WO2020114249A1 - Procédé d'attribution de ressources, dispositif terminal, et dispositif de réseau - Google Patents

Procédé d'attribution de ressources, dispositif terminal, et dispositif de réseau Download PDF

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Publication number
WO2020114249A1
WO2020114249A1 PCT/CN2019/119589 CN2019119589W WO2020114249A1 WO 2020114249 A1 WO2020114249 A1 WO 2020114249A1 CN 2019119589 W CN2019119589 W CN 2019119589W WO 2020114249 A1 WO2020114249 A1 WO 2020114249A1
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Prior art keywords
frequency domain
resource
terminal device
priority
domain resources
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PCT/CN2019/119589
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English (en)
Chinese (zh)
Inventor
温容慧
张兴炜
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华为技术有限公司
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • This application relates to the field of communications, and in particular, to a resource allocation method, terminal equipment, and network equipment.
  • V2X Vehicle to any object
  • D2D 3rd generation partnership project
  • a major application of device (device to device, D2D) technology was successfully established.
  • V2X services can be provided through the PC5 interface and the Uu interface.
  • the PC5 interface is an interface defined on the basis of a straight link (sidelink). Using the PC5 interface, communication and transmission can be performed directly between terminal devices.
  • the resource allocation mode can be divided into a base station scheduling mode (Mode 3) and a terminal device autonomous selection mode (Mode 4).
  • the terminal device autonomous selection mode collisions easily occur between different terminal devices, that is, different terminal devices may select the same frequency domain resource to send service data.
  • the frequency domain resource where the collision occurs carries the service data of different terminal devices, and the different service data affect each other, thereby affecting the delay and reliability of the data transmission on the frequency domain resource.
  • business data can be divided according to priority. Different priorities have different requirements on the network. Among them, high-priority business data has higher requirements on the delay and reliability of data transmission. Such collisions should be avoided. The situation happened.
  • the terminal device in order to avoid the occurrence of a collision, when the terminal device autonomously selects a resource (Mode 4), it first uses a sensing (sensing) method to determine 20% of the idle resources of the system, and then the terminal device is in the 20% of the idle resources. Randomly select frequency domain resources to send business data. Specifically, the terminal device compares the current signal energy of the detected channel with the set threshold value and the energy threshold corresponding to the current service of the channel, and judges that if the terminal device detects that the signal energy on a certain channel is less than the corresponding current service of the channel When the energy threshold is less than the threshold, the channel is determined to be an idle resource.
  • sensing sensing
  • the embodiments of the present application disclose a resource allocation method, which is applied to the automotive field such as V2X or advanced driving assistance system (ADAS), and can be applied to the Internet of Vehicles, such as V2X, LTE-V, etc. This method is used When the data of the first service is sent, the probability of collision with the data of other services when the data of the first service is sent is reduced.
  • V2X automotive field
  • ADAS advanced driving assistance system
  • the first aspect of the embodiments of the present application provides a resource allocation method, which may include:
  • the terminal device when the terminal device sends data of the first service, the terminal device first determines the priority of the first service and obtains resource configuration information.
  • the correspondence between different services and priorities can be preset in the terminal device at the time of shipment, or later set by manual or high-level application layer settings or other devices.
  • the first service may be a high priority service or a low priority service.
  • the resource configuration information includes a correspondence between at least one priority level and a use probability of at least two frequency domain resources, and the at least one priority level includes the priority of the first service.
  • the terminal device may determine the usage probability of the first service in each of the at least two frequency domain resources according to the priority of the first service and the resource configuration information.
  • the terminal device may determine the first frequency domain resource from the at least two frequency domain resources according to the usage probability. Finally, the terminal device sends the data of the first service through the first frequency domain resource.
  • An embodiment of the present application provides a resource allocation method. When transmitting data of a first service, a terminal device determines the use probability of the first service on at least two frequency domain resources according to the priority of the first service Then, the first frequency domain resource is determined according to the use probability, and finally the terminal device uses the first frequency domain resource to send data of the first service. Different services can set different probabilities of use according to their different priorities, thus avoiding the chance of collision with each other.
  • the resource configuration information includes a first usage probability of the at least two frequency domain resources corresponding to a first priority and a second usage probability of the at least two frequency domain resources corresponding to a second priority ,
  • the first law is different from the second law
  • the first law is a law that the first usage probability changes with the increase of the at least two frequency domain resource numbers
  • the second law is that the second usage probability varies with the at least two
  • the law of sequence number changes as the frequency domain resources increase.
  • the resource configuration information is further described: the resource configuration information can be flexibly configured, and different priorities correspond to different laws of the at least two frequency domain resources, which increases the diversity of the solutions.
  • the resource configuration information is further described: in the resource configuration information, at least two frequency domain resources have different usage probabilities corresponding to services of different priorities on the same frequency domain resource, and the usage probability can be set Set at 0%-100%, increasing the diversity of the program.
  • the method may include: the terminal device determining at least two available frequency domain resources whose signal strength is less than a preset threshold, where the preset threshold is a threshold value determined by channel detection to be channel idle; the terminal The device determining the first frequency domain resource according to the use probability of the first service in at least two frequency domain resources includes: the terminal device according to the at least two available frequency domain resources and the first service in the at least two frequency domain resources The probability of use determines the first frequency domain resource.
