WO2020063747A1 - 由用户设备执行的方法以及用户设备 - Google Patents

由用户设备执行的方法以及用户设备 Download PDF

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Publication number
WO2020063747A1
WO2020063747A1 PCT/CN2019/108157 CN2019108157W WO2020063747A1 WO 2020063747 A1 WO2020063747 A1 WO 2020063747A1 CN 2019108157 W CN2019108157 W CN 2019108157W WO 2020063747 A1 WO2020063747 A1 WO 2020063747A1
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Prior art keywords
user equipment
base station
csi
transmission mode
resource
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PCT/CN2019/108157
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English (en)
French (fr)
Inventor
赵毅男
刘仁茂
山田升平
Original Assignee
夏普株式会社
赵毅男
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Application filed by 夏普株式会社, 赵毅男 filed Critical 夏普株式会社
Priority to EP19865305.7A priority Critical patent/EP3860024B1/en
Priority to US17/280,432 priority patent/US11678212B2/en
Priority to CA3114479A priority patent/CA3114479A1/en
Publication of WO2020063747A1 publication Critical patent/WO2020063747A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a method performed by a user equipment, a method performed by a base station, and a corresponding user equipment.
  • V2X stands for Vehicle to everything, and hopes to realize the interaction between the vehicle and all physical information that may affect the vehicle. The purpose is to reduce accidents, slow down traffic congestion, reduce environmental pollution and provide other information services.
  • V2X mainly includes 4 aspects: 1.V2V, Vehicle to Vehicle, that is, vehicle-vehicle communication; 2.V2P, Vehicle to Peestestrian, that is, the vehicle sends a warning to pedestrians or non-motor vehicles; 3.V2N, Vehicle to Network, that is, vehicle Connect to mobile network; 4.V2I, Vehicle to Infrastructure, that is, communication between vehicles and road infrastructure.
  • V2X Stage 1 introduces a new D2D communication interface, called PC5 interface.
  • the PC5 interface is mainly used to solve the communication problem of cellular car networking in high-speed (up to 250 km / h) and high-node density environments. Vehicles can interact with information such as position, speed, and direction through the PC5 interface, that is, vehicles can communicate directly through the PC5 interface.
  • the second phase of V2X belongs to the LTE Release15 research category.
  • the main features introduced include high-order 64QAM modulation, V2X carrier aggregation, short TTI, and a feasibility study of transmit diversity.
  • the corresponding third-phase V2X feasibility study project based on 5G NR network technology was approved.
  • the NR V2X project includes design goals to support unicast, multicast, and broadcast.
  • Unicast refers to the communication between a transmitting user equipment (UE) and a single receiving user equipment.
  • Multicast generally indicates that a group of UEs are assigned the same ID, and the UEs communicate within the group. Broadcasting is widely used in scenarios such as base stations sending system messages to UEs in a cell in cellular communications. In LTE and NR communications, base station and UE-level communications use unicast. The following data communication is used as an example.
  • the data channel PDSCH is scrambled by the UE-specific C-RNTI to implement unicast communication at the physical layer.
  • unicast communication in order to better reflect the quality of the downlink channel and improve the reliability of transmission, unicast communication usually includes CSI reporting and HARQ retransmission mechanisms.
  • Release 14/15 LTE V2X currently only supports broadcast communication between UEs, that is, control information and data sent by one UE can be received by other UEs and decoded correctly.
  • the CSI reporting mechanism and HARQ retransmission mechanism in V2X need to be specifically designed.
  • Wireless channel conditions are constantly changing.
  • the UE in order to better adapt to changes in wireless channels, the UE can report downlink channel quality information to the base station via CSI, so that the base station can select more reliable MCS for the UE and more accurate time-frequency resources.
  • CSI indicates channel state information, and is composed of CQI, PMI, and RI. This disclosure does not specifically limit the content included in the CSI, and uses CSI reporting to uniformly indicate.
  • the base station configures CSI-RS resources at the UE level through RRC signaling. The base station dynamically triggers whether the UE reports aperiodic CSI in the uplink scheduling grant sent to the UE.
  • the UE obtains CSI information by measuring the received downlink reference signal (CRS in LTE and CSI-RS in NR), and reports the CSI to the base station according to the resources indicated by the base station.
  • the base station configures PUCCH resources for the UE for CSI reporting;
  • the base station instructs the UE to use the PUSCH resources for CSI reporting.
  • the base station indicates the aperiodic CSI reporting type triggered by the UE through the CSI request field in the uplink scheduling grant, and instructs the UE to report CSI through the beta offset indicator field and the UL-SCH indicator Available resources.
  • the base station takes into consideration the channel quality reported by the UE when performing downlink scheduling.
  • HARQ stands for hybrid automatic retransmission, which can provide error correction function and achieve fast retransmission. It is widely used in wireless data communication, and will not be repeated here.
  • FIG. 1 shows the basic process of LTE V2X direct communication.
  • UE1 sends control information (SCI format 1) to UE2, which is carried by the physical layer channel PSCCH.
  • SCI format 1 contains scheduling information for PSSCH, such as time and frequency domain resources, MCS, and so on.
  • the PSSCH carries data (sidelink data: edge link data) sent by UE1 to UE2 in FIG. 1.
  • the PSCCH occupies one subframe in the time domain and two consecutive PRBs in the frequency domain.
  • a pre-defined value 510 is used in the initialization process of the scrambling sequence.
  • the PSCCH can carry SCI format 1, including at least PSSCH time-frequency domain resource information, such as the frequency domain resource indicator field, indicating the starting sub-channel number and the number of consecutive sub-channels corresponding to the PSSCH of the PSCCH.
  • the PSSCH also occupies one subframe in the time domain, and is in the same subframe as the corresponding PSCCH frequency reuse (FDM).
  • the PSSCH is in the form of a sub-channel in the frequency domain.
  • the sub-channel is n subCHsize consecutive PRBs in the frequency domain.
  • the n subCHsize is configured by RRC parameters.
  • the number of sub-channels is indicated by the frequency domain resource indicator field of SCI format 1. .
  • FIG. 2 shows a resource allocation scheme for LTE V2X.
  • LTE V2X includes two resource allocation schemes, which are called resource allocation based on base station scheduling (Transmission mode 3) and resource allocation based on UE sensing (Transmission mode 4).
  • the base station can configure the UE's resource allocation scheme through the UE-level RRC signaling SL-V2X-ConfigDedicated, or the UE's transmission mode.
  • Resource allocation based on base station scheduling When configured as scheduled-r14 in SL-V2X-ConfigDedicated, it indicates that the UE is configured as a transmission mode based on base station scheduling.
  • the base station configures SL-V-RNTI through RRC, and sends an uplink scheduling grant UL grant to the UE through PDCCH (DCI format 5A).
  • the uplink scheduling grant includes at least information such as a frequency domain resource indication of the PSSCH.
  • the UE uses the PSSCH frequency domain resource indication field in the uplink scheduling grant as the frequency domain resource scheduling information of the PSSCH in the SCI format 1.
  • UE-sensing-based resource allocation When configured as ue-Selected-r14 in SL-V2X-ConfigDedicated, it indicates that the UE is configured as a UE-sensing-based transmission mode. In the above transmission mode, the base station configures an available transmission resource pool, and the UE determines the transmission resources of the PSCCH and PSSCH in the transmission resource pool according to certain criteria (such as RSRP, etc.), and sends the PSCCH and PSSCH according to the flow in FIG. This patent does not repeat the criteria for determining available resources by the UE.
  • Non-Patent Document 1 RP-181480, New SID Proposal: Study on NR V2X
  • the present disclosure provides a method performed by a user equipment and a user equipment, which is a method and a user equipment that can be performed by a user equipment based on V2X of a 5G NR network technology.
  • a method performed by a user equipment is provided.
  • the user equipment is a transmitting user equipment, and the method includes: obtaining configuration information of a base station, where the configuration information includes a transmission mode of the user equipment.
