CN115734281A - Data transmission method, device and equipment - Google Patents
Data transmission method, device and equipment Download PDFInfo
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Abstract
The invention provides a data transmission method, a data transmission device and data transmission equipment, and relates to the technical field of communication. The method is applied to a sink node in a heterogeneous network system, the sink node is connected with a network side node of a cellular network and is connected with a terminal through a short-distance communication network, and the method comprises the following steps: acquiring target service data sent by a terminal through a short-distance communication network; acquiring a target QoS strategy corresponding to a target service bearing identifier of the target service data according to the corresponding relation between the service bearing identifier of the service data and the QoS strategy; and sending the target service data to a network side node of a cellular network according to the target QoS strategy. The embodiment of the invention can provide service-based deterministic service guarantee based on different service scenes in a heterogeneous network (the short-distance communication network and the cellular communication network are fused), namely, the service characteristics and the user requirements of different services can be met.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, and device.
Background
Quality of Service (QoS) architectures proposed by the existing 3GPP or non-3GPP technical solutions mainly implement QoS policies and resource allocation scheduling in a physical layer and a link layer of a communication protocol stack, and configure resource allocation policies for Service flows of different priorities by using a queuing technique through identifiers such as priority (per packet) and rate. However, the configuration parameter settings of the underlying interface for different services of the same terminal are convergent, and cannot simultaneously satisfy the service characteristics and user requirements of different scenes, nor distinguish services executed by different flows.
Disclosure of Invention
The invention aims to provide a data transmission method, a data transmission device and data transmission equipment, which aim to solve the problem that the existing QoS mechanism is convergent in the setting of allocation parameters of different services of the same terminal and cannot simultaneously meet the service characteristics and user requirements of different scenes.
In order to achieve the above object, an embodiment of the present invention provides a data processing method applied to a sink node in a heterogeneous network system, where the sink node is connected to a network side node of a cellular network and is connected to a terminal through a short-range communication network, and the method includes:
acquiring target service data sent by a terminal through a short-distance communication network;
acquiring a target QoS strategy corresponding to a target service bearing identifier of the target service data according to the corresponding relation between the service bearing identifier of the service data and the QoS strategy;
and sending the target service data to a network side node of a cellular network according to the target QoS strategy.
Optionally, the obtaining of the target QoS policy corresponding to the target service data includes:
acquiring a target QoS strategy corresponding to the target service data according to a QoS management entity in a basic service layer of the sink node;
the sink node further comprises an access layer, and the basic service layer is located above the access layer.
Optionally, sending the target service data to a network side node of a cellular network according to the target QoS policy includes:
mapping the target service data to a target QoS flow logic interface corresponding to the target QoS strategy;
and sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
Optionally, transmission parameters corresponding to different logical interfaces are different, where the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
Optionally, the short-range communication network includes a first interface and a second interface, where the first interface is connected to the terminal, and the second interface is connected to the aggregation node; the method further comprises the following steps:
adjusting at least one of a first interface QoS parameter value and a second QoS parameter value according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS streams sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rate GBR QoS streams received by a single aggregation node.
Optionally, the adjusting the QoS parameter value of the first interface according to the resource configuration information of the network slice includes:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
Optionally, the short-range communication network is a starflash SparkLink short-range communication network.
An embodiment of the present invention further provides a data transmission apparatus, which is applied to a sink node in a heterogeneous network system, where the sink node is connected to a network side node of a cellular network and is connected to a terminal through a short-distance communication network, and the apparatus includes:
the first acquisition module is used for acquiring target service data sent by a terminal through a short-distance communication network;
a second obtaining module, configured to obtain, according to a correspondence between a service bearer identifier of service data and a quality of service QoS policy, a target QoS policy corresponding to a target service bearer identifier of the target service data;
and the first transmission module is used for transmitting the target service data to a network side node of a cellular network according to the target QoS strategy.
Optionally, the second obtaining module is configured to obtain, according to a QoS management entity in a basic service layer of the aggregation node, a target QoS policy corresponding to the target service data;
the sink node further comprises an access layer, and the basic service layer is located above the access layer.
