CN118055507A - Data transmission method and device, electronic equipment and storage medium - Google Patents
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Abstract
The application provides a data transmission method, a data transmission device, electronic equipment and a storage medium. The method is applied to the base station in the 5G network and comprises the following steps: when receiving a downlink service flow which is sent by a UPF network element in the 5G network and needs to be sent to a second UE, if the downlink service flow is a high priority service flow with periodic characteristics, transmitting the downlink service flow by using a high priority DRB corresponding to the downlink service flow corresponding to a second QOS flow to which the downlink service flow belongs, or if the characteristic information of the downlink service flow hits a preset matching rule, transmitting the downlink service flow by using a high priority DRB corresponding to the downlink service flow corresponding to a second QOS flow carried in the downlink service flow. The application can meet the service demands of different QoS services.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission device, an electronic device, and a storage medium.
Background
In a 5G network, the core network (5G Core Network,5GC) is typically located in a core area such as a data center or cloud data center of an operator. The core network is a key part of the 5G network, and comprises a Mobility management entity (Mobility MANAGEMENT ENTITY, MME), a session management function (Session Management Function, SMF) network element, a user plane function (User Plane Function, UPF) network element and the like, is responsible for providing core network functions such as user authentication, session management, data transmission, control and the like, and is a management and control center of the whole 5G network.
And base stations, next generation radio access networks (Next Generation Radio Access Network, NG-RAN), are deployed in locations close to radio coverage and services, such as roofs, telecom towers, parks, factories, etc. The base station is a wireless access part of the 5G network, and is responsible for receiving wireless signals from User Equipment (UE), such as a mobile phone, an internet of things device, and the like, and connecting to the core network to realize data communication.
Since the core network is deployed in the core area, and private network networks with special requirements such as a park and an intelligent factory need to be built under the condition that the configuration of the core network cannot be modified, the private network networks may need to guarantee the QoS priority of specific service flows carried in the same QoS Flow (Flow) of the same protocol data unit (Protocol Data Unit, PDU) session so as to meet the specific service requirements, so how to meet the service requirements of the services is one of the technical problems to be solved currently.
Disclosure of Invention
In order to overcome the problems in the related art, the application provides a data transmission method, a data transmission device, electronic equipment and a storage medium.
According to a first aspect of an embodiment of the present application, there is provided a data transmission method, the method being applied to a base station in a 5G network, the method comprising:
For each target traffic Flow of at least one obtained high priority target traffic Flow with periodic characteristics belonging to a first Qos Flow, when a first time is reached, transmitting, by using a high priority data radio bearer (Data Radio Bearer, DRB) corresponding to the target traffic Flow to a first User Equipment (User Equipment, UE) in the 5G network, an uplink traffic Flow belonging to the first Qos Flow, wherein the first traffic Flow carries a traffic data adaptation protocol (SERVICE DATA Adaption Protocol, SDAP) header and the SDAP header includes a first Qos Flow identifier (qop Flow ID, QFI) corresponding to the first Qos Flow and a first indication message of a mapping indication (REFLECTIVE QOS FLOW TO DRB MAPPING INDICATION, RDI) of a Qos Flow to a DRB, so that after the first indication message is received by the first UE, the uplink traffic Flow belonging to the first Qos Flow is transmitted by using a high priority DRB corresponding to the target traffic Flow, and all target traffic flows are sequentially arranged from the high priority flows to the first base station in the first time, and the first time is calculated based on the first time cycle, and the time is longer than the first time cycle when the first traffic Flow is reached by the first UE, and the first time is calculated;
When reaching a third time, sending a second indication message carrying the SDAP header to the first UE by using a common priority DRB corresponding to the first Qos flow, so that the first UE transmits uplink service flows belonging to the first Qos flow by using the common priority DRB corresponding to the first Qos flow after receiving the second indication message, wherein the third time is a second time period which is positioned after the second time and is spaced from the second time in the sending period, and the second time period is calculated by the base station based on the second time; and/or the number of the groups of groups,
When a downlink service flow which is sent by a UPF network element in the 5G network and needs to be sent to a second UE is received, if the downlink service flow is a high priority service flow with periodic characteristics, transmitting the downlink service flow by using a high priority DRB corresponding to the downlink service flow corresponding to a second Qos flow to which the downlink service flow belongs, or if characteristic information of the downlink service flow hits a preset matching rule, transmitting the downlink service flow by using a high priority DRB corresponding to the downlink service flow corresponding to the second QOS flow carried in the downlink service flow.