  • the terminal device determining at least two available frequency domain resources whose signal strength is less than a preset threshold, where the preset threshold is a threshold value determined by channel detection to be channel idle; the terminal The device determining the first frequency domain resource according to the use probability of the first service in at least two frequency domain resources includes: the terminal device according to the at least two available frequency domain resources and the first service in the at least two frequency domain resources The probability of use determines the first frequency domain resource.
  • a frequency domain resource whose signal strength is less than a preset threshold may be regarded as an available frequency domain resource that is “idle”.
  • the preset threshold may be specified in advance through a protocol and stored in the terminal device, or may be sent by the base station in advance to instruct the terminal device to configure.
  • the preset threshold is a threshold for channel detection to determine that the channel is idle value.
  • Signal strength refers to the strength of the signal currently carried on the frequency domain resource. The lower the signal strength, the more the frequency domain resource is "idle” and the better the quality; the higher the signal strength, the frequency domain resource can be considered "occupied” The more the quality is poorer, the better the quality is, the less interference is encountered when sending and receiving data on frequency domain resources, and the delay and reliability are also better. Therefore, by filtering out the first frequency domain resource from the at least two available frequency domain resources, it is beneficial to further improve the reliability of the data for sending the first service.
  • the terminal device acquiring resource configuration information includes: the terminal device receiving the resource configuration information from the network device.
  • the terminal device may be set by the network device, and a setting method is proposed to improve the operability of the solution.
  • the method may include: the terminal device determines resource usage information, the resource usage information includes statistical information of data with different priorities transmitted through the at least two frequency domain resources, and the like;
  • the network device sends the resource usage information, and the resource usage information is used to instruct the network device to generate the resource configuration information.
  • a method for generating resource resource configuration information is provided, which increases the diversity of solutions.
  • the terminal device acquiring resource configuration information includes: the terminal device receiving a configuration instruction; and the terminal device generating the resource configuration information according to the configuration instruction.
  • the configuration instruction may be a distribution value of the use probability corresponding to each frequency domain resource of each priority level.
  • the configuration instruction may also be a parameter in a mathematical expression of the probability distribution of the use of each priority on different frequency domain resources.
  • the mathematical expression is a linear function, and the use of frequency domain resources corresponding to each priority The probability is linearly distributed as the frequency domain resource number increases.
  • the configuration command only needs to transmit k and b therein.
  • another method for generating resource resource configuration information is provided, which increases the diversity of solutions.
  • the method may include: the terminal device determines resource usage information, the resource usage information includes statistical information of data with different priorities sent through the at least two frequency domain resources; the terminal device uses the resource The information adjusts the resource configuration information.
  • the terminal can adjust the resource configuration information according to the current resource usage information, and provides a method for updating the resource configuration information, which makes the solution more complete.
  • the second aspect of the embodiments of the present application provides a resource allocation method, which may include:
  • the network device After the network device determines the resource configuration information, the network device sends the resource configuration information to the terminal device.
  • the network device may be a base station NodeB, an evolved base station (evolved Node B, eNodeB), a base station in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system Wait.
  • the resource configuration information includes a correspondence between at least one priority level and a use probability of at least two frequency domain resources, and the at least one priority level includes the priority of the first service.
  • the resource configuration information is used to instruct the terminal device to select a first frequency domain resource according to the priority of the first service, and use the first frequency domain resource to send data of the first service.
  • the network device instructs the terminal device to determine the first frequency domain resource according to the correspondence between at least one priority in the resource configuration information and the use probability of at least two frequency domain resources, and Use the first frequency domain resource to send the data of the first service.
  • a method for allocating frequency domain resources when a terminal sends data of a first service in a V2X scenario is provided. Different services can set different probabilities of use according to their different priorities, thus avoiding the chance of collision with each other.
  • the method may include: the network device receives resource usage information from the terminal device, the resource usage information includes statistical information that data of different priorities are sent through the at least two frequency domain resources; the network The device determining resource configuration information includes: the network device generating the resource configuration information according to the resource usage information.
  • the resource configuration information includes a first usage probability of the at least two frequency domain resources corresponding to a first priority and a second usage probability of the at least two frequency domain resources corresponding to a second priority ,
  • the first law is different from the second law
  • the first law is a law that the first usage probability changes with the increase of the at least two frequency domain resource numbers
  • the second law is that the second usage probability varies with the at least two
  • the law of sequence number changes as the frequency domain resources increase.
  • the resource configuration information is further described: the resource configuration information can be flexibly configured, and different priorities correspond to different laws of the at least two frequency domain resources, which increases the diversity of the solutions.
  • the resource configuration information is further described: in the resource configuration information, at least two frequency domain resources have different usage probabilities corresponding to services of different priorities on the same frequency domain resource, and the usage probability can be set Set at 0%-100%, increasing the diversity of the program.
  • a third aspect of the embodiments of the present application provides a terminal device having a function of implementing the above-mentioned first aspect and any possible design method of the first aspect.
  • the function can be realized by hardware, or can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a fourth aspect of the embodiments of the present application provides a network device having a function of implementing the above second aspect and any possible design method of the second aspect.
  • the function can be realized by hardware, or can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the fifth aspect of the embodiments of the present application further provides a terminal device, which may include:
  • At least one processor, at least one memory, at least one transceiver, the at least one processor, the at least one memory and the at least one transceiver are communicatively coupled by a line, and the terminal device communicates with the at least one transceiver Communicating with devices other than the terminal device, the at least one memory is used to store program instructions, and the at least one processor is used to execute the program instructions stored in the at least one memory, so that the terminal device executes as The method described in the first aspect and any optional manner in the embodiments of the present application.
