Patent Description:
In the <NUM> system, the Proximity Services (ProSe) scheme includes: when the terminal is out of the network coverage range, the terminal cannot be directly connected with the network and can be connected with the network through the terminal with the relay function; a terminal out of the network coverage is called a Remote user equipment (Remote UE), and a terminal with a Relay function is called a Relay UE (Relay UE). For the communication between the remote user equipment and the network through the relay user equipment, the specific process is as follows:.

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

In summary, the ProSe scheme in the <NUM> system is based on PDN connection granularity, that is, the PC5 connection between the remote UE and the relay UE and the Uu connection of the relay UE are both PDN connection granularity. The concept of Quality of Service (QoS) flow is introduced into the <NUM> system, and how to manage QoS flows of the PC5 interface and the Uu interface of the relay user equipment is a problem that is not solved at present. <CIT> discloses quality of service (QoS) request and information distribution for wireless relay networks. <NPL>) discloses layer-<NUM> link modification for a unicast link.

An object of the embodiments of the present disclosure is to provide processing methods of direct communication, a processing device of direct communication and a system as defined in the appended set of claims, so as to solve a problem that how to manage QoS flows of a direct communication interface and a Uu interface is not specified in the related art.

The technical scheme of the present disclosure at least has the following beneficial effects:
a first QoS flow on a direct communication interface between the relay terminal and the remote terminal is established, and the remote terminal communicates with a network through the first QoS flow and a QoS flow on a Uu interface of the relay terminal, so that the QoS flow between the relay terminal and the remote terminal is managed, so that the remote terminal can communicate through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

To make the technical problems, technical solutions and advantages to be solved by the present disclosure clearer, the following detailed description is made with reference to the accompanying drawings and specific embodiments. The embodiments of <FIG>, <FIG>, <FIG> and <FIG> fall under the scope of the appended claims. The other embodiments do not fall under the scope of the claims and are to be regarded as mere examples useful to better understand the invention.

As shown in <FIG>, an embodiment of the present disclosure further provides a processing method of direct communication, which is applied to a relay terminal, and includes:.

In the embodiment of the disclosure, direct communication and a first QoS flow are established between a remote terminal and a relay terminal 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 may be referred to as a PC5 QoS flow.

The direct communication request message further includes:
a service information identification (i.e., Relay Service Code) supported by the relay terminal; specifically, the service information identification which is of interest to the remote terminal and is supported by the relay terminal is carried in the direct communication request message.

Optionally, the direct communication response message includes: the service information identification supported by the relay terminal, the QoS parameter of the first QoS flow and the flow identification of the first QoS flow.

Before step <NUM>, the method further includes:
in a case that a PDU session corresponding to the service information identification supported by the relay terminal is not established on a Uu interface, establishing the PDU session corresponding to the service information identification supported by the relay terminal on the Uu interface, and establishing a third QoS flow meeting the QoS parameter of the first QoS flow on the established PDU session.

As a further optional embodiment, prior to Step <NUM>, the method further includes:
in a case that a PDU session corresponding to the service information identification supported by the relay terminal is established on a Uu interface, judging whether a QoS flow on the established PDU session corresponding to the service information identification supported by the relay terminal is capable of meeting the QoS parameter of the first QoS flow;.

Correspondingly, before step <NUM>, the method further includes:
storing a mapping relation between the flow identification of the first QoS flow and a flow identification of the third QoS flow.

Further, the method further includes:
sending, to the remote terminal, downlink data received from the third QoS flow on the Uu interface, through the first QoS flow on the direct communication interface according to the mapping relation.

Further, the judging whether the QoS flow on the established PDU session corresponding to the service information identification supported by the relay terminal is capable of meeting the QoS parameter of the first QoS flow includes:.

Correspondingly, before step <NUM>, the method further includes:.

Correspondingly, the method further includes the following steps:
sending, to the remote terminal, downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface, through the first QoS flow on the direct communication interface according to the mapping relation.

For example, as shown in <FIG>, the flows of the relay terminal newly establishing or modifying a PDU session and newly establishing or modifying a QoS flow are as follows:.

As another alternative, before step <NUM>, the method further includes:.

The first registration request message further includes relay indication information, and the relay indication information is configured to indicate that a terminal which sends the first registration request message is a relay terminal.

Before the remote terminal and the relay terminal establish direct communication (i.e., the first QoS flow), the network needs to configure parameters to the relay terminal.

For example, as shown in <FIG>, the following is a flowchart of configuring parameters for a relay terminal by a network:.

