WO2023185769A1 - Procédé de communication, appareil de communication et système de communication - Google Patents

Procédé de communication, appareil de communication et système de communication Download PDF

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Publication number
WO2023185769A1
WO2023185769A1 PCT/CN2023/084182 CN2023084182W WO2023185769A1 WO 2023185769 A1 WO2023185769 A1 WO 2023185769A1 CN 2023084182 W CN2023084182 W CN 2023084182W WO 2023185769 A1 WO2023185769 A1 WO 2023185769A1
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WIPO (PCT)
Prior art keywords
information
qos
data packet
type
parameter
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PCT/CN2023/084182
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English (en)
Chinese (zh)
Inventor
周汉
王丹
魏鑫鹏
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华为技术有限公司
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Publication of WO2023185769A1 publication Critical patent/WO2023185769A1/fr

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Classifications

    • 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]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication, and in particular, to a communication method, communication device and communication system.
  • the quality of service quality of service, QoS
  • a terminal equipment user equipment, UE
  • PDU packet data unit
  • Each PDU session can be established (also It can be called configuring) one or more QoS flows that carry business data flows.
  • the QoS requirements of the business are reflected in the QoS parameters of the QoS flow that carries the business.
  • the QoS requirements of the same business do not always remain unchanged, so if the same QoS parameters are always used to schedule data mapped to the QoS flow package, it is easy to cause a waste of resources such as time and frequency or a shortage of resources such as time and frequency, affecting the user experience.
  • Embodiments of the present application provide a communication method, a communication device, and a communication system for dynamically adjusting the QoS parameters of the QoS flow to improve user experience.
  • a communication method including: a session management function network element obtaining first parameter information for a quality of service QoS flow, where the first parameter information includes: a first set of QoS parameters and a second set of QoS parameters of the QoS flow.
  • a group of QoS parameters corresponds to the first type of information
  • the second group of QoS parameters corresponds to the second type of information
  • the first type of information is used to indicate the first data packet scheduled using the first group of QoS parameters in the QoS flow
  • the second type of information is used to indicate the second data packet scheduled using the second set of QoS parameters in the QoS flow
  • the session management function network element sends the second parameter information for the QoS flow to the access network device, and the second parameter information includes the second One set of QoS parameters and a second set of QoS parameters.
  • the session management function network element configures two sets of QoS parameters of a QoS flow to the access network device, so that the access network device uses one set of QoS parameters to schedule data packets mapped to the QoS flow, Realize dynamic adjustment of QoS parameters of QoS flows to improve user experience.
  • the first data packet scheduled using the first set of QoS parameters and the second data packet scheduled using the second set of QoS parameters may be different types of data packets of the same data flow, or may be Are different types of data packets for different data streams.
  • the method further includes: the session management function network element sends configuration information for the QoS flow to the user plane function network element, where the configuration information includes the first type of information and/or the second type of information; sending The first type of information and the second type of information given to the user plane functional network element are used for: the user plane functional network element indicates the access network
  • the device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or uses the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the configuration information further includes: first identification information corresponding to the first type of information and/or second identification information corresponding to the second type of information, where the first identification information is different from the second identification information.
  • the first identification information and the second identification information are used for: the user plane functional network element instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or to use the second set of QoS parameters to schedule the first data packet mapped to the QoS flow. of the second data packet.
  • the second parameter information also includes: first identification information and/or second identification information. Its technical effect is the same as above.
  • the configuration information also includes: a first QoS parameter in the first group of QoS parameters and/or a second QoS parameter in the second group of QoS parameters, where the first QoS parameter and the second QoS parameter are Different values for the same QoS parameter.
  • the first QoS parameter and the second QoS parameter are used to instruct the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or to use the second set of QoS parameters to schedule the first data packet mapped to the QoS flow. of the second data packet.
  • the second parameter information also includes first type information and/or second type information.
  • the first type of information and the second type of information are used for: the user plane functional network element instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or to use the second set of QoS parameters to schedule the first data packet mapped to the QoS flow. of the second data packet.
  • the second parameter information also includes default parameter information, and the default parameter information is used to indicate which set of QoS parameters among the first set of QoS parameters and the second set of QoS parameters is the default set of QoS parameters.
  • the access network device uses a default set of QoS parameters to schedule data packets mapped to a QoS flow.
  • the device receives parameter change indication information from the user plane functional network element, it will switch a set of QoS parameters between the first set of QoS parameters and the second set of QoS parameters to schedule data packets mapped to the QoS flow.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the first type of information may refer to an I frame
  • the second type of information may refer to a P frame.
  • a communication method including: the user plane function network element receives configuration information for a quality of service QoS flow from the session management function network element, and the configuration information includes first type information and/or second type information. ; The first type of information is used to indicate the first data packet scheduled using the first set of QoS parameters in the QoS flow, and the second type information is used to indicate the second data packet scheduled using the second set of QoS parameters in the QoS flow; User The plane functional network element receives the data packet mapped to the QoS flow; the user plane functional network element sends parameter indication information for the QoS flow to the access network device according to the type information of the data packet mapped to the QoS flow. The parameter indication information is used to indicate The access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or uses the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the session management function network element configures two types of information for a QoS flow to the user plane function network element, and the user plane function network element identifies that the data packets mapped to the QoS flow are suitable for these two types of information.
  • Which set of QoS parameters among the two sets of QoS parameters corresponding to each type of information is notified to the access network device, so that the access network device uses a set of QoS parameters to schedule data packets mapped to the QoS flow, thereby realizing dynamic adjustment of the QoS flow.
  • QoS parameters to improve user experience.
  • the parameter indication information instructs the access network device to use the first set of QoS parameters to schedule the first data mapped to the QoS flow. packet; or, if the type information of the data packet mapped to the QoS flow is the second type of information, the parameter indication information instructs the access network device to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the user plane functional network element can instruct the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or to use the second set of QoS parameters. Schedule the second packet mapped to the QoS flow.
  • the configuration information also includes: first identification information corresponding to the first type of information (i.e., corresponding to the first group of QoS parameters) and/or corresponding to the second type of information (i.e., corresponding to the second group of QoS parameters). ) of the second identification information, the first identification information is different from the second identification information; if the type information of the data packet mapped to the QoS flow is the first type information, the parameter indication information is the first identification information; or, if the mapping The type information of the data packet to the QoS flow is the second type information, and the parameter indication information is the second identification information.
  • the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or uses the second set of QoS parameters to schedule the first data packet mapped to the QoS flow. Second data packet.
  • the parameter indication information is the first type of information; or, if the type information of the data packet mapped to the QoS flow is second type of information, then the parameter indication information is the second type of information. That is, the user plane functional network element indicates through type information: the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or uses the second set of QoS parameters to schedule the second data mapped to the QoS flow. Bag.
  • the configuration information also includes: a first QoS parameter in the first group of QoS parameters and/or a second QoS parameter in the second group of QoS parameters, where the first QoS parameter and the second QoS parameter are Different values of the same QoS parameter; if the type information of the data packet mapped to the QoS flow is the first type of information, the parameter indication information is the first QoS parameter; or if the type information of the data packet mapped to the QoS flow is the first type of information For the second type of information, the parameter indication information is the second QoS parameter.
  • the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or uses the second set of QoS parameters to schedule the first data packet mapped to QoS The second packet of the stream.
  • the parameter indication information is parameter change Instruction information.
  • Parameter change indication information is used to instruct the access network device to schedule the current data packet using another set of QoS parameters that is different from the previous set of QoS parameters.
  • the previous set of QoS parameters refers to a set of QoS parameters that schedule the previous data packet;
  • the former set of QoS parameters and the other set of QoS parameters belong to the first set of QoS parameters and the second set of QoS parameters. That is, the parameter change indication information is used to instruct the access network device to switch a set of QoS parameters between the first set of QoS parameters and the second set of QoS parameters to schedule data packets mapped to the QoS flow.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the first type of information may refer to an I frame
  • the second type of information may refer to a P frame.
  • the parameter indication information is carried in a header of a data packet mapped to the QoS flow.
  • a data packet mapped to the QoS flow.
  • general packet radio service tunneling protocol-user plane general packet radio service tunneling protocol user, GTP-U
  • GTP-U general packet radio service tunneling protocol user
  • a communication method including: the access network device receives second parameter information for a quality of service QoS flow from the session management function network element, where the second parameter information includes a first set of QoS parameters of the QoS flow. and the second set of QoS parameters; the access network device receives parameter indication information for the QoS flow from the user plane functional network element, and the parameter indication information is used to instruct the access network device to use the first set of QoS parameters to schedule the first parameter mapped to the QoS flow.
  • the data packet may use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow; the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or use the second set of QoS parameters according to the parameter indication information.
  • the QoS parameter schedule is mapped to the second packet of the QoS flow.
  • the session management function network element configures two sets of QoS parameters of a QoS flow to the access network device, and the user plane function network element identifies which set of QoS parameters the data packets mapped to the QoS flow are suitable for. , and notify the access network equipment, which uses a set of QoS parameters indicated by the user plane functional network element to schedule data packets mapped to the QoS flow, thereby dynamically adjusting the QoS parameters of the QoS flow to improve user experience.
  • the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or uses the second set of QoS parameters to schedule the second data mapped to the QoS flow according to the parameter indication information.
  • package including: if the parameter indication information indicates that the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, then the access network device uses the first set of QoS parameters to schedule the first data mapped to the QoS flow.
  • the access network device uses the second set of QoS parameters to schedule the second data packet mapped to the QoS flow, uses the second set of QoS parameters to schedule the second data mapped to the QoS flow. Bag.
  • the second parameter information also includes: first identification information corresponding to the first group of QoS parameters and/or second identification information corresponding to the second group of QoS parameters; the parameter indication information is the first identification information or second identification information; if the parameter indication information is the first identification information, the first identification information instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if the parameter indication information is second identification information, the second identification information instructs the access network device to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or uses the second set of QoS parameters to schedule the first data packet mapped to the QoS flow. Second data packet.
  • the second parameter information also includes first type information and/or second type information; the first type information is used to indicate data packets scheduled using the first set of QoS parameters in the QoS flow.
  • the second type of information is used to indicate data packets scheduled using the second set of QoS parameters in the QoS flow; the parameter indication information is the first type of information or the second type of information; if the parameter indication information is the first type of information, the first type of information Instruct the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if the parameter indication information is the second type of information, the second type of information instructs the access network device to use the second set of QoS parameters.
  • the user plane functional network element indicates through type information: the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or uses the second set of QoS parameters to schedule the second data mapped to the QoS flow. Bag.