According to a second aspect of embodiments of the present application, there is provided a data transmission apparatus for use in a base station in a 5G network, the apparatus comprising:
A first transmission module, configured to send, to a first UE in the 5G network that transmits the target traffic stream of the entry, a first indication message carrying an SDAP header and including a first QFI and RDI corresponding to the first Qos stream, to a first UE in the SDAP header that transmits the target traffic stream of the entry, when a first time arrives, using a high priority DRB corresponding to the target traffic stream of the entry, where the first time is located in a second time period in which the target traffic stream of the entry is corresponding to the target traffic stream of the entry, after receiving the first indication message, to transmit an uplink traffic stream belonging to the first Qos stream using a high priority DRB corresponding to the target traffic stream of the entry, and calculate, based on the first time period and the second time period, the first time period being calculated by the first UE;
A second transmission module, configured to send, to the first UE, a second indication message carrying the SDAP header by using a common priority DRB corresponding to the first Qos flow when a third time arrives, so that the first UE, after receiving the second indication message, transmits, by using a common priority DRB corresponding to the first Qos flow, an uplink traffic flow belonging to the first Qos flow, where the third time is located after and spaced from the second time by a second duration, and the second duration is calculated by the base station based on the second time; and/or the number of the groups of groups,
And the third transmission module is used for transmitting the downlink service flow by using the high priority DRB corresponding to the downlink service flow corresponding to the second Qos flow to which the downlink service flow belongs when the downlink service flow which is transmitted by the UPF network element in the 5G network and needs to be transmitted to the second UE is received, or transmitting the downlink service flow by using the high priority DRB corresponding to the downlink service flow corresponding to the second Qos flow carried in the downlink service flow if the characteristic information of the downlink service flow hits a preset matching rule.
According to a third aspect of embodiments of the present application, there is provided an electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: the method steps for realizing the data transmission method are realized.
According to a fourth aspect of embodiments of the present application, there is provided a computer-readable storage medium having stored therein a computer program which, when executed by a processor, implements the method steps of the data transmission method described above.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
In the embodiment of the application, the base station can control the downlink service flow of the QoS flow sent to the UE side and/or at least one high-priority target service flow with periodic characteristics of the QoS flow on the UE side based on different priority DRB corresponding to any QoS flow to realize QoS priority guarantee so as to meet the service requirements of different QoS services.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic flow chart of a data transmission method according to an embodiment of the present application;
FIG. 2 is a second flow chart of a data transmission method according to the embodiment of the application;
Fig. 3 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the application. The word "if" or "if" as used herein may be interpreted as "at … …" or "when … …", depending on the context.
The embodiments of the present application will be described in detail.
The embodiment of the application provides a data transmission method, which is applied to a base station in a 5G network, as shown in fig. 1, and can comprise the following steps:
S11, for each target service flow in at least one obtained high-priority target service flow with periodic characteristics, when the first time is reached, using a high-priority DRB corresponding to the target service flow corresponding to the first Qos flow to send a first indication message carrying an SDAP header and comprising a first QFI and an RDI corresponding to the first Qos flow to a first UE transmitting the target service flow in a 5G network, so that the first UE transmits an uplink service flow belonging to the first Qos flow by using the high-priority DRB corresponding to the target service flow after receiving the first indication message.
In this step, all the target traffic flows are arranged in order of priority from high to low, and the higher the priority of the target traffic flow is, the higher the priority of the corresponding DRB is.
