CN102355653B - Inter-terminal communication method, control equipment, user equipment, base station and network system - Google Patents

Abstract

The present invention provides an inter-terminal communication method, a control device, a user equipment, a base station, and a network system. The inter-terminal communication method includes determining the location information of the first UE corresponding to the service, and the second UE according to the service attribute sent by the first user equipment UE. The location information of the UE and the communication capability information between the first UE and the second UE; determine the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE A communication method between a UE and a second UE, generating indication information; sending the indication information to the first UE. In the inter-terminal communication method, control device, user equipment, base station, and network system provided by the present invention, different communication modes between the first UE and the second UE can be selected, avoiding problems caused by forwarding service data only through the core network The problem of increased core network load improves the flexibility of communication between terminals.

Description

Inter-terminal communication method, control device, user equipment, base station and network system

technical field

The present invention relates to communication technology, in particular to an inter-terminal communication method, control equipment, user equipment, base station and network system.

Background technique

At present, the mobile communication network system consists of a core network and an access network. The core network includes multiple logical nodes, which are responsible for the overall control of user equipment and the establishment of related bearers. The access network only corresponds to the base station that provides access to users, or the base station and the radio network controller (Radio Network Controller, RNC for short), which are responsible for wireless related functions. The data services of users accessing the Internet or the interactive services between users are all aggregated through the service gateway. Through the processing of the core network, the user data packets are delivered to the corresponding service bearers, and reach the target address of the user access or send them to the target terminal.

With the development of mobile Internet, interactive services based on transmission between users will be widely used. Both data accessing the Internet and data interacting between users will be aggregated to the core network. The data processing capability of the core network and the transmission resources for aggregation and access will face enormous pressure, and will gradually become a network bottleneck, making it difficult to support the transmission of huge data services.

Contents of the invention

The invention provides a communication method between terminals, control equipment, user equipment, a base station and a network system, so as to improve the flexibility of communication between terminals.

The present invention provides a communication method between terminals, including:

According to the service attribute sent by the first user equipment UE, determine the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE corresponding to the service, wherein , the service attribute is an attribute of the service;

Determine the communication between the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE A communication mode, generating indication information used to indicate a communication mode between the first UE and the second UE;

sending the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information.

The present invention provides a communication method between terminals, including:

The first UE initiates a service with the second UE, and sends the service attribute;

The first UE receives the indication information corresponding to the service attribute, and communicates with the second UE according to the indication information.

The present invention provides an inter-terminal communication control device, including:

The location capability information determination module is configured to determine the location information of the first UE, the location information of the second UE, and the location information of the first UE and the second UE corresponding to the service according to the service attribute sent by the first user equipment UE. Communication capability information between them, wherein the service attribute is the attribute of the service;

A communication mode determining module, configured to determine the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE. The communication mode between the second UE, generating indication information used to indicate the communication mode between the first UE and the second UE;

A sending module, configured to send the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information.

The present invention provides a user equipment, including:

A service initiation module, configured to initiate a service with the second UE, and send service attributes;

A communication module, configured to receive indication information corresponding to the service attribute, and communicate with the second UE according to the indication information.

The present invention provides a base station, which is characterized by including the inter-terminal communication control device provided by the present invention.

The present invention provides a network system, including a core network provided with a home location server and a policy control function entity, and is characterized in that it also includes: the base station provided by the present invention and the user equipment provided by the present invention.

It can be seen from the above technical solution that the inter-terminal communication method, the control device, the user equipment, the base station and the network system provided by the present invention determine the location information of the first UE corresponding to the service, the second The location information of the UE and the communication capability information between the first UE and the second UE, and the first UE is determined according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE. The communication mode between the UE and the second UE, generating indication information used to indicate the communication mode between the first UE and the second UE, and sending the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information to communicate. The communication mode between the first UE and the second UE can be selected according to the location of the first UE, the location of the second UE, and the communication capabilities between the two, avoiding the problem caused by forwarding service data only through the core network. The problem of increased core network load improves the flexibility of communication between terminals.

