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WO2018120663A1 - Procédé et terminal de sélection de ressource - Google Patents

Procédé et terminal de sélection de ressource Download PDF

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Publication number
WO2018120663A1
WO2018120663A1 PCT/CN2017/088144 CN2017088144W WO2018120663A1 WO 2018120663 A1 WO2018120663 A1 WO 2018120663A1 CN 2017088144 W CN2017088144 W CN 2017088144W WO 2018120663 A1 WO2018120663 A1 WO 2018120663A1
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WO
WIPO (PCT)
Prior art keywords
resource
attribute
terminal
target
signal strength
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/088144
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English (en)
Chinese (zh)
Inventor
才宇
曾勇波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202111056776.1A priority Critical patent/CN113905439B/zh
Priority to CN201780014180.0A priority patent/CN108702756B/zh
Publication of WO2018120663A1 publication Critical patent/WO2018120663A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of computer technologies, and in particular, to a resource selection method and a terminal.
  • D2D communication based on cellular network is also called Proximity Service (ProSe) in the 3rd Generation Partnership Project (3GPP), and D2D communication allows terminal By directly communicating by multiplexing cell resources, the spectrum efficiency of the cellular communication system can be increased and the terminal transmission power can be reduced, which alleviates the problem of lack of spectrum resources in the wireless communication system to some extent.
  • ProSe Proximity Service
  • 3GPP 3rd Generation Partnership Project
  • V2V vehicle to vehicle
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian
  • V2V vehicle to pedestrian
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian
  • V2X Vehicle to everything
  • V2X is the key technology for future intelligent transportation systems, allowing cars to communicate continuously with all other nearby vehicles and road infrastructure, than between cars such as traffic lights, campuses and railroad crossings.
  • Communication which can undertake communication tasks in a car, may be an embedded telematics system in a car, or a mobile device such as a smartphone on a car, and the like.
  • an in-vehicle UE supporting a V2X application or a UE related to a road user supporting a V2X application can transmit V2P application information.
  • the service traffic of the communication terminal in the V2X communication is cyclical.
  • the shortest period of the Cooperative Awareness Message (CAM) is 100 ms, and the longest period is 1 s.
  • the terminal can predict the next possible according to the periodicity of the traffic.
  • the V2X specifically adds a resource reservation scheme for the terminal to reserve communication resources for the predicted traffic.
  • the terminal can inform other terminals that it wants to reserve some time-frequency resources in the future.
  • the terminal should consider the resources reserved by other terminals, and try to avoid selecting resources that other terminals have reserved, that is, the terminal should monitor when selecting time-frequency resources.
  • the terminal excludes some resources that have been reserved by other terminals, and then randomly selects one resource as the reserved resource among the remaining communication resources. How to select resources in detail is a technical problem that those skilled in the art are studying.
  • the embodiment of the invention discloses a resource selection method and a terminal, which can make the terminal more convenient to select a suitable resource.
  • a first aspect of the embodiments of the present invention discloses a resource selection method, where the method includes: determining, by a terminal, a target resource from at least one resource according to an attribute of a resource, where each resource has a respective attribute and each of the at least one resource
  • the attribute of the resource is one of at least one attribute, and the at least one attribute includes an overlapping attribute and/or a non-overlapping attribute;
  • the resource of the overlapping attribute is a resource that can be used by multiple services, and the resource of the non-overlapping attribute is a resource that can be used by one of the plurality of services; or the resource of the overlapping attribute is a resource that can be used in multiple resource selection manners, and the resource of the non-overlapping attribute is a resource selection in the multiple resource selection manner
  • the resources that can be used in the way includes: determining, by a terminal, a target resource from at least one resource according to an attribute of a resource, where each resource has a respective attribute and each of the at least one resource
  • the attribute of the resource
  • the terminal selects the target resource from the at least one resource ordering
  • the terminal selects the target resource according to the attribute that is allocated for each resource in advance, and the attribute may be specially configured according to requirements, so that the terminal is more easily accessed from the at least one resource. Select the resource you want to choose.
  • the multiple services comprise P2X related V2X side-link communication and non-P2X-related V2X side-link communication.
  • the multiple resource selection manner includes a monitoring resource selection manner and a random selection based The way resources are selected.
  • the terminal determines the target resource from the at least one resource according to the attribute of the resource, including: The terminal determines the target attribute in at least one attribute; the terminal determines, in the at least one resource, the attribute as the target resource of the target attribute.
  • the terminal determining the target attribute in the at least one attribute includes: The probability corresponding to each attribute in an attribute determines the target attribute in the at least one attribute.
  • each of the at least one attribute corresponds to a probability
  • the at least one The sum of the probabilities corresponding to each attribute in the attribute is equal to 1.
  • the terminal determining the target attribute in the at least one attribute including: the terminal according to the at least The channel occupancy rate CBR, congestion level, and utilization of resources for each attribute in an attribute determine the target attribute.