And the first time is located before the second time when the target traffic flow arrives at the base station in the transmission period corresponding to the target traffic flow and is a first time interval between the first time and the second time in the transmission period, and the first time is calculated by the base station at least based on the second time, the transmission period and the calculated loopback time delay corresponding to the high priority DRB.
And S12, when the third time is reached, a second indication message carrying the SDAP head is sent to the first UE by using the common priority DRB corresponding to the first Qos flow, so that the first UE transmits the uplink service flow belonging to the first Qos flow by using the common priority DRB corresponding to the first Qos flow after receiving the second indication message.
In this step, the third time is a second time period located after the second time and spaced from the second time period in the transmission period, and the second time period is calculated by the base station based on the second time period.
And S13, when receiving a downlink service flow which is transmitted by a UPF network element in the 5G network and needs to be transmitted to a second UE, if the downlink service flow is a high-priority service flow with periodic characteristics, transmitting the downlink service flow by using a high-priority DRB corresponding to a downlink service flow corresponding to a second Qos flow to which the downlink service flow belongs, or if characteristic information of the downlink service flow hits a preset matching rule, transmitting the downlink service flow by using a high-priority DRB corresponding to a downlink service flow corresponding to a second QFI carried in the downlink service flow.
It should be noted that, in the embodiment of the present application, the base station may execute the above step S11 and the above step S12 to satisfy Qos priority guarantee for uplink transmission of at least one high priority traffic flow with a periodic characteristic.
In this case, for the first UE, when the UE needs to transmit traffic flows belonging to the first Qos flow other than the high priority target traffic flow having the periodicity characteristic and does not receive the related indication message from the base station, the first UE transmits the traffic flows according to the uplink transmission scheme notified by the existing base station, for example, the first UE may transmit the uplink traffic flows using the default DRB notified by the base station.
Aiming at Qos flows of high-priority service flows which do not have periodic characteristics in corresponding service flows, the first UE still transmits according to the existing uplink transmission flow.
For the base station, when the downlink service flow of the first Qos flow is received, transmission is still performed according to the existing downlink transmission flow. For example, the base station may transmit the downlink traffic flow using a default DRB corresponding to the first Qos flow.
The base station may also perform only the above step S13 to satisfy Qos priority guarantee for downlink transmission of a high priority traffic flow of Qos flows.
Here, the high priority traffic flows for Qos flows may include only high priority traffic flows having a periodic characteristic; only the high-priority traffic stream having no periodicity characteristic may be included, and the high-priority traffic stream having periodicity characteristic and the high-priority traffic stream having no periodicity characteristic may be included.
In this case, for the first UE, when a traffic flow of any Qos flow of any PDU session needs to be sent, transmission is still performed according to the existing uplink transmission flow.
The base station may further perform the above steps S11 to S13 to satisfy Qos priority guarantees for uplink and downlink of at least one high priority traffic flow with periodic characteristics of Qos flows, or to satisfy Qos priority guarantees for uplink and downlink of at least one high priority traffic flow with periodic characteristics of Qos flows.
In this case, the transmission manner in which the first UE transmits the Qos flows of the first Qos flow other than the high priority target traffic flow having the periodicity characteristic and the Qos flow of the corresponding high priority traffic flow having no periodicity characteristic in the traffic flows has been described when the base station can perform the above step S11 and the above step S12, which will not be described in detail herein.
In the embodiment of the present application, the first UE and the second UE may be the same or different.
In the case where the first UE and the second UE are the same, the first Qos flow and the second Qos flow may belong to the same PDU session, or may belong to different PDU sessions.
Specifically, in the above step S11, the base station may acquire the target traffic flow with periodic characteristics, which belongs to the first quality of service Qos flow, by:
the first way is: at least one high priority target traffic stream featuring periodicity belonging to the first Qos stream is acquired from the received time sensitive communication assistance information (TIME SENSITIVE Communication Assistance Information, TSCAI).
The second way is: and acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from the service notification instruction input by the administrator.
