CN110267286B - Data transmission method, device, access network equipment and storage medium - Google Patents
Data transmission method, device, access network equipment and storage medium Download PDFInfo
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- CN110267286B CN110267286B CN201910584187.7A CN201910584187A CN110267286B CN 110267286 B CN110267286 B CN 110267286B CN 201910584187 A CN201910584187 A CN 201910584187A CN 110267286 B CN110267286 B CN 110267286B
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Abstract
The application relates to a data transmission method, a data transmission device, access network equipment and a storage medium. The method comprises the following steps: detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data; when the preset adjustment condition is met, judging whether a parameter value of a wireless data bearer in a default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises a mapping relation between a service data type and the wireless data bearer; and sending the dynamically adjusted mapping relation to the terminal. The method can effectively ensure the QoS flow service characteristics of the 5G service and improve the system performance of the 5GNR system.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission device, an access network device, and a storage medium.
Background
With the development of communication technology, 5G technology has emerged, and unlike EPS (Evolved Packet System ) bearers of 4GLTE (Long Term Evolution, long term evolution), 5G introduces a QoS framework of finer granularity QoS (Quality of Servers) flows. In a 5G communication system, an SDAP (Service Data Adaptation Protocol ) sublayer is added on a user plane of a protocol stack, and the main function of the SDAP is to store a mapping of QoS flows and data radio bearers (Data Radio Bearer, DRBs) and identify uplink and downlink data packets (QoS flows ID, QFI), and the user plane can dynamically schedule the QoS flows by using a scheduler module to ensure performance of each QoS flow.
When user plane QoS flows data is transmitted, SDAP sub-layer firstly maps QoS flows service to DRB bearing, then carries out logic channel mapping, in traditional technology, when mapping, a DRB is generally established for each QoS flows service, then the DRB is informed to user terminal, so as to carry out data transmission on the DRB.
However, when the load of the 5G service increases in the above method, the QoS flow service characteristics of the 5G service cannot be guaranteed.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a data transmission method, apparatus, access network device, and storage medium.
A data transmission method, the method comprising:
detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data;
when the preset adjustment condition is met, judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
and sending the dynamically adjusted mapping relation to the terminal.
In one embodiment, before the detecting whether the current service data meets the preset adjustment condition, the method further includes:
receiving parameters of service data; the parameters of the service data comprise service data types, and the service data comprise at least one QoS stream service data;
and determining the wireless data bearing corresponding to the service data type from the default mapping relation, and sending the wireless data bearing corresponding to the service data type to the terminal.
In one embodiment, the preset adjustment condition includes parameters of the arrival statistics period and/or the reception of new service data.
In one embodiment, when the preset adjustment condition is that the statistical period is reached, the determining whether the parameter value of the radio data bearer in the default mapping relationship is greater than a preset threshold value, and dynamically adjusting the default mapping relationship according to the determination result includes:
judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value or not;
if the parameter value of at least one wireless data bearer is larger than the preset threshold value, qoS parameters of a plurality of QoS stream service data corresponding to the target wireless data bearer are obtained; the target wireless data bearer is a wireless data bearer with a parameter value larger than the preset threshold value;
And comparing the QoS parameters of the QoS flow service data in the target wireless data bearer, and dynamically adjusting the default mapping relation according to the comparison result.
In one embodiment, the dynamically adjusting the default mapping relationship according to the comparison result includes:
acquiring target QoS flow service data in the comparison result, wherein the target QoS flow service data is QoS flow service data with highest QoS parameter requirement;
establishing a new first wireless data bearer for the target QoS flow service data;
and modifying the default mapping relation according to the mapping relation between the service data type corresponding to the target QoS flow service data and the new first wireless data bearer.
In one embodiment, when the preset adjustment condition is a parameter of receiving new service data, the determining whether the parameter value of the radio data bearer in the default mapping relationship is greater than a preset threshold value, and dynamically adjusting the default mapping relationship according to the determination result includes:
determining a new service data type according to the parameters of the new service data;
judging whether the new service data type has an established wireless data bearer according to the default mapping relation;
If yes, judging whether the parameter value of the wireless data bearing corresponding to the new service data type is larger than the preset threshold value; if the mapping relation is larger than the first mapping relation, a new second wireless data bearing is established for the new service data type, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearing.
In one embodiment, the method further comprises:
if not, determining the wireless data bearing corresponding to the new service data type according to the default mapping relation.
In one embodiment, the method further comprises:
if not, establishing the wireless data bearing corresponding to the new service data type according to the default mapping relation.
In one embodiment, the parameter values of the radio data bearer include a load of the radio data bearer and a packet loss rate of the radio data bearer, the preset threshold includes a first threshold and a second threshold, and the determining whether the parameter value of the radio data bearer corresponding to the new service data type is greater than the preset threshold includes:
judging whether the load of the wireless data bearer is larger than a first threshold value or not, and judging whether the packet loss rate of the wireless data bearer is larger than a second threshold value or not;
If the load of the wireless data bearer is greater than a first threshold value and the packet loss rate of the wireless data bearer is greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is greater than the preset threshold value;
and if the load of the wireless data bearer is not greater than a first threshold value and/or the packet loss rate of the wireless data bearer is not greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is not greater than the preset threshold value.
