Direct communication processing method, device, relay terminal and remote terminal

Abstract

The present invention provides a direct communication processing method, device, relay terminal and remote terminal, the method comprising: receiving a direct communication request message sent by a remote terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and QoS parameters of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal; sending a direct communication response message to the remote terminal, the direct communication response message is used to indicate that the establishment of the first QoS flow is complete; in the embodiment of the present invention, the remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem that the remote terminal communicates through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

Description

[0001] This application is a divisional application with application date of October 30, 2019, application number 201911045315.7, and invention name “Processing method, device, relay terminal and remote terminal for direct communication”. Technical Field

[0002] The present invention relates to the field of communication technology, and in particular to a direct communication processing method, device, relay terminal and remote terminal. Background Art

[0003] In the 4G system, the Proximity Services (ProSe) solution includes: when the terminal is out of network coverage, it cannot directly connect to the network, but can connect to the network through a terminal with relay function; the terminal outside the network coverage is called remote user equipment (Remote UE), and the terminal with relay function is called relay user equipment (RelayUE). For the remote user equipment to communicate with the network through the relay user equipment, the specific process is as follows:

[0004] 1. The relay user equipment establishes a relay PDN (Packet Data Network) connection of the Uu interface;

[0005] 2. The remote user equipment performs a discovery process to discover the relay user equipment;

[0006] 3. The remote user equipment selects the relay user equipment and establishes a direct one-to-one communication. The communication interface between the remote user equipment and the relay user equipment is the PC5 interface. If a new PDN connection is required, the relay user equipment initiates a new PDN connection establishment process;

[0007] 4. The relay user device allocates an IP address to the remote user device.

[0008] The remote user equipment communicates with the network through the PDN connection established by the relay user equipment.

[0009] In summary, the ProSe solution in the 4G system is based on the PDN connection granularity, that is, the PC5 connection between the remote user equipment and the relay user equipment and the Uu connection of the relay user equipment are both PDN connection granularity. The concept of Quality of Service (QoS) flow is introduced in the 5G system. How to manage the QoS flow of the PC5 interface and Uu interface of the relay user equipment is an unresolved issue. Summary of the invention

[0010] The purpose of the embodiments of the present invention is to provide a direct communication processing method, device, relay terminal and remote terminal to solve the problem that the related art does not specify how to manage the QoS flow of the direct communication interface and the Uu interface.

[0011] In order to solve the above problem, an embodiment of the present invention provides a direct communication processing method, which is applied to a relay terminal, including:

[0012] Receiving a direct communication request message sent by a remote terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0013] A direct communication response message is sent to the remote terminal, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0014] The direct communication request message further includes:

[0015] The service information identifier supported by the relay terminal.

[0016] Before sending the direct communication response message to the remote terminal, the method further includes:

[0017] If a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, a new PDU session corresponding to the service information identifier supported by the relay terminal is created on the Uu interface, and a third QoS flow that meets the QoS parameters of the first QoS flow is created on the newly created PDU session.

[0018] Before sending the direct communication response message to the remote terminal, the method further includes:

[0019] If a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface, determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow;

[0020] The sending a direct communication response message to the remote terminal includes:

[0021] If there is a second QoS flow that can meet the QoS parameters of the first QoS flow, sending a direct communication response message to the remote terminal;

[0022] If there is no QoS flow that can meet the QoS parameters of the first QoS flow, a fourth QoS flow that meets the QoS parameters of the first QoS flow is newly created on the Uu interface, and a direct communication response message is sent to the remote terminal.

[0023] The determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the requirements of the first QoS flow includes:

[0024] Determine whether the QoS flow on the established PDU session can meet the QoS parameters of the first QoS flow according to the mapping relationship between the QoS parameters of the QoS flow on the direct communication interface configured by the network and the QoS parameters of the QoS flow on the Uu interface;

[0025] If the QoS parameters of the QoS flow on the established Uu interface contain QoS parameters that have a mapping relationship with the QoS parameters of the first QoS flow, it is determined that there is a second QoS flow that can meet the QoS parameters of the first QoS flow; otherwise, it is determined that the second QoS flow does not exist.

[0026] Before sending the direct communication response message to the remote terminal, the method further includes:

[0027] A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the third QoS flow is stored.

[0028] Wherein, the method further comprises:

[0029] According to the mapping relationship, the downlink data received from the third QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

[0030] Before sending the direct communication response message to the remote terminal, the method further includes:

[0031] storing a mapping relationship between a flow identifier of the first QoS flow and a flow identifier of the second QoS flow;

[0032] or,

[0033] A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the fourth QoS flow is stored.