  • the sixth aspect of the embodiments of the present application further provides a network device, which may include:
  • At least one processor, at least one memory, at least one transceiver, the at least one processor, the at least one memory and the at least one transceiver are communicatively coupled by a line, and the network device communicates with the at least one transceiver Communicating with devices outside the network device, the at least one memory is used to store program instructions, and the at least one processor is used to execute the program instructions stored in the at least one memory, so that the network device executes as The method described in the second aspect and any optional manner in the embodiments of the present application.
  • a seventh aspect of the embodiments of the present application also provides a computer storage medium, including instructions, which, when run on a computer, cause the computer to execute the method as described in the first aspect and any optional manner described above.
  • An eighth aspect of an embodiment of the present application also provides a computer storage medium, including instructions that, when run on a computer, cause the computer to execute the method described in the foregoing second aspect and any optional manner.
  • the ninth aspect of the embodiments of the present application also provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method as described in the foregoing first aspect and any optional manner.
  • the tenth aspect of the embodiments of the present application also provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method as described in the foregoing second aspect and any optional manner.
  • the terminal device When sending data of the first service, the terminal device first determines the priority of the first service, and determines the use probability of the first service and at least two frequency domain resources according to the priority of the first service and the acquired resource configuration information , And determine the first frequency domain resource according to the use probability, and then send the data of the first service through the first frequency domain resource. Since the resource configuration information indicates the correspondence between different priorities and the use probability of at least two frequency domain resources, the different frequency domain resources corresponding to the services of different priorities are determined by using the probabilities, thereby reducing the collision probability of services of different priorities, That is, the probability of collision between high-priority services and low-priority services is reduced.
  • FIG. 1 is a schematic diagram of a system architecture provided in an embodiment of this application.
  • FIG. 2 is a schematic diagram of an embodiment of a resource allocation method in an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another embodiment of a resource allocation method in an embodiment of this application.
  • 4A is a schematic diagram of an embodiment of a terminal device in an embodiment of this application.
  • 4B is a schematic diagram of another embodiment of a terminal device in an embodiment of this application.
  • FIG. 5 is a schematic diagram of an embodiment of a network device in an embodiment of this application.
  • FIG. 6 is a schematic diagram of another embodiment of a terminal device in an embodiment of this application.
  • FIG. 7 is a schematic diagram of another embodiment of a network device in an embodiment of this application.
  • the International Telecommunication Union has defined three major application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), high reliability and low latency communication (ultrareliable and low latency) communications, URLLC) and massive machine type communications (mMTC).
  • eMBB enhanced mobile broadband
  • URLLC high reliability and low latency communication
  • mMTC massive machine type communications
  • D2D technology refers to the technology of directly transmitting data between neighboring devices in a communication network.
  • the terminal equipment of each node of the D2D communication network has higher requirements.
  • the terminal equipment of each user node can send and receive signals, and has the function of automatic routing (forwarding of messages).
  • data can be directly transmitted between different nodes without passing through intermediate entities, which can reduce the pressure on the core network of the communication system, greatly improve spectrum utilization and throughput, and expand network capacity.
  • V2X will optimize the specific application requirements of V2X on the basis of the existing D2D technology, further reduce the access delay of V2X devices, and resolve resource conflicts.
  • V2X specifically includes vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), and vehicle-to-infrastructure (V2I) application requirements.
  • V2V refers to communication between vehicles based on LTE
  • V2P refers to communication between vehicles based on LTE and people (including pedestrians, cyclists, drivers, or passengers);
  • V2I refers to vehicles based on LTE and roadside devices (roadside unit, RSU) communication, and another vehicle to base station/network (V2N) can be included in V2I.
  • V2N refers to the communication between LTE-based vehicles and base station/network.
  • RSUs There are two types of RSUs: terminal equipment type RSUs, because they are placed on the roadside, the terminal equipment type RSUs are in a non-mobile state and do not need to consider mobility; base station type RSUs can provide timing synchronization to vehicles with which they communicate And resource scheduling.
  • the embodiments of the present application are applied to automotive fields such as V2X or ADAS, and can be applied to Internet of Vehicles, such as V2X, LTE-V, V2X, etc.
  • V2X Internet of Vehicles
  • LTE-V Long Term Evolution
  • V2X Internet of Vehicles
  • the PC5 interface is also called a direct communication interface, that is, an interface for direct communication between terminal devices and terminal devices in a V2X network.
  • FIG. 1 is a schematic structural diagram of a mobile communication system applied in an embodiment of the present application.
  • the mobile communication system includes a core network device 101, a wireless access network device 102, and at least one terminal device (such as terminal device 103 and terminal device 104 in FIG. 1). At least one terminal device may be described by taking the terminal device 103 as an example.
  • the terminal device 103 is connected to the wireless access network device 102 in a wireless manner, and the wireless access network device 102 is connected to the core network device 101 in a wireless or wired manner.
  • the core network device 101 and the wireless access network device 102 may be independent different physical devices, or the functions of the core network device 101 and the logical function of the wireless access network device 102 may be integrated on the same physical device, or It is a physical device that integrates some functions of the core network device 101 and some functions of the wireless access network device 102.
  • the terminal device 103 may be fixed or mobile.
  • FIG. 1 is only a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1.
