CN116939700A - Communication method and communication device - Google Patents
Communication method and communication device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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Abstract
The application provides a communication method and a communication device, wherein the method comprises the following steps: the access network device receives correlation information from a first network element, wherein the correlation information is used for indicating correlation between a first QoS flow and one or more second QoS flows in a first period; and the access network equipment transmits the data of the first QoS flow and the data of the one or more second QoS flows in the first time period according to the correlation information and the terminal equipment. The embodiment of the application can consider the correlation between QoS flows, so that the multi-mode service in the network can be better borne.
Description
Technical Field
The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus in the field of communications.
Background
In recent years, with the development of the fifth generation mobile communication technology (5th generation mobile networks,5G), multimedia services with strong real-time performance and large data capacity requirements, such as video transmission, cloud game, and extended reality (XR), are gradually penetrated into the fifth generation communication system. Wherein XR includes Virtual Reality (VR) and augmented reality (augmented reality, AR).
The multi-mode service is taken as a new service, the haptic experience dimension is increased on the basis of XR, the multi-aspect remote perception of vision, hearing, touch sense, kinesthesia and the like can be realized, and the multi-mode service has great development space in the related fields of industrial automation, medical care, remote education and the like, provides an omnibearing interactive experience for users, and has great application value. The quality of service (quality of service, qoS) requirements of each data flow in the multi-mode service are different, and the data flows with different QoS requirements are generally adopted to transmit different signals, so as to ensure that the QoS requirements of each signal can be met. However, the QoS mechanisms in existing 5G networks do not carry multimodal traffic well.
Disclosure of Invention
The embodiment of the application provides a communication method and a communication device, which can better bear multi-mode service.
In a first aspect, a method of communication is provided, which may be performed by an access network device, by a component of the access network device (e.g. a processor, a chip or a system-on-chip), or by a logic module or software that is capable of implementing all or part of the functionality of the access network device. The method comprises the following steps: receiving first correlation information from a first network element, the first correlation information being for indicating a correlation between a first quality of service, qoS, flow and one or more second QoS flows over a first period of time; and transmitting the data of the first QoS flow and the data of one or more second QoS flows in the first period according to the first correlation information and the terminal equipment.
Wherein the transmitting of the data of the first QoS flow and the data of the one or more second QoS flows comprises:
transmitting data carried by one or more second QoS flows, and not transmitting data carried by the first QoS flow; or both the first QoS flow and the data carried by the one or more second QoS flows.
The access network device can learn the correlation of the QoS flow according to the first correlation information, and schedule and configure and optimize the QoS flow when transmitting data with the terminal device, so that the multi-mode service can be better carried.
The first QoS flow and the one or more second QoS flows may belong to the same terminal device or may belong to different terminal devices, which is not limited in the present application.
With reference to the first aspect, in certain implementation manners of the first aspect, the first correlation information is specifically used to indicate that the first QoS flow and the one or more second QoS flows are correlated in the first period.
The first QoS flow is associated with the one or more second QoS flows and then some or all of the data representing the first QoS flow may be recovered based on the data of the one or more second QoS flows.
Illustratively, a bit is used to indicate whether the first QoS flow and the one or more second QoS flows are related, and if the value of the bit is 0, it indicates that the first QoS flow and the one or more second QoS flows are not related; if a bit has a value of 1, it indicates that the first QoS flow is associated with one or more second QoS flows. Alternatively, a value of 0 for the one bit indicates that the first QoS flow is associated with the one or more second QoS flows, and a value of 1 for the one bit indicates that the first QoS flow is not associated with the one or more second QoS flows. The specific meaning of the one bit value may be determined according to the setting of the system, which is not limited by the present application.
The first correlation information indicates that the first QoS flow is correlated with the one or more second QoS flows. No indication may be used when there is no correlation between QoS flows, which may save the signaling overhead of the first correlation information.
With reference to the first aspect, in certain implementation manners of the first aspect, the first correlation information is specifically used to indicate a probability that the data of the first QoS flow can be recovered based on the data of the one or more second QoS flows.
The first correlation information may specifically indicate a probability or proportion by which the first QoS flow can be restored based on the second QoS flow, so that the access network device may more accurately schedule and configure the QoS flows based on this specific probability or proportion.
Illustratively, if the first case is that the probability that the first QoS flow can be recovered based on the second QoS flow is 0.5 and the second case is that the probability that the first QoS flow can be recovered based on the second QoS flow is 1, then the access network device may discard a portion of the packets of the first QoS flow in the first case and discard all of the packets of the first QoS flow in the second case when congestion occurs in the network.
With reference to the first aspect, in certain implementations of the first aspect, the first correlation information may further be used to indicate a degree of correlation of the first QoS flow and the one or more second QoS flows.
Illustratively, if the degree of correlation is 50% in the first case and the degree of correlation is 100% in the second case, the access network device may discard a portion of the packets of the first QoS flow in the first case and discard all of the packets of the first QoS flow in the second case when congestion occurs in the network.
The first correlation information may specifically indicate the degree to which the first QoS flow is correlated with one or more second QoS flows, which is beneficial for the access network device to perform more accurate scheduling and configuration optimization operations on the QoS flows.
With reference to the first aspect, in certain implementation manners of the first aspect, the first correlation information includes indication information of the first period.
The first correlation information may indicate a specific section of the first period or a length of the first period within which the correlation of the QoS flow is valid.
By indicating the time periods in which a first QoS flow is associated with one or more second QoS flows, critical data is prevented from being discarded during the uncorrelated time periods.
With reference to the first aspect, in certain implementation manners of the first aspect, when the first network element is a session management network element, the method further includes: qoS flow configuration information is received from the session management network element, the QoS flow configuration information including the first correlation information.
The first correlation information is indicated to the access network device through the control plane signaling, and the updating frequency is low and the signaling overhead is low.
With reference to the first aspect, in certain implementation manners of the first aspect, when the first network element is a user plane function network element, the method further includes: the first correlation information from the user plane function network element is received through an extension header of a general packet radio system tunnel user protocol GTP-U.
The first correlation information is transmitted to the access network device through the application layer data, so that the method is quick and effective, and the change of the correlation information of the application layer QoS flow can be quickly adapted.
With reference to the first aspect, in certain implementation manners of the first aspect, the transmitting of the data of the first QoS flow and the data of the one or more second QoS flows with the terminal device in the first period according to the first correlation information includes at least one of: discarding part or all of the data of the first QoS flow in the first period according to the first correlation information; or, reducing the scheduling priority of the first QoS flow in the first period according to the first correlation information; or, mapping the first QoS flow and the one or more second QoS flows onto different data radio bearers according to the first correlation information.
For example, when the network channel is congested, the first QoS flow is related to the second QoS flow, or the first QoS flow may be recovered based on the second QoS flow, then the RAN actively discards some or all of the data packets in the first QoS flow, or the RAN stops data transmission of the first QoS flow, so as to reduce the pressure of the network air interface.
In an exemplary embodiment, when the network channel is congested, the first QoS flow is related to the second QoS flow, or the first QoS flow may be recovered based on the second QoS flow, so that the RAN may reduce the scheduling priority of the first QoS flow, and preferentially perform data transmission of the QoS flow with high scheduling priority in the uplink and downlink data transmission process, so that data transmission of other QoS flows with high priority may be preferentially guaranteed, and service quality of the service may be improved.
Illustratively, when the network channel is congested, the first QoS flow is related to the second QoS flow, or the first QoS flow may be recovered based on the second QoS flow, and the RAN maps the related first QoS flow and second QoS flow on different data radio bearers (data radio bearer, DRB) respectively, so that robustness of data transmission of the first QoS flow and data transmission of the second QoS flow may be improved.
In a second aspect, a method of communication is provided, which may be performed by a first network element, or by a component of the first network element (e.g. a processor, a chip or a system-on-chip), or by a logic module or software that is capable of implementing all or part of the functionality of the first network element. The method comprises the following steps: first correlation information is sent to the access network device, the first correlation information being used to indicate a correlation between a first quality of service, qoS, flow and one or more second QoS flows over a first period of time.
The first network element transmits the first correlation information to the access network equipment so that the access network equipment can know the correlation of the QoS flow according to the first correlation information, and the access network equipment performs scheduling and configuration optimization on the QoS flow when transmitting data with the terminal equipment, thereby better bearing the multi-mode service.
The first QoS flow and the one or more second QoS flows may belong to the same terminal device or may belong to different terminal devices, which is not limited in the present application.
With reference to the second aspect, in certain implementations of the second aspect, the first correlation information is specifically configured to indicate that the first QoS flow and the one or more second QoS flows are correlated during the first period.
The first QoS flow is associated with the one or more second QoS flows and then some or all of the data representing the first QoS flow may be recovered based on the data of the one or more second QoS flows.
Illustratively, a bit is used to indicate whether the first QoS flow and the one or more second QoS flows are related, and if the value of the bit is 0, it indicates that the first QoS flow and the one or more second QoS flows are not related; if a bit has a value of 1, it indicates that the first QoS flow is associated with one or more second QoS flows. Alternatively, a value of 0 for the one bit indicates that the first QoS flow is associated with the one or more second QoS flows, and a value of 1 for the one bit indicates that the first QoS flow is not associated with the one or more second QoS flows. The specific meaning of the one bit value may be determined according to the setting of the system, which is not limited by the present application.
The first correlation information indicates that the first QoS flow is related to the one or more second QoS flows, and may not be indicated when there is no correlation between QoS flows, which may save signaling overhead of the first correlation information.
With reference to the second aspect, in certain implementations of the second aspect, the first correlation information is specifically configured to indicate a probability that the data of the first QoS flow can be recovered based on the data of the one or more second QoS flows.