A data transmission apparatus, the apparatus comprising:
the detection module is used for detecting whether the current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data;
the adjustment module is used for judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value or not when the preset adjustment condition is met, and dynamically adjusting the default mapping relation according to a judgment result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
and the sending module is used for sending the dynamically adjusted mapping relation to the terminal.
An access network device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data;
when the preset adjustment condition is met, judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
and sending the dynamically adjusted mapping relation to the terminal.
A readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data;
when the preset adjustment condition is met, judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
And sending the dynamically adjusted mapping relation to the terminal.
According to the data transmission method, the device, the access network equipment and the storage medium, whether the parameter value in the wireless data bearer in the default mapping relation is larger than the preset threshold value can be judged by detecting whether the current service data meets the preset adjustment condition or not, the default mapping relation can be dynamically adjusted according to the judgment result, and then the adjusted mapping relation can be sent to the terminal, wherein the current service data comprises at least one QoS (quality of service) service data, and the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer. In this embodiment, since the mapping relationship is a mapping relationship between a service data type and a radio data bearer, and the current service data includes at least one QoS flow service data, the default mapping relationship in this embodiment is to establish the same radio data bearer for the same service data type, and establish different radio data bearers for different service data types, so that on one hand, different types of service data can be distinguished, and on the other hand, signaling overhead caused by establishing a radio data bearer for each QoS service data can be reduced. In addition, when the load of the 5G service increases, the default mapping relationship can be adjusted according to the parameter value of the radio data bearer in the embodiment, so that effective guarantee can be provided for the QoS flow service feature of the 5G service, and meanwhile, the system performance of the 5GNR system can be improved.
Drawings
FIG. 1 is a diagram of an application environment for a data transmission method in one embodiment;
FIG. 2 is a flow chart of a data transmission method in one embodiment;
FIG. 3 is a flow chart of a data transmission method according to another embodiment;
FIG. 4 is a flow chart of a data transmission method in another embodiment;
FIG. 5 is a flow chart of a data transmission method according to another embodiment;
FIG. 6 is a flow chart of a data transmission method in another embodiment;
FIG. 7 is a block diagram of a data transmission device in one embodiment;
FIG. 8 is a block diagram of a data transmission device in another embodiment;
fig. 9 is a schematic diagram of an internal structure of an access network device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The data transmission method provided by the application can be applied to an application environment shown in fig. 1. Wherein the terminal 102 communicates with the access network device 104 via a network. Wherein the terminal 102 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, portable wearable devices, and the like; the access network device 104 may be a base station, which may also be referred to by those skilled in the art as a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), an Access Point (AP), or some other suitable terminology, that provides a wireless access point to a core network for any number of terminals.
In one embodiment, a data transmission method is provided, and an example of application of the method to the access network device in fig. 1 is described, where the embodiment relates to a specific process how the access network device dynamically adjusts a default mapping relationship when current service data meets a preset adjustment condition. As shown in fig. 2, the method may include the steps of:
s202, detecting whether current service data meets preset adjustment conditions; the current traffic data includes at least one QoS flow traffic data.
It should be noted that the method of this embodiment may be applied to a 5GNR (New Radio) system, and of course, may also be applied to a 4GLTE system, but this embodiment is described herein by taking an application to a 5GNR system as an example.
The current service data refers to the service data currently received by the access network equipment, and can be the service data existing in the access network equipment at present or can be the service data newly received, and the service data can be sent to the access network equipment by the core network equipment or can be sent to the access network equipment by the terminal; in addition, the service data herein is composed of QoS flow service data, and one service data may include one QoS flow service data, or may include a plurality of QoS flow service data, and typically includes a plurality of QoS flow service data. The preset adjustment conditions include parameters of the arrival statistics period and/or the receiving of new service data, and may be one or both of the arrival statistics period and the receiving of the new service data.
Specifically, after receiving the service data, the access network device may use an access decision module inside the access network device to determine whether the current service data meets a preset adjustment condition.
And S204, when the preset adjustment condition is met, judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer.
The default mapping relationship may be a mapping relationship preset in the access network device, and the default mapping relationship may be pre-stored in a register, where it is to be noted that the default mapping relationship is a mapping relationship between a service data type and a radio data bearer, that is, in the default mapping relationship, the same service data type corresponds to the same radio data bearer, and different service data types correspond to different radio data bearers, so that on one hand, different types of service data can be distinguished, and on the other hand, signaling overhead caused by establishing a radio data bearer for each QoS service data can be reduced; in this embodiment, when the default mapping relationship is dynamically adjusted, different radio data bearers may be established for part of service data in the same service data type, or other adjustment policies may be used, which are not specifically limited herein; alternatively, dynamic adjustment herein refers to not adjusting the mapping relationship only once, and may be adjusting the mapping relationship multiple times according to adjustment conditions. In addition, the mapping relationship includes a correspondence relationship between types of all current service data and radio data bearers, for example, current service data types include eMBB (enhanced mobile bandwidth), URLLC (ultra high reliability low latency communication), eMTC (large connection internet of things), signaling, etc., and a corresponding DRB (radio data bearer) may be preset for each of these, and a mapping relationship between each of the service data types and the DRBs may be established as a default mapping relationship.
