WO2020062999A1 - Procédé, dispositif et appareil pour l'attribution de ressources et la réception d'attribution de ressources - Google Patents

Procédé, dispositif et appareil pour l'attribution de ressources et la réception d'attribution de ressources Download PDF

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Publication number
WO2020062999A1
WO2020062999A1 PCT/CN2019/093864 CN2019093864W WO2020062999A1 WO 2020062999 A1 WO2020062999 A1 WO 2020062999A1 CN 2019093864 W CN2019093864 W CN 2019093864W WO 2020062999 A1 WO2020062999 A1 WO 2020062999A1
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Prior art keywords
resource
ues
allocation
resources
assisted
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PCT/CN2019/093864
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English (en)
Chinese (zh)
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李晨鑫
赵锐
郑方政
冯媛
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电信科学技术研究院有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a method, a device, and a device for resource allocation and receiving resource allocation.
  • LTE-V2X Long-Term Evolution-Vehicle
  • the long-term evolution of 3GPP Release 14 and Release 15-Vehicle-to-Everything (LTE-V2X, Long-Term Evolution-Vehicle) through-link communication supports through-link transmission mode 3 and through-link transmission mode 4.
  • the through-link transmission mode 3 is for the base station to allocate resources for terminal scheduling
  • the through-link transmission mode 4 is for the user equipment (User Equipment, UE) to autonomously select resources.
  • LTE-V2X pass-through communication of 3GPP Release14 and Release 15 only supports broadcast communication.
  • 3GPP Release 14's through link transmission mode 4 supports the resource selection mechanism of sensing + semi-persistent scheduling (Sensing + SPS).
  • the specific scheme is as follows:
  • FIG. 1 is a schematic diagram of a time axis for selecting transmission resources on a LTE-V2X single carrier. As shown in the figure, currently, the selection of transmission resources on a LTE-V2X single carrier includes the following steps:
  • Step1 Mark all candidate resources in the resource selection window as available
  • Step2 Exclude occupied resources, including 2 types:
  • the first type is that in the sensing window, the UE sends itself and cannot monitor the service packets sent by other UEs on the sending subframe.
  • the above subframes become skipped subframes. It is necessary to assume that other UEs in the subframe use the system All the configured cycles reserve the next resource, and the reserved resource overlaps the candidate subframes, or overlaps with the 1, 2, ..., 10 * counter-1 transmission subframes after the candidate subframes.
  • the second type is monitoring scheduling assignments (SA, Scheduling Assignment) sent by other UEs in the sensing window.
  • SA Scheduling Assignment
  • PSSCH-RSRP Physical Sidelink Shared Channel-Reference Received Signal Power
  • step 2 If after step 2 is excluded, the remaining resource ratio is lower than 20%, increase the threshold by 3 dB, and re-execute the exclusion process until the remaining resource ratio reaches or exceeds 20%;
  • Step3 Perform direct link-received signal strength indication (S-RSSI) measurement and ranking on candidate resources, select the 20% resource with the lowest S-RSSI measurement value, and the upper layer will start from the above 20% Resource selection is performed among candidate resources.
  • S-RSSI direct link-received signal strength indication
  • the 3GPP Release 15 through link transmission mode 4 adds multi-carrier resource selection processing, that is:
  • the upper layer provides a candidate resource pool for the physical layer.
  • the physical layer performs S-RSSI measurement and ordering on candidate resources according to the resource exclusion of step 1 and step 2 of the Sensing mechanism of 3GPP Release 14, and selects the 20% resource with the lowest S-RSSI measurement value to report to High-level, the high-level selects transmission resources after excluding the following subframes that exceed the UE's transmission capability:
  • the sending resource causes the UE to fail to meet radio frequency (RF) requirements, for example, due to power spectral density imbalance (PSD imbalance, Power Spectrum Density imbalance)
  • the UE performs resource selection independently for each carrier. If the result of resource selection results in simultaneous If the number of transmissions exceeds the sending capability of the UE, the resource selection process is performed again until the resource selection result can be supported by the UE.
  • RF radio frequency
  • 3GPP Release 14 and Release 15 LTE-V2X pass-through communication only supports broadcast communication, and the method of UE autonomous resource selection, such as unicast or multicast communication, cannot effectively avoid the impact of half-duplex. This will result in failure to receive messages sent by other members in the group, resulting in reduced reliability.
  • This application provides a method, a device, and a device for resource allocation and receiving resource allocation, which are used to solve the LTE-V2X through link communication of 3GPP Release14 and Release 15 which only support broadcast communication, and the method of UE autonomous resource selection is used for single
  • the broadcast or multicast communication method cannot effectively avoid the effect of half-duplex, which will cause problems such as failure to successfully receive messages sent by other members in the group, and reduced reliability.
  • An embodiment of the present application provides a method for resource allocation, including:
  • the UE When the UE is performing V2X communication, it determines whether it is a resource allocation UE or a resource assisted allocation UE, where the resource allocation UE is a UE that allocates transmission resources to other UEs, and the resource assisted allocation UE is to provide other UEs with resources that can perform resource selection.
  • Aggregated UE When the UE is performing V2X communication, it determines whether it is a resource allocation UE or a resource assisted allocation UE, where the resource allocation UE is a UE that allocates transmission resources to other UEs, and the resource assisted allocation UE is to provide other UEs with resources that can perform resource selection.
  • Aggregated UE Aggregated UE;
  • the UE allocates resources to other UEs when it determines that it is a resource allocation UE, and when it determines that it is a resource-assisted allocation UE, it provides other UEs with a resource set capable of resource selection.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when the resource allocation UE or the resource assisted allocation UE is determined according to the network side configuration or the network side authorization, the network side sends configuration information or authorization information to the UE for it to determine whether it is the resource allocation UE or the resource assisted allocation UE.
  • a resource allocation UE or a resource assisted allocation UE is determined by itself among member UEs of multicast or unicast communication, the determination is performed in one or a combination of the following ways:
  • a UE capable of allocating resources or assisting in allocating resources to other UEs sends notification information to other member UEs.
  • the other member UEs determine the resource allocation UEs in the group based on at least one of the UE capability or priority information of the notification information or Resource assisted allocation UE;
  • the pre-configuration instruction information of the UE that can be used as the resource allocation or the resource assisted allocation UE is determined by the UE having the corresponding information as the resource allocation UE or the resource assisted allocation UE.