Third mode: and acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction sent by a wireless access network intelligent Controller (RAN INTELLIGENT Controller, RIC) received through an E2 interface.
Fourth mode: and locally acquiring at least one high-priority target service flow with periodic characteristics, which belongs to the first Qos flow and is learned by the user.
Of course, in the embodiment of the present application, the base station may also obtain at least one high-priority target traffic flow with periodic characteristics, which belongs to the first Qos flow, through other manners, which are not listed here.
When the base station acquires at least one high-priority target traffic stream with a periodic characteristic, which belongs to the first Qos stream, the base station may acquire the transmission period of the high-priority target traffic streams together with the time (i.e., the second time) when the target traffic streams arrive at the base station in the corresponding transmission period. And, one of the transmission periods of the target traffic flows and the times each reaching the base station in the corresponding transmission period is different. For example, the transmission period of the traffic flow 1 of the Qos flow 1 and the traffic flow 2 of the Qos flow 1 corresponding to the PDU session 1 are the same, but the time for the two to reach the base station in the transmission period is different.
In addition, in the above step S11, the base station may calculate the first time period by:
The first time length is calculated by the following equation:
equation one: t_advance 1=t-t_delay_min+delta 1;
wherein t_advanced 1 is a first duration;
T is a second time;
t_delay_min is the minimum value of T_delay and T_traffic_period;
T_delay is a loopback time delay, the loopback time delay is obtained by the base station performing difference operation on fourth time and fifth time, the fifth time is the time when the base station uses the high priority DRB to send a third indication message carrying an SDAP header to the first UE after monitoring that the high priority DRB corresponding to the target service flow is established, and the fourth time is the time when the base station receives a response message for the third indication message sent by the first UE by using the high priority DRB;
t_traffic_period is a transmission period;
Delta1 is a preset first constant.
For example, taking the high priority traffic stream 1 with the periodicity characteristic of Qos stream 1 corresponding to PDU session 1 as an example, it is assumed that the transmission period of this traffic stream 1 is 20s, and the time for this traffic stream 1 to reach the base station in the transmission period is 6s, that is, the 6 th second in the transmission period of traffic stream 1 reaches the base station. Assuming that the first time calculated by the base station through the above formula one is 4s, the base station transmits a first indication message to the first UE when reaching the 4 th s within 20 s.
In the embodiment of the present application, after receiving the first indication message sent by the base station, the UE may send a response message for the first indication message to the base station by using the high priority DRB corresponding to the target traffic flow corresponding to the first Qos flow.
Specifically, in the above step S12, the base station may calculate the second duration by:
the second time period is calculated by the following formula two:
Formula II: t_advance 2=t+delta 2;
wherein t_advanced 2 is a second duration;
T is a second time;
delta2 is a preset second constant.
It should be noted that the preset first constant and the preset second constant may be set by an administrator according to actual network requirements and configured on the base station in advance.
It should be further noted that, in the embodiment of the present application, after receiving the second indication message sent by the base station, the UE may send a response message for the second indication message to the base station by using the common priority DRB corresponding to the first Qos flow.
Further, in the embodiment of the present application, when receiving the downlink traffic flow sent by the UPF network element and required to be sent to the second UE, the base station may further perform the following operations:
If the downlink traffic flow is not a high priority traffic flow with periodic characteristics or the characteristic information of the downlink traffic flow does not hit a preset matching rule, the common priority DRB corresponding to the second Qos flow is used for transmitting the downlink traffic flow.
It should be noted that, in the embodiment of the present application, the first indication message, the second indication message, and the third indication message may be PDU packets in section 6.2.2.2 in 3gpp TS 37.324; the response messages corresponding to the first indication message, the second indication message and the third indication message may be End identification control protocol data units (End-Marker Control PDU) in section 6.2.2.3 of 3gpp TS 37.324.
The above data transmission method will be described in detail with reference to specific embodiments.
In a certain 5G network, it is assumed that a certain UE needs to transmit a high priority traffic stream 1 with periodicity corresponding to Qos stream 1 corresponding to PDU session 1 and a normal priority traffic stream 2 without periodicity.
