CN114698111A

CN114698111A - Method and communication device for transmitting service

Info

Publication number: CN114698111A
Application number: CN202011628681.8A
Authority: CN
Inventors: 潘奇; 黄正磊; 倪慧; 李永翠
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-07-01
Also published as: WO2022143149A1

Abstract

In the technical scheme of the application, access network equipment receives a first data packet; determining a first service of a user equipment request application layer according to the first data packet; determining the data volume of the first service requested by the user equipment; and determining transmission resources according to the data volume, wherein the transmission resources are used for transmitting the first service. In this way, the access network device may determine whether the UE is requesting a service of an application layer, and perform air interface radio resource scheduling for an upcoming service in advance under the condition that it is determined that the UE is requesting the service of the application layer, which is helpful for transmission of service data, thereby improving user experience.

Description

Method and communication device for transmitting service

Technical Field

The present application relates to the field of communications, and more particularly, to a method and a communication apparatus for transmitting traffic.

Background

With the proliferation of traffic data volume, the transmission of traffic places new demands on communication technology. For example, the proliferation of data volume in the media industry, especially the emergence of new media streams such as ultra high definition video, Virtual Reality (VR)/Augmented Reality (AR) panoramic video, etc., presents an unprecedented challenge to network transmission capabilities. From the network layer, the media traffic in the fifth generation (5th generation, 5G) mobile network is expected to exceed 90%, which is the main bearer traffic of the mobile network, and the user media experience largely determines the service experience of the mobile user on the whole mobile network. From the service layer, media are continuously developed to new media forms such as ultra-high-definition videos and 360-degree panoramic VR videos, fashionable control requirements such as second-to-second switching and rapid code rate adaptive switching have increasingly strict requirements on time delay and bandwidth, and the media experience requirements of users cannot be met by simply depending on closed-loop control of the media service layer.

Therefore, the service quality of the service is improved and the user experience is optimized by network assistance, which becomes a research hotspot. At present, the network side cannot provide reasonable and effective optimization processing for service transmission, and the experience of the user side is difficult to guarantee.

Disclosure of Invention

The method and the communication device for transmitting the service can perform air interface wireless resource scheduling for the upcoming service in advance, and are beneficial to transmission of service data, so that the experience of a user side is improved.

In a first aspect, the present application provides a method for transmitting a service, where the method includes:

receiving a first data packet; determining a first service of a user equipment request application layer according to the first data packet; determining the data volume of the first service requested by the user equipment; and determining transmission resources according to the data volume, wherein the transmission resources are used for transmitting the first service.

Alternatively, the method may be performed by the access network device, or may be performed by a module or unit included in the access network device.

In the present application, determining that the user equipment requests the first service of the application layer may also be understood as determining service content or service data of the first service of the application layer requested by the user equipment.

In the above technical solution, the access network device may determine whether the user equipment is requesting a service of an application layer, and perform air interface radio resource scheduling for an upcoming service in advance under the condition that it is determined that the user equipment is requesting the service of the application layer, which is beneficial to transmission of service data, thereby improving user experience.

With reference to the first aspect, in a possible implementation manner, the first data packet includes first indication information, where the first indication information is from the user equipment, and the first indication information is used to indicate that the user equipment requests the first service.

In the above technical solution, the first indication information is from the user equipment, that is, the user equipment indicates that the access network equipment is requesting the first service of the application layer, so that the access network equipment can determine that the user equipment is requesting the service of the application layer, and perform air interface radio resource scheduling for the upcoming service in advance, which is helpful for transmission of service data, thereby improving user experience.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first indication information: transmitting Radio Resource Control (RRC) extended messages or multiplexing existing information element transmissions in RRC messages; or, transmitting by Packet Data Convergence Protocol (PDCP) layer extension bit of uplink data or multiplexing existing cell transmission of PDCP layer; or, the transmission of the extended message is performed through access network bit rate request (ANBRQ) or the transmission of the existing cell in the multiplexed ANBRQ message is performed; or, the uplink data is transmitted to the core network device through a Transmission Control Protocol (TCP) layer or an Internet Protocol (IP) layer extension bit (or an existing multiplexing cell of the TCP layer or the IP layer), and the core network device transmits the uplink data through a N2 message or a general packet radio service transmission protocol (GTP) layer extension bit (or an existing multiplexing cell of the GTP layer).

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first data packet includes second indication information, where the second indication information is from a User Plane Function (UPF), and the second indication information is used to indicate that the user equipment requests the first service.

In the above technical solution, the second indication information is from the UPF, that is, the UPF indicates that the access network device user equipment is requesting the first service of the application layer, so that the access network device may determine that the user equipment is requesting the service of the application layer, and perform air interface radio resource scheduling for the upcoming service in advance, which is helpful for transmission of service data, thereby improving user side experience.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the determining, according to the first data packet, that the ue requests the first service of the application layer includes: and determining that the user equipment requests the first service according to the size of the first data packet.

In the above technical solution, the access network device determines whether the user equipment is requesting the first service of the application layer, and performs air interface radio resource scheduling for the upcoming service in advance, which is helpful for transmission of service data, thereby improving user experience.

Since the uplink data packet of the service is basically a service request message except for Acknowledgement (ACK)/Negative Acknowledgement (NACK) feedback of a TCP layer, it may be determined whether the user equipment is requesting a media fragment according to the size of the received data packet.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the determining that the user equipment requests the first service according to the size of the first data packet includes: determining that the user equipment requests the first service according to the fact that the size of the first data packet meets a preset condition, wherein the preset condition is as follows: the size of the data packet is larger than a first load threshold value; or, the size of the data packet is smaller than a second load threshold value; or the size of the data packet is larger than the first load threshold value and smaller than the second load threshold value.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the method further includes: receiving first information from an application server, wherein the first information comprises the first load threshold value and/or the second load threshold value and third indication information, and the third indication information is used for indicating that whether the user equipment requests the first service is determined by access network equipment.

In the above technical solution, the application server may issue information related to service transmission to the access network device, so as to ensure that the access network device can perform optimization operation for a corresponding service.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the method further includes: and receiving second information from an application server, wherein the second information comprises identification information and data volume corresponding to the identification information, and the identification information is used for indicating code rate.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first data packet further includes fourth indication information, where the fourth indication information is used to indicate a first code rate; the determining the data volume of the first service requested by the user equipment includes: and determining the data volume of the first service requested by the user equipment according to the first code rate and the second information.

In the above technical solution, the fourth indication information is from the user equipment, that is, the user equipment indicates the access network equipment that the access network equipment is requesting the code rate of the first service, so that the access network equipment can determine the data volume of the first service according to the obtained code rate, thereby performing air interface radio resource scheduling for the upcoming service in advance, facilitating transmission of service data, and improving user experience.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the second information further includes network requirement information corresponding to the identification information; the determining the data volume of the first service requested by the user equipment comprises: and determining the data volume of the first service requested by the user equipment according to the network condition and the second information.

Optionally, the access network device may obtain a code rate according to the network condition and the network requirement information corresponding to the identification information, and further determine the data volume of the first service according to the obtained code rate.

In the above technical solution, the access network device may determine the data volume of the first service, and perform air interface radio resource scheduling for the upcoming service in advance, which is helpful for transmission of service data, thereby improving user experience.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the second information further includes information for assisting in selecting a code rate.

The information for assisting in selecting the bitrate may be information related to the media client, such as processor capability of the media client, client resolution, refresh rate, and cache condition of the media client.

In the above technical solution, the access network device considers the information related to the media client when determining the data volume of the first service, so that the determined data volume can be more accurate.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the determining transmission resources according to the data volume includes: and determining the transmission resource according to the data volume and time information, wherein the time information is used for indicating an estimated value of the arrival time of the first service.

That is to say, when the access network device determines the transmission resource, the arrival time of the media segment may also be considered, which is beneficial to improving the utilization rate of the transmission resource.

In a second aspect, the present application provides a method for transmitting a service, where the method includes:

receiving a second data packet from the user equipment; determining a first service of an application layer requested by the user equipment according to the size of the second data packet; and sending a first data packet to access network equipment, wherein the first data packet comprises second indication information, and the second indication information is used for indicating the user equipment to request the first service.

Alternatively, the method may be performed by the UPF, or may be performed by a module or unit included in the UPF.

Since the uplink data packet of the service is basically a service request message except for ACK/NACK feedback of the TCP layer, it can be determined whether the user equipment is requesting for media fragmentation according to the size of the received data packet. In the above technical solution, whether the user equipment is requesting for the next media fragment is determined according to the load condition of the received uplink data packet, so as to determine the media request behavior of the user equipment side and indicate the behavior to the access network equipment, so that the access network equipment can perform pre-scheduling of air interface wireless resources, and provide guarantee for the transmission of the subsequent downlink media fragment.

With reference to the second aspect, in a possible implementation manner, the determining, according to the size of the second data packet, that the user equipment requests the first service of the application layer includes: determining that the user equipment requests the first service according to the fact that the size of the second data packet meets a preset condition, wherein the preset condition is that: the size of the data packet is larger than a first load threshold value; or, the size of the data packet is smaller than a second load threshold value; or the size of the data packet is larger than the first load threshold value and smaller than the second load threshold value.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the method further includes: when the first service is detected, sending fifth indication information to a Session Management Function (SMF), where the fifth indication information is used to indicate that the user equipment is detected to access the first service.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the method further includes: receiving third information from a session management function network element SMF, where the third information includes the first load threshold value and/or the second load threshold value, and sixth indication information, and the sixth indication information is used to indicate that a user plane function network element UPF determines whether a user equipment requests the first service.

In a third aspect, the present application provides a method for transmitting a media service, where the method includes:

requesting a first service; sending a first data packet, where the first data packet includes first indication information and/or fourth indication information, the first indication information is used to indicate a user equipment to request a first service of an application layer, the fourth indication information is used to indicate a first code rate, and the first code rate is used to determine a data volume of the first service.

Alternatively, the method may be performed by the user equipment, or may be performed by a module or unit comprised by the user equipment.

In the present application, requesting the first service may also be understood as requesting the first service of the application layer, requesting service content or service data of the first service, or requesting service content or service data of the first service of the application layer.

In the above technical solution, the user equipment may directly send the corresponding request information and the requested code rate information to the access network equipment when initiating the service request, so that the access network equipment can specify the network requirement and the data size of the downlink service to be reached according to the request information and the code rate information, and perform air interface resource scheduling in advance, thereby ensuring reliable and fast transmission of the downlink service.

With reference to the third aspect, in a possible implementation manner, the method further includes: and receiving seventh indication information from an application server, where the seventh indication information is used to indicate that the user equipment reports the first code rate.

With reference to the third aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the method further includes: receiving identification information from the application server, the identification information being used to indicate a code rate.