[0034] Wherein, the method further comprises:

[0035] According to the mapping relationship, the downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

[0036] Wherein, the method further comprises:

[0037] Sending a first registration request message to a network side device, where the first registration request message includes the relay terminal requesting the network side device to provide proximity service policy information;

[0038] A first feedback message sent by the network side device is received, wherein the first feedback message includes neighboring service policy information, and the neighboring service policy information includes: a mapping relationship between QoS parameters of the QoS flow on the direct communication interface and QoS parameters of the QoS flow on the Uu interface.

[0039] The first registration request message further includes relay indication information, and the relay indication information is used to indicate that the terminal sending the first registration request message is a relay terminal.

[0040] The direct communication response message includes: a service information identifier supported by the relay terminal, a QoS parameter of the first QoS flow, and a flow identifier of the first QoS flow.

[0041] An embodiment of the present invention further provides a direct communication processing method, which is applied to a remote terminal and includes:

[0042] Sending a direct communication request message to the relay terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0043] A direct communication response message sent by the relay terminal is received, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0044] The direct communication request message further includes:

[0045] The service information identifier supported by the relay terminal.

[0046] The direct communication response message includes: a service information identifier supported by the relay terminal, a QoS parameter of the first QoS flow, and a flow identifier of the first QoS flow.

[0047] Wherein, the method further comprises:

[0048] Communicate with the network through the first QoS flow and the QoS flow established by the relay terminal.

[0049] Wherein, the method further comprises:

[0050] Sending a second registration request message to the network side device, where the second registration request message includes the remote terminal requesting the network side device to provide proximity service policy information of the relay terminal;

[0051] A second feedback message sent by the network side device is received, where the second feedback message includes proximity service policy information, and the proximity service policy information includes: service information identifiers supported by the relay terminal.

[0052] The second registration request message includes remote indication information, and the remote indication information is used to indicate that the terminal sending the second registration request message is a remote terminal.

[0053] An embodiment of the present invention further provides a direct communication processing device, which is applied to a relay terminal, including:

[0054] A first receiving module, configured to receive a direct communication request message sent by a remote terminal, wherein the direct communication request message includes: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0055] The first response module is used to send a direct communication response message to the remote terminal, where the direct communication response message is used to indicate that the establishment of the first QoS flow is completed.

[0056] An embodiment of the present invention further provides a relay terminal, comprising: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to read the program in the memory and perform the following operations:

[0057] Receiving a direct communication request message sent by a remote terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0058] A direct communication response message is sent to the remote terminal, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0059] The direct communication request message further includes:

[0060] The service information identifier supported by the relay terminal.

[0061] The processor is used to read the program in the memory and perform the following operations:

[0062] If a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, a new PDU session corresponding to the service information identifier supported by the relay terminal is created on the Uu interface, and a third QoS flow that meets the QoS parameters of the first QoS flow is created on the newly created PDU session.

[0063] The processor is used to read the program in the memory and perform the following operations:

[0064] If a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface, determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow;

[0065] If there is a second QoS flow that can meet the QoS parameters of the first QoS flow, sending a direct communication response message to the remote terminal;

[0066] If there is no QoS flow that can meet the QoS parameters of the first QoS flow, a fourth QoS flow that meets the QoS parameters of the first QoS flow is newly created on the Uu interface, and a direct communication response message is sent to the remote terminal.

[0067] An embodiment of the present invention further provides a direct communication processing device, which is applied to a remote terminal, including:

[0068] A request sending module, configured to send a direct communication request message to a relay terminal, wherein the direct communication request message includes: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0069] The response receiving module is used to receive a direct communication response message sent by the relay terminal, where the direct communication response message is used to indicate that the establishment of the first QoS flow is completed.

[0070] The embodiment of the present invention further provides a remote terminal, comprising: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to read the program in the memory and perform the following operations:

[0071] Sending a direct communication request message to the relay terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0072] A direct communication response message sent by the relay terminal is received, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0073] The direct communication request message further includes:

[0074] The service information identifier supported by the relay terminal.

[0075] The processor is used to read the program in the memory and perform the following operations:

[0076] Communicate with the network through the first QoS flow and the QoS flow established by the relay terminal.

[0077] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the direct communication processing method as described above are implemented.