  • the embodiments of the present application do not limit the number of core network devices 101, radio access network devices 102, and terminal devices 103 included in the mobile communication system.
  • the wireless access network device 102 is an access device in which the terminal device 103 wirelessly accesses the mobile communication system, and may be a base station NodeB, an evolved base station eNodeB, a base station in a 5G mobile communication system, or a future mobile communication system.
  • the embodiments of the present application do not limit the specific technology and the specific device form adopted by the wireless access network device 102.
  • the terminal device 103 may also be referred to as a terminal device terminal, user equipment (UE), mobile station (MS), mobile terminal device (mobile terminal, MT), or the like.
  • the terminal device 103 may be a mobile phone (mobile phone), a tablet computer (portable Android device, Pad), a computer with wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, Wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote surgery, wireless terminal equipment in smart grid, Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • VR virtual reality
  • AR augmented reality
  • the wireless access network device 102 and the terminal device 103 can be deployed on land, including indoor or outdoor, handheld, or vehicle-mounted; they can also be deployed on the water; and they can also be deployed on airplanes, balloons, and satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the wireless access network device 102 and the terminal device 103.
  • the embodiments of the present application may be applicable to downlink signal transmission, uplink signal transmission, and D2D signal transmission.
  • the sending device is a wireless access network device 102
  • the corresponding receiving device is a terminal device 103.
  • the sending device is the terminal device 103
  • the corresponding receiving device is the wireless access network device 102.
  • the sending device is the terminal device 103
  • the corresponding receiving device may be the terminal device 104.
  • the embodiments of the present application do not limit the signal transmission direction.
  • the communication between the wireless access network device 102 and the terminal device 103 and between the terminal device 103 and the terminal device 104 can be performed through a licensed spectrum (licensed spectrum), or through an unlicensed spectrum (unlicensed spectrum), or both.
  • Authorized spectrum and unlicensed spectrum communicate.
  • Communication between the wireless access network device 102 and the terminal device 103 and between the terminal device 103 and the terminal device 104 can be performed through the spectrum below 6G, can also communicate through the spectrum above 6G, and can also use the spectrum below 6G and the Communication over 6G spectrum.
  • the embodiments of the present application do not limit the spectrum resources used between the radio access network device 102 and the terminal device.
  • the embodiments of the present application provide a method of resource allocation, which is applied to the automotive field such as V2X or ADAS, and can be applied to the Internet of Vehicles, such as V2X, LTE-V, V2X, etc. This method is used when sending data of the first service To reduce the probability of collision with other data when the data of the first service is sent.
  • the method of configuring the use probability corresponding to different frequency domain resources for different services may be: 1) pre-set in the terminal device; 2) configured by the base station for the terminal device: the terminal device broadcasts/controls and other messages Read in.
  • the frequency domain resources can be divided into: subcarriers/resource blocks (RB)/resource block groups (RBG)/subchannels/resource pools/carriers, etc.
  • the domain resource is one or more of subcarrier/RB/RBG/subchannel/resource pool/carrier, etc., which is not specifically limited here. The two setting methods are explained below:
  • FIG. 2 is a schematic diagram of an embodiment of a method for resource allocation according to an embodiment of the present application, which may include:
  • the terminal device determines the priority of the first service.
  • the terminal device locally presets the correspondence between different services and priorities, and the correspondence can be preset in the terminal device at the factory, or manually afterwards, or set by a high-level application layer or other
  • the device is set, and the corresponding relationship is shown in Table 1.
  • the terminal device adds a priority label to the data according to the corresponding relationship.
  • the priority may be a newly defined service priority, or an existing short-range communication data packet priority (proseper-packet priority, PPPP) priority, specific There is no limitation here.
  • the priority of different services is usually configured through the high-level application layer.
  • the information sent by ambulances to other users requesting to give way has high priority
  • the information of vehicle emergency braking is second
  • the vehicle interaction information sent by ordinary vehicles periodically (such as (Vehicle speed, position, etc.) priority will be lower.
  • the priority of different services can also be manually set, and the terminal device adjusts the priority of different services by responding to user operations.
  • Table 1 it is a schematic table of the correspondence between different services and priorities (the lower the priority number, the higher the priority of the corresponding service).
  • the terminal device receives the configuration instruction.
  • the configuration instruction may be an instruction to perform factory setting on the terminal device when the terminal device is shipped from the factory, or an instruction generated by the terminal device in response to a user operation.
  • the terminal device generates resource configuration information according to the configuration instruction, where the resource configuration information includes a correspondence between at least one priority level and a use probability of at least two frequency domain resources, and the at least one priority level includes the priority of the first service.
  • the terminal device generates resource configuration information according to the configuration instruction and stores it locally.
  • the configuration instruction may be a distribution value of the use probability corresponding to each frequency domain resource of each priority level.
  • the configuration instruction may also be a parameter in a mathematical expression of the probability distribution of the use of each priority on different frequency domain resources.
  • the mathematical expression is a linear function, and the use of frequency domain resources corresponding to each priority The probability is linearly distributed as the frequency domain resource number increases.
  • the terminal device obtains resource configuration information locally.
  • the resource configuration information includes a correspondence between services of different priorities and usage probabilities of at least two frequency domain resources. The correspondence may be as shown in Table 2.
  • Table 2 it is a schematic table of the correspondence between different priorities and the use probability P(%) of at least two frequency domain resources.