  • the parameter indication information is the first QoS parameter in the first group of QoS parameters, or the second QoS parameter in the second group of QoS parameters, and the first QoS parameter and the second QoS parameter are the same Different values of the QoS parameters; if the parameter indication information is the first QoS parameter, the first QoS parameter instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if the parameter indication information for The second QoS parameter indicates that the access network device uses the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, or uses the second set of QoS parameters to schedule the first data packet mapped to QoS The second packet of the stream.
  • the parameter indication information is parameter change indication information
  • the parameter change indication information is used to instruct the access network device to use another set of QoS parameters that is different from the previous set of QoS parameters to schedule the current flow mapped to the QoS flow.
  • the previous set of QoS parameters refers to a set of QoS parameters of the previous data packet scheduled to be mapped to the QoS flow; the previous set of QoS parameters and the other set of QoS parameters belong to the first set of QoS parameters and the second set of QoS parameters ;
  • the access network device uses the first set of QoS parameters or the second set of QoS parameters to schedule data packets mapped to the QoS flow according to the parameter indication information, including: the access network device uses another set of QoS parameters to schedule the current data packet. That is, the parameter change indication information is used to instruct the access network device to switch a set of QoS parameters between the first set of QoS parameters and the second set of QoS parameters to schedule data packets mapped to the QoS flow.
  • the second parameter information also includes default parameter information, and the default parameter information is used to indicate which set of QoS parameters among the first set of QoS parameters and the second set of QoS parameters is the default set of QoS parameters.
  • the access network device uses a default set of QoS parameters to schedule data packets mapped to a QoS flow.
  • the device receives parameter change indication information from the user plane functional network element, it will switch a set of QoS parameters between the first set of QoS parameters and the second set of QoS parameters to schedule data packets mapped to the QoS flow.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the first type of information may refer to an I frame
  • the second type of information may refer to a P frame.
  • the parameter indication information is carried in a header of a data packet mapped to the QoS flow.
  • a header of a data packet mapped to the QoS flow For example, GTP-U header.
  • a fourth aspect provides a communication method, including: a core network element obtains first parameter information for a quality of service QoS flow, where the first parameter information includes a second value of a QoS parameter of the QoS flow; wherein, the second The value is used to indicate changing the QoS parameter from the first value to the second value. The first value is different from the second value; the core network element sends the first parameter information to the access network device to indicate the current When the preset conditions are met, the access network device uses the first value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the core network element can be a session management function network element, an application function network element, a user plane function network element, or a network element co-located with a user plane function network element and a mobile edge platform.
  • the embodiment of the present application provides a communication method.
  • the core network element instructs the access network device to use the second value of the QoS parameter to schedule data packets mapped to a QoS flow.
  • the second value of the QoS parameter is used.
  • a value is used to schedule data packets mapped to the QoS flow to dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • the first parameter information also includes the duration of the second value, or the second value of the QoS parameter is used to schedule the total data volume of data packets mapped to the QoS flow; the total data volume is The duration of the second value is obtained by combining the second value; satisfying the preset condition means that the access network device uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow to reach the duration.
  • the total data volume divided by the target bandwidth can be used to obtain the duration of the second value of the QoS parameter.
  • the first value of the QoS parameter is used to schedule the data packet mapped to the QoS flow.
  • the method further includes: the core network element sending monitoring indication information to the user plane functional network element, where the monitoring indication information is used to instruct the user plane functional network element to monitor the data packets of the QoS flow within a preset time
  • the user plane functional network element sends a message to the access network device.
  • Recovery indication information the recovery indication information is used to instruct the access network device to use the first value of the QoS parameter to schedule data packets mapped to the QoS flow; meeting the preset conditions means that the access network device receives the recovery indication information.
  • the core network element is not a user plane functional network element.
  • the core network element is a session management functional network element, so that after receiving the recovery instruction information from the user plane functional network element, the access network device adopts the third QoS parameter. A value schedules packets mapped to this QoS flow.
  • the method further includes: the core network element monitors the traffic of data packets of the QoS flow within a preset time; when the traffic of data packets of the QoS flow changes from above the threshold to below the threshold within the preset time, Within a limited time, or when it changes from below the threshold to above the threshold, the core network element sends recovery indication information to the access network device.
  • the recovery indication information is used to instruct the access network device to use the first value of the QoS parameter to schedule mapping to Data packets of the QoS flow; meeting the preset conditions means that the access network device receives the recovery indication information.
  • the core network element is the user plane functional network element. After receiving the recovery instruction information from the user plane functional network element, the access network device uses the first value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • the method further includes: the core network element receives parameter change request information from the user equipment, and the parameter change request information is used to request to change the QoS parameters of the QoS flow; the core network element obtains the parameter change request information according to the parameter change request information.
  • the second value of the QoS parameter can be an application function network element or a network element that is a combination of a user plane function network element and a mobile edge platform.
  • the parameter change request information includes an event that changes the QoS parameters of the QoS flow.
  • the core network element determines the second value of the QoS parameter (eg, target bandwidth) based on the event.
  • the parameter change request information includes the second value of the QoS parameter (eg, target bandwidth).
  • the first parameter information sent to the access network device is carried in a header of a data packet mapped to the QoS flow. For example, GTP-U header.
  • the fifth aspect provides a communication method, including: the access network device uses the first value of the QoS parameter of a quality of service QoS flow to schedule data packets mapped to the QoS flow; the access network device receives the first value for the QoS flow.
  • a parameter information, the first parameter information includes a second value of the QoS parameter; wherein the second value is used to indicate changing the QoS parameter from the first value to the second value, the first value and the second value Different; the access network device uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow; when the preset conditions are met, the access network device uses the first value of the QoS parameter to schedule data packets mapped to the QoS flow .
  • the embodiment of the present application provides a communication method.
  • the core network element instructs the access network device to use the second value of the QoS parameter to schedule data packets mapped to a QoS flow.
  • the second value of the QoS parameter is used.
  • a value is used to schedule data packets mapped to the QoS flow to dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • the first parameter information also includes: the duration of the second value, or the total data volume of the data packets mapped to the QoS flow scheduled using the second value of the QoS parameter; wherein, the total data volume The duration is obtained by combining the second value; satisfying the preset condition means that the access network device uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow to reach the duration.
  • the total data volume divided by the target bandwidth can be used to obtain the duration of the second value of the QoS parameter.
  • meeting the preset condition means that the access network device receives recovery indication information from the user plane functional network element, and the recovery indication information is used to instruct the access network device to adopt the first value of the QoS parameter. Schedule packets mapped to QoS flows. After receiving the recovery instruction information from the user plane functional network element, the access network device uses the first value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • the first parameter information is carried in a header of a data packet mapped to the QoS flow.
  • a header of a data packet mapped to the QoS flow For example, GTP-U header.
  • a communication device including a processor and a transceiver.
  • the transceiver is used to communicate with other communication devices.
  • the processor executes instructions, the method described in the first aspect and any of its embodiments is implement.
  • a communication device including a processor and a transceiver.
  • the transceiver is used to communicate with other communication devices.
  • the processor executes instructions, the method described in the second aspect and any of its embodiments is implement.
  • a communication device including a processor and a transceiver.
  • the transceiver is used to communicate with other communication devices.
  • the processor executes instructions, the method described in the third aspect and any of its embodiments is implement.
  • a communication device including a processor and a transceiver.
  • the transceiver is used to communicate with other communication devices.
  • the processor executes instructions, the method described in the fourth aspect and any of its implementation modes is implement.
  • a communication device including a processor and a transceiver.
  • the transceiver is used to communicate with other communication devices.
  • the processor executes instructions, the method described in the fifth aspect and any of its implementation modes is implement.
  • a communication device including a processing module and a transceiver module.
  • the processing module is used to obtain first parameter information for a quality of service QoS flow.
  • the transceiver module is configured to send second parameter information for the QoS flow to the access network device.
  • the transceiving module 202 is configured to send configuration information for the QoS flow to the user plane functional network element.
  • a communication device including a transceiver module.
  • the transceiver module is used to receive configuration information for a quality of service QoS flow from the session management function network element; receive data packets mapped to the QoS flow; and send QoS specific information to the access network device according to the type information of the data packet mapped to the QoS flow.
  • Stream parameter indication information is provided.
  • a communication device including a transceiver module.
  • the transceiver module is configured to receive second parameter information for a quality of service QoS flow from the session management functional network element; receive parameter indication information for the QoS flow from the user plane functional network element; and adopt the first set of QoS according to the parameter indication information.
  • the parameter schedules the first data packet mapped to the QoS flow or uses the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the parameter indication information indicates that the access network device uses the first set of QoS parameters If the parameter indication information indicates that the access network device uses the second set of QoS The parameters schedule the second data packet mapped to the QoS flow, and the transceiver module is configured to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • a communication device including a processing module and a transceiver module.
  • the processing module is configured to obtain first parameter information for a quality of service QoS flow.
  • the first parameter information includes a second value of the QoS parameter of the QoS flow; wherein the second value is used to indicate that the QoS parameter is changed from the first value. Change to the second value, the first value is different from the second value; the transceiver module is used to send the first parameter information to the access network device to instruct the access network device to use the QoS parameters when the preset conditions are met.
  • the second value schedules packets mapped to QoS flows.
  • the transceiver module is also used to send monitoring indication information to the user plane functional network element, where the monitoring indication information is used to instruct the user plane functional network element to monitor the traffic of data packets of the QoS flow within a preset time.
  • the user plane functional network element sends a recovery instruction to the access network device.
  • the recovery indication information is used to instruct the access network device to use the first value of the QoS parameter to schedule data packets mapped to the QoS flow; meeting the preset conditions means that the access network device receives the recovery indication information.
  • a communication device including a transceiver module.
  • the transceiver module is configured to use the first value of the QoS parameter of a quality of service QoS flow to schedule data packets mapped to the QoS flow; receive the first parameter information for the QoS flow; and use the second value of the QoS parameter to schedule the data packet mapped to the QoS flow. data packet; when the preset conditions are met, the first value of the QoS parameter is used to schedule the data packet mapped to the QoS flow.
  • a sixteenth aspect provides a communication system, including the communication device according to the sixth aspect, the communication device according to the seventh aspect, and the communication device according to the eighth aspect; or, including the communication device according to the ninth aspect;
  • a computer-readable storage medium includes instructions.
  • the communication device causes the communication device to execute as described in the first aspect and any embodiment thereof. or perform the method described in the second aspect and any embodiment thereof, or perform the method described in the third aspect and any embodiment thereof.
