CN108811140B - Data service transmission method and system - Google Patents
Data service transmission method and system Download PDFInfo
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- CN108811140B CN108811140B CN201810317758.6A CN201810317758A CN108811140B CN 108811140 B CN108811140 B CN 108811140B CN 201810317758 A CN201810317758 A CN 201810317758A CN 108811140 B CN108811140 B CN 108811140B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
Abstract
The embodiment of the invention provides a data service transmission method and a system, wherein the method comprises the following steps: when a logic channel is configured, acquiring an application scene of current data service transmission; and determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme. According to the data service transmission method and system provided by the embodiment of the invention, different resource scheduling configuration schemes are completed according to different scenes of the data transmission service, so that the performance requirements of various data services are met.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a data service transmission method and a data service transmission system.
Background
In recent years, as the traffic volume of mobile data services increases, the 5G NR (New Radio) technology has also been rapidly developed. Typical scenarios of NR are enhanced mobile broadband (eMBB), large-scale internet of things (mtc), high reliability and low latency (URLLC), where the main technical requirements of URLLC are ultra-high reliability and ultra-low latency, and low latency requires reducing retransmission times and makes the priority of URLLC service higher than other services. For the UE, the physical PHY layer of the UE performs uplink service scheduling by configuring an uplink grant (UL grant).
Fig. 1 is a schematic diagram of a data service transmission processing procedure provided in the prior art, and as shown in fig. 1, data services (including URLLC services, eMBB services, and the like) are distributed by a packet data convergence protocol PDCP layer to a radio link layer control protocol RLC layer, then transmitted through a Logical CHannel (LCH), and finally sent to an MAC layer for processing, and encapsulated in a transport block TB for data transmission, where data of different LCHs are distinguished and placed in the same TB for transmission. In the existing LTE version, different types of services are not distinguished clearly, so that the priority is judged according to the data rate by using a policy routing PBR, and the service with high priority preferentially occupies a channel for transmission; however, in 5G NR, because URLLC has a higher delay requirement than services such as eMBB, a Transmission Time Interval (TTI) and a SubCarrier Interval (SCS) are introduced, UL Grant satisfying the delay requirement of URLLC service is configured for LCH according to TTI and SCS, and Grant type is introduced at the same Time, and data service can be transmitted only when the UL Grant of current Grant type satisfies the delay requirement of URLLC service. In order to realize URLLC service transmission, a Grant free scheduling technique is introduced into the UL Grant of NR. The Grant free technique is to allocate resources in advance, and when a UE has a data packet to be sent, the UE can directly transmit the data packet on the resources allocated in advance without waiting for a UL Grant corresponding to a service. Then, for different transmission services of NR, application scenarios are different due to respective characteristics of the transmission services, and therefore, there is a difference in transmission modes that can be used in different scenarios. To determine whether a certain transmission scheme can be applied to a certain data service, the configuration of its UL grant needs to be restricted.
However, the existing data transmission method does not take the UL grant configuration into consideration comprehensively, and it is difficult to meet the performance requirements of various data services, so a data service transmission method is urgently needed to meet the performance requirements of various data services.
Disclosure of Invention
In order to solve the above problems, embodiments of the present invention provide a data service transmission method and system that overcome the above problems or at least partially solve the above problems.
A first aspect of the present invention provides a data service transmission method, including:
when a logic channel is configured, acquiring an application scene of current data service transmission;
and determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme.
A second aspect of the present invention provides a data service transmission system, where the system includes:
the acquisition module is used for acquiring an application scene of current data service transmission when the logic channel is configured;
and the transmission module is used for determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene so as to transmit the current data service according to the channel resource scheduling scheme.
A third aspect of the present invention provides a data service transmission device, including:
a processor, a memory, a communication interface, and a bus; the processor, the memory and the communication interface complete mutual communication through the bus; the memory stores program instructions executable by the processor, and the processor calls the program instructions to perform one of the data traffic transmission methods described above.
A fourth aspect of embodiments of the invention provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above method.
Fifth aspect embodiments of the invention provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the above-described method.