Optionally, the first transmission module comprises:
a first mapping sub-module, configured to map the target service data to a target QoS flow logical interface corresponding to the target QoS policy;
and the first transmission resource module is used for sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
Optionally, transmission parameters corresponding to different logical interfaces are different, where the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
Optionally, the short-range communication network includes a first interface and a second interface, where the first interface is connected to the terminal, and the second interface is connected to the sink node; the device further comprises:
the adjusting module is used for adjusting at least one of the first interface QoS parameter value and the second QoS parameter value according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS flows sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rates GBR QoS flows received by a single aggregation node.
Optionally, the adjusting module is configured to:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
Optionally, the short-range communication network is a starflash SparkLink short-range communication network.
An embodiment of the present invention further provides a data transmission device, including: a transceiver and a processor;
the transceiver is used for acquiring target service data sent by the terminal through a short-distance communication network;
the processor is used for acquiring a target QoS strategy corresponding to a target service bearing identifier of the target service data according to the corresponding relation between the service bearing identifier of the service data and the QoS strategy;
the transceiver is used for sending the target service data to a network side node of a cellular network according to the target QoS strategy.
An embodiment of the present invention further provides a data transmission device, including: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; wherein the processor, when executing the program or instructions, implements the steps in the data transmission method as described above.
Embodiments of the present invention further provide a readable storage medium, on which a program or instructions are stored, where the program or instructions, when executed by a processor, implement the steps in the data transmission method as described above.
The technical scheme of the invention has the following beneficial effects:
in the embodiment of the invention, the target service data sent by the terminal is obtained through the short-distance communication network, the service characteristics, the user requirements and the like of different services can be identified according to the service bearing identification of the service data, the service characteristics, the user requirements and the like are mapped to the corresponding target QoS strategy, and the target service data is sent to the network side node of the cellular network according to the target QoS strategy, so that the service-based deterministic service guarantee can be provided in the heterogeneous network (the short-distance communication network and the cellular communication network are fused) based on different service scenes, namely the service characteristics and the user requirements of different services can be met.
Drawings
Fig. 1 is a schematic flow chart of a data transmission method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a short-range communication network according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a heterogeneous network system according to an embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of a heterogeneous network system according to an embodiment of the present invention;
FIG. 5 is a block diagram of a data transmission apparatus according to an embodiment of the present invention;
fig. 6 is one of the block diagrams of the structure of the data transmission device according to the embodiment of the present invention;
fig. 7 is a second block diagram of a data transmission apparatus according to an embodiment of the invention.
Detailed Description
To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Additionally, the terms "system" and "network" are often used interchangeably herein.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also be determined from a and/or other information.
In order that those skilled in the art will be better able to understand the embodiments of the present invention, the following description is first made.
Quality of Service (QoS) is to provide better Service capability for specified network communication, and to improve the Service Quality by ensuring transmission bandwidth, reducing transmission delay, reducing packet loss rate of data, and delay jitter in the network.
With the development of ubiquitous intelligence, both cellular communication technologies such as 5G and the like and short-distance communication technologies such as industrial wireless and the like, the evolution and the development of characteristics of deterministic quality of service guarantee services are towards, so as to meet new requirements provided by emerging services in smart parks and smart factories. In the aspect of cellular network, 5G network slices divide network hierarchies, template instances, user identifiers and the like related to a physical network on an end-to-end level, so as to achieve the purpose of traffic grouping, isolate other tenants and realize resource allocation on a non-service level. In the aspect of short-distance networks, the QOS architecture of the existing bluetooth, 5G and other networks is a universal QOS policy implemented in an access layer of a communication protocol stack, and performs QOS processing on a service packet by identifying service information of the received service packet and according to a pre-configuration policy and the service information of the access layer.
The embodiment of the invention provides a data transmission method, which is applied to a sink node in a heterogeneous network system, wherein the sink node is connected with a network side node of a cellular network and is connected with a terminal through a short-distance communication network, and the method comprises the following steps:
step 101: and acquiring target service data sent by the terminal through a short-distance communication network.