  • the method according to the first aspect of the embodiments of the present disclosure further comprises: sending a PSCCH including control information, the control information including an identifier reported by CSI or an indication of a transmission mode of the user equipment, and / or a trigger of CSI reporting And / or an indication of a CSI reporting resource, and / or an indication of a CSI-RS measurement resource.
  • the identifier reported by the CSI includes reporting the CSI to the base station or reporting the CSI to the user equipment.
  • the transmission mode configuration includes a transmission mode based on base station scheduling, or a transmission mode based on UE perception, or a transmission mode based on base station assisted scheduling, or Transmission mode.
  • a method performed by a user equipment includes: obtaining CSI measurement configuration information of a base station, where the CSI measurement configuration information includes a CSI report identifier.
  • the CSI measurement configuration information includes a CSI report identifier.
  • a list and / or a set of resources reported by CSI where the list of CSI reporting identifiers includes one or more CSI reporting identifiers.
  • the method according to the second aspect of the embodiments of the present disclosure further comprises: using the first CSI reporting resource or the second CSI reporting resource for CSI reporting according to the CSI measurement configuration information.
  • the first CSI reporting resource and the second CSI reporting resource are indicated by the base station, or are indicated by a PSCCH sent by a sending user equipment.
  • the CSI reported by the user equipment includes an ID of the user equipment, and / or an ID of a transmitting user equipment, and / or the user equipment directly communicates with the transmitting user equipment. ID of the communication connection.
  • a method performed by user equipment is provided.
  • the user equipment is sending user equipment, and the method includes: obtaining configuration information of a base station, where the configuration information includes whether to report a received CSI report And if the obtained instruction is an instruction to report the received CSI report to the base station, the resource indicated by the base station is used to report the CSI.
  • a method performed by a user equipment is provided.
  • the user equipment is a transmitting user equipment, and the method includes: obtaining configuration information of a base station, where the configuration information includes a transmission mode of the user equipment. And if the transmission mode of the user equipment included in the configuration information is a transmission mode scheduled by a base station or a transmission mode based on a base station-assisted scheduling, reporting the received CSI report to the base station.
  • a user equipment including: a processor; and a memory storing instructions; wherein the instructions are executed by the processor according to the first aspect to when executed by the processor.
  • FIG. 1 is a diagram schematically showing a basic process of LTE V2X direct communication in the existing 3GPP standard specification.
  • FIG. 2 is a diagram schematically showing a resource allocation scheme of LTE V2X in the existing 3GPP standard specification.
  • FIG. 3A is a diagram schematically illustrating a basic process of a method performed by a transmitting user equipment according to Embodiment 1 of the present disclosure.
  • FIG. 3B is a flowchart schematically illustrating a method performed by a sending user equipment according to Embodiment 1 of the present disclosure.
  • FIG. 4A is a diagram schematically showing a basic process of a method performed by a receiving user equipment according to Embodiment 2 of the present disclosure.
  • FIG. 4B is a flowchart schematically illustrating a method performed by a receiving user equipment according to Embodiment 2 of the present disclosure.
  • 5A is a diagram schematically showing a basic process of a method performed by a transmitting user equipment according to Embodiment 3 of the present disclosure.
  • 5B is a flowchart schematically illustrating a method performed by a sending user equipment according to Embodiment 3 of the present disclosure.
  • FIG. 6 is a block diagram schematically showing a user equipment UE involved in the present disclosure.
  • the following uses the 5G mobile communication system and its subsequent evolved versions as an example application environment to describe in detail various embodiments according to the present disclosure.
  • the present disclosure is not limited to the following embodiments, but can be applied to more other wireless communication systems, such as a communication system after 5G and a 4G mobile communication system before 5G.
  • 3GPP 3rd Generation Partnership Project, Third Generation Partnership Project
  • LTE Long Term Evolution, Long Term Evolution Technology
  • PDCCH Physical Downlink Control Channel
  • DCI Downlink ControlInformation, downlink control information
  • PDSCH Physical Downlink Shared Channel
  • UE User Equipment
  • eNB evolved NodeB, evolved base station
  • gNB NR base station
  • C-RNTI Cell Radio Network Temporary Identifier
  • HARQ Hybrid, Automatic, Repeat, Request, Hybrid Automatic Repeat Request
  • CSI-RS CSI-Reference Signal, channel state measurement reference signal
  • CRS Cell Reference Signal
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • UL-SCH Uplink, Shared Channel
  • PSCCH Physical, Sidelink, Control Channel, Physical Edge Connection Control Channel
  • MCS Modulation and Coding Scheme, modulation and coding scheme
  • PRB Physical Resource Block
  • PSSCH Physical, Sidelink, Shared Channel, physical edge connection shared channel
  • FDM Frequency, Division, Multiplexing, Frequency Division Multiplexing
  • PSDCH Physical, Sidelink, Discovery Channel, Physical Edge Connection Discovery Channel
  • PSBCH Physical, Sidelink, Broadcast Channel, Physical edge connection broadcast channel
  • Unicast communication means communication between a transmitting user equipment (UE) and a single receiving user equipment.
  • Multicast communication generally indicates that a group of UEs are assigned the same ID, and the UEs communicate within the group.
  • base station and UE-level communications use unicast. The following data communication is used as an example.
  • the data channel PDSCH is scrambled by the UE-specific C-RNTI to implement unicast communication at the physical layer. It is worth pointing out that, in order to better reflect the quality of the downlink channel and improve the reliability of transmission, unicast communication usually includes CSI reporting and HARQ retransmission mechanisms. Release 14/15 LTE V2X currently only supports broadcast communication between UEs, that is, control information and data sent by one UE can be received by other UEs and decoded correctly. For NR V2X, in order to enable unicast communication, as described above, the CSI reporting mechanism and HARQ retransmission mechanism in V2X need to be specifically designed.
  • Wireless channel conditions are constantly changing.
  • the UE in order to better adapt to changes in wireless channels, the UE can report downlink channel quality information to the base station via CSI, so that the base station can select more reliable MCS for the UE and more accurate time-frequency resources.
  • CSI indicates channel state information, and is composed of CQI, PMI, and RI. This disclosure does not specifically limit the content included in the CSI, and uses CSI reporting to uniformly indicate.
  • the base station configures CSI-RS resources at the UE level through RRC signaling. The base station dynamically triggers whether the UE reports aperiodic CSI in the uplink scheduling grant sent to the UE.
  • the UE obtains CSI information by measuring the received downlink reference signal (CRS in LTE and CSI-RS in NR), and reports the CSI to the base station according to the resources indicated by the base station.
  • the base station configures PUCCH resources for the UE for CSI reporting;
  • the base station instructs the UE to use the PUSCH resources for CSI reporting.
  • the base station indicates the aperiodic CSI reporting type triggered by the UE through the CSI request field in the uplink scheduling grant, and instructs the UE to report CSI through the beta offset indicator field and the UL-SCH indicator Available resources.
  • the base station takes into consideration the channel quality reported by the UE when performing downlink scheduling.
  • HARQ stands for hybrid automatic retransmission, which can provide error correction function and achieve fast retransmission. It is widely used in wireless data communication, and will not be repeated here.
  • FIG. 1 shows the basic process of LTE V2X direct communication.
  • UE1 sends control information (SCI format 1) to UE2, which is carried by the physical layer channel PSCCH.
  • SCI format 1 contains scheduling information for PSSCH, such as time and frequency domain resources, MCS, and so on.
  • the PSSCH carries data (sidelink data: edge link data) sent by UE1 to UE2 in FIG. 1.
  • the PSCCH occupies one subframe in the time domain and two consecutive PRBs in the frequency domain.
  • a pre-defined value 510 is used in the initialization process of the scrambling sequence.
  • the PSCCH can carry SCI format 1, including at least PSSCH time-frequency domain resource information, such as the frequency domain resource indicator field, indicating the starting sub-channel number and the number of consecutive sub-channels corresponding to the PSSCH of the PSCCH.
  • the PSSCH occupies one subframe in the time domain, and is in the same subframe as the corresponding PSCCH frequency division multiplexing (FDM).