On the other hand, the parameter value of the radio data bearer may be some parameter values of the radio data bearer in the actual use process, may be load, packet loss rate, etc., and the preset threshold may be determined according to the parameter value of the radio data bearer in the actual situation, which is not limited in this embodiment. In addition, before determining whether the parameter value of the radio data bearer is greater than the preset threshold, the access network device may or may not perform some operations, or may determine whether the parameter value of one radio data bearer is greater than the preset threshold, or determine whether the parameter values of a plurality of radio data bearers are greater than the preset threshold, which is not limited in this embodiment.
Specifically, when the access network device determines that the current service data meets the preset adjustment condition, then, whether the parameter value of the wireless data bearer is greater than the preset threshold value is determined, a determination result is obtained, and then, the access network device can dynamically adjust the default mapping relation according to the determination result.
S206, the mapping relation after dynamic adjustment is sent to the terminal.
The terminal may be one terminal or a plurality of terminals, which is not particularly limited in this embodiment.
Specifically, after each mapping relation adjustment, the access network device may send the adjusted mapping relation to the terminal, and then the terminal performs a next operation according to the adjusted mapping relation.
In the data transmission method, whether the parameter value in the wireless data bearer in the default mapping relation is larger than the preset threshold value can be judged by detecting whether the current service data meets the preset adjustment condition, and the default mapping relation can be dynamically adjusted according to the judgment result and then sent to the terminal, wherein the current service data comprises at least one QoS (quality of service) service data, and the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer. In this embodiment, since the mapping relationship is a mapping relationship between a service data type and a radio data bearer, and the current service data includes at least one QoS flow service data, the default mapping relationship in this embodiment is to establish the same radio data bearer for the same service data type, and establish different radio data bearers for different service data types, so that on one hand, different types of service data can be distinguished, and on the other hand, signaling overhead caused by establishing a radio data bearer for each QoS service data can be reduced. In addition, when the load of the 5G service increases, the default mapping relationship can be adjusted according to the parameter value of the radio data bearer in the embodiment, so that effective guarantee can be provided for the QoS flow service feature of the 5G service, and meanwhile, the system performance of the 5GNR system can be improved.
In another embodiment, another data transmission method is provided, where the embodiment relates to a specific process of receiving, by the access network device, a service data parameter before detecting whether the current service data meets a preset adjustment condition, where the service data parameter includes a service data type, and obtaining, from a default mapping relationship, a radio data bearer corresponding to the service data type. On the basis of the above embodiment, as shown in fig. 3, the method may further include the steps of:
s302, receiving parameters of service data; the parameters of the service data comprise the service data type, and the service data comprises at least one QoS flow service data.
The parameters of the service data may include the service data type, and may also include other parameters of the service data, for example, the data amount of the service data, and so on; the received service data may include one QoS flow service data, and may further include a plurality of QoS flow service data, etc.; in addition, the service data may be sent by the access network device to the access network device, or may be sent by the terminal to the access network device.
Specifically, the access network device receives service data sent by the core network device or the terminal.
S304, determining the wireless data bearing corresponding to the service data type from the default mapping relation, and sending the wireless data bearing corresponding to the service data type to the terminal.
Specifically, after receiving the parameters of the service data, the access network device may obtain the service data type from the parameters of the service data, then use the service data type to search in a default mapping relationship, obtain a radio data bearer corresponding to the service data type, and send the obtained radio data bearer to the terminal.
It should be noted that, in this embodiment, the application scenario may be when the terminal initially accesses the access network device, or when the terminal is lightly loaded (may also be considered that the resource occupancy rate is lower than a threshold), and a default mapping relationship is adopted in the application scenario, so that a same radio data bearer may be established for the same type of service data, so that the number of radio data bearers established may be reduced, and signaling overhead when the radio data bearers are established may also be reduced.
According to the data transmission method provided by the embodiment, firstly, parameters of service data are received, the parameters of the service data comprise service data types, the service data comprise at least one QoS stream service data, then a wireless data bearing corresponding to the service data types is determined from a default mapping relation, and the wireless data bearing is sent to a terminal. In this embodiment, due to the default mapping relationship, the same radio data bearer can be established for the same type of service data under the default mapping relationship, so that the number of radio data bearers established can be reduced, and signaling overhead when the radio data bearers are established can be reduced.
In another embodiment, another data transmission method is provided, where the embodiment relates to a possible implementation manner of how the access network device determines whether the parameter value of the radio data bearer in the default mapping relationship is greater than a preset threshold when the preset adjustment condition is that the statistics period is reached, and dynamically adjusts the default mapping relationship according to the determination result. On the basis of the above embodiment, as shown in fig. 4, the step S204 may include the following steps:
s402, judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value.