  • the resource configuration information may include a first usage probability of the at least two frequency domain resources corresponding to the first priority service and a second usage probability of the at least two frequency domain resources corresponding to the second priority service ,
  • the first law is different from the second law, the first law is a law that the first usage probability changes with the sequence number of the at least two frequency domain resources, and the second law is that the second usage probability varies with all Describe the change rule of at least two frequency domain resource serial numbers.
  • the services of various priorities correspond to the use probability of each frequency domain resource and the sequence number of the frequency domain resource.
  • the description of the resource configuration information may include but is not limited to the following ways:
  • the resource configuration information includes a first usage probability of the at least two frequency domain resources corresponding to the first priority and a second usage probability of the at least two frequency domain resources corresponding to the second priority.
  • the first usage probability decreases with increasing number of the at least two frequency domain resources
  • the second usage probability increases with increasing number of the at least two frequency domain resources.
  • the probability of setting high-priority services to occupy resources is decreasing as the resource sequence number increases, and low-priority
  • the probability that the service occupies resources increases as the resource sequence number increases.
  • the frequency domain resources with a lower sequence number have a higher probability of using high-priority services
  • the low-priority services have a lower probability of using
  • the frequency-domain resources with a higher sequence number have a lower probability of using high-priority services.
  • the probability of using low-priority services is high. For example, services with priority 1 have the highest probability of occupying resource 1, while services with other priorities have the highest probability of occupying resource 5. That is to say, on the same frequency domain resource, the corresponding probabilities of services with different priorities are different, so the collision probability of services with different priorities can be reduced.
  • the probability that high-priority services occupy resources in the resource configuration information decreases as the number of resources increases.
  • the frequency domain resources with a lower sequence number have a lower probability of using high-priority services
  • the low-priority services have a higher probability of using
  • the frequency-domain resources with a higher sequence number have a higher probability of using high-priority services.
  • the probability of using low-priority services is low.
  • the service with priority 1 has the highest probability of occupying resource 5, while the service with other priorities has the highest probability of occupying resource 1. That is to say, on the same frequency domain resource, the corresponding probabilities of services with different priorities are different, so the collision probability of services with different priorities can be reduced.
  • the resource configuration information includes the first usage probability of the at least two frequency domain resources corresponding to the first priority and the second usage probability of the at least two frequency domain resources corresponding to the second priority.
  • the first usage probability does not change as the sequence numbers of the at least two frequency domain resources increase
  • the second usage probability increases as the sequence numbers of the at least two frequency domain resources increase
  • the priority of the first priority level The priority level is higher than the second priority level.
  • the probability of setting high-priority services to occupy resources is not to change as the resource sequence number increases, low priority
  • the probability that the service occupies resources increases as the resource sequence number increases.
  • priority 1 services have a greater probability of being idle on resources with a lower resource number, and have a lower chance of collision with other low priority services, making it easier to preempt channels.
  • the resource configuration information includes a first usage probability of the at least two frequency domain resources corresponding to the first priority and a second usage probability of the at least two frequency domain resources corresponding to the second priority.
  • the first usage probability does not change as the sequence numbers of the at least two frequency domain resources increase
  • the second usage probability decreases as the sequence numbers of the at least two frequency domain resources increase
  • the priority of the first priority level The priority level is higher than the second priority level.
  • the resource configuration information can be set to set the probability that high-priority services occupy resources as the resource sequence number increases without changing, and low-priority services
  • the probability of occupying resources decreases as the number of resources increases.
  • priority 1 services have a greater probability of being idle on resources with a higher resource number, and have a lower chance of collision with other lower priority services, making it easier to preempt channels.
  • the resource configuration information includes the first usage probability of the at least two frequency domain resources corresponding to the first priority and the second usage probability of the at least two frequency domain resources corresponding to the second priority.
  • the first usage probability increases with the increase of the at least two frequency domain resource sequence numbers
  • the second usage probability increases with the increase of the at least two frequency domain resource sequence numbers
  • the first usage probability increases with the at least two A frequency domain resource sequence number increments less than the second usage probability increases with the at least two frequency domain resource sequence numbers
  • the priority level of the first priority is higher than the priority of the second priority level.
  • the resource usage probabilities of different priorities can be set in an incremental manner (linear), and the increase range of high priority ( (Slope) is less than that of low priority, thereby restricting the freedom of low priority services in resource selection.
  • low priority services can be arranged to resources with high sequence numbers as much as possible, thereby reducing the channel occupied by high priority services The probability of being conflicted by other businesses.
  • priority 1 services have a greater probability of being idle on resources with a higher resource number, and have a lower chance of collision with other lower priority services, making it easier to preempt channels.
  • the resource configuration information may have the following characteristics: among the at least two frequency domain resources, services with different priorities on the same frequency domain resource have different usage probabilities.
  • different frequency domain resources can be set according to different priorities in the resource configuration information, as shown in Table 8 below, if the first priority corresponds Priority 1, the second priority corresponds to priority 4, then the second frequency domain resource includes resource 1 to resource 4, the third frequency domain resource includes resource 4 and resource 5, and the priority 1 service occupies resource 1 alone and has priority Level 4 services can only occupy resources 4 and 5. Since services of different priorities use different frequency domain resources, the probability of collisions between different priority services is reduced.
  • step 201 and step 202, and step 201 and step 203 have no necessary execution order, and the specific execution order is not limited here.
  • the terminal device determines the use probability of the first service in at least two frequency domain resources according to the priority of the first service and the resource configuration information.