  • the terminal determines the target resource from the at least one resource according to the attribute of the resource, including: The terminal determines the target resource according to the attribute of each resource in at least one resource and the received signal strength, and the received signal strength of each resource is the signal strength received by the terminal on the resource.
  • the terminal determines the target according to the attribute of each resource and the received signal strength of the at least one resource
  • the resource includes: the terminal sorts the at least one resource according to the attribute of each resource in the at least one resource, and each resource of the same attribute is sorted according to the size of the received signal strength of the each resource; the terminal sorts the result according to the at least one resource Identify target resources.
  • the terminal determines the target according to the attribute of each resource and the received signal strength of the at least one resource
  • the resource includes: the terminal determining the target resource according to the received signal strength of each resource in the at least one resource and the weighting factor corresponding to the attribute of each resource.
  • the terminal according to the received signal strength of each resource in the at least one resource, and the each The weighting factor corresponding to the attribute of the resource determines the target resource, the method includes: the terminal multiplying the received signal strength of each resource in the at least one resource by a weighting factor corresponding to the attribute of each resource, to obtain a metric of each resource Value; the terminal is based on The metric value of each resource in the at least one resource sorts the at least one resource; the terminal determines the target resource according to the ranking result of the at least one resource.
  • the weighting factor corresponding to each attribute of the at least one attribute is a network side device Or configured, or the weighting factor corresponding to each attribute of the at least one attribute is pre-configured; or the weighting factor corresponding to each attribute of the at least one attribute is a channel occupancy rate CBR of the resource according to each attribute, congestion At least one of the degree and utilization is determined.
  • the terminal before determining the target resource from the at least one resource according to the attribute of the resource, The method includes: the terminal receiving the indication information sent by the network side device; the terminal determining, according to the indication information, whether to perform the operation of determining the target resource from the at least one resource according to the attribute of the resource.
  • the terminal before determining the target resource from the at least one resource according to the attribute of the resource, The method includes: determining, by the terminal, whether to perform the operation of determining the target resource from the at least one resource according to the attribute of the resource according to at least one of a channel occupancy rate CBR, a congestion degree, and a utilization rate of the resource.
  • an embodiment of the present invention provides a terminal, where the terminal includes a processor and a memory, where the memory is used to store an instruction, and the processor is configured to invoke an instruction in the memory to perform an operation of: at least one according to an attribute of a resource.
  • Determining a target resource in the resource, each of the at least one resource having its own attribute and the attribute of each resource is one of at least one attribute including an overlapping attribute and/or a non-overlapping attribute
  • the resource of the overlapping attribute is a resource that can be used by a plurality of services, and the resource of the non-overlapping attribute is a resource that can be used by one of the plurality of services; or the resource of the overlapping attribute is a plurality of resource selection modes.
  • a resource that can be used, and the resource of the non-overlapping attribute is a resource that can be used in one of the multiple resource selection modes.
  • the terminal selects the target resource from the at least one resource ordering
  • the terminal selects the target resource according to the attribute that is allocated for each resource in advance, and the attribute may be specially configured according to requirements, so that the terminal is more easily accessed from the at least one resource. Select the resource you want to choose.
  • the plurality of services includes P2X-related V2X side-link communication and non-P2X-related V2X side-link communication.
  • the multiple resource selection manner includes a monitoring resource selection manner and a random selection based The way resources are selected.
  • the processor determines the target resource from the at least one resource according to the attribute of the resource, specifically Determining a target attribute in at least one attribute; determining the attribute as a target resource of the target attribute in at least one resource.
  • the processor determines the target attribute in the at least one attribute, specifically: The probability corresponding to each attribute in an attribute determines the target attribute in the at least one attribute.
  • the probability that each of the at least one attribute corresponds to the network side device configuration; or the probability that each of the at least one attribute corresponds to the pre-configured; or each of the at least one attribute is determined according to at least one of channel occupancy rate CBR, congestion degree, and utilization of the resource of each attribute.
  • each of the at least one attribute corresponds to a probability
  • the at least one The sum of the probabilities corresponding to each attribute in the attribute is equal to 1.
  • the processor determines the target attribute in the at least one attribute, specifically: The channel occupancy rate CBR, congestion level, and utilization of resources for each attribute in an attribute determine the target attribute.
  • the processor determines the target resource from the at least one resource according to the attribute of the resource, specifically Determining a target resource according to an attribute of each resource in at least one resource and a received signal strength, where the received signal strength of each resource is a signal strength received by the terminal on the resource.
  • the processor is determined according to an attribute of each resource and a received signal strength of the at least one resource
  • the target resource is specifically: sorting the at least one resource according to the attribute of each resource in the at least one resource, and each resource of the same attribute is sorted according to the size of the received signal strength of the each resource; determining according to the sorting result of the one resource Target resources.