According to the data service transmission method and system provided by the embodiment of the invention, different resource scheduling configuration schemes are completed according to different scenes of the data transmission service, so that the performance requirements of various data services are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a data service transmission process provided by the prior art;
fig. 2 is a flowchart of a data service transmission method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of data service transmission processing of URLLC provided in the embodiment of the present invention when a Grant free type TB is configured;
fig. 4 is a schematic diagram of data service transmission processing of an eMBB according to an embodiment of the present invention when a Grant free type TB is configured and there is an idle Grant free resource;
fig. 5 is a schematic diagram of data service transmission processing of URLLC provided in the embodiment of the present invention when an LAA-type TB is configured;
fig. 6 is a structural diagram of a data service transmission system according to an embodiment of the present invention;
fig. 7 is a block diagram of a data service transmission device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a flowchart of a data service transmission method provided in an embodiment of the present invention, and as shown in fig. 2, the method includes:
s1, acquiring the application scene of the current data service transmission when configuring the logic channel;
s2, according to the type of the application scene, determining a channel resource scheduling scheme corresponding to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme.
It can be understood that, in the prior art, different data service types cannot be configured in a targeted manner in the process of configuring an uplink scheduling grant UL grant in the data service transmission process, so that the performance of the data service cannot meet the standard in some service scenarios.
Aiming at the problems in the prior art, the embodiment of the invention adopts different channel resource scheduling schemes according to the characteristics of the transmission mode and the requirements of different services, so as to achieve the standard reaching of the data service performance in all scenes.
Specifically, an execution main body in the embodiment of the present invention is a radio resource control RRC layer, and may also be any module or medium carrier capable of implementing resource configuration, which is not specifically limited in this embodiment of the present invention.
In S1, the logical channel is a channel formed by transmitting different information types on a physical channel, and represents a content of bearer transmission, and the current data service is a service that needs to be transmitted on the logical channel, and includes different service types and different service requirements corresponding to the different service types, and in 5G, common service types include enhanced mobile broadband eMBB, large-scale internet of things mtc, and high-reliability low-latency URLLC, where main technical requirements of URLLC are ultra-high reliability and ultra-low latency, and low latency requires reducing retransmission times, and makes priority of URLLC service higher than other services.
Further, in the embodiment of the present invention, when configuring the logical channel, an application scenario of current data service transmission is simultaneously obtained, where the application scenario refers to a specific application scenario that may occur in a 5G communication process, for example: NR scenarios and LAA scenarios.
In S2, the channel resource scheduling scheme is substantially different UL grant configuration processes adopted for different application scenario types provided in the embodiment of the present invention, and the channel resource scheduling scheme is generated according to a result of the UL grant configuration, and then the data service is transmitted according to the channel resource scheduling scheme in a transmission process.
It can be understood that the existing UL grant configuration has poor limitation comprehensiveness, and in the embodiment of the present invention, different UL grant configuration schemes are allocated to different application scenarios by considering various specific application scenarios, so that different channel resource scheduling schemes are generated for transmitting different types of data services.
According to the data service transmission method and system provided by the embodiment of the invention, different resource scheduling configuration schemes are completed according to different scenes of the data transmission service, so that the performance requirements of various data services are met.
On the basis of the above-described embodiments,
the determining, according to the type of the application scenario, a channel resource scheduling scheme corresponding to the type of the application scenario specifically includes:
and if the service type of the current data service transmission corresponding to the application scene is a service with high reliability and low time delay, selecting a transmission resource block without authorization scheduling from all available transmission resource blocks as the service for data encapsulation.
It can be understood that, for a specific application scenario of 5G NR, a ULgrant configuration scheme provided in the embodiments of the present invention is used to implement transmission of high-reliability and low-latency service types, and in all embodiments of the present invention, a URLLC service is taken as an example to describe the high-reliability and low-latency service.
Fig. 3 is a schematic diagram of data service transmission processing of URLLC when configured with Grant free type TB, as shown in fig. 3, PDCP transmits the service of URLLC to the logical channel of RLC layer for transmission, and when configured with the logical channel, the embodiment of the present invention pre-configures a transmission resource block for Grant free scheduling, and allocates resources in advance through the Grant free, and when a UE has a data packet to be sent, it can directly transmit on the resources allocated in advance without waiting for the UL Grant corresponding to the service.