With reference to the third aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first indication information and/or the fourth indication information: transmitting through an RRC extended message or multiplexing existing information element transmission in the RRC message; or, the cell transmission is carried out by expanding bit of the PDCP layer of the uplink data or multiplexing the existing cell transmission of the PDCP layer; or, the ANBRQ extended message is transmitted or the existing cell transmission in the ANBRQ message is multiplexed; or, the uplink data is transmitted to the core network device through the TCP layer or IP layer extension bit (or multiplexing existing cells of the TCP layer or IP layer), and the core network device transmits through the N2 message or the downlink data GTP layer extension bit (or multiplexing existing cells of the GTP layer).

In a fourth aspect, the present application provides a method for transmitting a media service, where the method includes:

determining and transmitting at least one of the following information: the code rate selection method comprises identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection, wherein the identification information is used for indicating a code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment.

Alternatively, the method may be performed by an application server, or may be performed by a module or unit comprised by the application server.

It should be noted that, for different technical solutions, the information determined and sent by the application server may be different, and specifically, refer to the description in the detailed description section.

In the above technical solution, the application server may issue information related to service transmission, and may provide corresponding information for a current Protocol Data Unit (PDU) session or a future PDU session, so as to ensure that a network side can perform optimization operation for a corresponding service.

In a fifth aspect, the present application provides a method for transmitting a media service, where the method includes:

receiving at least one of the following information from the application server: the code rate selection method comprises the following steps that identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection are obtained, the identification information is used for indicating the code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment;

sending at least one of the following information to the access network device: the identification information, the network demand information corresponding to the identification information, the data size corresponding to the identification information, a first load threshold value, a second load threshold value, time information, third indication information, and the information for assisting in selecting a code rate, or the first load threshold value and/or the second load threshold value, and sixth indication information are sent to a user plane function network element UPF, or identification information and seventh indication information are sent to user equipment, the third indication information is used for indicating that the access network equipment determines whether the user equipment requests a first service of an application layer, the sixth indication information is used for indicating that the UPF determines whether the user equipment requests the first service of the application layer, and the seventh indication information is used for indicating that the code rate requested by the user equipment is reported.

Alternatively, the method may be performed by the SMF, or may be performed by a module or unit included in the SMF.

The fourth indication information, the sixth indication information, and the seventh indication information may be determined by the application server or may be determined by the SMF, but are not limited thereto.

In some implementations, at least one of the following information may be sent to the access network device when a Protocol Data Unit (PDU) session is established, a PDU session is modified, or fifth indication information sent by the UPF is received: the identification information, the network demand information corresponding to the identification information, the data size, the first load threshold value, the second load threshold value, the time information, the third indication information, and the information for assisting in selecting the code rate, or the first load threshold value and/or the second load threshold value and the sixth indication information are sent to a user plane function network element UPF, or the identification information and the seventh indication information are sent to the user equipment, and the fifth indication information is used for indicating that it is detected that the user equipment is accessing the first service.

In the above technical solution, the SMF may send the information related to the service transmission received from the application server to the access network device, the UPF, or the user equipment, and may provide corresponding information for the current PDU session or future PDU session, so as to ensure that the network side can perform optimization operation for the corresponding service.

In a sixth aspect, the present application provides a communications apparatus, comprising:

and the transceiving unit is used for receiving the first data packet.

The processing unit is used for determining a first service of a user equipment request application layer according to the first data packet; determining the data volume of the first service requested by the user equipment; and determining transmission resources according to the data volume, wherein the transmission resources are used for transmitting the first service.

Optionally, the apparatus may be an access network device, and may also be a module or unit included in the access network device.

In the above technical solution, the access network device may determine whether the UE is requesting a service of an application layer, and perform air interface radio resource scheduling for an upcoming service in advance under the condition that it is determined that the UE is requesting the service of the application layer, which is beneficial to transmission of service data, thereby improving user experience.

With reference to the sixth aspect, in a possible implementation manner, the first data packet includes first indication information, where the first indication information is from the user equipment, and the first indication information is used to indicate that the user equipment requests the first service.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first indication information: transmitting through an RRC extended message or multiplexing existing information element transmission in the RRC message; or, the cell transmission is carried out by expanding bit of the PDCP layer of the uplink data or multiplexing the existing cell transmission of the PDCP layer; or, the ANBRQ extended message is transmitted or the existing cell transmission in the ANBRQ message is multiplexed; or, the uplink data is transmitted to the core network device through the TCP layer or IP layer extension bit (or multiplexing existing cells of the TCP layer or IP layer), and the core network device transmits through the N2 message or the GTP layer extension bit (or multiplexing existing cells of the GTP layer) of the downlink data.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first data packet includes second indication information, where the second indication information is from a UPF, and the second indication information is used to indicate that the user equipment requests the first service.

In the above technical solution, the second indication information is from the UPF, that is, the UPF indicates that the access network device user equipment is requesting the first service of the application layer, so that the access network device can determine that the UE is requesting the service of the application layer, and perform air interface radio resource scheduling for the upcoming service in advance, which is helpful for transmission of service data, thereby improving user experience.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the processing unit is specifically configured to: and determining that the user equipment requests the first service according to the size of the first data packet.

In the above technical solution, the access network device determines whether the user equipment requests the first service of the application layer, and performs air interface radio resource scheduling for the upcoming service in advance, which is helpful for transmission of service data, thereby improving user experience.

Since the uplink data packet of the service is basically a service request message except for ACK/NACK feedback of the TCP layer, it can be determined whether the ue is requesting for media fragmentation according to the size of the received data packet.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the processing unit is specifically configured to: determining that the user equipment requests the first service according to the fact that the size of the first data packet meets a preset condition, wherein the preset condition is as follows: the size of the data packet is larger than a first load threshold value; or, the size of the data packet is smaller than a second load threshold value; or the size of the data packet is larger than the first load threshold value and smaller than the second load threshold value.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the transceiver unit is further configured to: receiving first information from an application server, wherein the first information comprises the first load threshold value and/or the second load threshold value and third indication information, and the third indication information is used for indicating that whether the user equipment requests the first service is determined by access network equipment.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the transceiver unit is further configured to: and receiving second information from an application server, wherein the second information comprises identification information and data volume corresponding to the identification information, and the identification information is used for indicating code rate.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first data packet further includes fourth indication information, where the fourth indication information is used to indicate the first code rate; the processing unit is specifically configured to: and determining the data volume of the first service requested by the user equipment according to the first code rate and the second information.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the second information further includes network requirement information corresponding to the identification information; the processing unit is specifically configured to: and determining the data volume of the first service requested by the user equipment according to the network condition and the second information.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the second information further includes information for assisting in selecting a code rate.

With reference to the sixth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the processing unit is specifically configured to: and determining the transmission resource according to the data volume and time information, wherein the time information is used for indicating an estimated value of the arrival time of the first service.

That is to say, the access network device may also consider the arrival time of the media fragment when determining the transmission resource, which is helpful to improve the utilization rate of the transmission resource.

In a seventh aspect, the present application provides a communications apparatus, comprising:

and the transceiving unit is used for receiving the second data packet from the user equipment.

And the processing unit is used for determining the first service of the application layer requested by the user equipment according to the size of the second data packet.

The transceiver unit is further configured to send a first data packet to an access network device, where the first data packet includes second indication information, and the second indication information is used to indicate the user equipment to request the first service.

Alternatively, the device may be a UPF, or may be a module or unit included in a UPF.

Since the uplink data packet of the service is basically a service request message except for ACK/NACK feedback of the TCP layer, it can be determined whether the user equipment is requesting for media fragmentation according to the size of the received data packet. In the above technical solution, whether the user equipment is requesting for the next media fragment is determined according to the load condition of the received uplink data packet, so as to determine the media request behavior of the UE side and indicate the behavior to the access network equipment, so that the access network equipment can perform pre-scheduling of air interface wireless resources, and provide guarantee for the transmission of the subsequent downlink media fragment.

With reference to the seventh aspect, in a possible implementation manner, the processing unit is specifically configured to: determining that the user equipment requests the first service according to the fact that the size of the second data packet meets a preset condition, wherein the preset condition is that: the size of the data packet is larger than a first load threshold value; or, the size of the data packet is smaller than a second load threshold value; or the size of the data packet is larger than the first load threshold value and smaller than the second load threshold value.

With reference to the seventh aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the transceiver unit is further configured to: and when the first service is detected, sending fifth indication information to a session management function network element (SMF), wherein the fifth indication information is used for indicating that the user equipment is detected to access the first service.

With reference to the seventh aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the transceiver unit is further configured to: receiving third information from a session management function network element SMF, where the third information includes the first load threshold value and/or the second load threshold value, and sixth indication information, and the sixth indication information is used to indicate that a user plane function network element UPF determines whether a user equipment requests the first service.

In an eighth aspect, the present application provides a communications apparatus, comprising:

a transceiving unit for requesting a first service; sending a first data packet, where the first data packet includes first indication information and/or fourth indication information, the first indication information is used to indicate a user equipment to request a first service of an application layer, the fourth indication information is used to indicate a first code rate, and the first code rate is used to determine a data volume of the first service.

Optionally, the apparatus may be a user equipment, and may also be a module or a unit included in the user equipment.

With reference to the eighth aspect, in a possible implementation manner, the apparatus further includes a transceiver unit, configured to receive seventh indication information from an application server, where the seventh indication information is used to indicate that the user equipment reports the first code rate.

With reference to the eighth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the transceiver unit is further configured to: receiving identification information from the application server, the identification information being used to indicate a code rate.

With reference to the eighth aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the first indication information and/or the fourth indication information: transmitting through an RRC extended message or multiplexing existing information element transmission in the RRC message; or, the cell transmission is carried out by expanding bit of the PDCP layer of the uplink data or multiplexing the existing cell transmission of the PDCP layer; or, the ANBRQ extended message is transmitted or the existing cell transmission in the ANBRQ message is multiplexed; or, the uplink data is transmitted to the core network device through the TCP layer or IP layer extension bit (or multiplexing existing cells of the TCP layer or IP layer), and the core network device transmits through the N2 message or the GTP layer extension bit (or multiplexing existing cells of the GTP layer) of the downlink data.

In a ninth aspect, the present application provides a communication apparatus, comprising:

a processing unit for determining at least one of the following information: the code rate selection method comprises identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection, wherein the identification information is used for indicating a code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment.

A transceiving unit for transmitting at least one of the following information: the code rate selection method comprises identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection, wherein the identification information is used for indicating a code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment.

Alternatively, the apparatus may be an application server, and may also be a module or a unit included in the application server.

In the above technical solution, the application server may issue information related to service transmission, and may provide corresponding information for a current PDU session or a future PDU session, so as to ensure that a network side can perform optimization operation for a corresponding service.