  • the PSSCH is in the form of a sub-channel in the frequency domain.
  • the sub-channel is n subCHsize consecutive PRBs in the frequency domain.
  • the n subCHsize is configured by RRC parameters.
  • the number of sub-channels is indicated by the frequency domain resource indicator field of SCI format 1. .
  • FIG. 2 shows two resource allocation schemes of LTE V2X, which are called resource allocation based on base station scheduling (Transmission mode 3) and resource allocation based on UE sensing (Transmission mode 4).
  • the base station can configure the UE's resource allocation scheme through the UE-level RRC signaling SL-V2X-ConfigDedicated, or the UE's transmission mode.
  • SL-V2X-ConfigDedicated When RRC signaling SL-V2X-ConfigDedicated is configured as scheduled-r14, it indicates that the UE is configured as a transmission mode based on base station scheduling.
  • the base station configures SL-V-RNTI through RRC, and sends an uplink scheduling grant UL grant to the UE through PDCCH (DCI format 5A).
  • the uplink scheduling grant includes at least information such as a frequency domain resource indication of the PSSCH.
  • the UE uses the PSSCH frequency domain resource indication field in the uplink scheduling grant as the frequency domain resource scheduling information of the PSSCH in the SCI format 1.
  • Sensing-based resource allocation scheme When configured as ue-Selected-r14 in the RRC signaling SL-V2X-ConfigDedicated, it indicates that the UE is configured as a UE-sensing-based transmission mode. In the above transmission mode, the base station configures an available transmission resource pool, and the UE determines the transmission resources of the PSCCH and PSSCH in the transmission resource pool according to certain criteria (such as RSRP, etc.), and sends the PSCCH and PSSCH according to the flow in FIG. 1. This disclosure does not repeat the criteria for the UE to determine available resources.
  • the sending UE refers to the UE that sends the PSCCH and PSSCH, and the receiving UE indicates the UE that receives the PSCCH and PSSCH.
  • 3A is a diagram illustrating a basic process of a method performed by a transmitting user equipment according to Embodiment 1 of the present disclosure.
  • 3B is a flowchart illustrating a method performed by a transmitting user equipment according to Embodiment 1 of the present disclosure.
  • the steps performed by the sending user equipment include:
  • the sending user equipment obtains the configuration information of the base station.
  • the configuration information of the base station may be sent through high-level RRC signaling.
  • the configuration information includes a transmission mode configuration of the sending user equipment, and / or an indication of a CSI-RS measurement resource set, and / or an identifier reported by the CSI.
  • the sending user equipment sends a PSCCH according to the configuration information of the base station.
  • the PSCCH carries control information.
  • the control information may include an identification of the CSI report or an indication of a transmission mode for sending the user equipment, and / or an indication of a CSI report trigger, and / or an indication of a specific CSI report resource, and / or an indication of a specific CSI-RS measurement resource .
  • the transmission mode configuration of the sending user equipment may include a transmission mode based on base station scheduling, or a transmission mode based on UE perception, or a transmission mode based on base station assisted scheduling, or based on UE assisted scheduling.
  • the transmission mode based on the base station-assisted scheduling may indicate that the base station instructs to send some transmission parameters of the user equipment, such as MCS. Other transmission parameters are determined based on the perception of the sending user equipment.
  • the transmission mode based on UE-assisted scheduling may indicate a transmission mode in which group leader user equipment sends direct communication scheduling information to group member user equipment in multicast direct communication.
  • the CSI-RS measurement resource configured by the base station may be a CSI-RS transmitted by the user equipment, or an SRS, or a DMRS.
  • the indication triggered by the CSI report may be whether to report the CSI or an indication of the type of the CSI report.
  • the specific CSI-RS measurement resource indication may be a CSI-RS or SRS or DMRS resource ID transmitted by the sending user equipment, or a specific time-frequency domain indication of the measurement resource.
  • one implementation manner of the CSI reporting identifier is a 1-bit indication field, where 0 means reporting to the base station and 1 means reporting to the sending user equipment, and vice versa.
  • the identifier of CSI reporting in step S101 may also be an indication of whether to enable reporting of CSI to the base station or sending user equipment.
  • the indication of the transmission mode of the sending user equipment indicates that the specific transmission mode of the sending user equipment may be a transmission mode based on base station scheduling, a transmission mode based on UE perception, or a transmission mode based on base station or UE-assisted scheduling.
  • the CSI reporting identifier or transmission mode may generate an implicit indication through PSCCH CRC scrambling or PSCCH scrambling initialization sequence, which is not specifically limited in this embodiment.
  • the specific CSI reporting resource indication field may indicate a PUCCH resource or a PUSCH resource, and may also indicate a resource of a PSCCH or a sidelink feedback channel or a PSSCH.
  • the sending user equipment may also send a PSDCH or a PSBCH.
  • the PSDCH or PSBCH may include an identifier reported by the CSI or an indication of a transmission mode for sending the user equipment.
  • the sending user equipment indicates the identity reported by the CSI through the upper layer signaling or transmits the transmission mode of the user equipment.
  • 4A is a diagram illustrating a basic process of a method performed by a receiving user equipment according to Embodiment 2 of the present disclosure.
  • FIG. 4B is a flowchart illustrating a method performed by a receiving user equipment according to Embodiment 2 of the present disclosure.
  • the steps performed by the receiving user equipment include:
  • the receiving user equipment acquires the CSI measurement configuration information of the base station.
  • the base station may configure the CSI measurement information through high-level RRC signaling.
  • the CSI measurement configuration information may include a list of CSI reporting identifiers and / or a set of resources reported by the CSI.
  • the CSI report identifier list may be a set, and includes one or more CSI report identifiers of sidelink connections.
  • step S202 if the CSI reporting identifier indicates to report to the base station, the receiving user equipment uses the CSI reporting resource indicated by the base station for CSI reporting; optionally, the CSI reporting resource indicated in the PSCCH transmitted by the user equipment may be used for CSI reporting; If the CSI reporting identifier indicates reporting to the sending user equipment, the receiving user equipment uses the CSI reporting resources indicated in the PSCCH transmitted by the sending user equipment to report the CSI; optionally, the CSI reporting resources indicated by the base station may be used for the CSI reporting.
  • step S201 another possible implementation manner of the CSI reporting identifier is to transmit the transmission mode of the user equipment, or if the base station is configured to report the CSI resources to the base station, it means reporting to the base station; The base station reports the CSI resources, which means reporting to the sending user equipment.
  • the receiving user equipment may obtain the CSI indication information by sending a PSCCH sent by the user equipment.
  • the CSI indication information may include a CSI reporting identifier or a transmission mode for sending the user equipment, and / or a resource reported by the CSI.
  • the CSI reporting resource configured by the base station may be a PUCCH resource or a PUSCH resource, or may be a PSCCH resource or a PSSCH resource or a resource of a sidelink feedback channel.
  • the CSI reported by the receiving user equipment may include the ID of the receiving and / or sending user equipment, and / or the ID of the direct communication connection of the receiving and sending user equipment.
  • the optional solution of the second embodiment also includes that when the receiving user equipment is in the RRC Idle or Inactive state, if the base station instructs or sends the user equipment to instruct the CSI reporting identifier to report to the base station, the receiving user equipment may enter the RRC connected state, such as initiating random access Wait.
  • the sending user equipment triggers CSI reporting
  • the receiving user equipment always reports the CSI to the sending user equipment.
  • 5A is a diagram illustrating a basic process of a method performed by a transmitting user equipment according to Embodiment 3 of the present disclosure.
  • 5B is a flowchart illustrating a method performed by a transmitting user equipment according to Embodiment 3 of the present disclosure.
  • the steps performed by the sending user equipment include:
  • the sending user equipment obtains the configuration information of the base station.
  • the base station may send the configuration information through high-level RRC signaling.
  • the configuration information includes an indication of whether to report the received CSI report.
  • step S302 if the base station instructs the sending user equipment to report the received CSI report to the base station, the sending user equipment uses the resources indicated by the base station to report the CSI to the base station.