The parameter values of the wireless data bearer may include a load of the wireless data bearer, a packet loss rate of the wireless data bearer, and the like, and the preset threshold may include a first threshold and a second threshold; the first threshold may not be equal to the second threshold and, in addition, the radio data bearer may be compared to the first threshold and the radio data bearer may be compared to the second threshold.
Specifically, the access network device may obtain all the radio data bearers and parameter values corresponding to each radio data bearer from the default mapping relationship, and then, the access network device may compare the parameter values of each radio data bearer with preset thresholds respectively.
S404, if the parameter value of at least one wireless data bearer is larger than the preset threshold value, qoS parameters of a plurality of QoS stream service data corresponding to the target wireless data bearer are obtained; the target radio data bearer is a radio data bearer with a parameter value greater than a preset threshold.
The QoS parameters may include QCI (QoS Class Identifier ) and ARP (Allocation and Retention Priority, allocation and reservation priority), etc., and it should be noted that the QCI is different from the service data type; in addition, each radio data bearer may correspond to one QoS flow service data, or may correspond to a plurality of QoS flow service data, where each QoS flow service data has a corresponding QoS parameter, and in this embodiment, the case that the radio data bearer corresponds to a plurality of QoS flow service data is mainly targeted. The number of target radio bearers may be one or a plurality of, and this embodiment is not particularly limited.
Specifically, after comparing the parameter values of each radio data bearer with a preset threshold value, the access network device obtains a comparison result, and if at least one radio data bearer parameter value in the comparison result is greater than the preset threshold value, and the radio data bearer with the parameter value greater than the preset threshold value is recorded as a target radio data bearer, the access network device may obtain a plurality of QoS flow service data corresponding to the target radio data bearer from a default mapping relationship, and may also obtain QoS parameters corresponding to the plurality of QoS flow service data.
Alternatively, for those radio data bearers whose parameter values are not greater than the preset threshold, the access network device does not change their mapping relationship, and they still adopt the default mapping relationship.
S406, comparing QoS parameters of each QoS flow service data in the target wireless data bearer, and dynamically adjusting a default mapping relation according to the comparison result.
When comparing the QoS parameters of the QoS flow service data, only one of the QoS parameters may be compared, and a comparison result may be obtained according to the comparison of the one parameter; and comparing a plurality of QoS parameters, and comprehensively obtaining a comparison result according to the comparison result of each QoS parameter.
Specifically, after obtaining QoS parameters corresponding to each of the plurality of QoS flow service data of the target radio data bearer, the access network device may compare each QoS parameter to obtain a comparison result, and dynamically adjust a default mapping relationship according to the comparison result.
In adjusting the default mapping, as shown in fig. 5, one possible adjustment method may include the following steps:
s502, obtaining the target QoS flow service data in the comparison result, wherein the target QoS flow service data is the QoS flow service data with the highest QoS parameter requirement.
The highest QoS parameter requirement may be a QoS parameter with a maximum parameter value of the QoS parameters, or may be a QoS parameter with a maximum parameter value of the QoS parameters.
Specifically, after comparing each QoS parameter, the access network device may obtain the QoS parameter with the highest requirement, and meanwhile, may obtain QoS flow service data corresponding to the QoS parameter with the highest requirement, where the QoS flow service data is denoted as target QoS flow service data.
S504, a new first wireless data bearer is established for the target QoS flow service data.
The new first radio data bearer does not exist in the default mapping relationship, and a radio data bearer can be newly created for the target QoS flow service data, and it should be noted that the sum of the number of new radio data bearers created and the number of radio data bearers in the default mapping relationship does not exceed the number of preset radio data bearers, that is, does not exceed 32.
Specifically, after obtaining the target QoS flow service data, the access network device may reestablish a new radio data bearer for the target QoS flow service data, where the new radio data bearer is denoted as a new first radio data bearer. In the step, a new first wireless data bearer is newly established for the QoS flow service data with the highest QoS parameter requirement, so that the aim of data distribution can be achieved, and the QoS characteristic of the QoS flow service data with the highest QoS parameter requirement can be better ensured.
S506, according to the mapping relation between the service data type corresponding to the target QoS flow service data and the new first wireless data bearing, the default mapping relation is modified.
Specifically, after the access network device establishes a new first wireless data bearer for the target QoS flow service data, the access network device may also obtain a service data type to which the target QoS flow service data belongs, and then may establish a mapping relationship between the service data type of the target QoS flow service data and the new first wireless data bearer, and update and/or add the mapping relationship to a default mapping relationship, so as to obtain an adjusted mapping relationship.
Alternatively, for QoS flow traffic data with low QoS parameter requirements, their mapping relationship may not be changed, and they may still adopt a default mapping relationship.
In the data transmission method provided in this embodiment, when a preset adjustment condition is that a statistics period is reached, it is first determined whether a parameter value of each radio data bearer in a default mapping relationship is greater than a preset threshold, if the parameter value of at least one radio data bearer is greater than the preset threshold, qoS parameters of a plurality of QoS flow service data corresponding to a target radio data bearer are obtained, qoS parameters of each QoS flow service data in the target radio data bearer are compared, and the default mapping relationship is dynamically adjusted according to a comparison result, where the target radio data bearer is a radio data bearer whose parameter value is greater than the preset threshold. In this embodiment, since the default mapping relationship can be dynamically adjusted when each statistics period is reached, the default mapping relationship can be better adjusted when the 5G service load is increased or when the service data is changed, so that the QoS flow characteristic of the 5G service can be better ensured.