In a tenth aspect, the present application provides an apparatus for communication, the apparatus comprising:

a transceiving unit for receiving at least one of the following information from the application server: the code rate selection method comprises the following steps that identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection are obtained, the identification information is used for indicating the code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment;

and for sending at least one of the following information to the access network device: the identification information, the network demand information corresponding to the identification information, the data size corresponding to the identification information, a first load threshold value, a second load threshold value, time information, third indication information, and the information for assisting in selecting a code rate, or the first load threshold value and/or the second load threshold value and sixth indication information are sent to a UPF, or identification information and seventh indication information are sent to a user equipment, the third indication information is used for indicating that the access network equipment determines whether the user equipment requests a first service of an application layer, the sixth indication information is used for indicating that the UPF determines whether the user equipment requests the first service of the application layer, and the seventh indication information is used for indicating that the user equipment reports the requested code rate.

Optionally, the apparatus may be an SMF, or may be a module or unit included in the SMF.

In some implementations, the transceiver unit may send, when establishing the PDU session, modifying the PDU session, or receiving the fifth indication information sent by the UPF, at least one of the following information to the access network device: the identification information, the network demand information corresponding to the identification information, the data size corresponding to the identification information, a first load threshold value, a second load threshold value, time information, third indication information, and the information for assisting in selecting a code rate, or the first load threshold value and/or the second load threshold value, and sixth indication information are sent to a user plane function network element UPF, or the identification information and seventh indication information are sent to a user equipment, and the fifth indication information is used for indicating that it is detected that the user equipment is accessing a first service.

In the above technical solution, the SMF may send the information related to the service transmission received from the application server to the access network device, the UPF, or the user equipment, and may provide corresponding information for the current PDU session or a future PDU session, so as to ensure that the network side can perform an optimization operation for the corresponding service.

In an eleventh aspect, the present application provides a communications apparatus comprising a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to cause the apparatus to perform the method provided by any one of the first to fifth aspects described above, or to perform the method in any one of the possible implementations of the first to fifth aspects. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises an interface circuit, the processor being coupled to the interface circuit.

In a twelfth aspect, the present application provides a processor comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method provided in any one of the first to fifth aspects, or performs the method in any one of the possible implementations of the first to fifth aspects.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be output to and transmitted by a transmitter, for example and without limitation, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In a thirteenth aspect, the present application provides a processing apparatus comprising a processor and a memory. The processor is configured to read instructions stored in the memory and may receive signals via the receiver and transmit signals via the transmitter to perform the method provided by any one of the first to fifth aspects or to perform the method of any one of the possible implementations of the first to fifth aspects.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

The processing means in the above thirteenth aspect may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In a fourteenth aspect, the present application provides a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method provided by any of the first to fifth aspects described above, or to perform the method of any of the possible implementations of the first to fifth aspects.

In a fifteenth aspect, the present application provides a computer-readable medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method provided in any of the first to fifth aspects described above, or in any possible implementation of the first to fifth aspects.

In a sixteenth aspect, the present application provides a communication system comprising at least one of the apparatuses provided in any of the above aspects or possible implementations thereof.

Drawings

Fig. 1 is a schematic diagram of a network architecture to which embodiments of the present application may be applied.

Fig. 2 is a schematic diagram of a periodic ON-OFF characteristic of a media service.

Fig. 3 is a schematic flow chart of a method for transmitting a service provided by the present application.

Fig. 4 is a schematic flowchart of issuing, by an application server, information related to media transmission according to an embodiment of the present application.

Fig. 5 is a schematic flowchart of a method for transmitting a media service according to an embodiment of the present application.

Fig. 6 is a schematic flowchart of a method for transmitting a media service according to an embodiment of the present application.

Fig. 7 is a schematic flowchart of a method for transmitting a media service according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a communication device provided in the present application.

Fig. 10 is a schematic structural diagram of a communication device provided in the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a universal microwave access (WiMAX) communication system, a 5G system or a New Radio (NR) communication system, a satellite communication system, a future mobile communication system, and the like.

Fig. 1 is a schematic diagram of a network architecture to which embodiments of the present application may be applied. Taking the 5G network architecture as an example, the network architecture may include: a User Equipment (UE) 101, a (radio) access network device (RAN) 102, an UPF network element 103, a Data Network (DN) network element 104, an access and mobility management function (AMF) network element 105, an SMF network element 106, an authentication server function (AUSF) network element 107, a Service Communication Proxy (SCP) network element 108, a network data analysis function (NWDAF) network element 109, a network open function (network exposure function, NEF) network element 110, a network data repository function (SCP) location function, an NRF) network element 111, a policy control function module (udf) location, a PCF network element 112, an Application Function (AF) network element 114, and the like.

User equipment 101, (radio) access network equipment 102, UPF network element 103, DN network element 104, AMF network element 105, SMF network element 106, AUSF network element 107, SCP network element 108, NWDAF network element 109, NEF network element 110, NRF network element 111, PCF network element 112, UDM network element 113, AF network element 114 are referred to below simply as UE101, (R) AN102, UPF103, DN104, AMF105, SMF106, AUSF107, SCP108, NWDAF109, NEF110, NRF111, PCF112, UDM113, AF114, respectively.

Wherein:

the UE 101: the UE101 accesses the 5G network and obtains services through a wireless air interface, interacts with the RAN102 through the air interface, and interacts with the AMF105 of the core network through non-access stratum signaling (NAS).

(R) AN 102: the main function is to provide wireless connection, which is responsible for the air interface resource scheduling and air interface connection management of the UE access network, and is located between the UE and the core network node.

UPF 103: the main functions are packet routing and forwarding, mobility anchor, upstream classifier to support routing traffic flow to the data network, and branch point to support multi-homed PDU sessions, etc.

DN 104: is an operator network providing data transmission services for users, such as operator services, internet access or third party services, etc.

AMF 105: and the mobile network is responsible for mobility management in the mobile network, and the main functions comprise user registration, reachability detection, selection of SMF nodes, mobile state transition management and the like.

And (3) SMF 106: the method is responsible for session management in the mobile network, and the main functions are to control the establishment, modification and deletion of the session, the selection of user plane nodes and the like.

AUSF 107: mainly responsible for providing authentication services.

SCP 108: mainly responsible for indirect communication between the network elements and the corresponding network element services.

NWDAF 109: and the system is responsible for network data acquisition, statistics, analysis and decision feedback.

NEF 110: the method is mainly responsible for opening network capability information or providing external information between the method and an external third-party application.

NRF 111: the method is used for the operator network to open the data in the network to the third party application server or receive the data provided by the third party application server for the network.

PCF 112: a policy decision point responsible for providing policies such as quality of service (QoS) policies, slice selection policies, etc.

UDM 113: for storing user data, such as subscription information, authentication/authorization information, etc.

AF 114: is responsible for providing services to the 3rd generation partnership project (3 GPP) network, e.g., affecting traffic routing, interacting with PCFs for policy control, etc.

In the network architecture, N1 is AN interface between UE101 and AMF105, N2 is AN interface between (R) AN102 and AMF105, for NAS message transmission, etc.; n3 is an interface between RAN102 and UPF103, for transmitting user plane data and the like; n4 is an interface between SMF106 and UPF103, and is used to transmit information such as tunnel identification information, data cache indication information, and downlink data notification message of N3 connection; the N6 interface is an interface between the UPF103 and the DN104, and is used for transmitting user plane data and the like; n9 is an interface between UPFs. Namf is a service-based interface presented by AMF105, Nsmf is a service-based interface presented by SMF106, Nausf is a service-based interface presented by AUSF107, Nwdaf is a service-based interface presented by NWDAF109, Nnef is a service-based interface presented by NEF110, Nnrf is a service-based interface presented by NRF111, Npcf is a service-based interface presented by PCF112, Nudm is a service-based interface presented by UDM113, and Naf is a service-based interface presented by AF 114.

It should be noted that the interface between the network elements shown in fig. 1 may also be a point-to-point interface, which is not limited.

User equipment in the embodiments of the present application may also be referred to as terminal equipment, a user, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device, among others. The user equipment may be a cellular phone, a smart watch, a wireless data card, a mobile phone, a tablet computer, a Personal Digital Assistant (PDA) computer, a wireless modem, a handheld device, a laptop computer, a Machine Type Communication (MTC) terminal, a computer with wireless transceiving function, an internet of things terminal, a virtual reality terminal, an augmented reality terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in tele-operation, a wireless terminal in a smart grid, a wireless terminal in transportation security, a wireless terminal in a smart city, a wireless terminal in a smart home, a wireless terminal in satellite communication (e.g., a satellite phone or a satellite terminal, etc.), and so on. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the user equipment.

The access network device in the embodiment of the present application may be a device for communicating with a user equipment, and is mainly responsible for functions of radio resource management, quality of service management, data compression, encryption, and the like on an air interface side. The access network device may be a base station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, a base station (nodeB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolved base station (eNB or eNodeB) in an LTE system, a base station in a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a base station in a Cloud Radio Access Network (CRAN) scenario, a wireless controller in a wireless fidelity (wireless fidelity) system, a relay station, a vehicle-mounted device, or a wearable device. Or the access network equipment can be a terminal which bears the functions of a base station in D2D communication or machine communication. Or the access network device may be a network device in a 5G network or a network device in a PLMN network for future evolution, etc. In addition, the access network device may also be a module or a unit that performs part of the functions of the base station, for example, a Centralized Unit (CU) or a Distributed Unit (DU). The embodiment of the present application does not limit the specific technology and the specific device form adopted by the access network device.

The terminal equipment and the access equipment of the embodiment of the application can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellite vehicles. The embodiment of the application does not limit the application scenes of the access network equipment and the terminal equipment.

The terminal device and the access network device of the embodiment of the application can communicate through the authorized spectrum, can communicate through the unlicensed spectrum, and can communicate through the authorized spectrum and the unlicensed spectrum at the same time. The terminal device and the access network device may communicate with each other through a frequency spectrum of less than 6 gigahertz (GHz), may communicate through a frequency spectrum of more than 6GHz, and may communicate using both a frequency spectrum of less than 6GHz and a frequency spectrum of more than 6 GHz. The embodiments of the present application do not limit the spectrum resources used between the terminal device and the access network device.

It should be understood that the name of each network element shown in fig. 1 is only one name, and the name does not limit the function of the network element itself. In different networks, the network elements may also be given other names, and this embodiment of the present application is not limited to this specific name. For example, in a 6G network, some or all of the above network elements may use the terminology in 5G, or may use other nomenclature, and so on, which are described herein in a unified manner and will not be described again below. Similarly, the interface between the network elements shown in fig. 1 is only an example, and in a 5G network and other networks in the future, the interface between the network elements may not be the interface shown in the figure, and the application is not limited thereto. It should also be understood that the embodiments of the present application are not limited to the system architecture shown in fig. 1. For example, a communication system to which the present application may be applied may comprise more or fewer network elements or devices. The devices or network elements in fig. 1 may be hardware, or may be functionally divided software, or a combination of the two. The devices or network elements in fig. 1 may communicate with each other via other devices or network elements.