  • An eighteenth aspect provides a computer program product including instructions.
  • the communication device causes the communication device to execute the method described in the first aspect and any of its implementation modes, or to execute the method as described in any of the embodiments thereof.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flow chart 1 of a communication method provided by an embodiment of the present application.
  • Figure 3 is a schematic flow chart 2 of a communication method provided by an embodiment of the present application.
  • Figure 4 is a schematic flow chart 3 of a communication method provided by an embodiment of the present application.
  • Figure 5 is a schematic flow chart 4 of a communication method provided by an embodiment of the present application.
  • Figure 6 is a schematic flow chart 5 of a communication method provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a chip system provided by an embodiment of the present application.
  • the technical solutions of the embodiments of this application can be applied to various communication systems, such as: fifth generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency Frequency division duplex (FDD) system, LTE time division duplex (TDD), etc.
  • the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system.
  • the technical solutions of the embodiments of this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, and machine-to-machine (M2M) communication.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • M2M machine-to-machine
  • M2M machine-to-machine
  • M2M machine-to-machine
  • M2M machine-to-machine
  • M2M machine-to-
  • 5G network elements in the 5G system can use service-oriented interfaces or point-to-point interfaces to communicate.
  • the following describes 5G based on point-to-point interfaces in conjunction with (a) in Figure 1 and (b) in Figure 1.
  • FIG. 1 shows a schematic architectural diagram of a 5G system 100a applicable to the embodiment of the present application.
  • Figure 1 is a schematic diagram of the 5G network architecture based on point-to-point interface.
  • the network architecture may include but is not limited to the following network elements (also known as functional network elements, functional entities, nodes, devices, etc.):
  • UE User equipment
  • R radio access network
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • PCF policy control function
  • UDM unified data management
  • application function application function, AF
  • DN data network
  • NSSF network slice selection function
  • AUSF authentication server function
  • UDM capability exposure function
  • NEF network exposure function
  • a terminal that communicates with (R)AN can also be called terminal equipment (terminal equipment), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (mobile terminal, MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communications equipment, user agent or user device.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device, a vehicle-mounted device, etc. with wireless connectivity capabilities.
  • terminals can be: mobile phones, tablets, computers with wireless transceiver functions (such as laptops, handheld computers, etc.), mobile Internet devices (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical Terminals, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless Telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or connection Other processing equipment to wireless modems, vehicle-mounted equipment, wearable devices, terminal equipment in the 5G network or terminal equipment in the future evolved public land mobile communication network (public land mobile network, PLMN), etc.
  • mobile Internet devices mobile internet device, MID
  • virtual reality virtual reality
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in industrial control wireless terminals in self-driv
  • the terminal device may also be a terminal device in the IoT system.
  • IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-computer interconnection and object interconnection. IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrowband (NB) technology, for example.
  • NB narrowband
  • the terminal device can be any device that can access the network. Terminal equipment and access network equipment can communicate with each other using some air interface technology.
  • the user equipment can be used to act as a base station.
  • user equipment may act as a scheduling entity that provides sidelink signals between user equipments in V2X or D2D, etc.
  • V2X or D2D a scheduling entity that provides sidelink signals between user equipments in V2X or D2D, etc.
  • cell phones and cars use sidelink signals to communicate with each other.
  • Cell phones and smart home devices communicate between each other without having to relay communication signals through base stations.
  • (R)AN It is used to provide network access functions for authorized user equipment in a specific area, and can use transmission tunnels with different service qualities according to the level of user equipment, business needs, etc.
  • (R)AN can manage wireless resources, provide access services to user equipment, and then complete the forwarding of control signals and user equipment data between user equipment and the core network.
  • (R)AN can also be understood as a base station in a traditional network.
  • the access network device in the embodiment of the present application may be any communication device with wireless transceiver functions used to communicate with user equipment.
  • the access network equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller) , BSC), base transceiver station (BTS), home base station (home evolved Node B, HeNB, or home Node B, HNB), baseband unit (baseBand unit, BBU), wireless fidelity (wireless fidelity, WIFI ), access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • base station controller base station controller
  • BSC base transceiver station
  • home base station home evolved Node B, HeNB, or home Node B, HNB
  • 5G such as, NR, gNB in the system, or, transmission point (TRP or TP), one or a group of base stations (including multiple antennas) in the 5G system panel) antenna panel, or it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.
  • 5G such as, NR, gNB in the system, or, transmission point (TRP or TP), one or a group of base stations (including multiple antennas) in the 5G system panel) antenna panel
  • TRP or TP transmission point
  • BBU baseband unit
  • DU distributed unit
  • gNB may include centralized units (CUs) and DUs.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the access network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into access network equipment in the access network (radio access network, RAN), or the CU can be divided into access network equipment in the core network (core network, CN). This application does not Make limitations.
  • User plane network element used for packet routing and forwarding and quality of service (QoS) processing of user plane data.
  • QoS quality of service
  • the user plane network element can be a UPF network element, which can include intermediate user plane function (I-UPF) network element, anchor user Plane function (PDU Session anchor user plane function, PSA-UPF) network element.
  • I-UPF intermediate user plane function
  • PSA-UPF anchor user Plane function
  • user plane network elements can still be UPF network elements, or they can have other names, which are not limited in this application.
  • Data network used to provide a network for transmitting data.
  • the data network may still be a DN, or may have other names, which are not limited in this application.
  • the terminal device After the terminal device is connected to the network, it can establish a protocol data unit (PDU) session and access the DN through the PDU session. It can communicate with the application function network elements (application function network elements such as application function network elements) deployed in the DN. for application server) interaction. As shown in (a) in Figure 1, depending on the DN that the user accesses, the network can select the UPF of the access DN as the PDU Session Anchor (PSA) according to the network policy, and access it through the N6 interface of the PSA Application function network element.
  • PDU protocol data unit
  • PSA PDU Session Anchor
  • Access and mobility management network element Mainly used for mobility management and access management, etc., and can be used to implement other functions in the mobility management entity (MME) function except session management. For example, functions such as lawful interception and access authorization/authentication.
  • MME mobility management entity
  • the access management network element may be an AMF network element.
  • the access management network element can still be an AMF network element, or it can also have other names, which is not limited in this application.
  • Session management network element Mainly used for session management, network interconnection protocol (IP) address allocation and management of terminal equipment, selection of endpoints for manageable terminal equipment plane functions, policy control and charging function interfaces, and downlink Data notifications, etc.
  • IP network interconnection protocol
  • the session management network element can be an SMF network element, or It includes an intermediate session management function (I-SMF) network element and an anchor session management function (A-SMF) network element.
  • I-SMF intermediate session management function
  • A-SMF anchor session management function
  • the session management network element can still be an SMF network element, or it can also have other names, which is not limited in this application.
  • Policy control network element A unified policy framework used to guide network behavior and provide policy rule information for control plane functional network elements (such as AMF, SMF network elements, etc.).
  • the policy control network element may be a policy and charging rules function (PCRF) network element.
  • PCF policy and charging rules function
  • the policy control network element may be a PCF network element.
  • the policy control network element can still be a PCF network element, or it can also have other names, which is not limited in this application.
  • Data management network element used to process terminal device identification, access authentication, registration and mobility management, etc.
  • the data management network element can be a UDM network element or a UDR network element.
  • unified data management can still be UDM or UDR network elements, or it can also have other names, which are not limited in this application.
  • the UDM or UDR network element in the embodiment of this application may refer to the user database. Can exist as a single logical repository for storing user data.
  • Application function network elements can interact with the 5G system through application function network elements, and are used to access network open function network elements or interact with the policy framework for policy control, etc.
  • the application function network element can be an application function, AF network element.
  • the application function network element can still be an AF network element, or it can also have other names, which is not limited in this application.
  • Network slice selection network element It mainly includes the following functions: selecting a set of network slice instances for the UE, determining the allowed network slice selection assistance information (NSSAI), and determining the AMF set that can serve the UE.
  • NSSAI network slice selection assistance information
  • the network slicing selection network element may be an NSSF network element.
  • network slicing selection network elements can still be NSSF network elements, or they can also have other names, which are not limited in this application.
  • Authentication service network element used for authentication services, generating keys to implement two-way authentication of terminal devices, and supporting a unified authentication framework.
  • the authentication service network element may be an AUSF network element.
  • the authentication service function network element can still be an AUSF network element, or it can also have other names, which is not limited in this application.
  • Network opening function network element used to provide customized functions for network opening.
  • the network exposure function network element can be a network exposure function (NEF) network element.
  • NEF network exposure function
  • the network exposure function network element will still be It may be an NEF network element, or it may have other names, which are not limited in this application.
  • the 5G communication system can also open the capabilities supported by 5GC to external application function network elements through NEF network elements, such as providing small data transmission capabilities.
  • the above network elements or functions can be network elements in hardware devices or in Software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., cloud platform).
  • the above network elements or functions can be divided into one or more services.
  • instances of the above functions, or instances of services included in the above functions, or service instances that exist independently of network functions can be called service instances.
  • the AF network element may be abbreviated as AF
  • the NEF network element may be abbreviated as NEF
  • the AMF network element may be abbreviated as AMF. That is, the AF described later in this application can be replaced by the application function network element, the NEF can be replaced by the network opening function network element, and the AMF can be replaced by the access and mobility management network element.
  • the above network element or functional network element can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • the above network elements or functions can be divided into one or more services.
  • instances of the above functions, or instances of services included in the above functions, or service instances that exist independently of network functions can be called service instances.
  • N1 The interface between AMF and the terminal, which can be used to transmit QoS control rules to the terminal.
  • N2 The interface between AMF and RAN, which can be used to transmit wireless bearer control information from the core network side to the RAN.
  • N3 The interface between RAN and UPF, mainly used to transmit uplink and downlink user plane data between RAN and UPF.
  • N4 The interface between SMF and UPF can be used to transfer information between the control plane and the user plane, including controlling the delivery of user-oriented forwarding rules, QoS control rules, traffic statistics rules, etc., as well as the user plane Report information.
  • N5 The interface between AF and PCF, which can be used to issue application service requests and report network events.
  • N6 The interface between UPF and DN, used to transmit uplink and downlink user data flows between UPF and DN.
  • N7 The interface between PCF and SMF can be used to deliver protocol data unit (PDU) session granularity and business data flow granularity control policy.
  • PDU protocol data unit
  • N8 The interface between AMF and UDM can be used by AMF to obtain subscription data and authentication data related to access and mobility management from UDM, and for AMF to register current mobility management-related information of the terminal with UDM.
