WO2023185402A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2023185402A1
WO2023185402A1 PCT/CN2023/080131 CN2023080131W WO2023185402A1 WO 2023185402 A1 WO2023185402 A1 WO 2023185402A1 CN 2023080131 W CN2023080131 W CN 2023080131W WO 2023185402 A1 WO2023185402 A1 WO 2023185402A1
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WIPO (PCT)
Prior art keywords
per
service
network element
frame
qos flow
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PCT/CN2023/080131
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English (en)
Chinese (zh)
Inventor
孙海洋
李岩
Original Assignee
华为技术有限公司
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Publication of WO2023185402A1 publication Critical patent/WO2023185402A1/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
    • H04W28/04—Error 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]

Definitions

  • the present application relates to the field of communication, and in particular, to a communication method and device.
  • New radio is gradually incorporating some multimedia services with strong real-time performance and large data capacity requirements. For example, extended reality (XR), tactile Internet, etc.
  • XR extended reality
  • QoS quality of service
  • the access network equipment does not perceive the correspondence between the data packets and frames of these services, the subsequently rendered data often does not correspond to the frames, resulting in frame loss, frame skipping, or frame lag, or inconsistency between the picture and audio, etc. situation, affecting the QoS quality of the business.
  • the current solution is to add the corresponding relationship between frames and data packets in the data packet to alleviate the situation of frame loss, frame jump, or frame lag, or inconsistency between the picture and audio, etc., and ensure the QoS quality of the business .
  • this method requires the access network device to identify the header information corresponding to each data packet, which is very expensive.
  • Embodiments of the present application provide a communication method and device to ensure QoS quality of services through lower overhead.
  • the first aspect is to provide a communication method.
  • the method includes: the policy control network element obtains the packet error rate PER corresponding to the service, and sends the PER to the session management network element.
  • PER is used by terminals or access network equipment to process service data packets based on PER.
  • the terminal or access network device by configuring the terminal or access network device with a PER corresponding to the service, such as a PER that meets the frame loss rate limit of the service, the terminal or access network device can directly process the frame loss based on the PER.
  • a PER corresponding to the service such as a PER that meets the frame loss rate limit of the service
  • PER is a specified value.
  • the policy control network element can instruct the terminal or access network equipment which value of PER to use, without the terminal or access network equipment needing to determine or adjust the PER, so as to reduce equipment overhead and improve operating efficiency.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, and the frame loss rate of the service is limited to A%.
  • the number of data packets in the service frame (such as one frame) is B
  • the specified value of PER is C
  • the value of A is greater than
  • B is a positive integer.
  • a PER of A% is a relatively loose packet loss rate condition
  • a PER of A/B% is a relatively strict packet loss rate condition.
  • Each of the two constitutes a range, such as [A/B%, A%] , so that the PCF network element can select a suitable PER within this range to take into account equipment overhead and business requirements.
  • the policy control network element obtains the PER corresponding to the service, including: the policy control network element receives the PER of the service from the application function, so as to reduce the overhead of the policy control network element and improve operating efficiency.
  • the PER It is determined based on the frame loss rate limit of the service. This PER is used to make the frame loss rate of the service meet the frame loss rate limit when the terminal or access network equipment processes the data packets of the service.
  • determining the PER according to the frame loss rate limit may be determining the frame loss rate limit as the PER.
  • the frame loss rate is limited to A%, and the PER is also A%, which is used to meet the frame loss rate limit of the service under specific circumstances (such as packet loss within the same frame).
  • the PER is further determined based on the number of data packets in the service frame.
  • the policy control network element determines the quotient between the frame loss rate limit of the service and the number of data packets in the frame of the service, and determines the quotient value as PER, which is used to detect packet loss in any frame under any circumstances (such as packet loss in any frame). ) meets the frame loss rate limit of the service.
  • the policy control network element obtains the PER corresponding to the service, including: the policy control network element receives the frame loss rate limit information of the service from the application function, and determines the PER based on the frame loss rate limit information. That is to say, the application function can only provide service information, and the policy control network element determines the PER on its own, so as to reduce the overhead of the application function and improve operating efficiency. Among them, the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or the access network device processes the data packet of the service.
  • the method described in the first aspect may further include: the policy control network element receives frame characteristic information of the service from the application function, and determines the number of data packets in the frame of the service based on the frame characteristic information.
  • the policy control network element determines the PER based on the frame loss rate limit information, including: the policy control network element determines the PER based on the frame loss rate limit information and the number of data packets in the service frame.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame period and data packet period can be used to determine the number of data packets in the frame of the service (recorded as the number of data packets in the frame).
  • the policy control network element can select parameters that it can recognize to determine the number of data packets in the frame, to avoid being unable to determine the number of data packets in the frame because the policy control network element does not support some of the above parameters, so as to ensure the reliability of the solution. sex. Moreover, in this case, determining the PER based on the number of data packets in the frame can also ensure that the frame loss rate of the service meets the frame loss rate limit under any circumstances.
  • the frame characteristic information includes at least one of the following: burst arrival time BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service.
  • the terminal or access network equipment can determine the data packets belonging to the same frame based on the frame characteristic information, thereby achieving a more accurate calculation of the packet loss rate of the service at the frame granularity.
  • the terminal or access network device determines how long after the first data packet arrives, all arriving data packets are data packets in the same frame.
  • the time information may be used to indicate the time of the frame of the service (denoted as frame time).
  • the terminal or access network equipment can also use different PERs at different times based on time information to take into account equipment overhead and business needs. For example, for non-key frames of the business within certain periods of time, the PER determined based on the frame loss rate limit information can be used to save overhead; for the key frames of the business within certain periods of time, the PER can be used based on the number of data packets in the frame. Determine the PER to avoid key frame loss and ensure business requirements.
  • PER is carried in the policy and charging control PCC rules to achieve cell reuse and improve communication efficiency.
  • the method described in the first aspect may further include: the policy control network element sends the execution condition of the PER to the session management network element.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within the specified time of the business, the PER is The specified value, or the specified value of PER in the case of packet loss or frame loss, so that the terminal or access network equipment can select appropriate execution conditions in the corresponding situation to take into account equipment overhead and business needs.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged. For example, when the terminal or access network device calculates packet loss at frame granularity, if the terminal or access network device determines that packet loss occurs within the same frame, the specified value of PER can be kept unchanged according to execution condition #3. Change.
  • the execution conditions of PER are carried in PCC rules to realize cell multiplexing and improve communication efficiency.
  • the second aspect is to provide a communication method.
  • the method includes: the session management network element receives the packet error rate PER corresponding to the service from the policy control network element, and sends the corresponding relationship between the PER and the QoS flow to the terminal and/or the access network device.
  • the corresponding relationship is used for the access network device or terminal to process the data packets of the service corresponding to the QoS flow according to the PER.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, and the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • PER is determined based on the frame loss rate limit of the service. This PER is used to ensure that the frame loss rate of the service meets the frame loss rate limit of the service when the terminal or access network equipment processes the data packets of the service.
  • PER can be determined based on the frame loss rate limit of the service and the number of data packets in the frame of the service.
  • the number of data packets in a frame of the service is determined based on the frame characteristic information of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the session management network element receives the PER corresponding to the service from the policy control network element, including: the session management network element receives the PCC rule from the policy control network element, and the PCC rule carries the PER.
  • the method described in the second aspect may also include: the session management network element maps the PCC rules to the QoS flow, so as to ensure the QoS quality of the service with the QoS flow as a granularity.
  • the session management network element maps the PCC rule to the QoS flow, including: the session management network element determines that the PER in the PCC rule is the same as the PER in the existing QoS flow parameter, and maps the PCC rule to the QoS flow parameter corresponding to QoS flows to reuse existing QoS flows and reduce overhead.
  • the session management network element determines that the PER is different from the PER in the existing QoS flow parameters, creates a QoS flow, and maps the PCC rule to the created QoS flow to prevent the PCC rule from affecting the existing QoS flow.
  • the method described in the second aspect may also include: the session management network element receives a self-policy
  • the execution condition of the PER of the network element is slightly controlled, and the execution condition of the PER is sent to the terminal or access network device.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the execution conditions for the session management network element to receive the PER from the policy control network element include: the session management network element receives the PCC rule from the policy control network element, and the PCC rule carries the execution condition for the PER.
  • the third aspect is to provide a communication method.
  • the method includes: receiving a correspondence between a PER and a QoS flow from a session management network element, and processing data packets of services corresponding to the QoS flow according to the PER.
  • the PER corresponds to the business.
  • processing the data packets of the service corresponding to the QoS flow according to the PER includes: determining the link configuration corresponding to the QoS flow according to the PER, and sending the data packet of the service corresponding to the QoS flow according to the link configuration. To ensure that the frame loss rate of this service meets the frame loss rate limit.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, and the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • PER is determined based on the frame loss rate limit of the service.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or access network device processes the data packet of the service.
  • the PER is further determined based on the number of data packets in the frame of the service.
  • the number of data packets in a frame of the service is determined based on the frame characteristic information of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the method described in the third aspect may further include: receiving frame characteristic information of the service, and determining, based on the frame characteristic information, data packets in the same frame belonging to the service.
  • processing the data packets of the service corresponding to the QoS flow according to the PER includes: processing the data of the service corresponding to the QoS flow according to the PER in a manner of discarding data packets in the same frame to ensure that the frame loss rate of the service meets the loss requirement. Frame rate limit.
  • the method described in the third aspect may further include: receiving execution conditions of the PER from the session management network element.
  • the execution condition of PER can be used to indicate that when the execution condition is met, PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the method described in the third aspect may also include: adjusting the specified value of PER according to the execution condition of PER, and adjusting the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resource corresponding to the QoS flow according to the specified value after adjustment of PER.
  • After adjusting the link resources send the data packets of the service corresponding to the QoS flow to ensure that the frame loss rate of the service always meets the frame loss rate limit.
  • the fourth aspect is to provide a communication method.
  • the method includes: the session management network element receives service-related information from the policy control network element, and sends the corresponding relationship between the service-related information and the QoS flow to the access network device.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the relevant information of the service is used to determine the PER.
  • the PER is used for the terminal or interface.
  • the network access device processes service data packets based on the PER.
  • the access network device can determine the PER corresponding to the service based on the service-related information, such as the PER that satisfies the frame loss rate limit of the service. .
  • the access network equipment can directly process the data packets of the service based on the PER without identifying the corresponding header information of the data packets, thereby ensuring the frame loss rate of the service and ensuring the QoS quality of the service through lower overhead.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the session management network element receives service-related information from the policy control network element, including: the session management network element receives PCC rules from the policy control network element, and the PCC rules carry service-related information.
  • the method described in the fourth aspect may further include: the session management network element maps the PCC rule to the QoS flow.
  • the session management network element maps the PCC rule to the QoS flow, including: the session management network element determines that the service information in the PCC rule is the same as the service information in the existing QoS flow parameter, and maps the PCC rule to the QoS flow parameter. The corresponding QoS flow; or, the session management network element determines that the service information in the PCC rule is different from the service information in the existing QoS flow parameters, creates a QoS flow, and maps the PCC rule to the created QoS flow.
  • the method described in the fourth aspect may also include: the session management network element sending the corresponding relationship between the relevant information of the service and the QoS flow to the terminal, so that the terminal can determine the PER corresponding to the service based on the corresponding relationship, thereby The data packets of the service corresponding to the QoS flow are processed directly based on the PER without identifying the header information corresponding to each data packet, so as to ensure the frame loss rate of the service and the QoS quality of the service through lower overhead.
  • the fifth aspect provides a communication method.
  • the method includes: the access network device receives the corresponding relationship between the relevant information of the service from the session management network element and the QoS flow, and determines the PER according to the relevant information of the service, so as to process according to the PER. Process the data packets of the service corresponding to the QoS flow.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit, and the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the access network device processes the data packets of the service corresponding to the QoS flow based on the PER, including: the access network device determines the link configuration corresponding to the QoS flow based on the PER, and based on the link configuration, Send the data packet of the service corresponding to the QoS flow.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the method described in the fifth aspect may further include: the access network device determines the data packets in the same frame belonging to the service according to the frame characteristic information of the service.
  • the access network device processes the data packets of the service corresponding to the QoS flow according to the PER, including: the access network device processes the data packets of the service corresponding to the QoS flow according to the PER and discards the data packet in the same frame.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate is limited to A%, the number of data packets is B, the specified value of PER is C, and the value of A Greater than 0, B is a positive integer.
  • the access network device determines the PER corresponding to the QoS flow based on service-related information, including: the access network device determines the PER based on the frame loss rate limit information. Alternatively, the access network device determines the PER based on the number of data packets and frame loss rate limit information.
  • the method described in the fifth aspect may also include: the access network device sending the corresponding relationship between the PER and the QoS flow to the terminal, that is, the access network device directly configures the PER of the QoS flow granularity for the terminal. , to reduce terminal overhead and improve battery life.
  • the corresponding relationship is used for the terminal to process data packets of services corresponding to the QoS flow according to the PER.
  • the method described in the fifth aspect may further include: the access network device determines the execution condition of the PER based on the relevant information of the service.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the method described in the fifth aspect may further include: the access network device adjusts the specified value of PER according to the execution condition of PER, and adjusts the link resources corresponding to the QoS flow according to the adjusted specified value of PER. , thereby sending the data packet of the service corresponding to the QoS flow according to the adjusted link resource.
  • the method described in the fifth aspect may also include: the access network device sending the execution condition of the PER to the terminal, that is, configuring the execution condition for the terminal through the access network device, so as to reduce terminal overhead and improve battery life.
  • the sixth aspect is to provide a communication method.
  • the method includes: the terminal receives the corresponding relationship between the PER and the QoS flow from the access network device, or receives the corresponding relationship between the service related information and the QoS flow from the session management network element, so as to process the service corresponding to the QoS flow according to the PER. data pack.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the PER is determined based on the relevant information of the service.
  • the terminal processes data packets of services corresponding to the QoS flow based on the PER, including: the terminal determines the link configuration corresponding to the QoS flow based on the PER, and sends data of the service corresponding to the QoS flow based on the link configuration. Bag.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the method described in the sixth aspect may further include: the terminal determines the data packets in the same frame belonging to the service according to the frame characteristic information of the service.
  • the terminal processes the data packets of the service corresponding to the QoS flow according to the PER, including: the terminal processes the data packets of the service corresponding to the QoS flow according to the PER and discards the data packets in the same frame.
  • PER is a specified value.
  • the specified value satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate is limited to A%, the number of data packets is B, the specified value is C, the value of A is greater than 0, and B is a positive integer.
  • the method described in the sixth aspect may further include: the terminal determines the PER according to the frame loss rate limit information. Alternatively, the terminal determines the PER based on the number of data packets and frame loss rate limit information.
  • the method described in the sixth aspect may further include: the terminal receiving the execution condition of the PER from the access network device.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the method described in the sixth aspect may also include: adjusting the specified value of PER according to the execution condition of PER, and adjusting the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resource corresponding to the QoS flow according to the specified value after adjustment of PER. After adjusting the link resources, send the data packets of the service corresponding to the QoS flow.
  • adjusting the link resources send the data packets of the service corresponding to the QoS flow.
  • the seventh aspect provides a communication method.
  • the method includes: the policy control network element receives service-related information from the application function, and sends the service-related information to the session management network element.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate.
  • Frame rate limit, frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the relevant information of the service is used to determine the PER, and the PER is used by the terminal or access network equipment to process the data packets of the service based on the PER.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the policy control network element sends service-related information to the session management network element, including: the policy control network element sends PCC rules to the session management network element, where the PCC rules carry service-related information.
  • a communication device includes: modules for executing the method described in the first aspect, such as a processing module and a transceiver module.
  • the processing module is used to obtain the PER corresponding to the service; the transceiving module is used to send the PER to the session management network element.
  • PER is used by terminals or access network equipment to process service data packets based on PER.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%.
  • the frame loss rate of the service is limited to A%
  • the number of data packets in the frame of the service is B
  • the specified value of PER is C
  • the value of A is greater than 0
  • B is a positive integer.
  • the transceiver module is also used to receive PER from the application function.
  • the PER is determined based on the frame loss rate limit of the service. This PER is used to make the frame loss rate of the service meet the frame loss rate limit when the terminal or access network equipment processes the data packets of the service.
  • the PER is further determined based on the number of data packets in the frame of the service.
  • the transceiver module is also used to receive the frame loss rate limit information from the application function service; the processing module is also used to determine the PER based on the frame loss rate limit information.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or the access network device processes the data packet of the service.
  • the transceiver module is also used to receive the frame characteristic information of the service from the application function; the processing module is also used to determine the number of data packets in the frame of the service based on the frame characteristic information, and determine the frame loss rate limit of the service The number of data packets within a frame of information and services determines the PER.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service.
  • the time information is used to indicate the time of the frame of the service.
  • PER is determined based on frame loss rate limit information.