The first correlation information may specifically indicate a probability or proportion by which the first QoS flow can be restored based on the second QoS flow, so that the access network device may more accurately schedule and configure the QoS flows based on this specific probability or proportion.
Illustratively, if the first case is that the probability that the first QoS flow can be recovered based on the second QoS flow is 0.5 and the second case is that the probability that the first QoS flow can be recovered based on the second QoS flow is 1, then the access network device may discard a portion of the packets of the first QoS flow in the first case and discard all of the packets of the first QoS flow in the second case when congestion occurs in the network.
With reference to the first aspect, in certain implementations of the first aspect, the first correlation information may further be used to indicate a degree of correlation of the first QoS flow and the one or more second QoS flows.
Illustratively, if the degree of correlation is 50% in the first case and the degree of correlation is 100% in the second case, the access network device may discard a portion of the packets of the first QoS flow in the first case and discard all of the packets of the first QoS flow in the second case when congestion occurs in the network.
The first correlation information may specifically indicate the degree to which the first QoS flow is correlated with one or more second QoS flows, which is beneficial for the access network device to perform more accurate scheduling and configuration optimization operations on the QoS flows.
With reference to the second aspect, in some implementations of the second aspect, the first correlation information includes indication information of the first period.
The first correlation information may indicate a specific section of the first period or a length of the first period within which the correlation of the QoS flow is valid.
By indicating the time periods in which a first QoS flow is associated with one or more second QoS flows, critical data is prevented from being discarded during the uncorrelated time periods.
With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and sending QoS flow configuration information to the access network equipment, wherein the QoS flow configuration information comprises the first correlation information.
The first correlation information is indicated to the access network device through the control plane signaling, and the updating frequency is low and the signaling overhead is low.
With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and transmitting the first correlation information to the access network equipment through an extension head of a general packet radio system tunnel user protocol GTP-U.
The first correlation information is transmitted to the access network device through the application layer data, so that the method is quick and effective, and the change of the correlation information of the application layer QoS flow can be quickly adapted.
With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and sending QoS flow rule information to the terminal equipment, wherein the QoS flow rule information comprises the first correlation information.
And sending the first correlation information to the terminal equipment, wherein the terminal equipment can actively discard part or all of data packets in the QoS flow with higher correlation based on the first correlation information in the uplink data transmission stage so as to relieve uplink network congestion.
In a third aspect, a method of communication is provided, which may be performed by a terminal device, by a component of a terminal device (e.g. a processor, a chip or a system-on-chip), or by a logic module or software capable of implementing all or part of the functions of the terminal device. The method comprises the following steps: receiving first correlation information from a first network element, the first correlation information being for indicating a correlation between a first quality of service, qoS, flow and one or more second QoS flows over a first period of time; and transmitting the data of the first QoS flow and the data of one or more second QoS flows in the first period according to the first correlation information and the access network equipment.
Wherein the transmitting of the data of the first QoS flow and the data of the one or more second QoS flows comprises: transmitting data carried by one or more second QoS flows, and not transmitting data carried by the first QoS flow; or both the first QoS flow and the data carried by the one or more second QoS flows.
The terminal equipment can know the correlation of the QoS flow according to the first correlation information, and actively discard part or all of data packets in the QoS flow with higher correlation when the QoS flow is transmitted with the access network equipment so as to relieve the congestion of the uplink network.
The first QoS flow and the one or more second QoS flows may belong to the same terminal device or may belong to different terminal devices, which is not limited in the present application.
With reference to the third aspect, in some implementations of the third aspect, the first correlation information is specifically configured to indicate that the first QoS flow and the one or more second QoS flows are correlated during the first period.
The first QoS flow is associated with the one or more second QoS flows and then some or all of the data representing the first QoS flow may be recovered based on the data of the one or more second QoS flows.
Illustratively, a bit is used to indicate whether the first QoS flow and the one or more second QoS flows are related, and if the value of the bit is 0, it indicates that the first QoS flow and the one or more second QoS flows are not related; if a bit has a value of 1, it indicates that the first QoS flow is associated with one or more second QoS flows. Alternatively, a value of 0 for the one bit indicates that the first QoS flow is associated with the one or more second QoS flows, and a value of 1 for the one bit indicates that the first QoS flow is not associated with the one or more second QoS flows. The specific meaning of the one bit value may be determined according to the setting of the system, which is not limited by the present application. The first correlation information indicates that the first QoS flow is related to the one or more second QoS flows, and may not be indicated when there is no correlation between QoS flows, which may save signaling overhead of the first correlation information.
With reference to the third aspect, in some implementations of the third aspect, the first correlation information is specifically configured to indicate a probability that the data of the first QoS flow can be recovered based on the data of the one or more second QoS flows.
The first correlation information may specifically indicate a probability or a proportion of the first QoS flow being able to be restored based on the second QoS flow, so that the terminal device may discard the data packet based on this specific probability or proportion, preventing discarding the data packet in the QoS flow with low correlation.
Illustratively, if the first case is that the probability that the first QoS flow can be recovered based on the second QoS flow is 0.5 and the second case is that the probability that the first QoS flow can be recovered based on the second QoS flow is 1, then when congestion occurs in the network, the terminal device may discard a part of the packets of the first QoS flow in the first case and discard all of the packets of the first QoS flow in the second case.
With reference to the first aspect, in certain implementations of the first aspect, the first correlation information may further be used to indicate a degree of correlation of the first QoS flow and the one or more second QoS flows.
Illustratively, if the degree of correlation is 50% in the first case and the degree of correlation is 100% in the second case, the access network device may discard a portion of the packets of the first QoS flow in the first case and discard all of the packets of the first QoS flow in the second case when congestion occurs in the network.
The first correlation information may specifically indicate the degree to which the first QoS flow is correlated with one or more second QoS flows, which is beneficial for the access network device to perform more accurate scheduling and configuration optimization operations on the QoS flows.
With reference to the third aspect, in some implementations of the third aspect, the first correlation information includes indication information of the first period.
The first correlation information may indicate a specific section of the first period or a length of the first period within which the correlation of the QoS flow is valid.
By indicating the time periods in which a first QoS flow is associated with one or more second QoS flows, critical data is prevented from being discarded during the uncorrelated time periods.
With reference to the third aspect, in some implementations of the third aspect, when the first network element is a session management network element, the method further includes: and receiving QoS flow rule information sent by the session management network element, wherein the QoS flow rule information comprises first correlation information.
The first correlation information is indicated to the terminal equipment through the control plane signaling, and the updating frequency is low and the signaling overhead is small in this way.
With reference to the third aspect, in certain implementations of the third aspect, the method further includes: and receiving scheduling information from the access network device, wherein the scheduling information is used for scheduling a third QoS flow of uplink data transmission of the terminal device, and the third QoS flow belongs to the first QoS flow and the one or more second QoS flows.
The terminal equipment can know which QoS flows capable of transmitting data are scheduled and configured by the access network equipment according to the first correlation information through the scheduling information sent by the access network equipment, so that the UE can bear uplink data through the QoS flows scheduled and configured by the access network equipment.
In a fourth aspect, a communication apparatus is provided, where the apparatus may be an access network device, a component (such as a processor, a chip, or a chip system) of the access network device, or a logic module or software capable of implementing all or part of the functions of the access network device. The apparatus has the functionality to implement the first aspect described above, as well as various possible implementations. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
In one possible design, the apparatus includes: the interface unit may be at least one of a transceiver, a receiver, a transmitter, and a processing unit, and may include a radio frequency circuit or an antenna. The processing unit may be a processor. Optionally, the apparatus further comprises a storage unit, which may be a memory, for example. When included, the storage unit is used to store programs or instructions. The processing unit is connected to the storage unit, and the processing unit may execute a program, an instruction, or an instruction derived from another storage unit, so that the apparatus performs the communication method of the first aspect and various possible implementation manners. In this design, the apparatus may be an access network device.
In another possible design, when the device is a chip, the chip includes: an interface unit, which may be, for example, an input/output interface, pins or circuitry on the chip, and a processing unit. The processing unit may be, for example, a processor. The processing unit may execute instructions to cause a chip within the access network device to perform the above-described first aspect, as well as any possible implementation of the communication method. Alternatively, the processing unit may execute instructions in a memory unit, which may be a memory module within the chip, such as a register, cache, etc. The memory unit may also be a static memory device, random access memory (random access memory, RAM) or the like, located within the communication device, but outside the chip, such as read-only memory (ROM) or other type of static memory device that may store static information and instructions.
The processor referred to in any of the foregoing may be a general purpose Central Processing Unit (CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the execution of the programs in the communication methods of the foregoing aspects.
In a fifth aspect, a communications apparatus is provided that can be a first network element, a component (e.g., a processor, a chip, or a system-on-a-chip) of the first network element, or a logic module or software that can implement all or part of the functionality of the first network element. The apparatus has the functionality to implement the second aspect described above, as well as various possible implementations. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
In one possible design, the apparatus includes: an interface unit. Optionally, the apparatus further comprises a processing unit. The interface unit may be, for example, at least one of a transceiver, a receiver, a transmitter, and may include a radio frequency circuit or an antenna. The processing unit may be a processor.
Optionally, the apparatus further comprises a storage unit, which may be a memory, for example. When included, the storage unit is used to store programs or instructions. The processing unit is connected to the storage unit, and the processing unit may execute a program, an instruction, or an instruction derived from another storage unit, so as to cause the apparatus to perform the method of the second aspect, or any one of them.
