terminal iidentification that has distributed, the multicast ip address that is used for the receiving video service data flow in the message, and the relevant configuration information of other safety.After the designated user terminal receives service announcements message, can describe according to the shared resource in the message being configured, namely can receive the monitor video business data flow after configuration is finished, this moment, radio bearer was set up.
Step 412, E-eNodeB set up to eMME signalling of bouquet context and finish (Trunking ContextSetup Complete) message, have carried the E-eNodeB S1-TEID that E-eNodeB distributes in the message.
Step 413, eMME send to create cluster dedicated bearing response (Create TrunkingDedicated Bearer Response) message to S-GW immediately, carries the information such as E-eNodeB S1-TEID, TrunkingBearer Identity in the message.
Relation between step 414, S-GW record E-eNodeB S1-TEID and the S-GW S1-TEID, and send to create the foundation that cluster dedicated bearing response (Create Trunking Dedicated BearerResponse) message is confirmed the S5/S8 carrying to eP-GW, carry the S-GW S5/S8TEID that S-GW distributes in the message; Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.So far, the cluster dedicated bearing is set up and is finished.
After step 415, cluster dedicated bearing are set up and are finished, eP-GW and PCRF and information application subsystem are carried out alternately, confirm P-Can Session Establishment, the video monitoring server in the information application subsystem can begin to send the monitor video business data flow at this moment.EP-GW copies, shines upon and be sent to S-GW to the monitor video business data flow, and S-GW sends to each E-eNodeB in the E-eNodeB tabulation with video data stream, is sent at last each designated user terminal.
Embodiment three, and the wireless dispatching desk request issues monitor video to group or the designated user terminal of appointment.
Wired dispatching desk can be realized according to concrete steps as shown in Figure 4 the transmission of monitor video business data flow.Wireless dispatching desk realizes that transmission concrete steps and wired dispatching desk difference of monitor video business data flow are, wireless dispatching desk is to send request monitor video message by the E-eNodeB in the broadband wireless access subsystem to eMME, as shown in Figure 5.
Step 501 to step 502 is wireless dispatching desk sends detailed processes from request monitor video message to eMME.
Step 501, wireless dispatching desk send request monitor video (RequestMonitor Video) message by E-eNodeB to eMME, comprise dispatching desk sign, designated user terminal iidentification, service identification in this message, and the information such as IP address of video monitoring server.
Step 502, eMME carry out alternately with eHSS after receiving the message of request monitor video, and eMME carries out authentication to wireless dispatching desk.If authentication is not passed through, the then request of the request monitor video of eMME refusal wireless dispatching desk; If eMME passes through the authentication of wireless dispatching desk, then eMME is to the information of eHSS request designated user terminal, comprises the information such as E-eNodeB tabulation, multicast ip address at designated user terminal place.
Step 503 is corresponding and identical to step 415 with step 405 to step 513, at this not at repeated description.
In addition, the user terminal that has camera function also can initiatively be uploaded captured monitor video to the information application subsystem.Its process is identical with monitor video upload procedure in the TD-LTE public mobile communication network, and data flow arrives the information application subsystem by E-eNodeB, S-GW and P-GW successively.Detailed process repeats no more herein.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. method that transmits in real time based on monitor video in the wideband digital trunked communication system of TD-LTE technology, system comprises terminal and network side, terminal comprises user terminal or dispatching desk, network side comprises network subsystem, information application subsystem and broadband wireless access subsystem, it is characterized in that the method comprises:
A, terminal send request monitor video message to network subsystem;
After B, network subsystem receive request monitor video message, to terminal authentication;
After C, authentication were passed through, network subsystem and information application subsystem generated QoS policy alternately, and network subsystem distributes cluster dedicated bearing qos parameter according to qos policy;
D, network subsystem be to broadband wireless access subsystem signalling of bouquet dedicated bearing qos parameter, the broadband wireless access subsystem according to cluster dedicated bearing qos parameter allocation of downlink resource after, down-chain resource described being sent to user terminal;
E, user terminal are described according to down-chain resource and are finished each layer configuration;
F, broadband wireless access subsystem are set up to network subsystem signalling of bouquet context and are finished message;
After G, cluster dedicated bearing were set up and finished, information application subsystem and network subsystem carried out alternately, and sent the monitor video business data flow by network subsystem and broadband wireless access subsystem to user terminal.