  • PER is determined based on packet number and frame loss rate limit information.
  • PER is carried in the PCC rules.
  • the transceiver module is also used to send PER execution conditions to the session management network element.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution conditions of PER include at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module is used to implement the sending function of the communication device described in the eighth aspect
  • the receiving module is used to implement the receiving function of the communication device described in the eighth aspect.
  • the communication device may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can execute the communication method described in the first aspect.
  • the communication device described in the eighth aspect may be a network device, such as a policy control network element, or may be a chip (system) or other component or component that can be disposed in the network device, or may include a network device. device, this application does not limit this.
  • a communication device includes: modules for performing the method described in the second aspect, such as a receiving module and a sending module.
  • the receiving module is used to receive the packet error rate PER corresponding to the service from the policy control network element; the sending module is used to send the corresponding relationship between the PER and the QoS flow to the terminal and/or access network equipment.
  • the corresponding relationship is used for the access network device or terminal to process the data packets of the service corresponding to the QoS flow according to the PER.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, and the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • PER is determined based on the frame loss rate limit of the service.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or access network device processes the data packet of the service.
  • the PER is further determined based on the number of data packets in the frame of the service.
  • the number of data packets in a frame of the service is determined based on the frame characteristic information of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the receiving module is also used to receive PCC rules from the policy control network element, and the PCC rules carry PER.
  • the device described in the ninth aspect may further include: a processing module.
  • This processing module is used to map PCC rules to QoS flows.
  • the processing module is also used to determine that the PER in the PCC rule is the same as the PER in the existing QoS flow parameter, and map the PCC rule to the QoS flow corresponding to the QoS flow parameter.
  • the processing module is also used to determine that the PER in the PCC rule is different from the PER in the existing QoS flow parameters, create a QoS flow, and map the PCC rule to the created QoS flow.
  • the receiving module is also used to receive the execution conditions of the PER from the policy control network element;
  • the sending module is also used to send the execution conditions of PER to the terminal or access network equipment.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the receiving module is also used to receive PCC rules from the policy control network element.
  • the PCC rules carry the execution conditions of the PER.
  • the sending module and the receiving module can also be integrated into a transceiving module.
  • the transceiver module is used to implement the transceiver function of the communication device described in the ninth aspect.
  • the communication device may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can execute the communication method described in the second aspect.
  • the communication device described in the ninth aspect may be a network device, such as a session management network element, or may be a chip (system) or other component or component that can be disposed in the network device, or may include a network device. device, this application does not limit this.
  • a communication device includes: modules for performing the method described in the third aspect, such as a processing module and a transceiver module.
  • the transceiver module is used to receive the correspondence between the PER and the QoS flow from the session management network element.
  • the PER corresponds to the business.
  • the processing module is used to process data packets of QoS flow corresponding services based on PER.
  • the processing module is also used to determine the link configuration corresponding to the QoS flow based on the PER, and control the transceiver module to send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, and the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • PER is determined based on the frame loss rate limit of the service.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or access network device processes the data packet of the service.
  • the PER is further determined based on the number of data packets in the frame of the service.
  • the number of data packets in a frame of the service is determined based on the frame characteristic information of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the transceiver module is also configured to receive the frame characteristic information of the service; the processing module is also configured to determine the data packets in the same frame belonging to the service based on the frame characteristic information.
  • the processing module is also used according to PER, and in The method of discarding data packets within the same frame processes the data corresponding to the QoS flow.
  • the transceiver module is also used to receive the execution conditions of the PER from the session management network element.
  • the execution condition of PER can be used to indicate that when the execution condition is met, PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the processing module is also used to adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources according to the adjusted link.
  • Resources control the transceiver module to send data packets corresponding to the QoS flow.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module is used to implement the sending function of the communication device described in the tenth aspect
  • the receiving module is used to implement the receiving function of the communication device described in the tenth aspect.
  • the communication device may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can perform the communication method described in the third aspect.
  • the communication device described in the tenth aspect may be a terminal or network equipment, such as a UE or RAN equipment, or it may be a chip (system) or other component or component that can be disposed in the terminal or network equipment, or it may be It is a device including a terminal or network equipment, which is not limited in this application.
  • a communication device includes: modules for performing the method described in the fourth aspect, such as a receiving module and a sending module.
  • the receiving module is used to receive relevant information about services from the policy control network element.
  • the sending module is used to send service-related information to the access network device, as well as the correspondence between the service-related information and the QoS flow.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the relevant information of the service is used to determine the PER.
  • the PER is used for the terminal or interface.
  • the network access device processes service data packets based on the PER.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the receiving module is also used to receive PCC rules from the policy control network element.
  • the PCC rules carry business-related information.
  • the device described in the eleventh aspect may further include: a processing module.
  • This processing module is used to convert the PCC regulations into is mapped to the QoS flow.
  • the processing module is also used to determine that the service information in the PCC rule is the same as the service information in the existing QoS flow parameters, and map the PCC rule to the QoS flow corresponding to the QoS flow parameter; or, the processing module is also used In order to determine that the service information in the PCC rule is different from the service information in the existing QoS flow parameters, a QoS flow is created, and the PCC rule is mapped to the created QoS flow.
  • the sending module is also used to send the corresponding relationship between the service-related information and the QoS flow to the terminal.
  • the sending module and the receiving module can also be integrated into a transceiving module.
  • the transceiver module is used to implement the transceiver function of the communication device described in the eleventh aspect.
  • the communication device may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can perform the communication method described in the fourth aspect.
  • the communication device described in the eleventh aspect may be a network device, such as a session management network element, or may be a chip (system) or other component or component that can be installed in the network device, or may include a network device.
  • the device of the equipment is not limited in this application.
  • a communication device in a twelfth aspect, includes: modules for performing the method described in the fifth aspect, such as a processing module and a transceiver module.
  • the transceiver module is used to receive the corresponding relationship between the relevant information of the service from the session management network element and the QoS flow; the processing module is used to determine the PER according to the relevant information of the service, so as to process the service corresponding to the QoS flow according to the PER. of data packets.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit, and the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the processing module is also used to determine the link configuration corresponding to the QoS flow based on the PER, and control the transceiver module to send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the processing module is also configured to determine the data packets in the same frame belonging to the service based on the frame characteristic information of the service. And, the processing module is also used to process the data packets of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate is limited to A%, the number of data packets is B, the specified value of PER is C, and the value of A Greater than 0, B is a positive integer.
  • the processing module is also used to determine the PER based on the frame loss rate limit information.
  • the processing module is also used to determine the PER based on the number of data packets and frame loss rate limit information.
  • the transceiver module is also used to send the corresponding relationship between PER and QoS flows to the terminal.
  • the corresponding relationship is used for the terminal to process data packets of services corresponding to the QoS flow according to the PER.
  • the processing module is also used to determine the execution conditions of PER based on business-related information.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the processing module is also used to adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources according to the adjusted link.
  • Resources control the transceiver module to send data packets corresponding to the QoS flow.
  • transceiver module is also used to send the execution conditions of PER to the terminal.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module is used to realize the sending function of the communication device described in the twelfth aspect
  • the receiving module is used to realize the receiving function of the communication device described in the twelfth aspect.
  • the communication device may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can perform the communication method described in the fifth aspect.
  • the communication device described in the twelfth aspect may be a network device, such as an access network device, or may be a chip (system) or other components or components that can be installed in the network device, or may include a network device.
  • the device of the equipment is not limited in this application.
  • a communication device in a thirteenth aspect, includes: modules for performing the method described in the sixth aspect, such as a processing module and a transceiver module.
  • the transceiver module is used to receive the correspondence between the PER and the QoS flow from the access network device, or the correspondence between the service-related information from the session management network element and the QoS flow; the processing module is used to process according to the PER Send the data packet of the service corresponding to the QoS flow.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the PER is determined based on the relevant information of the service.
  • the processing module is also used to determine the link configuration corresponding to the QoS flow based on the PER, and control the transceiver module to send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the processing module is also used to determine the number of data in the same frame belonging to the service based on the frame characteristic information of the service. According to the package. And, the processing module is also used to process the data packets of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • PER is a specified value.
  • the specified value satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate is limited to A%, the number of data packets is B, the specified value is C, the value of A is greater than 0, and B is a positive integer.
  • the processing module is also used to determine the PER based on the frame loss rate limit information.
  • the processing module is also used to determine the PER based on the number of data packets and frame loss rate limit information.
  • the transceiver module is also used to receive PER execution conditions from the access network device.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the processing module is also used to adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources according to the adjusted link.
  • Resources control the transceiver module to send data packets corresponding to the QoS flow.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module is used to implement the sending function of the communication device described in the thirteenth aspect
  • the receiving module is used to implement the receiving function of the communication device described in the thirteenth aspect.
  • the communication device may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can perform the communication method described in the sixth aspect.
  • the communication device described in the thirteenth aspect may be a terminal, such as a terminal, a chip (system) or other components or components that can be installed in the terminal, or a device including a terminal. This application There is no restriction on this.
  • a communication device includes: modules for performing the method described in the seventh aspect, such as a receiving module and a sending module.
  • the receiving module is used to receive service-related information from the application function; the sending module is used to send service-related information to the session management network element.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit, and the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the relevant information of the service is used to determine the PER, and the PER is used by the terminal or access network equipment to process the data packets of the service based on the PER.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used in the indication industry The arrival time of the first data packet of the service, and the time information is used to indicate the time of the frame of the service.
  • the sending module is also used to send PCC rules to the session management network element, where the PCC rules carry business-related information.
  • the sending module and the receiving module can also be integrated into a transceiving module.
  • the transceiver module is used to implement the transceiver function of the communication device described in the fourteenth aspect.
  • the communication device described in the fourteenth aspect may further include a processing module, which is used to implement the processing function of the communication device.
  • the communication device described in the fourteenth aspect may further include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device can perform the communication method described in the seventh aspect.
  • the communication device described in the fourteenth aspect may be a network device, such as a PCF network element, or may be a chip (system) or other component or component that can be installed in the network device, or may include a network device. device, this application does not limit this.
  • a communication device in a fifteenth aspect, includes: a processor configured to execute the communication method described in any one of the first to seventh aspects.
  • the communication device described in the fifteenth aspect may further include a transceiver.
  • the transceiver can be a transceiver circuit or an interface circuit.
  • the transceiver can be used for the communication device described in the fifteenth aspect to communicate with other communication devices.
  • the communication device described in the fifteenth aspect may further include a memory.
  • This memory can be integrated with the processor or provided separately.
  • the memory may be used to store computer programs and/or data involved in the communication method described in any one of the first to seventh aspects.
  • the communication device described in the fifteenth aspect may be a terminal or a network device, or a chip (system) or other component or component that may be disposed in the terminal or network device, or a device including the terminal or network device. device.
  • a communication device in a sixteenth aspect, includes: a processor coupled to a memory, and the processor is configured to execute a computer program stored in the memory, so that the communication device executes the communication method described in any one of the first to seventh aspects.
  • the communication device described in the sixteenth aspect may further include a transceiver.
  • the transceiver can be a transceiver circuit or an interface circuit.
  • the transceiver can be used for the communication device described in the sixteenth aspect to communicate with other communication devices.
  • the communication device described in the sixteenth aspect may be a terminal or a network device, or a chip (system) or other component or component that may be disposed in the terminal or network device, or a device including the terminal or network device. device.
  • a communication device including: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the communication device executes the first to seventh aspects medium term The communication method described in one aspect.
  • the communication device described in the seventeenth aspect may further include a transceiver.
  • the transceiver can be a transceiver circuit or an interface circuit.
  • the transceiver can be used for the communication device described in the seventeenth aspect to communicate with other communication devices.
  • the communication device described in the seventeenth aspect may be a terminal or a network device, or a chip (system) or other component or component that may be disposed in the terminal or network device, or a device including the terminal or network device. device.
  • a communication device including: a processor.
  • the processor is configured to be coupled to the memory, and after reading the computer program in the memory, execute the communication method as described in any one of the first to seventh aspects according to the computer program.
  • the communication device described in the eighteenth aspect may further include a transceiver.
  • the transceiver can be a transceiver circuit or an interface circuit.
  • the transceiver can be used for the communication device described in the eighteenth aspect to communicate with other communication devices.
  • the communication device described in the eighteenth aspect may be a terminal or a network device, or a chip (system) or other component or component that may be disposed in the terminal or network device, or a device including the terminal or network device. device.
  • a communication system in a nineteenth aspect, includes: one or more terminals described in the above first to seventh aspects, and one or more network devices.
  • a computer-readable storage medium including: a computer program or instructions; when the computer program or instructions are run on a computer, the computer is caused to execute any one of the first to seventh aspects. communication method.
  • a computer program product including: a computer program or an instruction, which when the computer program or instruction is run on a computer, causes the computer to execute any one of the steps described in the first to seventh aspects. Communication methods.
  • Figure 1 is a schematic diagram of the non-roaming architecture of 5GS
  • Figure 4 is a schematic diagram of a data connection session
  • FIG. 5 is a schematic diagram of the QoS flow architecture
  • Figure 6 is a schematic diagram 2 of the QoS flow architecture
  • FIG. 7 is a schematic diagram of the architecture of the interoperability between the TSN system and 5GS;
  • Figure 8 is a schematic diagram of downlink transmission
  • Figure 9 is a schematic diagram of the 5GS architecture for TSC services in non-TSN scenarios.
  • Figure 10 is a schematic diagram of the correspondence between data packets and frames
  • Figure 11 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 12 is a schematic flowchart 1 of the communication method provided by the embodiment of the present application.
  • Figure 13 is a schematic flowchart 2 of the communication method provided by the embodiment of the present application.
  • Figure 14 is a schematic flowchart three of the communication method provided by the embodiment of the present application.
  • Figure 15 is a schematic flowchart 4 of the communication method provided by the embodiment of the present application.
  • Figure 16 is a schematic flow chart 5 of the communication method provided by the embodiment of the present application.
  • Figure 17 is a schematic flow chart 6 of the communication method provided by the embodiment of the present application.
  • Figure 18 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 19 is a schematic structural diagram 2 of a communication device provided by an embodiment of the present application.
  • Figure 20 is a schematic third structural diagram of a communication device provided by an embodiment of the present application.
  • 5G system 5G system, 5GS
  • FIG. 1 is a schematic diagram of the non-roaming architecture of 5GS.
  • 5GS includes: access network (AN) and core network (core network, CN), and can also include: terminals.
  • the above-mentioned terminal may be a terminal with a transceiver function, or a chip or chip system that can be installed on the terminal.
  • the terminal can also be called user equipment (UE), access terminal, subscriber unit (subscriber unit), user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, User terminal, terminal, wireless communication device, user agent or user device.
  • UE user equipment
  • MS subscriber unit
  • MS mobile station
  • remote station remote terminal
  • mobile device User terminal, terminal, wireless communication device, user agent or user device.
  • the terminal in the embodiment of the present application may be a mobile phone (mobile phone), cellular phone (cellular phone), smart phone (smart phone), tablet computer (Pad), wireless data card, personal digital assistant computer (personal digital assistant, PDA) ), wireless modems, handheld devices, laptop computers, machine type communication (MTC) terminals, computers with wireless transceiver functions, virtual reality (VR) Terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, smart grids Wireless terminals in grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, vehicle-mounted terminals, roadside units with terminal functions (road side unit, RSU) etc.
  • the terminal of this application may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit built into the vehicle as one or more components or units.
  • the above-mentioned AN is used to implement access-related functions. It can provide network access functions for authorized users in specific areas, and can determine transmission links of different qualities to transmit user data according to user levels, business needs, etc.
  • the AN forwards control signals and user data between the terminal and the CN.
  • AN may include: access network equipment, which may also be called radio access network equipment (radio access network, RAN) equipment.
  • RAN radio access network equipment
  • CN is mainly responsible for maintaining mobile network subscription data and providing terminals with functions such as session management, mobility management, policy management, and security authentication.
  • CN mainly includes the following network elements: user plane function (UPF) network element, authentication server function (AUSF) network element, access and mobility management function (AMF) network element Element, session management function (SMF) network element, network slice selection function (NSSF) network element, network exposure function (NEF) network element, network function repository function (NF repository) function (NRF) network element, policy control function (PCF) network element, unified data management (UDM) network element, unified data repository (UDR), and application function (application function) , AF).
  • UPF user plane function
  • AUSF authentication server function
  • AMF access and mobility management function
  • SMF session management function
  • NSSF network slice selection function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network exposure function
  • NEF network function
  • the UE accesses the 5G network through the RAN device, and the UE communicates with the AMF network element through the N1 interface (referred to as N1); the RAN network element communicates with the AMF network element through the N2 interface (referred to as N2); The RAN network element communicates with the UPF network element through the N3 interface (referred to as N3); the SMF communicates with the UPF network element through the N4 interface (referred to as N4), and the UPF network element accesses the data network (DN) through the N6 interface (referred to as N6).