The heterogeneous network in the embodiment of the invention is the integration of a short-distance communication network and a 5G cellular communication network. The short-range communication network may specifically be a starflash SparkLink short-range communication network. The spark Link short-distance communication network introduces a channel coding and decoding technology Polar and RS, random interference and burst interference are optimized, and high-reliability transmission in a complex electromagnetic environment is achieved. As shown in fig. 2, the short-range communication network may include a SparkLink access layer, a base service layer, and a base application layer. Wherein, a QoS management entity is arranged in the basic service layer.
The target service data includes service data sent by at least one terminal, and the service data may include network status, service information, traffic usage information, and the like.
Step 102: and acquiring a target QoS strategy corresponding to the target service bearing identifier of the target service data according to the corresponding relation between the service bearing identifier of the service data and the QoS strategy.
In this step, the service data may include a service bearer identifier, where the service bearer identifier may indicate a type of the service, and different types of services correspond to different QoS policies, and the QoS policies may indicate at least one of a transmission bandwidth, a transmission delay, a block error rate BLER, a number of repeated transceiving times, frame synchronization information, and transmission queue information.
Here, different QoS policies are configured for different types of traffic, and different deterministic service guarantees can be provided for different traffic.
Step 103: and sending the target service data to a network side node of a cellular network according to the target QoS strategy.
In the embodiment of the invention, a terminal node (T node) sends service data to a sink node (G node) through a short-distance communication network, the sink node is used as a routing or bridging node to establish a transmission channel with a 5G air interface, the service data is sent to a 5G base station through a 5G cellular network, and the 5G base station forwards the service data to a 5G core network (a key network element can be edge UPF). Wherein, the T link of a communication domain is defined as a resource used for the T node of the communication domain to send or the G node to receive physical layer signals, physical layer control information and physical layer data information; on one carrier used by a G node, a resource set consisting of resources for transmitting synchronization signals, broadcast information, G link control information, and resources that the G node can schedule and configure is called a communication domain of the G node, and the G node is called a G node of the communication domain.
In the embodiment of the invention, the target service data sent by the terminal is obtained through the short-distance communication network, the service characteristics, the user requirements and the like of different services can be identified according to the service bearing identification of the service data, the service characteristics, the user requirements and the like are mapped to the corresponding target QoS strategy, and the target service data is sent to the network side node of the cellular network according to the target QoS strategy, so that the service-based deterministic service guarantee can be provided in a converged network (the short-distance communication network and the cellular communication network are converged) based on different service scenes, namely the service characteristics and the user requirements of different services can be met.
Optionally, the obtaining of the target QoS policy corresponding to the target service data includes:
acquiring a target QoS strategy corresponding to the target service data according to a QoS management entity in a basic service layer of the sink node;
the sink node further comprises an access layer, and the basic service layer is located above the access layer.
As shown in fig. 3, in the embodiment of the present invention, management entities such as a 5G convergence service, a QOS management, a measurement management, and the like (in some embodiments, a modular configuration file profile may be defined, where the profile is an environment variable setting that may be run after a device is powered on, and when the device is powered on, the file is executed, and a shell setting is collected from a configuration file of a file directory), are defined in a basic service layer above an access layer, and a system implements field-level data cloud application and management of a short-distance communication domain terminal node by a 5G network mainly through a high-layer protocol adaptation mode.
The QoS management module defined in the basic service layer defines a QOS strategy and a high-order resource allocation method, different design methods such as repeated receiving and transmitting, bandwidth reservation, frame synchronization, queue technology and the like can be provided according to the requirements of specific products of specific scenes, short-distance communication products for specific industries do not need to realize all QOS technical specifications, and excessive resource management algorithms are prevented from being loaded at one time on an access layer. For the service types of the common contents, the reusability of the system logic interface is enhanced, the service data of the same type are converged and transferred through the logic interface, the flow control is realized, the scheduling efficiency is improved, and the system compatibility among the short-distance communication equipment facing to a specific industry can be more easily maintained. In addition, different application manufacturers have different understandings on the services of the internet of things, the service logic of QOS management can be flexibly optimized in a configuration file according to development requirements, and the default QOS resource allocation mode of the system is modified.