With the rapid increase of the service data volume, the transmission of the service puts forward a new demand on the communication technology, and the improvement of the service quality of the service and the optimization of the user experience through network assistance become research hotspots. At present, the network side cannot provide reasonable and effective optimization processing for service transmission, and the experience of the user side is difficult to guarantee.

Taking media services as an example, new media industries rapidly develop and simultaneously put forward new demands on communication technologies. The increasing data volume of the media industry, especially the emerging media streams such as ultra-high-definition video, VR/AR panoramic video and the like, provides unprecedented challenges for network transmission capability. The 5G technology has fallen to the ground by enabling the media industry to render high-definition in real-time and greatly reducing the device's demand for local computing power. The 5G technology can enable a large amount of data to be transmitted in real time, reduces network delay, can meet ultrahigh-definition live video and can enable AR/VR to obtain great development on application with high requirements on image quality and delay.

From the network layer, the media traffic in the 5G mobile network is expected to exceed 90%, which is the main bearer traffic of the mobile network, and the user media experience determines the service experience of the mobile user on the whole mobile network to a great extent; from the perspective of a service layer, media are continuously developed to new media forms such as ultra-high definition videos and 360-degree panoramic VR videos, high-bandwidth and real-time control requirements such as second-second switching, fast rate self-adaptive switching and the like have increasingly strict requirements on time delay and bandwidth, and the media experience requirements of users cannot be met by simply depending on closed-loop control of the media service layer. Therefore, combining the network and the media service, improving the service quality of the media service and optimizing the video experience of the user through network assistance becomes a research hotspot, particularly for AR/VR panoramic video streams, 4K/8K ultra-high-definition video streams and the like.

Existing media service transmission is mainly a media streaming service based on a hypertext transfer protocol (HTTP), such as Moving Picture Experts Group (MPEG) dynamic adaptive streaming over HTTP (DASH), live streaming HTTP (HTTP live streaming, HLS) proposed by apple, HTTP-flv (HTTP Flash video), and dynamic media streaming HTTP (HTTP dynamic streaming), which are widely applied to current media streaming.

For the on-demand service, the media service delivery of the server is closely related to the characteristic of HTTP protocol, i.e. the delivery of the media service strictly depends on the media request sent by the user side media client. In the playing process of the media service, the media client at the user side may have a periodic ON-OFF behavior (ON-OFF) as shown in fig. 2, where ON indicates that the client requests a media fragment or the media fragment is being downloaded, and OFF indicates that the server does not interact with the client and the media fragment is not requested. As shown in fig. 2, when the network is stable, the user-side media client sends a new media request after a certain time and requests again after watching for a certain time, so that the periodic ON-OFF characteristic shown in fig. 2 occurs.

A scheme for transmitting media services is as follows: a complete media stream is divided into a segment of media stream fragments (or called media fragments) with equal length at an Application Server (AS), and the media stream fragments with different qualities are provided for each segment of time length; when the UE initiates a media stream playing request to a specified global resource locator (URL), the application server returns a Media Presentation Description (MPD) that includes URL information of all qualities of all media stream segments; the UE-side media client may sense a network condition according to an average throughput of a Transmission Control Protocol (TCP) layer, and further request a media stream with a corresponding code rate according to the network condition and the throughput of the media stream, so as to implement adaptive code rate adjustment of the media stream; when the buffer of the media client at the UE side is reduced to a certain threshold, a new media fragment request can be initiated again, the buffer can be ensured to be sufficient, and the occurrence of jamming is avoided.

The media fragmentation request of the UE side media client causes ON-OFF characteristics of the downlink media stream, however, the behavior of the media fragmentation request of the UE side media client is affected by many factors, such as the air interface network condition, the state of the buffer area of the UE side media client, the user behavior, and the implementation of the specific media client, and it is difficult to obtain a stable and effective ON-OFF periodic flow characteristic, so that the network side cannot accurately predict the arrival time of the downlink media stream.

In addition, in order to ensure the security privacy of users and the copyright problem of video media, the existing mainstream solution applies Digital Rights Management (DRM), and the transport layer often uses a secure hypertext transport protocol (HTTP over TLS/SSL, HTTPs) transport protocol based on Transport Layer Security (TLS)/Secure Socket Layer (SSL) to secure the data in network transmission. Further encryption of the media service makes it difficult for the network side to identify the media service characteristics.

Therefore, at present, the network side cannot provide reasonable and effective optimization processing for media service transmission, and media playing experience of the user side is difficult to guarantee.

In view of the above problems, the present application provides a method and a communication device for transmitting a service, in a technical scheme of the present application, an access network device may determine whether a UE requests a service of an application layer, and perform air interface radio resource scheduling for an upcoming service in advance under the condition that it is determined that the UE requests the service of the application layer, which is beneficial to improving user experience.

Fig. 3 is a schematic flow chart of a method for transmitting a service provided by the present application. The method shown in fig. 3 may be performed by the user equipment, the access network equipment and the UPF, or may be performed by modules or units in the user equipment, the access network equipment and the UPF. The following describes the technical solution of the present application by taking the execution subject as user equipment, access network equipment, and UPF as an example. The method illustrated in fig. 3 may include at least some of the following.

Step 301, the access network device receives a first data packet.

Step 302, the access network device determines that the user equipment requests the first service of the application layer according to the first data packet.

The embodiment of the present application does not specifically limit the type of the first service. For example, the first service may be the media service mentioned above.

In the present application, the implementation manners of steps 301-302 are many, and this is not particularly limited. For example, the steps 301-302 can be implemented by any one of the ways 1 to 4 shown in fig. 3.

Mode 1

When the user equipment requests the first service of the application layer, the user equipment sends a first data packet to the access network equipment, and correspondingly, the access network equipment receives the first data packet from the user equipment. The first data packet comprises first indication information, wherein the first indication information is used for indicating the user equipment to request the first service. In this case, the access network device may determine that the user equipment requests the first service of the application layer according to the first indication information.

For example, the first data packet may be an RRC message transmitted by the user equipment. For example, the first indication information is added in an extension bit of the RRC message, or an existing information element in the RRC message is multiplexed as the first indication information.

For another example, the first packet may be an uplink packet, and the first indication information is transmitted through a PDCP layer of the first packet. The first indication information is transmitted through the PDCP layer of the first packet, which can also be understood as adding the first indication information to the PDCP layer extension bit of the first packet or multiplexing the existing cell of the PDCP layer as the first indication information.

For another example, the first data packet may be an ANBRQ message sent by the ue, and it may be understood that the first indication information is added to an extension bit portion of the ANBRQ message or an existing information element in the ANBRQ message is multiplexed as the first indication information.

In mode 1, the first indication information is from the user equipment, that is, the user equipment indicates to the access network equipment that it is requesting the first service of the application layer.

Mode 2

Step 305 may be performed before step 301.

Step 305, when the user equipment requests the first service of the application layer, the user equipment sends first indication information to the UPF, where the first indication information is used to indicate that the user equipment requests the first service.

After receiving the first indication information from the user equipment, the UPF may send a first data packet to the access network equipment, where the first data packet includes the first indication information. After receiving the first data packet from the UPF, the access network device may determine, according to the first indication information, that the user equipment requests the first service of the application layer.

For example, the user equipment sends first indication information to the UPF through a TCP layer or IP layer extension bit (or an existing cell of a multiplexed TCP layer or IP layer) of uplink data; and the UPF sends the first indication information to the access network equipment through the downlink data packet. The first indication information may be transmitted by an SMF sending N2 message, or may be transmitted by a GTP layer extension bit of a downlink data packet (or multiplexing an existing GTP layer cell).

In mode 2, the first indication information is from the user equipment, that is, the user equipment indicates to the access network equipment that it is requesting the first service of the application layer.

Mode 3

Step 306-307 may be performed before step 301.

Step 306, when the user equipment requests the first service of the application layer, the user equipment sends a second data packet to the UPF.

Step 307, after receiving the second data packet, the UPF determines, according to the size of the second data packet, that the user equipment requests the first service of the application layer.

After determining that the user equipment requests the first service of the application layer, the UPF may send a first data packet to the access network equipment, where the first data packet includes the second indication information. After receiving the first data packet from the UPF, the access network device may determine, according to the second indication information, that the user equipment requests the first service of the application layer.

Likewise, the first packet may be a downstream packet. That is, the UPF may send the second indication information to the access network device through the downlink data packet. The second indication information may be transmitted by an SMF sending N2 message, or may be transmitted by a GTP layer extension bit of a downlink data packet (or multiplexing an existing GTP layer cell).

In the embodiment of the present application, a manner that the UPF determines that the user equipment requests the first service of the application layer according to the size of the first data packet is not specifically limited. As an example, the UPF determines whether the size of the second packet satisfies a preset condition. If the size of the second data packet meets the preset condition, the UPF determines that the user equipment requests a first service of an application layer; and if the size of the second data packet does not meet the preset condition, the UPF determines that the data packet is not a request message for requesting the first service.

Optionally, the preset condition may be that the size of the data packet is greater than a first load threshold, or the size of the data packet is smaller than a second load threshold, or the size of the data packet is greater than the first load threshold and smaller than the second load threshold. And the first load threshold value and the second load threshold value are data packet load threshold values.

In mode 3, it is determined by the UPF whether the user equipment requests the first service of the application layer and indicates to the access network equipment. Optionally, in some cases, the UPF may receive sixth indication information from the application server or the SMF, the sixth indication information indicating whether the user equipment requests the first service of the application layer as determined by the UPF.

Mode 4

When the user equipment requests the first service of the application layer, the user equipment sends a first data packet to the access network equipment, and the access network equipment receives the first data packet from the user equipment. In this case, the access network device may determine whether the user equipment requests the first service of the application layer according to the size of the first data packet.

In the embodiment of the present application, a manner for determining, by the access network device, that the user equipment requests the first service of the application layer according to the size of the first data packet is not specifically limited. As an example, the access network device determines whether the size of the first data packet satisfies a preset condition. If the size of the first data packet meets the preset condition, the access network equipment determines that the user equipment requests a first service of an application layer; if the size of the first data packet does not meet the preset condition, the access network equipment determines that the data packet is not a request message for requesting the first service.

In mode 4, it is determined by the access network device whether the user equipment requests the first service of the application layer. Optionally, in some cases, the access network device may receive third indication information from the application server or the SMF, where the third indication information is used to indicate that whether the user equipment requests the first service of the application layer is determined by the access network device.