  • N9 The user plane interface between UPF and UPF, used to transmit uplink and downlink user data flows between UPF.
  • N10 The interface between SMF and UDM can be used for SMF to obtain session management-related contract data from UDM, and for SMF to register terminal current session-related information with UDM.
  • N11 The interface between SMF and AMF can be used to transfer PDU session tunnel information between RAN and UPF, transfer control messages sent to the terminal, transfer radio resource control information sent to RAN, etc.
  • N12 The interface between AMF and AUSF, which can be used by AMF to initiate the authentication process to AUSF, which can carry SUCI as the contract identification;
  • N13 The interface between UDM and AUSF, which can be used by AUSF to obtain the user authentication direction from UDM. quantity to perform the authentication process.
  • FIG. 1 shows a schematic architectural diagram of a 5G system 100b applicable to the embodiment of the present application.
  • FIG. 1 is a schematic diagram of the 5G network architecture based on service-oriented interfaces.
  • the network architecture may include but is not limited to the following network elements (also known as functional network elements, functional entities, nodes, devices, etc.):
  • UE UE, (R)AN, AMF network element, SMF network element, UPF network element, PCF network element, UDM network element, AF network element, DN, NSSF, AUSF, UDM, NEF network element, UDR, etc.
  • Nnssf, Nudr, Nausf, Nnef, Namf, Npcf, Nsmf, Nudm, and Naf are the service interfaces provided by the above-mentioned NSSF, UDR, AUSF, NEF, AMF, PCF, SMF, UDM, and AF respectively. , used to call the corresponding service-based operations.
  • N1, N2, N3, N4, and N6 are interface serial numbers. The meaning of these interface serial numbers can be found in the meaning defined in the 3rd generation partnership project (3GPP) standard protocol, which is not limited here.
  • network architecture to which the embodiments of the present application can be applied are only illustrative.
  • the network architecture applicable to the embodiments of the present application is not limited to this. Any network architecture that can realize the functions of each of the above network elements is applicable to this application. Application examples.
  • the AMF, SMF, UPF, PCF, NEF, etc. shown in (a) or (b) in Figure 1 can be understood as network elements used to implement different functions. For example, they can be combined as needed. Network slicing. These network elements can be independent devices, or they can be integrated into the same device to implement different functions, or they can be network elements in hardware devices, software functions running on dedicated hardware, or platforms (for example, cloud The virtualization function instantiated on the platform), this application does not limit the specific form of the above network elements.
  • the method provided by the embodiment of the present application can be applied to a 5G communication system, for example, the communication system shown in (a) or (b) in Figure 1.
  • the embodiments of the present application do not limit the scenarios in which this method can be applied.
  • it is also applicable to other network architectures including network elements that can implement corresponding functions.
  • Another example is the sixth generation communication (the 6th generation, 6G) system architecture, etc.
  • the names of each network element used in the above embodiments of the present application may maintain the same functions in future communication systems, but the names will change.
  • PDU session It is an association between the terminal device and the data network (DN), used to provide a PDU connection service.
  • QoS flow mechanism The current standard stipulates that QoS flow is the minimum QoS control granularity, and each QoS flow has a corresponding QoS configuration.
  • the QoS parameters included in the QoS configuration describe specific QoS requirements.
  • the QoS parameters mainly include:
  • QFI QoS flow index
  • 5G quality of service identifier 5G quality of service identifier
  • ARP allocation and retention priority
  • guaranteed flow bit rate guaranteed flow bit rate
  • GFBR guaranteed flow bit rate
  • MFBR maximum flow bit rate
  • QoS features include:
  • Resource type (resource type), priority level (PL), packet delay budget (PDB), packet error rate (packet error rate, PER), statistical period (averaging window) and/or maximum burst Send data volume (maximum data burst volume), etc.
  • resource types include: non-minimum guaranteed rate (non guaranteed bit rate, non-GRB), minimum guaranteed rate (guaranteed bit rate, GRB), delay-sensitive GRB (delay-critical GBR); the maximum burst data volume is Parameters unique to delay-sensitive GRB.
  • the PDB is used to indicate the upper limit of the transmission delay from the UE to the UPF.
  • the PDB for uplink and downlink data is the same.
  • PER represents the upper bound of packet loss rate.
  • PL is used to represent a PDB that cannot satisfy multiple QoS flows.
  • QoS requirements with high priority (for example, with a small PL value) are given priority. For example, in the case of congestion, when one or more QoS flows cannot satisfy all QoS When required, QoS flows can be prioritized based on priority levels.
  • 5QI is a scalar used to index to the corresponding 5G QoS characteristics.
  • 5QI is divided into standardized 5QI, preconfigured 5QI and dynamically allocated 5QI.
  • standardized 5QI there is a one-to-one correspondence with a set of standardized 5G QoS characteristic values; for preconfigured 5QI, the corresponding 5G QoS characteristic value is preconfigured on the access network device, and for dynamically allocated 5QI, the corresponding 5G QoS characteristic value
  • the core network equipment sends it to the access network equipment through the QoS profile.
  • QFI is used to uniquely identify different QoS flows within a PDU session.
  • ARP includes priority level, preemption capability and preempted capability.
  • GFBR represents the bit rate expected to be provided for guaranteed bit rate (GBR) QoS flows.
  • MFBR limits the bitrate provided to GBR QoS flows, that is, the maximum bitrate provided to GBR QoS flows. If this bit rate is exceeded, packets may be dropped.
  • the standard defines a part of 5QI QoS characteristic values, which can be used directly, and also allows operators and/or equipment manufacturers to allocate non-conflicting 5QI and preset corresponding QoS characteristic values for use in operator networks.
  • the 5G control plane network elements AMF and SMF deliver the QoS flow configuration to the UE, RAN and UPF.
  • QoS model In order to ensure the end-to-end service quality of the business, a QoS model based on QoS flow (flow) is proposed. This QoS model supports QoS flows with guaranteed bit rates (i.e., GBR QoS flows) and QoS flows without guaranteed bit rates (i.e., non-GBR (non-GBR) QoS flows). Data packets using the same QoS flow control receive the same transmission processing (such as scheduling, admission threshold, etc.). For a terminal device, you can establish an or Or multiple data connection sessions (such as PDU sessions); each data connection session can transmit data flows corresponding to one or more QoS flows. Each QoS flow is identified by a QoS flow identifier (QFI). QFI uniquely identifies a QoS flow in the same data connection session. In addition, each QoS flow corresponds to a data radio bearer (DRB), and one DRB can correspond to one or more QoS flows.
  • DRB data radio bearer
  • a QoS flow is a GBR QoS flow or a Non-GBR QoS flow is determined by the corresponding QoS file (QoS profile).
  • the corresponding QoS file contains the following QoS parameters: 5QI, ARP, GFBR, MFBR, and/or QNC. According to whether the QoS file contains QNC, the GBR QoS flow is determined as a GRB QoS flow that requires notification control (notification control) and a GBR QoS flow that does not require notification control.
  • the access network element detects that the corresponding QoS flow resources cannot be satisfied, the access network device notifies the session management function SMF of the event (that is, the QoS flow resources corresponding to the GBR QoS flow cannot be satisfied). satisfy). Further SMF can initiate QoS flow deletion or QoS flow modification process (for example, modify the QoS parameters of the QoS flow).
  • the corresponding QoS file contains the following QoS parameters: 5QI, ARP and/or RQA.
  • PL Indicates the priority of scheduling resources in the QoS flow. It can be used to identify the QoS flow corresponding to the data flow of the same UE, or can also be used to identify the QoS flow corresponding to the data flow of different UEs. In the case of congestion, the current resources cannot support one or more QoS flows that meet the corresponding QoS requirements (such as PDB, PER, etc.). PL is used to select which QoS flows corresponding to the QoS requirements should be prioritized.
  • GTP-U tunnel During the PDU session establishment process, the connection between RAN and UPF will use the GTP-U tunnel, which will come from Data on the UE side or data sent to the UE side is added to the tunnel for transmission.
  • Tunnel Endpoint Identifier It is the tunnel endpoint of the GTP-U protocol and can uniquely determine a tunnel between two network elements.
  • QoE Quality of Experience
  • I intra-coded picture
  • P Predictive-coded picture
  • each QoS flow is only represented by a set of QoS parameters.
  • a QoS flow has only one 5QI and other parameters, that is, there is only one scheduling priority. When the network is blocked and other situations occur, it cannot be guaranteed.
  • different data streams will not be scheduled differentially according to their importance to QoE. For example, how to prioritize data streams that are highly important to QoE to meet the needs of these data stream transmissions? After meeting the QoS requirements, data flows with low importance to QoE are then scheduled to achieve differentiated scheduling of data packets of different types of data blocks corresponding to the same QoS flow.
  • this application provides a communication method by configuring multiple scheduling priorities for different types of data packets mapped by a QoS flow, in order to achieve different types of data blocks corresponding to a single QoS flow. Differential scheduling of data packets.
  • the embodiments shown below do not specifically limit the specific structure of the execution body of the method provided by the embodiment of the present application, as long as it can be provided according to the embodiment of the present application by running a program that records the code of the method provided by the embodiment of the present application. It suffices to communicate by a method.
  • the execution subject of the method provided by the embodiment of the present application may be the core network device, or a functional module in the core network device that can call the program and execute the program.
  • for indicating can be understood as “enabling”, and “enabling” can include direct enabling and indirect enabling.
  • enabling can include direct enabling and indirect enabling.
  • the information enabled by the information is called to-be-enabled information.
  • the to-be-enabled information can be directly enabled, such as to-be-enabled information.
  • the enabling information itself or the index of the information to be enabled, etc.
  • the information to be enabled can also be indirectly enabled by enabling other information, where there is an association relationship between the other information and the information to be enabled. It is also possible to enable only a part of the information to be enabled, while other parts of the information to be enabled are known or agreed in advance.
  • the enabling of specific information can also be achieved by means of a pre-agreed (for example, protocol stipulated) arrangement order of each piece of information, thereby reducing the enabling overhead to a certain extent.
  • the common parts of each information can also be identified and enabled uniformly to reduce the enabling overhead caused by enabling the same information individually.
  • preconfigured may include predefined, for example, protocol definitions.
  • pre-definition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device (for example, including each network element). This application does not limit its specific implementation method.
  • the “save” involved in the embodiments of this application may refer to saving in one or more memories.
  • the one or more memories may be provided separately, or may be integrated in an encoder or decoder, a processor, or a communication device.
  • the one or more memories may also be partially provided separately and partially integrated in the decoder, processor, or communication device.