[0078] The above technical solution of the present invention has at least the following beneficial effects:

[0079] In the direct communication processing method, device, relay terminal and remote terminal of the embodiment of the present invention, a first QoS flow is established on the direct communication interface between the relay terminal and the remote terminal, and the remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 A flowchart showing a processing method for direct communication applied to a relay terminal provided by an embodiment of the present invention;

[0081] Figure 2 A schematic diagram showing the principle of configuring parameters for a relay terminal by a network in a direct communication processing method provided by an embodiment of the present invention;

[0082] Figure 3 A schematic diagram showing the principle of a relay terminal creating or modifying a PDU session in a direct communication processing method provided in an embodiment of the present invention;

[0083] Figure 4 A flowchart showing the steps of a processing method for direct communication applied to a remote terminal provided by an embodiment of the present invention;

[0084] Figure 5 A schematic diagram showing the structure of a processing device for direct communication of a relay terminal provided in an embodiment of the present invention;

[0085] Figure 6 A schematic diagram showing the structure of a relay terminal provided by an embodiment of the present invention;

[0086] Figure 7 A schematic diagram showing the structure of a processing device for direct communication with a remote terminal provided in an embodiment of the present invention;

[0087] Figure 8 A schematic diagram showing the structure of a remote terminal provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0088] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0089] like Figure 1 As shown, an embodiment of the present invention further provides a direct communication processing method, which is applied to a relay terminal, including:

[0090] Step 11, receiving a direct communication request message sent by a remote terminal, wherein the direct communication request message includes: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0091] Step 12: Send a direct communication response message to the remote terminal, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0092] In the embodiment of the present invention, the remote terminal and the relay terminal establish direct communication and the first QoS flow through a direct communication request message and a direct communication response message. Optionally, the direct communication interface is a PC5 interface, and the first QoS flow can be called a PC5 QoS flow.

[0093] Optionally, the direct communication request message further includes:

[0094] The service information identifier supported by the relay terminal (ie, Relay Service Code); specifically, the service information identifier carried in the direct communication request message that the remote terminal is interested in and that the relay terminal supports.

[0095] Optionally, the direct communication response message includes: a service information identifier supported by the relay terminal, QoS parameters of the first QoS flow, and a flow identifier of the first QoS flow.

[0096] As an optional embodiment, before step 12, the method further includes:

[0097] If a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, a new PDU session corresponding to the service information identifier supported by the relay terminal is created on the Uu interface, and a third QoS flow that meets the QoS parameters of the first QoS flow is created on the newly created PDU session.

[0098] As another optional embodiment, before step 12, the method further includes:

[0099] If a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface, determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow;

[0100] Then step 12 includes:

[0101] If there is a second QoS flow that can meet the QoS parameters of the first QoS flow, sending a direct communication response message to the remote terminal;

[0102] If there is no QoS flow that can meet the QoS parameters of the first QoS flow, a fourth QoS flow that meets the QoS parameters of the first QoS flow is newly created on the Uu interface, and a direct communication response message is sent to the remote terminal.

[0103] Accordingly, before step 12, the method further includes:

[0104] A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the third QoS flow is stored.

[0105] Furthermore, the method further comprises:

[0106] According to the mapping relationship, the downlink data received from the third QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

[0107] Further, the determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the requirements of the first QoS flow includes:

[0108] Determine whether the QoS flow on the established PDU session can meet the QoS parameters of the first QoS flow according to the mapping relationship between the QoS parameters of the QoS flow on the direct communication interface configured by the network and the QoS parameters of the QoS flow on the Uu interface;

[0109] If the QoS parameters of the QoS flow on the established Uu interface contain QoS parameters that have a mapping relationship with the QoS parameters of the first QoS flow, it is determined that there is a second QoS flow that can meet the QoS parameters of the first QoS flow; otherwise, it is determined that the second QoS flow does not exist.

[0110] Accordingly, before step 12, the method further includes:

[0111] storing a mapping relationship between a flow identifier of the first QoS flow and a flow identifier of the second QoS flow;

[0112] or,

[0113] A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the fourth QoS flow is stored.

[0114] Accordingly, the method further includes:

[0115] According to the mapping relationship, the downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

[0116] For example, Figure 2 As shown, the process of creating or modifying a PDU session or a QoS flow by a relay terminal is as follows:

[0117] 1. The relay terminal establishes a PDU (Protocol Data Unit) session and QoS flow on the Uu interface.

[0118] 2. Establish a PC5 communication connection between the remote terminal and the relay terminal.

[0119] 3. If the relay terminal has not currently established a PDU session corresponding to the Relay Service Code requested by the remote terminal, the relay terminal initiates the establishment of a PDU session; if the relay terminal has currently established a PDU session corresponding to the RelayService Code requested by the remote terminal, but the current Uu QoS flow of the relay terminal cannot meet the PC5 QoS flow requirements of the remote terminal, the relay terminal initiates the PDU session modification process and creates a new Uu QoS flow.