In another embodiment, another data transmission method is provided, where the embodiment relates to another possible implementation manner how the access network device determines whether the parameter value of the radio data bearer in the default mapping relationship is greater than a preset threshold when the preset adjustment condition is that a new service data parameter is received, and dynamically adjusts the default mapping relationship according to the determination result. On the basis of the above embodiment, as shown in fig. 6, the step S204 may include the following steps:
s602, determining new service data types according to the parameters of the new service data.
The parameters of the new service data may include the type of the new service data, which is recorded as the new service data type, and may include other parameters.
Specifically, after receiving the parameter of the new service data, the access network device may obtain the type of the new service data from the parameter, and record the type as the new service data type.
S604, judging whether the new service data type has the established wireless data bearing according to the default mapping relation.
In the embodiment of the present application, the default mapping relationship is preset in advance, and may include mapping relationships between all service data types and radio data bearers, where an established radio data bearer refers to a radio data bearer established for service data according to the default mapping relationship after the access network device obtains service data being transmitted in communication in an actual communication process or a data transmission process, and the transmitted service data is currently being transmitted using the radio data bearer. It should be noted that, the radio data bearer in the default mapping relationship exists in the mapping relationship, but is not necessarily established and used, and only established and used may be referred to as an established radio data bearer.
Specifically, after obtaining a new service data type, the access network device may find a radio data bearer corresponding to the new service type in a default mapping relationship, and find whether the radio data bearer has been established.
S606, if so, judging whether the parameter value of the wireless data bearing corresponding to the new service data type is larger than a preset threshold value; if the mapping relation is larger than the first mapping relation, a new second wireless data bearing is established for the new service data type, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearing.
In this embodiment, optionally, the parameter values of the radio data bearer may include a load of the radio data bearer, a packet loss rate of the radio data bearer, and the like, the preset threshold may include a first threshold and a second threshold, and the first threshold may be unequal to the second threshold, where the load of the radio data bearer and the packet loss rate of the radio data bearer may be obtained by statistics of a statistics module of the access network device, and at the same time the statistics module may transmit information such as the load and the packet loss rate of each radio data bearer obtained by the statistics to an SDAP (Service Data Adaptation Protocol ) sublayer mapping module of the access network device, and then the SDAP sublayer may perform operations such as comparing the data transmitted by the statistics module.
Specifically, in one possible implementation manner, after obtaining that a new service data type has an established radio data bearer, the access network device may continuously determine whether a parameter value of the radio data bearer is greater than a preset threshold, and when determining whether the parameter value is greater than the preset threshold, optionally, may determine whether a load of the radio data bearer is greater than a first threshold, and determine whether a packet loss rate of the radio data bearer is greater than a second threshold; optionally, if the load of the radio data bearer is greater than a first threshold and the packet loss rate of the radio data bearer is greater than a second threshold, the access network device may determine that the parameter value of the radio data bearer corresponding to the new service data type is greater than a preset threshold; the access network device may establish a new radio data bearer for the new service data and record the new radio data bearer as a new second radio data bearer, and may also establish a mapping relationship between the new service data type and the new second radio data bearer, and update and/or add the mapping relationship to a default mapping relationship, so as to obtain an adjusted mapping relationship.
And when judging whether the parameter value is greater than the preset threshold value, optionally, if not, determining the wireless data bearing corresponding to the new service data type according to the default mapping relation. Optionally, if the load of the radio data bearer is not greater than the first threshold and/or the packet loss rate of the radio data bearer is not greater than the second threshold, the access network device may determine that the parameter value of the radio data bearer corresponding to the new service data type is not greater than a preset threshold. That is, if the parameter value is not greater than the preset threshold value, the default mapping relation is not modified, a wireless data bearer corresponding to the new service data type is found from the default mapping relation, and the wireless data bearer is sent to the terminal.
Optionally, in another possible implementation manner, if the new service data type does not exist, a wireless data bearer corresponding to the new service data type is established according to a default mapping relationship. That is, when the access network device obtains that the new service data type does not have the established radio data bearer, the access network device can find the radio data bearer corresponding to the new service data type in the default mapping relationship, and establish the radio data bearer, so that the new service data can be transmitted on the established radio data bearer.
According to the data transmission method provided by the embodiment, when the preset adjustment condition is that the parameter of the new service data is received, the new service data type is firstly determined according to the parameter of the new service data, then whether the new service data type has the established wireless data bearer or not is judged according to the default mapping relation, if so, whether the parameter value of the wireless data bearer corresponding to the new service data type is larger than the preset threshold value can be continuously judged, if so, a new second wireless data bearer is established for the new wireless data bearer, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearer. In this embodiment, since the default mapping relationship can be dynamically adjusted each time the service data parameter is newly added, that is, when the service data is newly added, the default mapping relationship can be better adjusted when the 5G service load is added or when the service data is changed, so that the QoS flow characteristic of the 5G service can be better ensured.