Optionally, sending the target service data to a network side node of a cellular network according to the target QoS policy includes:
mapping the target service data to a target QoS flow logic interface corresponding to the target QoS policy;
and sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
Optionally, transmission parameters corresponding to different logical interfaces are different, where the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
In the embodiment of the invention, the target service data is mapped to a target QoS flow logic interface corresponding to the target QoS strategy; and sending the target service data to a network side node of the cellular network through the target QoS flow logical interface, so that different services are provided with deterministic service guarantee through different logical interfaces.
Optionally, the short-range communication network includes a first interface (T interface) and a second interface (G interface), where the first interface (T interface) is connected to the terminal, and the second interface (G interface) is connected to the aggregation node; the method further comprises the following steps:
adjusting at least one of a first interface QoS parameter value and a second QoS parameter value according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS streams sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rate GBR QoS streams received by a single aggregation node.
Further, the adjusting the QoS parameter value of the first interface according to the resource configuration information of the network slice includes:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
In the embodiment of the present invention, the resource configuration of the network slice in the 5G interface implements QOS reverse negotiation with the T interface and the G interface through the arbitration unit, and the parameters participating in the negotiation are network statistical indicators and states related to the slice, which may specifically include the first interface parameter value and the second interface parameter value.
Specifically, the QoS parameters of the T interface and the G interface can be dynamically adjusted in a reverse direction by a correction algorithm, and the reserved resources of the logical link are dynamically adjusted or reestablished. And a correction algorithm and an interactive flow are added on the basis of a channel resource allocation strategy to realize the enhancement of the pipeline capacity of the multi-stage communication, and the unnecessary channel expense is reduced.
The data transmission method according to the embodiment of the present invention is described below with reference to fig. 4.
As shown in fig. 4, the method of the embodiment of the present invention includes:
1. and the terminal node is used as a service request party to send service data.
1.1, the terminal node initializes the QOS parameters of the 5G fusion module and the QoS management module of the basic service layer through a management entity of the high-layer protocol (in some embodiments, a modular high-layer protocol or a configuration file). The QoS parameters include, but are not limited to, service type, service identifier, burst transmission data volume, packet loss rate/packet error rate, etc. of bidirectional matching between short range and cellular network, and configuration parameters specifically designed such as traffic load, link redundancy, transmission delay, etc.
1.2, the terminal (T node) triggers and establishes a transmission channel. Different terminals (T) or different applications under the same terminal (T node) adopt different communication interfaces (T interfaces) for data transmission. The reserved bandwidth and default time delay of different T interfaces are different according to the service characteristic requirements.
2. The aggregation node (G node) is used as a service receiver to establish a transmission channel with the terminal node (T node).
And 2.1, all the terminal nodes are converged under 1 or more G nodes, and the unified convergence of field level data is realized through 1 or more communication interfaces (G interfaces) so as to realize data convergence and data transfer.
2.2, the sink node (G node) packages the data forwarded by the T node into an IP message through a TCP/IP layer, and further processes the IP message on a basic service layer management entity.
And 2.3, the basic service layer QoS management module obtains information such as the rate and priority of IP transmission used by an application layer or an access layer, and meets the requirements of a QoS model based on flow/pipeline/path/load.
3. The aggregation node (G node) is used as a routing/bridging node to establish a transmission channel with the 5G air interface.
And 3.1, classifying the data Flow by the sink node (G node) through the service bearing identification parameter, and mapping the data to different QoS Flow (QoS Flow) logical interfaces. A QOS flow is the smallest scheduling/processing granularity, and each flow is associated with a series of parameter sets for short-range converged communication with the cellular network.