Description of drawings

FIG. 1 is a flowchart of a communication method between terminals provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a mobile communication network system provided by an embodiment of the present invention;

FIG. 3 is a flow chart of another communication method between terminals provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an inter-terminal communication control device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a user equipment provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. It should be noted that, in the drawings or description, similar or identical elements all use the same reference signs.

FIG. 1 is a flowchart of a communication method between terminals provided by an embodiment of the present invention. As shown in FIG. 1, the inter-terminal communication method provided in this embodiment can be specifically applied to the control of communication between terminals, that is, user equipment (User Equipment, UE for short) in the mobile communication network system shown in FIG. The inter-terminal communication control device may perform the execution, and the inter-terminal communication control device may specifically be a direct management control entity. The inter-terminal communication control device can be centrally set in the mobile management entity (Mobile Management Entity, referred to as MME) of the core network, can also be distributed in the I-Node, and can also be set separately.

The inter-terminal communication method provided in this embodiment specifically includes:

Step S10, according to the service attribute sent by the first user equipment UE, determine the location information of the first UE corresponding to the service, the location information of the second UE, and the communication capability information between the first UE and the second UE, wherein the service attribute is an attribute of the business;

The first UE initiates a service with the second UE, and sends the service attribute of the service. The service attribute may specifically include the service source identifier, the service destination identifier, and the service QoS attribute. According to the service attribute, it can be determined whether it is a traditional service or a direct data connection business. The traditional business uses the traditional data transmission method, and the data direct service adopts the data direct transmission method. Traditional services mainly include data services for accessing the Internet or data services deployed by operators on the core network (such as IMS services); data direct services mainly include distributed data services that interact between users (such as two in- data transmission services between UEs in the mobile communication network), etc. Specifically, the first UE may first send the service attribute to the I-Node accessed by the first UE, and then the I-Node sends the service attribute to the inter-terminal communication control device. If the inter-terminal communication control device is set in each I-Node in the network, it can directly receive the service attribute sent by the first UE. Specifically, if the service is a data direct service, the inter-terminal communication control device determines the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE corresponding to the service. Specifically, the HSS may store relevant information of UEs and I-Nodes in the network, including location information, capability information, and authentication information. The inter-terminal communication control device may determine the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE according to information stored in a home location server HSS (Home Subscriber Server). The relevant information of UE and I-Node in the network may also be stored in other control devices, and the location information of the first UE may also be provided when the first UE sends service attributes, which is not limited to this embodiment. The location information of the first UE and the second UE may be specifically used to indicate the I-Node accessed by the first UE and the second UE, the cell where the first UE and the second UE are located, and the like. The communication capability information between the first UE and the second UE may be specifically used to indicate whether direct data transmission is supported between the first UE and the second UE.

Step S20: Determine the communication mode between the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE, and generate an Indication information of a communication mode between the UE and the second UE;

The inter-terminal communication control device determines the communication mode between the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE. The second communication mode between UEs may specifically include a direct data transmission mode between UEs, a data forwarding and transmission mode in the same I-Node, a direct data transmission mode between different I-Nodes, a core network data forwarding and transmission mode, and the like. The communication method with the second UE can be selected according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE, not limited to forwarding and transmitting service data through the core network .

Step S30, sending the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information.

Specifically, the inter-terminal communication control device may first send the indication information to the I-Node accessed by the first UE, and then the I-Node sends the indication information to the first UE. If the inter-terminal communication control device is set in each I-Node in the network, it can directly send the indication information to the first UE.

The inter-terminal communication method provided in this embodiment determines the location information of the first UE corresponding to the service, the location information of the second UE, and the communication between the first UE and the second UE according to the service attribute sent by the first user equipment UE. Capability information, according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE to determine the communication mode between the first UE and the second UE, and generate a message indicating the first The indication information of the communication mode between the UE and the second UE is sent to the first UE, so that the first UE communicates with the second UE according to the indication information. The communication mode between the first UE and the second UE can be selected according to the location of the first UE, the location of the second UE, and the communication capabilities between the two, avoiding the problem caused by forwarding service data only through the core network. The problem of increased core network load improves the flexibility of communication between terminals.