  • the type of memory can be any form of storage medium, and this application is not limited thereto.
  • the "protocol” involved in the embodiments of this application may refer to standard protocols in the communication field, which may include, for example, 5G protocols, new radio (NR) protocols, and related protocols applied in future communication systems. There are no restrictions on this application.
  • the access network equipment is RAN
  • the mobility management function network element is AMF
  • the application The functional network element is AF
  • the session management functional network element is SMF
  • the user plane functional network element is UPF
  • the terminal is UE.
  • the data packets transmitted by the QoS stream of the video service include I frames and P frames, and I frames and P frames are transmitted alternately.
  • I frame is an intra-coded image frame. It is an independent frame that carries all its own information. It can be decoded independently without referring to other images. It is a key frame.
  • P frame is a forward prediction encoded image frame, which represents the difference between the current frame image and the previous frame image. When decoding, the previous frame image needs to be superimposed on the difference between the current frame image and the previous frame image to generate the current frame image. Therefore, the data amount of I frame is greater than the data amount of P frame, and the QoS requirements of I frame and P frame are different.
  • the QoS parameters of the QoS flow are set according to the QoS requirements of the I frame, it is easy to cause a waste of time and frequency resources when transmitting the P frame; if the QoS parameters of the QoS flow are set according to the QoS requirements of the P frame, it is easy to cause a waste of time and frequency when transmitting the I frame. Insufficient resources such as time and frequency cause problems such as increased transmission delays and packet loss rates, thus reducing user experience.
  • inventions of the present application provide a communication method.
  • the SMF configures one or more sets of QoS parameters (such as two sets of QoS parameters) of a QoS flow to the RAN, and the UPF identifies which group the data packet of the QoS flow applies to.
  • the QoS parameters are notified to the RAN.
  • the RAN uses a set of QoS parameters indicated by the UPF to schedule data packets mapped to the QoS flow to dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:
  • the AF sends the first parameter information for a QoS flow to the PCF.
  • the AF may determine the first parameter information of the QoS flow based on information such as the service type of the data flow to which the data packet belongs.
  • the first parameter information includes: a first set of QoS parameters and a second set of QoS parameters of the QoS flow.
  • the first set of QoS parameters corresponds to the first type of information
  • the second set of QoS parameters corresponds to the second type of information.
  • the first set of QoS parameters is different from the second set of QoS parameters
  • the first type of information is different from the second type of information. That is to say, data packets mapped to the same QoS flow can be scheduled using the first set of QoS parameters or the second set of QoS parameters.
  • the first type of information involved in this application indicates the type of the first data packet of a QoS flow
  • the second type of information indicates the type of the second data packet of a QoS flow.
  • the first type of information and/or the second type of information is carried in a data packet of a QoS flow, and is used by UPF to identify the type information of the data packet as the first type of information or the second type of information, thereby instructing the RAN to adopt the first set of QoS.
  • Parameter scheduling is used to schedule the first data packet mapped to the QoS flow or to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the first type of information is used to indicate the first data packet scheduled using the first set of QoS parameters in the QoS flow
  • the second type information is used to indicate the second data scheduled using the second set of QoS parameters in the QoS flow. Bag.
  • the first data packet scheduled using the first set of QoS parameters and the second data packet scheduled using the second set of QoS parameters may be different types of data packets of the same data flow, or may be different types of data of different data flows. Bag. This application is not limited.
  • the type information of the data packet mapped to the QoS flow may be the frame type of the data packet, the PDU set type of the data packet, or other information. Taking the first type of information and the second type of information as the frame type as an example, if the UPF identifies that the frame type of the data packet mapped to a QoS flow from the AS is the first frame type, the UPF instructs the RAN to use the first set of QoS parameter scheduling The first data packet mapped to the QoS flow; if the UPF identifies the frame type of the data packet mapped to a QoS flow from the AS as the second frame type, the UPF instructs the RAN to use the second set of QoS parameters to schedule mapping to the QoS flow The second data packet, wherein the first frame type is different from the second frame type.
  • the frame type of the data packet mapped to a QoS stream (such as a video stream data packet) issued by the AS may include intra-coded images.
  • I frames and P frames are delivered alternately according to certain rules, such as IPPPIPPP, that is, there is an I frame between every three P frames.
  • IPPPIPPP IP packet protocol
  • the UPF identifies that the frame type of a data packet from the AS that is mapped to a QoS flow is an I frame
  • the UPF instructs the RAN to use the first set of QoS parameters to schedule the mapping.
  • this application does not limit the first parameter information of a QoS flow to include only the first set of QoS parameters and the second set of QoS parameters, and may also include more sets of QoS parameters.
  • this application does not limit the first parameter information of a QoS flow to only include first type information and second type information, but may also include type information corresponding to more sets of QoS parameters.
  • this application does not limit the configuration information and second parameter information of a QoS flow to include only the first set of QoS parameters and the second set of QoS parameters. It also includes two sets of QoS parameters. More sets of QoS parameters may be included.
  • this application does not limit the configuration information and second parameter information of a QoS flow to only include first type information and second type information. It may also include more sets of type information corresponding to QoS parameters. .
  • step S101 is optional.
  • PCF generates policy and charging control rule (PCC rule) and sends PCC rule to SMF.
  • PCC rule policy and charging control rule
  • the PCF receives the first parameter information of a QoS flow from the AF, the PCF generates the corresponding PCC rule based on the first parameter information of the QoS flow. If the PCF does not receive the first parameter information of the QoS flow from the AF, the PCF can generate a PCC rule based on the UE's subscription data, PCF's local configuration and/or operator's policy and other information. Finally, a PCC rule includes the first parameter information of the QoS flow. For a description of the first parameter information, please refer to the description of step 101.
  • the SMF sends the configuration information for the QoS flow to the UPF.
  • the configuration information is used to instruct the UPF: determine the type information of the data packet of the QoS flow, and send parameter indication information for the QoS flow to the access network device according to the type information of the data packet of the QoS flow.
  • the parameter indication information is used to instruct the RAN to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow or to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the data packet here can refer to the current data packet received, or the current data packet and subsequent data packets, and for the scenario where the data packet refers to the current data packet and subsequent data packets, it is not necessary for each data packet
  • the indication information is carried in the packet, thereby reducing the overhead of the indication information.
  • the indication information is carried only in the first data packet of each type of information, or the indication information is carried in every fixed number of data packets.
  • the parameter indication information may be encapsulated in a header (eg, GTP-U header) of the data packet mapped to the QoS flow.
  • the parameter indication information instructs the RAN to use the first set of QoS parameters to schedule the data packet mapped to the QoS flow; If the type information of the data packet is the second type of information, the parameter indication information instructs the RAN to use the second set of QoS parameters to schedule the data packet mapped to the QoS flow.
  • the configuration information includes at least first type information and/or second type information.
  • the UPF When the UPF receives a data packet mapped to a QoS flow from the AS: If the UPF determines that the type information of the data packet mapped to the QoS flow is the first type of information, the parameter indication information is the first type of information to instruct the RAN to use the first type of information. A set of QoS parameters is scheduled to map to the first packet of this QoS flow. If the UPF determines that the type information of the data packet mapped to the QoS flow is the second type information, the UPF sends the second type information to the RAN to instruct the RAN to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow. .
  • the parameter indication information is a parameter Change indication information.
  • the parameter change indication information is used to instruct the RAN to change the set of QoS parameters used when scheduling data packets mapped to the QoS flow.
  • the parameter change indication information is used to instruct the RAN to use another set of QoS parameters that is different from the previous set of QoS parameters.
  • a group of QoS parameters schedules the current data packet, where the previous group of QoS parameters refers to a group of QoS parameters that schedules the previous data packet mapped to the QoS flow, and the previous group of QoS parameters and the other group of QoS parameters belong to the first group of QoS parameters.
  • the parameter change indication information indicates a set of QoS adopted by the RAN when scheduling the data packet mapped to the QoS flow.
  • the parameters change from the first set of QoS parameters to the second set of QoS parameters; when the frame type of the data packet mapped to the QoS flow changes from the second frame type to the first frame type, the parameter change indication information indicates that the RAN is scheduling the mapping to A set of QoS parameters used in the data packets of the QoS flow is changed from the second set of QoS parameters to the first set of QoS parameters.
  • the configuration information may also include first identification information corresponding to the first type of information (i.e., corresponding to the first set of QoS parameters) and/or corresponding to the second type of information (i.e., (corresponding to the second group of QoS parameters) second identification information, wherein the first identification information is different from the second identification information.
  • first identification information corresponding to the first type of information (i.e., corresponding to the first set of QoS parameters) and/or corresponding to the second type of information (i.e., (corresponding to the second group of QoS parameters) second identification information, wherein the first identification information is different from the second identification information.
  • the UPF When the UPF receives a data packet mapped to a QoS flow from the AS: If the UPF determines that the type information of the data packet of the QoS flow is the first type of information, the parameter indication information is the first identification information to instruct the RAN to use the first group The QoS parameter schedule is mapped to the first packet of the QoS flow. If the UPF determines that the type information of the data packet mapped to the QoS flow is the second type of information, the parameter indication information is the second identification information to instruct the RAN to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow. .
  • the configuration information may also include the first QoS parameter in the first group of QoS parameters, and/or the second QoS parameter in the second group of QoS parameters, wherein the The first QoS parameter and the second QoS parameter are different values of the same QoS parameter (such as scheduling priority, bit rate, etc.), where the same QoS parameter may refer to one or more QoS parameters.
  • the parameter indication information is the first QoS parameter, used to instruct the RAN to adopt The first set of QoS parameters is scheduled to be mapped to the first packet of the QoS flow. If the UPF determines that the type information of the data packet mapped to the QoS flow is the second type of information, the parameter indication information is the second QoS parameter, used to instruct the RAN to use the second set of QoS parameters to schedule the second data mapped to the QoS flow. Bag.
  • the method by which the UPF determines that the type information of the data packet mapped to the QoS flow is the first type of information or the second type of information may include but is not limited to: the AS directly sends the data packet mapped to a QoS flow. Indicates that the type information of the data packet mapped to the QoS flow is the first type information or the second type information; or, the UPF determines the data packet mapped to the QoS flow based on the traffic (for example, the size of the data packet) of the QoS flow.
  • the type information of the data packet of the flow is the first type information or the second type information. For example, the traffic of the I frame is greater than the traffic of the P frame.