  • N1 interface referred to as N1
  • the RAN network element communicates with the AMF network element through the N2 interface (referred to as N2)
  • the RAN network element communicates with the UPF network element through the N3 interface (referred to as N3)
  • the SMF communicates with the UPF network element through the N4 interface (referred to as N4)
  • the UPF network element accesses the data network (DN) through the N6 interface (referred to as N6)
  • Control plane functions use service-based interfaces for interaction.
  • the external service interface provided by the AUSF network element is Nausf; the external service interface provided by the AMF network element is Namf; the external service interface provided by the SMF network element is Nsmf; the external service interface provided by the NSSF is Nnssf; the NEF network
  • the external service interface provided by the NRF network element is Nnef; the external service interface provided by the NRF network element is Nnrf; the external service interface provided by the PCF network element is Npcf; the external service interface provided by the UDM network element is Nudm; the external service interface provided by the UDR network element is Nudm;
  • the service-oriented interface provided is Nudr; the service-oriented interface provided by AF to the outside world is Naf.
  • network elements such as NSSF network element, AUSF network element, UDM network element, UE, RAN network element, PCF network element, and SMF network element can also communicate with AMF network elements.
  • AUSF network elements can also communicate with UDM network elements, and UDM can also communicate with SMF network elements.
  • SMF network elements can also communicate with UPF network elements and PCF network elements.
  • PCF network elements can also communicate with AF and NEF network elements.
  • NEF network elements can also communicate with AF.
  • UPF network elements can communicate with RAN equipment and DN.
  • "Nxx" between two network elements indicates the interface between the two network elements.
  • N22 represents the interface between NSSF network element and AMF network element
  • N12 represents the interface between AUSF network element and AMF network element
  • N8 represents the interface between UDM network element and AMF network element. We will not list them one by one here. List etc.
  • RAN equipment may be equipment that provides access to terminals.
  • RAN equipment may include: next-generation mobile communication systems, such as 6G access network equipment, such as 6G base stations, or in the next-generation mobile communication system, the network equipment may also have other naming methods, which are all covered by this application Within the protection scope of the embodiments, this application does not impose any limitations on this.
  • the RAN equipment may also include 5G, such as gNB in the new radio (NR) system, or one or a group (including multiple antenna panels) antenna panels of the base station in 5G, or may also be composed of gNB, transmission point (transmission and reception point, TRP or transmission point, TP) or transmission measurement function (TMF) network node, such as baseband unit (building base band unit, BBU), or centralized unit (centralized unit (CU) or distributed unit (DU), RSU with base station function, or wired access gateway, or 5G core network element.
  • 5G such as gNB in the new radio (NR) system, or one or a group (including multiple antenna panels) antenna panels of the base station in 5G, or may also be composed of gNB, transmission point (transmission and reception point, TRP or transmission point, TP) or transmission measurement function (TMF) network node, such as baseband unit (building base band unit, BBU), or centralized unit (centralized unit (CU) or distributed unit (DU), RSU with base station function, or
  • RAN equipment can also include access points (APs) in wireless fidelity (WiFi) systems, wireless relay nodes, wireless backhaul nodes, various forms of macro base stations, micro base stations (also (called small stations), relay stations, access points, wearable devices, vehicle-mounted devices, etc.
  • APs access points
  • WiFi wireless fidelity
  • wireless relay nodes wireless backhaul nodes
  • various forms of macro base stations such as, but not limited to, WiFi
  • micro base stations also (called small stations)
  • relay stations such as access points, wearable devices, vehicle-mounted devices, etc.
  • the UPF network element is mainly responsible for user data processing (forwarding, receiving, accounting, etc.).
  • the UPF network element can receive user data from the data network (DN) and forward the user data to the terminal through the access network device.
  • the UPF network element can also receive user data from the terminal through the access network equipment and forward the user data to the DN.
  • DN network element refers to the operator network that provides data transmission services to users. For example, Internet protocol (IP), multimedia service (IP multi-media service, IMS), Internet, etc.
  • IP Internet protocol
  • multimedia service IP multi-media service
  • IMS Internet multi-media service
  • the DN can be an operator's external network or a network controlled by the operator, used to provide business services to terminal devices.
  • the AUSF network element is mainly used to perform terminal security authentication.
  • AMF network elements are mainly used for mobility management in mobile networks. For example, user location update, user registration network, user switching, etc.
  • SMF network elements are mainly used for session management in mobile networks. For example, session establishment, modification, and release. Specific functions include assigning Internet Protocol (IP) addresses to users, selecting UPF network elements that provide data packet forwarding functions, etc.
  • IP Internet Protocol
  • the PCF network element mainly supports providing a unified policy framework to control network behavior, provides policy rules to the control layer network functions, and is also responsible for obtaining user subscription information related to policy decisions.
  • PCF network elements can provide policies to AMF network elements and SMF network elements, such as quality of service (QoS) policies, slice selection policies, etc.
  • QoS quality of service
  • NSSF network elements are mainly used to select network slices for terminals.
  • NEF network elements are mainly used to support the opening of capabilities and events.
  • UDM network elements are mainly used to store user data, such as contract data, authentication/authorization data, etc.
  • UDR network elements are mainly used to store structured data.
  • the stored content includes contract data and policy data, externally exposed structured data and application-related data.
  • AF mainly supports interaction with CN to provide services, such as affecting data routing decisions, policy control functions, or providing some third-party services to the network side.
  • FIG 2 is a schematic diagram of the 5GS roaming architecture, such as the 5G network in the local breakout (LBO) roaming scenario.
  • the 5G network includes a home public land mobile network (HPLMN) and a visited public land mobile network (VPLMN).
  • HPLMN is the home network of the UE
  • VPLMN is the roaming network of the UE.
  • services need to be offloaded at VPLMN, that is, the DN is at VPLMN.
  • VPLMN and HPLMN communicate through the visited security edge protection proxy (vSEPP) and the home security edge protection proxy (hSEPP).
  • vSEPP visited security edge protection proxy
  • hSEPP home security edge protection proxy
  • the UE accesses the 5G network through the RAN device, and the UE communicates with the AMF network element through the N1 interface (referred to as N1); the RAN device communicates with the AMF network element through the N2 interface (referred to as N2) Communication; RAN equipment communicates with UPF network elements through the N3 interface (referred to as N3); SMF network elements communicate with UPF network elements through the N4 interface (referred to as N4), and UPF network elements access the DN through the N6 interface (referred to as N6).
  • N1 interface referred to as N1
  • the RAN device communicates with the AMF network element through the N2 interface (referred to as N2) Communication
  • RAN equipment communicates with UPF network elements through the N3 interface (referred to as N3)
  • SMF network elements communicate with UPF network elements through the N4 interface (referred to as N4), and UPF network elements access the DN through the N6 interface (referred to as N6).
  • the VPLMN control plane functions such as NSSF network element, NEF network element, AMF network element, SMF network element, NRF network element, PCF network element, or AF shown in (a) in Figure 2 use service-oriented interfaces to interact.
  • the external service interface provided by the AMF network element is Namf
  • the external service interface provided by the SMF network element is Nsmf
  • the external service interface provided by the NSSF network element is Nnssf
  • the external service interface provided by the NEF network element is Nnef
  • the external service interface provided by the NRF network element is Nnrf
  • the external service interface provided by the PCF network element is Npcf
  • the external service interface provided by the AF is Naf.
  • the HPLMN control plane functions such as UDM, AUSF network element, PCF network element, NRF network element, NSSF network element, or NEF network element shown in (a) of Figure 2 also use service-oriented interfaces for interaction.
  • the external service interface provided by the AUSF network element is Nausf
  • the external service interface provided by the UDM network element is Nudm, etc.
  • the NSSF network elements, UE, RAN equipment, SMF network elements in the VPLMN, and the AUSF network elements and UDM network elements in the HPLMN can communicate with each other. AMF communication within VPLMN.
  • the SMF network element in the VPLMN can also communicate with the UPF network element, PCF network element (also called vPCF) in the VPLMN, and the UDM network element in the HPLMN.
  • the PCF network element in the VPLMN can also communicate with the AF in the VPLMN and the PCF network element (also called hPCF) in the HPLMN.
  • the UPF network element in the VPLMN can also communicate with the RAN equipment and DN in the VPLMN.
  • “Nxx” between the two network elements shown in (b) of Figure 2 represents the interface between the two network elements, and specific examples will not be given one by one.
  • FIG 3 is a schematic diagram 2 of the 5GS roaming architecture, such as home routed (HR) roaming scenario.
  • 5G network includes HPLMN and VPLMN.
  • HPLMN is the home network of the UE
  • VPLMN is the roaming network of the UE.
  • VPLMN and HPLMN communicate through vSEPP and hSEPP.
  • services need to be offloaded at HPLMN, that is, the DN is at HPLMN.
  • the UE accesses the 5G network through the RAN device, and the UE communicates with the AMF network element through the N1 interface (referred to as N1); the RAN device communicates with the AMF network element through the N2 interface (referred to as N2).
  • AMF network elements communicate;
  • RAN equipment communicates with UPF network elements through the N3 interface (referred to as N3);
  • SMF network elements communicate with UPF network elements through the N4 interface (referred to as N4).
  • the UPF network element accesses the DN through the N6 interface (referred to as N6); the UPF network element communicates with the SMF network element through the N4 interface (referred to as N4).
  • control plane functions such as the NSSF network element, NEF network element, AMF network element, SMF network element, NRF network element, or PCF network element of the VPLMN shown in (a) of Figure 3 use service-based interfaces for interaction.
  • the external service interface provided by the AMF network element is Namf; the external service interface provided by the SMF network element is Nsmf; the external service interface provided by the NSSF network element is Nnssf; the external service interface provided by the NEF network element is Nnef; The external service interface provided by the NRF network element is Nnrf; the external service interface provided by the PCF network element is Npcf.
  • the HPLMN control plane functions such as UDM network element, AUSF network element, PCF network element, NRF network element, NSSF network element, AF, or NEF network element shown in (a) of Figure 3 also use service-oriented interfaces for interaction.
  • the service-oriented interface provided by the AUSF network element to the outside world is Nausf
  • the service-oriented interface provided by the UDM network element to the outside world is Nudm
  • the service-oriented interface provided by the AF to the outside world is Naf.
  • the NSSF network element, UE, RAN equipment, SMF network element, PCF network element in the VPLMN, and the AUSF network element and UDM network in the HPLMN All elements can communicate with the AMF network elements in the VPLMN.
  • the SMF network elements in the VPLMN can also communicate with the UPF network elements in the VPLMN and the SMF network elements in the HPLMN.
  • the PCF network elements in the VPLMN can also communicate with the PCF network elements in the HPLMN.
  • the UPF network elements in the VPLMN can also communicate with the RAN equipment in the VPLMN and the UPF network elements in the HPLMN.
  • the NSSF network elements in the VPLMN can also communicate with the NSSF network elements in the HPLMN.
  • the SMF network element in the HPLMN can also communicate with the UPF network element, UDM network element and PCF network element in the HPLMN.
  • the UDM network element in the HPLMN can also communicate with the AUS network element F in the HPLMN.
  • the PCF network element in the HPLMN can also communicate with the AF in the HPLMN.
  • the UE and the UPF network element can establish a data connection session (such as a protocol data unit (PDU) session, or other sessions, such as an IP-CAN session, etc.).
  • a data connection session such as a protocol data unit (PDU) session, or other sessions, such as an IP-CAN session, etc.
  • PDU protocol data unit
  • the following is an explanation method, using a PDU session.
  • QoS flow is the smallest granularity that distinguishes QoS.
  • the QoS flow can be a QoS flow that supports guaranteed bit rate (GBR) QoS, or GBR QoS flow, or a QoS flow that supports non guaranteed bit rate (non-GBR) QoS, or QoS flow. non-GBR QoS flow.
  • a PDU session can include multiple QoS flows, for example, it supports up to 64 QoS flows.
  • Each QoS flow has its own corresponding QoS flow identifier (QoS flow ID, QFI) to distinguish different QoS flows.
  • QFI QoS flow ID
  • User plane service flows with the same QFI can be mapped to the same QoS flow to process them using the same service forwarding processing method (such as scheduling).
  • Figure 4 is a schematic diagram of a PDU session.
  • a PDU session can correspond to multiple radio bearers (radio bearers, RBs) on the air interface, and a radio bearer can include one or Multiple QoS flows, or carry one or more QoS flows.
  • QoS configuration is at the QoS flow level, that is, QoS flow is used as the granularity for configuration.
  • Figure 5 is a schematic diagram of the QoS flow architecture. As shown in Figure 5, the characteristics of the QoS flow can be represented by some parameters.
  • the SMF network element configures these parameters to pre-configure, establish or modify the corresponding QoS flow. For example, for a QoS flow, these parameters include: QoS configuration (QoS profile) on the RAN device side, QoS rules (QoS rule) on the UE side, and uplink packet detection rules (packet detection rule, PDR) and downlink PDR.
  • QoS configuration QoS profile
  • QoS rules QoS rule
  • PDR uplink packet detection rules
  • QoS configuration includes uplink and/or downlink QoS configuration, which is configured by the SMF network element to the RAN device through the N2 interface, or is pre-configured by the RAN device.
  • the QoS configuration may include: 5G quality identity (5QI), assignment and retain priorities (ARP), guaranteed flow bit rate (GFBR), Maximum flow bit rate (MFBR), maximum packet loss rate (MPLR), and reflective QoS attribute (RQA).
  • 5G quality identity 5G quality identity
  • ARP assignment and retain priorities
  • GFBR guaranteed flow bit rate
  • MFBR Maximum flow bit rate
  • MPLR maximum packet loss rate
  • RQA reflective QoS attribute
  • 5QI is used to indicate the wireless characteristics of this QoS flow.
  • 5QI includes at least one of the following: resource type, priority, data delay budget (PDB), packet error rate (packet error rate, PER), average window, or maximum data burst (maximum data burst, MDB).
  • the resource type is used to indicate the type of the QoS flow, such as GBR QoS flow or non-GBR QoS flow.
  • the priority is used to indicate the scheduling priority of the QoS flow on the air interface. Specifically, it can be the priority between QoS flows of different UEs, or the priority between different QoS flows of the same UE.
  • the PDB is used to indicate the upper limit of time that the data packet of this QoS flow may be delayed between the UE and the UPF network element (the UPF network element serving as the N6 termination point).
  • PDB can include: access network data delay (AN PDB) and core network data delay (CN PDB).
  • AN PDB is the data delay between UE and AN, that is, RAN equipment.
  • CN PDB is the data delay between AN and the UPF network element as the N6 termination point.
  • AN PDB can be determined by subtracting CN PDB from PDB.
  • the averaging window is the time period used to determine the GFBR and MFBR of a GBR QoS flow.
  • MDB is used to indicate that AN needs services within the cycle of AN PDB, or the maximum amount of data that needs to be transmitted.
  • ARP is used to indicate the priority of the QoS flow on the next generation (NG) interface. Specifically, it can be the priority between QoS flows of different UEs, or the priority between different QoS flows of the same UE.
  • GFBR is used to indicate the guaranteed data rate for GBR QoS flows, including the guaranteed data rate for upstream and the guaranteed data rate for downlink.
  • MFBR is used to indicate the maximum data rate for GBR QoS flows, including the maximum data rate for upstream and the maximum data rate for downstream.
  • MPLR is used to indicate the maximum packet loss rate that a QoS flow can tolerate. MPLR may only be used for GBR QoS.
  • the reflective QoS attribute is used to indicate whether the upstream of a non-GBR QoS flow obeys mirror mapping, that is, whether the upstream QoS rules can be derived through reflection of the downstream QoS rules.
  • QoS rules are mainly used for classifying and marking uplink user plane data services performed by the UE, for example, associating uplink data to corresponding QoS flows according to QoS rules.
  • the QoS rule may include: the QFI of the QoS flow associated with the QoS rule, the packet filter set (filter list) corresponding to the QoS flow, and the priority of the QoS flow.
  • the packet filter set is mainly used to associate upstream data with the corresponding QoS flow.
  • Figure 6 is the second architectural diagram of the QoS flow.
  • the UE will The upstream data packet is associated with the QoS flow corresponding to the QoS rule. If the ID of the uplink data packet does not match the ID in the packet filter set, that is, the uplink data packet does not match the corresponding QoS rule, the UE discards the uplink data.
  • QoS rules can be communicated to the UE by the SMF network element through the N1 interface. Configuration, or pushed out by the UE through the reflective QoS mechanism.
  • a QoS flow can have multiple QoS rules.
  • Each PDU session must be configured with a default QoS rule, and the default QoS rule is associated with a QoS flow.
  • the uplink PDR and downlink PDR are configured by the SMF network element to the UPF network element through the N4 interface.