2. the method that monitor video transmits in real time in the described wideband digital trunked communication system according to claim 1 is characterized in that,
Terminal is user terminal described in the described steps A;
Described in the described step B terminal authentication is finished in described network subsystem, undertaken alternately by enhancement mode mobile management entity eMME and enhancement mode home subscriber server eHSS, realize the authentication to user terminal;
Described step C specifically is included in the network subsystem, sends request cluster dedicated bearing by gateway S-GW to enhanced packet data network gateway eP-GW by eMME and sets up message;
EP-GW initiates IP-Can Session Establishment session establishment process, carry out Signalling exchange between eP-GW in the network subsystem, eHSS, "Policy and Charging Rules Function entity PCRF and the information application subsystem, the business information generating QoS policy that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide also is handed down to eP-GW;
EP-GW distributes cluster dedicated bearing qos parameter according to qos policy;
Described step D comprises that specifically eP-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the eP-GW S5/S8 TEID of cluster dedicated bearing, then sends to S-GW and creates cluster dedicated bearing request message;
S-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the S-GW S1-TEID of cluster dedicated bearing, then sends to eMME and creates cluster dedicated bearing request message;
After eMME received and creates cluster dedicated bearing request message, request message set up in the E-eNodeB signalling of bouquet context in the broadband wireless access subsystem, carries cluster dedicated bearing qos parameter in this message;
E-eNodeB is mapped as wireless qos parameter with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource, the down-chain resource description is sent to user terminal;
Described step F is to be set up to eMME signalling of bouquet context by E-eNodeB to finish message;
Also comprise,
Send establishment cluster dedicated bearing by eMME to S-GW and set up response message;
S-GW records the relation between E-eNodeB S1-TEID and the S-GW S1-TEID, and sets up the foundation that response message is confirmed the S5/S8 carrying to eP-GW transmission establishment cluster dedicated bearing;
Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.
3. the method that monitor video transmits in real time in the described wideband digital trunked communication system according to claim 2 is characterized in that,
The monitor video of request described in described steps A message comprises user terminal identification, service identification and video monitoring server IP address;
The cluster of request described in described step C dedicated bearing is set up message and is comprised user terminal identification, service identification, video surveillance server IP address;
EP-GW described in the described step D sends to S-GW and creates cluster dedicated bearing request message, comprises user terminal identification, cluster dedicated bearing qos parameter, eP-GW S5/S8 TEID in this message;
Described S-GW comprises user terminal identification, cluster dedicated bearing qos parameter, S-GW S1-TEID to the establishment cluster dedicated bearing request message that eMME sends in this message;
Described cluster context is set up in the request message and is also carried, and it is that user terminal divides the down-chain resource that is used in the receiving video service data flow that user terminal identification, S-GW S1-TEID, described cluster context set up request message indication E-eNodeB.
4. the method that monitor video transmits in real time in the described wideband digital trunked communication system according to claim 1 is characterized in that,
Terminal in the described steps A is wired dispatching desk; Described transmission request monitor video message is finished in described network subsystem, specifically comprises:
Wired dispatching desk sends request monitor video message to scheduling gateway D-GW;
D-GW and eHSS carry out alternately, to wired dispatching desk authentication;
D-GW passes through the authentication of wired dispatching desk, and D-GW will ask monitor video message to be forwarded to eMME;
Described in the described step B terminal authentication is comprised that eMME carries out alternately with eHSS after receiving request monitor video message, eMME carries out authentication to the user terminal of appointment;
Described step C comprises that specifically eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up message;
EP-GW initiates IP-Can Session Establishment process, carry out Signalling exchange between eP-GW, eHSS, PCRF and the information application subsystem, the business information generating QoS policy that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide also is handed down to eP-GW;
EP-GW distributes cluster dedicated bearing qos parameter according to qos policy;
Described step D comprises that specifically eP-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the eP-GW S5/S8 TEID of cluster dedicated bearing, then sends to S-GW and creates cluster dedicated bearing request message;
S-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the S-GW S1-TEID of cluster dedicated bearing, then sends to eMME and creates cluster dedicated bearing request message;
After eMME received and creates cluster dedicated bearing request message, request message set up in the E-eNodeB signalling of bouquet context in the broadband wireless access subsystem, carries cluster dedicated bearing qos parameter in this message;
E-eNodeB is mapped as wireless qos parameter with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource, the down-chain resource description is sent to user terminal;
Described step F is to be set up to eMME signalling of bouquet context by E-eNodeB to finish message;
Also comprise,
Send establishment cluster dedicated bearing by eMME to S-GW and set up response message;
S-GW records the relation between E-eNodeB S1-TEID and the S-GW S1-TEID, and sets up the foundation that response message is confirmed the S5/S8 carrying to eP-GW transmission establishment cluster dedicated bearing;
Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8TEID.