[0120] 4. The remote terminal communicates through the PDU session and QoS flow of the relay terminal. For uplink data, the relay terminal sends the data received from the PC5 QoS flow to the Uu QoS flow; for downlink data, the relay terminal sends the data received from the Uu QoS flow to the PC5 QoS flow through a mapping relationship (i.e., the mapping relationship between the PC5 QoS flow identifier and the Uu QoS flow identifier).

[0121] As another optional embodiment, before step 11, the method further includes:

[0122] Sending a first registration request message to a network side device, where the first registration request message includes the relay terminal requesting the network side device to provide proximity service policy information;

[0123] A first feedback message sent by the network side device is received, wherein the first feedback message includes neighboring service policy information, and the neighboring service policy information includes: a mapping relationship between QoS parameters of the QoS flow on the direct communication interface and QoS parameters of the QoS flow on the Uu interface.

[0124] The first registration request message further includes relay indication information, and the relay indication information is used to indicate that the terminal sending the second registration request message is a relay terminal.

[0125] Before the remote terminal and the relay terminal establish direct communication (ie, the first QoS flow), the network needs to configure parameters for the relay terminal.

[0126] For example, Figure 3 As shown below, the network configures parameters for the relay terminal:

[0127] 1. The relay terminal sends a first registration request message to the AMF (Authentication Management Function Entity), which includes the terminal proximity service policy information and is used to indicate to the PCF that it requests to provide proximity service ProSe policy information. The terminal indicates to the PCF that it is a relay terminal.

[0128] 2.AMF returns a registration response message to the terminal after completing the registration process.

[0129] 3.AMF sends a terminal measurement control creation request message to PCF, and forwards the ProSe policy request indication information and relay terminal indication information to PCF.

[0130] 4. PCF returns a terminal measurement control creation response message to AMF.

[0131] 5. PCF sends a transmission message to AMF, which contains a UE Policy Container, which is used to provide ProSe policy information to the relay terminal, including the correspondence between Uu QoS parameters and PC5 QoS parameters. The Uu QoS parameters are the QoS parameters corresponding to the QoS flow established by the relay terminal on the Uu interface, and the PC5 QoS parameters are the QoS parameters corresponding to the QoS flow established by the relay terminal on the PC5 interface.

[0132] 6.AMF forwards the ProSe policy information to the relay terminal via NAS (Non Access Stratum) message.

[0133] 7. The relay terminal returns the terminal policy delivery result to AMF.

[0134] 8.AMF returns the terminal policy delivery result message to PCF.

[0135] In summary, the embodiment of the present invention establishes a first QoS flow on the direct communication interface between the relay terminal and the remote terminal. The remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

[0136] like Figure 4 As shown, an embodiment of the present invention further provides a direct communication processing method, which is applied to a remote terminal, including:

[0137] Step 41, sending a direct communication request message to the relay terminal, the direct communication request message including: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on the direct communication interface between the remote terminal and the relay terminal;

[0138] Step 42: Receive a direct communication response message sent by the relay terminal, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0139] In the embodiment of the present invention, the remote terminal and the relay terminal establish direct communication and the first QoS flow through a direct communication request message and a direct communication response message. Optionally, the direct communication interface is a PC5 interface, and the first QoS flow can be called a PC5 QoS flow.

[0140] Optionally, the direct communication request message further includes:

[0141] The service information identifier supported by the relay terminal. (ie, Relay Service Code); specifically, the service information identifier that the remote terminal is interested in and supported by the relay terminal and is carried in the direct communication request message.

[0142] Optionally, the direct communication response message includes: a service information identifier supported by the relay terminal, QoS parameters of the first QoS flow, and a flow identifier of the first QoS flow.

[0143] As an optional embodiment, the method further includes:

[0144] Communicate with the network through the first QoS flow and the QoS flow established by the relay terminal.

[0145] For example, for uplink data, the relay terminal sends the data received from the PC5 QoS flow to the Uu QoS flow; for downlink data, the relay terminal sends the data received from the Uu QoS flow to the PC5 QoS flow through a mapping relationship (i.e., the mapping relationship between the PC5 QoS flow identifier and the Uu QoS flow identifier).

[0146] As another optional embodiment, before step 41, the method further includes:

[0147] Sending a second registration request message to the network side device, where the second registration request message includes the remote terminal requesting the network side device to provide proximity service policy information of the relay terminal;

[0148] A second feedback message sent by the network side device is received, where the second feedback message includes proximity service policy information, and the proximity service policy information includes: service information identifiers supported by the relay terminal.

[0149] The second registration request message includes remote indication information, and the remote indication information is used to indicate that the terminal sending the second registration request message is a remote terminal.

[0150] Before the remote terminal and the relay terminal establish direct communication (ie, the first QoS flow), the network needs to configure parameters for the remote terminal so that the remote terminal learns the service information identifier supported by the relay terminal and obtains that the terminal is a remote terminal.