In this embodiment, step S30, after sending the indication information to the first UE, may specifically include the following steps:

Step S40, receiving the statistical information sent by the first UE, and performing charging processing on the statistical information according to the charging rule obtained from the policy control function entity PGRF.

Specifically, the first UE communicates with the second UE according to the indication information, and during the communication process, the first UE performs statistics to generate statistical information, and the statistical information may specifically include information used for charging. The first UE may first send the statistical information to the I-Node accessed by the first UE, and then the I-Node sends the statistical information to the inter-terminal communication control device. If the inter-terminal communication control device is set in each I-Node in the network, it can directly receive the statistical information sent by the first UE. Charging rules are specifically stored in the PGRF, and the statistical information can be charged according to the charging rules. The first UE reports the statistical information, and the core network delegates the charging management and control function to the inter-terminal communication control device, further reducing the burden on the core network.

In this embodiment, in step S20, the communication mode between the first UE and the second UE is determined according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE, Specifically can include:

Step S201, if it is determined that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is that of the first UE and the second UE If the capability information indicates that direct data transmission is supported between the first UE and the second UE, it is determined that the communication mode between the first UE and the second UE is a direct data transmission mode between UEs;

Step S202, if it is determined that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is the same as that between the first UE and the second UE does not support direct data transmission, then determine that the communication mode between the first UE and the second UE is the same I-Node data forwarding transmission mode;

Step S203, if it is determined that the I-Node accessed by the second UE is different from the I-Node accessed by the first UE, determine the difference between the I-Node accessed by the first UE and the I-Node accessed by the second UE If it is determined that the communication capability information between the I-Node accessed by the first UE and the I-Node accessed by the second UE is the communication capability information between the I-Node accessed by the first UE and the I-Node accessed by the second UE If direct data transmission is supported between I-Nodes, it is determined that the communication mode between the first UE and the second UE is a direct data transmission mode between different I-Nodes;

Step S204, otherwise, determine that the communication mode between the first UE and the second UE is the core network data forwarding transmission mode.

It should be noted that step S201-step S204 do not have a necessary sequence relationship. The inter-terminal communication control device judges the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE, and performs corresponding steps according to the judgment result.

In this embodiment, the first UE communicates with the second UE according to the indication information, which may specifically include the following steps:

Step S501, if the indication information is direct data transmission between UEs, the first UE sends service data to the second UE;

Step S502, if the indication information is the same I-Node data forwarding transmission mode, the first UE sends the service data to the second UE via the I-Node accessed by the first UE;

Step S503, if the indication information is the direct data transmission mode between different I-Nodes, the first UE sends the service data to the second UE via the I-Node accessed by the first UE and the I-Node accessed by the second UE;

Step S504, if the indication information is the core network data forwarding transmission mode, the first UE sends the service data to the second UE via the I-Node accessed by the first UE, the core network, and the I-Node accessed by the second UE.

Step S501-step S504 also do not have a necessary sequence relationship. The content of the indication information sent by the inter-terminal communication control device is different, and the communication modes of the first UE and the second UE are also different.

FIG. 3 is a flowchart of another communication method between terminals provided by an embodiment of the present invention. As shown in FIG. 3 , the inter-terminal communication method provided in this embodiment may be specifically applied to a communication process between UEs in a mobile communication network system. It can be implemented in conjunction with the inter-terminal communication method applied to the inter-terminal communication control device provided in the above-mentioned embodiments, which will not be repeated here. The inter-terminal communication method provided in this embodiment specifically includes:

Step U10, the first UE initiates a service with the second UE, and sends the service attribute;

Step U20, the first UE receives the indication information corresponding to the service attribute, and communicates with the second UE according to the indication information.