Further, it is assumed that the base station in the 5G network acquires, from the service notification instruction input by the administrator, one high priority service flow 1 having a periodic characteristic corresponding to the Qos flow 1, and also acquires a transmission period (for example, 20 s) of the high priority service flow 1 and a time (for example, 6 s) when the high priority service flow 1 arrives at the base station within the transmission period, that is, 6s when the high priority service flow 1 arrives at the base station within 20 s.
Assuming that Qos flow 1 corresponds to a high priority DRB (e.g., DRB 1) and a normal priority DRB (e.g., DRB 2), initially, a base station in the 5G network informs the UE to use a default DRB (e.g., normal priority DRB) to transmit an uplink traffic flow corresponding to Qos flow 1.
As shown in fig. 2, after detecting that the high priority DRB corresponding to the Qos flow 1 is established, the base station uses the high priority DRB corresponding to the Qos flow 1 (i.e., DRB 1) to send an indication message 1 carrying the SDAP header 1 and including the QFI and RDI corresponding to the Qos flow 1 in the SDAP header 1 to the UE, and records the time when the indication message 1 is sent (e.g., T1).
After receiving the indication message 1, the UE sends a response message 1 for the indication message 1 to the base station using a high priority DRB (i.e., DRB 1) corresponding to the Qos flow 1.
The base station, upon receiving the response message 1, records the time (e.g., T2) when the response message 1 was received. And the base station calculates the difference between T2 and T1 to obtain the loop-back time delay of the DRB 1.
The base station then calculates a time (e.g., 4 s) using the above equation one and a time (e.g., 8 s) using the equation two based on the calculated loopback delay, the acquired transmission period (i.e., 20 s) of the high priority traffic stream 1, and the time (i.e., 6 s) at which the high priority traffic stream 1 arrives at the base station within the transmission period.
When reaching the 4 th s in the transmission period, the base station uses the DRB1 to transmit an indication message 2 carrying the SDAP header 1 to the UE.
After receiving the indication message 2, the UE uses the DRB1 to send a response message for the indication message 2 to the base station, and starts to use the DRB1 to transmit the uplink traffic flow belonging to the Qos flow 1, and the specific transmission process is the prior art and will not be described in detail herein.
When the base station reaches the 8 th s in the transmission period, the indication message 3 carrying the SDAP header 1 is transmitted to the UE by using the DRB 2.
After receiving the indication message 3, the UE uses DRB2 to send a response message for the indication message 3 to the base station, and starts to use DRB2 to transmit the uplink traffic flow belonging to Qos flow 1, and the specific transmission process is the prior art and will not be described in detail herein.
Subsequently, when the base station receives the downlink traffic flow sent by the UPF network element and required to be sent to the UE, it finds that the downlink traffic flow is a high priority traffic flow 1, and at this time, the base station uses a high priority DRB (i.e., DRB 1) corresponding to the downlink traffic flow corresponding to the Qos flow (i.e., qos flow 1) to transmit the downlink traffic flow.
According to the technical scheme, the base station can control the downlink service flow of the QoS flow sent to the UE side and/or at least one high-priority target service flow with periodic characteristics of the QoS flow on the UE side based on different priority DRB corresponding to any QoS flow so as to realize QoS priority guarantee and meet the service requirements of different QoS services.