[0151] In summary, the embodiment of the present invention establishes a first QoS flow on the direct communication interface between the relay terminal and the remote terminal. The remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

[0152] like Figure 5 As shown, an embodiment of the present invention further provides a direct communication processing device, which is applied to a relay terminal, including:

[0153] The first receiving module 51 is used to receive a direct communication request message sent by a remote terminal, wherein the direct communication request message includes: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0154] The first response module 52 is used to send a direct communication response message to the remote terminal, where the direct communication response message is used to indicate that the establishment of the first QoS flow is completed.

[0155] Optionally, in the above embodiment of the present invention, the direct communication request message further includes:

[0156] The service information identifier supported by the relay terminal.

[0157] Optionally, in the above embodiment of the present invention, the device further includes:

[0158] The first establishment module is used to establish a new PDU session corresponding to the service information identifier supported by the relay terminal on the Uu interface if a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, and to establish a third QoS flow that meets the QoS parameters of the first QoS flow on the newly established PDU session.

[0159] Optionally, in the above embodiment of the present invention, the device further includes:

[0160] A judgment module, configured to judge whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow if a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface;

[0161] The first response module comprises:

[0162] A first submodule, configured to send a direct communication response message to the remote terminal if there is a second QoS flow that can meet the QoS parameters of the first QoS flow;

[0163] The second submodule is used to create a fourth QoS flow that meets the QoS parameters of the first QoS flow on the Uu interface if there is no QoS flow that can meet the QoS parameters of the first QoS flow, and send a direct communication response message to the remote terminal.

[0164] Optionally, in the above embodiment of the present invention, the judgment module includes:

[0165] The third submodule is used to determine whether the QoS flow on the established PDU session can meet the QoS parameters of the first QoS flow according to the mapping relationship between the QoS parameters of the QoS flow on the direct communication interface configured by the network and the QoS parameters of the QoS flow on the Uu interface;

[0166] The fourth submodule is used to determine whether there is a second QoS flow that can meet the QoS parameters of the first QoS flow if there are QoS parameters in the QoS parameters of the QoS flow on the established Uu interface that have a mapping relationship with the QoS parameters of the first QoS flow; otherwise, determine that the second QoS flow does not exist.

[0167] Optionally, in the above embodiment of the present invention, the device further includes:

[0168] The first storage module is used to store a mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the third QoS flow.

[0169] Optionally, in the above embodiment of the present invention, the device further includes:

[0170] The first transmission module is used to send the downlink data received from the third QoS flow on the Uu interface to the remote terminal through the first QoS flow on the direct communication interface according to the mapping relationship.

[0171] Optionally, in the above embodiment of the present invention, the device further includes:

[0172] A second storage module, used to store a mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the second QoS flow;

[0173] Or, it is used to store a mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the fourth QoS flow.

[0174] Optionally, in the above embodiment of the present invention, the device further includes:

[0175] The second transmission module is used to send the downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface to the remote terminal through the first QoS flow on the direct communication interface according to the mapping relationship.

[0176] Optionally, in the above embodiment of the present invention, the device further includes:

[0177] A first request module, configured to send a first registration request message to a network side device, wherein the first registration request message includes the relay terminal requesting the network side device to provide proximity service policy information;

[0178] The first feedback module is used to receive a first feedback message sent by the network side device, wherein the first feedback message contains adjacent service policy information, and the adjacent service policy information includes: a mapping relationship between the QoS parameters of the QoS flow on the direct communication interface and the QoS parameters of the QoS flow on the Uu interface.

[0179] Optionally, in the above embodiment of the present invention, the first registration request message further includes relay indication information, and the relay indication information is used to indicate that the terminal sending the first registration request message is a relay terminal.

[0180] Optionally, in the above embodiment of the present invention, the direct communication response message includes: a service information identifier supported by the relay terminal, QoS parameters of the first QoS flow, and a flow identifier of the first QoS flow.

[0181] The embodiment of the present invention also provides a direct communication processing device. Since the principle of solving the problem by the device is similar to the direct communication processing method in the embodiment of the present invention, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0182] In summary, the embodiment of the present invention establishes a first QoS flow on the direct communication interface between the relay terminal and the remote terminal. The remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

[0183] It should be noted that the direct communication processing device provided in the embodiment of the present invention is a device capable of executing the above-mentioned direct communication processing method. All embodiments of the above-mentioned direct communication processing method are applicable to the device and can achieve the same or similar beneficial effects.