In the inter-terminal communication method provided in this embodiment, the first UE initiates a service with the second UE, and sends the service attribute to the inter-terminal communication control device, so that the inter-terminal communication control device determines the location information of the first UE corresponding to the service, The location information of the second UE and the communication capability information between the first UE and the second UE are judged on the location information of the first UE, the location information of the second UE, and the communication capability information between them, and the Indication information indicating a communication manner between the first UE and the second UE. The first UE communicates with the second UE according to the indication information. The communication mode between the first UE and the second UE can be selected according to the location and capability of the second UE, which avoids the problem of increasing the load of the core network caused by forwarding service data only through the core network, and improves the communication between terminals. Communication flexibility.

In this embodiment, step U20, after the first UE receives the indication information corresponding to the service attribute, and communicates with the second UE according to the indication information, the following steps may be specifically included:

Step U30, the first UE collects statistics on the communication process with the second UE, generates statistical information and sends it.

In this embodiment, in step U20, the first UE communicates with the second UE according to the indication information, which may specifically include the following steps:

Step U201, if the first UE judges that the instruction information is direct data transmission between UEs, then send the service data to the second UE;

Step U202, if the first UE determines that the indication information is the same I-Node data forwarding transmission mode, then send the service data to the second UE via the I-Node accessed by the first UE;

Step U203, if the first UE judges that the indication information is direct data transmission between different I-Nodes, then the service data will be sent to the second UE via the I-Node accessed by the first UE and the I-Node accessed by the second UE. UE;

Step U204, if the first UE judges that the indication information is the core network data forwarding transmission mode, the service data will be sent to the second UE via the I-Node accessed by the first UE, the core network and the I-Node accessed by the second UE. UE.

Step U201-Step U204 also do not have a necessary sequence relationship. The first UE communicates with the second UE according to the communication manner indicated by the indication information.

FIG. 4 is a schematic structural diagram of an inter-terminal communication control device provided by an embodiment of the present invention. As shown in FIG. 4, the inter-terminal communication control device provided in this embodiment can specifically implement each step of the inter-terminal communication method applied to the inter-UE communication control in the mobile communication network system provided by any embodiment of the present invention, which is not repeated here. repeat. The inter-terminal communication control device provided in this embodiment specifically includes a location capability information determining module 11 , a communication mode determining module 12 and a sending module 13 . The location capability information determination module 11 is used to determine the location information of the first UE corresponding to the service, the location information of the second UE, and the communication capability information between the first UE and the second UE according to the service attribute sent by the first user equipment UE , where the business attribute is the attribute of the business. The communication method determination module 12 is used to determine the communication method between the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE, and generate The indication information indicating the communication mode between the first UE and the second UE is used. The sending module 13 is configured to send the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information.

In the inter-terminal communication control device provided in this embodiment, the location capability information determination module 11 determines the location information of the first UE corresponding to the service, the location information of the second UE, and the location information of the first UE and the first UE according to the service attribute sent by the first user equipment UE. For the communication capability information between the second UE, the communication method determining module 12 determines the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE. The communication mode between UEs generates indication information for indicating the communication mode between the first UE and the second UE, and the sending module 13 sends the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information communication. The communication mode between the first UE and the second UE can be selected according to the location of the first UE, the location of the second UE, and the communication capabilities between the two, avoiding the problem caused by forwarding service data only through the core network. The problem of increased core network load improves the flexibility of communication between terminals.

In this embodiment, the inter-terminal communication control device may specifically further include a statistical information processing module. The statistical information processing module is configured to receive the statistical information sent by the first UE, and perform charging processing on the statistical information according to the charging rule obtained from the policy control function entity PGRF.