Based on the same inventive concept, the application also provides a data transmission device, which is applied to a base station in a 5G network, and the structure schematic diagram of the device is shown in fig. 3, and specifically comprises:
a first transmission module 31, configured to send, to a first user equipment UE in the 5G network that transmits the target traffic stream, a first indication message carrying an SDAP header and including a first QFI and RDI corresponding to the first Qos stream, to a first user equipment UE in the SDAP header that includes the first QFI and RDI corresponding to the first Qos stream, when a first time is reached, using a high priority DRB corresponding to the target traffic stream, where all target traffic streams are arranged in order of priority from high to low, the higher the priority of the target traffic stream is, so that the first UE transmits, after receiving the first indication message, an uplink traffic stream belonging to the first Qos stream using the high priority DRB corresponding to the target traffic stream, the first time is located in the first time period corresponding to the target traffic stream, the higher the first time is, and the time delay is calculated based on the first time period and the second time period corresponding to the first time period;
A second transmission module 32, configured to send, to the first UE, a second indication message carrying the SDAP header using a common priority DRB corresponding to the first Qos flow when a third time arrives, so that the first UE, after receiving the second indication message, transmits, using a common priority DRB corresponding to the first Qos flow, an uplink traffic flow belonging to the first Qos flow, where the third time is a second duration after and spaced from the second time, and the second duration is calculated by the base station based on the second time; and/or the number of the groups of groups,
And a third transmission module 33, configured to, when a downlink traffic flow sent by a UPF network element in the 5G network and required to be sent to a second UE is received, transmit the downlink traffic flow using a high priority DRB corresponding to the downlink traffic flow corresponding to a second Qos flow to which the downlink traffic flow belongs, if the downlink traffic flow is a high priority traffic flow with periodic characteristics, or transmit the downlink traffic flow using a high priority DRB corresponding to the downlink traffic flow corresponding to the second Qos flow carried in the downlink traffic flow if characteristic information of the downlink traffic flow hits a preset matching rule.
Preferably, the first transmission module 31 is specifically configured to obtain at least one high priority target traffic flow with periodic characteristics, which belongs to the first Qos flow, by:
acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from the received time-sensitive communication auxiliary information TSCAI; or alternatively
Acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction input by an administrator; or alternatively
Acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction sent by a radio access network intelligent controller RIC received through an E2 interface; or alternatively
And locally acquiring at least one self-learned high-priority target service flow with periodic characteristics belonging to the first Qos flow.
Preferably, the first transmission module 31 is specifically configured to calculate the first duration by:
The first time length is calculated by the following equation:
equation one: t_advance 1=t-t_delay_min+delta 1;
wherein t_advanced 1 is a first duration;
T is the second time;
t_delay_min is the minimum value of T_delay and T_traffic_period;
T_delay is the loopback delay, and the loopback delay is obtained after the base station performs a difference operation on a fourth time and a fifth time, where the fifth time is a time when the base station uses a high priority DRB corresponding to the target service flow to send a third indication message carrying the SDAP header to the first UE after detecting that the high priority DRB is established, and the fourth time is a time when the base station receives a response message sent by the first UE using the high priority DRB and directed to the third indication message;
T_traffic_period is the transmission period;
Delta1 is a preset first constant.
Preferably, the second transmission module 32 is specifically configured to calculate the second duration by:
the second time period is calculated by the following formula two:
Formula II: t_advance 2=t+delta 2;
wherein t_advanced 2 is a second duration;
T is the second time;
delta2 is a preset second constant.
Preferably, the third transmission module 33 is further configured to:
And if the downlink service flow is not a high-priority service flow with periodic characteristics or the characteristic information of the downlink service flow does not hit a preset matching rule, transmitting the downlink service flow by using a common priority DRB corresponding to the second Qos flow.
According to the technical scheme, the base station can control the downlink service flow of the QoS flow sent to the UE side and/or at least one high-priority target service flow with periodic characteristics of the QoS flow on the UE side based on different priority DRB corresponding to any QoS flow so as to realize QoS priority guarantee and meet the service requirements of different QoS services.
An embodiment of the present application also provides an electronic device, as shown in fig. 4, including a processor 41 and a machine-readable storage medium 42, the machine-readable storage medium 42 storing machine-executable instructions executable by the processor 41, the processor 41 being caused by the machine-executable instructions to: the method for transmitting the data is realized.