3.2, data enters a high-level protocol of the G node through a wireless link of the G node and an IP/Non-IP link channel, according to a configured QoS mechanism, including but not limited to a logic interface designed for common content, such as low power consumption QOS flow, large bandwidth QOS flow, low time delay QOS flow and the like,
different mapping logic interfaces have special optimization to bandwidth, delay, BLER, etc. for service characteristics, including but not limited to the following services:
aiming at the low power consumption positioning QOS flow, configuring smaller HARQ parameters to reduce the number of times of data retransmission and acquiring the shorter time for the terminal to enter a connection state so as to reduce the power consumption;
reserving additional bandwidth resources aiming at the screen projection service QOS flow, carrying out flow management on data flows with different labels in the data forwarding process, limiting various service flows to specific bandwidths, and discarding unqualified flows or putting the unqualified flows into a queue for caching when the service flows exceed the rated bandwidths;
aiming at the QOS flow of the low-delay active noise reduction service, shorter wireless frame signaling indication and more accurate switching time are configured, and faster data transmission is obtained by reducing signaling overhead, fast frame synchronization, queue technology and other modes.
And 3.3, placing the data messages corresponding to the QOS flow into a queue for caching, adopting the priority parameters to mark the value of the preemption priority, adopting a scheduling algorithm to arrange the forwarding sequence of the messages, and distinguishing the characteristics of user resource preemption and preemption in the modes of tokens, ARP parameters and the like.
4. And the 5G air interface, the T interface and the G interface perform reverse negotiation QOS management.
The resource allocation of the network slice in the 4.1 and 5G interfaces realizes the QOS reverse negotiation with the T interface and the G interface through the arbitration unit. The parameters participating in the negotiation are slice-related network statistical indexes and states, including T-AMBR and G-AMBR, where the parameter T-AMBR represents the maximum value of the sum of all QoS flow bit rates issued by a single T node, and the parameter G-AMBR represents the maximum value of the sum of all GBR QoS flow bit rates within a single G node.
And 4.2, reversely and dynamically adjusting the QoS parameters of the T interface and the G interface through a correction algorithm, and dynamically adjusting or reestablishing the reserved resources of the logical link. And a correction algorithm and an interactive flow are added on the basis of a channel resource allocation strategy to realize the enhancement of the pipeline capacity of the multi-stage communication, and the unnecessary channel expense is reduced. Including but not limited to the following:
1) When the 5G slice corresponding to the service is not allocated with enough channel resources, the arbitration unit reversely adjusts the excessive channel resources reserved by the T interface through a correction algorithm, and ensures that the bandwidth reserved by the slice is not less than the bandwidth of the data stream of the T interface.
2) The G interface can reserve certain bandwidth in the data transmission process, guarantee the bandwidth level and the maximum end-end transmission delay, and avoid packet loss caused by buffer overflow.
3) And when the sum of the bit flow loads of various data streams of the field level is greater than the bandwidth of the 5G interface, accepting or rejecting the resource request of a certain T node according to the use condition of the current bandwidth.
5. The 5G slice forwards data from a sink node (G node) to a 5G core network according to a QOS rule, and the QOS requirement of end-to-end service guarantee of industry application is met.
In the embodiment of the invention, a light deployment method (a QoS management entity module and the like are arranged on a basic service layer) is adopted, so that the problem that short-distance communication products facing a specific industry are excessively loaded at an access layer at one time is avoided, the industry terminals facing different scenes can provide service-based deterministic service guarantee, the problems of convergence of QoS strategy parameters of the access layer and single resource allocation scheduling capability are solved, and the requirements of application differentiated services of vertical industries such as bandwidth, delay, packet loss and jitter can be met.
As shown in fig. 5, an embodiment of the present invention further provides a data transmission apparatus 500, which is applied to a sink node in a heterogeneous network system, where the sink node is connected to a network side node of a cellular network and is connected to a terminal through a short-range communication network, and the apparatus includes:
a first obtaining module 501, configured to obtain target service data sent by a terminal through a short-range communication network;
a second obtaining module 502, configured to obtain, according to a correspondence between a service bearer identifier of service data and a QoS policy, a target QoS policy corresponding to a target service bearer identifier of the target service data;
a first transmission module 503, configured to send the target service data to a network side node of a cellular network according to the target QoS policy.
Optionally, the second obtaining module is configured to obtain, according to a QoS management entity in a basic service layer of the aggregation node, a target QoS policy corresponding to the target service data;
the sink node further comprises an access layer, and the basic service layer is located above the access layer.