In this embodiment, the communication method determination module is specifically also used to determine that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication between the first UE and the second UE If the capability information indicates that direct data transmission is supported between the first UE and the second UE, it is determined that the communication mode between the first UE and the second UE is the direct data transmission mode between UEs; if it is determined that the I-Node accessed by the second UE It is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is that direct data transmission is not supported between the first UE and the second UE, then it is determined that the first UE and the second UE The communication mode between UEs is the same I-Node data forwarding transmission mode; if it is judged that the I-Node accessed by the second UE is different from the I-Node accessed by the first UE, then determine the I-Node accessed by the first UE The communication capability information between the I-Node accessed by the second UE, if it is determined that the communication capability information between the I-Node accessed by the first UE and the I-Node accessed by the second UE is If the I-Node accessed by the second UE supports direct data transmission between the I-Node accessed by the second UE, it is determined that the communication mode between the first UE and the second UE is the direct data transmission mode between different I-Nodes; A communication mode between a UE and a second UE is a core network data forwarding transmission mode.

In the actual mobile network construction process, the inter-terminal communication control device can be responsible for the management and control of data direct transmission. The inter-terminal communication control device is provided with the first control plane interface connected to the I-Node, and the first control plane interface connected to the HSS. The second control plane interface is the third control plane interface connected to the PCRF. The UE is provided with a first data interface for direct data transmission with other UEs, and a second data interface for direct data transmission with the I-Node. The I-Node is provided with a third data interface for direct data transmission with other I-Nodes. The source UE and the target UE may be connected through the first data interface, and directly transmit the data of the source UE to the target UE. Two UEs under the same I-Node can be respectively connected to the I-Node through the second data interface, the source UE uploads data to the I-Node, and the I-Node sends the data to the target UE. Two UEs under different I-Nodes can be respectively connected to the corresponding I-Node through the second data interface, and the two I-Nodes are connected through the third data interface, and the source UE uploads the data to the source I-Node, The source I-Node forwards the data to the target I-Node and then delivers the data to the target UE.

The inter-terminal communication control device is connected to the base station through the first control plane interface, and the two transmit control signaling through the first control plane interface. The inter-terminal communication control device is connected to the HSS through the second control plane interface, and the two transmit control signaling through the second control plane interface. The inter-terminal communication control device is connected to the PCRF through the third control plane interface, and the two transmit control signaling through the third control plane interface.

Specifically, the inter-terminal communication control device may have the following functions:

Interconnection architecture management: I-Node interconnection direct network construction, responsible for establishing, maintaining and destroying data direct channels, and IP address allocation of I-Node.

Data channel management: build different data channels for data services with different targets;

Bearer management: establish, maintain and release bearers;

Security management: Responsible for user authentication, security mechanism for communication between UEs, and security of signaling and user data;

Charging management: Carry out traffic-based billing according to PCRF rules.

Specifically, the I-Node can support the direct transmission of data, and is responsible for assigning the user's IP packets to different data transmission channels and different QoS bearers. The information is reported to the inter-terminal communication control device.

FIG. 5 is a schematic structural diagram of a user equipment provided by an embodiment of the present invention. As shown in FIG. 5 , the user equipment 51 provided in this embodiment can specifically implement each step of the method for inter-terminal communication applied to the UE in the mobile communication network system provided by any embodiment of the present invention, which will not be repeated here. The user equipment 51 provided in this embodiment specifically includes a service initiation module 21 and a communication module 22 . The service initiation module 21 is configured to initiate a service with the second UE, and send service attributes. The communication module 22 is configured to receive indication information corresponding to the service attribute, and communicate with the second UE according to the indication information.

The user equipment 51 provided in this embodiment initiates a service with the second UE through the service initiation module 21, and sends the service attribute to the inter-terminal communication control device 52, so that the inter-terminal communication control device 52 determines the first UE corresponding to the service. Location information, location information of the second UE, and communication capability information between the first UE and the second UE, location information of the first UE, location information of the second UE, and communication between the first UE and the second UE The capability information is used to judge, generate indication information for indicating the communication mode between the first UE and the second UE, and send it to the user equipment 51 . The communication module 22 communicates with the second UE according to the indication information. The communication mode between the user equipment 51 and the second UE can be selected according to the location of the first UE, the location of the second UE, and the communication capabilities between the two, so as to avoid problems caused by forwarding service data only through the core network. The problem of increased core network load improves the flexibility of communication between terminals.