  • the uplink PDR is used by the UPF network element to perform classification and labeling of uplink user plane data services. For example, as shown in Figure 6, the UPF network element associates the uplink data to the corresponding QoS flow based on the uplink PDR.
  • the downlink PDR is used by the UPF network element to perform classification and marking of downlink user plane data services. For example, as shown in Figure 6, the UPF network element associates the downlink data to the corresponding QoS flow based on the downlink PDR. If a data packet does not match any uplink PDR or downlink PDR, the UPF network element discards the data packet.
  • the data flow is an IP flow at the IP layer
  • the data flow is a QoS flow at the non-access stratum (NAS) layer
  • the data flow is a data resource at the access stratum (AS) layer.
  • Bearer data radio bearer, DRB. Therefore, there are two levels of mapping relationships between QoS flows, namely, the mapping relationship between QoS flows and IP flows, and the mapping relationship between QoS flows and DRBs.
  • the mapping mechanism is the process of associating business data flows with the QoS flows that are considered to transport the business data flows.
  • the service data flow is defined in the PCC rules through the service data flow (SDF) model.
  • SDF service data flow
  • Step 1 session mapping, that is, one-to-one correspondence between application function session (AF session) and PDU session.
  • Step 2 PCC rule authorization, that is, the PCF network element authorizes the PCC rule and allocates QoS parameters to the PCC rule.
  • Step 3 QoS flow mapping, that is, the association of PCC rules with QoS flows in the PDU session.
  • QoS flow mapping is performed using the following mapping parameters: 5QI, ARP, QoS notification control (QNC) (if available in PCC rules), priority (if available in PCC rules), averaging window (if available in PCC rules) ), and maximum data burst volume (MDBV) (if available in PCC rules).
  • QNC QoS notification control
  • priority if available in PCC rules
  • MDBV maximum data burst volume
  • the SMF network element can determine whether there is a QoS flow with the same QoS parameters as the mapping parameters in step 3 above. If such a QoS flow does not exist, the SMF network element uses the parameters in the PCC rule to determine the QoS parameters of the new QoS flow, and establishes a new QoS flow based on the QoS parameters. At this time, the PCC rules are mapped to the new QoS flow. If there is a QoS flow with the same QoS parameters as the mapping parameters, the SMF network element maps the PCC rule to the existing QoS flow. In addition, if the PCF network element requests that the PCC rule be mapped to the QoS flow associated with the default QoS rule, the SMF network element may not perform the above judgment.
  • mapping is only an exemplary description method, and it can also be replaced by any other possible description, such as “binding”, “correspondence”, etc., and there is no specific limitation on this.
  • Time sensitive network Refer to Figure 7 below for introduction.
  • FIG. 7 is a schematic diagram of the architecture of the interoperability between the TSN system and 5GS.
  • 5GS including TSN translator (TT)
  • TT TSN translator
  • 5GS can exchange control plane information with nodes in the TSN system through TSN AF (AF capable of communicating with TSN), including: 5GS capability information, TSN configuration information, time scheduling information of TSN input and output ports, and time synchronization Information etc.
  • TSN AF AF capable of communicating with TSN
  • 5GS uses device-side TSN translator (DS-TT) on the UE side and network-side TSN translator (NW-TT) on the UPF network element side.
  • DS-TT may be located within the UE or outside the UE.
  • NW-TT can be located within the UPF network element.
  • the centralized network configuration (CNC) of the TSN system can configure the arrival time and departure time of the corresponding TSN flow to 5GS for 5GS according to the TSN flow granularity, so that DS-TT or NW-TT can transfer the data of the TSN flow
  • the packet is buffered until the time it leaves 5GS and then sent out, eliminating the impact of uncertainty delays caused by air interface and wired transmission between UE and UPF, ensuring end-to-end, such as from TSN talker to TSN listener ( There is a deterministic delay between listeners).
  • Figure 8 is a schematic diagram of downlink transmission.
  • the downlink data packets are transmitted from the TSN system to the NW-TT, and are transmitted by the NW-TT.
  • DS-TT caches the data packet to the sending time window configured by the CNC so that the data packet can be sent out when it leaves 5GS.
  • 5GS in order to catch up with the sending time window configured by the CNC, 5GS needs to determine the corresponding PDB according to the data packet requirements, and ensure that the transmission time of the data packet between the UE and the UPF network element is not greater than the PDB, ensuring that the data packet can be advanced in advance Arrives at DS-TT and buffers at DS-TT until the sending time window.
  • TSN AF can obtain the scheduling information of the TSN flow from the CNC and determine the time when the TSN flow arrives at 5GS, that is, the time when the TSN flow arrives at the NW-TT inlet in the downstream direction, or in other words The time when the first data packet in a burst of data of the TSN flow arrives at the NW-TT inlet, that is, the downlink (down link, DL) burst arrival time (DL burst arrival time, DL BAT)).
  • TSN AF can send DL BAT to SMF network element through PCF network element.
  • a time sensitive communication assistance container (TSCAC) carrying the DL BAT is sent to the SMF network element through the PCF network element.
  • TCAC time sensitive communication assistance container
  • the SMF network element can determine the time for the downlink TSN flow to arrive at the RAN device based on the DL BAT and the downlink core network data delay (DL CN PDB), such as adding the DL BAT and DL CN PDB, or the burst of the downlink TSN flow.
  • DL CN PDB downlink core network data delay
  • the SMF network element carries this information in the TSCAI.
  • TSCAI includes: flow direction, period, and BAT.
  • the flow direction is used to indicate whether the TSC flow is an upstream TSC flow or a downstream TSC flow.
  • Period refers to the interval between two adjacent BATs.
  • the BAT can be used to indicate the time when the first packet in the burst data of the TSN flow in the downlink direction arrives at the RAN device.
  • the BAT may be used to indicate the latest possible time for the UE to leave the first packet in the burst of data for the uplink TSN flow.
  • the SMF network element sends TSCAI to the RAN device so that the RAN device reserves resources in advance based on the TSCAI to ensure that the transmission time between the UE and the UPF network element is not greater than the PDB.
  • the SMF network element can map the delay-sensitive service to a QoS flow, that is, there is a corresponding relationship between the QoS flow and the delay-sensitive service, such as a one-to-one correspondence, to ensure that the delay-sensitive service Data streams can be transmitted normally in 5GS.
  • FIG. 9 is a schematic diagram of the 5GS architecture for TSC services in non-TSN scenarios.
  • the time sensitive communication and time synchronization function (TSCTSF) network element can enable TSC services in non-TSN scenarios.
  • TSC business.
  • the TSCTSF network element can determine TSCAC based on the TSC service type parameters provided by the AF/NEF network element.
  • the TSCTSF network element sends the TSCAC to the PCF network element to configure DS-TT and NW-TT to ensure delay certainty.
  • the specific principle is similar to the above-mentioned TSN, which can be understood by reference and will not be repeated.
  • XR extended reality
  • tactile Internet has been Gradually applied to 5GS.
  • VR virtual reality
  • VR has been applied to education, entertainment, military, medical care, environmental protection, transportation, public health and other fields closely related to people's production and life.
  • VR has the advantages of multiple viewing angles and strong interactivity, providing users with a brand new visual experience.
  • tactile Internet can realize remote touch applications and remote control of machines, and realize remote perception in terms of vision, hearing, touch, and smell.
  • Tactile Internet has great room for development in industrial automation, medical care, distance education and other related fields. It provides users with a new tactile interactive experience and has great application value and commercial potential.
  • Figure 10 is a schematic diagram of the correspondence between data packets and frames. As shown in Figure 10, the RAN device receives data packet #0 in frame #0, decodes and sends data packet #0 to the UE in frame #1, and the UE receives data packet #0 in frame #1. 2 Rendering displays the data corresponding to packet #0.
  • the RAN device receives data packet #1 in frame #1 and frame #2, decodes and sends data packet #1 to the UE in frame #3, and the UE renders and displays the data corresponding to data packet #1 in frame #4.
  • a display lag occurs, that is, because the reception time of data packet #1 is later than the time when it should be decoded and rendered, the data that should be displayed in frame #3 is delayed until frame #4 is displayed, making Frame #3 still displays the data of the previous frame, and the display screen freezes.
  • the RAN device receives packet #2 in frame #2 and frame #3, receives packet #3 in frame #3, decodes and sends packet #2 and packet #3 to the UE in frame #4.
  • the data corresponding to data packet #2 is discarded.
  • the UE renders and displays the data corresponding to data packet #3 in frame #4, that is, a display jump occurs (that is, the data is lost). frame), the data that should be displayed in frame #4 is not displayed, but the data that should be displayed in the next frame is displayed, and the display screen freezes.
  • the current solution is to target services with integrated transmission requirements (such as data packets in the same frame).
  • the business layer notifies the CN of the integrity transmission requirements, and the network elements of the CN, such as SMF Network elements are marked in the QoS configuration.
  • the SMF network element sends the QoS configuration to the RAN device so that the RAN device transmits data packets belonging to the same frame as a whole.
  • the expression form of integrity transmission can be: content integrity transmission, task integrity transmission, event integrity, or object/class integrity.
  • content integrity can be the intrinsic correlation between multiple dimensions of information, such as multiple data packets corresponding to the same picture frame, the basic layer and enhancement layer corresponding to the same picture frame, or multiple data packets corresponding to the picture frame and audio, etc. wait.
  • Task/Event/Object Integrity can be data within the same task that has integrity requirements. For example, in the tactile Internet, when a robotic arm is remotely operated to play basketball, during transmission, multiple data packets corresponding to video, audio, motion, touch, smell and other information have dependencies and correlations.
  • frame information can be added to the data packet to indicate the correspondence between the frame and the data packet, that is, data packets with the same frame information belong to the same frame.
  • the RAN device can determine which data packets belong to the same frame by parsing the data packets, so that the data corresponding to these data packets can be displayed in the same frame.
  • the data corresponding to each frame can be displayed or played in order to slow down Solve the situation of frame loss, frame jump, or frame lag, or inconsistency between picture and audio, etc. to ensure the QoS quality of the business.
  • this method requires the RAN device to identify the header information corresponding to each data packet, which is very expensive.
  • WiFi wireless fidelity
  • V2X vehicle to everything
  • D2D device-to-device
  • 4G such as LTE systems
  • WiMAX global interoperability for microwave access
  • 5G such as NR systems
  • future communication systems such as the 6th generation , 6G) mobile communication systems, etc.
  • FIG. 11 is a schematic architectural diagram of a communication system to which the communication method provided by the embodiment of the present application is applicable.
  • this communication system can be applied to the above-mentioned 5GS, and mainly includes: terminals, access network equipment, policy control network elements, and session management network elements.
  • the policy control network element can be a PCF network element
  • the session management network element can be an SMF network element.
  • the policy control network element can be the PCF network element in the VPLMN
  • the session management network element can be the SMF network element in the VPLMN.
  • the policy control network element can be the PCF network element in HPLMN
  • the session management network element can be the SMF network element in HPLMN.
  • the terminal or access network device can communicate with the policy control network element and session management network element through the AMF network element and SMF network element in the VPLMN.
  • the relevant functions of terminals, access network equipment, policy control network elements, and session management network elements can be referred to the relevant introduction in the above 5GS and will not be described again.
  • the communication system can also be applied to future communication systems, such as 6G communication systems, without specific limitations.
  • the policy control network element can configure the PER corresponding to the service for the terminal or access network device through the session management network element, for example, the PER that meets the frame loss rate limit of the service.
  • the policy control network element can also configure the relevant information of the service for the terminal or access network device through the session management network element, so that the terminal or access network device can determine the PER corresponding to the service accordingly.
  • the terminal or access network equipment can directly process the data packets of the service based on the PER without identifying the header information corresponding to the data packets, thereby ensuring the frame loss rate of the service through lower overhead, thereby ensuring the QoS quality of the service. .
  • the UE may be a terminal in the above communication system
  • the RAN device may be an access network device in the above communication system
  • the SMF network element may be a session management network element in the above communication system
  • the PCF network element may be The policy control network elements in the above communication system. Details are introduced below.
  • FIG. 12 is a schematic flowchart 1 of the communication method provided by the embodiment of the present application.
  • the PCF network element can send the PER corresponding to the service to the SMF network element.
  • the SMF network element uses the QoS flow as the granularity to configure the PER for the UE or RAN device, so that the UE or RAN device processes the QoS flow corresponding to the PER. of the data packets of the service to ensure the frame loss rate of the service, thereby ensuring the QoS quality of the service.
  • the UE can access the 5G network and initiate a session request.
  • the SMF network element can establish a corresponding data connection session, such as a PDU session, for the UE to ensure that user plane data can be transmitted normally.
  • a PDU session can refer to the definition in Chapter 4.3.2 of TS23.502 in the 3rd generation partnership project (3GPP), which will not be described again.
  • 3GPP 3rd generation partnership project
  • the AF sends the relevant information of the service and/or the PER corresponding to the service to the PCF network element.
  • the PCF network element receives the relevant information of the service from the AF and/or the PER corresponding to the service.
  • the business-related information may be related to the needs of the business.
  • the relevant information of the service may include at least one of the following items of the service: frame characteristic information or frame loss rate limit information.
  • the frame loss rate limit information of the service can be used to indicate that the frame loss rate of the service is less than or equal to the frame loss rate limit of the service, that is, the maximum frame loss rate that the service can accept.
  • the frame loss rate limit of this service is A%, which means that a maximum of A frames can be lost in every 100 frames, and the value of A is greater than 0.
  • the frame loss rate of this service is limited to 10%, which means that a maximum of 1 frame can be lost every 10 frames.
  • the frame loss rate of this service is limited to 5%, which means that a maximum of 1 frame can be lost every 20 frames.
  • the frame loss rate limit of the service is A, which is expressed in the default number of frames. At most A frames can be lost.
  • the default unit is 50 frames, and A is 5, which means that a maximum of 5 frames can be lost every 50 frames.
  • the default unit is 100 frames, and A is 5, which means that a maximum of 5 frames can be lost every 100 frames.
  • one expression form of the frame loss rate limit of this service is: one frame is allowed to be lost for every A frame. For example, A is 10, which means that a maximum of 1 frame can be lost every 10 frames.
  • the frame characteristic information of the service can describe the frame characteristics of the service.
  • the frame characteristic information of the service can be used by the PCF network element to determine the number of data packets in the frame of the service (recorded as the number of data packets in the frame, the same below), such as the maximum number of data packets in the frame, or the average number of data packets in the frame, so that PCF
  • the network element can convert the frame loss rate of the service into the packet loss rate of the service, that is, PER, based on the number of data packets in the frame.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum data packet quantity, maximum data burst, or packet period.
  • the frame period is similar to the period in TSCAI mentioned above, and is used to indicate the interval between two adjacent frames of the service, that is, the interval between two adjacent bursts.
  • This BAT is similar to the BAT in the above-mentioned TSCAI.
  • the BAT can be used to indicate the time when the first data packet in a burst of data (or a frame) of the service arrives at the RAN device, that is, the downlink BAT.
  • BAT can also be used to indicate the time when the first data packet in a burst of data (or a frame) of the service leaves the UE, such as the latest possible time, that is, the uplink BAT.
  • the maximum number of data packets can refer to the maximum number of data packets within the unit time (or time window) of a frame, and the unit time can be less than or equal to the frame period.
  • the maximum data burst amount can refer to the maximum data amount within the unit time (or time window) of a frame, or the maximum data flow.
  • Packet period can refer to the interval between two adjacent data packets within a frame.
  • the PCF network element can select the parameters it supports to determine the number of data packets in the frame based on the various parameters in the frame characteristic information of the service, so as to avoid causing problems due to the PCF network element not supporting some of the above parameters.
  • the number of packets within a frame cannot be determined to ensure the reliability of the scheme.
  • MTU maximum transmission unit
  • the MTU may be preconfigured by the PCF network element, or reported by the SMF network element to the PCF network element.
  • the PCF network element determines the number of data packets in the frame by itself, and is not a limitation.
  • the PCF network element can also directly obtain the number of data packets in the frame from the AF.
  • the PER corresponding to the business can be determined based on the relevant information of the above business.
  • the PCF network element can determine the PER corresponding to the service based on the frame loss rate limit information of the service. For example, if the frame loss rate limit of the service is A%, it is determined that the PER is also A%.
  • the PCF network element can also determine the PER corresponding to the service based on the frame loss rate limit information of the service and the number of data packets in the frame. For example, if the frame loss rate of the service is limited to A%, the number of intra-frame data packets is B, and B is a positive integer, then the PER is determined to be A/B%.
  • PER of A% is a relatively loose packet loss rate condition
  • PER of A/B% is a relatively strict packet loss rate condition.
  • Each of the two constitutes a range, such as [A/B%, A%], such that The PCF network element can select a suitable PER within this range, that is, A/B% ⁇ C ⁇ A%, where C is the specified value of PER to take into account both overhead and business requirements.
  • the PER by limiting the frame loss rate of the service to A%, it is necessary to first determine that at most one frame can be lost every few frames.