  • the resource indicated by the base station may be a PUCCH resource or a PUSCH resource.
  • an implementation manner is that the configuration information includes a 1-bit field, where 1 indicates that the received CSI report is enabled; 0 in the configuration information indicates that the report is disabled. To the CSI report and vice versa.
  • the CSI reported by the sending user equipment to the base station may include the ID of the receiving user equipment and / or the ID of the direct communication connection between the sending user equipment and the receiving user equipment.
  • the base station configures the transmission mode for transmitting the user equipment to be a transmission mode based on the base station scheduling, or the transmission mode based on the base station assisted scheduling
  • the sending user equipment reports using the resources indicated by the base station Received CSI report.
  • the CSI report reported by the sending user equipment may include the ID of the receiving user equipment and / or the ID of the direct communication connection between the sending user equipment and the receiving user equipment.
  • the base station sends an uplink scheduling grant to the sending user equipment, where the uplink scheduling grant includes a triggering indication of CSI reporting or an indication of a CSI reporting type, and then the sending user equipment reports CSI to the base station.
  • the present disclosure provides a method that can be performed by a user equipment based on V2X based on 5G NR network technology.
  • FIG. 6 is used to explain a user equipment that can perform the foregoing method performed by the user equipment described in detail in the present disclosure as a modification.
  • FIG. 6 is a block diagram showing a user equipment UE according to the present disclosure.
  • the user equipment UE80 includes a processor 801 and a memory 802.
  • the processor 801 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 802 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memories.
  • the memory 802 stores program instructions. When the instruction is executed by the processor 801, the method described in detail in the present disclosure and executed by the user equipment can be executed.
  • the method and related equipment of the present disclosure have been described above in connection with the preferred embodiments. Those skilled in the art can understand that the methods shown above are only exemplary, and the embodiments described above can be combined with each other without any contradiction. The methods of the present disclosure are not limited to the steps and sequences shown above.
  • the network node and user equipment shown above may include more modules, for example, may also include modules that can be developed or developed in the future and can be used for base stations, MMEs, or UEs, and so on.
  • the various identifications shown above are exemplary only and not limiting, and the present disclosure is not limited to specific cells as examples of these identifications. Those skilled in the art can make many variations and modifications based on the teachings of the illustrated embodiments.
  • the above-mentioned embodiments of the present disclosure may be implemented by software, hardware, or a combination of both software and hardware.
  • the various components inside the base station and user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, and programmable processing Devices, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and more.
  • DSP digital signal processing
  • ASICs application-specific integrated circuits
  • FPGAs field-programmable gate arrays
  • CPLDs programmable logic devices
  • base station may refer to mobile communication data and control switching centers with larger transmission power and wider coverage area, including functions such as resource allocation scheduling, data receiving and sending.
  • User equipment may refer to a user mobile terminal, for example, a terminal device that includes a mobile phone, a notebook, and the like that can perform wireless communication with a base station or a micro base station.
  • the embodiments of the present disclosure disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer-readable medium having computer program logic encoded on the computer-readable medium.
  • the computer program logic When executed on a computing device, the computer program logic provides related operations to implement The above technical solution of the present disclosure.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present disclosure.
  • This arrangement of the present disclosure is typically provided as software, code, and / or other data structures, or as one or more, provided or encoded on a computer-readable medium such as an optical medium (e.g., a CD-ROM), a floppy disk, or a hard disk.