In this embodiment, the user equipment specifically further includes a statistical information module, and the statistical information module is configured to collect statistics on a communication process with the second UE, generate and send statistical information.

In this embodiment, the communication module can also be used to send the service data to the second UE if it is determined that the indication information is direct data transmission between UEs; if it is determined that the indication information is the same I-Node data forwarding transmission mode , then send the service data to the second UE via the I-Node accessed by the first UE; The Node and the I-Node accessed by the second UE send it to the second UE; if the first UE judges that the indication information is the core network data forwarding transmission mode, the service data will be transmitted via the I-Node accessed by the first UE, the core network and the I-Node accessed by the second UE and sent to the second UE.

Specifically, the user equipment can support direct transmission of data, and is responsible for assigning IP packets to different data transmission channels and different QoS bearers, supports packet filtering, collects statistics on data packets transmitted through direct transmission, collects billing information, and reports the information to I -Node.

An embodiment of the present invention provides a base station, including the inter-terminal communication control device provided in any embodiment of the present invention.

An embodiment of the present invention provides a network system, including a core network provided with a home location server and a policy control function entity, and further including: the base station provided by any embodiment of the present invention and the user equipment provided by any embodiment of the present invention. Specifically, there are multiple base stations and user equipments, and multiple user equipments can be connected to one base station, and the user equipments are connected to the core network through the base station.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (11)