It can be understood that, in the process of performing URLLC service transmission, there may be a plurality of transmission resource blocks that can be used simultaneously, and the priority of the transmission resource block of Grant free is configured to be the highest in the embodiment of the present invention, that is, URLLC preferentially uses the transmission resource block configured as Grant free to perform data transmission.
On the basis of the foregoing embodiment, if the service type of the current data service transmission corresponding to the application scenario is a service with high reliability and low time delay, selecting an authorization-free scheduling transmission resource block from all available transmission resource blocks as the service for data encapsulation, specifically including:
acquiring the time delay of the transmission resource block of the authorization-free scheduling;
and if the time delay of the transmission resource block of the authorization-free scheduling meets the time delay requirement pre-configured for the high-reliability and low-time-delay service, using the transmission resource block of the authorization-free scheduling to perform data encapsulation for the high-reliability and low-time-delay service.
It can be understood that not all transmission resource blocks configured as the Grant free can be used by the URLLC, as shown in fig. 3, if there is one transmission resource block of the Grant free with high latency and one transmission resource block of the Grant free with low latency and other transmission resource blocks, the transmission resource block of the Grant free with lower latency is selected for transmission in the embodiment of the present invention.
Further, if the delay of the transmission resource block of the Grant free with high delay is too high to meet the requirement of URLLC, the transmission resource block of the Grant free cannot be used for transmission even if the transmission resource block of the current Grant free is idle.
Further, in the embodiment of the present invention, if the service type of the current data service transmission is enhanced mobile broadband eMBB, the eMBB is rejected from using the transmission resource block without the authorization scheduling for channel resource scheduling.
Fig. 4 is a schematic diagram of data traffic transmission processing of the eMBB according to the embodiment of the present invention when the eMBB is configured with a Grant free type TB and has an idle Grant free resource, as shown in fig. 4, the PDCP entity transmits on a logical channel for a service transmission to the RLC layer that distributes URLLC, when configuring the logical channel, the embodiment of the present invention also configures the transmission resource block of the grant free scheduling in advance, but since the data service type at this time is the eMBB, and the priority of eMBB is lower than URLLC under the scene of 5G NR, in order to prevent the occurrence of the situation that the URLLC has packets to be transmitted when the Grant free resource is occupied by other services, however, this transport block is preferentially reserved for the URLLC service, so the configured UL Grant scheme is that the eMBB cannot use the transport resource block of Grant free for transmission under any circumstances, but can only use transport blocks of other categories for transmission.
It should be noted that, since the Grant free technique is mainly applied to reduce the transmission delay, the resource configured as the Grant free is mainly used for transmission of URLLC data traffic, and the eMBB requirement is different from that of the URLLC traffic, so that the adaptation degree of using the Grant free is not high.
On the basis of the foregoing embodiment, the determining, according to the type of the application scenario, a channel resource scheduling scheme corresponding to the type of the application scenario specifically includes:
when the type of the application scene is a transmission mode of authorized spectrum assisted access (LAA) or an unauthorized frequency band, and the type of the current data service transmission corresponding to the application scene is a high-reliability and low-delay service, if a transmission resource block corresponding to the LAA meets a limitation condition configured by a network for the data service or a logic channel corresponding to the data service, selecting the transmission resource block corresponding to the LAA from all available transmission resource blocks for data encapsulation of the data service;
the restriction conditions of the logical channel configuration include whether to allow the transmission resource block of the LAA to be used, and/or other allowable value ranges related to the time delay and the subcarrier spacing.
If the transmission resource block corresponding to the LAA meets the limitation condition configured by the network for the data service or the logical channel corresponding to the data service, selecting the transmission resource block corresponding to the LAA from all available transmission resource blocks for data encapsulation of the data service, specifically comprising:
acquiring the time delay of a transmission resource block corresponding to the LAA;
and if the time delay of the transmission resource block corresponding to the LAA is smaller than the allowed maximum time delay configured by the data service, using the transmission resource block corresponding to the LAA for carrying out data encapsulation on the service.
Fig. 5 is a schematic diagram of data service transmission processing of URLLC when configured with LAA type TB, as shown in fig. 5, PDCP transmits a service of URLLC to a logical channel of RLC layer for transmission, and when configured with the logical channel, the embodiment of the present invention also pre-configures a transmission resource block corresponding to LAA, if the transmission resource block corresponding to LAA meets the bearer condition of URLLC, the transmission resource block corresponding to LAA is preferentially used for performing channel resource scheduling for URLLC service, and the delay of the transmission resource block corresponding to LAA in the scheduling process needs to meet the maximum delay allowed by URLLC service.
