CN-117440344-B - Dynamic networking method of mobile communication system

CN117440344BCN 117440344 BCN117440344 BCN 117440344BCN-117440344-B

Abstract

The invention discloses a dynamic networking method of a mobile communication system. According to the invention, the mobile communication system and the fixed deployment communication system are cooperatively configured with the user subscription information, the user subscription information operation state, the signaling routing strategy, the vehicle-mounted communication system networking mode and other information according to the operation state of the mobile communication system by the set unified service operation support system BOSS, so that dynamic networking between the mobile communication system and the fixed deployment communication system, between multiple mobile communication systems, flexible switching of users between different systems and service intercommunication among users of different communication systems are realized. The BOSS system is deployed on the fixed network side, and the fixed network and the vehicle-mounted communication system share the BOSS. The invention can realize that the user can access the fixed deployment network system when the vehicle-mounted system is closed, and re-access the vehicle-mounted communication system when the vehicle-mounted system is opened, thereby providing flexible communication service for the vehicle-mounted communication system user and not affecting the normal service of the fixed network system user.

Inventors

ZHANG SHUNLIANG
ZHU DALI
ZHANG XIAOHUI
LI JING

Assignees

中国科学院信息工程研究所

Dates

Publication Date: 20260512
Application Date: 20220712

Claims (9)