It should be understood that, although the steps in the flowcharts of fig. 2-6 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-6 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or stages are performed necessarily occur in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
In one embodiment, as shown in fig. 7, there is provided a data transmission apparatus including: a detection module 10, an adjustment module 11 and a sending module 12, wherein:
a detection module 10, configured to detect whether current service data meets a preset adjustment condition; the current service data comprises at least one QoS stream service data;
the adjustment module 11 is configured to determine whether a parameter value of a radio data bearer in a default mapping relationship is greater than a preset threshold value when the preset adjustment condition is satisfied, and dynamically adjust the default mapping relationship according to a determination result, where the default mapping relationship includes a mapping relationship between a service data type and the radio data bearer;
And the sending module 12 is used for sending the dynamically adjusted mapping relation to the terminal.
Optionally, the preset adjustment conditions include parameters of the arrival statistics period and/or the reception of new service data.
The data transmission device provided in this embodiment may execute the above method embodiment, and its implementation principle and technical effects are similar, and will not be described herein.
In another embodiment, as shown in fig. 8, another data transmission device is provided, and the device may further include, on the basis of the above embodiment: a receiving module 13, a determining module 14, wherein:
a receiving module 13, configured to receive parameters of service data; the parameters of the service data comprise service data types, and the service data comprise at least one QoS stream service data;
and the determining module 14 is configured to determine a radio data bearer corresponding to the service data type from the default mapping relationship, and send the radio data bearer corresponding to the service data type to the terminal.
In another embodiment, when the preset adjustment condition is that a statistical period is reached, the adjustment module 11 may include: the device comprises a judging unit, an acquiring unit and a comparing unit, wherein:
The judging unit is used for judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value or not;
an obtaining unit, configured to obtain QoS parameters of a plurality of QoS flow service data corresponding to the target wireless data bearer if the parameter value of at least one wireless data bearer is greater than the preset threshold; the target wireless data bearer is a wireless data bearer with a parameter value larger than the preset threshold value;
and the comparison unit is used for comparing the QoS parameters of the QoS flow service data in the target wireless data bearer and dynamically adjusting the default mapping relation according to the comparison result.
Optionally, the comparing unit may include: the method comprises the steps of obtaining a subunit, establishing a subunit and modifying the subunit, wherein:
an obtaining subunit, configured to obtain target QoS flow service data in the comparison result, where the target QoS flow service data is QoS flow service data with a highest QoS parameter requirement;
a setting-up subunit, configured to set up a new first wireless data bearer for the target QoS flow service data;
and the modification subunit is used for modifying the default mapping relation according to the mapping relation between the service data type corresponding to the target QoS flow service data and the new first wireless data bearer.
In another embodiment, when the preset adjustment condition is a parameter of receiving new service data, the adjustment module 11 may include: a determining subunit and a judging subunit, wherein:
a determining subunit, configured to determine a new service data type according to the parameter of the new service data;
a judging subunit, configured to judge whether the new service data type has an established radio data bearer according to the default mapping relationship; if yes, judging whether the parameter value of the wireless data bearing corresponding to the new service data type is larger than the preset threshold value; if the mapping relation is larger than the first mapping relation, a new second wireless data bearing is established for the new service data type, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearing.
Optionally, the determining subunit may be further configured to determine, if the determination subunit is not greater than the predetermined mapping relationship, a radio data bearer corresponding to the new service data type.
Optionally, the determining subunit may be further configured to establish, if the new service data type does not exist, a radio data bearer corresponding to the new service data type according to the default mapping relationship.
In another embodiment, the parameter values of the radio data bearer include a load of the radio data bearer and a packet loss rate of the radio data bearer, the preset threshold includes a first threshold and a second threshold, and the determining subunit is further configured to determine whether the load of the radio data bearer is greater than the first threshold and determine whether the packet loss rate of the radio data bearer is greater than the second threshold; if the load of the wireless data bearer is greater than a first threshold value and the packet loss rate of the wireless data bearer is greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is greater than the preset threshold value; and if the load of the wireless data bearer is not greater than a first threshold value and/or the packet loss rate of the wireless data bearer is not greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is not greater than the preset threshold value.
The data transmission device provided in this embodiment may execute the above method embodiment, and its implementation principle and technical effects are similar, and will not be described herein.
In one embodiment, an access network device is provided, and fig. 9 is a block diagram of the main hardware configuration of the access network device. As shown in fig. 9, the access network device includes a bus to which a processor, a memory, an external memory, a transceiver, and the like are connected. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The computer program is executed by a processor to implement a data transmission method. The external memory may be a Hard Disk (HD). The bus may be connected with an input device for inputting various information, a display device for displaying various information, and an access network device clock. In addition, the transceiver may be a plurality of elements, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
It will be appreciated by those skilled in the art that the structure shown in fig. 9 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the access network device to which the present application is applied, and that a particular access network device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, an access network device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data;
when the preset adjustment condition is met, judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
and sending the dynamically adjusted mapping relation to the terminal.