The machine-readable storage medium may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. In the alternative, the machine-readable storage medium may also be at least one memory device located remotely from the foregoing processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
In yet another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program which, when executed by a processor, implements the steps of the data transmission method described above.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (12)
1. A data transmission method, wherein the method is applied to a base station in a 5G network, the method comprising:
For each target traffic flow in at least one obtained high priority target traffic flow with periodic characteristics, when a first time is reached, using a high priority Data Radio Bearer (DRB) corresponding to the target traffic flow corresponding to the first Qos flow, sending a first User Equipment (UE) in the 5G network for transmitting the target traffic flow, wherein the first user equipment carries a traffic data adaptation protocol (SDAP) header, the SDAP header comprises a first indication message of a first Qos Flow Identifier (QFI) corresponding to the first Qos flow and a mapping indication (RDI) of the Qos flow to the DRB, so that the first UE transmits uplink traffic flows belonging to the first Qos flow by using the high priority DRB corresponding to the target traffic flow after receiving the first indication message, and all target traffic flows are arranged according to a sequence of priority from high to low, the higher priority of the target traffic flow is higher than the corresponding DRB, the first traffic flow is in the first time, and the first time delay is calculated based on the first time period, the first time period is calculated before the first time period is reached by the first time, and the second time period is calculated;
When reaching a third time, sending a second indication message carrying the SDAP header to the first UE by using a common priority DRB corresponding to the first Qos flow, so that the first UE transmits uplink service flows belonging to the first Qos flow by using the common priority DRB corresponding to the first Qos flow after receiving the second indication message, wherein the third time is a second time period which is positioned after the second time and is spaced from the second time in the sending period, and the second time period is calculated by the base station based on the second time; and/or the number of the groups of groups,
When a downlink service flow which is sent by a user plane function UPF network element in the 5G network and needs to be sent to a second UE is received, if the downlink service flow is a high priority service flow with periodic characteristics, transmitting the downlink service flow by using a high priority DRB corresponding to the downlink service flow corresponding to a second Qos flow to which the downlink service flow belongs, or if characteristic information of the downlink service flow hits a preset matching rule, transmitting the downlink service flow by using a high priority DRB corresponding to the downlink service flow corresponding to a second QOS flow carried in the downlink service flow.
2. The method according to claim 1, characterized in that at least one high priority target traffic flow with periodic characteristics belonging to the first Qos flow is acquired by:
acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from the received time-sensitive communication auxiliary information TSCAI; or alternatively
Acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction input by an administrator; or alternatively
Acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction sent by a radio access network intelligent controller RIC received through an E2 interface; or alternatively
And locally acquiring at least one self-learned high-priority target service flow with periodic characteristics belonging to the first Qos flow.
3. The method of claim 1, wherein the first time period is calculated by:
The first time length is calculated by the following equation:
equation one: t_advance 1=t-t_delay_min+delta 1;
wherein t_advanced 1 is a first duration;
T is the second time;
t_delay_min is the minimum value of T_delay and T_traffic_period;
T_delay is the loopback delay, and the loopback delay is obtained after the base station performs a difference operation on a fourth time and a fifth time, where the fifth time is a time when the base station uses a high priority DRB corresponding to the target service flow to send a third indication message carrying the SDAP header to the first UE after detecting that the high priority DRB is established, and the fourth time is a time when the base station receives a response message sent by the first UE using the high priority DRB and directed to the third indication message;
T_traffic_period is the transmission period;
Delta1 is a preset first constant.
4. The method of claim 1, wherein the second time period is calculated by:
the second time period is calculated by the following formula two:
Formula II: t_advance 2=t+delta 2;
wherein t_advanced 2 is a second duration;
T is the second time;
delta2 is a preset second constant.
5. The method according to claim 1, wherein the method further comprises:
And if the downlink service flow is not a high-priority service flow with periodic characteristics or the characteristic information of the downlink service flow does not hit a preset matching rule, transmitting the downlink service flow by using a common priority DRB corresponding to the second Qos flow.
