CN111050363A - Mapping method, device and storage medium of IP flow and QoS flow - Google Patents
Mapping method, device and storage medium of IP flow and QoS flow Download PDFInfo
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- CN111050363A CN111050363A CN201811192220.3A CN201811192220A CN111050363A CN 111050363 A CN111050363 A CN 111050363A CN 201811192220 A CN201811192220 A CN 201811192220A CN 111050363 A CN111050363 A CN 111050363A
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- 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]
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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Abstract
The embodiment of the invention provides a mapping method, a mapping device and a storage medium of IP flow and quality of service (QoS flow), wherein the method comprises the following steps: the core network configures preset mapping rules of IP flow and QoS flow to a base station and a terminal through signaling during service establishment; and in the data transmission process, the core network, the base station and the terminal respectively control the mapping of the IP flow and the QoS flow according to the mapping rule.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method, an apparatus, and a storage medium for mapping a network protocol flow (IP flow) and a quality of service flow (QoS flow).
Background
In the 3GPP protocol, values of qfi (qos Flow identity) and standard 5QI (5G qos identifier) are specified to be in one-to-one correspondence. There is no definition in the current protocol as to how non-standard 5QI and QFI mappings are defined. However, in the latest SA2 conference, it is finally determined that all QFIs occupy 6 bits, the value range is 0-63, and the maximum value of the QFIs is 63. This means that the defined 5QI cannot be mapped with QFI one to one. For the above change of SA2, the configuration and mapping scheme of QoS flow is fundamentally changed, and the mapping of IP flow to QoS flow will be changed.
According to the scheme adopted by the SA2 at present, each time the relevant configuration of a QoS Flow is established or changed, the corresponding 5QI of the QoS Flow needs to be configured through corresponding signaling (NAS signaling or RRC signaling). And QFI and 5QI are completely separated, and when the core network and the radio access network start reflective mapping (reflective mapping), 5QI corresponding to each QoSFlow needs a corresponding signaling configuration receiver, which greatly increases signaling overhead.
Disclosure of Invention
In view of this, embodiments of the present invention are to provide a mapping method, apparatus and storage medium for IP flow and QoS flow.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a mapping method of IP flow and QoS flow of network protocol flow, which comprises the following steps:
the core network configures preset mapping rules of IP flow and QoS flow to a base station and a terminal through signaling during service establishment;
and in the data transmission process, the core network, the base station and the terminal respectively control the mapping of the IP flow and the QoS flow according to the mapping rule.
Optionally, the method further includes:
and when the data transmission channel is determined to need updating, judging whether the mapping rules of the IP flow and the QoS flow need updating, and if so, updating the mapping rules.
In the embodiment of the present invention, the core network, the base station and the terminal each control the mapping of the IPflow and the QoS flow according to the mapping rule, including:
the core network determines that a downlink data packet needing to be sent exists on the IP flow;
judging whether the IP flow is an existing IP flow or not; if not, selecting a corresponding QoS flow for the IP flow according to the mapping rule; if yes, directly acquiring corresponding QoS flow;
and carrying the downlink data packet on the QoS flow for transmission.
In the embodiment of the present invention, the core network, the base station and the terminal each control the mapping of the IPflow and the QoS flow according to the mapping rule, including:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In the embodiment of the invention, the preset mapping rules of the IP flow and the QoS flow are realized by a preconfigured QoS type index QTI table; wherein the content of the first and second substances,
the QTI table takes a QTI value as a unique index keyword, and the QTI value is as follows: 0,1, …, N-1, N is a positive integer, N represents the number of the largest QTI values.
In the embodiment of the present invention, the preset mapping rule of the IP flow and the QoS flow includes:
when determining that one IP flow needs to be mapped to QoS flow, after each QoS parameter of the IP flow is subjected to preset calculation, obtaining each parameter in a QTI table corresponding to the IP flow and marking as each parameter in the QTI table
Respectively finding the closest approach from the QTI table
The QTI parameter with the highest priority is used as the QoS parameter of the QoS flow mapped by the IP flow, and the QTI is obtained according to the QTI parameter set;
and obtaining the QFI of the QoS flow mapped by the IP flow based on the QTI.
In the embodiment of the present invention, the core network configures a preset mapping rule of IP flow and QoSflow to a base station and a terminal through a signaling when a service is established, including:
receiving an end-to-end Protocol Data Unit (PDU) session establishment request;
establishing PDU session connection between the core network and the base station;
sending the PDU session establishment message to a base station, and forwarding the PDU session establishment message to a terminal through the base station; and the PDU session establishment message carries the configuration information of the QTI table.
In the embodiment of the invention, the QTI table comprises 5G QoS index 5QI in the protocol and 5QI configured by expanding according to needs, the two 5 QIs are indexed by the QTI value, and the service types indexed by different QTI values are different.
Optionally, the method further includes:
when determining that only the standard 5QI corresponding service type exists in the QTI table, using or not using signaling configuration;
and when the QTI table is determined to have the service types which are configured according to the requirement, signaling configuration is used.
In the embodiment of the invention, the service types of the adjacent QTI value indexes have continuity.
Optionally, the method further includes:
and when determining that one IP Flow is mapped to the QoS Flow, selecting the service type indicated by one QTI in the QTI table as the service type for identifying the QoS requirement of the IP Flow according to the QoS requirement of the IP Flow.
The embodiment of the invention also provides a mapping method of the IP flow and the QoS flow of the network protocol flow, which comprises the following steps:
a terminal receives an IP flow and QoS flow mapping rule configured by a core network through a signaling when a service is established;
and in the data transmission process, the terminal, the core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule.
In the embodiment of the present invention, the mapping of the IP flow and the QoS flow is controlled by the terminal, the core network, and the base station based on the mapping rule, including:
receiving a downlink data packet forwarded by a base station, and acquiring QoS flow information and data from the downlink data packet;
judging whether a flexible mapping rule starting identifier of an uplink data packet carried in the data packet is activated or not; if so, applying the flexible mapping rule to uplink data transmission, and recording the flexible mapping rule; if not, the existing mapping rule is not changed.
In the embodiment of the present invention, the mapping of the IP flow and the QoS flow is controlled by the terminal, the core network, and the base station based on the mapping rule, including:
and the terminal selects a corresponding QoS flow to bear the IP flow or the radio bearer RB to bear the QoS flow according to the mapping rule configured by the core network through the signaling and the flexible mapping rule carried in the downlink data packet.