[0184] like Figure 6 As shown, an embodiment of the present invention further provides a relay terminal, including: a transceiver 620, a memory 610, a processor 600, and a computer program stored in the memory 610 and executable on the processor 600, wherein the transceiver 620 receives and sends data under the control of the processor 600, and the processor 600 is configured to read the program in the memory and perform the following operations:

[0185] Receiving a direct communication request message sent by a remote terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0186] A direct communication response message is sent to the remote terminal, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0187] Optionally, in the above embodiment of the present invention, the direct communication request message further includes:

[0188] The service information identifier supported by the relay terminal.

[0189] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0190] If a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, a new PDU session corresponding to the service information identifier supported by the relay terminal is created on the Uu interface, and a third QoS flow that meets the QoS parameters of the first QoS flow is created on the newly created PDU session.

[0191] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0192] If a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface, determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow;

[0193] If there is a second QoS flow that can meet the QoS parameters of the first QoS flow, sending a direct communication response message to the remote terminal;

[0194] If there is no QoS flow that can meet the QoS parameters of the first QoS flow, a fourth QoS flow that meets the QoS parameters of the first QoS flow is newly created on the Uu interface, and a direct communication response message is sent to the remote terminal.

[0195] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0196] Determine whether the QoS flow on the established PDU session can meet the QoS parameters of the first QoS flow according to the mapping relationship between the QoS parameters of the QoS flow on the direct communication interface configured by the network and the QoS parameters of the QoS flow on the Uu interface;

[0197] If the QoS parameters of the QoS flow on the established Uu interface contain QoS parameters that have a mapping relationship with the QoS parameters of the first QoS flow, it is determined that there is a second QoS flow that can meet the QoS parameters of the first QoS flow; otherwise, it is determined that the second QoS flow does not exist.

[0198] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0199] A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the third QoS flow is stored.

[0200] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0201] According to the mapping relationship, the downlink data received from the third QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

[0202] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0203] storing a mapping relationship between a flow identifier of the first QoS flow and a flow identifier of the second QoS flow;

[0204] or,

[0205] A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the fourth QoS flow is stored.

[0206] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0207] According to the mapping relationship, the downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

[0208] Optionally, in the above embodiment of the present invention, the processor 600 is used to read the program in the memory and perform the following operations:

[0209] Sending a first registration request message to a network side device, where the first registration request message includes the relay terminal requesting the network side device to provide proximity service policy information;

[0210] A first feedback message sent by the network side device is received, wherein the first feedback message includes neighboring service policy information, and the neighboring service policy information includes: a mapping relationship between QoS parameters of the QoS flow on the direct communication interface and QoS parameters of the QoS flow on the Uu interface.

[0211] Optionally, in the above embodiment of the present invention, the first registration request message further includes relay indication information, and the relay indication information is used to indicate that the terminal sending the first registration request message is a relay terminal.

[0212] Optionally, in the above embodiment of the present invention, the direct communication response message includes: a service information identifier supported by the relay terminal, QoS parameters of the first QoS flow, and a flow identifier of the first QoS flow.

[0213] A relay terminal is also provided in the embodiment of the present invention. Since the principle of solving the problem by the relay terminal is similar to the processing method of direct communication in the embodiment of the present invention, the implementation of the relay terminal can refer to the implementation of the method, and the repeated parts will not be repeated.

[0214] In summary, the embodiment of the present invention establishes a first QoS flow on the direct communication interface between the relay terminal and the remote terminal. The remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

[0215] It should be noted that the relay terminal provided in the embodiment of the present invention is a relay terminal capable of executing the above-mentioned direct communication processing method. All embodiments of the above-mentioned direct communication processing method are applicable to the relay terminal and can achieve the same or similar beneficial effects.

[0216] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the processing method embodiment for direct communication applied to a relay terminal as described above is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0217] like Figure 7 As shown, an embodiment of the present invention further provides a direct communication processing device, which is applied to a remote terminal, including:

[0218] A request sending module 71 is used to send a direct communication request message to the relay terminal, wherein the direct communication request message includes: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on the direct communication interface between the remote terminal and the relay terminal;

[0219] The response receiving module 72 is used to receive a direct communication response message sent by the relay terminal, where the direct communication response message is used to indicate that the establishment of the first QoS flow is completed.

[0220] Optionally, in the above embodiment of the present invention, the direct communication request message further includes:

[0221] The service information identifier supported by the relay terminal.

[0222] Optionally, in the above embodiment of the present invention, the direct communication response message includes: a service information identifier supported by the relay terminal, QoS parameters of the first QoS flow, and a flow identifier of the first QoS flow.

[0223] Optionally, in the above embodiment of the present invention, the device further includes:

[0224] A communication module is used to communicate with the network through the first QoS flow and the QoS flow established by the relay terminal.