It should be noted that, before accessing the channel, it needs to perform channel monitoring through a monitoring and avoidance mechanism LBT to determine whether the channel is idle or not, and whether the channel can be accessed to transmit data or not, but LBT also causes data service transmission collision, so retransmission is needed, which results in an excessively long delay, whereas URLLC service has a very strict requirement on delay, and if the delay is long, the transmission resource block corresponding to LAA will not meet the service requirement.
Furthermore, the LAA application has a large influence on URLLC and a small influence on services such as eMBB, so that the type of the data service to be transmitted does not need to be considered when transmitting the data service in the LAA application scene, and only the URLLC service needs to be considered.
Since LBT of LAA before accessing the channel may fail, resulting in undeterminable delay of LAA, whether LAA can be applied to URLLC depends on the delay size of LAA.
Then, the configuration scheme of the embodiment of the present invention for the UL grant is as follows: when the delay of the LAA meets the requirement of the current URLLC service, namely the delay is not higher than the maximum delay allowed by the URLLC, the ULgrant of the LAA can be used by the URLLC service configured for the LCH, namely the URLLC data service can be transmitted on the resource; if the delay of the LAA is too long and is higher than the maximum delay allowed by the URLLC, the resource cannot be applied to the transmission of the URLLC service, i.e. when the LCH configuration is performed for the URLLC service, it does not obtain the ULgrant using the LAA.
Fig. 6 is a structural diagram of a data service transmission system according to an embodiment of the present invention, and as shown in fig. 6, the system includes: an acquisition module 1 and a transmission module 2, wherein:
the acquisition module 1 is used for acquiring an application scene of current data service transmission when a logic channel is configured;
the transmission module 2 is configured to determine, according to the type of the application scenario, a channel resource scheduling scheme corresponding to the type of the application scenario, so that the current data service is transmitted according to the channel resource scheduling scheme.
Specifically, how to transmit the data service through the obtaining module 1 and the transmission module 2 may be used to implement the technical solution of the data service transmission method embodiment shown in fig. 2, and the implementation principle and the technical effect are similar, which is not described herein again.
According to the data service transmission method and system provided by the embodiment of the invention, different resource scheduling configuration schemes are completed according to different scenes of the data transmission service, so that the performance requirements of various data services are met.
An embodiment of the present invention provides a data service transmission device, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein:
fig. 7 is a block diagram of a data service transmission device according to an embodiment of the present invention, and referring to fig. 7, the data service transmission device includes: a processor (processor)810, a communication Interface 820, a memory 830 and a bus 840, wherein the processor 810, the communication Interface 820 and the memory 830 communicate with each other via the bus 840. The communication interface 820 may be used for information transfer between a server and a data service transfer device. The processor 810 may call logic instructions in the memory 830 to perform the following method: when a logic channel is configured, acquiring an application scene of current data service transmission; and determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme.
An embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer can execute the methods provided by the above method embodiments, for example, the method includes: when a logic channel is configured, acquiring an application scene of current data service transmission; and determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme.
Embodiments of the present invention provide a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to perform the methods provided by the above method embodiments, for example, the methods include: when a logic channel is configured, acquiring an application scene of current data service transmission; and determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for transmitting data traffic, comprising:
when a logic channel is configured, acquiring an application scene of current data service transmission;
determining a channel resource scheduling scheme corresponding to the type of the application scene according to the type of the application scene, so that the current data service is transmitted according to the channel resource scheduling scheme;
wherein, the determining, according to the type of the application scenario, a channel resource scheduling scheme corresponding to the type of the application scenario specifically includes:
when the type of the application scene is a transmission mode of authorized spectrum assisted access (LAA) or an unauthorized frequency band, and the type of the current data service transmission corresponding to the application scene is a high-reliability and low-delay service, if a transmission resource block corresponding to the LAA meets a limitation condition configured by a network for the data service or a logic channel corresponding to the data service, selecting the transmission resource block corresponding to the LAA from all available transmission resource blocks for data encapsulation of the data service;
the restriction conditions of the logical channel configuration include whether to allow the use of the transmission resource block of the LAA and/or other allowable value ranges related to time delay and subcarrier spacing;
if the transmission resource block corresponding to the LAA meets the limitation condition configured by the network for the data service or the logical channel corresponding to the data service, selecting the transmission resource block corresponding to the LAA from all available transmission resource blocks for data encapsulation of the data service, specifically comprising:
acquiring the time delay of a transmission resource block corresponding to the LAA;
and if the time delay of the transmission resource block corresponding to the LAA is smaller than the allowed maximum time delay configured by the data service, using the transmission resource block corresponding to the LAA for carrying out data encapsulation on the service.