  • the processor is determined according to an attribute of each resource in the at least one resource and a received signal strength
  • the target resource is specifically configured to: determine the target resource according to the received signal strength of each resource in the at least one resource and the weight factor corresponding to the attribute of each resource.
  • the processor according to the received signal strength of each resource in the at least one resource, The weighting factor corresponding to the attribute of each resource determines the target resource, specifically: multiplying the received signal strength of each resource in the at least one resource by a weighting factor corresponding to the attribute of each resource, to obtain a metric of each resource a value; sorting the at least one resource according to the metric value of each of the at least one resource; determining the target resource according to the ranking result of the at least one resource.
  • the weighting factor corresponding to each attribute of the at least one attribute is a network side device Or configured, or the weighting factor corresponding to each attribute of the at least one attribute is pre-configured; or the weighting factor corresponding to each attribute of the at least one attribute is a channel occupancy rate CBR of the resource according to each attribute, congestion At least one of the degree and utilization is determined.
  • the processor before determining the target resource from the at least one resource according to the attribute of the resource, The processor is further configured to: receive the indication information sent by the network side device; and determine, according to the indication information, whether to perform the operation of determining the target resource from the at least one resource according to the attribute of the resource.
  • an embodiment of the present invention provides a terminal, where the terminal includes a determining unit, where the determining unit is configured to determine a target resource from at least one resource according to an attribute of a resource, where each resource has a respective attribute And the attribute of each resource is one of at least one attribute, where the at least one attribute includes an overlapping attribute and/or a non-overlapping attribute; the resource of the overlapping attribute is a resource that can be used by multiple services, and the non-overlapping The resource of the attribute is a resource that can be used by one of the plurality of services; or the resource of the overlapping attribute is a resource that can be used in multiple resource selection manners, and the resource of the non-overlapping attribute is selected by the multiple resource selection manner.
  • a resource that can be used in a resource selection manner is a resource that can be used by a plurality of terminals
  • the resource of the non-overlapping attribute is a resource that can be used by one of the plurality of terminals.
  • the terminal selects the target resource from the at least one resource sorting
  • the terminal selects the target resource according to the attribute that is divided for each resource in advance, and the attribute may be specially configured according to requirements, so that the terminal is more easily accessed from the at least one resource. Select the resource you want to choose.
  • the plurality of services includes P2X-related V2X side-link communication and non-P2X-related V2X side-link communication.
  • the multiple resource selection manner includes a monitoring resource selection manner and a random selection based The way resources are selected.
  • the determining unit includes a first determining subunit and a second determining subunit, where the A determining subunit is configured to determine a target attribute in the at least one attribute; the second determining subunit is configured to determine, in the at least one resource, the attribute as the target resource of the target attribute.
  • the first determining subunit is specifically configured to use each attribute according to the at least one attribute The corresponding probability determines the target attribute in the at least one attribute.
  • each of the at least one attribute corresponds to a probability
  • the at least one The sum of the probabilities corresponding to each attribute in the attribute is equal to 1.
  • the first determining subunit is specifically configured to use each attribute according to the at least one attribute
  • the channel occupancy rate CBR, congestion level, and utilization of the resource determine the target attribute.
  • the second determining sub-unit is specifically configured to be used according to each resource in the at least one resource
  • the attribute and the received signal strength determine a target resource, and the received signal strength of each resource is the signal strength received by the terminal on the resource.
  • the second determining sub-unit is configured according to the attribute and the receiving of each resource in the at least one resource Signal strength Determining the target resource, specifically: sorting the at least one resource according to the attribute of each resource in the at least one resource, and each resource of the same attribute is sorted according to the size of the received signal strength of the each resource; according to the sorting result of the one resource Identify target resources.
  • the second determining unit according to the attribute and the received signal of each resource in the at least one resource
  • the strength determining the target resource is specifically: determining the target resource according to the received signal strength of each resource in the at least one resource and the weighting factor corresponding to the attribute of each resource.
  • the second determining subunit is configured according to the received signal of each resource in the at least one resource
  • the weighting factor corresponding to the strength and the attribute of each resource determines the target resource, specifically: multiplying the received signal strength of each of the at least one resource by a weighting factor corresponding to the attribute of each resource, to obtain each a metric of the resource; sorting the at least one resource according to the metric value of each of the at least one resource; determining the target resource according to the ranking result of the at least one resource.
  • the weighting factor corresponding to each attribute of the at least one attribute is a network side device Or configured, or the weighting factor corresponding to each attribute of the at least one attribute is pre-configured; or the weighting factor corresponding to each attribute of the at least one attribute is a channel occupancy rate CBR of the resource according to each attribute, congestion At least one of the degree and utilization is determined.
  • the terminal further includes a receiving unit and a determining unit, where the receiving unit is configured to The determining unit receives the indication information sent by the network side device before determining the target resource from the at least one resource according to the attribute of the resource; the determining unit is configured to determine, according to the indication information, whether the determining unit is determined from the at least one resource according to the attribute of the resource. The operation of the target resource.