In the embodiment of the present invention, the mapping of the IP flow and the QoS flow is controlled by the terminal, the core network, and the base station based on the mapping rule, including:
the terminal receives a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In the embodiment of the present invention, the mapping of the IP flow and the QoS flow is controlled by the terminal, the core network, and the base station based on the mapping rule, including:
determining whether a core network is configured with mapping rules of IP flow and QoS flow; if not, initiating a PDU session establishment request;
if yes, determining whether the IP flow is newly built, and if so, mapping a corresponding QoS flow for the IP flow; if the IP flow is the existing IP flow, directly acquiring the existing QoS flow;
and carrying the data packet of the IP flow onto the QoS flow to be sent.
The embodiment of the invention also provides a mapping device of IP flow and QoS flow of network protocol flow, which comprises:
the device comprises a setting module, a base station and a terminal, wherein the setting module is used for configuring the preset mapping rules of IP flow and QoS flow to the base station and the terminal through the signaling during service establishment;
and the first transmission module is used for controlling the mapping of the IP flow and the QoS flow by the base station and the terminal respectively according to the mapping rule in the data transmission process.
The embodiment of the invention also provides a mapping device of IP flow and QoS flow of network protocol flow, which comprises:
the receiving module is used for receiving the mapping rules of IP flow and QoS flow configured by the core network through the signaling when the service is established;
and the second transmission module is used for controlling the mapping of the IP flow and the QoS flow based on the mapping rule by the core network and the base station in the data transmission process.
The embodiment of the invention also provides a mapping device of IP flow and QoS flow of network protocol flow, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
Embodiments of the present invention also provide a storage medium having a computer program stored thereon, where the computer program is executed by a processor to implement the steps of the above-mentioned method.
According to the mapping method, device and storage medium for IP flow and QoS flow provided by the embodiment of the invention, a core network configures the preset mapping rules of IP flow and QoS flow to a base station and a terminal through a signaling during service establishment; and in the data transmission process, the core network, the base station and the terminal respectively control the mapping of the IP flow and the QoS flow according to the mapping rule. The embodiment of the invention does not need to dynamically configure the QoS information of the IP flow and the QoS flow by signaling in the data receiving and transmitting process. The embodiment of the invention can realize the mapping from the IP flow to the QoS flow by using a small amount of signaling even without using the signaling, thereby greatly reducing the signaling overhead.
Drawings
Fig. 1 is a first flowchart of a mapping method of IP flow and QoS flow according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second mapping method for IP flow and QoS flow according to an embodiment of the present invention;
fig. 3 is a first schematic structural diagram of a mapping apparatus for IP flow and QoS flow according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mapping apparatus for IP flow and QoS flow according to an embodiment of the present invention;
fig. 5 is a flowchart of processing of IP flow and QoS flow configured by static signaling in this embodiment;
FIG. 6 is a diagram illustrating mapping from IP flow to Qos flow through QTI table according to the present embodiment;
fig. 7 is a schematic diagram of a signaling-free IP flow transceiving process according to this embodiment.
Detailed Description
The invention is described below with reference to the figures and examples.
An embodiment of the present invention provides a mapping method for IP flow and QoS flow, as shown in fig. 1, the method includes:
step 101: the core network configures preset mapping rules of IP flow and QoS flow to a base station and a terminal through signaling during service establishment;
step 102: and in the data transmission process, the core network, the base station and the terminal respectively control the mapping of the IP flow and the QoS flow according to the mapping rule.
The embodiment of the invention does not need to dynamically configure the QoS information of the IP flow and the QoS flow by signaling in the data receiving and transmitting process. The embodiment of the invention can realize the mapping from the IP flow to the QoS flow by using a small amount of signaling even without using the signaling, thereby greatly reducing the signaling overhead.
In one embodiment, the method further comprises:
when determining that the data transmission channel needs to be updated (for example, when a user applies for the data transmission channel to be updated or the network side judges that the data transmission channel of the user needs to be updated), judging whether the mapping rules of the IP flow and the QoS flow need to be updated, and if so, updating the mapping rules.
In the embodiment of the present invention, the core network, the base station and the terminal each control the mapping of the IPflow and the QoS flow according to the mapping rule, including:
the core network determines that a downlink data packet needing to be sent exists on the IP flow;
judging whether the IP flow is an existing IP flow or not; if not, selecting a corresponding QoS flow for the IP flow according to the mapping rule; if yes, directly acquiring corresponding QoS flow;
and carrying the downlink data packet on the QoS flow for transmission.
In the embodiment of the present invention, the core network, the base station and the terminal each control the mapping of the IPflow and the QoS flow according to the mapping rule, including:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In the embodiment of the invention, the preset mapping rules of the IP flow and the QoS flow are realized by a preconfigured QoS type index QTI table; wherein the content of the first and second substances,
the QTI table takes a QTI value as a unique index keyword, and the QTI value is as follows: 0,1, …, N-1, N is a positive integer, N represents the number of the largest QTI values.
In the embodiment of the present invention, the preset mapping rule of the IP flow and the QoS flow includes:
when determining that one IP flow needs to be mapped to QoS flow, after each QoS parameter of the IP flow is subjected to preset calculation, obtaining each parameter in a QTI table corresponding to the IP flow and marking as each parameter in the QTI table
Respectively finding the closest approach from the QTI table
The QTI parameter with the highest priority of the IP flow is used as the QoS parameter of the QoS flow mapped by the IP flow,obtaining QTI according to the QTI parameter set;
and obtaining the QFI of the QoS flow mapped by the IP flow based on the QTI.
In one embodiment, the configuring, by the core network, a preset mapping rule of an IP flow and a QoS flow to a base station and a terminal through signaling during service establishment includes:
receiving an end-to-end Protocol Data Unit (PDU) session establishment request;
establishing PDU session connection between the core network and the base station;
sending the PDU session establishment message to a base station, and forwarding the PDU session establishment message to a terminal through the base station; and the PDU session establishment message carries the configuration information of the QTI table.
In the embodiment of the invention, the QTI table comprises 5G QoS index 5QI in the protocol and 5QI configured by expanding according to needs, the two 5 QIs are indexed by the QTI value, and the service types indexed by different QTI values are different.
In one embodiment, the method further comprises:
when determining that only the standard 5QI corresponding service type exists in the QTI table, using or not using signaling configuration;
and when the QTI table is determined to have the service types which are configured according to the requirement, signaling configuration is used.
In the embodiment of the invention, the service types of the adjacent QTI value indexes have continuity.
In the embodiment of the present invention, the method further includes:
and when determining that one IP Flow is mapped to the QoS Flow, selecting the service type indicated by one QTI in the QTI table as the service type for identifying the QoS requirement of the IP Flow according to the QoS requirement of the IP Flow.