  • the resource allocation UE determines the transmission resources allocated to other UEs, including one or a combination of the following methods:
  • the network side After the resource allocation UE sends a request to the network side, the network side allocates the resource pool and / or part of the bandwidth (BWP); or,
  • the resource allocation UE determines a resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, delay requirements for the UE to send services to which resources are to be allocated , Data transmission rate requirements, reliability requirements, quality of service (QoS), vehicle speed, and baseband parameters (numerology); or,
  • the UE determines the resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the UE-sent service to be allocated resources, based on the pre-configured correspondence: delay requirements, data transmission rate requirements Parameters such as reliability requirements, QoS, vehicle speed, resource pool and / or BWP numerology.
  • the available candidate resource range is determined in one or a combination of the following ways:
  • Resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource allocation UE determines the set of available candidate resources of each other UE based on the following methods: the other UEs to be allocated resources directly report the measurement results; and / Or, other UEs to be allocated resources report a certain percentage of available candidate resources.
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • non-overlapping in the time domain is achieved in one or a combination of the following ways:
  • the resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources, calculate the number of UEs to be allocated resources, record as N, calculate the number of time domain resource counts in the available candidate resources, record Is M; the number of times a single data packet is sent is recorded as k;
  • M ⁇ k ⁇ N for each UE in turn, first select k available time domain resources randomly, and the k available time domain resources should satisfy the time domain limit of the sending resource; then in the k available time domains respectively Randomly select the available frequency domain resources on the resources and send them as service package resources;
  • the sensing result is sent to the resource allocation UE for other UEs to be allocated resources, it is:
  • the UE If the UE reports the proportion of available resources, the proportion of available resources reported by the UE is not considered, and among all candidate resources, after allocating the allocated time domain resources, the UE selects a transmission resource for the UE;
  • the current UE For the current UE, first select k available time domain resources randomly, and the k available time domain resources should meet the time domain limitation of the sending resource; then, randomly select the available frequency domain resources on the k available time domain resources respectively To send resources as business packages.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource-assisted allocation UE determines a set of resources that can be selected for resources provided to other UEs, including one or a combination of the following methods:
  • the network side allocates the resource pool and / or BWP; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, UEs to be assisted in allocating resources Delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and numerology of the sending service; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the UE sending the service to be assisted in allocating resources based on the pre-configured correspondence: delay Parameters such as requirements, data rate requirements, reliability requirements, QoS, vehicle speed, resource pool, and / or BWP's numerology; or,
  • Resource assisted allocation The resource pool and / or BWP provided by the UE for resource allocation of the UE to be assisted in the allocation; or,
  • the UE to be assisted in allocating resources may autonomously select transmission resources on the resource pool and / or BWP allocated by the resource assisted allocation UE.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • the time domain is orthogonal in one or a combination of the following ways:
  • Resource assisted allocation UE on the determined resource pool and / or BWP according to the existing sensing mechanism, a certain percentage of resource sets is obtained, and the resource set satisfies: the number of time domain resources allocated for each UE is recorded as x; M ⁇ x ⁇ N, where the resource allocation UE calculates the number of UEs to be allocated resources, denoted as N, and calculates the number of time domain resource counts in the resource set, denoted as M; or, each time domain resource is used as a granularity Perform energy measurement and select a certain percentage of the number of time domain resources to satisfy: M ⁇ x ⁇ N, where the number of time domain resources is recorded as M, and the resource allocation UE calculates the number of UEs to be allocated resources as N, The number of time domain resources allocated for each UE is recorded as x;
  • Allocate x time domain resources to each UE in turn.
  • allocating time domain resources to the current UE exclude time domain resources that have been allocated to other UEs or resources that have been allocated to assist in allocating the time domain resources of the UE itself and other UEs;
  • x time-domain resources are allocated, and by performing a modulo operation on M with x, the i-th UE is sequentially assigned a time-domain resource combination with a modulus of i.
  • the resource-assisted allocation UE determines the range of available candidate resources in one or a combination of the following ways:
  • Resource assisted allocation UE senses the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource-assisted allocation UE determines the available candidate resource set of each other UE to be allocated resources based on the following methods: other UEs to be allocated with auxiliary resources directly report Measurement results; and / or, other UEs to be assisted in allocating resources report a certain percentage of available candidate resources.
  • the embodiment of the present application provides a method for receiving resource allocation, including:
  • the UE When the UE is performing V2X communication, it determines whether it needs transmission resources provided by other UEs;
  • a resource assisted allocation UE is a UE that provides other UEs with a resource set capable of resource selection.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when determining a resource allocation UE or a resource assisted allocation UE according to the network side configuration or network side authorization, the network side sends configuration information or authorization information to the UE for the UE to determine whether other UEs are resource allocation UEs or resource assisted allocation UEs. .
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • a user equipment is provided in an embodiment of the present application.
  • the user equipment includes:
  • the resource allocation UE is a UE that allocates transmission resources to other UEs
  • the resource assisted allocation UE is to provide other UEs with resource selection capabilities.
  • Transceiver for receiving and sending data under the control of the processor.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when the resource allocation UE or the resource assisted allocation UE is determined according to the network side configuration or the network side authorization, the network side sends configuration information or authorization information to the UE for it to determine whether it is the resource allocation UE or the resource assisted allocation UE.
  • a resource allocation UE or a resource assisted allocation UE is determined by itself among member UEs of multicast or unicast communication, the determination is performed in one or a combination of the following ways:
  • a UE capable of allocating resources to other UEs or assisting in allocating resources sends notification information to other member UEs, and the other member UEs determine the resource allocation UEs in the group based on at least one of the UE capability or priority information of the notification information, or Resource assisted allocation UE;
  • the pre-configuration instruction information of the UE that can be used as the resource allocation or the resource assisted allocation UE is set by the UE with the corresponding information as the resource allocation UE or the resource assisted allocation UE.
  • the resource allocation UE determines the transmission resources allocated to other UEs, including one or a combination of the following methods:
  • the network side After the resource allocation UE sends a request to the network side, the network side performs resource pool and / or BWP allocation; or,
  • the resource allocation UE determines a resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, delay requirements for the UE to send services to which resources are to be allocated , Data transmission rate requirements, reliability requirements, QoS, vehicle speed, numerology; or,
  • the UE determines the resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the UE-sent service to be allocated resources, based on the pre-configured correspondence: delay requirements, data transmission rate requirements Parameters such as reliability requirements, QoS, vehicle speed, resource pool and / or BWP numerology.
  • the available candidate resource range is determined in one or a combination of the following ways:
  • Resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource allocation UE determines the set of available candidate resources of each other UE based on the following methods: the other UEs to be allocated resources directly report the measurement results; and / Or, other UEs to be allocated resources report a certain percentage of available candidate resources.