Step 303, the access network device determines the data volume of the first service requested by the user equipment.

In some implementations, the access network device may determine the first code rate first, and further determine the data volume of the first service requested by the user according to the first code rate and the data volume corresponding to the first code rate.

There are many ways for the access network device to determine the first code rate in the present application, and this is not particularly limited.

As an example, the access network device may obtain the first code rate from the user equipment. That is, the code rate of the requested first service is determined and reported by the user equipment.

For example, the user equipment may determine the first code rate according to the current network condition and the network requirement information corresponding to the identification information, or the user equipment may determine the first code rate according to the current network condition, the network requirement information corresponding to the identification information, and the information for assisting code rate selection, and carry fourth indication information in the first data packet, where the fourth indication information is used to indicate the first code rate, and the identification information is used to indicate the code rate; and after receiving the fourth indication information, the access network equipment determines the first code rate according to the fourth indication information. The sending of the fourth indication information is similar to the sending of the first indication information, and reference may be made to the related description of the first indication information, which is not described herein again.

As another example, the access network device may determine the first code rate according to the current network condition and the network requirement information corresponding to the identification information. The network requirement information may be bandwidth requirement, delay requirement, rate requirement, etc.

As yet another example, the access network device may determine the first code rate according to the current network condition, the network requirement information corresponding to the identification information, and the information for assisting in selecting the code rate. The information for assisting in selecting the bitrate may be information related to the media client, such as processor capability of the media client, client resolution, refresh rate, and cache condition of the media client.

It should be noted that the first indication information and the fourth indication information may also be carried by different data packets, and this is not particularly limited.

Step 304, the access network device determines a transmission resource according to the data volume of the first service requested by the user equipment, wherein the transmission resource is used for transmitting the first service.

In other implementations, the access network device may determine transmission resources for transmitting the first service according to a data amount of the first service requested by the user equipment and time information, where the time information is used to indicate an estimated value of an arrival time of the first service. That is, the access network device may also consider the arrival time of the first service when determining the transmission resources.

It should be noted that the first load threshold and/or the second load threshold may be predefined, or may be obtained by the access network device or the UPF from the application server, which is not limited. Similarly, the identification information, the network requirement information corresponding to the identification information, and the data amount corresponding to the identification information may be predefined, or may be obtained from an application server by the user equipment or the access network equipment, which is not limited. The time information may be determined by the access network device, for example, the time information is an empirical value set by the access network device; or the time information may also be obtained by the access network device from other network elements, for example, the time information is an empirical value from the UPF or is from an external application server, which is not limited.

If the first load threshold, the second load threshold, the identification information, the network requirement information corresponding to the identification information, the data size corresponding to the identification information, or the time information is obtained from the application server, the application server may send the information to the access network device or the user equipment when the PDU session is established or modified, or the application server may send the information to the SMF when the PDU session is established or modified, the SMF may send the information to the access network device or the user equipment when receiving fifth indication information sent by the UPF, and the fifth indication information is used for indicating that it is detected that the user equipment is accessing the first service. The UPF may send fifth indication information to the SMF upon detecting that the user equipment accesses the first service.

It should be further noted that, determining that the user equipment requests the first service of the application layer may also be understood as determining that the user equipment requests service content or service data of the first service of the application layer, determining that the user equipment is requesting the service content or service data in the first service of the application layer, and the like.

Through the method in fig. 3, the access network device may determine whether the UE is requesting a service of an application layer, and perform air interface radio resource scheduling for an upcoming service in advance under the condition that it is determined that the UE is requesting the service of the application layer, which is beneficial to transmission of service data, thereby improving user experience.

A specific implementation of the method for transmitting a service provided by the present application is described below with reference to fig. 4 to fig. 7. Fig. 4 to fig. 7 illustrate a transmission media service as an example.

In the embodiment of the application, the application server can provide the information related to the media service transmission to the network side through the capability opening, so that the network side can monitor the media service corresponding to the information and can perform optimization processing operation when the media service arrives.

The information related to the media service transmission may include service information, stream description information, threshold information, and the like.

1) The traffic information may include at least one of the following information: the code rate identification information, the network requirement information corresponding to the code rate identification information, the data volume corresponding to the code rate identification information, and the information for assisting in selecting the code rate.

Wherein:

the code rate identification information is used to identify different code rates, and may be an index, a number, etc. of the code rates, for example, 1, 2, 3,4 may respectively represent video sources with resolutions of 4K, 2K, 1080p, 720p, and the code rates may represent 8Mbps, 4Mbps, 2Mbps, 1 Mbps.

The information for assisting in selecting the bitrate may be information related to the media client, such as processor capability of the media client, client resolution, refresh rate, and cache condition of the media client, and the like, depending on the algorithm logic in the bitrate adaptive adjustment process performed by the service.

In addition, the network requirement information corresponding to at least one code rate identification information may also be described as the network requirement information corresponding to at least one code rate, and the data volume corresponding to at least one code rate identification information may also be described as the data volume corresponding to at least one code rate.

The data amount corresponding to the code rate identification information can be represented in a table form or a key value pair form.

For example, the code rates can be represented by 1, 2, 3,4 as 8Mbps, 4Mbps, 2Mbps, 1Mbps, respectively; the corresponding data amounts are 16M, 8M, 4M, 2M, respectively. The data amount corresponding to the code rate identification information may be as shown in table 1.

TABLE 1

Code rate identification information	Data volume
		1	16M
2	8M
		3	4M
4	2M

For another example, the data amount corresponding to the code rate identification information may be represented as: <1,16>, <2,8>, <3,4>, <4,2 >.

2) The threshold information is used to distinguish whether the data packet is a media fragment request message, for example, the first load threshold value and/or the second load threshold value.

In some implementations, the information related to the media service transmission may be sent to the access network device and/or the UPF through a PDU session establishment procedure or a PDU session modification procedure.

Step 401, the AF or AS sends the above information related to the media service transmission to the PCF. Accordingly, the PCF receives information related to the media service transmission from the AF or AS.

Optionally, the AF or AS may notify the PCF of the above information related to the media service transmission through an AF request message (AF request). Specifically, the AF may modify the information in the UDR through the AF request message, and then the update of the information in the UDR triggers the notification to the PCF, so that the corresponding information is sent to the PCF side.

Then, when the UE initiates a PDU session setup procedure or a PDU session modification procedure, the PCF may issue the above-mentioned information related to the media service transmission to the access network device and/or the UPF through the PDU session setup procedure or the PDU session modification procedure.

In step 402, the UE sends a PDU session setup request message or a PDU session modify request message to the SMF. Accordingly, the SMF receives a PDU session setup request message or a PDU session modify request message from the UE.

Step 403, after receiving the PDU session establishment request message or the PDU session modification request message, the SMF initiates a session management policy association establishment (session management policy association establishment) flow or a session management policy association modification (session management policy association modification) flow to the PCF.

In the session management policy association establishment procedure or the session management policy association modification procedure, the PCF may send the service information, the threshold information, the corresponding Policy Control and Charging (PCC) rule, and the like to the SMF.

After receiving the traffic information, the threshold information, the PCC rule, etc., the SMF may send the traffic information and/or the threshold information to other network elements (e.g., RAN, UPF, UE, etc.).

In some implementations, the SMF may send the threshold information to the UPF and indicate that the UPF determines whether the UE is requesting the media fragment according to the threshold information.

For example, as shown in step 404, the SMF may send the corresponding PDR, sixth indication information and threshold information to the UPF side through an N4 session establishment procedure or an N4 session modification procedure, wherein the sixth indication information is used for indicating whether the UPF determines whether the UE is requesting the media fragment according to the threshold information.

In some implementations, the SMF may send the threshold information and the service information to the access network device, and instruct the access network device to determine whether the UE is requesting the media fragment according to the threshold information.

For example, as shown in steps 405a and 406a, the SMF may send third indication information, threshold information, and service information to the access network device, where the third indication information is used to indicate that the access network device determines whether the UE is requesting the media fragment according to the threshold information.

In step 405a, the SMF may transmit at least one of third indication information, traffic information, and threshold information to the AMF. For example, the SMF may transmit at least one of the third indication information, the traffic information, and the threshold information to the AMF through the N2 SM container.

In step 406b, the AMF may transmit at least one of third indication information, traffic information, and threshold information to the access network device. For example, the AMF may transmit the above-described N2 SM container to the access network device through an N2 PDU session request message.

In some implementations, the SMF may send the service information to the UE and indicate the UE to report the requested code rate.

For example, as shown in steps 405b, 406b, and 407, the SMF may send seventh indication information and/or traffic information to the UE, where the seventh indication information is used to indicate a code rate requested by the UE to report.

In step 405b, the SMF may send seventh indication information and/or traffic information to the AMF. For example, the SMF may transmit the seventh indication information and/or the traffic information to the AMF through the N1 SM container.

In step 406b, the AMF sends seventh indication information and/or traffic information to the access network device. For example, the AMF may send the above-described N1 SM container to the access network device through a NAS message.

In step 407, the access network device may send seventh indication information and/or traffic information to the UE. For example, the access network device may send the seventh indication information and/or the service information through a NAS message.

In step 408, each network element completes the remaining PDU session establishment procedure or PDU session modification procedure.

It should be noted that, for different technical solutions, the information sent by the SMF to the access network device, the UPF, and the UE may be different, for example, when the UPF determines whether the UE is requesting the media fragment according to the threshold information, the threshold information may not be sent to the access network device. For another example, when the access network device determines whether the UE is requesting the media segment according to the threshold information, the threshold information may not be sent to the UPF. For another example, when the UPF or the access network device determines whether the UE is requesting the media fragment according to the threshold information, the seventh indication information and the service information may not be sent to the UE. In other words, for different technical solutions, the SMF may send or not send some or all of the above information related to the media service transmission to the access network device, the UPF, and the UE.

Through the technical scheme, the application server can inform the access network equipment and the core network equipment of the information related to the media service transmission through the network capacity open interface and the PDU session establishment or modification process, so that the corresponding information can be provided for the current PDU session or the future PDU session, and the optimization operation can be performed on the corresponding media service.

In this application, after the PDU session is established, when the UE accesses the media service, the access network device may determine whether the UE is requesting a new media fragment, and perform air interface radio resource scheduling for the new media fragment in advance under the condition that it is determined that the UE is requesting the new media fragment.

1. Detecting by UPF whether UE is requesting new media fragment

Fig. 5 is a schematic flowchart of a method for transmitting a media service according to an embodiment of the present application. The method shown in fig. 5 may be performed by a UE, a RAN, an AMF, an SMF, and a UPF, or may be performed by a unit or a module (e.g., a circuit, a chip, a System On Chip (SOC), etc.) in the UE, the RAN, the AMF, the SMF, and the UPF, and the following description will take the UE, the RAN, the AMF, the SMF, and the UPF as examples.