  • the terminal further includes a computing unit, where the calculating unit is configured to determine, according to the resource Before determining the target resource from the at least one resource, determining, according to at least one of the channel occupancy rate CBR, the congestion degree, and the utilization rate of the resource, whether to trigger the determining unit to determine the target resource from the at least one resource according to the attribute of the resource .
  • an embodiment of the present invention provides a readable storage medium, the readable storage medium including instructions that, when executed on a processor, enable the first aspect or any of the possible implementations of the first aspect.
  • the terminal when the terminal selects the target resource from the at least one resource order, the terminal is selected according to the attribute that is divided for each resource in advance, and the attribute may be specially configured according to requirements, so that the terminal is more easily from the at least Select a resource from the resource you want to select.
  • FIG. 1 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a resource selection method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of still another terminal according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a terminal 10 according to an embodiment of the present invention.
  • the terminal 10 includes a processor 101, a memory 102, and a transceiver 103, and the processor 101, the memory 102, and the transceiver 103 can be connected to each other through a bus.
  • the bus may be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (EISA) bus.
  • ISA industry standard architecture
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the transceiver 103 (including a modem) can be coupled to an antenna for converting electromagnetic waves received by the antenna into current and ultimately into digital signals. Accordingly, the transceiver 103 is further configured to output the terminal 10 The digital signal is converted into a current and then converted into an electromagnetic wave, which is finally transmitted into the free space through the antenna.
  • the transceiver 103 can also include at least one amplifier for amplifying the signal.
  • wireless transmission can be performed through the transceiver 103, such as Bluetooth transmission, wireless guarantee (WI-FI) transmission, third generation mobile communication technology (3rd-Generation, 3G) transmission, The 4th Generation mobile communication (4G) transmission, Long Term Evolution (LTE) transmission, 5th-generation mobile communication technology (5G), and the like.
  • the memory 102 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an Erasable Programmable Read Only Memory (EPROM), or A memory read-only memory (CD-ROM), the memory 102 may specifically include a storage instruction area and a storage data area, where the storage instruction area is used to store instructions required for the processor 101 to run, and to store data. The area is used to store pre-configured data or data generated by the operation of the processor 101.
  • RAM random access memory
  • ROM read-only memory
  • EPROM Erasable Programmable Read Only Memory
  • CD-ROM memory read-only memory
  • the memory 102 may specifically include a storage instruction area and a storage data area, where the storage instruction area is used to store instructions required for the processor 101 to run, and to store data. The area is used to store pre-configured data or data generated by the operation of the processor 101.
  • the processor 101 is a control center of the terminal 10, and connects various parts of the entire terminal 10 by various interfaces and lines, and executes various items of the terminal 10 by running a program stored in the memory 102 and calling data stored in the memory 101.
  • the distance sensor may be used when reversing and controlling the distance. Therefore, the terminal 10 may be configured with a distance sensor 104, and the processor 101 may control the distance by calling a program in the memory 102. Sensor 104 collects distance data.
  • the processor 101 may include one or more application processors, for example, a central processing unit (CPU). In the embodiment of the present invention, the processor 101 can execute the method flow shown in FIG. 2 by calling instructions and data in the memory.
  • FIG. 2 is a schematic flowchart of a resource selection method according to an embodiment of the present invention.
  • the method may be implemented based on the terminal shown in FIG. 1, and the method includes but is not limited to the following steps:
  • Step S201 The terminal determines the target resource from the at least one resource according to the attribute of the resource.
  • the terminal needs to use resources (also referred to as “time-frequency resources”) when transmitting data or signals.
  • resources also referred to as “time-frequency resources”
  • the terminal needs to select (or “determine”) the appropriate resources before transmitting the data or signals, which may be called determining.
  • the resource used to transmit data or signals is the target resource.
  • the resource to be selected may be one or more.
  • the embodiment of the present invention is generally referred to as a candidate resource as at least one resource, and each resource of the at least one resource has a respective attribute and the attribute of each resource is at least one.
  • the quantity of the at least one attribute may be preset, for example, the at least one attribute is two attributes, and the two attributes are specifically attribute 1 and attribute 2, and the at least one resource is 30 assets Source, the attribute of 10 of the 30 resources is attribute 1 and the attribute of the other 20 resources is attribute 2.
  • Each of the at least one resource may be pre-defined or may be categorized in real time by a predetermined algorithm.
  • the at least one attribute includes at least an overlapping attribute.
  • the at least one attribute includes at least a non-overlapping attribute.
  • the at least one attribute includes at least an overlapping attribute and a non-overlapping attribute, and the overlapping attribute and Non-overlapping attributes may also have other names.
  • overlapping attributes may also be referred to as "shared" attributes
  • non-overlapping attributes may also be referred to as "non-shared" attributes.