  • the terminal device uses the priority of the first service to query from the resource configuration information and determine the use probability of the first service on resources in different frequency domains.
  • the terminal device determines the first frequency domain resource according to the use probability of the first service in at least two frequency domain resources.
  • the terminal may use a random number method to determine the first frequency domain resources.
  • the first frequency domain resources may be one or more, and may be specifically determined by the terminal The equipment depends on the data volume of the first service.
  • the method for determining the first frequency domain resource may be that the terminal device generates a random number, and then determines the first frequency domain resource according to the random number.
  • the usage probability of the frequency domain resources 1-5 corresponding to the first service is 30%, 25%, 20%, 15%, and 10% respectively.
  • the terminal device randomly generates a 1 -100 random number, if the random number is in the range of (1-30), then the selected first frequency domain resource is frequency domain resource 1, and in turn it can be known that the random numbers corresponding to frequency domain resources 2-5 are ( 31-55), (56-75), (76-90) and (91-100), that is, the terminal device selects the frequency domain resource corresponding to the serial number as the first frequency domain resource according to the generated random number.
  • the terminal device determines at least two available frequency domain resources whose signal strength is less than a preset threshold, and the preset threshold is a threshold value determined by channel detection to be channel idle; the terminal The device determines the first frequency domain resource according to the at least two available frequency domain resources and the use probability of the first service in the at least two frequency domain resources.
  • the terminal device may detect the signal strength of each frequency domain resource among all frequency domain resources available to the current terminal device, and select at least two available signals whose signal strength is greater than a preset threshold Frequency domain resources.
  • a frequency domain resource whose signal strength is less than a preset threshold may be regarded as an available frequency domain resource that is “idle”.
  • the preset threshold may be specified in advance through a protocol and stored in the terminal device, or may be sent by the base station in advance to instruct the terminal device to configure.
  • the preset threshold is a threshold for channel detection to determine that the channel is idle value.
  • the signal strength refers to the strength of the signal currently carried on the frequency domain resource.
  • Table 9 it is a schematic table of detection results of current states of resources in different frequency domains.
  • Frequency domain resource number Preset threshold Current signal strength Current status 1 50 20 Available 2 50 55 Occupy 3 50 35 Available 4 50 70 Occupy 5 50 10 Available
  • the terminal device determines the first frequency domain resource according to at least two available frequency domain resources and the use probability of the first service in different frequency domain resources. Specifically, as shown in Table 9, it can be known that frequency domain resources 1, 3, and 5 are available frequency domain resources. If the current usage probability of the first service in the frequency domain resources 1-5 is 30%, 25%, 20%, 15%, and 10%, when the random number generated by the terminal device is 10, the selected first frequency domain The resource is frequency domain resource 1, if it is 35, the corresponding is frequency domain resource 2, the terminal device judges that frequency domain resource 2 is unavailable, and selects again.
  • the terminal device sends the data of the first service through the first frequency domain resource.
  • the terminal device after determining the first frequency domain resource, the terminal device sends the data of the first service through the first frequency domain resource.
  • the receiver of the data of the first service may be a base station, other terminal equipment, or a roadside device, which is not limited herein.
  • the terminal device may determine resource usage information, and adjust the resource configuration information according to the resource usage information and a preset algorithm.
  • the resource usage information includes data of different priorities.
  • the resource usage information may be generated locally by the terminal device.
  • the statistical information may be the correct/failure probability of the terminal device transmitting data on the at least two frequency domain resources, the synchronization frequency domain resource usage probability, the waiting time for transmitting data, and the like.
  • the resource usage information is statistical information of the failure probability of the terminal device transmitting data on the at least two frequency domain resources.
  • the resource usage information may be as shown in Table 10, which is a schematic table of statistical information of failure results of data with different priorities sent through different frequency domain resources (for illustration only, actual numbers may vary).
  • the adjustment process may be to reduce the use probability of services of different priorities corresponding to resources in the frequency domain with a high probability of failure, and increase the use probability of services of different priorities corresponding to resources in the frequency domain with a small probability of failure.
  • the data of the service of priority 1 has a higher probability of failure through frequency domain resource 3, and the probability of failure on the frequency domain resource 1 is smaller, so the priority 1 service can be increased in the frequency domain resource 1 corresponds to the use probability, and reduces the use probability corresponding to the resource 3 in the frequency domain.
  • priority 2, priority 3, and priority 4 can be adjusted separately, and the use probability of each frequency domain resource corresponding to each adjusted priority can be shown in Table 11.
  • the priority 1 service has a lower probability of failure in the frequency domain resource with a lower sequence number and a higher frequency in the sequence number
  • the service of level 1 uses the probability of sending data on the frequency-domain resource with a higher sequence number to reduce the probability of failure of sending the service data of priority 1.
  • the first frequency domain resource may be determined according to the adjusted resource configuration information.
  • the terminal device may determine the use probability of the first service and at least two frequency domain resources according to the priority and resource configuration information of the first service, and determine the first frequency domain resource according to the use probability, and The data of the first service is sent through the first frequency domain resource. Since the resource configuration information indicates the correspondence between different priorities and the use probabilities of at least two frequency domain resources, the different frequency domain resources corresponding to the services of different priorities are determined by using the probabilities, thereby reducing the collision probability of services of different priorities, That is, the probability of collision between high-priority services and low-priority services is reduced.