  • the PER is A%
  • the frame loss rate of the service is limited to 10% and the PER is 10%, then these 50 data packets can lose up to 5 data packets.
  • the frame loss rate of the service is limited to 10% and the PER is 10%, then these 50 data packets can lose up to 5 data packets.
  • it is necessary to ensure that these 5 data packets belong to the same frame that is, 1 frame is lost in 10 frames to meet the frame loss rate limit of the service. Otherwise, if these 5 packets belong to different frame, the number of lost frames in these 10 frames will be greater than 1, thus failing to meet the frame loss rate limit of the service.
  • the PCF network element determines the PER on its own, and is not a limitation.
  • the AF can pre-configure the PER corresponding to the service, or the AF can determine the PER corresponding to the service based on the relevant information of the service. In this way, the PCF network element can directly obtain the PER corresponding to the service from the AF, thereby reducing the cost of the PCF network element and improving operating efficiency.
  • AF can store the relevant information of the service/the PER (requirement) corresponding to the service into the UDR network element, such as through NEF.
  • the PCF network element can obtain the relevant information of the service/the PER (requirement) corresponding to the service from the UDR network element.
  • the PCF network element can send service description information, such as application identifiers or service data flow filters, to the UDR network element.
  • the UDR network element returns the relevant information of the service/the PER corresponding to the service to the PCF network element according to the service description information.
  • the AF can reuse the existing message, such as calling any possible service-oriented interface service, such as through the policy authorization (Npcf_PolicyAuthorization) service.
  • Npcf_PolicyAuthorization policy authorization
  • the AF can also send the relevant information of the service and/or the PER corresponding to the service to the PCF network element through a new service, without any specific limitation.
  • the PCF network element sends PER to the SMF network element.
  • the SMF network element receives the PER from the PCF network element.
  • PER can be carried in policy and charging control (PCC) rules to reuse existing cells, reduce communication overhead, and improve communication efficiency.
  • PCC policy and charging control
  • PER can also be carried in any other possible information element, and there is no specific limitation on this.
  • S1204 The SMF network element maps the PCC rule to the QoS flow.
  • PCC rules are rules at the granularity of service data flow (SDF), and RAN equipment schedules services at the granularity of QoS flows
  • the SMF network element needs to map the SDF to the corresponding QoS flow, that is, the PCC rules Map to the corresponding QoS flow (establish the corresponding relationship between PCC rules and the corresponding QoS flow) to ensure the QoS quality of the service with the QoS flow as the granularity.
  • the SMF network element uses the PER in the PCC rule as a mapping parameter.
  • the SMF network element can determine whether the PER in the PCC rule and the PER in the QoS flow parameters are the same. If the PER in the PCC rule is the same as the PER in the QoS flow parameter, map the PCC rule to the QoS flow corresponding to the QoS flow parameter to reuse the existing QoS flow and reduce overhead.
  • other binding parameters in the PCC rules need to be the same.
  • the SMF network element can create a QoS flow and map the PCC rule to the created QoS flow binding to prevent the PCC rule from affecting the existing QoS flow.
  • the parameters of QoS flow #1 include: PER#1
  • the parameters of QoS flow #2 include: PER#2
  • the PCC rule includes: PER#1.
  • the SMF network element determines that PER#1 in the parameters of QoS flow #1 is the same as PER#1 in the PCC rule, and maps the PCC rule to QoS flow #1.
  • the parameters of QoS flow #1 include: PER#1
  • the parameters of QoS flow #2 include: PER#2
  • the PCC rule includes: PER#3.
  • the SMF network element determines that the PER in all QoS flow parameters is different from the PER#3 in the PCC rule, thereby creating a new QoS flow #3 and mapping the PCC rule to QoS flow #3.
  • the SMF network element may not perform the matching of the above QoS flow parameters with the PCC rules. configuration, directly create an independent QoS flow, and map PCC rules to the independent QoS flow. Optionally, in this case, no other PCC rules are mapped to this QoS flow.
  • the SMF network element sends the corresponding relationship between PER and QoS flow to the RAN device.
  • the RAN device receives the correspondence between the PER and the QoS flow from the SMF network element.
  • the PER may be the PER in the PCC rule mapped in S1204.
  • the SMF network element sends the QoS flow identification information and the PER to the RAN device, and the QoS flow identification information corresponds to the PER by default.
  • This correspondence can be carried in existing messages, such as calling any possible service, to achieve signaling multiplexing and improve communication efficiency.
  • the corresponding relationship can also be carried in a newly created message, and there is no specific limitation on this.
  • the SMF network element can also send indication information #1 to the RAN device to indicate that the RAN device needs Packets are lost within the same frame to meet the frame loss rate limit of the service.
  • the SMF network element may not send indication information #1 to the RAN device, and the RAN device needs to lose packets in the same frame by default.
  • the RAN device processes the data packet of the service corresponding to the QoS flow according to the PER.
  • the RAN device can determine the PER of the QoS flow based on the corresponding relationship between the PER and the QoS flow. In this way, the RAN device can determine the link configuration corresponding to the QoS flow, or the link layer configuration, based on the PER. For example, the configuration of radio link control (RLC) and/or the configuration of hybrid automatic repeat request (HARQ), or any other possible configuration. In this way, the RAN device can send the data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the packet loss rate of the service can meet the requirements of the PER, thereby ensuring the frame loss rate of the service.
  • RLC radio link control
  • HARQ hybrid automatic repeat request
  • the SMF network element sends the corresponding relationship between PER and QoS flow to the UE.
  • the UE receives the correspondence between the PER and the QoS flow from the SMF network element.
  • the corresponding relationship between the PER and the QoS flow can be carried in existing messages, such as any possible NAS messages, to achieve signaling multiplexing and improve communication efficiency.
  • the corresponding relationship can also be carried in a newly created message, and there is no specific limitation on this.
  • the SMF network element can also send indication information #1 to the UE to instruct the UE to send the packet loss rate that needs to be Packets are lost within the same frame to meet the frame loss rate limit of the service.
  • the SMF network element may not send indication information #1 to the UE, and the UE needs to lose packets in the same frame by default.
  • S1208 The UE processes the data packet of the service corresponding to the QoS flow according to the PER.
  • the UE can determine the PER of the QoS flow based on the corresponding relationship between the PER and the QoS flow. In this way, the UE can determine the link configuration corresponding to the QoS flow based on the PER. For example, RLC configuration and/or HARQ configuration, or any other possible configuration. In this way, the UE can send data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the packet loss rate of the service can meet the requirements of the PER, thereby ensuring the frame loss rate of the service.
  • S1205-S1206 and S1207-S1208 are optional steps.
  • the SMF network element can only send the corresponding relationship to the RAN, or the SMF network element can only send the corresponding relationship to the UE.
  • the PER in the corresponding relationship sent by the SMF network element to the RAN is consistent with the SMF network element.
  • the PERs in the corresponding relationship sent by the UE to the UE may be the same or different, and there is no specific limitation on this.
  • FIG. 13 is a schematic flowchart 2 of the communication method provided by the embodiment of the present application.
  • the PCF network element can send the PER corresponding to the service and the execution conditions of the PER (recorded as execution conditions) to the SMF network element.
  • SMF network elements use QoS flows as granularity to configure PER and execution conditions for UE or RAN equipment.
  • the UE or RAN device can obtain the actual packet loss rate or frame loss rate of the service based on the execution conditions, and dynamically select the PER currently corresponding to the QoS flow based on the packet loss rate or frame loss rate to ensure that the PER can meet The current needs of the business, thereby ensuring the frame loss rate of the business.
  • the AF sends the relevant information of the service and/or the PER corresponding to the service to the PCF network element.
  • the PCF network element receives the relevant information of the service from the AF and/or the PER corresponding to the service.
  • the service-related information may be related to the requirements of the service, including at least one of the following: frame loss rate limit information, or frame characteristic information.
  • frame loss rate limit information of the service please refer to the relevant introduction in S1202 above, and will not be described again.
  • the frame characteristic information of the service may include at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service may include at least one of the following: BAT.
  • BAT can be used to indicate the arrival time of the first data packet of the service.
  • the PCF network element can determine the PER based on the relevant information of the service. For specific implementation principles, you can also refer to the relevant introduction in 1202 above, which will not be described again.
  • the PCF network element can also determine the execution conditions based on the relevant information of the service.
  • the execution conditions can be used to indicate the specified value of PER in the case of packet loss or frame loss.
  • the execution condition can be used to indicate one of the following: the specified value of PER is negatively correlated with the number of lost frames, the specified value of PER is negatively correlated with the number of lost packets, or the specified value of PER is negatively correlated with the packet loss rate wait.
  • the number of lost frames can be understood as the actual number of lost frames or the instantaneous number of lost frames
  • the number of lost packets can be understood as the actual number of lost frames or the number of instantaneous lost packets
  • the number of lost packets can be understood as the actual number of lost frames or the number of instantaneous lost frames.
  • PER#n number of frames lost/number of packets lost/packet loss rate #n
  • n is an integer greater than 1
  • i is an integer ranging from 1 to n.
  • This execution condition is used to indicate that as one or more of the actual number of frames lost, the number of packets lost, and the frame loss rate increases within the scope allowed by the business, the PER can also gradually change from a relatively loose packet loss rate condition. It becomes a relatively strict packet loss rate condition, so that when frame or packet loss increases, the UE or RAN device can alleviate the frame or packet loss by increasing the PER limit to ensure the QoS quality of the service (see S1306 and S1308).
  • a PER of 10% corresponds to 1 packet loss
  • a PER of 8% corresponds to 2 packet losses
  • a PER of 6% corresponds to 3 packet losses
  • a PER of 4% corresponds to 4 packet losses.
  • a PER of 2% corresponds to 5 packet losses.
  • this execution condition can also be used to indicate that in the case of packet loss within the same frame, the specified value of PER can remain unchanged. In other words, for a frame that has already experienced packet loss, this frame has been lost. At this time, if this frame continues to lose packets, it will not affect the frame loss rate of the service. Therefore, the specified value of PER can be kept unchanged to avoid increasing invalid overhead and improve the operating efficiency of the device.
  • the PCF network element sends the PER and execution conditions to the SMF network element.
  • the SMF network element receives the PER and execution conditions from the PCF network element.
  • PER and execution conditions can be carried in PCC rules, such as the same cell or different cells of PCC rules, to reuse existing cells, reduce communication overhead, and improve communication efficiency.
  • PCC rules such as the same cell or different cells of PCC rules
  • PER and execution conditions can also be carried in any other possible information element, and there is no specific limitation on this.
  • the PCF network element can also send indication information #2 to the UE or RAN device through the SMF network element.
  • Instruction information #2 can indicate the above-mentioned frame characteristic information, such as frame period and BAT, and is used by the UE or RAN device to determine the data packets in the same frame, such as determining how long after the first data packet arrives, all arriving data packets are
  • the UE or RAN can calculate packet loss at the frame granularity. In this way, if the UE or RAN device determines that packets are lost within the same frame, the specified value of PER remains unchanged according to the above execution conditions.
  • the indication information #2 may also indicate at least one of the following: data packet period, maximum number of data packets, maximum data burst amount, or number of data packets within a frame, to assist the UE or RAN device in determining the number of data packets within the same frame. data pack.
  • Instruction information #2, the above-mentioned PER and the execution conditions of the PER may be carried in the same cell, such as PCC rules, or may be carried in different cells, and there is no specific limitation on this.
  • the UE or RAN device can also configure the frame period and BAT locally by default.
  • the PCF network element may not send instruction information #2 to save overhead.
  • S1304 The SMF network element maps the PCC rule to the QoS flow.
  • the SMF network element can use the PER+ execution condition in the PCC rule as a mapping parameter to map the PCC rule to the QoS flow. For example, the SMF network element can determine whether the PER+ execution condition in the PCC rule is the same as the PER+ execution condition in the QoS flow parameter. If the PER+ execution condition in the PCC rule is the same as the PER+ execution condition in the QoS flow parameter, map the PCC rule to the QoS flow corresponding to the QoS flow parameter to reuse the existing QoS flow and reduce overhead.
  • other mapping parameters in the PCC rules need to be the same. For the specific implementation principles of other mapping parameters, please refer to the relevant introduction in "3.
  • the SMF network element can create a QoS flow and map the PCC rules to the created QoS flow to prevent the PCC rules from affecting the existing QoS flows. .
  • the SMF network element can also map PCC rules (PCC rules containing execution condition #1+PER) to a separate QoS flow.
  • PCC rules containing execution condition #1+PER
  • the SMF network element creates an independent QoS flow and maps the PCC rule to the independent QoS flow. flow.
  • the SMF network element can also use the mapping method introduced in S1204 above to map the PCC rules to the corresponding QoS flows. For specific implementation principles, please refer to the relevant introduction in S1204 above, which will not be described again.
  • the SMF network element sends execution conditions and the corresponding relationship between PER and QoS flows to the RAN device.
  • the RAN device receives the execution conditions from the SMF network element and the corresponding relationship between PER and QoS flows.
  • the SMF network element sends QoS flow identification information, PER and the execution conditions to the RAN device, and the QoS flow identification information is the same as the PER default correspond.
  • Execution conditions and the corresponding relationship can be carried in existing messages, such as any possible service interface messages to achieve signaling reuse and improve communication efficiency.
  • the execution condition and the corresponding relationship can also be carried in a newly created message, without any specific limitation.
  • the SMF network element can also send indication information #1 to the RAN device to indicate that the RAN device needs Packets are lost within the same frame to meet the frame loss rate limit of the service.
  • the instruction information #1 and the above-mentioned execution conditions and corresponding relationships may be carried in the same message, or in different messages, and there is no specific limitation on this.
  • the SMF network element may not send indication information #1 to the RAN device, and the RAN device needs to lose packets in the same frame by default.
  • the SMF network element can also forward the indication information #2 to the RAN device.
  • the instruction information #2 and the above-mentioned execution conditions and corresponding relationships may be carried in the same message, or may be carried in different messages, and there is no specific limitation on this.
  • the RAN device processes the data packet of the service corresponding to the QoS flow according to the PER indicated by the execution condition.
  • the RAN device can determine the PER of the QoS flow based on the corresponding relationship.
  • the RAN device can determine the current PER according to the execution conditions, and determine the link configuration (uplink or downlink link configuration) corresponding to the QoS flow based on the PER. For example, RLC configuration and/or HARQ configuration, or any other possible configuration.
  • the RAN device can send the data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the packet loss rate of the service can meet the requirements of the PER, thereby ensuring the frame loss rate of the service.
  • the RAN device can also adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to send the QoS flow based on the adjusted link resources.
  • the QoS flow corresponds to the data packet of the service to ensure that the frame loss rate of the service always meets the frame loss rate limit.
  • the RAN device can select a relatively loose PER based on the execution conditions, and determine the link configuration corresponding to the QoS flow based on the relatively loose PER.
  • the link configuration is also relatively loose, for example, the link resources indicated by the link configuration are relatively few.
  • the RAN device can determine which data packets of the corresponding QoS flow belong to the same frame based on the frame period and BAT; or, the RAN device can also determine which data packets of the corresponding QoS flow belong to the same frame based on the frame information in the data packet.
  • the RAN device can determine which data packets within the same frame were not sent successfully (ie, packet loss/frame loss) to record one or more of the current packet loss number, packet loss rate, and frame loss number of the QoS flow .
  • the RAN device can gradually adjust the relatively loose PER to the relatively strict PER according to the execution conditions, that is, gradually reduce the specified value of PER.
  • the RAN device can set the link configuration corresponding to the QoS flow based on the specified value after the PER is reduced.
  • the adjusted link configuration is also relatively strict. For example, the link configuration indicates relatively more link resources to meet the relatively strict PER.
  • the RAN device can also keep the specified value of PER unchanged according to the execution conditions. That is, the RAN device can process the data of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • the SMF network element sends execution conditions and the corresponding relationship between PER and QoS flows to the UE.
  • the UE receives the execution conditions from the SMF network element and the corresponding relationship between PER and QoS flow.
  • the execution conditions and the corresponding relationship between PER and QoS flows can be carried in existing messages, such as any possible service-oriented interface messages, to achieve signaling multiplexing and improve communication efficiency.
  • the execution conditions and the corresponding relationship between the PER and the QoS flow can also be carried in the newly created message, and there is no specific limitation on this.
  • the SMF network element can also send indication information #1 to the UE to instruct the UE to send the packet loss rate that needs to be Packet loss within the same frame, To meet the frame loss rate limit of the business.
  • the instruction information #1 and the above-mentioned execution conditions and corresponding relationships may be carried in the same message, or in different messages, and there is no specific limitation on this.
  • the SMF network element may not send indication information #1 to the UE, and the UE needs to lose packets in the same frame by default.
  • the SMF network element can also forward the indication information #2 to the UE.