The method illustrated in fig. 5 may include at least some of the following.

Step 501, the UE sends an uplink service data packet to the UPF. Accordingly, the UPF receives data packets from the UE.

Step 502, the UPF determines whether the UE is accessing the media service according to the received data packet.

Alternatively, the UPF may determine whether the UE is accessing the media service according to the PDR packet detection rule from the SMF. For example, the UPF determines whether the UE is accessing the media service according to the IP address, the port number, and the protocol type of the target server.

If the UPF detects that the UE is accessing the media service, the UPF may further perform step 503.

In step 503, the UPF determines whether the UE is requesting media fragmentation according to the size of the received data packet (or referred to as the load condition of the data packet).

In some implementations, the UPF determines whether the UE is requesting a media fragment according to the size of the received data packet and a preset condition. The preset condition may be that the size of the data packet is greater than a first load threshold, or the size of the data packet is smaller than a second load threshold, or the size of the data packet is greater than the first load threshold and smaller than the second load threshold, and the like.

Since the uplink data packet of the media service is basically a media fragment request message except for an Acknowledgement (ACK) of the TCP layer, the UPF may determine whether the UE requests the next media fragment according to the size of the received data packet. For example, the UPF may determine that the UE is requesting a media fragment when the size of the data packet is greater than a first load threshold value. For another example, when the size of the data packet is smaller than the second load threshold value, the UPF may determine that the UE is requesting the media segment. For another example, when the size of the data packet is greater than the first load threshold and smaller than the second load threshold, the UPF may determine that the UE is requesting the media fragment.

For example, the UPF may determine the size of the data packet according to a total length (total length) field of an IP header of the data packet, or determine the size of the data packet according to a storage space occupied by the data packet, or determine the size of the data packet or a load condition of the data packet by other ways, which is not specifically limited in this embodiment of the application.

When it is determined that the UE is requesting the media fragmentation, the UPF may send second indication information to the access network device, and indicate the access network device that the UE is requesting the media fragmentation. There are many ways for the UPF to send the second indication information to the access network device, and this embodiment of the present application is not specifically limited. For example, the UPF may send the second indication information to the access network device in the manner 1 or the manner 2 as shown in fig. 5.

Mode 1: step 504-505

At step 504, the UPF sends a second indication to the SMF. Accordingly, the SMF receives the second indication information from the UPF.

Optionally, the UPF may send the second indication information to the SMF through an N4 session reporting procedure.

And step 505, after receiving the second indication information sent by the UPF, the SMF sends the second indication information to the access network device.

Alternatively, the SMF may send the second indication information to the access network device through an N2 SM message.

In this manner, the UPF sends the second indication information to the access network device through the SMF.

Mode 2: step 506

In this manner, the UPF may send the second indication information directly to the access network device. For example, the UPF may carry the second indication information on a GTP layer of the downlink data, and send the second indication information to the access network device by sending the downlink data.

The downlink data may be a downlink data packet, a null packet (or referred to as a null data packet) constructed by the UPF, and the like.

In step 507, after receiving the second indication information, the access network device may determine that the UE is requesting the media segment according to the second indication information.

In step 508, the access network device estimates the data size of the media segment.

In some implementation manners, the access network device may determine the first code rate according to the current network condition and the network requirement information corresponding to the at least one code rate identification information in the service information, and/or the information for assisting in selecting the code rate, and determine the data volume corresponding to the first code rate, that is, the estimated value of the data volume of the media segment, according to the first code rate and the data volume corresponding to the at least one code rate identification information in the service information. The network requirement information may be bandwidth requirement, delay requirement, rate requirement, etc.

In other implementation manners, the user equipment may report the requested code rate, that is, the access network equipment may obtain the first code rate from the user equipment, and determine, according to the first code rate and the data amount corresponding to the at least one code rate identification information in the service information, a data amount corresponding to the first code rate, that is, an estimated value of the data amount of the media segment.

In other implementation manners, when it is determined that the user equipment is requesting the media segment, the access network equipment may directly determine the data amount of the media segment according to the network requirement information corresponding to the maximum bit rate and/or the data amount corresponding to the maximum bit rate.

In step 509, the access network device reserves transmission resources for the next media segment according to the data size determined in step 508. The transmission resource may be an air interface transmission resource.

In other implementations, the access network device may reserve transmission resources for the next media segment according to the data amount and time information determined in step 508. Wherein the time information is used to indicate an estimate of the time of arrival of the next media segment. That is to say, the access network device may also consider the arrival time of the media fragment when determining the transmission resource, which is helpful to improve the utilization rate of the transmission resource.

The time information may be determined by the access network device, for example, the time information may be an empirical value set by the access network device. The time information may also be obtained by the access network device from other network elements, for example, the time information may be an empirical value from a UPF or may be from an external application server.

It should be noted that, if the UPF detects that the UE is accessing the media service, and the SMF does not send the information related to the media service transmission to the access network device or the UE in the PDU session establishment procedure or the PDU session modification procedure shown in fig. 4, steps 510 and 511 may also be executed.

At step 510, the UPF sends a fifth indication message to the SMF. Accordingly, the SMF receives the fifth indication information transmitted by the UPF. Wherein the fifth indication information is used for indicating that the UPF detects the media service.

In step 511, after receiving the fifth indication information, the SMF may send part or all of the information related to the media service transmission to the access network device or the UE. For example, the SMF may send the traffic information, the threshold information, and the third indication information to the access network device. For another example, the SMF may transmit the seventh indication information to the UE.

By the technical scheme, the UPF can judge whether the UE requests the next media fragment according to the load condition of the received uplink data packet, so that the media request behavior of the UE side is determined and indicated to the access network equipment, the access network equipment can perform pre-scheduling of air interface wireless resources, and guarantee is provided for the transmission of the subsequent downlink media fragment.

2. Detecting, by an access network device, whether a UE is requesting a new media fragment

Fig. 6 is a schematic flowchart of a method for transmitting a media service according to an embodiment of the present application. The method shown in fig. 6 may be performed by a UE, RAN, AMF, SMF, UPF, or may be performed by a unit or module (e.g., a circuit, a chip, an SOC, etc.) in the UE, RAN, AMF, SMF, UPF, and the following description takes the UE, RAN, AMF, SMF, UPF as an example of an execution subject.

Unlike fig. 5, in the method shown in fig. 6, it is detected by the access network device whether the UE is requesting a new media fragment. The method illustrated in fig. 6 may include at least some of the following.

Step 601, the UE sends an uplink data packet.

In step 602, the access network device determines whether the UE is requesting a media segment according to the size of the received data packet (or referred to as a load condition of the data packet).

In some implementations, the access network device determines whether the UE is requesting the media segment according to the size of the received data packet and a preset condition. The preset condition may be that the size of the data packet is greater than a first load threshold, or the size of the data packet is smaller than a second load threshold, or the size of the data packet is greater than the first load threshold and smaller than the second load threshold, or the like.

Since the uplink data packet of the media service is basically a media fragment request message except for an Acknowledgement (ACK) of the TCP layer, the access network device may determine whether the UE requests the next media fragment according to the size of the received data packet. For example, the access network device may determine that the UE is requesting the media fragment when the size of the data packet is greater than a first load threshold. For another example, when the size of the data packet is smaller than the second load threshold, the access network device may determine that the UE is requesting the media fragment. For another example, when the size of the data packet is greater than the first load threshold and smaller than the second load threshold, the access network device may determine that the UE is requesting the media fragment.

There are many ways for the access network device to determine the size of the data packet, for example, the access network device may determine the size of the data packet according to the storage space occupied by the data packet, or may determine the size of the data packet or the load condition of the data packet through other ways, which is not specifically limited in this embodiment of the present application.

In step 603, when it is determined that the UE is requesting a media segment, the access network device may estimate the data amount of the media segment.

Step 604, the access network device reserves transmission resources for the next media fragment according to the data volume determined in step 603. The transmission resource may be an air interface transmission resource.

The implementation manner of step 603 and step 604 may refer to the description of step 508 and step 509, and will not be described herein again.

Similarly, if the SMF does not send the information related to the media service transmission to the access network device or the UE in the PDU session establishment procedure or the PDU session modification procedure as shown in fig. 4, steps 605 and 607 can also be executed.

Step 605, the UPF determines whether the UE is accessing the media service according to the received uplink data packet.

If the UPF detects that the UE is accessing the media service, the UPF may further perform step 606.

In step 606, the UPF sends a fifth indication message to the SMF. Accordingly, the SMF receives the fifth indication information sent by the UPF. Wherein the fifth indication information is used for indicating that the UPF detects the media service,

specifically, the UPF sends the fifth indication information to the SMF side through the N4 session reporting process.

In step 607, after receiving the fifth indication information, the SMF may send part or all of the information related to the media service transmission to the access network device or the UE. For example, the SMF may send the traffic information, the threshold information, and the third indication information to the access network device. For another example, the SMF may transmit the seventh indication information to the UE.

By the technical scheme, the access network equipment can judge whether the UE requests the next media fragment according to the load condition of the received uplink data packet, so that the media request behavior of the UE side is determined, the air interface wireless resource is prescheduled further according to the corresponding network requirement information, and guarantee is provided for the transmission of the subsequent downlink media fragment.

3. Media fragmentation requested for specific code rate indicated by UE to access network equipment

Fig. 7 is a schematic flowchart of a method for transmitting a media service according to an embodiment of the present application. The method shown in fig. 7 may be performed by a UE, RAN, AMF, SMF, UPF, PCF, AF/AS, or may be performed by a unit or module (e.g., a circuit, a chip, an SOC, etc.) in the UE, RAN, AMF, SMF, UPF, PCF, AF/AS, and the following description will take the execution subject AS UE, RAN, AMF, SMF, UPF, PCF, AF/AS an example.

As with fig. 5 and 6, in the method shown in fig. 7, the request for a media fragment and the code rate corresponding to the media fragment are indicated directly to the access network device by the UE. The method illustrated in FIG. 7 may include at least some of the following.

In step 701, a user equipment requests a media segment.

For example, the user equipment sends a media fragment request message when determining that a new media fragment needs to be requested.

After determining that a new media fragment needs to be requested, the user equipment may send first indication information and fourth indication information to the access network equipment, where the first indication information is used to indicate that the user equipment requests the media fragment, and the fourth indication information is used to indicate a code rate requested by the user equipment.

In some implementations, the user equipment may determine the code rate of the requested media segment according to the current network condition and the network requirement information corresponding to the identification information, or the user equipment may determine the code rate of the requested media segment according to the current network condition, the network requirement information corresponding to the identification information, and the information for assisting code rate selection.