1. A dynamic networking method between a mobile communication system and a fixed communication system comprises the following steps: 1) The method comprises the steps of setting a unified service operation supporting system, configuring the user subscription information of a vehicle-mounted communication system into a user subscription server of a fixed network according to the operation state of the vehicle-mounted system, and configuring the user subscription information of the vehicle-mounted communication system into the user subscription server of the vehicle-mounted communication system; 2) The network management agent OAM-agent of the vehicle-mounted communication system generates a request for opening or closing the vehicle-mounted communication system according to the perceived interference condition of the fixed network or the user demand, and sends the request to the unified service operation support system; 3) The unified service operation support system remotely opens or closes the vehicle-mounted communication system according to the request, and then generates a state update instruction according to the operation state of the vehicle-mounted communication system and sends the state update instruction to a user subscription server in a fixed network; 4) The user subscription server in the fixed network updates the state of the user subscription information of the vehicle-mounted communication system in the fixed network according to the received state updating instruction, if the current state of the vehicle-mounted communication system is closed, the state of the user subscription information of the corresponding vehicle-mounted communication system in the fixed network is set to be opened and accessed to the corresponding user, otherwise, the state is set to be closed; 5) The unified service operation support system determines an access signaling routing strategy of a corresponding vehicle-mounted user in a fixed network according to the running state of the vehicle-mounted communication system, wherein if the running state of the vehicle-mounted communication system is closed, the signaling routing strategy of the corresponding vehicle-mounted user in the fixed network is an addressing fixed network signing server, otherwise, the signaling routing strategy of the corresponding vehicle-mounted user in the fixed network is an addressing vehicle-mounted communication system network signing server; 6) The unified service operation support system sends an access signaling routing strategy updating instruction to a control plane functional unit in the fixed network; 7) The control plane function unit MME in the fixed network updates the signaling routing policy information of the corresponding user according to the received access signaling routing policy updating instruction; 8) The unified service operation support system sends a call signaling routing strategy updating instruction to a control plane function unit TCF in a fixed network; 9) The control plane function (TCF) in the fixed network updates the user call signaling routing strategy information according to the received call signaling routing strategy updating instruction; 10 The unified service operation support system determines the IP address information of a signing server or a control surface functional unit TCF of a vehicle-mounted user in DNS or ENUM equipment in a fixed network according to the running state of the vehicle-mounted communication system, if the state of the vehicle-mounted communication system is closed, the IP address of the signing server or the control surface functional unit TCF of the vehicle-mounted user configured in the DNS or the ENUM equipment is updated to the IP address of the corresponding function in the fixed network, otherwise, the IP address of the corresponding function in the vehicle-mounted network is updated; 11 The control surface functional unit of the vehicle-mounted communication system configures the control surface functional unit route addressing information according to the service identifier MSISDN of the called user, and performs signaling or service data interaction with the control surface functional unit in the fixed network; 12 When the user subscription server in the fixed network receives the authentication data request of the vehicle-mounted user, determining whether the vehicle-mounted user is allowed to access according to the user subscription information state, if the subscription information state is closed, refusing the vehicle-mounted user to access, otherwise, performing user access authentication according to the normal access flow.
2. The method of claim 1, wherein the subscriber subscription server is a HSS, THSS or UDM.
3. The method of claim 2, wherein the access signaling routing policy update instruction includes an identification IMSI of the user and an IP address of a corresponding HSS/THSS/UDM, and wherein the call signaling routing policy update instruction includes a service identification MSISDN of the user and an IP address of a corresponding TCF/TMF.
4. The method according to claim 1, wherein the unified service operation support system sends the call signaling routing policy update instruction to a control plane function TCF in the fixed network and the access signaling routing policy update instruction to a control plane function MME in the fixed network through a network management interface protocol.
5. The method of claim 1, wherein the unified service operation support system remotely turns on or off the on-board communication system through a network management command.
6. The method according to claim 1, wherein in step 12), when the vehicle-mounted communication system is in an on state, the IP address information of the TCF/TMF corresponding to the service identifier MSISDN is set to the IP address of the control plane function unit in the vehicle-mounted communication system, and when the vehicle-mounted communication system is in an off state, the IP address information of the control plane function unit corresponding to the service identifier MSISDN is set to the IP address of the control plane function unit in the fixed network.
7. A method for dynamically networking between multiple vehicle-mounted communication systems comprises the following steps: 1) The method comprises the steps of setting a unified service operation support system, selecting one vehicle as a main vehicle in a vehicle team, and selecting other vehicles as auxiliary vehicles, wherein each vehicle in the vehicle team is provided with a vehicle-mounted base station and a vehicle-mounted core network; 2) The main vehicle reports the operation modes of the vehicle-mounted communication system of the main vehicle to the unified service operation support system, wherein the operation modes comprise a fleet main vehicle mode, a fleet auxiliary vehicle mode and a single vehicle mode, and each vehicle-mounted system only operates in one mode at the same time; 3) The unified service operation support system configures user subscription information of the vehicle-mounted communication system of the main vehicle and each auxiliary vehicle to a user subscription server of the main vehicle; 4) A bicycle A leaving the motorcade or a vehicle-mounted base station requesting to join the bicycle of the motorcade sends a heartbeat detection request packet to a control surface function unit MME and a service gateway S-GW of the host; 5) If the bicycle A receives the heartbeat detection response packet of the main bicycle within a certain time interval, entering a bicycle team or the bicycle A to restore the connection with the main workshop and switch to an auxiliary bicycle mode, otherwise, only maintaining the original running mode; 6) The bicycle A reports the operation mode of the vehicle-mounted communication system to the unified service operation support system as a motorcade auxiliary vehicle; 7) The unified service operation support system configures the user subscription information state of the vehicle-mounted communication system of the auxiliary vehicle A to be on in a user subscription server of the vehicle-mounted communication system of the main vehicle, and a vehicle-mounted core network of the main vehicle configures a vehicle-mounted base station equipment ID or IP address of the auxiliary vehicle A; 8) The unified service operation support system configures the vehicle-mounted core network addressing information of the main vehicle to the vehicle-mounted base station of the auxiliary vehicle A; 9) The base station of each auxiliary vehicle sends a heartbeat detection request packet to the control surface functional unit and the S-GW of the main vehicle; 10 If any auxiliary vehicle i does not receive the heartbeat detection response packet replied by the main vehicle within the set time, judging that the connection between the auxiliary vehicle i and the self-networking of the main vehicle fails and is switched to a single vehicle mode, and performing the steps 11) to 13), otherwise, maintaining the original operation mode; 11 Reporting the operation mode of the vehicle-mounted communication system to the unified service operation support system by the auxiliary vehicle i as a single-vehicle independent mode; 12 The unified service operation support system configures the user subscription information state of the vehicle-mounted communication system of the auxiliary vehicle i to be closed in a user subscription server of the vehicle-mounted communication system of the main vehicle, and deletes the vehicle-mounted base station equipment ID or IP address of the auxiliary vehicle i from the vehicle-mounted core network of the main vehicle; 13 The unified service operation support system configures core network addressing information to the vehicle-mounted base station equipment of the auxiliary vehicle i as the IP addresses of a control plane function unit MME, a user plane function S-GW/P-GW and TMF of the auxiliary vehicle i, and switches the auxiliary vehicle i to a single vehicle independent mode, wherein the single vehicle base station is connected to the vehicle-mounted core network and independently serves users of the single vehicle i.
8. The method of claim 7, wherein the control plane functional unit comprises a mobility management entity MME, a trunked control plane function TCF, and wherein the user plane functions comprise a serving gateway S-GW, a packet gateway P-GW, a user plane function UPF, and a trunked media plane function TMF.
9. The method of claim 7, wherein the subscriber subscription server is a HSS, THSS, or UDM.