  • FIG. 3 is a schematic diagram of another embodiment of a method for resource allocation according to an embodiment of the present application, including:
  • the terminal device determines the priority of the first service.
  • step 301 is similar to step 201 in the embodiment shown in FIG. 2 and will not be repeated here.
  • the network device determines resource configuration information, where the resource configuration information includes a correspondence between at least one priority level and a use probability of at least two frequency domain resources, and the at least one priority level includes the priority of the first service.
  • the network device is preset with resource configuration information.
  • the network device that is, the wireless access network device, is an access device in which the terminal device wirelessly accesses the mobile communication system, and may be a base station NodeB, Evolution Type base station eNodeB, base station in 5G mobile communication system, base station in future mobile communication system or access node in WiFi system, etc.
  • the embodiments of the present application are not specific to the specific technology and specific device form adopted by the wireless access network equipment. Be limited.
  • the resource configuration information may be received by another network device or generated by the network device, and the resource configuration information includes a correspondence between services of different priorities and usage probabilities of at least two frequency domain resources. It should be noted that the detailed description of the resource configuration information is similar to the description of the resource configuration information in step 203 of the embodiment shown in FIG. 2, and details are not described here.
  • the network device may receive the resource usage information sent by the terminal device and generate resource configuration information according to the resource usage information, where the resource usage information includes data of different priority levels currently passing different frequency domain resources Statistics sent.
  • the resource usage information may be as shown in Table 12, which is a schematic table of statistical information of failure results of data with different priorities transmitted through different frequency domain resources.
  • the base station Assuming that the resource use information illustrated in Table 12 corresponds to the resource configuration information shown in Table 3 in the embodiment shown in FIG. 2, the base station generates resource configuration information according to the resource use message.
  • the process may be that, according to the above Table 12, it can be seen that the data of the service of priority 1 is transmitted through frequency domain resource 3 with a higher probability of failure, while the probability of failure on frequency domain resource 1 is smaller, so priority 1 can be increased
  • the service usage probability corresponding to frequency domain resource 1 reduces the usage probability corresponding to frequency domain resource 3.
  • priority 2, priority 3, and priority 4 can be adjusted separately, and the use probability of each frequency domain resource corresponding to each adjusted priority can be shown in Table 13.
  • the network device After that, the network device generates resource configuration information by using the probability distribution of each frequency domain resource corresponding to each adjusted priority.
  • the network device sends resource configuration information to the terminal device.
  • the network device if the terminal device is within the coverage of the network device, the network device sends the resource configuration information to the terminal device through a broadcast or control signaling message. If the terminal device is outside the coverage of the network device, the network device may Forwarded by a second terminal device that has a direct link connection with the terminal device, so that the resource configuration information is sent to the terminal device. Wherein, the second terminal device is within the coverage of the network device.
  • step 301 and step 302 and step 301 and step 303 there is no inevitable execution order of step 301 and step 302 and step 301 and step 303, and the specific execution order is not limited herein.
  • the terminal device determines the use probability of the first service in at least two frequency domain resources according to the priority of the first service and the resource configuration information.
  • the terminal device determines the first frequency domain resource according to the use probability of the first service in at least two frequency domain resources.
  • the terminal device sends the data of the first service through the first frequency domain resource.
  • steps 304 to 306 are similar to steps 204 to 206 in the embodiment shown in FIG. 2 and will not be repeated here.
  • the network device sends resource configuration information to the terminal device, so that the terminal device can determine the usage probability of the first service and at least two frequency domain resources according to the priority of the first service and the resource configuration information , And determine the first frequency domain resource according to the use probability, and then send the data of the first service through the first frequency domain resource.
  • the resource configuration information indicates the correspondence between different priorities and the use probability of at least two frequency domain resources
  • the different frequency domain resources corresponding to the services of different priorities are determined by using the probabilities, thereby reducing the collision probability of services of different priorities, That is, the probability of collision between high-priority services and low-priority services is reduced.
  • FIG. 4A is a schematic diagram of an embodiment of a terminal device according to an embodiment of the present application, including:
  • the determining unit 401 is used to determine the priority of the first service; determine the use probability of the first service in the at least two frequency domain resources according to the priority of the first service and resource configuration information; according to the first service at least The use probability of two frequency domain resources determines the first frequency domain resource;
  • the obtaining unit 402 is configured to obtain resource configuration information, where the resource configuration information includes a correspondence between at least one priority level and a use probability of at least two frequency domain resources, and the at least one priority level includes the priority of the first service;
  • the transceiver unit 403 is configured to send the data of the first service through the first frequency domain resource.
  • the resource configuration information includes a first usage probability of the at least two frequency domain resources corresponding to a first priority and a second usage probability of the at least two frequency domain resources corresponding to a second priority
  • the first law is different from the second law
  • the first law is the law that the first usage probability changes with the increase of the serial number of the at least two frequency domain resources
  • the second law is that the second usage probability varies with the at least two The law of sequence number changes as the frequency domain resources increase.
  • the determining unit 401 is further configured to determine at least two available frequency domain resources whose signal strength is less than a preset threshold, where the preset threshold is a threshold determined by channel detection to be channel idle; The resource and the use probability of the first service in the at least two frequency domain resources determine the first frequency domain resource.
  • the obtaining unit 402 is specifically configured to receive the resource configuration information from the network device.