It should be noted that the first indication information and the fourth indication information may be the same information, for example, the UE may indicate, by one information bit, the bit rate of the media segment requested by the UE and the media segment whose corresponding bit rate is being requested by the UE. The first indication information and the fourth indication information may be different information, for example, the user equipment uses two information bits, one for indicating that the UE is requesting a media slice, and the other indicating a bitrate of the media slice requested by the UE.

There are many ways for the UE to send the first indication information and the fourth indication information, and the embodiment of the present application is not particularly limited. For example, it can be realized by the mode 1, the mode 2, and the mode 3 as shown in fig. 7.

Mode 1: step 702

In this manner, the user equipment directly sends the first indication information and the fourth indication information to the access network equipment.

For example, the UE may send the first indication information and the fourth indication information to the access network device through an RRC message.

For another example, the UE may add the first indication information and the fourth indication information in a PDCP layer extension bit of uplink data, or multiplex an existing cell in an RRC message as the first indication information and the fourth indication information. And sending the first indication information and the fourth indication information to the access network equipment by sending uplink data to the access network equipment.

For another example, the UE may add the first indication information and the fourth indication information to the ANBRQ message displayed. And sending the first indication information and the fourth indication information to the access network equipment by sending the expanded ANBRQ message to the access network equipment.

Mode 2: step 703-705

In step 703, the UE sends the first indication information and the fourth indication information to the UPF.

For example, the UE may put the first indication information and the fourth indication information into a TCP/IP layer of the uplink data (e.g., in an option field) to the UPF.

Step 704, after receiving the first indication information and the fourth indication information, the UPF sends the first indication information and the fourth indication information to the SMF.

For example, the UPF detects the uplink data, and when the first indication information and the fourth indication information in the TCP/IP layer of the uplink data are detected, the N4 session reporting procedure may be triggered, so as to send the first indication information and the fourth indication information to the SMF.

Step 705, after receiving the first indication information and the fourth indication information, the SMF sends the first indication information and the fourth indication information to the access network device.

For example, the SMF may transmit the first indication information and the fourth indication information to the access network device through an N2 SM message.

In this manner, the user equipment sends the first indication information and the fourth indication information to the access network equipment through the UPF and the SMF.

Mode 3: step 706-707

In step 706, the UE sends the first indication information and the fourth indication information to the UPF.

In step 707, after receiving the first indication information and the fourth indication information, the UPF directly sends the first indication information and the fourth indication information to the access network device.

For example, the UPF detects the uplink data, and when the first indication information and the fourth indication information in the TCP/IP layer of the uplink data are detected, the first indication information and the fourth indication information may be directly sent to the access network device through the GTP layer of the downlink data.

In this manner, the user equipment sends the first indication information and the fourth indication information to the access network equipment through the UPF.

The access network device may perform step 708 after receiving the first indication information and the fourth indication information.

It should be noted that the user equipment may add the first indication information and the fourth indication information to the media fragmentation request message, or may send the first indication information and the fourth indication information separately from the media fragmentation request message, which is not limited.

In step 708, after receiving the first indication information and the fourth indication information, the access network device may perform resource pre-scheduling according to the first indication information and the fourth indication information.

In some implementations, the access network device may determine that the user equipment is requesting a media segment according to the first indication information, and reserve transmission resources for a next media segment according to a code rate indicated by the fourth indication information and a data amount corresponding to the code rate.

The specific implementation manner of reserving transmission resources by the access network device may refer to the above description, and is not described herein again.

It should be noted that, if the UE does not receive the information related to the media service transmission sent by the network side in the PDU session establishment procedure or the PDU session modification procedure, the UE may further execute step 709.

In step 709, the UE receives the seventh indication information and the service information from the application server. The seventh indication information is used to indicate a code rate requested by the UE, and the service information may include identification information of at least one code rate.

For example, the UE may receive the seventh indication information and the service information transmitted by the application server through the application layer information.

By the technical scheme, the UE can directly send the media fragmentation request information and the code rate information of the requested specific media fragmentation to the access network equipment when a new media fragmentation request is initiated, so that the access network equipment can determine the network requirement and the data volume of the downlink media fragmentation to be reached according to the media fragmentation request and the code rate information, and perform air interface resource scheduling in advance to ensure reliable and rapid transmission of the downlink media fragmentation.

It should be noted that, under different scenarios or conditions, the network elements in fig. 4 to fig. 7, such AS the UE, RAN, AMF, SMF, UPF, PCF, AF/AS, may also be replaced by other network elements having the same or similar functions, which is not specifically limited in this embodiment of the application.

It should be understood that the various aspects of the embodiments of the present application can be reasonably combined and explained, and the explanation or explanation of the various terms appearing in the embodiments can be mutually referred to or explained in the various embodiments, which is not limited.

It should also be understood that, in the various embodiments of the present application, the size of the serial number of each process described above does not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of each process. The various numbers or serial numbers involved in the above processes are merely used for convenience of description and should not be construed as limiting the implementation processes of the embodiments of the present application in any way.

The method provided by the embodiment of the present application is described in detail above with reference to fig. 3 to 7. Hereinafter, the apparatus provided in the embodiment of the present application will be described in detail with reference to fig. 8 to 10.

Fig. 8 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 8, the communication device 800 may include a transceiver unit 810 and a processing unit 820.

The transceiving unit 810 may include a transmitting unit and/or a receiving unit. The transceiving unit 810 may be a transceiver (including a transmitter and/or a receiver), an input/output interface (including an input and/or output interface), a pin or a circuit, etc. The transceiver unit 810 may be configured to perform the steps of transmitting and/or receiving in the above-described method embodiments.

The processing unit 820 may be a processor (which may include one or more processors), a processing circuit with a processor function, etc., and may be used to perform other steps besides transmitting and receiving in the above-described method embodiments.

Optionally, the communication device may further include a storage unit, which may be a memory, an internal storage unit (e.g., a register, a cache, etc.), an external storage unit (e.g., a read-only memory, a random access memory, etc.), and the like. The storage unit is used for storing instructions, and the processing unit 820 executes the instructions stored in the storage unit to enable the communication device to execute the method.

In one design, the communications apparatus 800 may correspond to an access network device in any of the methods described above, and may perform operations performed by the access network device in the respective methods.

For example, the transceiver unit 810 is configured to receive a first data packet. The processing unit 820 is configured to determine, according to the first data packet, that the ue requests a first service of an application layer; determining the data volume of the first service requested by the user equipment; and determining transmission resources according to the data volume, wherein the transmission resources are used for transmitting the first service.

It should be understood that the transceiver unit 810 and the processing unit 820 may also perform other operations performed by the access network device in any of the above methods, and are not described in detail here.

In one design, the communications apparatus 800 may correspond to a user equipment in any of the methods described above, and may perform operations performed by the user equipment in the respective methods.

For example, the transceiving unit 810 is configured to request a first service; sending a first data packet, where the first data packet includes first indication information and/or fourth indication information, the first indication information is used to indicate a user equipment to request a first service of an application layer, the fourth indication information is used to indicate a first code rate, and the first code rate is used to determine a data volume of the first service.

It should be understood that the transceiver unit 810 and the processing unit 820 may also perform other operations performed by the user equipment in any of the above methods, and are not described in detail here.

In one design, the communications apparatus 800 may correspond to a UPF in any of the methods described above, and may perform operations performed by the UPF in the corresponding method.

For example, the transceiving unit 810 is configured to receive a second data packet from the user equipment. The processing unit 820 is configured to determine, according to the size of the second data packet, that the user equipment requests the first service of the application layer. The transceiving unit 810 is further configured to send a first data packet to an access network device, where the first data packet includes second indication information, and the second indication information is used to indicate that the user equipment requests the first service.

It should be understood that the transceiver unit 810 and the processing unit 820 may also perform other operations performed by the UPF in any one of the above methods, and are not described in detail here.

In one design, the communication device 800 may correspond to an application server in any of the methods described above, and may perform operations performed by the application server in the respective method.

For example, the processing unit 820 is configured to determine at least one of the following information: the code rate selecting method comprises identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selecting, wherein the identification information is used for indicating the code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment. The transceiving unit 810 is configured to transmit at least one of the following information: the code rate selection method comprises identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection, wherein the identification information is used for indicating a code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment.

It should be understood that the transceiver unit 810 and the processing unit 820 may also perform other operations performed by the application server in any of the above methods, and are not described in detail here.

In one design, the communications apparatus 800 may correspond to an SMF in any of the methods described above, and may perform operations performed by the SMF in the respective method.

For example, the transceiving unit 810 is configured to receive at least one of the following information from the application server: the code rate selection method comprises the following steps that identification information, network demand information corresponding to the identification information, data volume corresponding to the identification information, a first load threshold value, a second load threshold value, time information and information for assisting in code rate selection are obtained, the identification information is used for indicating the code rate, and the time information is used for indicating an estimated value of time for a first service to reach access network equipment; and for sending at least one of the following information to the access network device: the identification information, the network demand information corresponding to the identification information, the data size corresponding to the identification information, a first load threshold value, a second load threshold value, time information, third indication information, and the information for assisting in selecting a code rate, or the first load threshold value and/or the second load threshold value, and sixth indication information are sent to a user plane function network element UPF, or identification information and seventh indication information are sent to user equipment, the third indication information is used for indicating that the access network equipment determines whether the user equipment requests a first service of an application layer, the sixth indication information is used for indicating that the UPF determines whether the user equipment requests the first service of the application layer, and the seventh indication information is used for indicating that the code rate requested by the user equipment is reported.

It should be understood that the transceiver unit 810 and the processing unit 820 may also perform other operations performed by the SMF in any of the above methods, and are not described in detail here.

It should be understood that the above division of the units is only a functional division, and other division methods may be possible in actual implementation.

It should also be understood that the above-described processing unit may be implemented by hardware, by software, or by a combination of hardware and software.

Fig. 9 is a schematic structural diagram of a communication device provided in the present application. As shown in fig. 9, the communication apparatus 900 can implement the functions that can be implemented by any network element in any of the above method embodiments.

The communication device 900 may include a processor 910. The processor 910 may also be referred to as a processing unit and may implement certain control functions. The processor 910 may be used to control the communication device 900, execute software programs, and process data of the software programs.

In an alternative design, the processor 910 may also store instructions and/or data that can be executed by the processor 910 to cause the communication apparatus 900 to perform the methods described in the above method embodiments.

Optionally, the communication device 900 may include a memory 920, which may have instructions stored thereon, and the instructions may be executed on the processor, so that the communication device 900 performs the method described in the above method embodiment. Optionally, the memory may further store data therein. Optionally, instructions and/or data may also be stored in the processor. The processor and the memory may be provided separately or may be integrated together. For example, the correspondence described in the above method embodiments may be stored in a memory or in a processor.