  • the resource of the overlapping attribute is a resource that can be used by multiple pre-planned resources
  • the resource of the non-overlapping attribute is a resource that can be used by one of the multiple services (that is, only one type of service is used for the
  • the resources of the attribute have selection rights.
  • the plurality of services include P2X-related V2X side-link communication and non-P2X-related V2X side-link communication.
  • the resource of the overlapping attribute is a resource that can be used in multiple resource selection manners
  • the resource of the non-overlapping attribute is a resource that can be used in one of the multiple resource selection modes
  • the multiple Resource selection methods include monitoring based resource selection methods and resource selection methods based on random selection.
  • step S2011-S2012 there are many possibilities in the specific implementation of the step S201.
  • step S2016 is the step S2016, as follows:
  • the first option is:
  • Step S2011 The terminal determines an attribute in at least one attribute.
  • the embodiment of the present invention uses a certain rule to determine an attribute from the preset at least one attribute as a target attribute, so as to subsequently select resources from the resources belonging to the target attribute (each resource has its own attribute and the resource
  • the attribute is one of the at least one attribute, and the attributes of the two different resources may be the same or different.
  • the solution A determining, by the terminal, the target attribute in the at least one attribute, where the terminal determines the target attribute in the at least one attribute according to the probability corresponding to each attribute of the at least one attribute, for example, according to the preset
  • the rule generates a value; and determining an attribute in the at least one attribute according to the magnitude relationship of the value and the probability corresponding to each of the at least one attribute obtained in advance, and the determined attribute is the target attribute.
  • each attribute of the at least one attribute corresponds to a probability, and a sum of probabilities corresponding to each attribute is equal to 1.
  • the probability corresponding to each attribute of the at least one attribute is configured by the network side device.
  • the base station sends a message to the terminal, where the message carries the probability corresponding to each attribute.
  • the probability corresponding to each attribute of the at least one attribute is pre-configured in the terminal, for example, the probability of each attribute corresponding to each attribute is pre-stored in the memory of the terminal, and, for example, the card inserted by the user into the terminal (For example, a Subscriber Identification Module (SIM) card, a memory card) or a chip or a magnetic strip carries the probability that each attribute corresponds to each.
  • SIM Subscriber Identification Module
  • the probability that each attribute of the at least one attribute corresponds to is determined according to at least one of a channel occupancy rate CBR, a congestion level, and a utilization rate of the resource of each attribute, for example, the at least one attribute is included
  • the UE separately measures the CBR of the overlapping attribute resource and the CBR of the non-overlapping attribute resource, and the larger the ratio of the CBR of the resource of the non-overlapping attribute to the CBR of the resource of the overlapping attribute, the more the probability of determining the non-overlapping attribute is Low, in short, the probability of each attribute can be calculated according to the CBR of the resource, but the specific calculation details are not limited here.
  • Solution B The terminal determines the target attribute in the at least one attribute, which may be specifically: according to the at least one attribute At least one of the CBR, the degree of congestion, and the utilization of the resource of each attribute selects one attribute from the at least one attribute, and the selected attribute is the target attribute. For example, the terminal acquires (eg, measures) the CBR of each resource of the overlapping attribute, and then calculates the average CBR of the resource of the overlapping attribute according to the CBR of each resource of the overlapping attribute, if the CBR of the resource of the overlapping attribute is higher than or equal to a certain A preset threshold determines a non-overlapping attribute.
  • the terminal acquires (eg, measures) the CBR of each resource of the overlapping attribute, and then calculates the average CBR of the resource of the overlapping attribute according to the CBR of each resource of the overlapping attribute, if the CBR of the resource of the overlapping attribute is higher than or equal to a certain
  • a preset threshold determines a non-overlapping attribute.
  • the terminal acquires (eg, measures) the CBR of each resource of the non-overlapping attribute, and then calculates the average CBR of the resource of the non-overlapping attribute according to the CBR of each resource of the non-overlapping attribute, if the average CBR of the resource of the non-overlapping attribute is lower than or Equal to a preset threshold to determine non-overlapping attributes.
  • Step S2012 The terminal determines, in at least one resource, a target resource whose attribute is the target attribute.
  • the terminal selects a resource whose attribute is the target attribute from the at least one resource, and the quantity of the selected resource. It can be one or more; it can be selected randomly when it is selected, or it can be selected according to a predefined rule.
  • the terminal selects the target attribute before selecting the resource, and then selects the required resource from the resources belonging to the target attribute.
  • the advantage of this is that the policy can be configured to make the terminal select the selected one.
  • the probability that the target attribute is a non-overlapping attribute is larger, so that the terminal can more easily select the resource of the non-overlapping attribute, and can avoid the resource selected by the terminal to be the same as the resource used by other devices, thereby reducing the conflict of resource usage.