1. A communication method between terminals, characterized in that, comprising: According to the service attribute sent by the first user equipment UE, determine the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE corresponding to the service, wherein , the service attribute is an attribute of the service; Determine the communication between the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE A communication mode, generating indication information used to indicate a communication mode between the first UE and the second UE; sending the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information; Wherein, the determining of the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE Communication methods between two UEs, including: If it is determined that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is the first UE Supporting direct data transmission between a UE and the second UE, determining that the communication mode between the first UE and the second UE is a direct data transmission mode between UEs; If it is determined that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is the first UE If direct data transmission is not supported between a UE and the second UE, it is determined that the communication mode between the first UE and the second UE is the same I-Node data forwarding transmission mode; If it is determined that the I-Node accessed by the second UE is different from the I-Node accessed by the first UE, determine that the I-Node accessed by the first UE is different from the I-Node accessed by the second UE Communication capability information between I-Nodes, if it is determined that the communication capability information between the I-Node accessed by the first UE and the I-Node accessed by the second UE is the first UE access The I-Node accessed by the second UE supports direct data transmission between the I-Node accessed by the second UE, then it is determined that the communication mode between the first UE and the second UE is a direct data transmission mode between different I-Nodes ; Otherwise, determine that the communication mode between the first UE and the second UE is a core network data forwarding transmission mode. 2. The inter-terminal communication method according to claim 1, wherein, after sending the indication information to the first UE, further comprising: receiving the statistical information sent by the first UE, and performing charging processing on the statistical information according to the charging rule obtained from the policy control function entity PGRF. 3. The inter-terminal communication method according to claim 1 or 2, wherein the first UE communicates with the second UE according to the indication information, comprising: If the indication information is a direct data transmission mode between the UEs, the first UE sends service data to the second UE; If the indication information is the same I-Node data forwarding transmission mode, the first UE sends service data to the second UE via the I-Node accessed by the first UE; If the indication information is the direct data transmission mode between the different I-Nodes, the first UE transmits the service data via the I-Node accessed by the first UE and the I-Node accessed by the second UE. Node sends to the second UE; If the indication information is the data forwarding transmission mode of the core network, the first UE transmits the service data via the I-Node accessed by the first UE, the core network, and the I-Node accessed by the second UE. The Node sends it to the second UE. 4. A communication method between terminals, characterized in that, comprising: The first UE initiates a service with the second UE, and sends the service attribute; The first UE receives indication information corresponding to the service attribute, and communicates with the second UE according to the indication information; Wherein, the communication between the first UE and the second UE according to the indication information includes: If the first UE determines that the indication information is the direct data transmission mode between UEs, then send the service data to the second UE; If the first UE determines that the indication information is the same I-Node data forwarding transmission mode, then send the service data to the second UE via the I-Node accessed by the first UE; If the first UE determines that the indication information is a direct data transmission mode between different I-Nodes, the service data will be transmitted via the I-Node accessed by the first UE and the I-Node accessed by the second UE. Node sends to the second UE; If the first UE determines that the indication information is a core network data forwarding transmission mode, the service data will be transferred via the I-Node accessed by the first UE, the core network, and the I-Node accessed by the second UE. The Node sends it to the second UE. 5. The inter-terminal communication method according to claim 4, wherein the first UE receives the indication information corresponding to the service attribute, and after communicating with the second UE according to the indication information, further comprising: : The first UE collects statistics on the communication process with the second UE, generates and sends statistical information. 6. An inter-terminal communication control device, characterized in that it comprises: The location capability information determination module is configured to determine the location information of the first UE, the location information of the second UE, and the location information of the first UE and the second UE corresponding to the service according to the service attribute sent by the first user equipment UE. Communication capability information between them, wherein the service attribute is the attribute of the service; A communication mode determining module, configured to determine the first UE and the second UE according to the location information of the first UE, the location information of the second UE, and the communication capability information between the first UE and the second UE. The communication mode between the second UE, generating indication information used to indicate the communication mode between the first UE and the second UE; a sending module, configured to send the indication information to the first UE, so that the first UE communicates with the second UE according to the indication information; Wherein, the communication mode determination module is also used for: If it is determined that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is the first UE Supporting direct data transmission between a UE and the second UE, determining that the communication mode between the first UE and the second UE is a direct data transmission mode between UEs; If it is determined that the I-Node accessed by the second UE is the same as the I-Node accessed by the first UE, and the communication capability information between the first UE and the second UE is the first UE If direct data transmission is not supported between a UE and the second UE, it is determined that the communication mode between the first UE and the second UE is the same I-Node data forwarding transmission mode; If it is determined that the I-Node accessed by the second UE is different from the I-Node accessed by the first UE, determine that the I-Node accessed by the first UE is different from the I-Node accessed by the second UE Communication capability information between I-Nodes, if it is determined that the communication capability information between the I-Node accessed by the first UE and the I-Node accessed by the second UE is the first UE access The I-Node accessed by the second UE supports direct data transmission between the I-Node accessed by the second UE, then it is determined that the communication mode between the first UE and the second UE is a direct data transmission mode between different I-Nodes ; Otherwise, determine that the communication mode between the first UE and the second UE is a core network data forwarding transmission mode. 7. The inter-terminal communication control device according to claim 6, further comprising: The statistical information processing module is configured to receive the statistical information sent by the first UE, and perform charging processing on the statistical information according to the charging rule obtained from the policy control function entity PGRF. 8. A user equipment, characterized in that, comprising: A service initiation module, configured to initiate a service with the second UE, and send service attributes; A communication module, configured to receive indication information corresponding to the service attribute, and communicate with the second UE according to the indication information; Wherein, the communication module is also used for: If it is determined that the indication information is the direct data transmission mode between the UEs, then send the service data to the second UE; If it is determined that the indication information is the same I-Node data forwarding transmission mode, then send the service data to the second UE via the I-Node accessed by the first UE; If it is determined that the indication information is a direct data transmission mode between different I-Nodes, the service data is sent to the I-Node accessed by the first UE and the I-Node accessed by the second UE to the second UE; If the first UE determines that the indication information is a core network data forwarding transmission mode, the service data will be transmitted via the I-Node accessed by the first UE, the core network, and the I-Node accessed by the second UE. The Node sends it to the second UE. 9. The user equipment according to claim 8, further comprising: A statistical information module, configured to collect statistics on the communication process with the second UE, generate and send statistical information. 10. A base station, comprising the device for controlling communication between terminals according to any one of claims 6-7. 11. A network system, comprising a core network provided with a home location server and a policy control functional entity, characterized in that it further comprises: the base station according to claim 10 and the user according to any one of claims 8-9 equipment.

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