In summary, according to the embodiment of the present disclosure, a first QoS flow on a direct communication interface between the relay terminal and the remote terminal is established, and the remote terminal communicates with a network through the first QoS flow and a QoS flow on a Uu interface of the relay terminal, so that the QoS flow between the relay terminal and the remote terminal is managed, so that the remote terminal can communicate through the PC5 QoS flow and the Uu QoS flow of the relay terminal.

As shown in <FIG>, an embodiment of the present disclosure further provides a processing method for direct communication, which is applied to a remote terminal, and includes:.

In the embodiment of the disclosure, the direct communication and a first QoS flow are established between a remote terminal and a relay terminal 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 may be referred to as a PC5 QoS flow.

The direct communication request message further includes:
a service information identification supported by the relay terminal. (i.e., Relay Service Code); specifically, the service information identification which is of interest to the remote terminal and is supported by the relay terminal is carried in the direct communication request message.

As an optional embodiment, the method further includes:
communicating with a network through the first QoS flow and the QoS flow established by the relay terminal.

For example, for uplink data, the relay terminal sends 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 the mapping relationship (i.e., the mapping relationship between the PC5 QoS flow identification and the Uu QoS flow identification).

As a further optional embodiment, before step <NUM>, the method further includes:.

The second registration request message includes remote indication information configured to indicate that a terminal sending the second registration request message is a remote terminal.

Before the remote terminal and the relay terminal establish direct communication (i.e. a first QoS flow), the network needs to configure parameters to the remote terminal, so that the remote terminal obtains a service information identification supported by the relay terminal and obtains the terminal as the remote terminal.

As shown in <FIG>, an embodiment of the present disclosure further provides a processing device for direct communication, which is applied to a relay terminal, and includes:.

In the present disclosure, the direct communication request message further includes:
a service information identification supported by the relay terminal.

The device further includes:
a first establishing module configured to, in a case that a PDU session corresponding to the service information identification supported by the relay terminal is not established on a Uu interface, establish the PDU session corresponding to the service information identification supported by the relay terminal on the Uu interface, and establishing a third QoS flow meeting the QoS parameter of the first QoS flow on the established PDU session.

Optionally, in the above embodiment of the present disclosure, the apparatus further includes:.

Optionally, in the above embodiment of the present disclosure, the determining module includes:.

Optionally, in the above embodiment of the present disclosure, the apparatus further includes:
a first storage module, configured to store a mapping relation between the flow identification of the first QoS flow and a flow identification of the third QoS flow.

Optionally, in the above embodiment of the present disclosure, the apparatus further includes:
a first transmission module, configured to send, to the remote terminal, downlink data received from the third QoS flow on the Uu interface, through the first QoS flow on the direct communication interface according to the mapping relation.

Optionally, in the above embodiment of the present disclosure, the apparatus further includes:
a second transmission module, configured to send, to the remote terminal, downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface, through the first QoS flow on the direct communication interface according to the mapping relation.

Optionally, in the embodiment of the present disclosure, the first registration request message further includes relay indication information, and the relay indication information is configured to indicate that a terminal which sends the first registration request message is a relay terminal.

Optionally, in the above embodiment of the present disclosure, the direct communication response message includes: the service information identification supported by the relay terminal, the QoS parameter of the first QoS flow and the flow identification of the first QoS flow.

The embodiment of the present disclosure further provides a processing apparatus for direct communication, and as the principle of the apparatus for solving the problem is similar to the processing method for direct communication in the embodiment of the present disclosure, the implementation of the apparatus may refer to the implementation of the method, and the repetition points are not described again.

It should be noted that, the processing apparatus for direct communication provided in the embodiments of the present disclosure is an apparatus capable of executing the processing method for direct communication, and all embodiments of the processing method for direct communication are applicable to the apparatus and can achieve the same or similar beneficial effects.

As shown in <FIG>, an embodiment of the present disclosure, which is not in accordance with the appended claims and given as an example useful for the understanding of the invention, further provides a relay terminal, including: a transceiver <NUM>, a memory <NUM>, a processor <NUM> and a computer program stored on the memory <NUM> and executable on the processor <NUM>, the transceiver <NUM> receiving and transmitting data under the control of the processor <NUM>, the processor <NUM> being configured to read the program in the memory to perform:.

Optionally, the direct communication request message further includes:
a service information identification supported by the relay terminal.

Optionally, the processor <NUM> is configured to read a program in a memory to perform:
in a case that a PDU session corresponding to the service information identification supported by the relay terminal is not established on a Uu interface, establishing the PDU session corresponding to the service information identification supported by the relay terminal on the Uu interface, and establishing a third QoS flow meeting the QoS parameter of the first QoS flow on the established PDU session.

Optionally, the processor is configured to read a program in a memory to perform:.