An embodiment of the present invention further provides a mapping method for IP flow and QoS flow, as shown in fig. 2, the method includes:
step 201: a terminal receives an IP flow and QoS flow mapping rule configured by a core network through a signaling when a service is established;
step 202: and in the data transmission process, the terminal, the core network and the base station control the mapping of IPflow and QoS flow based on the mapping rule.
In the embodiment of the present invention, the mapping of the IP flow and the QoS flow is controlled by the terminal, the core network, and the base station based on the mapping rule, including:
receiving a downlink data packet forwarded by a base station, and acquiring QoS flow information and data from the downlink data packet;
judging whether a flexible mapping rule starting identifier of an uplink data packet carried in the data packet is activated or not; if so, applying the flexible mapping rule to uplink data transmission, and recording the flexible mapping rule; if not, the existing mapping rule is not changed.
In one embodiment, the controlling, by the terminal, the mapping of the IP flow and the QoSflow based on the mapping rule with the core network and the base station includes:
and the terminal selects a corresponding QoS flow to bear the IP flow or the radio bearer RB to bear the QoS flow according to the mapping rule configured by the core network through the signaling and the flexible mapping rule carried in the downlink data packet.
In one embodiment, the controlling, by the terminal, the mapping of the IP flow and the QoSflow based on the mapping rule with the core network and the base station includes:
the terminal receives a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In one embodiment, the controlling, by the terminal, the mapping of the IP flow and the QoSflow based on the mapping rule with the core network and the base station includes:
determining whether a core network is configured with mapping rules of IP flow and QoS flow; if not, initiating a PDU session establishment request;
if yes, determining whether the IP flow is newly built, and if so, mapping a corresponding QoS flow for the IP flow; if the IP flow is the existing IP flow, directly acquiring the existing QoS flow;
and carrying the data packet of the IP flow onto the QoS flow to be sent.
An embodiment of the present invention further provides a mapping apparatus for IP flow and QoS flow, as shown in fig. 3, where the apparatus is applied to a core network, and includes:
a setting module 301, configured to configure a preset mapping rule of an IP flow and a QoS flow to a base station and a terminal through a signaling during service establishment;
and a first transmission module 302, configured to control, in a data transmission process, mapping of the IP flow and the QoS flow according to the mapping rule by the base station and the terminal, respectively.
In an embodiment, the setting module 301 is further configured to determine whether the mapping rules of the IP flow and the QoS flow need to be updated when determining that the data transmission channel needs to be updated, and if so, update the mapping rules.
In this embodiment of the present invention, the controlling, by the first transmission module 302, the mapping of the IP flow and the QoS flow by the base station and the terminal according to the mapping rule includes:
determining that a downlink data packet needing to be sent exists on the IP flow;
judging whether the IP flow is an existing IP flow or not; if not, selecting a corresponding QoS flow for the IP flow according to the mapping rule; if yes, directly acquiring corresponding QoS flow;
and carrying the downlink data packet on the QoS flow for transmission.
In an embodiment, the first transmission module 302, the base station and the terminal respectively control mapping of IP flow and QoS flow according to the mapping rule, including:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In the embodiment of the invention, the preset mapping rules of the IP flow and the QoS flow are realized by a preconfigured QoS type index QTI table; wherein the content of the first and second substances,
the QTI table takes a QTI value as a unique index keyword, and the QTI value is as follows: 0,1, …, N-1, N is a positive integer, N represents the number of the largest QTI values.
In the embodiment of the present invention, the preset mapping rule of the IP flow and the QoS flow includes:
when the setting module 301 determines that an IP flow needs to be mapped to a QoS flow, after each QoS parameter of the IP flow is subjected to preset calculation, each parameter in the QTI table corresponding to the IP flow is obtained and recorded as
Respectively finding the closest approach from the QTI table
The QTI parameter with the highest priority is used as the QoS parameter of the QoS flow mapped by the IP flow, and the QTI is obtained according to the QTI parameter set;
and obtaining the QFI of the QoS flow mapped by the IP flow based on the QTI.
In one embodiment, the configuring module 301 configures a preset mapping rule of IP flow and QoSflow to a base station and a terminal through a signaling during service establishment, including:
receiving an end-to-end Protocol Data Unit (PDU) session establishment request;
establishing PDU session connection between the core network and the base station;
sending the PDU session establishment message to a base station, and forwarding the PDU session establishment message to a terminal through the base station; and the PDU session establishment message carries the configuration information of the QTI table.
In the embodiment of the invention, the QTI table comprises 5G QoS index 5QI in the protocol and 5QI configured by expanding according to needs, the two 5 QIs are indexed by the QTI value, and the service types indexed by different QTI values are different.
In one embodiment, the setting module 301 is further configured to determine that only the standard 5QI corresponding service type is in the QTI table, and use or not use signaling configuration;
and when the QTI table is determined to have the service types which are configured according to the requirement, signaling configuration is used.
In the embodiment of the invention, the service types of the adjacent QTI value indexes have continuity.
In an embodiment, the first transmission module 302 is further configured to select, when determining that an IP Flow maps to a QoS Flow, a service type indicated by only one QTI from the QTI table as a service type identifying the QoS requirement of the IP Flow according to the QoS requirement of the IP Flow.
An embodiment of the present invention further provides a mapping device for IP flow and QoS flow, as shown in fig. 4, where the mapping device is applied to a terminal, and includes:
a receiving module 401, configured to receive mapping rules of an IP flow and a QoS flow configured by a core network through a signaling when a service is established;
and a second transmission module 402, configured to control, in a data transmission process, mapping of the IP flow and the QoS flow based on the mapping rule by the core network and the base station.
In this embodiment of the present invention, the second transmission module 402, the core network and the base station control mapping of IP flow and QoS flow based on the mapping rule, including:
receiving a downlink data packet forwarded by a base station, and acquiring QoS flow information and data from the downlink data packet;
judging whether a flexible mapping rule starting identifier of an uplink data packet carried in the data packet is activated or not; if so, applying the flexible mapping rule to uplink data transmission, and recording the flexible mapping rule; if not, the existing mapping rule is not changed.
In this embodiment of the present invention, the second transmission module 402, the core network and the base station control mapping of IP flow and QoS flow based on the mapping rule, including:
and selecting the corresponding QoS flow to bear the IP flow or the radio bearer RB to bear the QoS flow according to the mapping rule configured by the core network through the signaling and the flexible mapping rule carried in the downlink data packet.