  • UPF receives the data packet traffic mapped to a QoS flow from the AS in the first time period The traffic within is greater than the threshold, then UPF can determine that the frame type of the data packet mapped to the QoS flow at this time is an I frame (that is, the type information is the first type of information), otherwise UPF can determine that the data mapped to the QoS flow at this time
  • the frame type of the packet is P frame (that is, the type information is the second type information).
  • the SMF sends the second parameter information for the QoS flow to the RAN.
  • the second parameter information includes the first set of QoS parameters and the second set of QoS parameters of a QoS flow, and can be applied to at least the following two scenarios: the scenario where the parameter indication information is the first QoS parameter or the second QoS parameter, or the parameter indication
  • the information is a scenario in which parameter change indication information is provided.
  • the RAN when the RAN receives from the UPF a data packet carrying the first QoS parameter that is mapped to a QoS flow, the RAN uses the first set of QoS parameters to schedule the mapping to Packets for this QoS flow.
  • the RAN uses the second set of QoS parameters to schedule the data packet mapped to the QoS flow.
  • the RAN also determines which set of QoS parameters among the first set of QoS parameters and the second set of QoS parameters is the default set of QoS parameters. For example, the RAN may use the first set of QoS parameters in the second parameter information as a default set of QoS parameters, or the second parameter information may also include default parameter information indicating the first set of QoS parameters and Which set of QoS parameters in the second set of QoS parameters is the default set of QoS parameters. In this way, before the RAN receives parameter change indication information from UPF for the first time, it uses a default set of QoS parameters to schedule data packets mapped to a QoS flow.
  • a set of QoS parameters will be switched between the first set of QoS parameters and the second set of QoS parameters to schedule the data packets mapped to the QoS flow. That is to say, the previous data packet received by the RAN and mapped to a QoS flow is scheduled using the previous set of QoS parameters. After receiving the parameter change indication information, the received data packet mapped to the QoS flow is scheduled using another set of QoS parameters. current packet.
  • the second parameter information includes in addition to the first set of QoS parameters and In addition to the second set of QoS parameters, it also includes first type information corresponding to the first set of QoS parameters and/or second type information corresponding to the second set of QoS parameters.
  • the RAN When the RAN receives a data packet carrying the first type of information from the UPF that is mapped to a QoS flow, the RAN uses the first set of QoS parameters to schedule the data packet mapped to the QoS flow; when the RAN receives a mapping from the UPF that carries the second type of information When receiving a data packet of a QoS flow, the RAN uses the second set of QoS parameters to schedule the data packet mapped to the QoS flow.
  • the second parameter information includes in addition to the first group of QoS parameters.
  • it also includes first identification information corresponding to the first group of QoS parameters and/or second identification information corresponding to the second group of QoS parameters.
  • the RAN uses the first set of QoS parameters to schedule the data packet that is mapped to the QoS flow; when the RAN receives the mapping from the UPF that carries the second identification information
  • the RAN uses the second set of QoS parameters to schedule the data packet mapped to the QoS flow.
  • the second parameter information may be located in the same or different QoS files (profiles).
  • the first set of QoS parameters, the first type information corresponding to the first set of QoS parameters and/or the first identification information may be located in one In the QoS files (profiles)
  • the second set of QoS parameters, the second type of information corresponding to the second set of QoS parameters, and/or the second identification information may be located in another QoS file (profiles).
  • the information is all located in the same QoS file (profile).
  • step S104 may be executed first and then step S103, or step S103 may be executed first and then step S104.
  • the RAN sends a response message to the SMF, the SMF sends a response message to the PCF, and the PCF sends a response message to the AF.
  • the AS sends the data packet mapped to the QoS flow to the UPF.
  • the UPF sends the data packet mapped to the QoS flow to the RAN, and sends parameter indication information for the QoS flow.
  • the parameter indication information may be carried in a data packet mapped to the QoS flow (for example, the parameter indication information is encapsulated in a GTP-U packet header). For details, refer to the description about UPF in step S103, which will not be described again here.
  • the RAN uses the first set of QoS parameters or the second set of QoS parameters to schedule data packets mapped to the QoS flow according to the parameter indication information, so as to send the data packets mapped to the QoS flow to the UE.
  • step S104 For details, refer to the description about the RAN in step S104, which will not be described again here.
  • the SMF configures two sets of QoS parameters of a QoS flow to the RAN.
  • the UPF identifies which set of QoS parameters the data packets mapped to the QoS flow are applicable to, and notifies the RAN.
  • the RAN adopts the QoS parameters indicated by the UPF.
  • a set of QoS parameters schedules data packets mapped to the QoS flow to dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • the QoS requirements of the same business do not always remain unchanged.
  • XR extended reality
  • a user wears a virtual reality (VR) device to experience VR live broadcast or VR video
  • the user turns his head and causes the field of view (FoV) to change.
  • the network side needs to send new data to the VR device.
  • the downlink data corresponding to FoV will cause a large increase in downlink data in a short period of time, which can easily cause problems such as increased transmission delay and packet loss rate, thereby reducing user experience.
  • the subsequent traffic will return to normal levels.
  • the subsequent scheduling is still based on the second value of the QoS parameter, it will cause a waste of resources such as time and frequency. Therefore, it is necessary to provide a recovery mechanism so that the RAN can restore the QoS parameters to the first value of the QoS parameters, thereby making full use of time and frequency resources.
  • the embodiment of the present application provides a communication method.
  • the core network element instructs the RAN to use the second value of the QoS parameter to schedule the mapping to the QoS parameter.
  • the first value of the QoS parameter is used to schedule and map to the data packet of the QoS flow, thereby dynamically adjusting the QoS parameters of the QoS flow to improve user experience.
  • the RAN uses the first value of the QoS parameter of a QoS flow to schedule data packets mapped to the QoS flow.
  • the core network element receives the parameter change request information from the UE, and obtains the second value of the QoS parameter according to the parameter change request information.
  • the parameter change request information is used to request to change the QoS parameters of the QoS flow.
  • the parameter change request information includes an event that changes the QoS parameters of the QoS flow, and the core network element determines the second value of the QoS parameter (eg, target bandwidth) based on the event.
  • the parameter change request information may include a second value of the QoS parameter (eg, target bandwidth).
  • the second value of the QoS parameter is used to instruct the RAN to change the QoS parameter of the QoS flow from the first value to the second value.
  • the core network element can be AF, UPF/mobile edge platform (MEP) (the network element jointly established by UPF and MEP).
  • UPF UPF/mobile edge platform
  • the core network element obtains the first parameter information for the QoS flow.
  • the first parameter information includes the second value of the QoS parameter.
  • the first parameter information also includes: the duration of the second value of the QoS parameter, or the total data volume of the data packets mapped to a QoS flow using the second value of the QoS parameter; wherein, The total data amount is used to combine with the second value of the QoS parameter to obtain the duration of the second value of the QoS parameter. For example, the total data amount is divided by the target bandwidth to obtain the duration of the second value of the QoS parameter.
  • the core network elements can be AF, SMF, UPF, or UPF/MEP.
  • the core network element can receive the first parameter information for the QoS flow from the AF.
  • the core network element can generate the first parameter information for the QoS flow by itself.
  • the core network element sends the first parameter information to the RAN to indicate that when the preset conditions are met, the RAN uses the first value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the RAN receives the first parameter information.
  • the first parameter information may be forwarded to the RAN via other core network elements.
  • the core network element can also send monitoring instruction information to UPF, where the monitoring instruction information is used to instruct UPF to monitor within a preset time
  • the traffic of data packets mapped to the QoS flow when the traffic of data packets mapped to the QoS flow changes from above the threshold to below the threshold within a preset time, or from below the threshold to above the threshold Within a time limit, the UPF sends recovery indication information to the RAN.
  • the recovery indication information is used to instruct the RAN to use the first value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the core network element monitors the traffic of the data packets mapped to the QoS flow within the preset time; when the traffic of the data packets mapped to the QoS flow within the preset time is higher than When the threshold becomes lower than the threshold, or when it changes from lower than the threshold to higher than the threshold, the core network element sends recovery indication information to the RAN.
  • the core network element calculates the preset time and the threshold in proportion (for example, the bandwidth is 1Gbps, The preset time can be set to 5ms, and the threshold is 5M), and the preset time can be set to be less than the time for sending one frame of data packets.
  • satisfying the preset condition means that the RAN uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow to reach the duration.
  • satisfying the preset condition means: the RAN receives recovery indication information from the UPF.
  • the first parameter information may be carried in a packet header (eg, GTP-U packet header) of a data packet mapped to the QoS flow.
  • a packet header eg, GTP-U packet header
  • the RAN uses the second value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • RAN can pass the five-tuple of data packets (source IP address, source port, destination IP address, destination port and Transport layer protocol) to determine whether the received data packet belongs to a QoS flow, thereby changing the QoS parameters of the data packet scheduled to be mapped to this QoS flow.
  • the RAN uses the first value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • the core network element instructs the RAN to use the second value of the QoS parameter to schedule the data packets mapped to the QoS flow.
  • the RAN uses the first value of the QoS parameter to schedule.
  • the data packets mapped to the QoS flow can dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • the embodiment of the present application provides a communication method.
  • the SMF instructs the RAN to use the second value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the first value of the QoS parameter is used to schedule data packets mapped to the QoS flow to dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:
  • the RAN uses the first value of the QoS parameter of the QoS flow to schedule data packets mapped to the QoS flow.
  • the UE sends parameter change request information to the AF.
  • step S202 Regarding the parameter change request information, refer to step S202, which will not be repeated here.
  • the user when the user wears a VR device to experience VR live broadcast or VR video, the user turns his head and causes the FoV to change.
  • the UE requests the AF for the downlink data corresponding to the new FoV.
  • the downlink data corresponding to the new FoV will generate bursts.
  • its QoS requirements (such as target bandwidth) need to be changed accordingly, otherwise it will easily cause problems such as increased transmission delay and increased packet loss rate.
  • the UE can send parameter change request information to the AF through the application layer to request to change the QoS parameters of the QoS flow.
  • the AF sends the first parameter information mapped to the QoS flow to the PCF.
  • step S203 Regarding the first parameter information, refer to step S203, which will not be repeated here.
  • the PCF generates a policy and charging control rule (PCC rule) based on the first parameter information, and sends the PCC rule to the SMF.
  • PCC rule policy and charging control rule
  • the PCC rule includes the first parameter information.
  • the SMF sends the first parameter information to the RAN.
  • the SMF sends monitoring instruction information to the UPF.
  • the monitoring instruction information may instruct the UPF to send a recovery instruction to the RAN when the traffic of data packets mapped to the QoS flow changes from above the threshold to below the threshold within a preset time. information.