In another possible design, when the device is a chip, the chip includes: the interface unit, optionally, the chip further comprises a processing unit. The interface unit may be, for example, an input/output interface, pins or circuitry on the chip, etc. The processing unit may be, for example, a processor. The processing module may execute programs or instructions to cause a chip within the first network element to perform the second aspect described above, as well as any possible implementation of the communication method.
Alternatively, the processing unit may execute instructions in a memory unit, which may be a memory module within the chip, such as a register, cache, etc. The memory unit may also be a static memory device, random access memory (random access memory, RAM) or the like, located within the communication device, but outside the chip, such as read-only memory (ROM) or other type of static memory device that may store static information and instructions.
The processor referred to in any of the foregoing may be a general purpose Central Processing Unit (CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the execution of the programs in the communication methods of the foregoing aspects.
In a sixth aspect, a communication apparatus is provided, where the apparatus may be a terminal device, a component of the terminal device (such as a processor, a chip, or a chip system), or a logic module or software capable of implementing all or part of the functions of the terminal device. The apparatus has the functionality to implement the third aspect described above, as well as various possible implementations. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
In one possible design, the apparatus includes: an interface unit. Optionally, the apparatus further comprises a processing unit. The interface unit may be, for example, at least one of a transceiver, a receiver, a transmitter, and may include a radio frequency circuit or an antenna. The processing unit may be a processor.
Optionally, the apparatus further comprises a storage unit, which may be a memory, for example. When included, the storage unit is used to store programs or instructions. The processing unit is connected to the storage unit, and the processing unit may execute a program, an instruction, or an instruction derived from another storage unit, so as to cause the apparatus to execute the method of the third aspect, or any one of them.
In another possible design, when the device is a chip, the chip includes: the interface unit, optionally, the chip further comprises a processing unit. The interface unit may be, for example, an input/output interface, pins or circuitry on the chip, etc. The processing unit may be, for example, a processor. The processing module may execute a program or instructions to cause a chip within the terminal device to perform the third aspect described above, as well as any possible implementation of the communication method.
Alternatively, the processing unit may execute instructions in a memory unit, which may be a memory module within the chip, such as a register, cache, etc. The memory unit may also be a static memory device, random access memory (random access memory, RAM) or the like, located within the communication device, but outside the chip, such as read-only memory (ROM) or other type of static memory device that may store static information and instructions.
The processor referred to in any of the foregoing may be a general purpose Central Processing Unit (CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the execution of the programs in the communication methods of the foregoing aspects.
A seventh aspect provides a computer storage medium having stored therein program code for instructing the execution of the method of the first aspect, the second aspect, the third aspect and any possible implementation manner of the first aspect, the second aspect, the third aspect.
In an eighth aspect, there is provided a computer program product comprising computer instructions or computer code which, when run on a computer, causes the computer to perform the method of the first, second, third aspects and any possible implementation of the first, second, third aspects described above.
A ninth aspect provides a communication system comprising means for carrying out the methods and the various possible designs of the first aspect, means for carrying out the methods and the various possible designs of the second aspect, and means for carrying out the methods and the various possible designs of the third aspect. The apparatus having the functions of implementing the methods and the possible designs of the first aspect may be an access network device, the apparatus having the functions of implementing the methods and the possible designs of the second aspect may be a first network element, and the apparatus having the functions of implementing the methods and the possible designs of the third aspect may be a terminal device.
In particular, the advantages of the other aspects may be referred to the advantages described in the first aspect, the second aspect and the third aspect.
Based on the technical scheme, the access network equipment can know the correlation of the QoS flow according to the first correlation information, and schedule and configure and optimize the QoS flow when transmitting data with the terminal equipment, so that the multi-mode service can be better borne.
Drawings
Fig. 1 is an example of a communication system architecture suitable for use with embodiments of the present application.
Fig. 2 is an application scenario diagram suitable for use in an embodiment of the present application.
Fig. 3 is a schematic diagram of a relationship between RBs and QoS flows in a PDU session according to the present application.
Fig. 4 is a schematic diagram of correlation information provided in the present application.
Fig. 5 is a schematic flow chart of a method for configuring and scheduling QoS flows provided by the present application.
Fig. 6 is a schematic flow chart of a method for acquiring correlation information of QoS flows through control plane signaling.
Fig. 7 is a schematic flow chart of another method for acquiring correlation information of QoS flows through control plane signaling provided by the present application.
Fig. 8 is a schematic flow chart of a method for acquiring correlation information of QoS flows through a data plane according to the present application.
Fig. 9 shows a protocol stack diagram of the encapsulation of the correlation information of the QoS flow between the UDP layer and the RTP layer.
Fig. 10 shows a schematic block diagram of an apparatus 100 for transmitting correlation information according to an embodiment of the present application.
Fig. 11 shows a schematic block diagram of an apparatus 200 for receiving correlation information according to an embodiment of the application.
Detailed Description
The technical scheme of the 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, such as: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA) systems, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or New Radio (NR), and future communication systems.
To address the challenges of wireless broadband technology, maintaining the leading advantages of 3GPP networks, the 3GPP standards group has formulated a next generation mobile communication network architecture (next generation system), referred to as a 5G network architecture. The architecture supports not only 3GPP standard group-defined wireless technologies (e.g., LTE, etc.) access to the 5G core network (5G core network,5GC), but also non-3GPP access technologies access 5GC through non-3GPP interworking functions (non-3GPP interworking function,N3IWF), trusted non-3GPP gateway functions (trusted non-3GPP gateway function,TNGF), trusted WLAN interworking functions (trusted WLAN interworking function, TWIF), or next generation access gateway (next generation packet data gateway, NG-PDG). Wherein the core network functions are divided into user plane network element functions (user plane function, UPF) and control plane network element functions (control plane function, CPF). UPF is mainly responsible for packet data packet forwarding, quality of service (quality of service, qoS) control, billing information statistics, etc. The CPF is mainly responsible for user registration authentication, mobility management, and issuing packet forwarding policies, qoS control policies, etc. to the UPF, and can be further subdivided into access and mobility management functions (access and mobility management function, AMF) and session management functions (session management function, SMF).
The core network device may for example comprise a mobility management entity (mobility management entity, MME), a broadcast multicast service center (broadcast multicast service center, BMSC) or the like, or may also comprise corresponding functional entities in the 5G system, such as a core network Control Plane (CP) or User Plane (UP) network function or the like, for example: SMF, AMF, etc. The core network control plane can also be understood as a core network control plane function (control plane function, CPF) entity.
The terms involved in the present application are described below:
1. QoS: the network can utilize various basic technologies to provide better service capability for specified network communication, is a security mechanism of the network, and is a technology for solving the problems of network delay, blocking and the like.
2. Guaranteed bit rate (guranteed bit rate, GBR): it is meant that the bit rate required by the Radio Bearer (RB) is allocated "permanently" by the network for traffic with high real-time requirements, and the corresponding bit rate can be maintained even in case of network resources being strained. The Maximum Bit Rate (MBR) parameter defines the upper rate limit that the GBR bearer can reach under conditions of adequate resources. The value of MBR is greater than or equal to the value of GBR.
Conversely, non-guaranteed bit rate (Non-guranteed bit rate, non-GBR) refers to the fact that traffic (or bearers) need to withstand the reduced rate requirements for traffic with low real-time requirements when the network is congested, and can be established for a long period of time because Non-GBR bearers do not occupy fixed network resources. Whereas GBR bearers are typically established when needed.
3. Allocation and retention priority (allocation and retention priority, ARP): priority of data flows indicating different QoS requirements over radio access network and core network interfaces. In case of network congestion, the level of the ARP of the data flows with different QoS requirements of the terminal device will determine whether the data flows with different QoS requirements of the terminal device replace the existing data flows with different QoS requirements with lower ARP priority, or whether the data flows with different QoS requirements of the terminal device are replaced by the data flows with different QoS requirements with higher ARP priority.
Hereinafter, for convenience, we refer to data flows of different QoS requirements as QoS flows.
4. Maximum packet loss rate (maximum packet loss rate, MPLR): meaning the maximum packet loss rate that a QoS flow can tolerate, MPLR will typically be provided in a QoS flow for GBR.
5. Reflective QoS attribute (reflectionQoSattributes, RQA): some traffic indicating a certain QoS flow may be affected by reflected QoS. Under the condition that no core network signaling provides QoS rules for the terminal equipment, if the core network uses the reflection QoS function for downlink data for the terminal equipment supporting the reflection QoS function, the terminal equipment derives the QoS rules of uplink data from the received downlink data packet.
6. Indication control (notification control): for the QoS flow of the GBR, the core network informs the core network by indicating whether the control parameter controls the wireless access network to report a message when the guaranteed flow bit rate (guranteed flow bit rate, GFBR) of the QoS flow of the GBR cannot be met.
Fig. 1 is an example of a communication system architecture suitable for use with embodiments of the present application. Wherein the functions of the user equipment and the network entities are as follows.
Terminal equipment: may be referred to as a terminal (terminal), a terminal equipment unit (terminal station), a terminal equipment agent, a terminal equipment device, an access terminal, a terminal in V2X communication, a subscriber unit, a User Equipment (UE), a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment device.
The user equipment in the embodiments of the present application may also be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a holographic projector, a video player, a Virtual Reality (VR) terminal, an augmented reality (augmented reality, AR) terminal, a wireless terminal in an industrial control (industrial control), a haptic terminal device, an in-vehicle terminal device, a wireless terminal in a self driving (self driving), a wireless terminal in a remote medical (remote medical), a wireless terminal in a smart grid (smart grid), a wireless terminal in a transportation security (transportation safety), a wireless terminal in a transportation security, a wireless terminal in a smart city (smart city), a wireless terminal in a smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with a wireless communication function, a computing device or a wireless terminal connected to a modem or an evolution modem, a wireless terminal in a future-system (wlan), a future-system (wlan) 5, or other wearable devices, etc.