In this embodiment of the present invention, the second transmission module 402, the core network and the base station control mapping of IP flow and QoSflow based on the mapping rule, including:
the terminal receives a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In this embodiment of the present invention, the second transmission module 402, the core network and the base station control mapping of IP flow and QoS flow based on the mapping rule, including:
determining whether a core network is configured with mapping rules of IP flow and QoS flow; if not, initiating a PDU session establishment request;
if yes, determining whether the IP flow is newly built, and if so, mapping a corresponding QoS flow for the IP flow; if the IP flow is the existing IP flow, directly acquiring the existing QoS flow;
and carrying the data packet of the IP flow onto the QoS flow to be sent.
The embodiment of the invention also provides a mapping device of IP flow and QoS flow, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
configuring preset mapping rules of IP flow and QoS flow to a base station and a terminal through signaling during service establishment;
and in the data transmission process, the base station and the terminal respectively control the mapping of IP flow and QoSflow according to the mapping rule.
The processor is further configured to, when executing the computer program, perform:
and when the data transmission channel is determined to need updating, judging whether the mapping rules of the IP flow and the QoS flow need updating, and if so, updating the mapping rules.
When the base station and the terminal respectively control the mapping of IP flow and QoSflow according to the mapping rule, the processor is further configured to execute:
determining that a downlink data packet needing to be sent exists on the IP flow;
judging whether the IP flow is an existing IP flow or not; if not, selecting a corresponding QoS flow for the IP flow according to the mapping rule; if yes, directly acquiring corresponding QoS flow;
and carrying the downlink data packet on the QoS flow for transmission.
When the base station and the terminal respectively control the mapping of the IP flow and the QoS flow according to the mapping rule, the processor is further configured to execute, when running the computer program:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In the embodiment of the invention, the preset mapping rules of the IP flow and the QoS flow are realized by a preconfigured QoS type index QTI table; wherein the content of the first and second substances,
the QTI table takes a QTI value as a unique index keyword, and the QTI value is as follows: 0,1, …, N-1, N is a positive integer, N represents the number of the largest QTI values.
In the embodiment of the present invention, the preset mapping rule of the IP flow and the QoS flow includes:
when determining that one IP flow needs to be mapped to QoS flow, after each QoS parameter of the IP flow is subjected to preset calculation, obtaining each parameter in a QTI table corresponding to the IP flow and marking as each parameter in the QTI table
Respectively finding the closest approach from the QTI table
The QTI parameter with the highest priority is used as the QoS parameter of the QoS flow mapped by the IP flow, and the QTI is obtained according to the QTI parameter set;
and obtaining the QFI of the QoS flow mapped by the IP flow based on the QTI.
When the preset mapping rules of the IP flow and the QoS flow are configured to the base station and the terminal through the signaling during service establishment, the processor is further configured to execute, when the computer program is run:
receiving an end-to-end Protocol Data Unit (PDU) session establishment request;
establishing PDU session connection between the core network and the base station;
sending the PDU session establishment message to a base station, and forwarding the PDU session establishment message to a terminal through the base station; and the PDU session establishment message carries the configuration information of the QTI table.
In the embodiment of the invention, the QTI table comprises 5G QoS index 5QI in the protocol and 5QI configured by expanding according to needs, the two 5 QIs are indexed by the QTI value, and the service types indexed by different QTI values are different.
In the embodiment of the invention, the service types of the adjacent QTI value indexes have continuity.
The processor is further configured to, when executing the computer program, perform:
when determining that only the standard 5QI corresponding service type exists in the QTI table, using or not using signaling configuration;
and when the QTI table is determined to have the service types which are configured according to the requirement, signaling configuration is used.
The processor is further configured to, when executing the computer program, perform:
and when determining that one IP Flow is mapped to the QoS Flow, selecting the service type indicated by one QTI in the QTI table as the service type for identifying the QoS requirement of the IP Flow according to the QoS requirement of the IP Flow.
The embodiment of the invention also provides a mapping device of IP flow and QoS flow, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
receiving mapping rules of IP flow and QoS flow configured by a core network through signaling when a service is established;
and in the data transmission process, the terminal, the core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, the processor is further configured to execute, when running the computer program:
receiving a downlink data packet forwarded by a base station, and acquiring QoS flow information and data from the downlink data packet;
judging whether a flexible mapping rule starting identifier of an uplink data packet carried in the data packet is activated or not; if so, applying the flexible mapping rule to uplink data transmission, and recording the flexible mapping rule; if not, the existing mapping rule is not changed.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, the processor is further configured to execute, when running the computer program:
and selecting the corresponding QoS flow to bear the IP flow or the radio bearer RB to bear the QoS flow according to the mapping rule configured by the core network through the signaling and the flexible mapping rule carried in the downlink data packet.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, the processor is further configured to execute, when running the computer program:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, the processor is further configured to execute, when running the computer program:
determining whether a core network is configured with mapping rules of IP flow and QoS flow; if not, initiating a PDU session establishment request;
if yes, determining whether the IP flow is newly built, and if so, mapping a corresponding QoS flow for the IP flow; if the IP flow is the existing IP flow, directly acquiring the existing QoS flow;
and carrying the data packet of the IP flow onto the QoS flow to be sent.
It should be noted that: the apparatus provided in the foregoing embodiment is only illustrated by the division of the program modules when mapping the IP flow and the QoS flow, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
configuring preset mapping rules of IP flow and QoS flow to a base station and a terminal through signaling during service establishment;
and in the data transmission process, the base station and the terminal respectively control the mapping of IP flow and QoSflow according to the mapping rule.
And when the data transmission channel is determined to need updating, judging whether the mapping rules of the IP flow and the QoS flow need updating, and if so, updating the mapping rules.
When the mapping of the IP flow and the QoS flow is controlled by the base station and the terminal respectively according to the mapping rule, and the computer program is executed by a processor, the computer program further executes:
determining that a downlink data packet needing to be sent exists on the IP flow;
judging whether the IP flow is an existing IP flow or not; if not, selecting a corresponding QoS flow for the IP flow according to the mapping rule; if yes, directly acquiring corresponding QoS flow;
and carrying the downlink data packet on the QoS flow for transmission.
When the mapping of the IP flow and the QoS flow is controlled by the base station and the terminal respectively according to the mapping rule, and the computer program is executed by a processor, the computer program further executes:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
In the embodiment of the invention, the preset mapping rules of the IP flow and the QoS flow are realized by a preconfigured QoS type index QTI table; wherein the content of the first and second substances,
the QTI table takes a QTI value as a unique index keyword, and the QTI value is as follows: 0,1, …, N-1, N is a positive integer, N represents the number of the largest QTI values.