Optionally, the first transmission module comprises:
a first mapping sub-module, configured to map the target service data to a target QoS flow logical interface corresponding to the target QoS policy;
and the first transmission resource module is used for sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
Optionally, transmission parameters corresponding to different logical interfaces are different, where the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
Optionally, the short-range communication network includes a first interface and a second interface, where the first interface is connected to the terminal, and the second interface is connected to the sink node; the device further comprises:
the adjusting module is used for adjusting at least one of the first interface QoS parameter value and the second QoS parameter value according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS streams sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rate GBR QoS streams received by a single aggregation node.
Optionally, the adjusting module is configured to:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
Optionally, the short-range communication network is a starflash SparkLink short-range communication network.
The data transmission device can implement all implementation manners in the above data transmission method embodiments, and in order to avoid repetition, details are not described here again.
As shown in fig. 6, an embodiment of the present invention further provides a data transmission device 600, including: a transceiver 620 and a processor 610;
the transceiver 620 is configured to acquire target service data sent by a terminal through a short-range communication network;
the processor 610 is configured to obtain a target QoS policy corresponding to a target service bearer identifier of the target service data according to a correspondence between a service bearer identifier of service data and a QoS policy;
the transceiver 620 is configured to send the target service data to a network side node of a cellular network according to the target QoS policy.
Optionally, the processor 610 is configured to obtain a target QoS policy corresponding to the target service data according to a QoS management entity in a basic service layer of the sink node;
the sink node further comprises an access layer, and the basic service layer is located above the access layer.
Optionally, the transceiver 620 is configured to:
mapping the target service data to a target QoS flow logic interface corresponding to the target QoS strategy;
and sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
Optionally, transmission parameters corresponding to different logical interfaces are different, where the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
Optionally, the short-range communication network includes a first interface and a second interface, where the first interface is connected to the terminal, and the second interface is connected to the sink node; the processor 610 is further configured to:
adjusting at least one of a first interface QoS parameter value and a second QoS parameter value according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS flows sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rates GBR QoS flows received by a single aggregation node.
Optionally, the processor 610 is configured to:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
Optionally, the short-range communication network is a starflash SparkLink short-range communication network.
The data transmission device can implement all implementation manners in the above data transmission method embodiment, and details are not described herein to avoid repetition.
An embodiment of the present invention provides a data transmission device, as shown in fig. 7, including a transceiver 710, a processor 700, a memory 720, and a program or an instruction stored on the memory 720 and executable on the processor 700; the processor 700, when executing the program or instructions, implements the steps of the data transmission method described above.
The transceiver 710 is used for receiving and transmitting data under the control of the processor 700.
Wherein in fig. 7 the bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented by processor 700, and various circuits, represented by memory 720, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
The embodiment of the present invention further provides a readable storage medium, on which a program or an instruction is stored, where the program or the instruction is executed by a processor to implement the steps in the data transmission method described above, and the same technical effect can be achieved, and details are not repeated here to avoid repetition.
The processor is the processor in the data transmission device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It is further noted that the terminals described in this specification include, but are not limited to, smart phones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
In embodiments of the present invention, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Similarly, operational data may be identified within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of hardware technology, a module implemented in software may build a corresponding hardware circuit to implement corresponding functions, without considering the cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
The exemplary embodiments described above are described with reference to the drawings, and many different forms and embodiments of the invention may be made without departing from the spirit and teaching of the invention, therefore, the invention is not to be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of elements may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values, when stated, includes the upper and lower limits of the range, and any subranges therebetween.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A data transmission method is applied to a sink node in a heterogeneous network system, wherein the sink node is connected with a network side node of a cellular network and is connected with a terminal through a short-distance communication network, and the method comprises the following steps:
acquiring target service data sent by a terminal through a short-distance communication network;
acquiring a target QoS strategy corresponding to a target service bearing identifier of the target service data according to the corresponding relation between the service bearing identifier of the service data and the QoS strategy;
and sending the target service data to a network side node of a cellular network according to the target QoS strategy.
2. The method of claim 1, wherein obtaining the target QoS policy corresponding to the target service data comprises:
acquiring a target QoS strategy corresponding to the target service data according to a QoS management entity in a basic service layer of the sink node;
the sink node also comprises an access layer, and the basic service layer is positioned above the access layer.