The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wearing and developing wearable devices by using a wearable technology, such as head-display XR glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on certain kinds of application functions, and need to be used in cooperation with other devices such as smart phones, for example, various kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
Radio access network (radio access network, RAN): the network composed of a plurality of 5G-RAN nodes realizes the functions of wireless physical layer, resource scheduling, wireless resource management, wireless access control and mobility management. The 5G-RAN is connected with the UPF through a user interface N3 and is used for transmitting data of the terminal equipment; the 5G-RAN establishes control plane signaling connection through the control plane interface N2 and the AMF and is used for realizing the functions of wireless access bearing control and the like. The RAN may be any device with wireless transceiving functions, including, but not limited to, a 5G base station (gnb), an evolved base station (evolutionalnode base, eNB), a wireless access point (wireless access point, wiFi AP), a worldwide interoperability for microwave access (world interoperability for microwave access base station, wiMAX BS), a transmission reception point (transmission receiving point, TRP), a wireless relay node, a wireless backhaul node, and so on.
The access network device in the embodiment of the present application may also be a device for communicating with a terminal device, where the access network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system of mobile communication, GSM) system or code division multiple access (code division multiple access, CDMA), a base station (nodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved base station (evolutional node base, eNB) in an LTE system, a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle device, a wearable device, an access network device in a future 5G network, or an access network device in a future evolved PLMN network, etc., and the embodiment of the present application is not limited.
In NR, the function of a base station is divided into two parts, called Centralized Unit (CU) -Distributed Unit (DU) separation. From the perspective of the protocol stack, CU includes RRC layer and PDCP layer of the LTE base station, and DU includes radio link control (radio link control, RLC) layer, medium access control (media access control, MAC) layer and Physical (PHY) layer of the LTE base station. In a common 5G base station deployment, CU and DU may be physically connected by optical fiber, and there is logically a specially defined F1 interface for communication between CU and DU. From a functional point of view, the CU is mainly responsible for radio resource control and configuration, cross-cell mobility management, bearer management, etc. The DU is mainly responsible for scheduling, physical signal generation and transmission.
The base station may be a macro base station, a micro base station, a pico base station, a small station, a relay station, a balloon station, or the like.
Access and mobility management functions (access and mobility management function, AMF): the method is mainly responsible for the functions of authentication of terminal equipment, mobility management of the terminal equipment, network slice selection, SMF selection and the like; in addition, it is responsible for passing user policies between the terminal device and the policy control function (policy control function, PCF).
SMF: control plane functions mainly responsible for terminal equipment session management, including selection and control of user plane functions (user plane function, UPF), internet protocol (internet protocol, IP) address assignment, qoS management of sessions, acquisition of policies and charging control (policy and charging control, PCC) policies (from PCF), etc.
UPF: as an anchor point for a protocol data unit (protocol data unit, PDU) session connection, it is responsible for data packet filtering, data transmission/forwarding, rate control, generation of charging information, etc. for terminal devices, providing a connection to a Data Network (DN).
DN: refers to a particular data service network to which the terminal device has access. The DN is responsible for providing operator services, internet access, or third party services. The DN includes a server that can implement video source encoding, rendering, etc. Typical DNs include internet networks, IP Multimedia Services (IMS) networks, and the like. The DN is identified in the 5G network by a data network name (data network name, DNN).
Unified data management (unified data management, UDM): the management of subscription information is mainly used for managing user data, such as subscription information, and comprises the steps of acquiring subscription information from a unified data storage library (unified data repository, UDR) and providing the subscription information to other network elements (such as AMF); generating authentication credentials of a third generation partnership project (the third generation partnership project,3 GPP) for the terminal device; registering and maintaining a network element currently serving the terminal device, for example, an AMF currently serving the terminal device (i.e., a serving AMF); when subscription data is modified, the corresponding network element is informed.
Network capability open function (network exposure function, NEF): exposing traffic and capabilities of the 3GPP network functions to the application functions (application function, AF) while also allowing the AF to provide information to the 3GPP network functions.
AF: interact with the core network elements to provide some services, e.g. interact with the PCF to perform traffic policy control, interact with the NEF to obtain some network capability information or provide application information to the network, and provide some data network access point information to the PCF to generate routing information for the corresponding data traffic.
An authentication server function (authentication server function, AUSF) for performing security authentication of the terminal device when the terminal device accesses the network.
A network slice selection function (network slice selection function, NSSF) selects a set of slice instances for the terminal device, determines an AMF set, allowed NSSAI for the terminal device.
PCF: providing configuration policy information for the terminal equipment, and providing policy information for controlling the terminal equipment for control plane network elements (such as AMF, SMF) of the network; generating a terminal equipment access policy and a QoS flow control policy.
The terminal equipment in the embodiment of the application is connected with the RAN equipment in a wireless mode, and the RAN network element is connected with the 5GC equipment in a wireless or wired mode. The 5GC device and the RAN network element may be separate physical devices, or may integrate the functions of the 5GC device and the logic functions of the RAN network element on the same physical device, or may integrate the functions of part of the 5GC device and part of the RAN network element on one physical device. The terminal device may be fixed in position or may be movable.
The 5GC equipment mainly comprises the NEF network element, the PCF network element, the AF network element, the AMF network element, the SMF network element, the UPF network element and the like.
The "network element" may also be referred to as an entity, a device, an apparatus, a module, or the like, and the present application is not particularly limited. Also, in the present application, for convenience of understanding and explanation, a description of "network element" is omitted in part of the description, for example, a NEF network element is abbreviated as NEF, in which case the "NEF" is understood as a NEF network element or a NEF entity, and hereinafter, description of the same or similar cases is omitted.
It should be noted that the name of each network element included in fig. 1 is only one name, and the name does not limit the function of the network element itself. In 5G networks and other networks in the future, the above-mentioned network elements may also be named, which is not particularly limited in the embodiment of the present application. For example, in a 6G network, some or all of the above network elements may use the terminology in 5G, and other names may also be used, which is generally described herein and not described in detail herein.
It should be noted that the network elements in fig. 1 do not have to exist at the same time, and it may be determined which network elements are needed according to the requirement. The connection relationship between the network elements in fig. 1 is not uniquely determined, and may be adjusted according to requirements.
It will be appreciated that the network elements or functions described above may be either network elements in a hardware device, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).
Fig. 2 is a schematic diagram of an application scenario suitable for the present application. As shown in fig. 2, the embodiment of the present application can be applied to a multi-modal service scenario. The haptic user of the main domain in the multi-mode business scenario interfaces with the manual system, and the controlled domain at the other end is a remote control robot or a remote operator. The main domain receives the information streams of images, audio, video and the like from the controlled domain, and the main domain and the controlled domain interact various commands and feedback signals through communication links in a network architecture to form a global control loop.
In a multi-mode service application scenario, multiple data streams are required to respectively transmit different data types such as images, touch, instructions, feedback data and the like. There is a spatial, temporal correlation between the individual information streams.
Illustratively, when a human body touches objects with different textures and different materials, the touch feeling is also different. The haptic signal has a certain association with the object surface image, which is also a specific form of correlation. With this correlation between the different signal streams, signal reconstruction can be aided.
For example, when the haptic signal is transmitted through the network, part of the data packet is lost due to channel fluctuation or network congestion, and the damaged signal can be recovered and reconstructed by using the correlation information between the multi-mode service signals. And the tactile signal is recovered by utilizing the image signal, so that the user experience of the multi-mode service is ensured.
Besides the application scenario structured between the two terminal devices, the application scenario of the present application may also be constructed by an application server and the terminal device. The construction of the application scene of the application is not limited to the two scenes, and the application scene applicable to the technical scheme of the application is within the protection scope of the application.
When there is a multi-mode service requirement in the network system, the SMF establishes a corresponding PDU session. In general, a multi-mode service corresponds to establishing a PDU session. One PDU session may correspond to a plurality of Radio Bearers (RBs), and one PDU session may have a plurality of data flows with different QoS requirements.
Fig. 3 is a schematic diagram of a relationship between RBs and QoS flows in a PDU session provided by the present application.
As shown in fig. 3, the SMF selects one UPF as an anchor point for the PDU session connection, and establishes the PDU session between the selected UPF and the UE. One PDU session includes at least one RB, and one RB includes at least one QoS flow. QoS flows are identified in the network communication system using QoS flow identifiers (QoS flow identifier, QFI) and one QoS flow is identified with a unique QFI.
It should be appreciated that QoS flows mapped on the same RB can also use different QoS scheduling priorities, which can be expressed in terms of QoS configuration.
In one PDU session, qoS flows with the same QFI use the same traffic forwarding handling. The processing mode comprises scheduling, optimizing and the like.
Additionally, the RB is established between the RAN and the UE, and the RAN communicates with the UPF of the 5GC through other channel interface connections. For example, communication is performed between the RAN and the UPF of the 5GC via the N3 interface.
One PDU session may have multiple QoS flows with some correlation of data carried between the multiple QoS flows. The network system can better carry multi-modal traffic when considering the correlation of data carried between multiple QoS flows.
The following describes parameters describing the correlation between different QoS flows.
Illustratively, qoS flow 1 and QoS flow 2 are any two of the M data flows of the UE.
1. Correlation coefficient W 1,2
W 1,2 The correlation of the application layer data transmitted between QoS flow 1 and QoS flow 2 is shown. The larger the correlation coefficient, the more similar the meaning and semantics of the data transmitted between QoS flow 1 and QoS flow 2 expressed at the application layer.