In the embodiment of the present invention, the preset mapping rule of the IP flow and the QoS flow includes:
when determining that one IP flow needs to be mapped to QoS flow, after each QoS parameter of the IP flow is subjected to preset calculation, obtaining each parameter in a QTI table corresponding to the IP flow and marking as each parameter in the QTI table
Respectively finding the closest approach from the QTI table
The QTI parameter with the highest priority as the IPQoS parameters of the QoS flow mapped by the flow are obtained according to the QTI parameter set;
and obtaining the QFI of the QoS flow mapped by the IP flow based on the QTI.
When the preset mapping rules of IP flow and QoS flow are configured to the base station and the terminal through the signaling during service establishment,
the computer program, when executed by the processor, further performs:
receiving an end-to-end Protocol Data Unit (PDU) session establishment request;
establishing PDU session connection between the core network and the base station;
sending the PDU session establishment message to a base station, and forwarding the PDU session establishment message to a terminal through the base station; and the PDU session establishment message carries the configuration information of the QTI table.
In the embodiment of the invention, the QTI table comprises 5G QoS index 5QI in the protocol and 5QI configured by expanding according to needs, the two 5 QIs are indexed by the QTI value, and the service types indexed by different QTI values are different.
In the embodiment of the invention, the service types of the adjacent QTI value indexes have continuity.
The computer program, when executed by the processor, further performs:
when determining that only the standard 5QI corresponding service type exists in the QTI table, using or not using signaling configuration;
and when the QTI table is determined to have the service types which are configured according to the requirement, signaling configuration is used.
The computer program, when executed by the processor, further performs:
and when determining that one IP Flow is mapped to the QoS Flow, selecting the service type indicated by one QTI in the QTI table as the service type for identifying the QoS requirement of the IP Flow according to the QoS requirement of the IP Flow.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
receiving mapping rules of IP flow and QoS flow configured by a core network through signaling when a service is established;
and in the data transmission process, the terminal, the core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, and the computer program is executed by the processor, the computer program further executes:
receiving a downlink data packet forwarded by a base station, and acquiring QoS flow information and data from the downlink data packet;
judging whether a flexible mapping rule starting identifier of an uplink data packet carried in the data packet is activated or not; if so, applying the flexible mapping rule to uplink data transmission, and recording the flexible mapping rule; if not, the existing mapping rule is not changed.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, and the computer program is executed by the processor, the computer program further executes:
and selecting the corresponding QoS flow to bear the IP flow or the radio bearer RB to bear the QoS flow according to the mapping rule configured by the core network through the signaling and the flexible mapping rule carried in the downlink data packet.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, and the computer program is executed by the processor, the computer program further executes:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
When the co-core network and the base station control the mapping of the IP flow and the QoS flow based on the mapping rule, and the computer program is executed by the processor, the computer program further executes:
determining whether a core network is configured with mapping rules of IP flow and QoS flow; if not, initiating a PDU session establishment request;
if yes, determining whether the IP flow is newly built, and if so, mapping a corresponding QoS flow for the IP flow; if the IP flow is the existing IP flow, directly acquiring the existing QoS flow;
and carrying the data packet of the IP flow onto the QoS flow to be sent.
The present invention is described in detail below with reference to scene embodiments.
The scheme establishes a detailed and comprehensive QoS type index table in an 23.501 protocol, wherein the QTI (QoStype Indicator: QoS type index) table is the general field of QoS information between an IP flow and a QoS flow, and then realizes the configuration without signaling.
The embodiment provides an IP flow and QoS flow mapping scheme for static signaling configuration:
when a user applies for service establishment, a core network configures a base station and a terminal. And then in the data transmission process, the core network, the base station and the terminal respectively control the flexible mapping of the IP flow and the QoS flow according to the configured unified rule.
Similarly, when the user applies for the data transmission channel to be updated or the network side judges that the data transmission channel of the user needs to be updated, if the mapping rules of the IP flow and the QoS flow need to be updated, the mapping rules can be continuously updated.
Fig. 5 shows a process flow description of IP flow and QoS flow of static signaling configuration, where the process flow is divided into two parts, signaling processing and data processing, as shown in fig. 5:
and (3) signaling processing:
1. the network side receives the service establishment application sent by the terminal side (user) and triggers the establishment process of the core network to the user data transmission channel.
2. The core network generates configuration signaling, and configures the mapping rules of IP flow and QoS flow to the base station and the terminal. The mapping rule of IPflow and QoS flow is described in the form of QTI table, and the configuration of the rule is called configuring QTI table.
3. After receiving the configuration of the core network, the Ng interface signaling protocol entity (NgAp) on the network side generates the bearer signaling of the Ng interface, completes the establishment or modification of the Ng interface bearer, and records the mapping rule and mapping relationship between the IP flow and the interface bearer.
4. After receiving the configuration of the core network, the RRC signaling protocol entity at the network side generates the mapping rules and mapping relationships of QoS flow and RB (radio bearer) of the base station.
5. After receiving the signaling configuration of the network side, the NAS and AS signaling processing function entity of the terminal side generates IP flow and QoS flow of the terminal side, and mapping rules and mapping relations of the QoS flow and RB.
Data processing:
and (3) downlink data processing:
1. and a downlink data packet needing to be sent exists on the IP flow of the core network side.
2. The core network decides whether the IP flow is an existing IP flow.
And 2.1, if the IP flow is not the existing IP flow, namely the IP flow is the new IP flow, selecting a proper QoS flow for the IP flow by the core network according to the QTI table, and setting the QFI value of the QoS flow as the QTI value.
3. And carrying the data packet of the IP flow onto the QoS flow and sending the data packet to the Ng interface.
4. And transmitting the data packet of the QoS flow on the Ng interface through an interface bearer.
5. And the base station receives the data packet from the Ng interface to obtain the QFI and the data packet. And transmitting the data to the terminal through an RB (radio bearer) over an air interface.
6. And the terminal receives the data packet from the RB, acquires QoS flow information and data, and judges whether the data packet carries a flexible mapping rule (reflective) starting identifier of the uplink data packet or not.
And 6.1, if the starting identifier value is activated flexible mapping, applying the rule to uplink data transmission and recording the mapping rule.
6.2, if the starting identifier value is that flexible mapping is not required to be activated, the existing mapping rule is not changed.
And (3) uplink data processing:
1. and the NAS layer at the terminal side selects proper QoS flow to bear the IP flow according to the mapping rule configured by the signaling of the core network at the network side and the mapping rule of the core network carried by the downlink data.