2. The method according to claim 1, wherein the determining, according to the type of the application scenario, the channel resource scheduling scheme corresponding to the type of the application scenario specifically includes:
and if the service type of the current data service transmission corresponding to the application scene is a service with high reliability and low time delay, selecting a transmission resource block without authorization scheduling from all available transmission resource blocks as the service for data encapsulation.
3. The method according to claim 2, wherein if the service type of the current data service transmission corresponding to the application scenario is a service with high reliability and low delay, selecting a transmission resource block without grant scheduling from all available transmission resource blocks for data encapsulation of the service, specifically comprising:
acquiring the time delay of the transmission resource block of the authorization-free scheduling;
and if the time delay of the transmission resource block of the authorization-free scheduling meets the time delay requirement pre-configured for the high-reliability and low-time-delay service, using the transmission resource block of the authorization-free scheduling to perform data encapsulation for the high-reliability and low-time-delay service.
4. A data traffic transmission system, characterized in that said system comprises:
the acquisition module is used for acquiring an application scene of current data service transmission when the logic channel is configured;
a transmission module, configured to determine, according to the type of the application scenario, a channel resource scheduling scheme corresponding to the type of the application scenario, so that the current data service is transmitted according to the channel resource scheduling scheme;
the transmission module is further configured to, when the type of the application scenario is a transmission mode in which licensed spectrum is assisted to access an LAA or an unlicensed frequency band, and a service type of current data service transmission corresponding to the application scenario is a high-reliability and low-latency service, select a transmission resource block corresponding to the LAA from all available transmission resource blocks for data encapsulation of the data service if the transmission resource block corresponding to the LAA meets a limitation condition configured by a network for the data service or a logical channel corresponding to the data service;
the restriction conditions of the logical channel configuration include whether to allow the use of the transmission resource block of the LAA and/or other allowable value ranges related to time delay and subcarrier spacing;
if the transmission resource block corresponding to the LAA meets the limitation condition configured by the network for the data service or the logical channel corresponding to the data service, selecting the transmission resource block corresponding to the LAA from all available transmission resource blocks for data encapsulation of the data service, specifically comprising:
acquiring the time delay of a transmission resource block corresponding to the LAA;
and if the time delay of the transmission resource block corresponding to the LAA is smaller than the allowed maximum time delay configured by the data service, using the transmission resource block corresponding to the LAA for carrying out data encapsulation on the service.
5. The data service transmission equipment is characterized by comprising a memory and a processor, wherein the processor and the memory are communicated with each other through a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 3.
6. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of any one of claims 1 to 3.
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| CN111278111B (en) * | 2018-12-05 | 2023-04-28 | 中国移动通信集团浙江有限公司 | Service scene-based network resource differentiated scheduling method and device |
| CN110062470B (en) * | 2019-04-16 | 2023-03-24 | 希诺麦田技术（深圳）有限公司 | Data transmission method, device, storage medium and system based on wireless ad hoc network |
| CN110121214B (en) * | 2019-04-30 | 2021-08-10 | 北京邮电大学 | Multi-channel backoff method and device for unauthorized frequency band |
| CN111918406A (en) * | 2019-05-09 | 2020-11-10 | 中兴通讯股份有限公司 | Wireless access method and device |
| EP4171148A4 (en) * | 2020-07-03 | 2023-08-02 | Huawei Technologies Co., Ltd. | Communication method and apparatus |
| CN112469062B (en) * | 2020-12-17 | 2023-04-18 | 上海闻泰信息技术有限公司 | Wireless communication channel avoidance method, device, medium and computer equipment |
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