It can also be said that W 1,2 The degree of association between the data of QoS flow 1 and the data of QoS flow 2 is indicated.
Alternatively, W 1,2 The probability or proportion of the information that QoS flow 1 can recover the data itself based on the data of QoS flow 2 may also be expressed.
Illustratively W 1,2 The range of the value of (2) can be 0.ltoreq.W 1,2 ≤1;W 1,2 The value range of (a) can also be a pre-configured or pre-defined set W, the application is applied to W 1,2 The range of values of (2) is not limited.
2. Association/dependency indication S 1,2
S 1,2 Indicating whether QoS flow 1 has an association or dependency with QoS flow 2.
Exemplary, if QoS flow 1 has an association/dependency with QoS flow 2, S 1,2 The value of (2) may be 1; if QoS flow 1 pairs QosS stream 2 has no dependency, S 1,2 The value of (2) can be 0, and the application is applied to S 1,2 The value of (2) is not limited.
Or S 1,2 It may also indicate whether QoS flow 1 needs to be based on the data in QoS flow 2 to be able to recover the information carried by its own data.
Illustratively, if QoS flow 1 needs to recover the information carried by its own data based on the data in QoS flow 2, S 1,2 The value of (2) may be 1; if QoS flow 1 does not need to recover the information carried by its own data based on the data in QoS flow 2, S 1,2 The value of (2) can be 0, and the application is applied to S 1,2 The value of (2) is not limited.
It will be appreciated that the association/dependence indicator value S 1,2 Can be regarded as the above-mentioned correlation coefficient W 1,2 Is a special case of the above.
3. Correlation time window T 1,2
T 1,2 Represented in time window T 1,2 In this, the correlation of the application layer data transferred between QoS flow 1 and QoS flow 2 is valid.
As shown in fig. 4, in the uplink or downlink data transmission process, if the interval between the time when the data packet 2 of the QoS flow 2 arrives first and the time when the data packet 1 of the QoS flow 1 arrives last does not exceed T 1,2 Packet 2 of QoS flow 2 and packet 1 of QoS flow 1 may be considered to be still related.
Additionally, in fig. 4, the time of arrival of packet 3 of QoS flow 2 and the time of arrival of packet 1 of QoS flow 1 are significantly separated by more than T 1,2 Therefore, the data packet 3 of the QoS flow 2 and the data packet 1 of the QoS flow 1 cannot be guaranteed to be correlated.
Illustratively T 1,2 The range of the value of (C) can be T 1,2 ≥0;T 1,2 The range of values of (c) may also be a pre-configured or predefined set T in advance.
It should be understood that QoS flow 1 and QoS flow 2 may be the same QoS flow or may be different QoS flows, which is not limited by the present application.
When QoS flow 1 and QoS flow 2 are the same QoS flow, T 1,2 Data packet and Qo representing QoS flow 1The data packets of S-stream 2 may remain for an associated period of time; when QoS flow 1 and QoS flow 2 are different QoS flows, T 1,2 Meaning that QoS flow 1 and QoS flow 2 may remain associated for a period of time.
Additionally, by way of example and not limitation, the correlation information of QoS flow 1 may represent not only the correlation information of QoS flow 1 and QoS flow 2 listed above, but also the correlation information of QoS flow 1 and two or more other QoS flows. For example, the correlation coefficient W 1,23 The correlation of QoS flow 1 with the application layer data transmitted between QoS flow 2 and QoS flow 3 is shown. The larger the correlation coefficient is, the more similar the meaning and semantics of the data transmitted between the QoS flow 1 and the QoS flow 2 and the QoS flow 3 are expressed in the application layer;
Alternatively, W 1,23 A degree of correlation between data of QoS flow 1 and data of QoS flows 2 and 3;
alternatively, W 1,23 The probability or proportion of the information carried by the data of QoS flow 1 based on the data of QoS flow 2 and QoS flow 3 that can recover the own data can also be expressed.
Additionally, the correlation parameters of different QoS flows are not interchangeable. For example, W 1,2 Representing the probability or proportion of the information carried by the data of QoS flow 1 based on QoS flow 2 to recover the data of itself, whereas W 2,1 Representing the probability or proportion of the information carried by the data of QoS flow 2 based on QoS flow 1 to recover the data thereof, W 1,2 And W is 2,1 Are not necessarily equal.
The correlation information of QoS flows described hereinafter includes at least one of the above-described correlation coefficient, correlation/dependency indication, and correlation time window.
By way of example, and not limitation, a UE may be considered to have M QoS flows, and table 1 below shows an example of correlation information for a certain QoS flow, the identifier of which is denoted QFI1.
TABLE 1
QFI of QoS flows | Correlation coefficient | Correlation time window |
QFI2 | W 1,2 | T 1,2 |
QFI3 | W 1,3 | T 1,3 |
… | … | … |
QFIM | W 1,M | T 1,M |
In the case of table 1 above, the correlation information of the QoS flows of QFI1 includes the correlation coefficient and the correlation time window between the QoS flow of QFI1 and any one of the other M-1 QoS flows.
The correlation coefficient and the correlation time window may be selected from the respective sets.
By way of example and not limitation, table 2 below shows another example of correlation information for a QoS flow, identified as QFI1.
TABLE 2
QFI of QoS flows | Association/dependency indication | Correlation time window |
QFI2 | S 1,2 | T 1,2 |
QFI 3 | S 1,3 | T 1,3 |
… | … | … |
QFI M | S 1,M | T 1,M |
In the case of table 2 above, the correlation information of the QoS flows of QFI1 includes an association/dependency indication and a correlation time window between the QoS flow of QFI1 and any one of the other M-1 QoS flows.
Wherein, the association/dependence indication and the value of the relevant time window can be selected from the respective sets.
By way of example and not limitation, table 3 below shows another example of correlation information for a QoS flow, identified as QFI1.
TABLE 3 Table 3
QFI of QoS flows | Correlation coefficient |
QFI 2 | W 1,2 |
QFI 3 | W 1,3 |
… | … |
QFI M | W 1,M |
In the case of table 3 above, the correlation information of the QoS flows of QFI1 includes a correlation coefficient between the QoS flow of QFI1 and any one of the other M-1 QoS flows.
The value of the correlation coefficient may be selected from the corresponding set.
It should be appreciated that in the case where the correlation information includes a correlation coefficient, it can be considered that the correlation between the QoS flow of QFI1 and any one of the other M-1 QoS flows is not limited by the time window, and such correlation is always valid.
By way of example and not limitation, table 4 below shows another example of correlation information for a QoS flow, identified as QFI1.
TABLE 4 Table 4
QFI of QoS flows | Association/dependency indication |
QFI 2 | S 1,2 |
QFI 3 | S 1,3 |
… | … |
QFI M | S 1,M |
In the case of table 4 above, the correlation information of the QoS flows of QFI1 includes an association/dependency indication between the QoS flow of QFI1 and any one of the other M-1 QoS flows.
The value of the association/dependency instruction may be selected from the corresponding set.
It should be appreciated that where the correlation information includes an association/dependency indication, it is also possible to consider that the correlation between the QoS flow of QFI1 and any one of the other M-1 QoS flows is not limited by the time window, and such correlation is always valid.
By way of example and not limitation, table 5 below shows another example of correlation information for a QoS flow, identified as QFI1.
TABLE 5
QFI of QoS flows | Correlation time window |
QFI 2 | T 1,2 |
QFI 3 | T 1,3 |
… | … |
QFI M | T 1,M |
In the case of table 5 above, the correlation information of the QoS flows of QFI1 includes a correlation time window between the QoS flow of QFI1 and any one of the other M-1 QoS flows.
The value of the relevant time window can be selected from the corresponding set.
It should be appreciated that where the correlation information includes a correlation time window, the correlation coefficient or association/dependency indication between the QoS flow of QFI1 and any one of the other M-1 QoS flows may be considered a constant, which may be specified by standards or industry consensus, as the present application is not limited in this regard.
The above embodiment describes a method for representing the correlation parameters and the correlation of QoS flows between different QoS flows, so that the meaning and semantic similarity of QoS flows expressed in an application layer in multi-mode service can be clearly and effectively reflected.
By introducing the correlation information of the QoS flows, the network system can take the correlation among the QoS flows into consideration when scheduling the QoS flows, so that the multi-mode service can be better carried.
The following embodiments mainly describe how correlation information of QoS flows is transmitted in a network system, and how scheduling and configuration optimization of QoS flows are performed using correlation between QoS flows. Fig. 5 is a schematic flow chart of a scheduling and configuration optimization method provided by the present application.
It should be noted that, in fig. 5, the application server, the first network element, the access network device, and the terminal device are used as the execution bodies of the interactive schematic to illustrate the method, but the present application is not limited to the execution bodies of the interactive schematic.
The application server, the first network element, the access network device and the terminal device in fig. 5 may be, for example, a chip system or a processor supporting the implementation of the method, or may be a logic module or software implementing all or part of the functions thereof.
The application server may identify and obtain correlation information of QoS flows of the multi-modal service based on artificial intelligence (artificial intelligence, AI), multi-modal information fusion, and the like.
In step S510, the application server sends the correlation information between QoS flows to the first network element.
Specifically, the first network element may be a 5GC network element, such as SMF, UPF, etc.
If the first network element is an SMF, the application server may send out the correlation information of the QoS flow through control plane signaling of the core network.
If the first network element is a UPF, the application server may issue the correlation information of the QoS flow through the application layer data plane.
The following detailed descriptions of fig. 6, fig. 7, and fig. 8 will be given for the specific schemes of the application server transmitting the correlation information of the QoS flow through the control plane signaling and the application layer data plane of the core network, which are not described herein.