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • non-overlapping in the time domain is achieved in one or a combination of the following ways:
  • the resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources, calculate the number of UEs to be allocated resources, record as N, calculate the number of time domain resource counts in the available candidate resources, record Is M; the number of times a single data packet is sent is recorded as k;
  • M ⁇ k ⁇ N for each UE in turn, first select k available time domain resources randomly, and the k available time domain resources should satisfy the time domain limit of the sending resource; then in the k available time domains respectively Randomly select the available frequency domain resources on the resources and send them as service package resources;
  • the sensing result is sent to the resource allocation UE for other UEs to be allocated resources, it is:
  • the UE If the UE reports the proportion of available resources, the proportion of available resources reported by the UE is not considered, and among all candidate resources, after allocating the time domain resources allocated, the UE selects a transmission resource for the UE;
  • the current UE For the current UE, first select k available time domain resources randomly, and the k available time domain resources should meet the time domain limitation of the sending resource; then, randomly select the available frequency domain resources on the k available time domain resources respectively To send resources as business packages.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource-assisted allocation UE determines a set of resources that can be selected for resources provided to other UEs, including one or a combination of the following methods:
  • the network side allocates the resource pool and / or BWP; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, UEs to be assisted in allocating resources Delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and numerology of the sending service; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the UE sending the service to be assisted in allocating resources based on the pre-configured correspondence: delay Parameters such as requirements, data rate requirements, reliability requirements, QoS, vehicle speed, resource pool, and / or BWP's numerology; or,
  • Resource assisted allocation The resource pool and / or BWP provided by the UE for resource allocation of the UE to be assisted in the allocation; or,
  • the UE to be assisted in allocating resources may autonomously select transmission resources on the resource pool and / or BWP allocated by the resource assisted allocation UE.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • the time domain is orthogonal in one or a combination of the following ways:
  • Resource assisted allocation UE on the determined resource pool and / or BWP according to the existing sensing mechanism, a certain percentage of resource sets is obtained, and the resource set satisfies: the number of time domain resources allocated for each UE is recorded as x; M ⁇ x ⁇ N, where the resource allocation UE calculates the number of UEs to be allocated resources, denoted as N, and calculates the number of time domain resource counts in the resource set, denoted as M; or, each time domain resource is used as a granularity Perform energy measurement and select a certain percentage of the number of time domain resources to satisfy: M ⁇ x ⁇ N, where the number of time domain resources is recorded as M, and the resource allocation UE calculates the number of UEs to be allocated resources as N, The number of time domain resources allocated for each UE is recorded as x;
  • Allocate x time domain resources to each UE in turn.
  • allocating time domain resources to the current UE exclude time domain resources that have been allocated to other UEs or resources that have been allocated to assist in allocating the time domain resources of the UE itself and other UEs;
  • x time-domain resources are allocated, and by performing a modulo operation on M with x, the i-th UE is sequentially assigned a time-domain resource combination with a modulus of i.
  • the resource-assisted allocation UE determines the range of available candidate resources in one or a combination of the following ways:
  • Resource assisted allocation UE senses the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource-assisted allocation UE determines the available candidate resource set of each other UE to be allocated resources based on the following methods: other UEs to be allocated with auxiliary resources directly report Measurement results; and / or, other UEs to be assisted in allocating resources report a certain percentage of available candidate resources.
  • a user equipment is provided in an embodiment of the present application.
  • the user equipment includes:
  • the UE When the UE performs V2X communication, determine whether the UE itself needs transmission resources provided by other UEs;
  • the resource-assisted allocation UE When determining that the UE itself needs transmission resources provided by other UEs, use the resources to allocate the transmission resources allocated by the UE, and / or select the transmission resources in the resource-assisted allocation resource-provided transmission resource set provided by the UE, where the resource allocation
  • the UE is a UE that allocates transmission resources to other UEs
  • the resource-assisted allocation UE is a UE that provides other UEs with a resource set capable of resource selection
  • Transceiver for receiving and sending data under the control of the processor.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when determining a resource allocation UE or a resource assisted allocation UE according to the network side configuration or network side authorization, the network side sends configuration information or authorization information to the UE for the UE to determine whether other UEs are resource allocation UEs or resource assisted allocation UEs. .
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • An embodiment of the present application provides a resource allocation device, including:
  • An identity determination module is used to determine whether the UE itself is a resource allocation UE or a resource assisted allocation UE when the UE is performing V2X communication, wherein the resource allocation UE is a UE that allocates transmission resources to other UEs, and the resource assisted allocation UE is to other UEs UE providing a resource set capable of resource selection;
  • a resource allocation module is configured to allocate resources to other UEs when determining that the UE is a resource allocation UE according to service needs and the situation of other UEs, and to provide other UEs with resource selection options when determining that the UEs are resource-assisted allocation UEs. Resource collection.
  • An embodiment of the present application provides a device for receiving resource allocation, including:
  • a resource determining module configured to determine whether the UE itself needs transmission resources provided by other UEs when the UE is performing V2X communication;
  • a resource receiving module configured to use a resource to allocate a transmission resource allocated by the UE when determining that the UE itself needs a transmission resource provided by another UE, and / or select transmission from a set of transmission resources provided by the resource assisted allocation UE that can perform resource selection Resources, where a resource allocation UE is a UE that allocates transmission resources to other UEs, and a resource assisted allocation UE is a UE that provides other UEs with a resource set capable of resource selection.
  • the UE since some UEs (such as 1 UE) perform resource allocation or auxiliary scheduling to other UEs, the LTE-V2X through link communication of 3GPP Release14 and Release15 is only supported for broadcasting
  • the UE autonomous resource selection method, such as used for unicast or multicast communication, cannot effectively avoid the effect of half-duplex, which will cause problems such as failure to successfully receive messages sent by other members in the group and reduced reliability. Can reduce interference, effectively avoid half-duplex effects, and improve the reliability of V2X pass-through communication.
  • FIG. 1 is a schematic diagram of a time axis for selecting transmission resources on a LTE-V2X single carrier in the background art
  • FIG. 2 is a schematic flowchart of an implementation method of a resource allocation method according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of an implementation of a method for receiving resource allocation according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a second user equipment according to an embodiment of the present application.
  • 3GPP Release 14 and Release 15 define the LTE-V2X protocol, including two communication methods, namely the direct link communication method between the terminals, and the uplink / downlink communication method between the terminal and the base station.
  • the communication mode of the direct link between the terminals includes two transmission modes, namely, a direct link transmission mode 3 and a direct link transmission mode 4.
  • the through link transmission mode 3 is for the base station to schedule and allocate resources for the terminal, and the through link transmission mode 4 is for the UE to autonomously select resources.