  • step S204 Regarding the monitoring instruction information and recovery instruction information, reference may be made to step S204, which will not be repeated here.
  • step S306 is optional.
  • step S306 may be performed.
  • the first parameter information includes the duration of the second value of the QoS parameter or the total data amount of the data packets mapped to a QoS flow scheduled using the second value of the QoS parameter.
  • the RAN sends a response message to the SMF, the SMF sends a response message to the PCF, and the PCF sends a response message to the AF.
  • the AS sends the data packet mapped to the QoS flow to the UPF.
  • the UPF sends the data packet mapped to the QoS flow to the RAN.
  • the UPF If the UPF receives the monitoring indication information from the SMF, the UPF starts monitoring the traffic of data packets mapped to the QoS flow within the preset time.
  • UPF sends recovery indication information to the RAN to recover.
  • the indication information is used to instruct the RAN to use the first value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the recovery indication information instructs the RAN to use the first value of the QoS parameter to schedule the mapping to Packets for this QoS flow.
  • the RAN uses the second value of the QoS parameter to schedule the data packet mapped to the QoS flow, so as to send the data packet data mapped to the QoS flow to the UE.
  • the RAN needs to store the first value of the QoS parameter before using the second value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the RAN uses the first value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • step S302 when the user turns around, a burst of large bandwidth traffic will only be generated in a short period of time, and subsequent traffic will After returning to the normal level, if the subsequent scheduling is still based on the second value of the QoS parameter, it will cause a waste of resources such as time and frequency. Therefore, it is necessary to provide a recovery mechanism so that the RAN can restore the QoS parameters to the first value of the QoS parameters, thereby making full use of time and frequency resources.
  • step S204 Regarding satisfying the preset condition, refer to step S204, which will not be described again here.
  • the RAN uses the second value of the QoS parameter to schedule the data packets mapped to the QoS flow to reach the duration in the first parameter information
  • the RAN uses the first value of the QoS parameter to schedule the mapping to the QoS flow.
  • QoS flow packets After the RAN uses the second value of the QoS parameter to schedule the data packets mapped to the QoS flow to reach the duration in the first parameter information, the RAN uses the first value of the QoS parameter to schedule the mapping to the QoS flow.
  • the RAN uses the first value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the embodiment of the present application provides a communication method.
  • the UPF/MEP instructs the RAN to use the second value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the preset is satisfied
  • the first value of the QoS parameter is used to schedule the data packets mapped to the QoS flow, thereby dynamically adjusting the QoS parameters of the QoS flow to improve user experience.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:
  • the RAN uses the first value of the QoS parameter of a QoS flow to schedule data packets mapped to the QoS flow.
  • the UE sends parameter change request information to the UPF/MEP.
  • step S202 Regarding the parameter change request information, refer to step S202, which will not be repeated here.
  • the user when the user wears a VR device to experience VR live broadcast or VR video, the user turns his head and causes the FoV to change.
  • the UE requests the downlink data corresponding to the new FoV from the UPF/MEP, and the downlink data corresponding to the new FoV will be generated.
  • its QoS requirements (such as bandwidth) need to change accordingly. Otherwise, it is easy to cause problems such as increased transmission delay and increased packet loss rate.
  • the UE can send indication information to the UPF/MEP through the application layer to request to change the QoS parameters of the QoS flow.
  • the UPF/MEP sends the first parameter information for the QoS flow to the RAN.
  • step S203 For the first parameter information, refer to step S203, which will not be described again here.
  • the first parameter information can be carried in a new GTP-U message and sent to the RAN via the user plane associated signaling.
  • the GTP-U message can be named New QoS request (New QoS request) or other names. This There are no restrictions on application.
  • the UPF/MEP sends the data packet mapped to the QoS flow to the RAN.
  • the UPF/MEP monitors the preset time The flow of packets mapped to this QoS flow.
  • UPF/MEP sends recovery indication information to the RAN , the recovery indication information is used to instruct the RAN to use the first value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • the recovery indication information instructs the RAN to use the first value of the QoS parameter to schedule mapping to the QoS flow packets.
  • the RAN uses the second value of the QoS parameter to schedule the data packet mapped to the QoS flow, so as to send the data packet data mapped to the QoS flow to the UE.
  • the RAN needs to store the first value of the QoS parameter before using the second value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the RAN uses the first value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • step S311 For this step, refer to step S311, which will not be described again here.
  • the embodiment of the present application provides a communication method.
  • the UPF instructs the RAN to use the second value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the preset conditions are met , using the first value of the QoS parameter to schedule data packets mapped to the QoS flow, to dynamically adjust the QoS parameters of the QoS flow to improve user experience.
  • FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:
  • the RAN uses the first value of the QoS parameter of a QoS flow to schedule data packets mapped to the QoS flow.
  • the UE sends parameter change request information to the AF.
  • step S202 Regarding the parameter change request information, refer to step S202, which will not be repeated here.
  • the AF sends the first parameter information for the QoS flow to the UPF.
  • step S203 For the first parameter information, refer to step S203, which will not be described again here.
  • the UPF sends the first parameter information to the RAN.
  • step S403 For this step, refer to step S403, which will not be described again.
  • the AS sends the data packet mapped to the QoS flow to the UPF.
  • the UPF sends the data packet mapped to the QoS flow to the RAN.
  • step S404 For this step, refer to step S404, which will not be described again here.
  • the RAN uses the second value of the QoS parameter to schedule the data packet mapped to the QoS flow, so as to send the data packet data mapped to the QoS flow to the UE.
  • step S405 For this step, refer to step S405, which will not be described again here.
  • the RAN uses the first value of the QoS parameter to schedule the data packet mapped to the QoS flow.
  • step S311 For this step, refer to step S311, which will not be described again here.
  • the methods and/or steps implemented by SMF can also be implemented by components of SMF (such as chips or circuits).
  • the methods and/or steps implemented by UPF can also be implemented by components of UPF (such as chips or circuits).
  • the methods and/or steps implemented by the RAN may also be implemented by components of the RAN (such as chips or circuits).
  • the methods and/or steps implemented by the core network element can also be implemented by components (such as chips or circuits) of the core network element.
  • An embodiment of the present application also provides a communication device.
  • the communication device may be the SMF in the above method embodiment, or a device including the above SMF, or a chip or functional module within the SMF.
  • the communication device may be the UPF in the above method embodiment, or a device including the above UPF, or a chip or functional module of the UPF.
  • the communication device may be the RAN in the above method embodiment, or a device including the above RAN, or a chip or functional module within the RAN.
  • the communication device may be the core network element in the above method embodiment, or a device including the above core network element, or a chip or functional module within the core network element.
  • the communication device includes corresponding hardware structures and/or software modules for performing each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.
  • Embodiments of the present application can divide the communication device into functional modules according to the above method embodiments.
  • functional modules can be divided into corresponding functional modules, or two or more functions can be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.
  • FIG. 7 shows a schematic structural diagram of a communication device 20.
  • the communication device 20 includes a processing module 201 and a transceiver module 202.
  • the communication device 20 may be the aforementioned SMF, UPF, RAN or core network element.
  • the processing module 201 may also be called a processing unit and is used to implement the processing functions of SMF, UPF, RAN or core network elements in the above method embodiments.
  • the transceiver module 202 which may also be called a transceiver unit, is used to implement the transceiver function of the SMF, UPF, RAN or core network element in the above method embodiment.
  • the transceiver module 202 may be called a transceiver circuit, a transceiver, a transceiver, or a communication interface.
  • the processing module 201 is configured to obtain the third QoS flow for a quality of service.
  • the transceiving module 202 is configured to send the second parameter information for the QoS flow to the access network device.
  • the transceiving module 202 is configured to send configuration information for the QoS flow to the user plane functional network element.
  • the configuration information further includes: first identification information corresponding to the first type of information and/or second identification information corresponding to the second type of information, where the first identification information is different from the second identification information.
  • the second parameter information also includes: first identification information and/or second identification information.
  • the configuration information also includes: a first QoS parameter in the first group of QoS parameters and/or a second QoS parameter in the second group of QoS parameters, where the first QoS parameter and the second QoS parameter are Different values for the same QoS parameter.
  • the second parameter information also includes first type information and/or second type information.
  • the second parameter information also includes default parameter information, and the default parameter information is used to indicate which set of QoS parameters among the first set of QoS parameters and the second set of QoS parameters is the default set of QoS parameters.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the transceiver module 202 is configured to receive configuration information for a quality of service QoS flow from the session management function network element; receive data packets mapped to the QoS flow; and according to the type of data packets mapped to the QoS flow Information, sending parameter indication information for the QoS flow to the access network device.
  • the parameter indication information instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if mapped to the QoS flow
  • the parameter indication information instructs the access network device to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the configuration information also includes: first identification information corresponding to the first type of information (i.e., corresponding to the first group of QoS parameters) and/or corresponding to the second type of information (i.e., corresponding to the second group of QoS parameters). ) of the second identification information, the first identification information is different from the second identification information; if the type information of the data packet mapped to the QoS flow is the first type information, the parameter indication information is the first identification information; or, if the mapping The type information of the data packet to the QoS flow is the second type information, and the parameter indication information is the second identification information.
  • the parameter indication information is the first type of information; or, if the type information of the data packet mapped to the QoS flow is second type of information, then the parameter indication information is the second type of information.
  • the configuration information also includes: a first QoS parameter in the first group of QoS parameters and/or a second QoS parameter in the second group of QoS parameters, where the first QoS parameter and the second QoS parameter are Different values of the same QoS parameter; if the type information of the data packet mapped to the QoS flow is the first type of information, the parameter indication information is the first QoS parameter; or if the type information of the data packet mapped to the QoS flow is the first type of information For the second type of information, the parameter indication information is the second QoS parameter.
  • the parameter indication information is parameter change Indication information.
  • Parameter change indication information is used to instruct the access network device to adopt a QoS parameter that is different from the previous set of QoS parameters.
  • Another set of QoS parameters schedules the current data packet, and the previous set of QoS parameters refers to the set of QoS parameters that schedule the previous data packet; the previous set of QoS parameters and the other set of QoS parameters belong to the first set of QoS parameters and the second set of QoS parameters. .
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the parameter indication information is carried in a header of a data packet mapped to the QoS flow.
  • the transceiver module 202 is configured to receive second parameter information for a quality of service QoS flow from the session management functional network element; receive parameter indication information for the QoS flow from the user plane functional network element; According to the parameter indication information, the first set of QoS parameters is used to schedule the first data packet mapped to the QoS flow or the second set of QoS parameters is used to schedule the second data packet mapped to the QoS flow.