2. And the AS layer at the terminal side selects a proper RB to bear the QoS flow according to the mapping rule configured by the RRC signaling at the network side and the mapping rule of the base station carried by the downlink data.
As for the mapping rules in the uplink data processing, the "mapping rule configured by signaling" has a lower priority than the "mapping rule carried by downlink data (i.e. the flexible mapping rule)", and when the "mapping rule carried by downlink data" exists, the terminal side preferentially uses the rule; when the rule does not exist, the mapping rule configured by signaling is reused.
And the data packet of the IP flow is carried by the QoS flow and the RB and then reaches a base station and a core network at the network side.
In the embodiment of the present invention, the configuration of the mapping rule may introduce a Table (Table) indexed by a QTI value in the 23.501 protocol, as shown in Table 1:
A) the table takes a QTI value as a unique index key field, and the QTI value is as follows: n-1, wherein N ═ 1,2,3, 4. N represents the number of maximum QTI values. Defined by example Table5.7.4-1, QTI is the first column of the new table.
TABLE 1 QTI Table
B) In addition to the standard 5QI (Standardized 5QI) already given in the protocol, the table also includes other customized 5QI, both of which are indexed by QTI. The form supports the user to expand according to the needs of the user. The number N of QTI values can be defined by the user, and then the corresponding service types can be expanded according to the requirements. The length of the QTI value is not limited to the 6-bit or 7-bit length defined in the current protocol at all, and the user may define a number of bits as 8 bits, 16 bits, or less or more.
C) The characteristic value of the QoS type indexed by each QTI in the table can be flexibly expanded. Besides the classic GBR/NGBR and Delay Budget, for example, eMBB/mtc/URLLC service characteristic value identifiers, sliding-defined related characteristic values, characteristic values for air interface bands or carriers, and the like may also be extended.
D) One traffic type for each QTI index is unique in the table because the QTI values are unique. The service types of different QTI indexes are different.
E) Alternatively, the service types indexed by adjacent QTI values may have a certain continuity, that is, service types with similar types are identified by using a group of continuous QTI values as much as possible, for example, all service types of GBR use one continuous QTI value, and NGBR service uses another continuous QTI value.
In this embodiment, the configuration method of the QTI table is as follows:
1. if the QTI table has only standard 5QI defined traffic types, then signaling configuration may or may not be used. If no signaling configuration is used, the functional module that needs the information can be directly referred to and used according to the standard 5QI defined in the protocol text.
2. If the self-defined service type exists in the QTI table, signaling configuration is needed.
After receiving the PDU Session update Request sent by the terminal side, the network side writes the service type information in the QTI table into the PDU Session update Accept signaling and configures to the terminal. Meanwhile, the service type information is configured to the base station through a signaling PDU SESSION RESOURCE SETUP REQUEST between the wireless access network and the core network.
If the QTI table needs to be modified, the modified content can be configured through the signaling.
Table 2 below is a configuration of 5QI given in the 3GPP TS 38.413V0.7.0(2018-03) protocol.
9.3.1.12 QoS Flow Level QoS Parameters
Editor’s Note:Further details FFS.
This IE defines the QoS parameters to be applied to a QoS flow.
TABLE 2
For the configuration mode of the QTI, the following mode can be adopted for configuration:
TABLE 3
Wherein, the QTI is a key index field of the configuration parameter table as an index identifier of the QoS parameter. The Presence field of QTI is of type "O" (Optional) because if all of the QTI tables are standard 5QI, no configuration is required. The type of QTI is the INTEGER type, with the maximum value of n, n being 1,2, 3.
As defined with reference to the 38.413 protocol of the above-mentioned version, for a standard 5QI, still referred to as Non-Dynamic5QI, the Non-standard QoS class is referred to as a Dynamic QTI. Both Presence field types are "O", an optional type. When the signaling is configured, only one of the two types of signaling can be configured, and the signaling can be configured at the same time. When both are not configured at the same time, the QTI field is directly set to be invalid.
The specific content of Non-Dynamic5QI and Dynamic QTI is the parameters of each column in the QTI table. And the value of each parameter is selected and configured according to the requirement of each service type defined by the QTI table.
In this embodiment, an IP flow and QoS flow mapping mechanism using the QTI table as an interleaver is established as follows:
when any IP Flow is mapped to the QoS Flow, the service type indicated by only one QTI is selected from the QTI table as the service type for identifying the QoS requirement of the IP Flow, namely QFI of the QoS Flow according to the QoS requirement of the IP Flow.
The mapping of IP flow # m to QoS flow # l procedure is as follows:
QTIl(qQTI,QoS0,qQTI,QoS1,...,qQTI,QoSn)＝fIP_flow_m(qIP,QoS0,qIP,QoS1,...,qIP,QoSn),n＝1,2,3,...(1)，
the final QoS flow # l ID value is:
QFIl＝QTIl........(2)；
wherein:
QTI is the QTI index value corresponding to the IP flow after mapping;
QTI(qQTI,QoS0,qQTI,QoS1,...,qQTI,QoSn) Corresponding parameters in QTI table for representing QTI index
qQTI,QoSiN represents a QoS parameter of the QoS flow # m, i.e., a QoS parameter component in the QTI table;
qIP,QoSi1., n denotes a QoS parameter of IP flow # m;
fIP_flow_m(qnIP,QoS0):
...,
in the formula (3), k0,k1,...,knCoefficients mapped separately for each QoS parameter. For the parameters of the rate class and the priority class, the value of k is: k is more than or equal to 1; for the time class parameters, the value of k is: k is less than or equal to 1.
When one IP flow is required to map to a QoS flow, each QoS parameter for the IP flowAfter calculation by formula (1), each QoS parameter of IP flow is subjected to function (3) to obtain each parameter in the corresponding QTI table, and the parameter is recorded as
Respectively finding the closest approach from the QTI table
QTI parameter Max (q) with highest priorityQTI,QoS) And obtaining the QTI according to the parameter set as the QoS parameter of the QoS flow mapped by the IP flow. The identity QFI (ID of QoS flow) of the ip flow mapped QoS flow is obtained according to equation (2).
As shown in fig. 6, an IP Flow is mapped to a QoS Flow through the QTI table, and after being interleaved by QTI tablenterlacer, the ID of the QoS Flow mapped by each IP Flow, that is, the value of the QTI, is obtained.
The sending and receiving processes of the QFI at the sending end and the receiving end are given below.
After the QFI of the QoS flow corresponding to each IP flow is obtained, the sending end can send the IP flow data packet on the QoS flow identified by the QFI.