  • the LTE-V2X protocol of 3GPP Release 14 is the technical specification of the first phase of V2X, which can meet the basic set of requirements and support the basic road safety services of 3GPP TR 22.885.
  • the LTE-V2X protocol of 3GPP Release 15 is the technical specification of the second phase of V2X. It introduces mechanisms such as carrier aggregation, high-order modulation, and delay reduction. The related enhanced functions can support some eV2X application cases in 3GPP TR 22.886.
  • LTE V2X defined by 3GPP Release 14 and Release 15 supports broadcast communication only in the direct link communication mode. At the same time, the use cases that 3GPP Release 14 and Release 15 LTE-V2X cannot support in 3GPP TR 22.886 are studied and supported in the third phase of 3GPP V2X.
  • the 3GPP RAN # 80 conference passed the NR V2X SI (Study Item) project of the 3rd phase of 3GPP V2X.
  • the research direction includes communication links that support unicast, multicast, and broadcast through links.
  • the 3GPP Release14 and Release 15LTE-V2X methods cannot fully meet the requirements, such as covering external scenarios and performing unicast Or the UE of the multicast communication cannot effectively avoid the effect of half-duplex through independent selection of resources, resulting in failure to successfully receive messages sent by other members in the group.
  • an embodiment of the present application proposes a resource allocation scheme in which some UEs (for example, 1 UE) perform resource allocation or auxiliary scheduling to other UEs to reduce interference, effectively avoid half-duplex effects, and improve V2X pass-through links.
  • some UEs for example, 1 UE
  • resource allocation or auxiliary scheduling to other UEs to reduce interference, effectively avoid half-duplex effects, and improve V2X pass-through links.
  • the purpose of communication reliability The specific embodiments of the present application will be described below with reference to the drawings.
  • the implementation of the UE that provides the resource and the UE that receives the resource will be described separately, and then an example of the cooperation between the two will be given to better understand the implementation of the solution given in the embodiment of the present application.
  • This way of description does not mean that the two must be implemented together or separately.
  • the UE that provides resources and the UE that receives resources implement it separately, it also solves the problems on the UE side, and the two are used in combination. When you get better technical results.
  • each embodiment will be labeled, for example, embodiment 1, embodiment 2, etc., but this does not mean that each embodiment is independent, in fact, those skilled in the art can according to actual needs
  • the embodiments are combined.
  • the method for determining the resource allocation UE in Embodiment 1 is combined with the method for the resource allocation UE in Embodiment 2 to perform transmission resource allocation for other UEs.
  • the UE that accepts resource allocation / assisted allocation On the UE side that accepts resource allocation / assisted allocation, for the UE that accepts resource allocation, data transmission is performed after receiving the allocated resources; the UE that receives resource assisted allocation, after receiving the allocated resource set, uses the existing mechanism Just perform resource selection and then send. Therefore, in the following implementation, the implementation on the resource allocation UE or resource assisted allocation UE side will be mainly described, but in order to better explain the cooperative implementation of the two, the description will also describe the other side involved.
  • Figure 2 is a schematic diagram of the implementation process of the resource allocation method. As shown in the figure, it may include:
  • Step 201 When the UE is performing V2X communication, determine whether it is a resource allocation UE or a resource assisted allocation UE.
  • the resource allocation UE is a UE that allocates transmission resources to other UEs, and the resource assisted allocation UE is to provide other UEs with available resources.
  • Step 202 The UE allocates resources to other UEs when determining that it is a resource allocation UE according to service needs and the situation of other UEs, and provides the other UE with a resource set capable of resource selection when determining that it is a resource-assisted allocation UE.
  • some UE are determined as resource allocation UEs or resource assisted allocation UEs:
  • Other UEs send requests to the resource allocation UE or the resource-assisted allocation UE, or the resource allocation UE or the resource-assisted allocation UE determines the identity and executes according to the current business needs and the number and location of member UEs:
  • the resource allocation UE allocates transmission resources for other UEs.
  • the resource assisted allocation UE provides other UEs with a set of available resources to choose from.
  • the resource allocation UE or the resource-assisted allocation UE sends the allocated resource information / available resource set to the UE to be allocated / assisted resource allocation, and can pass the physical layer sidelink control channel (PSCCH) through the physical layer.
  • PSCCH physical layer sidelink control channel
  • At least one of a shared channel (Physical Sidelink, Shared Channel, PSSCH) or a dedicated transmission channel for resource allocation information is notified.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when the resource allocation UE or the resource assisted allocation UE is determined according to the network side configuration or the network side authorization, the network side sends configuration information or authorization information to the UE for it to determine whether it is the resource allocation UE or the resource assisted allocation UE.
  • a resource allocation UE or a resource assisted allocation UE is determined by itself among member UEs of multicast or unicast communication, the determination is performed in one or a combination of the following ways:
  • a UE capable of allocating resources or assisting in allocating resources to other UEs sends notification information to other member UEs.
  • the other member UEs determine the resource allocation UEs in the group based on at least one of the UE capability or priority information of the notification information or Resource assisted allocation UE;
  • the pre-configured indication information for the resource allocation UE or the resource assisted allocation UE is determined by the UE having corresponding information as the resource allocation UE or the resource assisted allocation UE.
  • the resource allocation UE or the resource assisted allocation UE may be determined in at least one of the following ways:
  • the network-side configuration or network-side authorization determine a group of UEs or a certain geographic area, some UEs are resource allocation UEs or resource assisted allocation UEs;
  • the UE does not request and report, and the network side directly determines that some of the UEs are resource allocation UEs or resource assistance allocation UEs.
  • the notification of the resource allocation UE or the resource assisted allocation UE The network side sends configuration information or authorization information to at least one of the following UEs:
  • Resource allocation UE or resource assisted allocation UE
  • the member UEs of the multicast or unicast communication it is determined that some of the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the first N or the last N or the center N UEs of the member UEs are determined as resource allocation UEs or resource assisted allocation UEs, where N is an integer and N ⁇ 1;
  • the resource allocation UE or the resource assisted allocation UE may be determined according to the spatial location, and the first N / N / N of the member UEs (N is an integer, N ⁇ 1) are determined as the resource allocation UE or the resource assisted allocation UE.
  • the foremost / last / center of the position refers to the position in a group of UEs, for example, a group of vehicle UEs traveling in a formation, and the frontmost refers to the vehicle UE located in the front of the queue.
  • a UE capable of allocating resources to other UEs or assisting in allocating resources sends notification information to other member UEs, and the other member UEs determine the resources in the group based on at least one of information such as the UE's ability or priority to send the notification information.