  • Software or firmware or such a configuration may be installed on a computing device, so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present disclosure.
  • each functional module or individual feature of the base station equipment and terminal equipment used in each of the above embodiments may be implemented or executed by a circuit, which is usually one or more integrated circuits.
  • Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs) or general-purpose integrated circuits, field-programmable gate arrays (FPGAs), or other Programming logic devices, discrete gate or transistor logic, or discrete hardware components, or any combination of the above.
  • a general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine.
  • the above-mentioned general-purpose processor or each circuit may be configured by a digital circuit, or may be configured by a logic circuit.
  • the present disclosure may also use integrated circuits obtained using the advanced technologies.

Abstract

本公开提供了一种由用户设备执行的方法以及用户设备，所述方法包括：获取基站的配置信息，所述配置信息包含所述用户设备的传输模式配置、和/或CSI-RS测量资源集合的指示、和/或CSI上报的标识。

Description

由用户设备执行的方法以及用户设备 技术领域
本公开涉及无线通信技术领域，具体涉及由用户设备执行的方法、由基站执行的方法以及相应的用户设备。
背景技术
2015年6月，在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)RAN#68次全会上，批准了基于蜂窝网络技术的V2X可行性研究课题。V2X表示Vehicle to everything，希望实现车辆与一切可能影响车辆的实体信息交互，目的是减少事故发生，减缓交通拥堵，降低环境污染以及提供其他信息服务。V2X主要包含4个方面：1.V2V，Vehicle to Vehicle，即车-车通信；2.V2P，Vehicle to Pedestrian，即车给行人或非机动车发送警告；3.V2N，Vehicle to Network，即车辆连接移动网络；4.V2I，Vehicle to Infrastructure，即车辆与道路基础设施等通信。
3GPP将V2X的研究与标准化工作分为3个阶段。第一阶段于2016年9月完成，主要聚焦于V2V，基于LTE Release 12和Release 13 D2D(Device to Device，设备间直接通信，也可称为sidelink边缘连接)，即邻近通信技术制定。V2X stage 1引入了一种新的D2D通信接口，称为PC5接口。PC5接口主要用于解决高速(最高250公里/小时)及高节点密度环境下的蜂窝车联网通信问题。车辆可以通过PC5接口进行诸如位置、速度和方向等信息的交互，即车辆间可通过PC5接口进行直接通信。V2X第二阶段归属于LTE Release 15研究范畴，引入的主要特性包含高阶64QAM调制、V2X载波聚合、短TTI，同时包含发射分集的可行性研究。在2018年6月3GPP RAN#80次全会上，相应的第三阶段基于5G NR网络技术的V2X可行性研究课题(参见非专利文献1)获得批准。
NR V2X课题中包含支持单播、组播以及广播的设计目标。单播表示一个发送用户设备(UE)和单个接收用户设备之间的通信。组播一般表 示一组UE分配了相同的ID，UE在组内进行通信。广播广泛应用于蜂窝通信中基站向小区内UE发送系统消息等场景。在LTE和NR通信中，基站和UE级的通信采用单播形式。以下行数据通信为例，数据信道PDSCH采用UE特有的C-RNTI进行加扰，以实现物理层的单播通信。值得指出的是，为了更好地反映下行信道的质量以及提高传输的可靠性，在单播通信中通常包含CSI上报以及HARQ重传机制。Release 14/15 LTE V2X课题中当前仅支持UE之间的广播通信，即一个UE发送的控制信息和数据可以被其他多个UE接收并正确译码。对于NR V2X，为使能单播通信，如上文所述，需要具体设计V2X中的CSI上报机制和HARQ重传机制。
无线信道条件通常是在不断变化的。在LTE和NR通信中，为了更好地适应无线信道的变化，UE可以通过CSI将下行信道质量信息上报给基站，以便基站为UE选择更加可靠的MCS，以及选择更准确的时频资源等信息。CSI表示信道状态信息，由CQI、PMI、RI组成。本公开对CSI包含的内容不做具体限制，采用CSI上报统一表示。NR中，基站通过RRC信令UE级配置CSI-RS资源。基站在发送给UE的上行调度许可中动态触发UE是否上报非周期性CSI。UE通过测量接收到的下行参考信号(LTE中为CRS，NR中为CSI-RS)获取CSI信息，并根据基站指示的资源上报CSI给基站。对于周期性CSI上报，基站为UE配置PUCCH资源用于CSI上报；对于非周期性CSI上报，基站指示UE用于CSI上报的PUSCH资源。具体地，在5G NR非周期性CSI上报中，基站在上行调度许可中通过CSI request域指示UE触发的非周期CSI上报类型，并且通过beta offset indicator域和UL-SCH indicator域指示UE上报CSI的可用资源。基站在进行下行调度时会将UE上报的信道质量考虑在内。HARQ表示混合自动重传，可以提供纠错功能并且实现快速重传，在无线数据通信中广泛应用，此处不做赘述。
图1表示LTE V2X直接通信的基本过程。UE1向UE2发送控制信息(SCI format 1)，由物理层信道PSCCH携带。SCI format 1包含PSSCH的调度信息，例如时域和频域资源、MCS等。其中，PSSCH携带图1中UE1向UE2发送的数据(sidelink data：边缘连接数据)。
1)PSCCH在时域上占据一个子帧，频域上占据两个连续的PRB。加扰序列的初始化过程中采用预定义数值510。PSCCH中可携带SCI format 1，包含至少PSSCH的时频域资源信息，如频域资源指示域，指示该PSCCH对应PSSCH的起始sub-channel编号和连续sub-channel的数目。
2)PSSCH在时域上同样占据一个子帧，和对应的PSCCH频率复用(FDM)在相同的子帧上。PSSCH在频域上为sub-channel的形式，sub-channel在频域上为n subCHsize个连续的PRB，n subCHsize由RRC参数配置，sub-channel的数目由SCI format 1的频域资源指示域指示。
图2表示LTE V2X的资源分配方案。LTE V2X中包含两种资源分配方案，分别称为基于基站调度的资源分配(Transmission mode 3)和基于UE感知(sensing)的资源分配(Transmission mode 4)。LTE V2X中，当存在eNB网络覆盖的情况下，基站可通过UE级的RRC信令SL-V2X-ConfigDedicated配置该UE的资源分配方案，或称为该UE的传输模式。
1)基于基站调度的资源分配：当SL-V2X-ConfigDedicated中配置为scheduled-r14时，表示该UE被配置为基于基站调度的传输模式。基站通过RRC配置SL-V-RNTI，并通过PDCCH(DCI format 5A)向UE发送上行调度许可UL grant。上述上行调度许可中至少包含PSSCH的频域资源指示等信息。UE成功监听SL-V-RNTI加扰的PDCCH后，将上行调度许可中的PSSCH频域资源指示域作为SCI format 1中PSSCH的频域资源调度信息。
2)基于UE sensing的资源分配：SL-V2X-ConfigDedicated中配置为ue-Selected-r14时表示该UE被配置为基于UE sensing的传输模式。在上述传输模式中，基站配置可用的传输资源池，UE根据一定准则(如RSRP等)在传输资源池中确定PSCCH和PSSCH的发送资源，按照图1中的流程发送PSCCH和PSSCH。本专利对UE确定可用资源的准则不做赘述。
现有技术文献
非专利文献
非专利文献1：RP-181480，New SID Proposal：Study on NR V2X
发明内容
为了解决上述问题中的至少一部分，本公开提供了一种由用户设备执行的方法以及用户设备，是能够基于5G NR网络技术的V2X的由用户设备执行的方法以及用户设备。
根据本公开实施例的第一方面，提供一种由用户设备执行的方法，该用户设备是发送用户设备，该方法包括：获取基站的配置信息，所述配置信息包含所述用户设备的传输模式配置、和/或CSI-RS测量资源集合的指示、和/或CSI上报的标识。
根据本公开实施例的第一方面的所述方法，还包括：发送包含控制信息的PSCCH，所述控制信息包含CSI上报的标识或所述用户设备的传输模式的指示、和/或CSI上报触发的指示、和/或CSI上报资源的指示、和/或CSI-RS测量资源的指示。
根据本公开实施例的第一方面的所述方法，所述CSI上报的标识包含向所述基站上报CSI、或者向所述用户设备上报CSI。
根据本公开实施例的第一方面的所述方法，所述传输模式配置包含基于基站调度的传输模式、或者基于UE感知的传输模式、或者基于基站辅助调度的传输模式、或者基于UE辅助调度的传输模式。
根据本公开实施例的第二方面，提供一种由用户设备执行的方法，该用户设备是接收用户设备，该方法包括：获取基站的CSI测量配置信息，该CSI测量配置信息包含CSI上报标识的列表、和/或CSI上报的资源集合，所述CSI上报标识的列表包含一个或者多个CSI上报的标识。
根据本公开实施例的第二方面的所述方法，还包括：根据所述CSI测量配置信息，采用第一CSI上报资源或者第二CSI上报资源进行CSI上报。
根据本公开实施例的第二方面的所述方法，所述第一CSI上报资源和所述第二CSI上报资源由所述基站指示，或者由发送用户设备发送的 PSCCH指示。
根据本公开实施例的第二方面的所述方法，所述用户设备上报的CSI包含该用户设备的ID、和/或发送用户设备的ID、和/或该用户设备与所述发送用户设备直接通信连接的ID。