  • the second option is:
  • Step S2016 The terminal determines a target resource according to an attribute of each resource in at least one resource and a received signal strength, where a received signal strength of each resource is a received signal strength received by the terminal on the resource, that is, When determining the target resource, at least two kinds of information, such as the attribute of the resource and the strength of the received signal, need to be considered. However, the specific information of the two kinds of information is not limited herein. Two implementation modes are listed below to facilitate understanding.
  • Implementation manner 1 The terminal determines the target resource according to the attribute of each resource in at least one resource and the received signal strength, which may be specifically:
  • the terminal sorts the at least one resource according to the attribute of each resource in the at least one resource, and each resource of the same attribute is sorted according to the size of the signal receiving strength of the each resource, that is, the sorting needs at least the resource consideration
  • the priority of the attribute is higher than the priority of the received signal strength; for example, the resources of the first type and the second type are shared among the at least one resource, all first
  • the resources of the class are ranked before all the resources of the second class.
  • the resource with the stronger received signal strength in each class of resources is ranked higher. That is, in the first class of resources, the resource with higher received signal strength is ranked higher.
  • the resource with the higher received signal strength is ranked higher; optionally, the first type is a non-overlapping attribute, and the second type is an overlapping attribute.
  • the terminal determines the target resource according to the sorting result of the at least one resource, for example, directly selecting the resource as the target resource from the sorted result, or selecting from the first to the last Tth resources from the sorted list
  • the resource is used as the target resource, or the resource is selected as the target resource from the first to the right T-th resource in the sorted list, and T is greater than or equal to 1.
  • it can be selected according to a preset algorithm, such as a random algorithm.
  • the terminal determines the target resource according to the attribute of each resource and the received signal strength of the at least one resource, and may be specifically: the terminal determines, according to the received signal strength of each resource in the at least one resource, and the weighting factor corresponding to the attribute of each resource.
  • Target resources Each of the at least one attribute corresponds to a respective weighting factor, two different attributes The corresponding weighting factors are generally not equal (but do not exclude equal possibilities).
  • the at least one attribute refers to an overlapping attribute and a non-overlapping attribute, wherein the overlapping attribute corresponds to a weighting factor of 0.3, and the non-overlapping attribute corresponds to a weight.
  • the factor is 0.7, and the weighting factor corresponding to the attribute of the resource and the received signal strength of the resource are determined in determining the target resource.
  • the weighting factor corresponding to each attribute of the at least one attribute is configured by the network side device.
  • the base station sends a message to the terminal, where the message carries a weighting factor corresponding to each attribute.
  • the weighting factor corresponding to each attribute of the at least one attribute is pre-configured, for example, the weighting factor corresponding to each attribute is pre-stored in the memory of the terminal, and, for example, the card inserted by the user into the terminal (for example, A Subscriber Identification Module (SIM) card, a memory card, or a chip or a magnetic strip carries a weighting factor corresponding to each attribute.
  • SIM Subscriber Identification Module
  • the weighting factor corresponding to each attribute of the at least one attribute is determined according to at least one of a channel occupancy rate CBR, a congestion level, and a utilization rate of the resource of each attribute, for example, if the at least one attribute is included
  • the UE respectively measures the CBR of each resource of the overlapping attribute and the CBR of each resource of the non-overlapping attribute, and then calculates the average CBR of the resource of the overlapping attribute according to the CBR of each resource of the overlapping attribute, and according to the non-overlapping
  • the CBR of each resource of the attribute calculates the average CBR of the resource of the non-overlapping attribute, and the larger the ratio of the average CBR of the resource of the non-overlapping attribute to the average CBR of the resource of the overlapping attribute, the lower the weighting factor of the non-overlapping attribute is determined, in general,
  • the weighting factor of each attribute can be calculated according to the CBR of the resource, but the specific calculation details are not limited herein.
  • the terminal determines the target resource according to the received signal strength of each resource in the at least one resource and the weighting factor corresponding to the attribute of each resource, which may be specifically:
  • the terminal multiplies the received signal strength of each resource in the at least one resource by a weight factor corresponding to the attribute of each resource to obtain a metric value of each resource; for example, the at least one attribute includes an overlapping attribute. And non-overlapping attributes, wherein the overlapping attribute corresponds to a weighting factor of 0.3, and the non-overlapping attribute corresponds to a weighting factor of 0.7; assuming that the at least one resource refers to resource 1, resource 2, resource 3, resource 4, resource 5, and resource 6, wherein the resource 1 belongs to the resource of the overlapping attribute and the received signal strength is 50, the resource 2 belongs to the resource of the overlapping attribute, and the received signal strength is 200, the resource 3 belongs to the overlapping attribute, and the received signal strength is 400, and the resource 4 belongs to the non- If the resource with overlapping attributes and the received signal strength is 50, the resource 5 belongs to the non-overlapping attribute, and the received signal strength is 200, the resource 6 belongs to the non-overlapping attribute, and the received signal strength is 400, then the metric of the resource 1
  • the metric of resource 4 is equal to 50.