  • the pre-configuration instruction information of the UE that can be used as the resource allocation or the resource assisted allocation UE, and the UE having the corresponding information is used as the resource allocation UE or the resource assisted allocation UE;
  • the UE with the highest vehicle body is configured as a resource allocation UE or a resource assisted allocation UE.
  • the resource allocation UE determines the transmission resources allocated to other UEs, including one or a combination of the following methods:
  • the network side After the resource allocation UE sends a request to the network side, the network side performs resource pool and / or BWP allocation; or,
  • the resource allocation UE determines the resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, delay of the service sent by the UE to be allocated resources Requirements, data rate requirements, reliability requirements, QoS, vehicle speed, numerology; or,
  • the resource allocation UE determines a resource pool and / or BWP for allocating resources to other UEs according to one or a combination of the following parameters of the service to be sent by the UE to which the resources are to be allocated, according to the pre-configured correspondence: delay requirements, data transmission rate Parameters such as requirements, reliability requirements, QoS, vehicle speed, resource pool and / or BWP numerology.
  • the available candidate resource range is determined in one or a combination of the following ways:
  • Resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource allocation UE determines the set of available candidate resources of each other UE based on the following methods: the other UEs to be allocated resources directly report the measurement results; and / Or, other UEs to be allocated resources report a certain percentage of available candidate resources.
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • non-overlapping in the time domain is achieved in one or a combination of the following ways:
  • the resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources, calculate the number of UEs to be allocated resources, record as N, calculate the number of time domain resource counts in the available candidate resources, record Is M; the number of times a single data packet is sent is recorded as k;
  • M ⁇ k ⁇ N for each UE in turn, first select k available time domain resources randomly, and the k available time domain resources should satisfy the time domain limit of the sending resource; then in the k available time domains respectively Randomly select the available frequency domain resources on the resources and send them as service package resources;
  • the sensing result is sent to the resource allocation UE for other UEs to be allocated resources, it is:
  • the UE If the UE reports the proportion of available resources, the proportion of available resources reported by the UE is not considered, and among all candidate resources, after allocating the time domain resources allocated, the UE selects a transmission resource for the UE;
  • the current UE For the current UE, first select k available time domain resources randomly, and the k available time domain resources should meet the time domain limitation of the sending resource; then, randomly select the available frequency domain resources on the k available time domain resources respectively To send resources as business packages.
  • Step1 The resource allocation UE determines a resource pool and / or a bandwidth part (BWP) for allocating resources to other UEs in at least one of the following ways:
  • Resource allocation The UE sends a request to the network side, and the network side performs resource pool and / or BWP allocation;
  • Resource allocation UE based on the measurement parameters of the candidate resource pool and / or BWP, the delay requirement of the UE sending the service to be allocated resources, the data transmission rate requirement, the reliability requirement, the QoS, the vehicle speed, and the resource pool and / Or at least one of the baseband parameters numerology of the BWP, determining a resource pool and / or BWP for allocating resources to other UEs;
  • the resource allocation UE is based on at least one of a delay requirement, a data transmission rate requirement, a reliability requirement, a QoS requirement, a vehicle speed, and a resource pool and / or a numerology of the BWP of the service to be allocated by the UE to be allocated resources,
  • the pre-configured correspondence determines the resource pool and / or BWP for allocating resources to other UEs.
  • Step 2 Resource allocation The UE obtains the sensing result of the selected resource pool and / or BWP, and determines the range of available candidate resources in at least one of the following ways:
  • Resource allocation UE senses the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the Sensing process includes, but is not limited to, existing solutions, that is, excluding occupied resources, performing S-RSSI power ordering and excluding resources beyond the UE's transmission capability, measuring and recording control signaling decoding information, excluding resource occupation, resource power ordering, etc .;
  • Other UEs to be allocated resources send a sensing result to the resource allocation UE, and the resource allocation UE may determine the set of available candidate resources of the other UEs of each resource to be allocated based on at least one of the following methods:
  • Other UEs to be allocated resources report a certain percentage of available candidate resources.
  • Step 3 The resource allocation UE allocates transmission resources to other UEs to be allocated resources or allocates transmission resources to the resource allocation UE and other UEs to be allocated resources.
  • the resource allocation UE senses the selected resource pool and / or BWP, a certain percentage of available candidate resources are obtained.
  • the resource allocation UE calculates the number of UEs to be allocated resources, denoted as N, calculates the number of available candidate resources and the number of time domain resource counts, denoted as M; the number of transmissions of a single data packet is denoted as k;
  • M ⁇ k ⁇ N modify the limiting parameters of sensing, for example, increase the PSSCH-RSRP for resource exclusion by a certain value, and re-execute the resource exclusion process of step 2 until M ⁇ k ⁇ N;
  • the resource allocation UE allocates resources that do not overlap in the time domain, and the method may be:
  • Allocate resources to each UE according to a certain order for example, in order from the time domain resource count of available resources of each UE in ascending order, allocate resources in order.
  • the UE reports the result of the sensing, modify the limiting parameters of the sensing, for example, increase the PSSCH-RSRP for resource exclusion by a certain value, and re-execute the resource exclusion process in step 2 until Mi ⁇ k
  • the UE If the UE reports the ratio of available resources, the ratio of available resources reported by the UE is not considered, and among all candidate resources, after allocating the allocated time domain resources, the UE selects a transmission resource for the UE;
  • the current UE For the current UE, first select k available time domain resources randomly, and the k available time domain resources should meet the time domain limitation of the sending resource; then, randomly select the available frequency domain resources on the k available time domain resources respectively To send resources as business packages.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource-assisted allocation UE determines a set of resources that can be selected for resources provided to other UEs, including one or a combination of the following methods:
  • the network side allocates the resource pool and / or BWP; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, UEs to be assisted in allocating resources Delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and numerology of the sending service; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the UE sending the service to be assisted in allocating resources based on the pre-configured correspondence: delay Parameters such as requirements, data rate requirements, reliability requirements, QoS, vehicle speed, resource pool, and / or BWP's numerology; or,
  • Resource assisted allocation The resource pool and / or BWP provided by the UE for resource allocation of the UE to be assisted in the allocation; or,
  • the UE to be assisted in allocating resources may autonomously select transmission resources on the resource pool and / or BWP allocated by the resource assisted allocation UE.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • orthogonality in the time domain is implemented in one or a combination of the following ways:
  • Resource assisted allocation UE on the determined resource pool and / or BWP according to the existing sensing mechanism, a certain percentage of resource sets is obtained, and the resource set satisfies: the number of time domain resources allocated for each UE is recorded as x; M ⁇ x ⁇ N, where the resource allocation UE calculates the number of UEs to be allocated resources, denoted as N, and calculates the number of time domain resource counts in the resource set, denoted as M; or, each time domain resource is used as a granularity Perform energy measurement and select a certain percentage of the number of time domain resources to satisfy: M ⁇ x ⁇ N, where the number of time domain resources is recorded as M, and the resource allocation UE calculates the number of UEs to be allocated resources as N, The number of time domain resources allocated for each UE is recorded as x;
  • Allocate x time domain resources to each UE in turn.