Optionally, the processor <NUM> is configured to read a program in a memory to perform:.

Optionally, the processor <NUM> is configured to read a program in a memory to perform::
storing a mapping relation between the flow identification of the first QoS flow and a flow identification of the third QoS flow.

Optionally, the processor <NUM> is configured to read a program in a memory to perform:
sending, to the remote terminal, downlink data received from the third QoS flow on the Uu interface, through the first QoS flow on the direct communication interface according to the mapping relation.

Optionally, the processor <NUM> is configured to read a program in a memory to perform::
sending, to the remote terminal, downlink data received from the second QoS flow or the fourth QoS flow on the Uu interface, through the first QoS flow on the direct communication interface according to the mapping relation.

Optionally, the processor <NUM> is configured to read a program in a memory to perform::.

Optionally, the first registration request message further includes relay indication information, and the relay indication information is configured to indicate that a terminal which sends the first registration request message is a relay terminal.

The embodiment of the present disclosure further provides a relay terminal, and because the principle of solving the problem of the relay terminal is similar to the processing method of direct communication in the embodiment of the present disclosure, the implementation of the relay terminal may refer to the implementation of the method, and the repeated parts are not described again.

It should be noted that, the relay terminal provided in the embodiments of the present disclosure is a relay terminal capable of executing the processing method of direct communication, and all embodiments of the processing method of direct communication are applicable to the relay terminal, and can achieve the same or similar beneficial effects.

An embodiment of the present disclosure further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the foregoing embodiments of the processing method applied to direct communication of a relay terminal, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in <FIG>, an embodiment of the present disclosure further provides a processing apparatus for direct communication, which is applied to a remote terminal, and includes:.

The device further includes:
a communication module configured to communicate with a network through the first QoS flow and the QoS flow established by the relay terminal.

Optionally, in the above embodiment of the present disclosure, the second registration request message includes remote indication information, where the remote indication information is configured to indicate that a terminal sending the second registration request message is a remote terminal.

As shown in <FIG>, an embodiment of the present disclosure, which is not in accordance with the appended claims and given as an example useful for the understanding of the invention, further provides a remote terminal, including: a transceiver <NUM>, a memory <NUM>, a processor <NUM> and a computer program stored on the memory <NUM> and executable on the processor <NUM>, the transceiver <NUM> receiving and transmitting data under the control of the processor <NUM>, the processor <NUM> reading the program in the memory and performing the following operations:.

Optionally, the processor <NUM> is configured to read a program in a memory to perform:
communicating with a network through the first QoS flow and the QoS flow established by the relay terminal.

Optionally, the second registration request message includes remote indication information configured to indicate that a terminal sending the second registration request message is a remote terminal.

The embodiment of the present disclosure further provides a remote terminal, and as the principle of solving the problem of the remote terminal is similar to the processing method of direct communication in the embodiment of the present disclosure, the implementation of the remote terminal may refer to the implementation of the method, and the repeated parts are not described again.

It should be noted that, the remote terminal provided in the embodiments of the present disclosure is a remote terminal capable of executing the processing method for direct communication, and all embodiments of the processing method for direct communication are applicable to the remote terminal and can achieve the same or similar beneficial effects.

It should be noted that, in this document, the terms "includes," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "including an. " does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes several instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods according to the embodiments of the present disclosure.

While the embodiments of the present disclosure have been described in connection with the appended drawings, the present disclosure is not limited to the specific embodiments, which have been described above for illustrative purposes only and not for purposes of limitation, and it will be appreciated by those of ordinary skill in the art that, in light of the present disclosure, numerous modifications may be made without departing from scope of the appended claims.

Claim 1:
A processing method of direct communication, performed by a relay terminal and comprising:
receiving (<NUM>) a direct communication request message sent by a remote terminal, wherein the direct communication request message comprises: a flow identification of a first QoS flow requested to be established and a QoS parameter of the first QoS flow; the first QoS flow is a QoS flow on a direct communication interface between the remote terminal and the relay terminal; and
sending (<NUM>) a direct communication response message to the remote terminal, wherein the direct communication response message is configured to indicate that an establishment of the first QoS flow is finished;
wherein the direct communication request message further comprises:
a relay service code supported by the relay terminal;
characterized in that prior to the sending (<NUM>) the direct communication response message to the remote terminal, the method further comprises:
in a case that a PDU session corresponding to the relay service code supported by the relay terminal is not established on a Uu interface, establishing the PDU session corresponding to the relay service code supported by the relay terminal on the Uu interface, and establishing a third QoS flow meeting the QoS parameter of the first QoS flow on the established PDU session.