  • the terminal sorts the at least one resource according to the metric value of each resource in the at least one resource; for example, the principle of sorting may be that the metric value corresponding to the resource is smaller, and the resource ranking is higher, with the above six resources. If the metric value is sorted by example, the order from the going to the back is: resource 1, resource 4, resource 2, resource 3, resource 5, and resource 6.
  • the terminal determines the target resource according to the sorting result of the at least one resource, for example, directly selecting the resource as the target resource from the sorted result, or selecting the resource from the first to the last Tth resource species in the sorted list.
  • the target resource or from the ordered list from the first to the t-th resource, the resource is selected as the target resource, and T is greater than or equal to 1.
  • it can be selected according to a preset algorithm, such as a random algorithm.
  • the metric value of each resource is not directly calculated according to the received signal strength of the at least one resource, but the metric value of each resource is calculated according to the weighting factor corresponding to the attribute of each resource. And then sorting the at least one resource according to the metric value of each resource in the at least one resource, and finally selecting the required resource from the sorting result; the advantage of doing so is that the terminal can be configured by using a weighting factor of various attributes. It's easier to choose the resources you want to choose.
  • Step S202 The terminal sends data or a signal through the target resource.
  • the terminal may use the target resource to send data or a signal immediately after determining the target resource; of course, the target resource may also be a resource that is determined by the terminal to send data or signals at a certain moment in the future or for a certain type of information.
  • the reserved resource when the time of using the target resource is reached, the terminal sends data or signals through the target resource.
  • the foregoing steps S201-S202 describe the process of selecting a resource by the terminal, and there may be indication information for triggering the process.
  • the indication information has at least the following two situations: In case one, the indication information may be pre-configured in the terminal (for example, The terminal stores the memory, the chip, the card, and the like, and the terminal can read the indication information to determine whether the process needs to be performed. If it is determined that the process needs to be performed, the process is executed, and if it is determined that the foregoing process is not required to be performed, The process does not perform the above process. In the second case, the network side device sends the indication information to the terminal (other indications may also exist, for example, a trigger message).
  • the terminal receives the indication information and determines whether it is needed according to the indication information.
  • the above process is executed, and if it is determined that the above process needs to be executed, the above process is executed, and if it is determined that the above process is not required, the above process is not executed.
  • the indication information directly indicates whether the terminal needs to perform the above process.
  • the indication information indicates a resource attribute, and the terminal determines, according to the resource attribute, whether to execute the foregoing process.
  • the indication information indicates that the resource is a resource of an overlapping attribute, or the indication information indicates that the resource can be used by the terminal while other information indicates that the resource can also be used by other devices, or the indication information indicates that the resource can be used by other devices while other information indicates resources. It can also be used by the terminal, so that the terminal can determine (and possibly other information) according to the indication information that the resource is a resource of overlapping attributes.
  • the terminal triggers the foregoing process.
  • the terminal does not trigger the foregoing process.
  • the indication information indicates at least one of CBR, congestion degree, and utilization of the resource
  • the terminal determines whether to perform the foregoing process according to the content indicated by the indication information, for example, when the CBR of the resource (or the degree of congestion of the resource, or When the resource utilization rate is higher than or equal to a certain threshold, the terminal triggers the above process.
  • the terminal when the terminal selects a target resource from at least one resource order, it is selected according to an attribute that is previously divided for each resource, and the attribute may be specially configured according to requirements in advance, so that the terminal is more easily Selecting the resource to be selected among the at least one resource.
  • FIG. 3 is a schematic structural diagram of a terminal 30 according to an embodiment of the present invention.
  • the terminal 30 includes at least a determining unit 301, where the determining unit 301 is configured to determine a target resource from at least one resource according to an attribute of a resource.
  • Each of the at least one resource has its own attribute and the attribute of each resource is one of at least one attribute, the at least one attribute including an overlapping attribute and/or a non-overlapping attribute; a resource of the overlapping attribute A resource that can be used for a plurality of services, where the resource of the non-overlapping attribute is a resource that can be used by one of the plurality of services; or the resource of the overlapping attribute is a resource that can be used by multiple resource selection modes, The resource of the non-overlapping attribute is a resource that can be used in one of the multiple resource selection modes.
  • the terminal when the terminal selects the target resource from the at least one resource sorting, the terminal is selected according to the attribute that is divided for each resource in advance, and the attribute may be specially configured according to requirements in advance, so that the terminal is more easily Selecting the resource to be selected among the at least one resource.
  • the plurality of services includes P2X related V2X sidelink communications and non-P2X related V2X sidelink communications.
  • the multiple resource selection manners include a monitoring based resource selection manner and a random selection based resource selection manner.
  • the determining unit includes a first determining subunit and a second determining subunit, the first determining subunit is configured to determine a target attribute in at least one attribute; the second determining subunit A target resource for determining an attribute as the target attribute in at least one resource.
  • the first determining subunit is specifically configured to determine the target attribute among the at least one attribute according to a probability corresponding to each attribute of the at least one attribute.