5. the method that monitor video transmits in real time in the described wideband digital trunked communication system according to claim 1 is characterized in that described method comprises:
Terminal in the described steps A is wireless dispatching desk; Described transmission request monitor video message is finished in described network subsystem, specifically comprises:
Wireless dispatching desk sends request monitor video message by E-eNodeB to eMME;
EMME carries out alternately with eHSS after receiving request monitor video message, and eMME passes through the authentication of wireless dispatching desk, and eMME sends request monitor video message to eHSS;
Described in the described step B terminal authentication is comprised that eMME carries out alternately with eHSS after receiving request monitor video message, eMME carries out authentication to the user terminal of appointment;
Described step C comprises that specifically eMME sends request cluster dedicated bearing by S-GW to eP-GW and sets up message;
EP-GW initiates IP-Can Session Establishment process, carry out Signalling exchange between eP-GW, eHSS, PCRF and the information application subsystem, the business information generating QoS policy that the user terminal signing service information that PCRF provides according to eHSS and information application subsystem provide also is handed down to eP-GW;
EP-GW distributes cluster dedicated bearing qos parameter according to qos policy;
Described step D comprises that specifically eP-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the eP-GW S5/S8 TEID of cluster dedicated bearing, then sends to S-GW and creates cluster dedicated bearing request message;
S-GW distributes bearing resource according to cluster dedicated bearing qos parameter, and distributes the S-GW S1-TEID of cluster dedicated bearing, then sends to eMME and creates cluster dedicated bearing request message;
After eMME received and creates cluster dedicated bearing request message, request message set up in the E-eNodeB signalling of bouquet context in the broadband wireless access subsystem, carries cluster dedicated bearing qos parameter in this message;
E-eNodeB is mapped as wireless qos parameter with cluster dedicated bearing qos parameter, and according to wireless qos parameter allocation of downlink resource, the down-chain resource description is sent to user terminal;
Described step F is to be set up to eMME signalling of bouquet context by E-eNodeB to finish message;
Also comprise,
Send establishment cluster dedicated bearing by eMME to S-GW and set up response message;
S-GW records the relation between E-eNodeB S1-TEID and the S-GW S1-TEID, and sets up the foundation that response message is confirmed the S5/S8 carrying to eP-GW transmission establishment cluster dedicated bearing;
Relation between eP-GW record S-GW S5/S8TEID and the eP--GW S5/S8 TEID.
6. the method that monitor video transmits in real time according to claim 4 or in the 5 described wideband digital trunked communication systems is characterized in that,
The monitor video of request described in described steps A message comprises dispatching desk sign, designated user terminal iidentification, service identification and video monitoring server IP address;
The cluster of request described in described step C dedicated bearing is set up message and is comprised designated user terminal iidentification, E-eNodeB tabulation, multicast ip address, video surveillance server IP address;
EP-GW described in the described step D sends to S-GW and creates cluster dedicated bearing request message, comprises designated user terminal iidentification, E-eNodeB tabulation, cluster dedicated bearing qos parameter, eP-GW S5/S8 TEID in this message;
Described S-GW comprises designated user terminal iidentification, E-eNodeB tabulation, cluster dedicated bearing qos parameter, S-GW S1-TEID to the establishment cluster dedicated bearing request message that eMME sends in this message;
Described cluster context is set up in the request message and is also carried, it is that user terminal divides the down-chain resource that is used in the receiving video service data flow that designated user terminal iidentification, multicast ip address, S-GW S1-TEID, described cluster context set up request message indication E-eNodeB.
7. the method that monitor video transmits in real time according to claim 4 or in the 5 described wideband digital trunked communication systems is characterized in that, described step D and step e walk abreast and carry out.
8. the method that monitor video transmits in real time in the described wideband digital trunked communication system according to claim 1 is characterized in that, further comprises before the described steps A,
Network registry is carried out in the user terminal start, and sets up default bearer;
User terminal carries out the registration of group service by sending non-access layer information to the enhancement mode mobile management entity eMME in the network subsystem;
Network subsystem is to subscriber terminal authority;
After network subsystem passes through subscriber terminal authority, return group service registration receipt message to user terminal.
9. according to claim 2, monitor video transmits in real time in the described wideband digital trunked communication system of 4 or 5 any claims method, it is characterized in that information application subsystem and network subsystem carry out comprising alternately among the described step G
EP-GW, PCRF and information application subsystem are carried out alternately, the information application subsystem is confirmed IP-Can Session Establishment session establishment, and the video monitoring server in the indication information application subsystem begins to send described monitor video business data flow.
10. the method that monitor video transmits in real time in the described wideband digital trunked communication system according to claim 1 is characterized in that, sends the monitor video business data flow by network subsystem and broadband wireless access subsystem to user terminal among the described step G, comprises
EP-GW copies, shines upon and be sent to S-GW to the monitor video business data flow, and S-GW sends to E-eNodeB with the monitor video data flow, and is sent to user terminal by E-eNodeB.
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