In step S512, the first network element acquires correlation information between QoS flows.
Correspondingly, when the first network element is the SMF, the SMF can acquire the correlation information between QoS flows through the 5G network control plane signaling; when the first network element is a UPF, the UPF may also obtain correlation information between QoS flows through packet transmission of the application layer data plane.
In step S514, the first network element sends the correlation information of the QoS flow to the access network device. The access network device receives correlation information of QoS flows from the first network element.
In step S516, the access network device may schedule and optimize the relevant QoS flows or the data packets of the relevant QoS flows when transmitting data with the terminal device based on the correlation information of the QoS flows.
Illustratively, the actions of scheduling and configuration optimization described above may be: when the network channel is congested, qoS flow 1 is related to QoS flow 2, or QoS flow 1 can be recovered based on QoS flow 2, then the access network device actively discards part or all of the data packets in QoS flow 1, or the access network device stops data transmission of QoS flow 1, so as to reduce the pressure of network air interface.
Illustratively, the actions of scheduling and configuration optimization described above may also be: when the network channel is congested, the QoS flow 1 is related to the QoS flow 2, or the QoS flow 1 can be recovered based on the QoS flow 2, so that the access network device can reduce the scheduling priority of the QoS flow 1, and the data transmission of the QoS flow with high scheduling priority is preferentially performed in the uplink and downlink data transmission process, so that the data transmission of other QoS flows with higher priority can be preferentially ensured, and the service quality of the service is improved.
Illustratively, the actions of scheduling and configuration optimization described above may also be: when the network channel is congested, qoS flow 1 is related to QoS flow 2, or QoS flow 1 can be recovered based on QoS flow 2, then the access network device maps the related QoS flow 1 and QoS flow 2 on different data radio bearers (data radio bearer, DRB) respectively, so that robustness of QoS flow 1 data transmission and QoS flow 2 data transmission can be improved.
By way of example and not limitation, the above is the case of scheduling and configuration optimization when QoS flow 1 has a correlation with QoS flow 2, and may be the case when QoS flow 1 has a correlation with two or more other QoS flows.
Additionally, the act of choosing which scheduling and configuration optimization depends on the magnitude of the correlation of QoS flow 1 with QoS flow 2 or two or more other QoS flows, the congestion condition of the network, etc.
In general, the partial dropping of the data packet of QoS flow 1, or the lowering of the scheduling priority of QoS flow 1, or the mapping of QoS flow 1 to QoS flow 2 or two or more other QoS flows into different DRBs is performed because the data of QoS flow 1 can be quickly recovered based on the association with QoS flow 2 or two or more other QoS flows, without affecting the authenticity of the data.
In step S518, in the downlink data transmission stage, the data packet sent by the access network device to the terminal device is transmitted by the QoS flow bearer determined by the access network device after the scheduling and configuration optimization.
Next, by way of example and not limitation, fig. 6 details the technical solution of the present application by taking the first network element as an SMF and the terminal device as a UE as an example.
Fig. 6 is a schematic flow chart of a method for acquiring correlation information of QoS flows through control plane signaling.
In fig. 6, the application server, AF, PCF, NEF, SMF, AMF, the access network device, and the UE are shown as the execution bodies of the interactive schematic, but the present application is not limited to the execution bodies of the interactive schematic.
The application server, AF, PCF, NEF, SMF, AMF, access network device and UE in fig. 6 may be, for example, a chip system or a processor supporting the implementation of the method, or may be logic modules or software implementing all or part of the functions thereof.
The application server can identify and acquire the correlation information of the QoS flow of the multi-mode service based on the technologies of AI, multi-mode information fusion and the like.
In step S610, the application server sends the identified and acquired correlation information of QoS flows of the multi-mode service to the AF, which receives the correlation information of QoS flows of the multi-mode service from the application server.
The application server is mainly responsible for video source encoding and decoding, rendering, and the like.
Next, the AF may send the acquired correlation information of the QoS flow to the SMF in the following two information manners:
the first way is: step S612, AF sends the acquired correlation information of QoS flow to PCF through N5 interface;
in step S614, the PCF further sends the correlation information of the received QoS flow to the SMF through the N7 interface.
The second way is: step S616, AF sends the acquired QoS flow correlation information to NEF through N33 interface;
in step S618, the NEF further sends the correlation information of the received QoS flow to the SMF through the N29 interface.
Specifically, the information transfer of the N5 interface, the N7 interface, the N33 interface and the N29 interface adopts an application layer protocol HTTP/2.
In step S620, the SMF establishes a corresponding PDU session based on the requirement of the multi-mode service, and adds the correlation between the mapped QoS flows in the PDU session as a new QoS feature to the QoS profile. The SMF may add the new QoS feature to the QoS profile in the form of correlation information for the QoS flow.
In step S622, the SMF sends the QoS configuration file carrying the correlation information of the QoS flow to the AMF.
In step S624, the AMF plays a role in transparent transmission between the SMF and the access network device, and issues the received QoS configuration file carrying the correlation information of the QoS flow to the access network device.
It should be noted that the above-mentioned correlation information of QoS flows in the QoS profile received by the access network device is received from the SMF, and the correlation information of QoS flows in the QoS profile on the SMF side is extracted by the SMF from the application server side, so that the form of the correlation information of QoS flows in the QoS profile received by the access network device is not exactly the same as the form of the correlation information of QoS flows on the application server side.
Illustratively, the QoS profile includes some of the following parameters:
fifth generation quality of service requirement identifier (5G QoS identifier,5QI), ARP, correlation information, RQA, indication control, MPLR, GFBR, maximum guaranteed stream bit rate (maximum guranteed flow bit rate, MFBR), etc.
Wherein, 5QI, ARP, correlation information are all contained in the configuration file of QoS flow; RQA is included in the QoS flows' profiles of Non-GBR; the control is indicated MPLR, GFBR, MFBR is contained in the configuration file of the QoS flow of GBR.
Therefore, whether a QoS flow belongs to a QoS flow of GBR or a QoS flow of Non-GBR depends on its QoS profile.
The QoS configuration file received by the access network device may be provided by the SMF to the RAN through the AMF, or may be preconfigured in the RAN, which is not limited by the present application.
In step S626, after the access network device obtains the QoS configuration file carrying the correlation information of the QoS flow, in the data transmission stage, the access network device performs scheduling and configuration optimization of the QoS flow according to the correlation information of the QoS flow.
Illustratively, the actions of scheduling and configuration optimization described above may be: when the network channel is congested, qoS flow 1 is related to QoS flow 2, or QoS flow 1 can be recovered based on QoS flow 2, then the access network device actively discards part or all of the data packets in QoS flow 1, or the access network device stops data transmission of QoS flow 1, so as to reduce the pressure of network air interface.
Illustratively, the actions of scheduling and configuration optimization described above may also be: when the network channel is congested, the QoS flow 1 is related to the QoS flow 2, or the QoS flow 1 can be recovered based on the QoS flow 2, so that the access network device can reduce the scheduling priority of the QoS flow 1, and the data transmission of the QoS flow with high scheduling priority is preferentially performed in the uplink and downlink data transmission process, so that the data transmission of other QoS flows with higher priority can be preferentially ensured, and the service quality of the service is improved.
Illustratively, the actions of scheduling and configuration optimization described above may also be: when the network channel is congested, qoS flow 1 is related to QoS flow 2, or QoS flow 1 can be recovered based on QoS flow 2, then the access network device maps the related QoS flow 1 and QoS flow 2 on different data radio bearers (data radio bearer, DRB) respectively, so that robustness of QoS flow 1 data transmission and QoS flow 2 data transmission can be improved.
By way of example and not limitation, the above is the case of scheduling and configuration optimization when QoS flow 1 has a correlation with QoS flow 2, and may be the case when QoS flow 1 has a correlation with two or more other QoS flows.
Additionally, the act of choosing which scheduling and configuration optimization depends on the magnitude of the correlation of QoS flow 1 with QoS flow 2 or two or more other QoS flows, the congestion condition of the network, etc.
In general, the partial dropping of the data packet of QoS flow 1, or the lowering of the scheduling priority of QoS flow 1, or the mapping of QoS flow 1 with QoS flow 2 or QoS flow 1 with two or more other QoS flows into different DRBs is performed because the data of QoS flow 1 can be quickly recovered based on the correlation with QoS flow 2 or QoS flow 1 based on the other two or more QoS flows, without affecting the authenticity of the data.
In step 628, during the downlink data transmission stage, the access network device carries the downlink data sent to the UE through the QoS flow after the optimization by scheduling and configuration.
Fig. 6 shows that the method for obtaining the correlation information of the QoS flow by the control plane signaling has low update frequency and low cost. Meanwhile, the access network equipment performs scheduling and configuration optimization on the QoS flow based on the correlation information of the QoS flow, so that the transmission efficiency and the user experience of the multi-mode service are improved.
Fig. 7 is a schematic flow chart of another method for acquiring correlation information of QoS flows through control plane signaling provided by the present application.
In fig. 7, the SMF, AMF, access network device, and UE are used as the execution bodies of the interactive schematic to illustrate the method, but the present application is not limited to the execution bodies of the interactive schematic.
The SMF, AMF, access network device and UE in fig. 7 may be a chip, a system on chip or a processor, etc. supporting the implementation of the method, or may be a logic module or software implementing all or part of the functions thereof, for example.
In step S710, the UE side identifies the correlation information of the QoS flow at the application layer level, and transmits the correlation information to the access network device through the uplink request information, and the correlation information is transmitted to the SMF by the access network device.