  • allocating time domain resources to the current UE exclude time domain resources that have been allocated to other UEs or resources that have been allocated to assist in allocating the time domain resources of the UE itself and other UEs;
  • x time-domain resources are allocated, and by performing a modulo operation on M with x, the i-th UE is sequentially assigned a time-domain resource combination with a modulus of i.
  • the resource-assisted allocation UE determines the range of available candidate resources in one or a combination of the following ways:
  • Resource assisted allocation UE senses the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource-assisted allocation UE determines the available candidate resource set of each other UE to be allocated resources based on the following methods: other UEs to be allocated with auxiliary resources directly report Measurement results; and / or, other UEs to be assisted in allocating resources report a certain percentage of available candidate resources.
  • the first method of resource-assisted allocation for the UE to provide other UEs with a selection of available resource sets will be described.
  • the resource assisted allocation UE allocates a resource pool and / or BWP to other UEs.
  • the resource-assisted allocation The UE determines the resource pool and / or BWP set for other UEs to assist in the allocation of resources, which can be determined in at least one of the following ways:
  • the resource-assisted allocation UE sends a request to the network side, and the network side performs resource pool and / or BWP set allocation;
  • Resource-assisted allocation UE based on measurement parameters of candidate resource pools and / or BWPs, UE sending service delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and resource pool and / or At least one of the BWP's numerology, determining a candidate resource pool and / or a BWP set to assist in allocating resources to other UEs;
  • Resource-assisted allocation of UE according to at least one of the UE's service delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and resource pool and / or BWP's numerology, etc. Corresponding relationship, determine candidate resource pools and / or BWP sets for other UEs to assist in allocating resources.
  • the UE allocates a resource pool and / or a BWP for the UE to be assisted in allocating resources;
  • each allocated resource pool and / or BWP is orthogonal in time domain.
  • the UE to be assisted in allocating resources autonomously selects sending resources on the resource pool and / or BWP allocated by the resource assisted allocation UE.
  • the second method of resource-assisted allocation UE to provide other UEs with alternative available resource sets will be described.
  • the resource-assisted allocation UE allocates a time-domain resource pattern to other UEs on the determined resource pool and / or BWP.
  • the UE determines the resource pool and / or BWP for other UEs to jointly assist in the allocation of resources, in at least one of the following ways:
  • the resource-assisted allocation UE sends a request to the network side, and the network side performs resource pool and / or BWP allocation;
  • Resource-assisted allocation UE based on measurement parameters of candidate resource pools and / or BWPs, UE sending service delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and resource pool and / or At least one of the BWP's numerology, determining a resource pool and / or a BWP for other UEs to jointly assist in allocating resources;
  • Resource-assisted allocation of UE according to at least one of the UE's service delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and resource pool and / or BWP's numerology, etc.
  • the corresponding relationship is determined as a resource pool and / or a BWP for other UEs to jointly assist in resource allocation.
  • the resource-assisted allocation UE allocates, in a determined resource pool and / or BWP, an orthogonal time domain resource configured or pre-configured on the network side to the UE to be allocated resources in order;
  • the resource allocation UE calculates the number of UEs to be allocated as N and calculates the number of time domain resource counts in the resource set as M; the number of time domain resources allocated for each UE is recorded as x; M ⁇ x ⁇ N.
  • time-domain resource For each time-domain resource with granularity, energy measurement is performed, and a certain number of time-domain resources are selected.
  • the number of time-domain resources is recorded as M, and the resource allocation UE calculates the number of UEs to be allocated resources as N.
  • the number of time domain resources allocated for each UE is denoted by x; it should satisfy:
  • x time-domain resources are allocated.
  • the i-th UE is sequentially allocated a time domain resource combination with a modulus of i.
  • the UE to be assisted in allocating resources autonomously selects the sending resource on the time domain resource combination allocated by the resource assisted allocation UE.
  • the second method of resource-assisted allocation UE to provide other UEs with alternative available resource sets will be described.
  • the resource-assisted allocation UE allocates orthogonal time-domain resources to other UEs on the determined resource pool and / or BWP according to the sensing result.
  • the UE determines the resource pool and / or BWP for other UEs to jointly assist in the allocation of resources, in at least one of the following ways:
  • the resource-assisted allocation UE sends a request to the network side, and the network side performs resource pool and / or BWP allocation;
  • Resource-assisted allocation UE based on measurement parameters of candidate resource pools and / or BWPs, UE sending service delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and resource pool and / or At least one of the BWP's numerology, determining a resource pool and / or a BWP for other UEs to jointly assist in allocating resources;
  • Resource-assisted allocation of UE according to at least one of the UE's service delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and resource pool and / or BWP's numerology, etc.
  • the corresponding relationship is determined as a resource pool and / or a BWP for other UEs to jointly assist in resource allocation.
  • the resource assists the allocation of the UE, obtains the result of the selected resource pool and / or BWP, and determines the range of available candidate resources in at least one of the following ways:
  • the UE senses the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources;
  • the Sensing process at least includes, but is not limited to, existing solutions, that is, excluding occupied resources, performing S-RSSI power ranking, and excluding resources exceeding the UE's sending capability, and the like.
  • Other UEs to be assisted in allocating resources to send a sensing result to the resource assisted allocating UE may determine the available candidate resource set of each other UE to be assisted in allocating resources based on at least one of the following ways:
  • the resource assisted allocation UE allocates a certain proportion of time domain resources to the UEs to be assisted with resource allocation in turn according to the determined range of available candidate resources;
  • the resource allocation UE calculates the number of UEs to be allocated as N and calculates the number of time domain resource counts in the resource set as M; the number of time domain resources allocated for each UE is recorded as x; M ⁇ x ⁇ N.
  • time-domain resource For each time-domain resource with granularity, energy measurement is performed, and a certain number of time-domain resources are selected.
  • the number of time-domain resources is recorded as M, and the resource allocation UE calculates the number of UEs to be allocated resources as N.
  • the number of time domain resources allocated for each UE is denoted by x; it should satisfy:
  • x time-domain resources are allocated.
  • the i-th UE is sequentially assigned a time-domain resource combination with a modulus of i.