In one embodiment, the processor when executing the computer program further performs the steps of:
Receiving parameters of service data; the parameters of the service data comprise service data types, and the service data comprise at least one QoS stream service data;
and determining the wireless data bearing corresponding to the service data type from the default mapping relation, and sending the wireless data bearing corresponding to the service data type to the terminal.
In one embodiment, the preset adjustment conditions include parameters of the arrival statistics period and/or the reception of new service data.
In one embodiment, the processor when executing the computer program further performs the steps of:
judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value or not;
if the parameter value of at least one wireless data bearer is larger than the preset threshold value, qoS parameters of a plurality of QoS stream service data corresponding to the target wireless data bearer are obtained; the target wireless data bearer is a wireless data bearer with a parameter value larger than the preset threshold value;
and comparing the QoS parameters of the QoS flow service data in the target wireless data bearer, and dynamically adjusting the default mapping relation according to the comparison result.
In one embodiment, the processor when executing the computer program further performs the steps of:
acquiring target QoS flow service data in the comparison result, wherein the target QoS flow service data is QoS flow service data with highest QoS parameter requirement;
establishing a new first wireless data bearer for the target QoS flow service data;
and modifying the default mapping relation according to the mapping relation between the service data type corresponding to the target QoS flow service data and the new first wireless data bearer.
In one embodiment, the processor when executing the computer program further performs the steps of:
determining a new service data type according to the parameters of the new service data;
judging whether the new service data type has an established wireless data bearer according to the default mapping relation;
if yes, judging whether the parameter value of the wireless data bearing corresponding to the new service data type is larger than the preset threshold value; if the mapping relation is larger than the first mapping relation, a new second wireless data bearing is established for the new service data type, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearing.
In one embodiment, the processor when executing the computer program further performs the steps of:
if not, determining the wireless data bearing corresponding to the new service data type according to the default mapping relation.
In one embodiment, the processor when executing the computer program further performs the steps of:
if not, establishing the wireless data bearing corresponding to the new service data type according to the default mapping relation.
In one embodiment, the processor when executing the computer program further performs the steps of:
judging whether the load of the wireless data bearer is larger than a first threshold value or not, and judging whether the packet loss rate of the wireless data bearer is larger than a second threshold value or not;
if the load of the wireless data bearer is greater than a first threshold value and the packet loss rate of the wireless data bearer is greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is greater than the preset threshold value;
and if the load of the wireless data bearer is not greater than a first threshold value and/or the packet loss rate of the wireless data bearer is not greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is not greater than the preset threshold value.
In one embodiment, a readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data;
when the preset adjustment condition is met, judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
and sending the dynamically adjusted mapping relation to the terminal.
In one embodiment, the computer program when executed by the processor further performs the steps of:
receiving parameters of service data; the parameters of the service data comprise service data types, and the service data comprise at least one QoS stream service data;
and determining the wireless data bearing corresponding to the service data type from the default mapping relation, and sending the wireless data bearing corresponding to the service data type to the terminal.
In one embodiment, the preset adjustment conditions include parameters of the arrival statistics period and/or the reception of new service data.
In one embodiment, the computer program when executed by the processor further performs the steps of:
judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value or not;
if the parameter value of at least one wireless data bearer is larger than the preset threshold value, qoS parameters of a plurality of QoS stream service data corresponding to the target wireless data bearer are obtained; the target wireless data bearer is a wireless data bearer with a parameter value larger than the preset threshold value;
and comparing the QoS parameters of the QoS flow service data in the target wireless data bearer, and dynamically adjusting the default mapping relation according to the comparison result.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring target QoS flow service data in the comparison result, wherein the target QoS flow service data is QoS flow service data with highest QoS parameter requirement;
establishing a new first wireless data bearer for the target QoS flow service data;
and modifying the default mapping relation according to the mapping relation between the service data type corresponding to the target QoS flow service data and the new first wireless data bearer.
In one embodiment, the computer program when executed by the processor further performs the steps of:
determining a new service data type according to the parameters of the new service data;
judging whether the new service data type has an established wireless data bearer according to the default mapping relation;
if yes, judging whether the parameter value of the wireless data bearing corresponding to the new service data type is larger than the preset threshold value; if the mapping relation is larger than the first mapping relation, a new second wireless data bearing is established for the new service data type, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearing.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if not, determining the wireless data bearing corresponding to the new service data type according to the default mapping relation.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if not, establishing the wireless data bearing corresponding to the new service data type according to the default mapping relation.