根据本公开实施例的第三方面，提供一种由用户设备执行的方法，该用户设备是发送用户设备，该方法包括：获取基站的配置信息，所述配置信息包含是否上报接收到的CSI报告的指示；以及若获取到的该指示是指示向所述基站上报接收到的所述CSI报告，则采用所述基站指示的资源来上报CSI。
根据本公开实施例的第四方面，提供一种由用户设备执行的方法，该用户设备是发送用户设备，该方法包括：获取基站的配置信息，所述配置信息包含所述用户设备的传输模式的指示；以及若所述配置信息中包含的所述用户设备的传输模式为基站调度的传输模式、或者基于基站辅助调度的传输模式，则向所述基站上报接收到的所述CSI报告。
根据本公开实施例的第五方面，提供一种用户设备，包括：处理器；以及存储器，存储有指令；其中，所述指令在由所述处理器运行时执行根据所述第一方面至所述第四方面中任一项所述的由用户设备执行的方法。
附图说明
通过下文结合附图的详细描述，本公开的上述和其它特征将会变得更加明显，其中：
图1是示意性表示现有的3GPP标准规范中LTE V2X直接通信的基本过程的图。
图2是示意性表示现有的3GPP标准规范中LTE V2X的资源分配方案的图。
图3A是示意性表示本公开实施例一的由发送用户设备执行的方法的基本过程的图。
图3B是示意性表示本公开实施例一的由发送用户设备执行的方法的流程图。
图4A是示意性表示本公开实施例二的由接收用户设备执行的方法的 基本过程的图。
图4B是示意性表示本公开实施例二的由接收用户设备执行的方法的流程图。
图5A是示意性表示本公开实施例三的由发送用户设备执行的方法的基本过程的图。
图5B是示意性表示本公开实施例三的由发送用户设备执行的方法的流程图。
图6是示意性表示本公开所涉及的用户设备UE的框图。
具体实施方式
下面结合附图和具体实施方式对本公开进行详细阐述。应当注意，本公开不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本公开没有直接关联的公知技术的详细描述，以防止对本公开的理解造成混淆。
下文以5G移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本公开的多个实施方式。然而，需要指出的是，本公开不限于以下实施方式，而是可适用于更多其它的无线通信系统，例如5G之后的通信系统以及5G之前的4G移动通信系统等。
下面描述本公开涉及的部分术语，如未特别说明，本公开涉及的术语采用此处定义。本公开给出的术语在LTE、LTE-Advanced、LTE-Advanced Pro、NR以及之后的通信系统中可能采用不同的命名方式，但本公开中采用统一的术语，在应用到具体的系统中时，可以替换为相应系统中采用的术语。
3GPP：3rd Generation Partnership Project，第三代合作伙伴计划
LTE：Long Term Evolution，长期演进技术
NR：New Radio，新无线、新空口
PDCCH：Physical Downlink Control Channel，物理下行控制信道
DCI：Downlink Control Information，下行控制信息
PDSCH：Physical Downlink Shared Channel，物理下行共享信道
UE：User Equipment，用户设备
eNB：evolved NodeB，演进型基站
gNB：NR基站
TTI：Transmission Time Interval，传输时间间隔
C-RNTI：Cell Radio Network Temporary Identifier，小区无线网络临时标识
CSI：Channel State Indicator，信道状态指示
HARQ：Hybrid Automatic Repeat Request，混合自动重传请求
CSI-RS：CSI-Reference Signal，信道状态测量参考信号
CRS：Cell Reference Signal，小区级参考信号
PUCCH：Physical Uplink Control Channel，物理上行控制信道
PUSCH：Physical Uplink Shared Channel，物理上行共享信道
UL-SCH：Uplink Shared Channel，上行共享信道
Sidelink：边缘连接
SCI：Sidelink Control Information，边缘连接控制信息
PSCCH：Physical Sidelink Control Channel，物理边缘连接控制信道
MCS：Modulation and Coding Scheme，调制编码方案
PRB：Physical Resource Block，物理资源块
PSSCH：Physical Sidelink Shared Channel，物理边缘连接共享信道
FDM：Frequency Division Multiplexing，频分复用
RRC：Radio Resource Control，无线资源控制
RSRP：Reference Signal Receiving Power，参考信号接收功率
SRS：Sounding Reference Signal，探测参考信号
DMRS：Demodulation Reference Signal，解调参考信号
CRC：Cyclic Redundancy Check，循环冗余校验
PSDCH：Physical Sidelink Discovery Channel，物理边缘连接发现信道
PSBCH：Physical Sidelink Broadcast Channel，物理边缘连接广播信道
现有LTE V2X直连通信中仅支持广播通信。广播通信广泛应用于蜂窝通信中基站向小区内UE发送系统消息等场景。下面描述的本公开实施例的设计目标是在5G NR V2X中支持单播通信以及组播通信。单播通信表示一个发送用户设备(UE)和单个接收用户设备之间的通信。组播通 信一般表示一组UE分配了相同的ID，UE在组内进行通信。在LTE和NR通信中，基站和UE级的通信采用单播形式。以下行数据通信为例，数据信道PDSCH采用UE特有的C-RNTI进行加扰，以实现物理层的单播通信。值得指出的是，为了更好地反映下行信道的质量以及提高传输的可靠性，在单播通信中通常包含CSI上报以及HARQ重传机制。Release 14/15 LTE V2X课题中当前仅支持UE之间的广播通信，即一个UE发送的控制信息和数据可以被其他多个UE接收并正确译码。对于NR V2X，为使能单播通信，如上文所述，需要具体设计V2X中的CSI上报机制和HARQ重传机制。
无线信道条件通常是在不断变化的。在LTE和NR通信中，为了更好地适应无线信道的变化，UE可以通过CSI将下行信道质量信息上报给基站，以便基站为UE选择更加可靠的MCS，以及选择更准确的时频资源等信息。CSI表示信道状态信息，由CQI、PMI、RI组成。本公开对CSI包含的内容不做具体限制，采用CSI上报统一表示。NR中，基站通过RRC信令UE级配置CSI-RS资源。基站在发送给UE的上行调度许可中动态触发UE是否上报非周期性CSI。UE通过测量接收到的下行参考信号(LTE中为CRS，NR中为CSI-RS)获取CSI信息，并根据基站指示的资源上报CSI给基站。对于周期性CSI上报，基站为UE配置PUCCH资源用于CSI上报；对于非周期性CSI上报，基站指示UE用于CSI上报的PUSCH资源。具体地，在5G NR非周期性CSI上报中，基站在上行调度许可中通过CSI request域指示UE触发的非周期CSI上报类型，并且通过beta offset indicator域和UL-SCH indicator域指示UE上报CSI的可用资源。基站在进行下行调度时会将UE上报的信道质量考虑在内。HARQ表示混合自动重传，可以提供纠错功能并且实现快速重传，在无线数据通信中广泛应用，此处不做赘述。
现有Release 14 LTE V2X的直接通信过程如下面所述。图1示出了LTE V2X直接通信的基本过程。UE1向UE2发送控制信息(SCI format 1)，由物理层信道PSCCH携带。SCI format 1包含PSSCH的调度信息，例如时域和频域资源、MCS等。其中，PSSCH携带图1中UE1向UE2发送的数据(sidelink data：边缘连接数据)。
1.PSCCH在时域上占据一个子帧，频域上占据两个连续的PRB。加扰序列的初始化过程中采用预定义数值510。PSCCH中可携带SCI format 1，包含至少PSSCH的时频域资源信息，如频域资源指示域，指示该PSCCH对应PSSCH的起始sub-channel编号和连续sub-channel的数目。
2.PSSCH在时域上占据一个子帧，和对应的PSCCH频分复用(FDM)在相同的子帧上。PSSCH在频域上为sub-channel的形式，sub-channel在频域上为n subCHsize个连续的PRB，n subCHsize由RRC参数配置，sub-channel的数目由SCI format 1的频域资源指示域指示。
现有Release 14/15 LTE V2X直接通信的资源分配方案如下面所述。图2示出了LTE V2X的两种资源分配方案，分别称为基于基站调度的资源分配(Transmission mode 3)和基于UE感知(sensing)的资源分配(Transmission mode 4)。LTE V2X中，当存在eNB网络覆盖的情况下，基站可通过UE级的RRC信令SL-V2X-ConfigDedicated配置该UE的资源分配方案，或称为该UE的传输模式。
1.基于基站调度的资源分配方案：当RRC信令SL-V2X-ConfigDedicated中配置为scheduled-r14时，表示该UE被配置为基于基站调度的传输模式。基站通过RRC配置SL-V-RNTI，并通过PDCCH(DCI format 5A)向UE发送上行调度许可UL grant。上述上行调度许可中至少包含PSSCH的频域资源指示等信息。UE成功监听SL-V-RNTI加扰的PDCCH后，将上行调度许可中的PSSCH频域资源指示域作为SCI format 1中PSSCH的频域资源调度信息。
2.基于UE感知(sensing)的资源分配方案：RRC信令SL-V2X-ConfigDedicated中配置为ue-Selected-r14时表示该UE被配置为基于UE sensing的传输模式。在上述传输模式中，基站配置可用的传输资源池，UE根据一定准则(如RSRP等)在传输资源池中确定PSCCH和PSSCH的发送资源，按照图1中的流程发送PSCCH和PSSCH。本公开对UE确定可用资 源的准则不做赘述。
如未特别说明，在本公开所有实施例和实施方式中：
■ 在单播或者组播或者广播的情况下，发送UE是指发送PSCCH和PSSCH的UE，接收UE表示接收PSCCH和PSSCH的UE。
■ 本公开的所有实施例同样适用于HARQ反馈，即所有实施例中涉及的CSI上报，同样包含HARQ反馈的具体实施。
[实施例一]
图3A示出了根据本公开的实施例一的由发送用户设备执行的方法的基本过程的图。
图3B是示出了根据本公开的实施例一的由发送用户设备执行的方法的流程图。
下面，结合图3A和图3B来详细说明本公开的实施例一的由发送用户设备执行的方法。
如图3B并结合图3A所示，在本公开的实施例一中，发送用户设备执行的步骤包括：