  • the transceiver module 202 if the parameter indication information indicates that the access network device uses the first set of QoS parameters to schedule the first data packet mapped to the QoS flow, the transceiver module 202 is configured to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow. The first data packet of the QoS flow; or, if the parameter indication information indicates that the access network device uses the second set of QoS parameters to schedule the second data packet mapped to the QoS flow, the transceiver module 202 is configured to use the second set of QoS parameters to schedule the mapping. The second packet to the QoS flow.
  • the second parameter information also includes: first identification information corresponding to the first group of QoS parameters and/or second identification information corresponding to the second group of QoS parameters; the parameter indication information is the first identification information or second identification information; if the parameter indication information is the first identification information, the first identification information instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if the parameter indication information is second identification information, the second identification information instructs the access network device to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the second parameter information also includes first type information and/or second type information; the first type information is used to indicate data packets scheduled using the first set of QoS parameters in the QoS flow.
  • the second type of information is used to indicate data packets scheduled using the second set of QoS parameters in the QoS flow; the parameter indication information is the first type of information or the second type of information; if the parameter indication information is the first type of information, the first type of information Instruct the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if the parameter indication information is the second type of information, the second type of information instructs the access network device to use the second set of QoS parameters. Schedule the second packet mapped to the QoS flow.
  • the parameter indication information is the first QoS parameter in the first group of QoS parameters, or the second QoS parameter in the second group of QoS parameters, and the first QoS parameter and the second QoS parameter are the same Different values of the QoS parameters; if the parameter indication information is the first QoS parameter, the first QoS parameter instructs the access network device to use the first set of QoS parameters to schedule the first data packet mapped to the QoS flow; or, if the parameter indication information is the second QoS parameter, the second QoS parameter instructs the access network device to use the second set of QoS parameters to schedule the second data packet mapped to the QoS flow.
  • the parameter indication information is parameter change indication information
  • the parameter change indication information is used to instruct the access network device to use another set of QoS parameters that is different from the previous set of QoS parameters to schedule the current flow mapped to the QoS flow.
  • data packet where the previous set of QoS parameters refers to a set of QoS parameters of the previous data packet scheduled to be mapped to the QoS flow; the previous set of QoS parameters and the other set of QoS parameters belong to the first set of QoS parameters and the second set of QoS parameters ;
  • the access network device uses the first set of QoS parameters or the second set of QoS parameters to schedule mapping according to the parameter indication information.
  • the data packet to the QoS flow includes: the access network device uses another set of QoS parameters to schedule the current data packet.
  • the second parameter information also includes default parameter information, and the default parameter information is used to indicate which set of QoS parameters among the first set of QoS parameters and the second set of QoS parameters is the default set of QoS parameters.
  • the first type of information and the second type of information are frame types, or packet data unit set types.
  • the parameter indication information is carried in a header of a data packet mapped to the QoS flow.
  • the processing module 201 is configured to obtain first parameter information for a quality of service QoS flow, where the first parameter information includes a second value of the QoS parameter of the QoS flow; wherein the second value is In order to indicate changing the QoS parameter from the first value to the second value, the first value is different from the second value; the transceiver module 202 is used to send the first parameter information to the access network device to indicate that when the predetermined value is met, When conditions are set, the access network device uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow.
  • the first parameter information also includes the duration of the second value, or the second value of the QoS parameter is used to schedule the total data volume of data packets mapped to the QoS flow; the total data volume is The duration of the second value is obtained by combining the second value; satisfying the preset condition means that the access network device uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow to reach the duration.
  • the transceiver module 202 is also configured to send monitoring indication information to the user plane functional network element, where the monitoring indication information is used to instruct the user plane functional network element to monitor the QoS flow data packets within a preset time. Traffic.
  • the user plane functional network element sends a recovery message to the access network device.
  • the recovery indication information is used to instruct the access network device to use the first value of the QoS parameter to schedule data packets mapped to the QoS flow; meeting the preset conditions means that the access network device receives the recovery indication information.
  • the method further includes: the core network element monitors the traffic of data packets of the QoS flow within a preset time; when the traffic of data packets of the QoS flow changes from above the threshold to below the threshold within the preset time, Within a limited time, or when it changes from below the threshold to above the threshold, the core network element sends recovery indication information to the access network device.
  • the recovery indication information is used to instruct the access network device to use the first value of the QoS parameter to schedule mapping to Data packets of the QoS flow; meeting the preset conditions means that the access network device receives the recovery indication information.
  • the method further includes: the core network element receives parameter change request information from the user equipment, and the parameter change request information is used to request to change the QoS parameters of the QoS flow; the core network element obtains the parameter change request information according to the parameter change request information. The second value of the QoS parameter.
  • the parameter change request information includes an event that changes the QoS parameters of the QoS flow.
  • the parameter change request information includes the second value of the QoS parameter (eg, target bandwidth).
  • the first parameter information sent to the access network device is carried in a header of a data packet mapped to the QoS flow.
  • the transceiver module 202 is configured to use the first value of the QoS parameter of a quality of service QoS flow to schedule data packets mapped to the QoS flow; receive the first parameter information for the QoS flow; use The second value of the QoS parameter schedules the data packets mapped to the QoS flow; when the preset conditions are met, the first value of the QoS parameter is used to schedule the data packets mapped to the QoS flow.
  • the first parameter information also includes: the duration of the second value, or the total data volume of the data packets mapped to the QoS flow scheduled using the second value of the QoS parameter; wherein, the total The amount of data is used to obtain the duration in combination with the second value; meeting the preset conditions means that the access network device uses the second value of the QoS parameter to schedule data packets mapped to the QoS flow to reach the duration.
  • meeting the preset condition means that the access network device receives recovery indication information from the user plane functional network element, and the recovery indication information is used to instruct the access network device to adopt the first value of the QoS parameter.
  • the first parameter information is carried in a header of a data packet mapped to the QoS flow.
  • an embodiment of the present application also provides a communication device.
  • the communication device 30 includes a processor 301, a memory 302 and a transceiver 303.
  • the processor 301 is coupled to the memory 302 and the transceiver 303.
  • the transceiver 303 is used to support the communication device to communicate with other communication devices.
  • the processor 301 executes the computer program or instructions in the memory 302, the method corresponding to the SMF, UPF, RAN or core network element in Figures 2 to 6 is executed.
  • an embodiment of the present application also provides a chip system.
  • the chip system 40 includes at least one processor 401 and at least one interface circuit 402 .
  • At least one processor 401 and at least one interface circuit 402 may be interconnected via lines.
  • at least one interface circuit 402 may be used to receive signals from other devices (eg, memory) or to send signals to other communication devices (eg, communication interfaces).
  • the methods corresponding to SMF, UPF, RAN or core network elements in Figures 2 to 6 are executed.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium includes instructions.
  • the communication device causes the communication device to execute the SMF, UPF, RAN or
  • Each function or step performed by the core network element for example, performs the methods shown in Figures 2 to 6.
  • Embodiments of the present application also provide a computer program product including instructions.
  • the instructions When the instructions are run on the above-mentioned communication device, the communication device is caused to perform each function performed by the SMF, UPF, RAN or core network element in the above-mentioned method embodiment. Or steps, such as performing the methods shown in Figures 2-6.
  • the processor involved in the embodiment of this application may be a chip.
  • it can be field programmable gate array (FPGA), application specific integrated circuit (ASIC), system on chip (SoC), central processor unit (CPU) , network processor (network processor, NP), digital signal processing circuit (digital signal processor, DSP), microcontroller unit (micro controller unit, MCU), programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU microcontroller unit
  • PLD programmable logic device
  • the memory involved in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (random access memory) memory, RAM), which serves as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules or components may be combined or can be integrated into another device, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or modules, which may be in electrical, mechanical or other forms.
  • modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located on one device, or they may be distributed to multiple devices. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional module in each embodiment of the present application can be integrated in one device, or each module can exist physically alone, or two or more modules can be integrated in one device.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • computer program instructions When computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transferred from a website, computer, server, or data center To another website, computer, server or data center through wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) Heart is transmitted.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or include one or more data storage devices such as servers and data centers that can be integrated with the medium.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (Solid State Disk, SSD)), etc.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte au domaine des communications. Elle concerne un procédé de communication, un appareil de communication et un système de communication, qui sont utilisés pour réaliser un ajustement dynamique de paramètres QoS d'un flux QoS, ce qui permet d'améliorer l'expérience de l'utilisateur. Le procédé de communication comprend : un élément réseau à fonction de gestion de session acquiert des premières informations de paramètres pour un flux de qualité de service (QoS), les premières informations de paramètres comprenant un premier groupe de paramètres QoS et un second groupe de paramètres QoS du flux QoS, le premier groupe de paramètres QoS correspondant à un premier type d'informations, le second groupe de paramètres QoS correspondant à un second type d'informations, le premier type d'informations servant à indiquer un premier paquet de données dans le flux QoS qui est planifié à l'aide du premier groupe de paramètres QoS, et le second type d'informations servant à indiquer un second paquet de données dans le flux QoS qui est planifié à l'aide du second groupe de paramètres QoS ; et l'élément réseau à fonction de gestion de session envoie des secondes informations de paramètres pour le flux QoS à un dispositif de réseau d'accès, les secondes informations de paramètres comprenant le premier groupe de paramètres QoS et le second groupe de paramètres QoS.
PCT/CN2023/084182 2022-03-28 2023-03-27 Procédé de communication, appareil de communication et système de communication WO2023185769A1 (fr)

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CN109600664A (zh) * 2017-09-30 2019-04-09 华为技术有限公司 业务传输方法和装置
CN110635880A (zh) * 2018-06-22 2019-12-31 华为技术有限公司 信号传输方法、网络设备及系统
CN113647183A (zh) * 2020-01-07 2021-11-12 Oppo广东移动通信有限公司 服务质量QoS参数配置方法及相关装置
WO2022047803A1 (fr) * 2020-09-07 2022-03-10 华为技术有限公司 Procédé et appareil de communication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109600664A (zh) * 2017-09-30 2019-04-09 华为技术有限公司 业务传输方法和装置
CN110635880A (zh) * 2018-06-22 2019-12-31 华为技术有限公司 信号传输方法、网络设备及系统
CN113647183A (zh) * 2020-01-07 2021-11-12 Oppo广东移动通信有限公司 服务质量QoS参数配置方法及相关装置
WO2022047803A1 (fr) * 2020-09-07 2022-03-10 华为技术有限公司 Procédé et appareil de communication

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