6. A data transmission apparatus for use in a base station in a 5G network, the apparatus comprising:
A first transmission module, configured to, for each target traffic flow of at least one obtained high priority target traffic flow with periodicity characteristic, transmit, when a first time arrives, an uplink traffic flow belonging to the first Qos flow using a high priority DRB corresponding to the target traffic flow, where all target traffic flows are arranged in order from high priority to low priority, a first user equipment UE in the 5G network transmitting the target traffic flow sends a first indication message carrying a service data adaptation protocol SDAP header and including a first Qos flow identifier QFI corresponding to the first Qos flow and a mapping indication RDI of the Qos flow in the SDAP header, so that the first UE, after receiving the first indication message, uses the high priority DRB corresponding to the target traffic flow to transmit the uplink traffic flow belonging to the first Qos flow, and the higher priority of the target traffic flow is higher than the corresponding DRB, and calculates a time delay between the first time-lapse and the first time-lapse period and the first time-lapse based on the first time-lapse period;
A second transmission module, configured to send, to the first UE, a second indication message carrying the SDAP header by using a common priority DRB corresponding to the first Qos flow when a third time arrives, so that the first UE, after receiving the second indication message, transmits, by using a common priority DRB corresponding to the first Qos flow, an uplink traffic flow belonging to the first Qos flow, where the third time is located after and spaced from the second time by a second duration, and the second duration is calculated by the base station based on the second time; and/or the number of the groups of groups,
And the third transmission module is configured to, when a downlink traffic flow sent by a user plane function UPF network element in the 5G network and required to be sent to a second UE is received, transmit the downlink traffic flow by using a high priority DRB corresponding to the downlink traffic flow corresponding to a second Qos flow to which the downlink traffic flow belongs if the downlink traffic flow is a high priority traffic flow with periodic characteristics, or transmit the downlink traffic flow by using a high priority DRB corresponding to the downlink traffic flow corresponding to the second Qos flow carried in the downlink traffic flow if characteristic information of the downlink traffic flow hits a preset matching rule.
7. The apparatus according to claim 6, wherein the first transmission module is configured to obtain at least one high priority target traffic flow with periodic characteristics belonging to the first Qos flow by:
acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from the received time-sensitive communication auxiliary information TSCAI; or alternatively
Acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction input by an administrator; or alternatively
Acquiring at least one high-priority target service flow with periodic characteristics belonging to the first Qos flow from a service notification instruction sent by a radio access network intelligent controller RIC received through an E2 interface; or alternatively
And locally acquiring at least one self-learned high-priority target service flow with periodic characteristics belonging to the first Qos flow.
8. The apparatus of claim 6, wherein the first transmission module is configured to calculate the first duration by:
The first time length is calculated by the following equation:
equation one: t_advance 1=t-t_delay_min+delta 1;
wherein t_advanced 1 is a first duration;
T is the second time;
t_delay_min is the minimum value of T_delay and T_traffic_period;
T_delay is the loopback delay, and the loopback delay is obtained after the base station performs a difference operation on a fourth time and a fifth time, where the fifth time is a time when the base station uses a high priority DRB corresponding to the target service flow to send a third indication message carrying the SDAP header to the first UE after detecting that the high priority DRB is established, and the fourth time is a time when the base station receives a response message sent by the first UE using the high priority DRB and directed to the third indication message;
T_traffic_period is the transmission period;
Delta1 is a preset first constant.
9. The apparatus according to claim 6, wherein the second transmission module is configured to calculate the second duration by:
the second time period is calculated by the following formula two:
Formula II: t_advance 2=t+delta 2;
wherein t_advanced 2 is a second duration;
T is the second time;
delta2 is a preset second constant.
10. The apparatus of claim 6, wherein the third transmission module is further configured to:
And if the downlink service flow is not a high-priority service flow with periodic characteristics or the characteristic information of the downlink service flow does not hit a preset matching rule, transmitting the downlink service flow by using a common priority DRB corresponding to the second Qos flow.
11. An electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: method steps of any one of claims 1-5 are implemented.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein a computer program which, when executed by a processor, implements the method steps of any of claims 1-5.
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