在步骤S101，发送用户设备获取基站的配置信息。可选地，基站的配置信息可通过高层RRC信令发送。该配置信息包含发送用户设备的传输模式配置，和/或CSI-RS测量资源集合的指示，和/或CSI上报的标识。
在步骤S102，发送用户设备根据基站的配置信息发送PSCCH。其中，PSCCH携带控制信息。该控制信息可能包含CSI上报的标识或者发送用户设备的传输模式的指示，和/或CSI上报触发的指示，和/或具体CSI上报资源的指示，和/或具体的CSI-RS测量资源的指示。
可选地，实施例一的步骤S101中，发送用户设备的传输模式配置可能包含基于基站调度的传输模式，或者基于UE感知的传输模式，或者基于基站辅助调度的传输模式，或者基于UE辅助调度的传输模式。所述基于基站辅助调度的传输模式可能表示基站指示发送用户设备的部分传输参数，例如MCS等。其他的传输参数基于发送用户设备的感知确定。所述基于UE辅助调度的传输模式可能表示在组播直接通信中，group leader 用户设备向group member用户设备发送直接通信调度信息的传输模式。
可选地，实施例一的步骤S101中，基站配置的CSI-RS测量资源可能是发送用户设备传输的CSI-RS，或者SRS，或者DMRS。
可选地，实施例一的步骤S102中，CSI上报触发的指示可能为是否上报CSI，或者为CSI上报类型的指示。
可选地，实施例一的步骤S102中，具体的CSI-RS测量资源的指示可能为发送用户设备传输的CSI-RS，或者SRS，或者DMRS的资源ID，或者测量资源的具体时频域指示。
可选地，实施例一的S101和步骤S102中，CSI上报标识的一种实施方式为1bit指示域，其中0表示向基站上报，1表示向发送用户设备上报，相反亦可。步骤S101中CSI上报的标识同样可以是使能是否向基站或者发送用户设备上报CSI的指示。发送用户设备的传输模式的指示表示发送用户设备具体的传输模式，可能为基于基站调度的传输模式，可能为基于UE感知的传输模式，也可能为基于基站或者UE辅助调度的传输模式。可选地，CSI上报标识或者传输模式可以通过PSCCH CRC的加扰或者PSCCH加扰的初始化序列生成隐式指示，本实施例对此不做具体限制。
可选地，实施例一的步骤S102中，具体的CSI上报资源指示域可能指示PUCCH资源或者PUSCH资源，也可以指示PSCCH或者sidelink反馈信道或者PSSCH的资源。
可选地，本实施例一的步骤S102中，发送用户设备也可能发送PSDCH或者PSBCH。其中，PSDCH或者PSBCH可能包含CSI上报的标识或者发送用户设备的传输模式的指示。或者，当发送用户设备和接收用户设备建立单播或者组播的连接时，发送用户设备通过上层信令指示CSI上报的标识或者发送用户设备的传输模式。
[实施例二]
图4A是示出了根据本公开的实施例二的由接收用户设备执行的方法的基本过程的图。
图4B是示出了根据本公开的实施例二的由接收用户设备执行的方法的流程图。
下面，结合图4A和图4B来详细说明本公开的实施例二的由接收用户设备执行的方法。
如图4B并结合图4A所示，在本公开的实施例二中，接收用户设备执行的步骤包括：
在步骤S201，接收用户设备获取基站的CSI测量配置信息。可选地，基站可能通过高层RRC信令配置CSI测量信息。该CSI测量配置信息可能包含CSI上报标识列表，和/或CSI上报的资源集合。所述CSI上报标识列表可能是一个集合，包含一个或者多个sidelink连接的CSI上报标识。
在步骤S202，若CSI上报标识指示为向基站上报，接收用户设备采用基站指示的CSI上报资源进行CSI上报；可选地，可以采用发送用户设备传输的PSCCH中指示的CSI上报资源进行CSI上报；若CSI上报标识指示为向发送用户设备上报，接收用户设备采用发送用户设备传输的PSCCH中指示的CSI上报资源进行CSI上报；可选地，可以采用基站指示的CSI上报资源进行CSI上报。
可选地，在步骤S201中，CSI上报标识的可能的其他实施方式是发送用户设备的传输模式，或者，若基站配置了向基站上报CSI的资源，则表示向基站上报；若基站未配置向基站上报CSI的资源，则表示向发送用户设备上报。
可选地，在步骤S201中，接收用户设备可通过发送用户设备发送的PSCCH获取CSI指示信息。该CSI指示信息可能包含CSI上报标识或者发送用户设备的传输模式，和/或CSI上报的资源。
可选地，在步骤S202中，基站配置的CSI上报资源可能为PUCCH资源或者PUSCH资源，也可能为PSCCH资源或者PSSCH资源或者sidelink反馈信道的资源。接收用户设备上报的CSI可能包含接收、和/或发送用户设备的ID，和/或接收、发送用户设备直接通信连接的ID。
实施例二的可选方案同样包含当接收用户设备处于RRC Idle或者Inactive状态，若基站指示或发送用户设备指示CSI上报标识为向基站上报，则接收用户设备可能进入RRC connected状态，例如发起随机接入等。可选地，当发送用户设备触发了CSI上报，接收用户设备总是向发送用户设备上报CSI。
[实施例三]
图5A是示出了根据本公开的实施例三的由发送用户设备执行的方法的基本过程的图。
图5B是示出了根据本公开的实施例三的由发送用户设备执行的方法的流程图。
下面，结合图5A和图5B来详细说明本公开的实施例三的由发送用户设备执行的方法。
如图5B并结合图5A所示，在本公开的实施例三中，发送用户设备执行的步骤包括：
在步骤S301，发送用户设备获取基站的配置信息。可选地，基站可能通过高层RRC信令发送该配置信息。该配置信息包含是否上报接收到的CSI报告的指示。
在步骤S302，若基站指示发送用户设备向基站上报接收到的CSI报告，发送用户设备采用基站指示的资源向基站上报CSI。可选地，基站指示的资源可能为PUCCH资源或者PUSCH资源。
可选地，在本实施例三的步骤S301中，一种实施方式为该配置信息中包含1bit域，其中，1表示使能上报接收到的CSI报告；配置信息中0表示去使能上报接收到的CSI报告，反之亦可。
可选地，在本实施例三的步骤S302中，发送用户设备向基站上报的CSI可能包含接收用户设备的ID、和/或发送用户设备和接收用户设备直接通信连接的ID。
可选地，本实施例三的其他实施方案为，如果基站配置发送用户设备的传输模式为基于基站调度的传输模式，或者基于基站辅助调度的传输模式，则发送用户设备采用基站指示的资源上报接收到的CSI报告。其中，发送用户设备上报的CSI报告中可能含有接收用户设备的ID、和/或发送用户设备和接收用户设备直接通信连接的ID。基站向发送用户设备发送上行调度许可，其中，该上行调度许可中包含CSI上报的触发指示或者CSI上报类型的指示，则发送用户设备向基站上报CSI。
另外，要说明的是：上述的图2、3A、4A、5A中的虚线表示该过程 可以根据具体条件来执行。
这样，根据上述的各个实施例所述，本公开提供了一种能够基于5G NR网络技术的V2X的由用户设备执行的方法。
(变形例)
下面，利用图6来说明作为一种变形例的可执行本公开上面所详细描述的由用户设备执行的上述方法的用户设备。
图6是表示本公开所涉及的用户设备UE的框图。
如图6所示，该用户设备UE80包括处理器801和存储器802。处理器801例如可以包括微处理器、微控制器、嵌入式处理器等。存储器802例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器802上存储有程序指令。该指令在由处理器801运行时，可以执行本公开详细描述的由用户设备执行的上述方法。
上文已经结合优选实施例对本公开的方法和涉及的设备进行了描述。本领域技术人员可以理解，上面示出的方法仅是示例性的，而且以上说明的各实施例在不发生矛盾的情况下能够相互组合。本公开的方法并不局限于上面示出的步骤和顺序。上面示出的网络节点和用户设备可以包括更多的模块，例如还可以包括可以开发的或者将来开发的可用于基站、MME、或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的，本公开并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。
应该理解，本公开的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”可以指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。 “用户设备”可以指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本公开的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本公开的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本公开实施例所述的操作(方法)。本公开的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本公开实施例所描述的技术方案。
此外，上述每个实施例中所使用的基站设备和终端设备的每个功能模块或各个特征可以由电路实现或执行，所述电路通常为一个或多个集成电路。设计用于执行本说明书中所描述的各个功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)或通用集成电路、现场可编程门阵列(FPGA)或其他可编程逻辑器件、分立的门或晶体管逻辑、或分立的硬件组件、或以上器件的任意组合。通用处理器可以是微处理器，或者所述处理器可以是现有的处理器、控制器、微控制器或状态机。上述通用处理器或每个电路可以由数字电路配置，或者可以由逻辑电路配置。此外，当由于半导体技术的进步，出现了能够替代目前的集成电路的先进技术时，本公开也可以使用利用该先进技术得到的集成电路。
尽管以上已经结合本公开的优选实施例示出了本公开，但是本领域的技术人员将会理解，在不脱离本公开的精神和范围的情况下，可以对本公开进行各种修改、替换和改变。因此，本公开不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (10)

  1. 一种由用户设备执行的方法，该用户设备是发送用户设备，该方法包括：
    获取基站的配置信息，所述配置信息包含所述发送用户设备的传输模式的指示信息。
  2. 根据权利要求1所述的方法，其中，还包括：
    如果所述发送用户设备的传输模式的指示信息指示所述发送用户设备的传输模式为基于基站调度的传输模式，或者，基于基站辅助调度的传输模式，则采用基站指示的资源向所述基站上报接收到的HARQ反馈。
  3. 根据权利要求1所述的方法，其中：
    所述配置信息通过RRC信令发送。
  4. 根据权利要求2所述的方法，其中：
    所述基站指示的资源是PUCCH资源，或者，PUSCH资源。
  5. 根据权利要求2所述的方法，其中：
    所述接收到的HARQ反馈由接收用户设备发送。
  6. 根据权利要求2所述的方法，其中：
    所述发送用户设备和所述接收用户设备之间的通信是单播通信，或者，组播通信。
  7. 一种由用户设备执行的方法，该用户设备是发送用户设备，该方法包括：
    获取基站的配置信息，所述配置信息包含所述发送用户设备的传输模式配置、和/或所述发送用户设备传输的CSI-RS资源集合的指示、和/或使能是否向发送用户设备上报CSI的指示。