Description

Dynamic networking method of mobile communication system Technical Field The invention relates to the field of dynamic networking of broadband mobile communication systems, in particular to a dynamic networking method between a vehicle-mounted mobile communication system and a fixed deployment communication system or between vehicle-mounted mobile communication systems. Background Mobile communication network services have been widely used in daily life of people due to their mobility and convenience. With the rapid development of mobile communication technology, mobile communication network-based services are increasingly used. The service interworking between communication systems of different deployment forms and the switching of users between different systems under dynamic environment can also affect the network service experience of users while enjoying the convenience brought by the mobile communication network. In-vehicle communication systems play a unique role in emergency scenarios with the ability to wirelessly communicate in excellent areas of mobility. Because available spectrum resources are limited, the vehicle-mounted broadband mobile emergency network is difficult to monopolize special frequency band resources, and spectrum resources are shared between the vehicle-mounted mobile network and the fixed deployment network to form an unavoidable use scene. When the vehicle-mounted communication system enters the fixed network deployment area, the vehicle-mounted communication system needs to be closed in order to avoid interference to the fixed network, and the vehicle-mounted user terminal needs to be switched to the fixed network to continue enjoying service. When the vehicle leaves the fixed network deployment area, the vehicle-mounted communication system needs to be opened, and the vehicle-mounted user terminal needs to be switched to the vehicle-mounted communication system again to continue enjoying the service, as shown in fig. 1. How to realize the dynamic networking of the dynamic-change vehicle-mounted communication system and the fixed network to meet the switching of the vehicle-mounted user among different systems becomes a problem which is urgently needed to be solved. The existing broadband vehicle-mounted communication system is mainly used for independently providing services for vehicle-mounted users in an environment without fixed network coverage, the situation that the vehicle-mounted communication system is dynamically closed when entering the fixed network coverage is not considered at present, the situation that the vehicle-mounted users access the fixed network when the vehicle-mounted communication system is dynamically closed is not considered, the situation that the vehicle-mounted communication system is dynamically opened and closed is not considered, and the problem of trunking service single call and group call intercommunication between the vehicle-mounted users and the users of the fixed deployment network cannot be solved. Therefore, the dynamic switching condition of the vehicle-mounted communication system, the flexible switching between the vehicle-mounted communication system and the fixed deployment network and the intercommunication between the vehicle-mounted user and the fixed deployment network user cannot be realized. Further, a follow-up campaign process is being performed. A plurality of vehicles need to temporarily form a motorcade, each vehicle is provided with accompanying personnel, and the problem of how to realize single call among the vehicle-mounted users of different vehicle-mounted communication systems and the cooperative command and dispatch of group call business intercommunication becomes a reality. Abnormal situations or emergency tasks may occur in the following process, wherein one vehicle or a plurality of vehicles may leave the vehicle team to act independently, so that a certain vehicle-mounted communication system in the vehicle team needs to serve its own vehicle-mounted user independently, and how to realize dynamic networking of a plurality of vehicle-mounted communication systems to meet the switching of the vehicle-mounted users between different vehicle-mounted communication systems and communication service intercommunication among users of different vehicle-mounted communication systems become a key problem, as shown in fig. 2. The existing vehicle-mounted communication system scheme mainly considers how to independently provide regional mobile network service for vehicle-mounted users in a single-vehicle environment, and how to realize single call and group call service intercommunication among different vehicle-mounted communication system users under the condition that a plurality of communication vehicles form a vehicle team. In addition, the existing scheme can not realize dynamic networking of a plurality of vehicle-mounted communication systems, and the group calling and single call service intercommunication a