  • the instruction information #2 and the above-mentioned execution conditions and corresponding relationships may be carried in the same message, or may be carried in different messages, and there is no specific limitation on this.
  • S1308 The UE processes the data packet of the service corresponding to the QoS flow according to the PER indicated by the execution condition.
  • the UE can determine the PER of the QoS flow according to the corresponding relationship.
  • the UE can determine the current PER according to the execution conditions, and determine the link configuration (uplink link configuration) corresponding to the QoS flow based on the PER. For example, RLC configuration and/or HARQ configuration, or any other possible configuration.
  • the UE can send data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the packet loss rate of the service can meet the requirements of the PER, thereby ensuring the frame loss rate of the service.
  • the UE can also adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to send the QoS according to the adjusted link resources.
  • the UE can select a relatively loose PER based on the execution conditions, and determine the link configuration corresponding to the QoS flow based on the relatively loose PER.
  • the link configuration is also relatively loose, for example, the link resources indicated by the link configuration are relatively few.
  • the UE can determine which data packets of the corresponding QoS flow belong to the same frame based on the frame period and BAT; or, the UE can also determine which data packets of the corresponding QoS flow belong to the same frame based on the frame information in the data packet.
  • the UE can determine which data packets within the same frame were not sent successfully (i.e., packet loss/frame loss) to record one or more of the current packet loss number, packet loss rate, and frame loss number of the QoS flow. Afterwards, as the packet loss or frame loss recorded by the UE gradually increases, the UE can gradually adjust the relatively loose PER to the relatively strict PER according to the execution conditions, that is, gradually reduce the specified value of PER. In this way, the UE can set the link configuration corresponding to the QoS flow according to the specified value after the PER is reduced. At this time, the adjusted link configuration is also relatively strict. For example, the link configuration indicates relatively more link resources to meet the relatively strict PER.
  • the UE can also keep the specified value of PER unchanged according to the execution conditions. That is, the UE can process the data of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • the execution order between S1305-S1306 and S1307-S1308 is not limited.
  • S1305-S1306 and S1307-S1308 are optional steps.
  • the SMF network element can only send the execution conditions and the correspondence between PER and QoS flows to the RAN, or the SMF network element can only send the execution conditions and the correspondence between PER and QoS flows to the UE. relation.
  • the execution conditions sent by the SMF network element to the RAN and the execution conditions sent by the SMF network element to the UE may be the same, or they may be different.
  • the uplink PER value range may be different from the downlink PER value range. At this time, different PER value ranges may correspond to different PERs, that is, the PER sent by the SMF network element to the RAN and the PER sent by the SMF network element to the UE may also be different.
  • FIG. 14 is a schematic flowchart 3 of the communication method provided by the embodiment of the present application.
  • the PCF network element can send the PER and execution conditions corresponding to the service to the SMF network element.
  • SMF network elements use QoS flows as granularity to configure PER and execution conditions for UE or RAN equipment.
  • the UE or RAN device can select different PERs corresponding to the QoS flows at different times based on the execution conditions to ensure that the PER can meet the needs of the service at different times, thereby ensuring the frame loss rate of the service.
  • the AF sends the relevant information of the service/PER corresponding to the service to the PCF network element.
  • the PCF network element receives the relevant information of the service from the AF/the PER corresponding to the service.
  • the relevant information of the service may be related to the requirements of the service, including at least one of the following: frame loss rate limit information, or frame characteristic information.
  • frame loss rate limit information of the service please refer to the relevant introduction in S1202 above, and will not be described again.
  • the frame characteristic information of the service may include at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service may include at least one of the following: BAT, or time information.
  • BAT can be used to indicate the arrival time of the first data packet of the service.
  • the time information can be used to indicate the time of the service frame (recorded as frame time), such as the time when a certain downlink frame arrives at the RAN device, or the time when a certain uplink frame is sent from the UE.
  • the frame time can be characterized by absolute time. For example, the total duration of the service is 2 hours, and the indicated frame corresponds to which time within the 2 hours.
  • frame time can also be characterized by relative time.
  • the indicated frame is a frame corresponding to how long before or after a certain reference time of the service.
  • the frame time can be implicitly represented by the frame number.
  • the service includes N frames, the indicated frame is the i-th frame, N is a positive integer, and i ranges from 1 to N.
  • the frame time can also be implicitly represented by the sequence number offset of the frame.
  • the service includes N frames, and there are j frames between the indicated frame and the i-th frame. N is a positive integer, i ranges from 1 to N, j ranges from 1 to N, and i+j ⁇ N.
  • the time information used to indicate the time of key frames and non-key frames of the service is only an example. The time information can also be used to indicate the time of other types of frames of the service, and there is no specific limitation on this.
  • key frames can refer to frames that contain relatively important business data, such as frames corresponding to scenes where shots are switched.
  • Non-key frames may refer to frames that contain relatively minor business data, such as frames corresponding to still shots.
  • the above is based on key frames and non-key frames as examples.
  • the PCF network element can also determine the PER corresponding to other types of frames within a specified time, and there is no specific limitation on this.
  • this execution condition can also be used to indicate that in the case of packet loss within the same frame, the specified value of PER remains unchanged. Change. In other words, for a frame that has already experienced packet loss, this frame has been lost. At this time, if this frame continues to lose packets, it will not affect the frame loss rate of the service. Therefore, the specified value of PER can be kept unchanged to avoid invalid overhead and improve equipment operating efficiency.
  • the PCF network element sends the PER and execution conditions to the SMF network element.
  • the SMF network element receives the PER and execution conditions from the PCF network element.
  • S1404 The SMF network element maps the PCC rule to the QoS flow.
  • the SMF network element can use the PER+ execution condition in the PCC rule as a mapping parameter to map the PCC rule to the QoS flow. For example, the SMF network element can determine whether the PER+ execution condition in the PCC rule is the same as the PER+ execution condition in the QoS flow parameter. If the PER+ execution condition in the PCC rule is the same as the PER+ execution condition in the QoS flow parameter, map the PCC rule to the QoS flow corresponding to the QoS flow parameter to reuse the existing QoS flow and reduce overhead.
  • other mapping parameters in the PCC rules need to be the same. For the specific implementation principles of other mapping parameters, please refer to the relevant introduction in "3.
  • the SMF network element can create a QoS flow and map the PCC rules to the created QoS flow to prevent the PCC rules from affecting the existing QoS flows. .
  • the SMF network element can also map PCC rules (PCC rules including execution conditions + PER) to a separate QoS flow.
  • PCC rules including execution conditions + PER
  • the SMF network element creates an independent QoS flow and maps the PCC rule to the independent QoS flow.
  • the SMF network element can also use the mapping method introduced in S1204 above to map the PCC rules to the corresponding QoS flows. For specific implementation principles, please refer to the relevant introduction in S1204 above, which will not be described again.
  • S1405 The SMF network element sends execution conditions and the corresponding relationship between PER and QoS flows to the RAN device.
  • the RAN device receives the execution conditions from the SMF network element and the corresponding relationship between PER and QoS flows.
  • the RAN device processes the data packet of the service corresponding to the QoS flow according to the PER indicated by the execution condition.
  • the RAN device can determine the PER of the QoS flow based on the corresponding relationship.
  • the RAN device can determine the current PER according to the execution conditions, and determine the link configuration (uplink or downlink link configuration) corresponding to the QoS flow based on the PER. For example, RLC configuration and/or HARQ configuration, or any other possible configuration.
  • the RAN device can send the data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the packet loss rate of the service can meet the requirements of the PER, thereby ensuring the frame loss rate of the service.
  • the RAN device can also adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to send the QoS flow based on the adjusted link resources.
  • the QoS flow corresponds to the data packet of the service to ensure that the frame loss rate of the service always meets the frame loss rate limit.
  • the RAN device determines, based on the execution conditions, which PER with a specified value to use at the specified time when the service first starts, and determines the link configuration corresponding to the QoS flow based on the PER. After that, the service enters the next designated time, and the RAN device determines which PER with a designated value to use at the next designated time based on the execution conditions, and adjusts the link configuration corresponding to the QoS flow based on the PER. And so on until the end of the business.
  • the RAN device can also determine which data packets corresponding to the QoS flow belong to the same frame based on the frame period and BAT; or, the RAN device can also determine which data packets corresponding to the QoS flow based on the frame information in the data packet. belong to the same frame. In this way, the RAN device can determine which data packets within the same frame were not sent successfully (i.e. packet/frame loss). At this time, if the RAN device determines that packets are lost within the same frame, the RAN device can also keep the specified value of PER unchanged according to the execution conditions. That is, the RAN device can process the data of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • the SMF network element sends execution conditions and the corresponding relationship between PER and QoS flows to the UE.
  • the corresponding UE receives the execution conditions from the SMF network element and the corresponding relationship between PER and QoS flow.
  • S1408 The UE processes the data packet of the service corresponding to the QoS flow according to the PER indicated by the execution condition.
  • the UE can determine the PER of the QoS flow according to the corresponding relationship.
  • the UE can determine the current PER according to the execution conditions, and determine the link configuration (uplink link configuration) corresponding to the QoS flow based on the PER. For example, RLC configuration and/or HARQ configuration, or any other possible configuration.
  • the UE can send data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the packet loss rate of the service can meet the requirements of the PER, thereby ensuring the frame loss rate of the service.
  • the UE can also adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to send the QoS according to the adjusted link resources.
  • the UE determines which PER with a specified value is used at the specified time when the service first starts, and determines the link configuration corresponding to the QoS flow based on the PER. After that, the service enters the next designated time, and the UE determines which PER with designated value to use at the next designated time based on the execution conditions, and adjusts the link configuration corresponding to the QoS flow based on the PER. And so on until the end of the business.
  • the UE can also determine which data packets of the corresponding QoS flow belong to the same frame based on the frame period and BAT; or, the UE can also determine which data packets of the corresponding QoS flow belong to the same frame based on the frame information in the data packet. . In this way, the UE can determine which data packets within the same frame were not sent successfully (ie, packet/frame loss). At this time, if the UE determines that packets are lost within the same frame, the UE can also keep the specified value of PER unchanged according to the execution conditions. That is, the UE can process the data of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • the execution order between S1405-S1406 and S1407-S1408 is not limited.
  • S1405-S1406 and S1407-S1408 are optional steps.
  • the SMF network element can only send the execution conditions and the correspondence between PER and QoS flows to the RAN, or the SMF network element can only send the execution conditions and the correspondence between PER and QoS flows to the UE. relation.
  • the execution conditions sent by the SMF network element to the RAN and the execution conditions sent by the SMF network element to the UE may be the same, or they may be different.
  • the designated time for uplink and the designated time for downlink may be different, and different designated times may correspond to Different PERs, that is, the PER sent by the SMF network element to the RAN and the PER sent by the SMF network element to the UE can also be different.
  • the above solutions can be combined.
  • the solution in scenario 2 and the solution in scenario 3 can be combined and implemented.
  • the SMF network element sends execution conditions to the RAN device or UE.
  • the execution conditions not only include the value range of PER, It also includes the designated time of the business, which will not be described again.
  • FIG. 15 is a schematic flowchart 4 of the communication method provided by the embodiment of the present application.
  • the communication method is suitable for communication between terminals, access network equipment, session management network elements, and policy control network elements in the above communication system.
  • the flow of this communication method is as follows:
  • the policy control network element obtains the PER corresponding to the service.
  • PER is used for terminals or access network equipment to process service data packets based on PER.
  • the PER is a specified value.
  • the policy control network element can instruct the terminal or access network equipment which value of PER to use, without the terminal or access network equipment needing to determine or adjust the PER, so as to reduce equipment overhead and improve operating efficiency.
  • the specified value satisfies the following relationship: A/B% ⁇ C ⁇ A%
  • the frame loss rate of the service is limited to A%.
  • the number of data packets in the service frame (such as one frame) is B
  • the specified value of PER is C
  • the value of A is greater than
  • B is a positive integer.
  • a PER of A% is a relatively loose packet loss rate condition
  • a PER of A/B% is a relatively strict packet loss rate condition.
  • Each of the two constitutes a range, such as [A/B%, A%] , so that the PCF network element can select a suitable PER within this range to take into account equipment overhead and business requirements.
  • the policy control network element can receive PER from the application function to reduce the overhead of the policy control network element and improve operating efficiency.
  • the PER is determined based on the frame loss rate limit of the service. This PER is used to make the frame loss rate of the service meet the frame loss rate limit when the terminal or access network equipment processes the data packets of the service.
  • determining the PER according to the frame loss rate limit may be determining the frame loss rate limit as the PER.
  • the frame loss rate is limited to A%, and the PER is also A%, which is used to meet the frame loss rate limit of the service under specific circumstances (such as packet loss within the same frame).
  • the PER may be further determined based on the number of intra-frame data packets of the service.
  • the policy control network element determines the quotient between the frame loss rate limit of the service and the number of data packets in the frame of the service, and determines the quotient value as PER, which is used to detect packet loss in any frame under any circumstances (such as packet loss in any frame). ) meets the frame loss rate limit of the service.
  • the policy control network element can receive the frame loss rate limit information of the service from the application function, and determine the PER based on the frame loss rate limit information. That is to say, the application function can only provide service information, and the policy control network element determines the PER on its own, so as to reduce the overhead of the application function and improve operating efficiency.
  • the policy control network element can also receive frame characteristic information from the service of the application function, and determine the number of data packets in the frame of the service based on the frame characteristic information.
  • the policy control network element determines the PER based on the frame loss rate limit information, including: the policy control network element determines the PER based on the frame loss rate limit information and the number of data packets in the service frame.
  • the frame characteristic information may include at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame period and data packet period can be used to determine the number of data packets in the frame of the service (recorded as the number of data packets in the frame).
  • the policy control network element can select parameters that it can recognize to determine the number of data packets in the frame, to avoid being unable to determine the number of data packets in the frame because the policy control network element does not support some of the above parameters, so as to ensure the reliability of the solution. sex.
  • determining the PER based on the number of data packets in the frame can also ensure that the frame loss rate of the service meets the frame loss rate limit under any circumstances.
  • the frame characteristic information may also include at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service.
  • the terminal or access network equipment can determine the data packets belonging to the same frame based on the frame characteristic information, thereby achieving a more accurate calculation of the packet loss rate of the service at the frame granularity.
  • the terminal or access network device determines how long after the first data packet arrives, all arriving data packets are data packets in the same frame.
  • the time information may be used to indicate the time of the frame of the service (denoted as frame time).
  • the terminal or access network equipment can also use different PERs at different times based on time information to take into account equipment overhead and business requirements. For example, for non-key frames of the service within certain periods of time, the PER determined based on the frame loss rate limit information can be used to save overhead; for For the key frames of the business within certain periods of time, PER can be further determined based on the number of data packets in the frame to avoid key frame frame loss and ensure business needs.
  • PER can be carried in the policy and charging control PCC rules to achieve cell reuse and improve communication efficiency.
  • the policy control network element sends the PER to the session management network element.
  • the session management network element receives the PER from the policy control network element.
  • PER can be carried in PCC rules. That is, the policy control network element sends the PCC rule to the session management network element, and accordingly, the session management network element receives the PCC rule from the policy control network element, and the PCC rule carries the PER.
  • the policy control network element can also send the execution conditions of the PER to the session management network element.
  • the execution condition may be determined by the policy control network element. This execution condition can be used to indicate that when the execution condition is met, PER will take a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the case of packet loss or frame loss, so that the terminal or access network device can Select appropriate execution conditions under corresponding circumstances to take into account equipment overhead and business needs.
  • the execution conditions of PER include at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged. For example, when the terminal or access network device calculates packet loss at frame granularity, if the terminal or access network device determines that packet loss occurs within the same frame, the specified value of PER can be kept unchanged according to execution condition #3. Change.
  • the execution conditions of PER can also be carried in PCC rules. That is, the policy control network element sends the PCC rule to the session management network element, and accordingly, the session management network element receives the PCC rule from the policy control network element, and the PCC rule carries the execution condition of the PER.
  • S1502 can also refer to the relevant introductions in S1203, S1303, and S1403 above, and will not be described again.
  • the session management network element sends the corresponding relationship between PER and QoS flow to the terminal and/or access network device.
  • the terminal and/or the access network device receive the corresponding relationship between the PER and the QoS flow from the session management network element.
  • the session management network element can map PCC rules to QoS flows to ensure the QoS quality of services at the granularity of QoS flows. For example, the session management network element can determine that the PER in the PCC rule is the same as the PER in the existing QoS flow parameters, and map the PCC rule to the QoS flow corresponding to the QoS flow parameter to reuse the existing QoS flow and reduce overhead. . Alternatively, the session management network element may determine that the PER is different from the PER in the existing QoS flow parameters and create QoS flow, map PCC rules to the created QoS flow to prevent PCC rules from affecting existing QoS flows. Afterwards, the session management network element can send the corresponding relationship (ie, mapping relationship) between the PER and the QoS flow to the terminal and/or the access network device.