  8. 根据权利要求7所述的方法，其中，还包括：
    发送包含控制信息的PSCCH，
    所述控制信息包含CSI上报触发的指示、和/或CSI上报资源的指示、和/或所述发送用户设备传输的CSI-RS的资源标识ID或者时频资源的指示。
  9. 根据权利要求8所述的方法，其中，
    所述CSI上报资源表示PSSCH的资源。
  10. 根据权利要求7所述的方法，其中，
    所述传输模式配置包含基于基站调度的传输模式、或者基于UE感知的传输模式。
PCT/CN2019/108157 2018-09-28 2019-09-26 由用户设备执行的方法以及用户设备 WO2020063747A1 (zh)

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Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7137638B2 (ja) * 2018-12-27 2022-09-14 株式会社Ｎｔｔドコモ 端末、方法、及びシステム
US20220159674A1 (en) * 2019-02-22 2022-05-19 Idac Holdings, Inc. Methods for nr sl multi-sub-channel pscch transmission
EP4013103A4 (en) * 2019-08-08 2023-04-19 Ntt Docomo, Inc. TERMINAL
US11638269B2 (en) * 2019-08-13 2023-04-25 Qualcomm Incorporated Channel state information report aggregation and uplink control information multiplexing for sidelink communications
KR102489553B1 (ko) * 2020-02-06 2023-01-18 엘지전자 주식회사 Nr v2x에서 csi 보고를 수행하는 방법 및 장치
US11770844B2 (en) * 2020-04-15 2023-09-26 Qualcomm Incorporated Methods and apparatus for signaling of network coding information to facilitate feedback processing
US20210329604A1 (en) * 2020-04-20 2021-10-21 Mediatek Singapore Pte. Ltd. Physical Layer Enhancements for Sidelink Communication
WO2021212459A1 (en) * 2020-04-24 2021-10-28 Mediatek Singapore Pte. Ltd. Physical layer enhancements for sl communication
US11956044B2 (en) * 2020-05-13 2024-04-09 Qualcomm Incorporated Dynamic adaptation of semi-persistent CSI report setting
WO2021232402A1 (en) * 2020-05-22 2021-11-25 Qualcomm Incorporated Csi forwarding in sidelink
US11632785B2 (en) * 2020-06-26 2023-04-18 Qualcomm Incorporated Receive grant for a sidelink transmission
US11856585B2 (en) * 2020-08-06 2023-12-26 Qualcomm Incorporated Channel state information (CSI) reporting for multicast communications
CN115989692A (zh) * 2020-08-31 2023-04-18 华为技术有限公司 一种通信方法及装置
US11563611B1 (en) * 2020-09-21 2023-01-24 Sprint Spectrum Lp Adjusting reference signal reporting based on uplink channel conditions
US11777577B2 (en) * 2021-05-21 2023-10-03 Qualcomm Incorporated Channel state reporting for sidelink communications
CN115580384A (zh) * 2021-06-21 2023-01-06 夏普株式会社 由用户设备执行的方法以及用户设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102082636A (zh) * 2010-08-16 2011-06-01 大唐移动通信设备有限公司 一种信道状态信息csi反馈指示方法和基站及系统
CN105246025A (zh) * 2015-09-08 2016-01-13 宇龙计算机通信科技(深圳)有限公司 一种控制v2x业务传输的方法及装置
WO2017173133A1 (en) * 2016-03-30 2017-10-05 Idac Holdings, Inc. Long term evolution-assisted nr flexible radio access
CN108141340A (zh) * 2015-10-01 2018-06-08 Lg 电子株式会社 在d2d通信中发送参考信号的方法和终端

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150358981A1 (en) * 2013-01-07 2015-12-10 Lg Electronics Inc. Method and apparatus for performing device-to-device communication in wireless communication system
US9794976B2 (en) * 2014-09-03 2017-10-17 Futurewei Technologies, Inc. System and method for D2D resource allocation
WO2016034106A1 (en) * 2014-09-04 2016-03-10 Huawei Technologies Co., Ltd. System and method for communicating resource allocation for d2d
CN105813204B (zh) 2014-12-31 2020-05-05 中兴通讯股份有限公司 资源池配置方法及设备
DE112015006819T5 (de) * 2015-08-20 2018-05-03 Intel IP Corporation Maschinentypkommunikationsweiterleitung
US10506402B2 (en) * 2016-03-31 2019-12-10 Samsung Electronics Co., Ltd. Method and apparatus for transmission of control and data in vehicle to vehicle communication
KR102166380B1 (ko) * 2016-07-01 2020-10-15 엘지전자 주식회사 무선 통신 시스템에서 데이터를 송수신하는 방법 및 이를 위한 장치
US10659139B2 (en) * 2017-03-02 2020-05-19 Lg Electronics Inc. Method for user equipment (UE) to perform device-to-device (D2D) relay communication in wireless communication system and apparatus therefor
US10863447B2 (en) * 2018-07-11 2020-12-08 Samsung Electronics Co., Ltd. Method and apparatus for multi-antenna transmission in vehicle to vehicle communication
US20210306824A1 (en) * 2018-08-09 2021-09-30 Convida Wireless, Llc Broadcast, multicast, and unicast on sidelink for 5g ev2x
EP3821658A1 (en) * 2018-08-09 2021-05-19 Convida Wireless, Llc Resource management for 5g ev2x
KR20210064343A (ko) * 2018-09-27 2021-06-02 콘비다 와이어리스, 엘엘씨 NR V2X에 대한 Uu 기반 사이드링크 제어

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102082636A (zh) * 2010-08-16 2011-06-01 大唐移动通信设备有限公司 一种信道状态信息csi反馈指示方法和基站及系统
CN105246025A (zh) * 2015-09-08 2016-01-13 宇龙计算机通信科技(深圳)有限公司 一种控制v2x业务传输的方法及装置
CN108141340A (zh) * 2015-10-01 2018-06-08 Lg 电子株式会社 在d2d通信中发送参考信号的方法和终端
WO2017173133A1 (en) * 2016-03-30 2017-10-05 Idac Holdings, Inc. Long term evolution-assisted nr flexible radio access

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"New SID Proposal : Study on NR V2X", RP-181480
HUAWEI ET AL.: "Discussion on Delay and Interruption Requirements for V2X CA in Mode 3", 3GPP TSG-RAN WG4 MEETING #86BIS R4-1804796, 20 April 2018 (2018-04-20), XP051431627 *
See also references of EP3860024A4

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