  • the UE to be assisted in allocating resources autonomously selects sending resources on the time domain resources allocated by the resource-assisted allocation UE.
  • FIG. 3 is a schematic flowchart of a method for receiving resource allocation. As shown in the figure, the method may include:
  • Step 301 When the UE is performing V2X communication, determine whether it needs transmission resources provided by other UEs;
  • Step 302 When it is determined that it needs transmission resources provided by other UEs, use resources to allocate the transmission resources allocated by the UE, and / or select from a set of transmission resources provided by the resource-assisted allocation UE that can perform resource selection.
  • the allocated UE is a UE that allocates transmission resources to other UEs
  • the resource-assisted allocation UE is a UE that provides other UEs with a resource set capable of resource selection.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when determining a resource allocation UE or a resource assisted allocation UE according to the network side configuration or network side authorization, the network side sends configuration information or authorization information to the UE for the UE to determine whether other UEs are resource allocation UEs or resource assisted allocation UEs. .
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • the embodiments of the present application also provide user equipment, a resource allocation device, and a device that accept resource allocation. Since the principle of problem solving of these devices is similar to the resource allocation method and the method of accepting resource allocation, the implementation of these devices You can refer to the implementation of the method, and the repetition is not repeated.
  • FIG. 4 is a schematic structural diagram of a user equipment.
  • the UE allocates transmission resources to other UEs.
  • the user equipment includes:
  • the processor 400 is configured to read a program in the memory 420 and execute the following processes:
  • the resource allocation UE is a UE that allocates transmission resources to other UEs
  • the resource assisted allocation UE is to provide other UEs with resource selection capabilities.
  • the transceiver 410 is configured to receive and send data under the control of the processor 400.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when the resource allocation UE or the resource assisted allocation UE is determined according to the network side configuration or the network side authorization, the network side sends configuration information or authorization information to the UE for it to determine whether it is the resource allocation UE or the resource assisted allocation UE.
  • a resource allocation UE or a resource assisted allocation UE is determined by itself among member UEs of multicast or unicast communication, the determination is performed in one or a combination of the following ways:
  • a UE capable of allocating resources to other UEs or assisting in allocating resources sends notification information to other member UEs, and the other member UEs determine the resource allocation UEs in the group based on at least one of the UE capability or priority information that sends the notification information or Resource assisted allocation UE;
  • the pre-configuration instruction information of the UE that can be used as the resource allocation or the resource assisted allocation UE is determined by the UE having the corresponding information as the resource allocation UE or the resource assisted allocation UE.
  • the resource allocation UE determines the transmission resources allocated to other UEs, including one or a combination of the following methods:
  • the network side After the resource allocation UE sends a request to the network side, the network side performs resource pool and / or BWP allocation; or,
  • the resource allocation UE determines a resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, delay requirements for the UE to send services to which resources are to be allocated , Data transmission rate requirements, reliability requirements, QoS, vehicle speed, numerology; or,
  • the UE determines the resource pool and / or BWP for allocating resources to other UEs based on one or a combination of the following parameters of the UE-sent service to be allocated resources, based on the pre-configured correspondence: delay requirements, data transmission rate requirements Parameters such as reliability requirements, QoS, vehicle speed, resource pool and / or BWP numerology.
  • the available candidate resource range is determined in one or a combination of the following ways:
  • Resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource allocation UE determines the set of available candidate resources of each other UE based on the following methods: the other UEs to be allocated resources directly report the measurement results; and / Or, other UEs to be allocated resources report a certain percentage of available candidate resources.
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • non-overlapping in the time domain is achieved in one or a combination of the following ways:
  • the resource allocation UE sensing the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources, calculate the number of UEs to be allocated resources, record as N, calculate the number of time domain resource counts in the available candidate resources, record Is M; the number of times a single data packet is sent is recorded as k;
  • M ⁇ k ⁇ N for each UE in turn, first select k available time domain resources randomly, and the k available time domain resources should satisfy the time domain limit of the sending resource; then in the k available time domains respectively Randomly select the available frequency domain resources on the resources and send them as service package resources;
  • the sensing result is sent to the resource allocation UE for other UEs to be allocated resources, it is:
  • the UE If the UE reports the proportion of available resources, the proportion of available resources reported by the UE is not considered, and among all candidate resources, after allocating the time domain resources allocated, the UE selects a transmission resource for the UE;
  • the current UE For the current UE, first select k available time domain resources randomly, and the k available time domain resources should meet the time domain limitation of the sending resource; then, randomly select the available frequency domain resources on the k available time domain resources respectively To send resources as business packages.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource-assisted allocation UE determines a set of resources that can be selected for resources provided to other UEs, including one or a combination of the following methods:
  • the network side allocates the resource pool and / or BWP; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the candidate resource pool and / or BWP: measurement parameters, UEs to be assisted in allocating resources Delay requirements, data transmission rate requirements, reliability requirements, QoS, vehicle speed, and numerology of the sending service; or,
  • the resource assisted allocation UE determines a resource pool and / or BWP for resource selection provided by other UEs based on one or a combination of the following parameters of the UE sending the service to be assisted in allocating resources based on the pre-configured correspondence: delay Parameters such as requirements, data rate requirements, reliability requirements, QoS, vehicle speed, resource pool, and / or BWP's numerology; or,
  • Resource assisted allocation The resource pool and / or BWP provided by the UE for resource allocation of the UE to be assisted in the allocation; or,
  • the UE to be assisted in allocating resources may autonomously select transmission resources on the resource pool and / or BWP allocated by the resource assisted allocation UE.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • the time domain is orthogonal in one or a combination of the following ways:
  • Resource assisted allocation UE on the determined resource pool and / or BWP according to the existing sensing mechanism, a certain percentage of resource sets is obtained, and the resource set satisfies: the number of time domain resources allocated for each UE is recorded as x; M ⁇ x ⁇ N, where the resource allocation UE calculates the number of UEs to be allocated resources, denoted as N, and calculates the number of time domain resource counts in the resource set, denoted as M; or, each time domain resource is used as a granularity Perform energy measurement and select a certain percentage of the number of time domain resources to satisfy: M ⁇ x ⁇ N, where the number of time domain resources is recorded as M, and the resource allocation UE calculates the number of UEs to be allocated resources as N, The number of time domain resources allocated for each UE is recorded as x;
  • Allocate x time domain resources to each UE in turn.
  • allocating time domain resources to the current UE exclude time domain resources that have been allocated to other UEs or resources that have been allocated to assist in allocating the time domain resources of the UE itself and other UEs;
  • x time-domain resources are allocated, and by performing a modulo operation on M with x, the i-th UE is sequentially assigned a time-domain resource combination with a modulus of i.