In one embodiment, the computer program when executed by the processor further performs the steps of:
judging whether the load of the wireless data bearer is larger than a first threshold value or not, and judging whether the packet loss rate of the wireless data bearer is larger than a second threshold value or not;
if the load of the wireless data bearer is greater than a first threshold value and the packet loss rate of the wireless data bearer is greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is greater than the preset threshold value;
and if the load of the wireless data bearer is not greater than a first threshold value and/or the packet loss rate of the wireless data bearer is not greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is not greater than the preset threshold value.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A method of data transmission, the method comprising:
detecting whether current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data; the preset adjustment conditions comprise parameters of reaching a statistical period and/or receiving new service data;
when the preset adjustment condition is met, judging whether a parameter value of a wireless data bearer in a default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to a judging result, wherein the default mapping relation comprises a mapping relation between a service data type and the wireless data bearer;
Transmitting the dynamically adjusted mapping relation to a terminal;
when the preset adjustment condition is that the statistical period is reached, the step of judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value, and dynamically adjusting the default mapping relation according to the judgment result comprises the following steps:
judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value or not;
if the parameter value of at least one wireless data bearer is larger than the preset threshold value, qoS parameters of a plurality of QoS stream service data corresponding to the target wireless data bearer are obtained; the target wireless data bearer is a wireless data bearer with a parameter value larger than the preset threshold value;
and comparing the QoS parameters of each QoS flow service data in the target wireless data bearer, and dynamically adjusting the default mapping relation according to the comparison result.
2. The method of claim 1, wherein prior to said detecting whether the current traffic data meets a preset adjustment condition, the method further comprises:
receiving parameters of service data; the parameters of the service data comprise service data types, and the service data comprise at least one QoS stream service data;
And determining the wireless data bearing corresponding to the service data type from the default mapping relation, and sending the wireless data bearing corresponding to the service data type to a terminal.
3. The method of claim 1, wherein dynamically adjusting the default mapping according to the comparison result comprises:
acquiring target QoS flow service data in the comparison result, wherein the target QoS flow service data is QoS flow service data with highest QoS parameter requirement;
establishing a new first wireless data bearer for the target QoS flow service data;
and modifying the default mapping relation according to the mapping relation between the service data type corresponding to the target QoS flow service data and the new first wireless data bearer.
4. The method according to claim 1, wherein when the preset adjustment condition is a parameter of receiving new service data, the determining whether the parameter value of the radio data bearer in the default mapping relationship is greater than a preset threshold, and dynamically adjusting the default mapping relationship according to the determination result, includes:
determining a new service data type according to the parameters of the new service data;
Judging whether the new service data type has an established wireless data bearer according to the default mapping relation;
if yes, judging whether the parameter value of the wireless data bearer corresponding to the new service data type is larger than the preset threshold value; if the mapping relation is larger than the default mapping relation, a new second wireless data bearing is established for the new service data type, and the default mapping relation is modified according to the mapping relation between the new service data type and the new second wireless data bearing.
5. The method according to claim 4, wherein the method further comprises:
and if the new service data type is not greater than the default mapping relation, determining the wireless data bearing corresponding to the new service data type.
6. The method according to claim 4 or 5, characterized in that the method further comprises:
if not, establishing the wireless data bearing corresponding to the new service data type according to the default mapping relation.
7. The method of claim 4, wherein the parameter values of the radio data bearer include a load of the radio data bearer and a packet loss rate of the radio data bearer, the preset threshold includes a first threshold and a second threshold, and the determining whether the parameter value of the radio data bearer corresponding to the new service data type is greater than the preset threshold includes:
Judging whether the load of the wireless data bearer is larger than a first threshold value or not, and judging whether the packet loss rate of the wireless data bearer is larger than a second threshold value or not;
if the load of the wireless data bearer is greater than a first threshold value and the packet loss rate of the wireless data bearer is greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is greater than the preset threshold value;
and if the load of the wireless data bearer is not greater than a first threshold value and/or the packet loss rate of the wireless data bearer is not greater than a second threshold value, determining that the parameter value of the wireless data bearer corresponding to the new service data type is not greater than the preset threshold value.
8. A data transmission apparatus, the apparatus comprising:
the detection module is used for detecting whether the current service data meets preset adjustment conditions or not; the current service data comprises at least one QoS stream service data; the preset adjustment conditions comprise parameters of reaching a statistical period and/or receiving new service data;
the adjustment module is used for judging whether the parameter value of the wireless data bearer in the default mapping relation is larger than a preset threshold value or not when the preset adjustment condition is met, and dynamically adjusting the default mapping relation according to a judgment result, wherein the default mapping relation comprises the mapping relation between the service data type and the wireless data bearer;
The sending module is used for sending the dynamically adjusted mapping relation to the terminal;
when the preset adjustment condition is that a statistical period is reached, the adjustment module includes:
the judging unit is used for judging whether the parameter value of each wireless data bearer in the default mapping relation is larger than a preset threshold value or not;
an obtaining unit, configured to obtain QoS parameters of a plurality of QoS flow service data corresponding to the target wireless data bearer if the parameter value of at least one wireless data bearer is greater than the preset threshold; the target wireless data bearer is a wireless data bearer with a parameter value larger than the preset threshold value;
and the comparison unit is used for comparing the QoS parameters of each QoS flow service data in the target wireless data bearer and dynamically adjusting the default mapping relation according to the comparison result.
9. An access network device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
10. A readable storage medium having stored thereon a computer program, which when executed by a processor realizes the steps of the method according to any of claims 1 to 7.
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