In step S720, the SMF establishes a corresponding PDU session based on the requirements of the multi-mode service, and adds the correlation between the mapped QoS flows in the PDU session as a new QoS feature to the configuration of the QoS flows. The SMF may add the new QoS feature to the configuration of the QoS flow in the form of correlation information of the QoS flow.
Specifically, the configuration of QoS flows includes the following two parts:
the first part is the QoS profile of the access network equipment, and the second part is the QoS rule of the UE side. The correlation information of QoS flows may be respectively included in the above two parts.
It should be noted that the correlation information of the QoS flows respectively included in the above two parts is obtained from the configuration of QoS flows, and the correlation information in the configuration of QoS flows is extracted by the SMF from the correlation information of QoS flows sent by the UE, so that the form of the correlation information of QoS flows in the QoS configuration file, the form of the correlation information of QoS flows in the QoS rule, respectively received by the access network device, the UE, is not exactly the same as the form of the correlation information of QoS flows sent by the UE to the SMF.
Steps S722 to S726 refer to steps S622 to S626, and are not described here.
Optionally, in step S728, the SMF sends the QoS rule to the AMF.
Optionally, in step S730, the AMF plays a role of transparent transmission between the SMF and the UE, and issues the received QoS rule to the UE side.
Illustratively, the QoS rules may include some of the following information:
whether the QoS rule is an indication of a default QoS rule, qoS rule identification (QoS rule identifier, QRI), QFI, priority value of QoS rule, correlation information of QoS flow.
Specifically, the QoS rule identifier is used to identify QoS rules that are used for traffic detection and routing of data packets transmitted in the QoS flow; QFI is used to identify QoS flows; the priority value of the QoS rule is used to determine the evaluation order of the QoS rule, and the evaluation of the QoS rule is performed in the order in which the priority value increases.
Optionally, the QoS rule further includes a packet filter set.
In step S732, after performing QoS flow scheduling and configuration optimization according to the QoS flow correlation information, the access network device sends scheduling information to the UE, where the scheduling information is used to schedule the UE to transmit the QoS flow of the uplink data, so that the UE can carry the uplink data through the QoS flow after the access network device scheduling and configuration optimization.
Specifically, if the SMF does not send the QoS rule to the UE, the access network device schedules, through the scheduling information, a QoS flow for carrying uplink data of the UE; if the SMF sends the QoS rule to the UE, the UE may actively discard some or all of the data packets in the QoS flow with higher correlation based on the correlation information of the QoS flow carried in the QoS rule.
That is, the UE may perform some simple optimization actions based on the correlation information of QoS flows in the QoS rules after accepting the SMF-indicated QoS rules. For example, the UE may actively discard some or all of the data packets in the QoS flow with higher correlation in the uplink data transmission process.
The embodiment of fig. 7 is different from the embodiment of fig. 6 in that the correlation information of the QoS flow transmitted in fig. 6 is mainly used for scheduling of the QoS flow in the downlink data transmission process from the access network device to the UE side, and the correlation information of the QoS flow transmitted in fig. 7 is mainly used for scheduling of the QoS flow in the uplink data transmission process from the UE to the access network device. The SMF in fig. 7 indicates the correlation information of the QoS flow not only to the access network device but also to the UE side.
With the embodiment of fig. 7, not only the RAN side can learn the correlation information of the QoS flow, but also the UE side can learn the correlation information of the QoS flow. In this way, the UE side can autonomously discard some or all data packets in the QoS flow with higher correlation in the uplink transmission stage, so as to alleviate network congestion.
Fig. 6 and fig. 7 above describe a method for acquiring the correlation information of the QoS flow through the control plane signaling, and fig. 8 is a schematic flowchart of a method for acquiring the correlation information of the QoS flow through the data plane data transmission provided by the present application.
Fig. 8 is an embodiment of scheduling of QoS flows applicable to a RAN-to-UE side downlink data transmission procedure when transmitting correlation information of QoS flows through a data plane.
It should be noted that, in fig. 8, the application server, the UPF, and the access network device are used as the execution bodies of the interactive schematic to illustrate the method, but the present application is not limited to the execution bodies of the interactive schematic.
The application server, UPF, access network device in fig. 7 may be a chip, a system on a chip, a processor, etc. supporting the implementation of the method, or may be a logic module or software implementing all or part of the functions thereof, for example.
Firstly, the application server can acquire correlation information between QoS flows of the multi-mode service based on technologies such as AI identification, multi-mode information fusion and the like.
In step S810, the application server identifies and extracts the correlation information of the QoS flow of the multi-mode service from the application layer, encapsulates the correlation information of the QoS flow, and then transmits the encapsulated correlation information to the UPF along with the data packet through the N6 interface.
In particular, the application server may encapsulate the correlation information of the QoS flows of the multi-modal service in the transport layer.
Optionally, the correlation information of QoS flows may also be encapsulated in an extension header field of the IPv4 or IPv6 protocol.
Optionally, the correlation information of QoS flows may also be encapsulated in real-time transport protocol (real-time transport protocol, RTP) layer.
Optionally, the correlation information of QoS flows may also be encapsulated in a newly defined protocol layer between the user datagram protocol (user datagram protocol, UDP) layer of the transport layer and the RTP layer of the application layer, as shown in fig. 9.
In step S812, the UPF receives the correlation information of the QoS flow and transmits the correlation information to the access network device through an extension header of the general packet radio system tunnel user protocol (general packet radio system tunnelling protocol for the user, GTP-U). The access network equipment receives the correlation information of the QoS flow through the expansion head of the GTP-U, and optimizes a scheduling mechanism in a data transmission stage.
It should be noted that the correlation information of the QoS flow carried by the extension header of the GTP-U is extracted from the application server by the UPF, so that the correlation information of the QoS flow carried by the extension header of the GTP-U is not exactly the same as the correlation information of the QoS flow at the application server.
In step S814, after the access network device obtains the correlation information of the QoS flow, in the transmission stage of the downlink data, the access network device schedules and optimizes the QoS flow according to the correlation information of the QoS flow.
During uplink data transmission, the access network device can send scheduling and configuration information of the QoS flow to the UE, so that the UE can carry uplink data through the RAN after being optimized by scheduling and configuration in the uplink data transmission stage.
Illustratively, the actions of scheduling and configuration optimization described above may be: when the network channel is congested, qoS flow 1 is related to QoS flow 2, or QoS flow 1 can be recovered based on QoS flow 2, then the access network device actively discards part or all of the data packets in QoS flow 1, or the access network device stops data transmission of QoS flow 1, so as to reduce the pressure of network air interface.
Illustratively, the actions of scheduling and configuration optimization described above may also be: when the network channel is congested, the QoS flow 1 is related to the QoS flow 2, or the QoS flow 1 can be recovered based on the QoS flow 2, so that the access network device can reduce the scheduling priority of the QoS flow 1, and the data transmission of the QoS flow with high scheduling priority is preferentially performed in the uplink and downlink data transmission process, so that the data transmission of other QoS flows with higher priority can be preferentially ensured, and the service quality of the service is improved.
Illustratively, the actions of scheduling and configuration optimization described above may also be: when the network channel is congested, qoS flow 1 is related to QoS flow 2, or QoS flow 1 can be recovered based on QoS flow 2, then the access network device maps the related QoS flow 1 and QoS flow 2 on different data radio bearers (data radio bearer, DRB) respectively, so that robustness of QoS flow 1 data transmission and QoS flow 2 data transmission can be improved.
By way of example and not limitation, the above is the case of scheduling and configuration optimization when QoS flow 1 has a correlation with QoS flow 2, and may be the case when QoS flow 1 has a correlation with two or more other QoS flows.
It should be noted that, compared to the method of fig. 6 and fig. 7, in which the control plane signals indicate the correlation information of the QoS flow, the method of fig. 8, in which the access network device obtains the correlation information of the QoS flow through data transmission of the data plane, is more rapid and effective, and can rapidly adapt to the change of the application layer information.
Additionally, the method of transmitting the correlation information of the QoS flow through the data plane data in fig. 8 is applicable to a scenario where the time change frequency of the correlation of the QoS flow is fast.
Illustratively, when the correlation information of the QoS flow changes every 10 ms or 20 ms, the system may transmit the correlation information of the QoS flow through a method of transmitting the correlation information of the QoS flow on a data plane, so that the access network device quickly and effectively performs scheduling and configuration optimization on the QoS flow with correlation based on the correlation information. The 10 ms and 20 ms are used to illustrate that the correlation information of the QoS flow changes rapidly, and the specific time change frequency can be changed correspondingly according to different service requirements, which is not limited by the present application.
For example, when the correlation information of the QoS flow changes every 1min or 2min, the system may transmit the correlation information of the QoS flow by a method of controlling the correlation information of the face signaling indication QoS flow, which has low update frequency and low signaling overhead. The 1min and 2min are used to illustrate that the correlation information of the QoS flow changes slowly, and the specific time change frequency can be changed correspondingly according to different service requirements, which is not limited in the present application.
Fig. 10 shows a schematic block diagram of an apparatus 100 for transmitting correlation information according to an embodiment of the present application, where the apparatus 500 for transmitting correlation information may correspond to (for example, may be configured or is the same as) the first network element, the application server, AF, PCF, NEF, SMF, and the UE described in the embodiments of fig. 5, 6, 7, and 8, and each module or unit in the apparatus 100 for transmitting correlation information is used to perform each action or process performed by the first network element, the application server, AF, PCF, NEF, SMF, and the UE described in the embodiments of fig. 5, 6, 7, and 8, respectively, and detailed descriptions thereof are omitted herein to avoid redundancy.