[0225] Optionally, in the above embodiment of the present invention, the device further includes:

[0226] A second request module, configured to send a second registration request message to the network side device, wherein the second registration request message includes the proximity service policy information of the relay terminal requested by the remote terminal to the network side device;

[0227] The second feedback module is used to receive a second feedback message sent by the network side device, wherein the second feedback message includes proximity service policy information, and the proximity service policy information includes: service information identifiers supported by the relay terminal.

[0228] Optionally, in the above embodiment of the present invention, the second registration request message includes remote indication information, and the remote indication information is used to indicate that the terminal sending the second registration request message is a remote terminal.

[0229] The embodiment of the present invention also provides a direct communication processing device. Since the principle of solving the problem by the device is similar to the direct communication processing method in the embodiment of the present invention, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0230] In summary, the embodiment of the present invention establishes a first QoS flow on the direct communication interface between the relay terminal and the remote terminal. The remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

[0231] It should be noted that the direct communication processing device provided in the embodiment of the present invention is a device capable of executing the above-mentioned direct communication processing method. All embodiments of the above-mentioned direct communication processing method are applicable to the device and can achieve the same or similar beneficial effects.

[0232] like Figure 8 As shown, an embodiment of the present invention further provides a remote terminal, including: a transceiver 820, a memory 810, a processor 800, and a computer program stored in the memory 810 and executable on the processor 800, wherein the transceiver 820 receives and sends data under the control of the processor 800, and the processor 800 is used to read the program in the memory and perform the following operations:

[0233] Sending a direct communication request message to the relay terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal;

[0234] A direct communication response message sent by the relay terminal is received, where the direct communication response message is used to indicate that establishment of the first QoS flow is complete.

[0235] Optionally, in the above embodiment of the present invention, the direct communication request message further includes:

[0236] The service information identifier supported by the relay terminal.

[0237] Optionally, in the above embodiment of the present invention, the processor 800 is used to read the program in the memory and perform the following operations:

[0238] Communicate with the network through the first QoS flow and the QoS flow established by the relay terminal.

[0239] Optionally, in the above embodiment of the present invention, the direct communication response message includes: a service information identifier supported by the relay terminal, QoS parameters of the first QoS flow, and a flow identifier of the first QoS flow.

[0240] Optionally, in the above embodiment of the present invention, the processor 800 is used to read the program in the memory and perform the following operations:

[0241] Sending a second registration request message to the network side device, where the second registration request message includes the remote terminal requesting the network side device to provide proximity service policy information of the relay terminal;

[0242] A second feedback message sent by the network side device is received, where the second feedback message includes proximity service policy information, and the proximity service policy information includes: service information identifiers supported by the relay terminal.

[0243] Optionally, in the above embodiment of the present invention, the second registration request message includes remote indication information, and the remote indication information is used to indicate that the terminal sending the second registration request message is a remote terminal.

[0244] A remote terminal is also provided in the embodiment of the present invention. Since the principle of solving the problem by the remote terminal is similar to the processing method of direct communication in the embodiment of the present invention, the implementation of the remote terminal can refer to the implementation of the method, and the repeated parts will not be repeated.

[0245] In summary, the embodiment of the present invention establishes a first QoS flow on the direct communication interface between the relay terminal and the remote terminal. The remote terminal communicates with the network through the first QoS flow and the QoS flow on the Uu interface of the relay terminal, thereby realizing the management of the QoS flow between the relay terminal and the remote terminal; and solves the problem of the remote terminal communicating through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

[0246] It should be noted that the remote terminal provided in the embodiment of the present invention is a remote terminal capable of executing the above-mentioned direct communication processing method. All embodiments of the above-mentioned direct communication processing method are applicable to the remote terminal and can achieve the same or similar beneficial effects.

[0247] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0248] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0249] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

[0250] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A direct communication processing method, applied to a relay terminal, characterized in that: include: Receiving a direct communication request message sent by a remote terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal; If a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, a new PDU session corresponding to the service information identifier supported by the relay terminal is created on the Uu interface, and a third QoS flow that meets the QoS parameters of the first QoS flow is created on the new PDU session; and a direct communication response message is sent to the remote terminal; If a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface, determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow; If there is a second QoS flow that can meet the QoS parameters of the first QoS flow, sending a direct communication response message to the remote terminal; If there is no QoS flow that can meet the QoS parameters of the first QoS flow, create a fourth QoS flow that meets the QoS parameters of the first QoS flow on the Uu interface, and send a direct communication response message to the remote terminal; The direct communication response message is used to indicate that establishment of the first QoS flow is completed.

2. The method according to claim 1, characterized in that: The direct communication request message further includes: The service information identifier supported by the relay terminal.