  • the determining unit 401 is also used to determine resource usage information, which includes statistical information of data with different priorities sent through the at least two frequency domain resources, etc.;
  • the transceiver unit 403 is also used to send the resource usage information to the network device, and the resource usage information is used to instruct the network device to generate the resource configuration information.
  • the acquisition unit is specifically used to receive configuration instructions; according to the configuration instructions, the resource configuration information is generated.
  • FIG. 4B is a schematic diagram of another embodiment of the terminal device in the embodiment of the present application.
  • the terminal device may further include:
  • the determining unit 401 is further configured to determine resource usage information, where the resource usage information includes statistical information of data with different priorities sent through the at least two frequency domain resources;
  • the adjusting unit 404 is configured to adjust the resource configuration information according to the resource usage information.
  • FIG. 5 is a schematic diagram of an embodiment of a network device in an embodiment of the present application, including:
  • the determining unit 501 is configured to determine resource configuration information, where the resource configuration information includes a correspondence between at least one priority level and a use probability of at least two frequency domain resources, and the at least one priority level includes the priority of the first service;
  • the transceiver unit 502 is used to send the resource configuration information to the terminal device, and the resource configuration information is used to instruct the terminal device to select a first frequency domain resource according to the priority of the first service and send the resource using the first frequency domain resource Data of the first business.
  • the transceiver unit 502 is further configured to receive resource usage information from the terminal device, where the resource usage information includes statistical information that data of different priorities are sent through the at least two frequency domain resources;
  • the determining unit 501 is specifically configured to generate the resource configuration information according to the resource usage information.
  • the resource configuration information includes a first usage probability of the at least two frequency domain resources corresponding to a first priority and a second usage probability of the at least two frequency domain resources corresponding to a second priority
  • the first law is different from the second law
  • the first law is a law that the first usage probability changes with the increase of the at least two frequency domain resource numbers
  • the second law is that the second usage probability varies with the at least two The law of sequence number changes as the frequency domain resources increase.
  • the at least two frequency-domain resources have different usage probabilities corresponding to services of different priorities on the same frequency-domain resource.
  • FIG. 6 is a schematic diagram of another embodiment of a terminal device in an embodiment of the present application, which may include:
  • At least one processor 601, at least one memory 602, at least one transceiver 603, the at least one processor 601, the at least one memory 602 and the at least one transceiver 603 are communicatively coupled through a line, the terminal device A transceiver 603 communicates with devices other than the terminal device, the at least one memory 602 is used to store program instructions, and the at least one processor 601 is used to execute the program stored in the at least one memory 602
  • the instruction causes the terminal device to execute the method executed by the terminal device in the embodiment shown in FIG. 2 or FIG. 3 and any optional manner.
  • FIG. 7 is a schematic diagram of another embodiment of a network device in an embodiment of the present application, which may include:
  • At least one processor 701, at least one memory 702, at least one transceiver 703, the at least one processor 701, the at least one memory 702 and the at least one transceiver 703 are communicatively coupled through a line, and the terminal device A transceiver 703 communicates with devices other than the network device, the at least one memory 702 is used to store program instructions, and the at least one processor 701 is used to execute the program stored in the at least one memory 702
  • the instruction causes the network device to execute the method performed by the network device in the embodiment shown in FIG. 3 and any optional manner.
  • An embodiment of the present application also provides a computer storage medium, including instructions, which, when run on a computer, cause the computer to execute the method performed by the terminal device in the embodiment shown in FIG. 2 or FIG. 3 and any optional manner .
  • An eighth aspect of an embodiment of the present application also provides a computer storage medium, including instructions that, when run on a computer, cause the computer to execute the method performed by the network device in the embodiment shown in FIG. 3 and any optional manner .
  • An embodiment of the present application also provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method performed by the terminal device in the embodiment shown in FIG. 2 or FIG. 3 and any optional manner .
  • An embodiment of the present application also provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method performed by the network device in the embodiment shown in FIG. 3 and any optional manner.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmit to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, Solid State Disk (SSD)) or the like.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a DVD
  • a semiconductor medium for example, Solid State Disk (SSD)
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Des modes de réalisation de la présente invention concernent un procédé d'attribution de ressources, appliqué au domaine des automobiles, tels que V2X ou ADAS, ou à l'Internet des véhicules, tel que V2X et LTE-V. Le procédé est utilisé pour réduire, pendant l'envoi de données d'un premier service, la probabilité de collision entre les données du premier service qui sont envoyées avec des données d'autres services. Le procédé des modes de réalisation de la présente invention comprend les étapes suivantes : un dispositif terminal détermine une priorité d'un premier service ; le dispositif terminal obtient des informations de configuration de ressource, les informations de configuration de ressource comprenant la correspondance entre des services ayant des priorités différentes et des probabilités d'utilisation dans au moins deux ressources du domaine fréquentiel ; le dispositif terminal détermine, en fonction de la priorité du premier service et des informations de configuration de ressource, la probabilité d'utilisation du premier service dans lesdites deux ressources du domaine fréquentiel ; le dispositif terminal détermine une première ressource du domaine fréquentiel en fonction de la probabilité d'utilisation du premier service dans lesdites deux ressources du domaine fréquentiel ; le dispositif terminal envoie des données du premier service au moyen de la première ressource du domaine fréquentiel.
PCT/CN2019/119589 2018-12-07 2019-11-20 Procédé d'attribution de ressources, dispositif terminal, et dispositif de réseau WO2020114249A1 (fr)

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