  • the probability that each of the at least one attribute corresponds to the network side device configuration; or the probability that each of the at least one attribute corresponds to the pre-configured; or the at least The probability corresponding to each attribute of an attribute is determined according to at least one of channel occupancy rate CBR, congestion level, and utilization of the resource of each attribute.
  • each of the at least one attribute corresponds to a probability, and a sum of probabilities corresponding to each of the at least one attribute is equal to 1.
  • the first determining sub-unit is specifically configured to determine the target attribute according to a channel occupancy rate CBR, a congestion level, and a utilization rate of the resource of each attribute in the at least one attribute.
  • the second determining subunit is specifically configured to determine, according to an attribute of each resource in the at least one resource, and a received signal strength, where the received signal strength of the resource is that the terminal is in the The strength of the signal received on the resource.
  • the second determining subunit determines the target resource according to the attribute of each resource in the at least one resource and the received signal strength, specifically: the at least the attribute of each resource in the at least one resource A resource is sorted, and each resource of the same attribute is sorted according to the size of the received signal strength of the respective resources; and the target resource is determined according to the sort result of the one resource.
  • the second determining unit determines the target resource according to the attribute of each resource in the at least one resource and the received signal strength, specifically: according to the received signal strength of each resource in the at least one resource, and the The weighting factor corresponding to the attribute of each resource determines the target resource.
  • the second determining subunit determines the target resource according to the received signal strength of each resource in the at least one resource and the weighting factor corresponding to the attribute of each resource, specifically: the at least one The received signal strength of each resource in the resource is multiplied by a weighting factor corresponding to the attribute of each resource to obtain a metric value of each resource; and the at least one resource is sorted according to the metric value of each resource in the at least one resource. Determining the target resource according to the sorting result of the at least one resource.
  • the weighting factor corresponding to each attribute of the at least one attribute is configured by the network side device; or the weighting factor corresponding to each attribute of the at least one attribute is pre-configured; or The weighting factor corresponding to each of the at least one attribute is determined according to at least one of a channel occupancy rate CBR, a congestion level, and a utilization rate of the resource of each attribute.
  • the terminal further includes a receiving unit and a determining unit, where the receiving unit is used to determine The determining unit receives the indication information sent by the network side device before determining the target resource from the at least one resource according to the attribute of the resource; the determining unit is configured to determine, according to the indication information, whether the determining unit is determined from the at least one resource according to the attribute of the resource. The operation of the target resource.
  • the terminal further includes a calculating unit, configured to: according to the channel occupancy rate CBR and congestion level of the resource, before the determining unit determines the target resource from the at least one resource according to the attribute of the resource And determining, by at least one of the utilization rates, an operation of determining, by the determining unit, the target resource from the at least one resource according to the attribute of the resource.
  • a calculating unit configured to: according to the channel occupancy rate CBR and congestion level of the resource, before the determining unit determines the target resource from the at least one resource according to the attribute of the resource And determining, by at least one of the utilization rates, an operation of determining, by the determining unit, the target resource from the at least one resource according to the attribute of the resource.
  • terminal 30 may also refer to the detailed description of the method embodiment shown in FIG. 2 .
  • the terminal 30 shown in FIG. 3 when the terminal selects a target resource from at least one resource ordering, it is selected according to an attribute that is previously divided for each resource, and the attribute may be specially configured in advance according to requirements, making the terminal easier. Select from the at least one resource to the resource that you want to select.
  • the terminal selects the target resource from the at least one resource order
  • the terminal is selected according to the attribute that is divided for each resource in advance, and the attribute may be specially configured according to requirements, so that the terminal is more easily from the at least one resource. Select the resource you want to select.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé de sélection de ressource et un terminal, le procédé comprenant un terminal déterminant une ressource cible à partir d'au moins une ressource en fonction d'un attribut de la ressource, chaque ressource dans la ou les ressources ayant un attribut respectif, et l'attribut de chaque ressource étant l'un d'au moins un attribut, le ou les attributs comprenant un attribut de chevauchement et/ou un attribut de non-chevauchement. Une ressource ayant l'attribut de chevauchement est une ressource qui peut être utilisée pour une pluralité de services, et une ressource ayant l'attribut de non-chevauchement est une ressource qui peut être utilisée pour un service dans la pluralité de services ; ou la ressource ayant l'attribut de chevauchement est une ressource qui peut être utilisée pour une pluralité de modes de sélection de ressource, et la ressource ayant l'attribut de non-chevauchement est une ressource qui peut être utilisée pour un mode de sélection de ressource dans la pluralité de modes de sélection de ressource. L'utilisation des modes de réalisation de la présente invention permet à un terminal de sélectionner plus facilement des ressources appropriées.
PCT/CN2017/088144 2016-12-29 2017-06-13 Procédé et terminal de sélection de ressource Ceased WO2018120663A1 (fr)

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