When sending the IP flow data packet, the network side does not need to send the signaling established by the QoS flow to the terminal side, and only needs to bear the IP flow data packet to the corresponding QoS flow to directly send the IP flow data packet.
When the sending end sends, the IP flow entity loads the data packet on the QoS flow identified by the QFI and sends the data packet to the receiving end, namely, mapping from the IP flow to the QoS flow is completed.
After receiving a data packet from a QoS flow, the receiving end may record the ID of the QoS flow, i.e., QFI, or may not record the QFI. The data packet is directly delivered to an IP layer, and the IP layer obtains the identifier of the IPflow according to the IP address carried in the data packet, namely, the demapping (mapping) from the QoS flow to the IP flow is completed.
Fig. 7 shows a flow of end-to-end transmission of IP flow through QoS flow, as shown in fig. 7, including:
firstly, carrying Request information for establishing end-to-end PDU Session through a protocol data unit Session Establishment Request (PDU Session Establishment Request).
Step 1, carrying NAS (Non Access Stratum) information of PDU Session establishment Request in RRC Connection configuration Request or RRC Connection setup Request.
And step 2, the base station (gNB) receives the NAS PDU and then sends the NAS PDU to the CN.
And secondly, after receiving the PDU Session establishment request, the core network firstly establishes the PDU Session connection between the core network and the base station.
And step 3, carrying configuration information of the QTI table in the PDU SESSION RESOURCE SETUP REQUEST. That is, in the PDU Session, the QoS flow identified by any one QTI in the QTI table is a legally available (available) transport bearer.
And 4, when the base station is successfully established, replying a confirmation message PDU SESSION RESOURCE SETUPRESPONSE to the core network to identify that the base station is correctly established. If the failure occurs, the base station will also reply an indication of the failure to the core network.
And thirdly, carrying configuration information for establishing the end-to-end PDU Session through the PDU Session Establishment increment Accept.
And step 5, the core network sends the information carrying the PDU Session establishment to the base station. Step 5 may be combined with step 3, that is, when a PDU Session request and response interaction is established between the core network and the base station, PDU Session establishment information transmitted to the terminal is transmitted to the base station together. When the base station completes the link discovery of the lower layer, the base station directly sends the information established by the PDScess to the terminal. The NAS PDU carries the configuration information of the QTI table. That is, in the pdusesion, the QoS flow identified by any QTI in the QTI table is a legally available (available) transport bearer.
And step 6, carrying the NAS (Non Access Stratum) information established by the PDU Session in the RRC Connection Reconfiguration Complete or RRC Connection setup Complete to send to the terminal side.
Through the above 6 steps, the end-to-end PDU Session is established. The established PDScess comprises all QoS flows supported by the PDScess, and QFI of each QoS flow corresponds to QTI values in the QTI table one by one. Each QoS flow can be found directly through the QTI table.
For Downlink (Downlink) transmission:
1. a sending end: when the core network side needs to send a data packet of an IP flow of a user, if the IP flow is newly established, mapping proper QoS flow for the IP flow; if the IP flow is the existing IP flow, directly taking the QoSflow; and carrying the data packet on the QoS flow and sending the data packet to the terminal side.
2. Receiving end: the receiving end receives a data packet from a QoS flow, obtains an IP packet of the data packet, and then directly delivers the IP packet to an upper layer, and the upper layer obtains the identification of the IP flow according to the IP information carried in the IP packet.
For Uplink (Uplink) transmission:
1. a sending end: when a terminal side needs to send a data packet of IP flow, the terminal firstly refers to whether a network side is configured with a QTI table or not, and if not, the terminal side initiates a PDU Session establishment request; if the IP flow is configured, judging whether the IP flow is newly built, and if the IP flow is newly built, mapping proper QoS flow for the IP flow; if the IP flow is the existing IP flow, directly taking the QoS flow; and carrying the data packet on the QoS flow and sending the data packet to the network side.
2. Receiving end: the receiving end receives a data packet from a QoS flow, obtains an IP packet of the data packet, and then directly delivers the IP packet to an upper layer, and the upper layer obtains the identification of the IP flow according to the IP information carried in the IP packet.
No matter on the network side or the terminal side, the receiving end and the transmitting end use the QTI table as the basis for mapping the IP flow to the QoS flow. The QTI table has been configured from the network side to the terminal side at the time of PDU Session establishment. When an IP flow data packet is sent, the IP flow data packet is directly sent on the QoS flow of the QFI identifier, and a receiving end directly receives the IP flow data packet.
The core network of the embodiment of the invention configures the preset mapping rules of the IP flow and the QoS flow to the base station and the terminal through the signaling during service establishment, so that the core network, the base station and the terminal respectively control the mapping of the IP flow and the QoS flow according to the mapping rules in the data transmission process, namely, the signaling is not required to dynamically configure the QoS information of the IPflow and the QoS flow in the data receiving and transmitting process. The embodiment of the invention can realize the mapping from the IP flow to the QoS flow by using a small amount of signaling even without using the signaling, thereby greatly reducing the signaling overhead.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (20)
1. A mapping method of IP flow and QoS flow of network protocol flow is characterized in that the method comprises the following steps:
the core network configures preset mapping rules of IP flow and QoS flow to a base station and a terminal through signaling during service establishment;
and in the data transmission process, the core network, the base station and the terminal respectively control the mapping of the IP flow and the QoSflow according to the mapping rule.
2. The method of claim 1, further comprising:
and when the data transmission channel is determined to need updating, judging whether the mapping rules of the IP flow and the QoS flow need updating, and if so, updating the mapping rules.
3. The method of claim 1, wherein the core network, the base station and the terminal control mapping of IP flow and QoS flow according to the mapping rule, respectively, comprising:
the core network determines that a downlink data packet needing to be sent exists on the IP flow;
judging whether the IP flow is an existing IP flow or not; if not, selecting a corresponding QoS flow for the IPflow according to the mapping rule; if yes, directly acquiring corresponding QoS flow;
and carrying the downlink data packet on the QoS flow for transmission.
4. The method of claim 1, wherein the core network, the base station and the terminal control mapping of IP flow and QoS flow according to the mapping rule, respectively, comprising:
receiving a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
5. The method of claim 1, wherein the preset mapping rules of IP flow and QoS flow are implemented by pre-configured QoS type index QTI table; wherein the content of the first and second substances,
the QTI table takes a QTI value as a unique index keyword, and the QTI value is as follows: 0,1, …, N-1, N is a positive integer, N represents the number of the largest QTI values.