Optionally, the communication device 900 may include a baseband circuit 930, mainly for performing baseband processing.

Optionally, the communication device 900 may include a radio frequency circuit 940, which is mainly used for transceiving radio frequency signals and converting the radio frequency signals into baseband signals, for example, for transmitting BAR frames in the above method embodiments. The rf circuit 940 may also be referred to as a transceiver unit, transceiver, transceiving circuit, or transceiver, etc.

Optionally, the communication device 900 may include an antenna 950, which is mainly used for transmitting and receiving signals.

Optionally, the communications device 900 may include a bus 960 for coupling various portions of the communications device 900, such as the processor 910, the memory 920, the baseband circuitry 930, the radio frequency circuitry 940, and the antenna 950 described above.

Fig. 10 is a schematic structural diagram of a communication device 1000 according to the present application. For ease of illustration, fig. 10 shows only the main components of the communication device 1000. The communication device 1000 may implement the functions of the user equipment in any of the above method embodiments.

As shown in fig. 10, the communication device 1000 includes a processor and a memory.

Optionally, the communication device 1000 comprises a control circuit, an antenna and an input-output device.

The processor is mainly configured to process the communication protocol and the communication data, control the entire communication apparatus 1000, execute a software program, and process data of the software program, for example, to support the communication apparatus 1000 to perform operations performed by the user equipment described in the above method embodiments. The memory is used primarily for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the communication device 1000 is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the communication device 1000, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that fig. 10 shows only one memory and processor for ease of illustration. In an actual communication device 1000, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, the baseband processor is mainly used for processing the communication protocol and the communication data, and the central processing unit is mainly used for controlling the whole communication device 1000, executing the software program, and processing the data of the software program. The processor in fig. 10 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that communication device 1000 may include multiple baseband processors to accommodate different network formats, that communication device 1000 may include multiple central processors to enhance its processing capabilities, and that various components of communication device 1000 may be connected by various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of the present application, the antenna and the control circuit with transceiving functions can be regarded as the transceiving unit 1010 of the communication device 1000, and the processor with processing function can be regarded as the processing unit 1020 of the communication device 1000. As shown in fig. 10, the communication apparatus 1000 includes a transceiver unit 1010 and a processing unit 1020. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Optionally, a device for implementing the receiving function in the transceiving unit 1010 may be regarded as a receiving unit, and a device for implementing the transmitting function in the transceiving unit 1010 may be regarded as a transmitting unit, that is, the transceiving unit 1010 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Micro Controller Unit (MCU), a Programmable Logic Device (PLD) or other integrated chip. It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, including: computer program code which, when run on a computer, causes the computer to perform the operations performed by any of the network elements (e.g. user equipment, access network equipment, core network equipment, etc.) of any of the method embodiments described above.

According to the method provided by the embodiment of the present application, a computer-readable medium is also provided, where the program code is stored, and when the program code is executed on a computer, the computer is caused to perform the operations performed by any network element (e.g., a user equipment, an access network device, a core network device, etc.) in the foregoing method embodiment.

According to the method provided by the embodiment of the present application, the present application further provides a communication system, which includes one or more network elements in any method embodiment.

The embodiment of the application also provides a communication device, which comprises a processor and an interface; the processor is configured to perform the method of any of the above method embodiments.

It should be understood that the communication device may be a chip. For example, the processing device may be a Field Programmable Gate Array (FPGA), a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a microcontroller (micro controller unit, MCU), a Programmable Logic Device (PLD) or other integrated chip. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The network device in the foregoing device embodiments completely corresponds to the terminal device and the network device or the terminal device in the method embodiments, and the corresponding module or unit executes the corresponding steps, for example, the communication unit (transceiver) executes the steps of receiving or transmitting in the method embodiments, and other steps besides transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The number of the processors may be one or more.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process or thread of execution and a component may be localized on one computer and distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, or across a network such as the internet with other systems by way of the signal).

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

It should be understood that, in the embodiment of the present application, the numbers "first" and "second" … are only used for distinguishing different objects, such as for distinguishing different network devices, and do not limit the scope of the embodiment of the present application, and the embodiment of the present application is not limited thereto.

It should also be understood that, in this application, "when …", "if" and "if" all refer to a network element that performs the corresponding process under certain objective circumstances, and are not time-critical, nor do they require certain deterministic actions to be performed by the network element, nor do they imply that other limitations exist.

It is also understood that, in the present application, "at least one" means one or more, "a plurality" means two or more.

It should also be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

It should also be understood that the term "and/or" herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Items appearing in this application as similar to "include one or more of the following: the meaning of a, B, and C "typically means that the item may be any of the following, unless otherwise specified: a; b; c; a and B; a and C; b and C; a, B and C; a and A; a, A and A; a, A and B; a, A and C, A, B and B; a, C and C; b and B, B, B and C, C and C; c, C and C, and other combinations of A, B and C. The above description is made by taking 3 elements of a, B and C as examples of optional items of the item, and when the expression "item" includes at least one of the following: a, B, … …, and X ", i.e., more elements in the expression, then the items to which the item may apply may also be obtained according to the aforementioned rules.

It is understood that, in the embodiments of the present application, a terminal device and/or a network device may perform some or all of the steps in the embodiments of the present application, and these steps or operations are merely examples, and the embodiments of the present application may also perform other operations or various modifications of the operations. Further, the various steps may be performed in a different order presented in the embodiments of the application, and not all operations in the embodiments of the application may be performed.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting traffic, comprising:

receiving a first data packet;

determining a first service of a user equipment request application layer according to the first data packet;

determining the data volume of the first service requested by the user equipment;

and determining transmission resources according to the data volume, wherein the transmission resources are used for transmitting the first service.

2. The method of claim 1, wherein the first data packet comprises first indication information, and wherein the first indication information is from the ue, and wherein the first indication information is used to indicate that the ue requests the first service.

3. The method of claim 2, wherein the first indication information:

controlling RRC message transmission through radio resources; or,

transmitting through a packet data convergence protocol PDCP layer of uplink data; or,

querying an ANBRQ message transmission through an access network bit rate; or,

the data is transmitted to the core network equipment through a Transmission Control Protocol (TCP) layer or an Internet Protocol (IP) layer of uplink data, and is transmitted by the core network equipment through an N2 message or a general packet radio service (GTP) layer of downlink data.

4. The method of claim 1, wherein the first data packet includes second indication information, and the second indication information is from a user plane function network element (UPF), and the second indication information is used for indicating that the user equipment requests the first service.

5. The method of claim 1, wherein the determining that the user equipment requests the first service of the application layer according to the first data packet comprises:

and determining that the user equipment requests the first service according to the size of the first data packet.

6. The method of claim 5, wherein determining that the user equipment requests the first service according to the size of the first data packet comprises:

determining that the user equipment requests the first service according to the condition that the size of the first data packet meets a preset condition,

wherein the preset conditions are as follows:

the size of the data packet is larger than a first load threshold value; or,

the size of the data packet is smaller than a second load threshold value; or,

the size of the data packet is larger than the first load threshold value and smaller than the second load threshold value.

7. The method of claim 6, further comprising:

receiving first information from an application server, wherein the first information comprises the first load threshold value and/or the second load threshold value and third indication information, and the third indication information is used for indicating that whether the user equipment requests the first service is determined by access network equipment.

8. The method according to any one of claims 1 to 7, further comprising:

and receiving second information from an application server, wherein the second information comprises identification information and data volume corresponding to the identification information, and the identification information is used for indicating code rate.

9. The method of claim 8, wherein the first packet further comprises fourth indication information, and wherein the fourth indication information is used for indicating a first code rate;

the determining the data volume of the first service requested by the user equipment includes:

and determining the data volume of the first service requested by the user equipment according to the first code rate and the second information.

10. The method of claim 8, wherein the second information further includes network requirement information corresponding to the identification information;

and determining the data volume of the first service requested by the user equipment according to the network condition and the second information.

11. The method according to claim 8 or 10, wherein the second information further comprises information for assisting in selecting a code rate.

12. The method according to any of claims 1 to 11, wherein said determining transmission resources according to said amount of data comprises:

and determining the transmission resource according to the data volume and time information, wherein the time information is used for indicating an estimated value of the arrival time of the first service.

13. A method for transmitting traffic, comprising:

receiving a second data packet from the user equipment;

determining a first service of an application layer requested by the user equipment according to the size of the second data packet;

and sending a first data packet to access network equipment, wherein the first data packet comprises second indication information, and the second indication information is used for indicating the user equipment to request the first service.

14. The method of claim 13, wherein the determining that the ue requests the first service of the application layer according to the size of the second packet comprises:

determining that the user equipment requests the first service according to the fact that the size of the second data packet meets a preset condition,

wherein the preset conditions are as follows:

the size of the data packet is larger than a first load threshold value; or,

the size of the data packet is smaller than a second load threshold value; or,

15. The method of claim 14, further comprising:

and when the first service is detected, sending fifth indication information to a session management function network element (SMF), wherein the fifth indication information is used for indicating that the user equipment is detected to access the first service.

16. The method according to claim 14 or 15, characterized in that the method further comprises:

receiving third information from a session management function network element SMF, where the third information includes the first load threshold value and/or the second load threshold value, and sixth indication information, and the sixth indication information is used to indicate that a user plane function network element UPF determines whether a user equipment requests the first service.

17. A method for transmitting media traffic, comprising:

requesting a first service;

sending a first data packet, where the first data packet includes first indication information and/or fourth indication information, the first indication information is used to indicate a user equipment to request a first service of an application layer, the fourth indication information is used to indicate a first code rate, and the first code rate is used to determine a data volume of the first service.

18. The method of claim 17, further comprising:

receiving seventh indication information from an application server, where the seventh indication information is used to indicate that the user equipment reports the first code rate.

19. The method of claim 18, further comprising:

receiving identification information from the application server, the identification information being used to indicate a code rate.

20. The method according to any one of claims 17 to 19, characterized in that the first indication information and/or the fourth indication information:

controlling RRC message transmission through radio resources; or the like, or a combination thereof,

querying an ANBRQ message transmission through an access network bit rate; or,

21. A communication apparatus, characterized in that it comprises means or units for performing the method according to any of claims 1 to 20.

22. A communications apparatus comprising a processor and a memory, the processor and the memory coupled, the memory for storing a computer program, the processor for executing the computer program stored in the memory to implement the method of any of claims 1 to 20.

23. A chip comprising a processor and a memory, the processor and the memory being coupled, the memory being configured to store a computer program, the processor being configured to execute the computer program stored in the memory to implement the method of any of claims 1 to 20.

24. A computer-readable storage medium, comprising a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 20.

25. A computer program product, characterized in that it comprises a computer program which, when executed, performs the method of any one of claims 1 to 20.