  • the resource-assisted allocation UE determines the range of available candidate resources in one or a combination of the following ways:
  • Resource assisted allocation UE senses the selected resource pool and / or BWP to obtain a certain percentage of available candidate resources
  • the resource-assisted allocation UE determines the available candidate resource set of each other UE to be allocated resources based on the following methods: other UEs to be allocated with auxiliary resources directly report Measurement results; and / or, other UEs to be assisted in allocating resources report a certain percentage of available candidate resources.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 400 and various circuits of the memory represented by the memory 420 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
  • the bus interface provides an interface.
  • the transceiver 410 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 430 may also be an interface capable of externally connecting and connecting the required devices.
  • the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 when performing operations.
  • FIG. 5 is a schematic diagram of a second structure of a user equipment.
  • the UE is used to provide other UEs with a resource set capable of resource selection.
  • the user equipment includes:
  • the processor 500 is configured to read a program in the memory 520 and execute the following processes:
  • the UE When the UE performs V2X communication, determine whether the UE itself needs transmission resources provided by other UEs;
  • the resource-assisted allocation UE When determining that the UE itself needs transmission resources provided by other UEs, use the resources to allocate the transmission resources allocated by the UE, and / or select the transmission resources in the resource-assisted allocation resource-provided transmission resource set provided by the UE, where the resource allocation
  • the UE is a UE that allocates transmission resources to other UEs
  • the resource-assisted allocation UE is a UE that provides other UEs with a resource set capable of resource selection
  • the transceiver 510 is configured to receive and send data under the control of the processor 500.
  • the resource allocation UE or the resource assisted allocation UE is determined in one or a combination of the following ways:
  • the UEs are resource allocation UEs or resource assisted allocation UEs.
  • the determination is performed in one or a combination of the following ways:
  • the network side determines that some UEs are resource allocation UEs or resource assisted allocation UEs.
  • the network side when determining a resource allocation UE or a resource assisted allocation UE according to the network side configuration or network side authorization, the network side sends configuration information or authorization information to the UE for the UE to determine whether other UEs are resource allocation UEs or resource assisted allocation UEs. .
  • the resource allocation UE determines that the transmission resources allocated to other UEs do not overlap in the time domain.
  • the resource assisted allocation UE determines a resource set that can be provided to other UEs for resource selection, which is a resource pool and / or BWP, or is allocated by allocating a time domain resource pattern on the determined resource pool and / or BWP Resource or time domain resource collection.
  • the resource pool and / or BWP provided by the resource assisted allocation UE for resource allocation of the UE to be allocated for assisted allocation can be orthogonal in the time domain.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 500 and various circuits of the memory represented by the memory 520 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
  • the bus interface provides an interface.
  • the transceiver 510 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 530 may also be an interface capable of externally connecting and connecting the required devices.
  • the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 when performing operations.
  • An embodiment of the present application further provides a resource allocation device, including:
  • An identity determination module is used to determine whether the UE itself is a resource allocation UE or a resource assisted allocation UE when the UE is performing V2X communication, wherein the resource allocation UE is a UE that allocates transmission resources to other UEs, and the resource assisted allocation UE is to other UEs UE providing a resource set capable of resource selection;
  • a resource allocation module is configured to allocate resources to other UEs when determining that the UE is a resource allocation UE according to service needs and the situation of other UEs, and to provide other UEs with resource selection options when determining that the UEs are resource-assisted allocation UEs. Resource collection.
  • An embodiment of the present application further provides a device for receiving resource allocation, including:
  • a resource determining module configured to determine whether the UE itself needs transmission resources provided by other UEs when the UE is performing V2X communication;
  • a resource receiving module configured to use a resource to allocate a transmission resource allocated by the UE when determining that the UE itself needs a transmission resource provided by another UE, and / or select transmission from a set of transmission resources provided by the resource assisted allocation UE that can perform resource selection Resources, where a resource allocation UE is a UE that allocates transmission resources to other UEs, and a resource assisted allocation UE is a UE that provides other UEs with a resource set capable of resource selection.
  • each part of the device described above is divided into various modules or units according to functions.
  • the functions of each module or unit may be implemented in the same software or hardware.
  • the embodiments of the present application provide how to determine a resource allocation UE or a resource assisted allocation UE; how the resource allocation UE / resource assisted allocation UE determines an available resource pool and / or BWP set or how to select a resource pool and / or BWP for common allocation of resources; resource allocation UE / resource assisted allocation UE available resource set or sending resource for UE to be allocated resource / UE to be allocated resource, available resource set or sending resource Non-overlapping resources in the time domain.
  • the 3GPP Release 14 and Release 15 LTE-V2X pass-through communication only supports broadcast communication.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, this application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) containing computer-usable program code.
  • a computer-usable storage media including, but not limited to, disk storage, optical storage, and the like
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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

Abstract

L'invention concerne un procédé, un dispositif et un appareil pour l'attribution de ressources et la réception d'attribution de ressources. Le procédé comprend les étapes suivantes : un équipement d'utilisateur détermine, pendant une communication V2X, si l'équipement d'utilisateur lui-même est un équipement d'utilisateur d'attribution de ressources ou un équipement d'utilisateur d'attribution de ressources auxiliaire, l'équipement d'utilisateur d'attribution de ressources étant un équipement d'utilisateur qui attribue une ressource de transmission à d'autres équipements d'utilisateur, et l'équipement d'utilisateur d'attribution de ressources auxiliaire étant un équipement d'utilisateur qui fournit à d'autres équipements d'utilisateur un ensemble de ressources pour une sélection de ressources ; et lorsqu'il est déterminé que l'équipement d'utilisateur lui-même est l'équipement d'utilisateur d'attribution de ressources en fonction des exigences de service et de l'état d'autres équipements d'utilisateur, l'équipement d'utilisateur attribue une ressource aux autres équipements d'utilisateur, et lorsqu'il est déterminé que l'équipement d'utilisateur lui-même est l'équipement d'utilisateur d'attribution de ressources auxiliaire, l'équipement d'utilisateur fournit l'ensemble de ressources aux autres équipements d'utilisateur pour une sélection de ressources. Au moyen de la présente invention, l'interférence peut être réduite, une influence de semi-duplex peut être efficacement empêchée, et la fiabilité de la communication de liaison directe V2X peut être améliorée.
PCT/CN2019/093864 2018-09-27 2019-06-28 Procédé, dispositif et appareil pour l'attribution de ressources et la réception d'attribution de ressources WO2020062999A1 (fr)

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