3. The method of claim 1, wherein sending the target traffic data to a network-side node of a cellular network according to the target QoS policy comprises:
mapping the target service data to a target QoS flow logic interface corresponding to the target QoS strategy;
and sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
4. The method of claim 3, wherein transmission parameters corresponding to different logical interfaces are different, and the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
5. The method of claim 1, wherein the short-range communication network comprises a first interface and a second interface, wherein the first interface is connected to the terminal, and wherein the second interface is connected to the sink node; the method further comprises the following steps:
adjusting at least one of a first interface QoS parameter value and a second QoS parameter value according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS flows sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rates GBR QoS flows received by a single aggregation node.
6. The method of claim 5, wherein the adjusting the first interface QoS parameter value according to the resource configuration information of the network slice comprises:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
7. The method of claim 1, wherein the short-range communication network is a spark link short-range communication network.
8. A data transmission apparatus, applied to a sink node in a heterogeneous network system, the sink node being connected to a network-side node of a cellular network and connected to a terminal through a short-range communication network, the apparatus comprising:
the first acquisition module is used for acquiring target service data sent by a terminal through a short-distance communication network;
a second obtaining module, configured to obtain, according to a correspondence between a service bearer identifier of service data and a quality of service QoS policy, a target QoS policy corresponding to a target service bearer identifier of the target service data;
and the first transmission module is used for transmitting the target service data to a network side node of a cellular network according to the target QoS strategy.
9. The apparatus according to claim 8, wherein the second obtaining module is configured to obtain a target QoS policy corresponding to the target service data according to a QoS management entity in a basic service layer of the sink node;
the sink node further comprises an access layer, and the basic service layer is located above the access layer.
10. The apparatus of claim 8, wherein the first transmission module comprises:
a first mapping sub-module, configured to map the target service data to a target QoS flow logical interface corresponding to the target QoS policy;
and the first transmission resource module is used for sending the target service data to a network side node of a cellular network through the target QoS flow logic interface.
11. The apparatus of claim 10, wherein different logical interfaces have different transmission parameters, and wherein the transmission parameters include at least one of:
a transmission bandwidth;
a transmission delay;
repeating the receiving and sending times;
block error rate information;
frame synchronization information;
and transmitting the queue.
12. The apparatus of claim 8, wherein the short-range communication network comprises a first interface and a second interface, wherein the first interface is connected to the terminal, and wherein the second interface is connected to the sink node; the device further comprises:
the adjusting module is used for adjusting at least one of the QoS parameter value of the first interface and the QoS parameter value of the second interface according to the resource configuration information of the network slice;
wherein the first interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all QoS streams sent by a single terminal, and the second interface QoS parameter value is used for indicating the maximum value of the bit rate sum of all guaranteed bit rate GBR QoS streams received by a single aggregation node.
13. The apparatus of claim 12, wherein the adjustment module is configured to:
reducing the first interface parameter value under the condition that the resource configuration information of the network slice indicates that the channel resource number is smaller than a preset threshold value;
or, in the case that the bandwidth indicated by the resource configuration information of the network slice is smaller than the bandwidth corresponding to the target service data, reducing the first interface parameter value.
14. The apparatus of claim 8, wherein the short-range communication network is a spark link short-range communication network.
15. A data transmission device, comprising: a transceiver and a processor;
the transceiver is used for acquiring target service data sent by the terminal through a short-distance communication network;
the processor is used for acquiring a target QoS strategy corresponding to a target service bearing identifier of the target service data according to the corresponding relation between the service bearing identifier of the service data and the QoS strategy;
the transceiver is used for sending the target service data to a network side node of a cellular network according to the target QoS strategy.
16. A data transmission device comprising: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; characterised in that the processor, when executing the program or instructions, carries out the steps of the data transmission method according to any one of claims 1 to 7.
17. A readable storage medium on which a program or instructions are stored, wherein the program or instructions, when executed by a processor, implement the steps in the data transmission method according to any one of claims 1 to 7.
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