6. The method of claim 5, wherein the preset mapping rules of IP flow and QoS flow comprise:
when determining that one IP flow needs to be mapped to QoS flow, after each QoS parameter of the IP flow is subjected to preset calculation, obtaining each parameter in a QTI table corresponding to the IP flow and marking as each parameter in the QTI table
n＝1,2,3,…；
Respectively finding the closest approach from the QTI table
The QTI parameter with the highest priority is used as the QoS parameter of the QoS flow mapped by the IP flow, and the QTI is obtained according to the QTI parameter set;
and obtaining the QFI of the QoS flow mapped by the IP flow based on the QTI.
7. The method of claim 5, wherein the core network configures preset mapping rules of IP flow and QoS flow to the base station and the terminal through signaling during service establishment, and the method comprises:
receiving an end-to-end Protocol Data Unit (PDU) session establishment request;
establishing PDU session connection between the core network and the base station;
sending the PDU session establishment message to a base station, and forwarding the PDU session establishment message to a terminal through the base station; and the PDU session establishment message carries the configuration information of the QTI table.
8. The method of claim 5,
the QTI table comprises 5G QoS index 5QI in the protocol and 5QI configured according to the requirement in an expanding way, the two 5 QIs are indexed by the QTI value, and the service types indexed by different QTI values are different.
9. The method according to claim 5 or 8, characterized in that the method further comprises:
when determining that only the standard 5QI corresponding service type exists in the QTI table, using or not using signaling configuration;
and when the QTI table is determined to have the service types which are configured according to the requirement, signaling configuration is used.
10. The method of claim 5, wherein the adjacent QTI value indexes have continuity of traffic type.
11. The method of claim 5, further comprising:
and when determining that one IP Flow is mapped to the QoS Flow, selecting the service type indicated by one QTI in the QTI table as the service type for identifying the QoS requirement of the IP Flow according to the QoS requirement of the IP Flow.
12. A mapping method of IP flow and QoS flow of network protocol flow is characterized in that the method comprises the following steps:
a terminal receives an IP flow and QoS flow mapping rule configured by a core network through a signaling when a service is established;
and in the data transmission process, the terminal, the core network and the base station control the mapping of the IP flow and the QoSflow based on the mapping rule.
13. The method of claim 12, wherein the terminal controls mapping of IP flow and QoS flow based on the mapping rule with the core network and the base station, comprising:
receiving a downlink data packet forwarded by a base station, and acquiring QoS flow information and data from the downlink data packet;
judging whether a flexible mapping rule starting identifier of an uplink data packet carried in the data packet is activated or not; if so, applying the flexible mapping rule to uplink data transmission, and recording the flexible mapping rule; if not, the existing mapping rule is not changed.
14. The method of claim 13, wherein the terminal controls mapping of IP flow and QoS flow based on the mapping rule with the core network and the base station, comprising:
and the terminal selects a corresponding QoS flow to bear the IP flow or the radio bearer RB to bear the QoS flow according to the mapping rule configured by the core network through the signaling and the flexible mapping rule carried in the downlink data packet.
15. The method of claim 12, wherein the terminal controls mapping of IP flow and QoS flow based on the mapping rule with the core network and the base station, comprising:
the terminal receives a data packet from a QoS flow;
and acquiring a corresponding IP packet from the data packet, and acquiring an IP flow identifier according to IP information carried in the IP packet.
16. The method of claim 12, wherein the terminal controls mapping of IP flow and QoS flow based on the mapping rule with the core network and the base station, comprising:
determining whether a core network is configured with mapping rules of IP flow and QoS flow; if not, initiating a PDU session establishment request;
if yes, determining whether the IP flow is newly built, and if so, mapping a corresponding QoS flow for the IP flow; if the IP flow is the existing IP flow, directly acquiring the existing QoS flow;
and carrying the data packet of the IP flow onto the QoS flow to be sent.
17. A mapping device of IP flow and QoS flow of network protocol is characterized in that the device is applied to a core network and comprises:
the device comprises a setting module, a base station and a terminal, wherein the setting module is used for configuring the preset mapping rules of IP flow and QoS flow to the base station and the terminal through the signaling during service establishment;
and the first transmission module is used for controlling the mapping of the IP flow and the QoS flow by the base station and the terminal respectively according to the mapping rule in the data transmission process.
18. A mapping device of IP flow and QoS flow of network protocol is characterized in that the device is applied to a terminal and comprises:
the receiving module is used for receiving the mapping rules of IP flow and QoS flow configured by the core network through the signaling when the service is established;
and the second transmission module is used for controlling the mapping of IPflow and QoS flow based on the mapping rule by the core network and the base station in the data transmission process.
19. An apparatus for mapping IP flow and QoS flow of a network protocol, comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1-11 or to perform the steps of the method of any one of claims 12-16 when running the computer program.
20. A storage medium having stored thereon a computer program for performing the steps of the method of any of claims 1-11 or performing the steps of the method of any of claims 12-16 when executed by a processor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022033251A1 (en) * | 2020-08-11 | 2022-02-17 | 中国移动通信有限公司研究院 | Data transmission method and device |
| CN115633358A (en) * | 2022-12-07 | 2023-01-20 | 深圳国人无线通信有限公司 | Method and system for improving service safety capability of 5G terminal |
| WO2024016678A1 (en) * | 2022-07-19 | 2024-01-25 | 中兴通讯股份有限公司 | Service guarantee method and system, storage medium, and electronic device |
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| CN107027151A (en) * | 2017-03-28 | 2017-08-08 | 北京小米移动软件有限公司 | Ensure the method and device of service quality |
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| CN107027151A (en) * | 2017-03-28 | 2017-08-08 | 北京小米移动软件有限公司 | Ensure the method and device of service quality |
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| ""R2-1710394 Considerations on one bit RQI"", 《3GPP TSG_RAN\WG2_RL2》 * |
| HUAWEI: "R3-171254 "Open issues for QoS"", 《3GPP TSG_RAN\WG3_IU》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033251A1 (en) * | 2020-08-11 | 2022-02-17 | 中国移动通信有限公司研究院 | Data transmission method and device |
| WO2024016678A1 (en) * | 2022-07-19 | 2024-01-25 | 中兴通讯股份有限公司 | Service guarantee method and system, storage medium, and electronic device |
| CN115633358A (en) * | 2022-12-07 | 2023-01-20 | 深圳国人无线通信有限公司 | Method and system for improving service safety capability of 5G terminal |
| CN115633358B (en) * | 2022-12-07 | 2023-03-21 | 深圳国人无线通信有限公司 | Method and system for improving service safety capability of 5G terminal |
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| CN111050363B (en) | 2023-03-28 |
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