  • the session management network element can send the corresponding relationship (ie, mapping relationship) between the PER and the QoS flow to the terminal and/or the access network device.
  • the session management network element can also send execution conditions to the terminal or access network device respectively.
  • the terminal or access network device can receive execution conditions from the session management network element.
  • S1503 can also refer to the relevant introductions in the above-mentioned S1204-S1205, S1207, S1304-S1305, S1307, and S1404-S1405, S1407, which will not be described again.
  • the terminal or access network device processes data packets of services corresponding to the QoS flow according to the PER.
  • the terminal or access network device can determine the link configuration corresponding to the QoS flow based on the PER, and send the data packets of the service corresponding to the QoS flow according to the link configuration to ensure that the frame loss rate of the service meets the frame loss rate limit.
  • the terminal or access network equipment can also adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources corresponding to the QoS flow according to the adjusted specified value.
  • Link resources send the data packets of the service corresponding to the QoS flow to ensure that the frame loss rate of the service always meets the frame loss rate limit.
  • the terminal or the access network device can also receive the frame characteristic information of the service, and determine the data packets in the same frame belonging to the service based on the frame characteristic information.
  • the terminal or access network equipment can process the data of the service corresponding to the QoS flow based on the PER and discard the data packets in the same frame to ensure that the frame loss rate of the service meets the frame loss rate limit.
  • S1504 can also refer to the relevant introductions in the above-mentioned S1206 and S1208, S1306 and S1308, S1406 and S1408, and will not be described again.
  • terminals and access network equipment can also use other methods to ensure the frame loss rate limit, which is not specifically limited in the embodiments of this application.
  • the terminal or access network device can directly configure the PER according to the service.
  • PER processes the data packets of this service without identifying the header information corresponding to the data packets, so as to ensure the frame loss rate of the service and the QoS quality of the service through lower overhead.
  • FIG. 16 is a schematic flowchart 5 of the communication method provided by the embodiment of the present application.
  • the PCF network element can send service-related information to the SMF network element.
  • the SMF network element uses the QoS flow as the granularity to configure the relevant information of the service for the UE or RAN device.
  • the UE or RAN device can determine the PER corresponding to the service based on the relevant information of the service, thereby ensuring the frame loss rate of the service.
  • S1602 AF sends service-related information to the PCF network element.
  • the PCF network element receives service-related information from the AF.
  • the service-related information may be related to the requirements of the service, including at least one of the following: frame loss rate limit information, or frame characteristic information.
  • frame loss rate limit information of this service please refer to the relevant introduction in S1202 above, and will not be described again.
  • frame feature information of this service please refer to the relevant introductions in S1202, S1302 and S1402 above, and will not be described again.
  • the PCF network element sends service-related information to the SMF network element.
  • the SMF network element receives service-related information from the PCF network element.
  • business-related information can be carried in PCC rules to reuse existing cells, reduce communication overhead, and improve communication efficiency.
  • service-related information can also be carried in any other possible information element, and there is no specific limitation on this.
  • the PCF network element can also send indication information #2 to the UE or RAN device through the SMF network element.
  • indication information #2 please refer to the relevant introduction in S1303 above, which will not be described again.
  • S1604 The SMF network element maps the PCC rule to the QoS flow.
  • the SMF network element can determine whether the service information in the PCC rules, such as 5QI, ARP, etc., is the same as the service information in the QoS flow parameters. If the service information in the PCC rule is the same as the service information in the QoS flow parameter, map the PCC rule to the QoS flow corresponding to the QoS flow parameter. Alternatively, if the service information in the PCC rule is different from the service information in the QoS flow parameters, the SMF network element can create a QoS flow and map the PCC rule to the created QoS flow.
  • QoS flow parameters include: parameters of QoS flow #1 and parameters of QoS flow #2.
  • the parameters of QoS flow #1 include: ARP#1, the parameters of QoS flow #2 include: ARP#2, and the PCC rule includes: ARP#1.
  • the SMF network element determines that ARP#1 in the parameters of QoS flow #1 is the same as ARP#1 in the PCC rule, and maps the PCC rule to QoS flow #1.
  • the QoS flow parameters include: parameters of QoS flow #1 and parameters of QoS flow #2.
  • the parameters of QoS flow #1 include: ARP#1, the parameters of QoS flow #2 include: ARP#2, and the PCC rule includes: ARP#3. In this way, the SMF network element determines that the ARP in all QoS flow parameters is different from ARP#3 in the PCC rule, thereby creating QoS flow #3 and mapping the PCC rule to QoS flow #3.
  • the SMF network element may directly create a QoS flow without performing the above matching of service information, and map the PCC rules to the created QoS flow.
  • the relevant information of the service in the PCC rule and the QoS flow also have a corresponding corresponding relationship, for example, the relevant information of the service and the identifier of the QoS flow, such as QoS Corresponds to the ID of the stream.
  • S1605 The SMF network element sends the corresponding relationship between the service-related information and the QoS flow to the RAN device.
  • the RAN device receives the correspondence between the service-related information and the QoS flow from the SMF network element.
  • the corresponding relationship between business-related information and QoS flows can be carried in existing messages, such as any possible service-oriented interface messages, to achieve signaling multiplexing and improve communication efficiency.
  • the corresponding relationship between the service-related information and the QoS flow can also be carried in the newly created message, and there is no specific limitation on this.
  • the RAN device determines the PER corresponding to the service based on the relevant information of the service, and processes the data packet of the service corresponding to the QoS flow based on the PER.
  • the RAN device can determine the PER corresponding to the service based on the relevant information of the service, and determine the PER of the QoS flow based on the corresponding relationship between the relevant information of the service and the QoS flow. In this way, the RAN device can process the data packets of the service corresponding to the QoS flow based on the PER.
  • the relevant introductions in Scenario 1 to Scenario 3 above please refer to the relevant introductions in Scenario 1 to Scenario 3 above, which will not be described again.
  • the RAN device can also determine the execution conditions based on the relevant information of the service, so that the RAN device can select the specified value of PER based on the execution conditions.
  • the relevant information of the service can be determined from the relevant information of the service.
  • the SMF network element sends the corresponding relationship between the service-related information and the QoS flow to the UE.
  • the UE receives the correspondence between the service-related information and the QoS flow from the SMF network element.
  • the corresponding relationship between business-related information and QoS flows can be carried in existing messages, such as any possible NAS messages, to achieve signaling multiplexing and improve communication efficiency.
  • the corresponding relationship between the service-related information and the QoS flow can also be carried in the newly created message, and there is no specific limitation on this.
  • the UE determines the PER corresponding to the service based on the relevant information of the service, and processes the data packet of the service corresponding to the QoS flow based on the PER.
  • the UE can determine the PER corresponding to the service based on the relevant information of the service, and the PER of the QoS flow based on the corresponding relationship between the relevant information of the service and the QoS flow. In this way, the UE can process the data packets of the service corresponding to the QoS flow based on the PER.
  • the relevant introductions in Scenario 1 to Scenario 3 above please refer to the relevant introductions in Scenario 1 to Scenario 3 above, which will not be described again.
  • the UE can also determine the execution conditions based on the relevant information of the service, so that the UE can select the designated value of PER according to the execution conditions.
  • the relevant information of the service so that the UE can select the designated value of PER according to the execution conditions.
  • S1607-S1608 are optional steps.
  • the SMF network element can only send the correspondence between service-related information and QoS flows to the RAN device.
  • the RAN device can also send the corresponding relationship between the service-related information and the QoS flow to the UE, so that the UE can determine the PER corresponding to the service based on the corresponding relationship.
  • the RAN device can send the corresponding relationship between the PER and the QoS flow to the UE, that is, the RAN device can directly configure the PER of the QoS flow granularity for the UE, so as to reduce the UE overhead and improve the battery life.
  • the RAN device can also send execution conditions to the UE, that is, the RAN device can directly configure execution conditions for the UE, thereby reducing UE overhead and improving battery life.
  • FIG. 17 is a schematic flowchart 6 of the communication method provided by the embodiment of the present application.
  • the communication method is suitable for communication between terminals, access network equipment, session management network elements, and policy control network elements in the above communication system. As shown in Figure 17, the flow of this communication method is as follows:
  • the policy control network element receives service-related information from the application function.
  • the service-related information includes at least one of the following: frame characteristic information or frame loss rate limit information.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information may also include at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service.
  • the time information is used to indicate the time of the frame of the service.
  • the frame loss rate limit information is used to indicate that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • S1702 The policy control network element sends service-related information to the session management network element.
  • the session management network element receives service-related information from the policy control network element.
  • PCC rules business-related information is carried in PCC rules. That is, the policy control network element sends the PCC rule to the session management network element.
  • the session management network element receives the PCC rule from the policy control network element, and the PCC rule carries service-related information.
  • the session management network element sends the corresponding relationship between the service-related information and the QoS flow to the access network device. corresponding , the access network device receives the corresponding relationship between the service-related information from the session management network element and the QoS flow.
  • the session management network element can map PCC rules to QoS flows. For example, the session management network element determines that the service information in the PCC rule is the same as the service information in the existing QoS flow parameters, and maps the PCC rule to the QoS flow corresponding to the QoS flow parameter; or the session management network element determines that the service information in the PCC rule is the same. The service information is different from the service information in the existing QoS flow parameters. Create a QoS flow and map the PCC rules to the created QoS flow. In this way, the session management network element can send the corresponding relationship (that is, the mapping relationship) between the service-related information and the QoS flow to the access network device.
  • the session management network element can send the corresponding relationship (that is, the mapping relationship) between the service-related information and the QoS flow to the access network device.
  • the access network device determines the PER based on the relevant information of the service, and processes the data packets of the service corresponding to the QoS flow based on the PER.
  • the access network device can determine the PER based on the frame loss rate limit information.
  • the access network device determines the PER based on the number of data packets and frame loss rate limit information.
  • the PER can take a specified value.
  • the specified value of the PER satisfies the following relationship: A/B% ⁇ C ⁇ A%.
  • the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • the access network device can determine the link configuration corresponding to the QoS flow based on the PER, and send the data packet of the service corresponding to the QoS flow according to the link configuration.
  • the access network device determines execution conditions based on service-related information.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #1 is used to indicate that within the specified time of the service
  • PER is the specified value
  • execution condition #2 is used to indicate the specified value of PER in the case of packet loss or frame loss
  • execution condition #3 is used to indicate that PER is in the specified time.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the access network equipment can also use other methods to ensure the frame loss rate limit, which is not specifically limited in the embodiments of this application.
  • the access network device can adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, thereby sending the QoS flow according to the adjusted link resources.
  • This QoS flow corresponds to the data packet of the service.
  • the access network device can also determine the data packets in the same frame belonging to the service based on the frame characteristic information of the service. In this way, the access network device can process the data packets of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • the session management network element sends the corresponding relationship between the service-related information and the QoS flow to the terminal.
  • the terminal receives the correspondence between the service-related information and the QoS flow from the session management network element.
  • S1705 can also refer to the above-mentioned S1607, as well as the relevant introduction in the above-mentioned Scenario 1 to Scenario 3, and will not be described again.
  • the access network device sends the corresponding relationship between PER and QoS flow to the terminal.
  • the terminal receives the correspondence between the PER and the QoS flow from the access network device.
  • the access network device can also send execution conditions to the terminal.
  • the terminal receives Execution conditions for self-access network equipment.
  • S1705 and S1706 are optional steps, that is, configuring service-related information for the terminal so that the terminal can determine the PER by itself, and/or you can also directly configure the PER for the terminal.
  • the terminal can also use other methods to ensure the frame loss rate limit, which is not specifically limited in the embodiments of this application.
  • S1707 The terminal processes data packets of services corresponding to the QoS flow according to the PER.
  • the terminal can determine the PER corresponding to the service according to the relevant information of the service, and map the PER to the QoS flow according to the corresponding relationship between the relevant information of the service and the QoS flow. In this way, the terminal can process data packets of services corresponding to the QoS flow according to the PER. For example, the terminal can determine the link configuration corresponding to the QoS flow based on the PER, and send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • the terminal can also determine the execution conditions of the PER based on service-related information.
  • the terminal can also adjust the specified value of PER according to the execution conditions of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, thereby sending the QoS according to the adjusted link resources.
  • the flow corresponds to the data packet of the service.
  • the terminal can also determine the data packets in the same frame belonging to the service based on the frame characteristic information in the relevant information of the service. In this way, the terminal can also process the data packets of the service corresponding to the QoS flow according to the PER and by discarding the data packets in the same frame.
  • the access network device can determine the PER corresponding to the service, such as the PER that meets the frame loss rate limit of the service. In this way, the access network device can directly send the data packet of the service based on the PER without identifying the header information corresponding to the data packet, thereby ensuring the frame loss rate of the service and ensuring the QoS quality of the service through lower overhead.
  • the core network such as the PCF network element
  • the communication method provided by the embodiment of the present application is described in detail above with reference to Figures 12-17.
  • the communication device used to perform the communication method provided by the embodiment of the present application will be described in detail below with reference to FIGS. 18-20.
  • the communication device is applicable to the above scenarios 1 to 3. Details are introduced below.
  • Figure 18 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1800 may include some functional modules for executing the PCF network elements in the above scenarios 1 to 3, or Policies control the functions of network elements.
  • the communication device 1800 includes: a transceiver module 1801 and a processing module 1802.
  • the processing module 1802 is used to obtain the PER corresponding to the service; the transceiving module 1801 is used to send the PER to the session management network element.
  • PER is used by terminals or access network equipment to process service data packets based on PER.
  • PER is a specified value.
  • the specified value satisfies the following relationship: A/B% ⁇ C ⁇ A%.
  • the frame loss rate of the service is limited to A%
  • the number of data packets in the frame of the service is B
  • the specified value of PER is C
  • the value of A is greater than 0
  • B is a positive integer.
  • the transceiver module 1801 is also used to receive the PER from the application function.
  • the PER is determined based on the frame loss rate limit of the service.
  • the PER is used to process service data at the terminal or access network equipment. packet, so that the frame loss rate of the service meets the frame loss rate limit.
  • PER is further determined based on the number of intra-frame data packets of the service.
  • the transceiver module 1801 is also used to receive frame loss rate limit information from the service of the application function; the processing module 1802 is also used to determine the PER based on the frame loss rate limit information.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or the access network device processes the data packet of the service.
  • the transceiver module 1801 is also used to receive the frame characteristic information of the service from the application function; the processing module 1802 is also used to determine the number of data packets in the frame of the service based on the frame characteristic information, and to determine the number of data packets in the frame according to the frame loss of the service. The number of data packets within the frame of rate-limited information and services determines the PER.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service.
  • the time information is used to indicate the time of the frame of the service.
  • PER is determined based on frame loss rate limit information.
  • PER is determined based on packet number and frame loss rate limit information.
  • PER is carried in the PCC rules.
  • the transceiver module 1801 is also used to send the execution conditions of the PER to the session management network element.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the transceiver module 1801 may include a sending module and a receiving module.
  • the sending module is used to realize the sending function of the communication device 1800
  • the receiving module is used to realize the receiving function of the communication device 1800.
  • the communication device 1800 may also include a storage module that stores programs or instructions.
  • the processing module 1802 executes the program or instruction, the communication device 1800 can perform the functions of the PCF network element in the communication method as shown in Figures 12-14, or perform the policy control network in the communication method as shown in Figure 15 Yuan function.
  • the communication device 1800 can be a network device, such as a PCF network element, or a chip (system) or other components or components that can be installed in the network device, or a device including network devices. This application describes This is not limited.
  • Figure 19 is a second structural schematic diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1900 may include some functional modules for executing the SMF network elements in the above scenarios 1 to 3. Or the function of session management network element.
  • the communication device 1900 includes: a receiving module 1901 and a sending module 1902.
  • the receiving module 1901 is used to receive the PER corresponding to the service from the policy control network element; the sending module 1902, used to send the corresponding relationship between PER and QoS flow to the terminal and/or access network device.
  • the corresponding relationship is used for the access network device or terminal to process the data packets of the service corresponding to the QoS flow according to the PER.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, and the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • PER is determined based on the frame loss rate limit of the service.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or access network device processes the data packet of the service.
  • the PER is further determined based on the number of data packets in the frame of the service.
  • the number of data packets in a frame of the service is determined based on the frame characteristic information of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the receiving module 1901 is also used to receive PCC rules from the policy control network element, where the PCC rules carry PER.
  • the communication device 1900 may further include: a processing module (not shown in Figure 19). This processing module is used to map PCC rules to QoS flows.
  • the processing module is also used to determine that the PER in the PCC rule is the same as the PER in the existing QoS flow parameter, and map the PCC rule to the QoS flow corresponding to the QoS flow parameter.
  • the processing module is also used to determine that the PER in the PCC rule is different from the PER in the existing QoS flow parameters, create a QoS flow, and map the PCC rule to the created QoS flow.