In an embodiment of the present application, the apparatus 100 may be the first network element, the application server, AF, PCF, NEF, SMF, and the UE described in the embodiments of fig. 5, fig. 6, fig. 7, and fig. 8, where the apparatus 100 may include: the processor is in communication with the transceiver.
Optionally, the apparatus further comprises a memory communicatively coupled to the processor. In the alternative, the processor, memory, and transceiver may be communicatively coupled, the memory may be used to store programs or instructions, and the processor is used to execute the programs or instructions stored in the memory to control the transceiver to transmit information or signals.
In this case, the interface unit in the apparatus 100 shown in fig. 10 may correspond to the transceiver, and the processing unit in the apparatus 100 shown in fig. 10 may correspond to the processor.
In an embodiment of the present invention, the apparatus 100 may be a chip (or a chip system) installed in the first network element, the application server, AF, PCF, NEF, SMF and the UE described in the embodiments of fig. 5, 6, 7 and 8, where the apparatus 100 may include: the processor may be communicatively connected to the first network element, the application server, AF, PCF, NEF, SMF and the transceiver of the UE as described in the embodiments of fig. 5, 6, 7, 8 via the input-output interface, and optionally the apparatus further comprises a memory communicatively connected to the processor. In the alternative, the processor, memory, and transceiver may be communicatively coupled, the memory may be used to store programs or instructions, and the processor is used to execute the programs or instructions stored in the memory to control the transceiver to transmit information or signals.
In this case, the interface unit in the apparatus 100 shown in fig. 10 may correspond to the input-output interface, and the processing unit in the apparatus 100 shown in fig. 10 may correspond to the processor.
Fig. 11 shows a schematic block diagram of an apparatus 200 for receiving correlation information according to an embodiment of the present invention, where the apparatus 200 for receiving correlation information may correspond to (for example, may be configured to implement) the first network element, AF, PCF, NEF, SMF, the access network device and the UE described in the embodiments of fig. 5, fig. 6, fig. 7 and fig. 8, and each module or unit in the apparatus 200 for receiving correlation information is used to perform each action or process performed by the first network element, AF, PCF, NEF, SMF, the access network device and the UE described in the embodiments of fig. 5, fig. 6, fig. 7 and fig. 8, respectively, and detailed descriptions thereof are omitted herein to avoid redundancy.
In an embodiment of the present invention, the apparatus 200 may be the first network element, AF, PCF, NEF, SMF, the access network device, and the UE described in the embodiments of fig. 5, fig. 6, fig. 7, and fig. 8, where the apparatus 200 may include: the device further comprises a memory communicatively coupled to the processor. In the alternative, the processor, memory, and transceiver may be communicatively coupled, the memory may be used to store programs or instructions, and the processor is used to execute the programs or instructions stored in the memory to control the transceiver to receive information or signals.
In this case, the interface unit in the apparatus 200 shown in fig. 11 may correspond to the transceiver, and the processing unit in the apparatus 200 shown in fig. 11 may correspond to the processor.
In an embodiment of the present invention, the apparatus 200 may be a chip (or a chip system) installed in the first network element, AF, PCF, NEF, SMF, the access network device, and the UE described in the embodiments of fig. 5, 6, 7, and 8, where the apparatus 200 may include: the processor may be communicatively connected to the first network element, AF, PCF, NEF, SMF, the access network device and the transceiver of the UE described in the embodiments of fig. 5, 6, 7, 8 through the input/output interface, and optionally the apparatus further comprises a memory communicatively connected to the processor. In the alternative, the processor, memory, and transceiver may be communicatively coupled, the memory may be used to store programs or instructions, and the processor is used to execute the programs or instructions stored in the memory to control the transceiver to receive information or signals.
In this case, the interface unit in the apparatus 200 shown in fig. 11 may correspond to an input interface, and the processing unit in the apparatus 200 shown in fig. 11 may correspond to the processor.
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 solution. 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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 this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (28)
1. A method of communication, comprising:
receiving first correlation information from a first network element, the first correlation information being for indicating a correlation between a first quality of service, qoS, flow and one or more second QoS flows over a first period of time;
and transmitting the data of the first QoS flow and the data of the one or more second QoS flows in the first period according to the first correlation information and the terminal equipment.
2. The method according to claim 1, wherein the first correlation information is specifically used to indicate that the first QoS flow and the one or more second QoS flows are correlated within the first period of time.
3. The method according to claim 1, wherein the first correlation information is specifically used to indicate a degree of correlation of the first QoS flow with the one or more second QoS flows.
4. A method according to any one of claims 1 to 3, wherein the first correlation information comprises indication information of the first period of time.
5. The method according to any of claims 1 to 4, wherein the first network element is a session management network element.
6. The method of claim 5, wherein receiving the first correlation information from the session management network element comprises:
and receiving QoS flow configuration information from the session management network element, wherein the QoS flow configuration information comprises the first correlation information.
7. The method according to any of claims 1 to 4, wherein the first network element is a user plane functional network element.
8. The method of claim 7, wherein receiving the first correlation information from the user plane function network element comprises:
the first correlation information from the user plane function network element is received through an extension header of a general packet radio system tunnel user protocol GTP-U.
9. The method according to any of claims 1 to 8, wherein the transmission of the data of the first QoS flow and the data of the one or more second QoS flows with the terminal device in the first period of time according to the first correlation information comprises at least one of:
Discarding part or all of the data of the first QoS flow during the first period according to the first correlation information, or,
reducing a scheduling priority of the first QoS flow within the first period of time, or,
the first QoS flow and the one or more second QoS flows are mapped onto different data radio bearers, respectively, according to the first correlation information.
10. A method of communication, the method comprising:
first correlation information is sent to the access network device, the first correlation information being used to indicate a correlation between a first quality of service, qoS, flow and one or more second QoS flows over a first period of time.
11. The method according to claim 10, wherein the first correlation information is specifically used to indicate that the first QoS flow and the one or more second QoS flows are correlated during the first period of time.
12. The method according to claim 10, wherein the first correlation information is specifically used to indicate a degree of correlation of the first QoS flow with the one or more second QoS flows.
13. The method according to any one of claims 10 to 12, wherein the first correlation information includes indication information of the first period.
14. The method according to any of claims 10 to 13, wherein the sending the first correlation information to the access network device comprises:
and sending QoS flow configuration information to the access network equipment, wherein the QoS flow configuration information comprises the first correlation information.
15. The method according to any of claims 10 to 13, wherein the sending the first correlation information to the access network device comprises:
and transmitting the first correlation information to the access network equipment through an extension head of a general packet radio system tunnel user protocol GTP-U.
16. The method according to any one of claims 10 to 14, further comprising:
and sending QoS flow rule information to the terminal equipment, wherein the QoS flow rule information comprises the first correlation information.
17. An apparatus for communication, the apparatus comprising:
an interface unit for receiving first correlation information from a first network element, the first correlation information being for indicating a correlation between a first quality of service, qoS, flow and one or more second QoS flows over a first period of time;
and the processing unit is used for controlling the device and the terminal equipment to transmit the data of the first QoS flow and the data of the one or more second QoS flows in the first period according to the first correlation information.
18. The apparatus of claim 17, wherein the first correlation information is specifically configured to indicate that the first QoS flow and the one or more second QoS flows are correlated during the first period of time.
19. The apparatus of claim 17, wherein the first correlation information is specifically configured to indicate a degree to which the first QoS flow is correlated with the one or more second QoS flows.
20. The apparatus according to any one of claims 17 to 19, wherein the first correlation information further comprises indication information of the first period of time.
21. The apparatus according to any of claims 17 to 20, wherein the first network element is a session management network element.
22. The apparatus of claim 21, wherein the interface unit is further configured to receive QoS flow configuration information from the session management network element, the QoS flow configuration information comprising the first correlation information.
23. The apparatus according to claims 17 to 20, wherein the first network element is a user plane function network element.
24. The apparatus of claim 23, wherein the interface unit is further configured to receive the first correlation information from the user plane function network element via an extension header of a general packet radio system tunneling user protocol, GTP-U.
25. The apparatus according to any of claims 17 to 24, wherein the processing unit configured to control the apparatus and terminal device to perform transmission of the data of the first QoS flow and the data of the one or more second QoS flows during the first period of time according to the first correlation information comprises at least one of:
the processing unit discards part or all of the data of the first QoS flow for the first period of time according to the first correlation information, or,
the processing unit reduces the scheduling priority of the first QoS flow in the first period of time, or,
the processing unit maps the first QoS flow and the one or more second QoS flows to different data radio bearers, respectively, according to the first correlation information.
26. A communication device, comprising:
a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of communication of any of claims 1 to 16.
27. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when run on a computer, causes the computer to perform the method of communication according to any of claims 1 to 16.
28. A computer program product comprising computer program code which, when run, implements the communication method of any of claims 1 to 16.
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JP7175977B2 (en) * | 2017-10-30 | 2022-11-21 | 華為技術有限公司 | Methods, Devices and Systems for Improving Service Reliability |
JP6982115B2 (en) * | 2019-03-19 | 2021-12-17 | ノキア テクノロジーズ オーユー | Dynamic QoS mapping between associated radio bearers according to URLLC tactile feedback usage examples |
WO2021136636A1 (en) * | 2020-01-03 | 2021-07-08 | Nokia Technologies Oy | Grouping qos flow for user equipment to user equipment communications |
WO2021138807A1 (en) * | 2020-01-07 | 2021-07-15 | Oppo广东移动通信有限公司 | Quality of service (qos) parameter configuration method and related device |
CN113676924B (en) * | 2020-05-15 | 2023-10-13 | 华为技术有限公司 | Communication method, device and system |
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