3. The method according to claim 1, characterized in that The determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the requirement of the first QoS flow includes: Determine whether the QoS flow on the established PDU session can meet the QoS parameters of the first QoS flow according to the mapping relationship between the QoS parameters of the QoS flow on the direct communication interface configured by the network and the QoS parameters of the QoS flow on the Uu interface; If the QoS parameters of the QoS flow on the established Uu interface contain QoS parameters that have a mapping relationship with the QoS parameters of the first QoS flow, it is determined that there is a second QoS flow that can meet the QoS parameters of the first QoS flow; otherwise, it is determined that the second QoS flow does not exist.

4. The method according to claim 1, characterized in that Before sending the direct communication response message to the remote terminal, the method further includes: A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the third QoS flow is stored.

5. The method according to claim 4, characterized in that The method further comprises: According to the mapping relationship, the downlink data received from the third QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

6. The method according to claim 1, characterized in that Before sending the direct communication response message to the remote terminal, the method further includes: storing a mapping relationship between a flow identifier of the first QoS flow and a flow identifier of the second QoS flow; or, A mapping relationship between the flow identifier of the first QoS flow and the flow identifier of the fourth QoS flow is stored.

7. The method according to claim 6, characterized in that The method further comprises: According to the mapping relationship, the downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface is sent to the remote terminal through the first QoS flow on the direct communication interface.

8. The method according to claim 1, characterized in that The method further comprises: Sending a first registration request message to a network side device, where the first registration request message includes the relay terminal requesting the network side device to provide proximity service policy information; A first feedback message sent by the network side device is received, wherein the first feedback message includes neighboring service policy information, and the neighboring service policy information includes: a mapping relationship between QoS parameters of the QoS flow on the direct communication interface and QoS parameters of the QoS flow on the Uu interface.

9. The method according to claim 8, characterized in that The first registration request message further includes relay indication information, where the relay indication information is used to indicate that the terminal sending the first registration request message is a relay terminal.

10. The method according to claim 2, characterized in that The direct communication response message includes: a service information identifier supported by the relay terminal, a QoS parameter of the first QoS flow, and a flow identifier of the first QoS flow.

11. A direct communication processing device, applied to a relay terminal, characterized in that: include: A first receiving module, configured to receive a direct communication request message sent by a remote terminal, wherein the direct communication request message includes: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal; The device also includes: A first establishing module, configured to, if a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, create a new PDU session corresponding to the service information identifier supported by the relay terminal on the Uu interface, and create a third QoS flow that satisfies the QoS parameters of the first QoS flow on the newly created PDU session; A first response module, configured to send a direct communication response message to the remote terminal; The device also includes: A judgment module, configured to judge whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow if a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface; A first sending module, configured to send a direct communication response message to the remote terminal if there is a second QoS flow that can meet the QoS parameters of the first QoS flow; A second sending module, configured to create a fourth QoS flow that meets the QoS parameters of the first QoS flow on the Uu interface if there is no QoS flow that can meet the QoS parameters of the first QoS flow, and send a direct communication response message to the remote terminal; The direct communication response message is used to indicate that establishment of the first QoS flow is completed.

12. A relay terminal, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; wherein the transceiver receives and sends data under the control of the processor, and the processor is used to read the program in the memory and perform the following operations: Receiving a direct communication request message sent by a remote terminal, the direct communication request message comprising: a flow identifier of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; wherein the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal; The processor is used to read the program in the memory and perform the following operations: If a PDU session corresponding to the service information identifier supported by the relay terminal is not established on the Uu interface, a new PDU session corresponding to the service information identifier supported by the relay terminal is created on the Uu interface, and a third QoS flow that meets the QoS parameters of the first QoS flow is created on the new PDU session; a direct communication response message is sent to the remote terminal, The processor is used to read the program in the memory and perform the following operations: If a PDU session corresponding to the service information identifier supported by the relay terminal has been established on the Uu interface, determining whether the QoS flow on the established PDU session corresponding to the service information identifier supported by the relay terminal can meet the QoS parameters of the first QoS flow; If there is a second QoS flow that can meet the QoS parameters of the first QoS flow, sending a direct communication response message to the remote terminal; If there is no QoS flow that can meet the QoS parameters of the first QoS flow, create a fourth QoS flow that meets the QoS parameters of the first QoS flow on the Uu interface, and send a direct communication response message to the remote terminal; The direct communication response message is used to indicate that establishment of the first QoS flow is completed.

13. The relay terminal according to claim 12, characterized in that: The direct communication request message further includes: The service information identifier supported by the relay terminal.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the direct communication processing method according to any one of claims 1 to 10 are implemented.

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