  • the receiving module 1901 is also used to receive the execution conditions of the PER from the policy control network element; the sending module 1902 is also used to send the execution conditions of the PER to the terminal or access network device.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the receiving module 1901 is also configured to receive PCC rules from the policy control network element.
  • the PCC rules carry the execution conditions of the PER.
  • the sending module 1902 and the receiving module 1901 can also be integrated into a transceiving module.
  • the transceiver module is used to implement the transceiver function of the communication device 1900.
  • the communication device 1900 may also include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device 1900 can perform the functions of the SMF network element in the communication method as shown in Figures 12-14, or perform the session management network element in the communication method as shown in Figure 15 function.
  • the communication device 1900 may be a network device, such as an SMF network element, or may be configured on the network.
  • the chip (system) or other components or components in the network equipment may also be a device including the network equipment, which is not limited in this application.
  • the communication device 1800 may include some functional modules for performing the functions of the UE or RAN device, or the terminal or the access network device in the above scenarios 1 to 3.
  • the communication device 1800 includes: a transceiver module 1801 and a processing module 1802.
  • the transceiver module 1801 is used to receive the correspondence between the PER and the QoS flow from the session management network element.
  • the PER corresponds to the business.
  • the processing module 1802 is used to process data packets of services corresponding to the QoS flow according to the PER.
  • the processing module 1802 is also used to determine the link configuration corresponding to the QoS flow based on the PER, and control the transceiver module 1801 to send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate of the service is limited to A%, the number of data packets in the frame of the service is B, and the specified value of PER is C, the value of A is greater than 0, and B is a positive integer.
  • PER is determined based on the frame loss rate limit of the service.
  • the PER is used to make the frame loss rate of the service meet the frame loss rate limit of the service when the terminal or access network device processes the data packet of the service.
  • the PER is further determined based on the frame loss rate limit of the service and the number of data packets in the frame of the service.
  • the number of data packets in a frame of the service is determined based on the frame characteristic information of the service.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the transceiving module 1801 is also configured to receive the frame characteristic information of the service; the processing module 1802 is also configured to determine the data packets in the same frame belonging to the service based on the frame characteristic information. In addition, the processing module 1802 is also configured to process data corresponding to the QoS flow according to the PER in a manner of discarding data packets in the same frame.
  • the transceiver module 1801 is also used to receive the execution conditions of the PER from the session management network element.
  • the execution condition of PER can be used to indicate that when the execution condition is met, PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the processing module 1802 is also configured to adjust the specified value of PER according to the execution condition of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources corresponding to the adjusted link. path resources, and controls the transceiver module 1801 to send the data packet of the service corresponding to the QoS flow.
  • the transceiver module 1801 may include a sending module and a receiving module.
  • the sending module is used to implement communication
  • the sending function of the device 1800 and the receiving module are used to implement the receiving function of the communication device 1800 .
  • the communication device 1800 may also include a storage module that stores programs or instructions.
  • the processing module 1802 executes the program or instruction, the communication device 1800 can perform the functions of the UE or RAN device in the communication method as shown in Figure 12-14, or perform the terminal or RAN device in the communication method as shown in Figure 15. Functions of access network equipment.
  • the communication device 1800 may be a terminal or network equipment, such as a UE or RAN equipment, or may be a chip (system) or other components or components that can be disposed in the terminal or network equipment, or may include a terminal or network device.
  • the device of the equipment is not limited in this application.
  • the communication device is suitable for the above scenario 4. Details are introduced below.
  • the communication device 1900 may include some functional modules for executing the functions of the SMF network element or the session management network element in the above scenario 4.
  • the communication device 1900 includes: a receiving module 1901 and a sending module 1902.
  • the receiving module 1901 is used to receive service-related information from the policy control network element.
  • the sending module 1902 is configured to send service-related information to the access network device, as well as the correspondence between the service-related information and the QoS flow.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the relevant information of the service is used to determine the PER.
  • the PER is used for the terminal or interface.
  • the network access device processes service data packets based on the PER.
  • the frame characteristic information includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the receiving module 1901 is also used to receive PCC rules from the policy control network element.
  • the PCC rules carry business-related information.
  • the communication device 1900 may further include: a processing module (not shown in Figure 19). This processing module is used to map PCC rules to QoS flows.
  • the processing module is also used to determine that the service information in the PCC rule is the same as the service information in the existing QoS flow parameters, and map the PCC rule to the QoS flow corresponding to the QoS flow parameter; or, the processing module is also used In order to determine that the service information in the PCC rule is different from the service information in the existing QoS flow parameters, a QoS flow is created, and the PCC rule is mapped to the created QoS flow.
  • the sending module 1902 is also used to send service-related information to the terminal, as well as the correspondence between the service-related information and the QoS flow.
  • the sending module 1902 and the receiving module 1901 can also be integrated into a transceiving module.
  • the transceiver module is used to implement the transceiver function of the communication device 1900.
  • the communication device 1900 may also include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device 1900 can perform the function of the SMF network element in the communication method as shown in Figure 16, or the function of the session management network element in the communication method as shown in Figure 17.
  • the communication device 1900 may be a network device, such as an SMF network element, a chip (system) or other components or components that can be installed in the network device, or a device including network devices. This application is intended to This is not limited.
  • the technical effects of the communication device 1900 can be referred to the technical effects of the communication method shown in FIGS. 16 and 17 , which will not be described again here.
  • the communication device 1800 may include some functional modules for performing the functions of the RAN device or the access network device in the above scenario 4.
  • the communication device 1800 includes: a transceiver module 1801 and a processing module 1802.
  • the transceiver module 1801 is used to receive service-related information from the session management network element, as well as the corresponding relationship between the service-related information and the QoS flow; the processing module 1802 is used to determine the PER according to the service-related information. , processing the data packets of the service corresponding to the QoS flow.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit, and the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the processing module 1802 is also used to determine the link configuration corresponding to the QoS flow based on the PER, and control the transceiver module 1801 to send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the processing module 1802 is also configured to determine the data packets in the same frame belonging to the service based on the frame characteristic information of the service. In addition, the processing module 1802 is also configured to process the data packets of the service corresponding to the QoS flow according to the PER in a manner of discarding the data packets in the same frame.
  • PER is a specified value.
  • the specified value of PER satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate is limited to A%, the number of data packets is B, the specified value of PER is C, and the value of A Greater than 0, B is a positive integer.
  • the transceiver module 1801 is also used to send the corresponding relationship between the PER and the QoS flow to the terminal.
  • the corresponding relationship is used by the terminal to process data packets of services corresponding to the QoS flow according to the PER.
  • the processing module 1802 is also used to determine the execution conditions of the PER based on business-related information.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the processing module 1802 is also configured to adjust the specified value of PER according to the execution condition of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources corresponding to the adjusted link.
  • road resources Control the transceiver module 1801 to send the data packet of the service corresponding to the QoS flow.
  • transceiver module 1801 is also used to send the execution conditions of the PER to the terminal.
  • the transceiver module 1801 may include a sending module and a receiving module.
  • the sending module is used to realize the sending function of the communication device 1800
  • the receiving module is used to realize the receiving function of the communication device 1800.
  • the communication device 1800 may also include a storage module that stores programs or instructions.
  • the processing module 1802 executes the program or instruction, the communication device 1800 can perform the functions of the RAN device in the communication method as shown in Figure 16, or perform the functions of the access network device in the communication method as shown in Figure 17.
  • the communication device 1800 may be a network device, such as a RAN device, or it may be a chip (system) or other component or component that can be disposed in the network device, or it may be a device including a network device. This application will No restrictions.
  • the technical effects of the communication device 1800 can be referred to the technical effects of the communication method shown in FIGS. 16 and 17 , which will not be described again here.
  • the communication device 1800 may include some functional modules for performing the functions of the UE or terminal in the above scenario 4.
  • the communication device 1800 includes: a transceiver module 1801 and a processing module 1802.
  • the transceiver module 1801 is used to receive the corresponding relationship between the PER and the QoS flow from the access network device, or to receive the corresponding relationship between the service-related information of the session management network element and the QoS flow; the processing module 1802 is used to receive the corresponding relationship between the PER and the QoS flow according to the PER. , processing and sending data packets corresponding to the QoS flow.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit.
  • the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the PER is determined based on the relevant information of the service.
  • the processing module 1802 is also used to determine the link configuration corresponding to the QoS flow based on the PER, and control the transceiver module 1801 to send the data packet of the service corresponding to the QoS flow based on the link configuration.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the processing module 1802 is also configured to determine the data packets in the same frame belonging to the service based on the frame characteristic information of the service. In addition, the processing module 1802 is also configured to process the data packets of the service corresponding to the QoS flow according to the PER in a manner of discarding the data packets in the same frame.
  • PER is a specified value.
  • the specified value satisfies the following relationship: A/B% ⁇ C ⁇ A%, the frame loss rate is limited to A%, the number of data packets is B, the specified value is C, the value of A is greater than 0, and B is a positive integer.
  • the processing module 1802 is also used to determine the PER based on the frame loss rate limit information.
  • the processing module 1802 is also used to determine the PER based on the number of data packets and the frame loss rate limit information.
  • the transceiver module 1801 is also used to receive the PER execution conditions from the access network device.
  • the execution condition can be used to indicate that when the execution condition is met, the PER takes a specified value.
  • the execution condition can be used to indicate at least one of the following: within a specified time of the service, the PER is a specified value, or the PER is a specified value in the event of packet loss or frame loss.
  • the execution condition of PER includes at least one of the following: execution condition #1, execution condition #2, or execution condition #3.
  • Execution condition #2 is used to indicate at least one of the following: the specified value of PER is negatively correlated with the number of lost frames, or the specified value of PER is negatively correlated with the number of lost packets.
  • Execution condition #3 is used to indicate: in the case of packet loss within the same frame, the specified value of PER remains unchanged.
  • the processing module 1802 is also configured to adjust the specified value of PER according to the execution condition of PER, and adjust the link resources corresponding to the QoS flow according to the adjusted specified value of PER, so as to adjust the link resources corresponding to the adjusted link. path resources, and controls the transceiver module 1801 to send the data packet of the service corresponding to the QoS flow.
  • the transceiver module 1801 may include a sending module and a receiving module.
  • the sending module is used to realize the sending function of the communication device 1800
  • the receiving module is used to realize the receiving function of the communication device 1800.
  • the communication device 1800 may also include a storage module that stores programs or instructions.
  • the processing module 1802 executes the program or instruction, the communication device 1800 can perform the functions of the UE in the communication method as shown in Figure 16, or the functions of the terminal in the communication method as shown in Figure 17.
  • the communication device 1800 may be a terminal, such as a UE, a chip (system) or other components or components that can be installed in the terminal, or a device including a terminal, which is not limited in this application.
  • the technical effects of the communication device 1800 can be referred to the technical effects of the communication method shown in FIGS. 16 and 17 , which will not be described again here.
  • the communication device 1900 may include some functional modules for executing the functions of the PCF network element or the policy control network element in the above scenario 4.
  • the communication device 1900 includes: a receiving module 1901 and a sending module 1902.
  • the receiving module 1901 is used to receive service-related information from the application function; the sending module 1902 is used to send service-related information to the session management network element.
  • the service-related information includes at least one of the following: frame loss rate limit information or frame characteristic information.
  • the frame loss rate limit information indicates that the frame loss rate of the service is less than or equal to the frame loss rate limit, and the frame characteristic information is used to determine the number of data packets in the frame of the service.
  • the relevant information of the service is used to determine the PER, and the PER is used by the terminal or access network equipment to process the data packets of the service based on the PER.
  • the frame characteristic information of the service includes at least one of the following: frame period, maximum number of data packets, maximum data burst amount, or data packet period.
  • the frame characteristic information of the service includes at least one of the following: BAT, or time information.
  • BAT is used to indicate the arrival time of the first data packet of the service
  • time information is used to indicate the time of the frame of the service.
  • the sending module 1902 is also used to send PCC rules to the session management network element, where the PCC rules carry service-related information.
  • the sending module 1902 and the receiving module 1901 can also be integrated into a transceiving module.
  • the transceiver module is used to implement the transceiver function of the communication device 1900.
  • the communication device 1900 may also include a storage module that stores programs or instructions.
  • the processing module executes the program or instruction, the communication device 1900 can perform the functions of the PCF network element in the communication method as shown in Figure 16, or perform the functions of the policy control network element in the communication method as shown in Figure 17.
  • the communication device 1900 can be a network device, such as a PCF network element, or a chip (system) or other components or components that can be installed in the network device, or a device including network devices. This application describes This is not limited.
  • FIG. 20 is a schematic structural diagram three of a communication device provided by an embodiment of the present application.
  • the communication device may be a terminal, or a chip (system) or other components or components that can be installed in the terminal.
  • the communication device 2000 may include a processor 2001.
  • the communication device 2000 may also include a memory 2002 and/or a transceiver 2003.
  • the processor 2001 is coupled to the memory 2002 and the transceiver 2003, for example, through a communication bus.
  • the processor 2001 is the control center of the communication device 2000, and may be a processor or a collective name for multiple processing elements.
  • the processor 2001 is one or more central processing units (CPUs), may also be an application specific integrated circuit (ASIC), or may be configured to implement one or more embodiments of the present application.
  • An integrated circuit such as one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA).
  • the processor 2001 can perform various functions of the communication device 2000 by running or executing software programs stored in the memory 2002 and calling data stored in the memory 2002, for example, performing the functions shown in FIGS. 12 to 17 above. communication method.
  • the processor 2001 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 20 .
  • the communication device 2000 may also include multiple processors, such as the processor 2001 and the processor 2004 shown in FIG. 20 .
  • processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
  • a processor here may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the memory 2002 is used to store the software program for executing the solution of the present application, and is controlled by the processor 2001 for execution.
  • the memory 2002 is used to store the software program for executing the solution of the present application, and is controlled by the processor 2001 for execution.
  • the memory 2002 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory (RAM)) or a random access memory (RAM) that can store information and instructions.
  • ROM read-only memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • Other types of dynamic storage devices for instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical discs Storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and any other media capable of being accessed by a computer, without limitation.
  • the memory 2002 may be integrated with the processor 2001, or may exist independently and be coupled to the processor 2001 through the interface circuit (not shown
  • Transceiver 2003 used for communication with other communication devices.
  • the communication device 2000 is a terminal, and the transceiver 2003 can be used to communicate with a network device or with another terminal device.
  • the communication device 2000 is a network device, and the transceiver 2003 can be used to communicate with a terminal or another network device.
  • the transceiver 2003 may include a receiver and a transmitter (not shown separately in Figure 20). Among them, the receiver is used to implement the receiving function, and the transmitter is used to implement the sending function.
  • the transceiver 2003 can be integrated with the processor 2001, or can exist independently and communicate through The interface circuit (not shown in Figure 20) of the device 2000 is coupled to the processor 2001, which is not specifically limited in the embodiment of the present application.
  • the structure of the communication device 2000 shown in Figure 20 does not constitute a limitation on the communication device.
  • the actual communication device may include more or less components than shown in the figure, or some components may be combined, or Different component arrangements.
  • the processor in the embodiment of the present application can be a central processing unit (CPU).
  • the processor can also be other general-purpose processors, digital signal processors (DSP), special-purpose integrated processors, etc.
  • Circuit application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • RAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory access memory
  • direct rambus RAM direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware (such as circuits), firmware, or any other combination.
  • the above-described embodiments 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 or computer programs. When the computer instructions or computer programs are loaded or executed on the 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 devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmit to another website, computer, server or data center through wired (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server or a data center that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • At least one refers to one or more, and “plurality” refers to two or more.
  • At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • 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 the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, 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, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

Abstract

La présente demande a trait au domaine technique des communications. Un procédé et un appareil de communication, qui visent à garantir la qualité de QoS d'un service au moyen de surdébits relativement faibles, sont décrits. Dans le procédé, un PER correspondant à un service est configuré pour un terminal ou un dispositif de réseau d'accès, par exemple, un PER satisfaisant un taux limite de perte de trames du service, de telle sorte que le terminal ou le dispositif de réseau d'accès peut traiter directement un paquet de données du service selon le PER sans devoir identifier des informations d'en-tête correspondant au paquet de données, ce qui garantit le taux de perte de trames du service au moyen de surdébits relativement faibles et, partant, la qualité de QoS du service. Le procédé peut être appliqué à un système de communication 4G, à un système de communication 5G ou à un système de communication de future génération.
PCT/CN2023/080131 2022-03-26 2023-03-07 Procédé et appareil de communication WO2023185402A1 (fr)

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WO2020199733A1 (fr) * 2019-03-30 2020-10-08 华为技术有限公司 Procédé, dispositif et système de commande de stratégie
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WO2020199733A1 (fr) * 2019-03-30 2020-10-08 华为技术有限公司 Procédé, dispositif et système de commande de stratégie
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