WO2020029875A1 - 用于用户设备之间通信的方法和用户设备 - Google Patents

用于用户设备之间通信的方法和用户设备 Download PDF

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Publication number
WO2020029875A1
WO2020029875A1 PCT/CN2019/099006 CN2019099006W WO2020029875A1 WO 2020029875 A1 WO2020029875 A1 WO 2020029875A1 CN 2019099006 W CN2019099006 W CN 2019099006W WO 2020029875 A1 WO2020029875 A1 WO 2020029875A1
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Prior art keywords
frequency point
control information
indication information
frequency
pssch
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PCT/CN2019/099006
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English (en)
French (fr)
Inventor
纪子超
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to JP2021506699A priority Critical patent/JP7120716B2/ja
Priority to EP19848470.1A priority patent/EP3832937B1/en
Priority to ES19848470T priority patent/ES3042124T3/es
Publication of WO2020029875A1 publication Critical patent/WO2020029875A1/zh
Priority to US17/168,647 priority patent/US11616630B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • 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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0041—Frequency-non-contiguous
    • 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
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • 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 signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present disclosure relates to the field of mobile communication technologies, and in particular, to a method and user equipment for communication between user equipments.
  • the Long Term Evolution (LTE) system supports sidelinks from the twelfth release (Release 12), so that user equipment (User Equipment, UE) can communicate directly.
  • UE User Equipment
  • CCs Component Carriers, CCs
  • PSCCH physical side link control channel
  • sidelink is a half-duplex working mode
  • the UE may not be able to receive on other CCs, especially when two CCs are in the same frequency band.
  • the UE cannot send and receive between related CCs. These will cause the receiving-end UE to receive and send conflicts when multiple CCs perform independent sensing and blind detection, which will cause the UE's multi-CC transmission or reception capabilities to be limited.
  • the number of CCs configured in the sidelink system exceeds the number of CCs received or sent by the UE at the same time, the number of CCs perceived or received by the UE is limited, which may cause the UE to miss data sent by other UEs, and the UE cannot fully use all available spectrum It is also impossible to select the best resource for data transmission and reception.
  • V2X Vehicle to Everything
  • a typical working method is to perform basic security services in some CCs, such as LTE CCs, and in other CCs, such as New Air Interface ( New Radio (NR) CC supports advanced (automatic) driving, sensor expansion, and other advanced V2X services with low latency and large data volume.
  • CCs such as LTE CCs
  • NR New Radio
  • CCs such as New Air Interface ( New Radio (NR) CC supports advanced (automatic) driving, sensor expansion, and other advanced V2X services with low latency and large data volume.
  • NR New Radio
  • Embodiments of the present disclosure provide a method and UE for communication between UEs.
  • a brief summary is given below. This summary is not a general overview, nor is it intended to identify key / important constituent elements or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
  • a method for communication between UEs including: the UE determines a physical control channel resource at a first frequency point; and the UE sends first control information on the physical control channel at the first frequency point
  • the first control information includes frequency point indication information and / or resource indication information of a second frequency point
  • the frequency point indication information of the second frequency point is used to indicate the second frequency point
  • the first The resource indication information of the second frequency point is used to indicate the resource to which the second frequency point is allocated / reserved.
  • the first control information further includes frequency point indication information and / or resource indication information of the first frequency point; the frequency point indication information of the first frequency point is used to indicate the first frequency point The resource indication information of the first frequency point is used to indicate the resource to which the first frequency point is allocated / reserved.
  • the method further includes: the UE sends second control information on a physical control channel of the first frequency point; wherein the second control information includes a frequency point indication of the first frequency point Information and / or resource indication information; the frequency point indication information of the first frequency point is used to indicate the first frequency point, and the resource indication information of the first frequency point is used to indicate that the first frequency point is allocated / Reserved resources.
  • the format or size of the first control information and the second control information are the same; or, the format and size of the first control information and the second control information are different.
  • an independent domain in the first control information is used as frequency point indication information and / or resource indication information; or, The reserved bits in the first control information are used as frequency point indication information and / or resource indication information; or, the domain set in the first control information is used as frequency point indication information and / or resource indication.
  • Information; or, frequency point indication information and / or resource indication information are jointly coded with at least one other domain in the first control information; or frequency point indication information and / or resource indication information are used to scramble the first control information Cyclic Redundancy Check (CRC).
  • CRC Cyclic Redundancy Check
  • the physical control channel includes a physical side link control channel (PSCCH); the resources allocated / reserved at the second frequency point include resources of the PSCCH, or physical side link sharing Channel (Physical Sidelink Shared Channel, PSSCH) resources, or PSCCH resources and PSSCH resources.
  • PSCCH physical side link control channel
  • PSSCH Physical Sidelink Shared Channel
  • the method further includes: sending data on the PSSCH at the second frequency point; or sending control information on the PSCCH at the second frequency point; or, The data is transmitted on the PSSCH at the second frequency and the control information is transmitted on the PSCCH.
  • the method further includes: determining, by the UE, the first frequency point and / or the second frequency point in one or more of the following manners:
  • a method for communication between UEs including: the UE senses and / or listens to a physical control channel at a first frequency point to obtain first control information; the first control information includes a second frequency point Frequency point indication information and / or resource indication information; wherein the frequency point indication information of the second frequency point is used to indicate the second frequency point, and the resource indication information of the second frequency point is used to indicate the Resources allocated / reserved at the second frequency.
  • the physical control channel includes a PSCCH; the resources allocated / reserved at the second frequency point include a PSCCH resource, or a PSSCH resource, or a PSCCH resource and a PSSCH resource.
  • the method further comprises: the UE monitoring the PSCCH at the second frequency point and demodulating to obtain the third control information according to the indication of the first control information; or the UE according to the first control information An instruction of control information to receive the PSSCH at the second frequency point; or, the UE monitors the PSCCH demodulation of the second frequency point to obtain the third control information and receives the PSSCH according to the instruction of the first control information.
  • the PSSCH at the second frequency is described.
  • the third control information includes resource indication information of the PSSCH at the second frequency point.
  • the method further includes: receiving, by the UE, a PSSCH of the second frequency point according to the indication of the third control information; or, the UE receiving the first frequency indication indicated by the third control information.
  • the PSSCH resources at the two frequency points are compared with the PSSCH resources at the second frequency point indicated by the first control information; when the two are different, a preset operation is performed.
  • the method further includes: the UE selecting one or more frequency points to receive the PSSCH from the frequency points indicated by the first control information and / or the third control information.
  • the UE selects one or more frequency points to receive the PSSCH according to at least one of a priority, a quality of service (QoS), and a transmission mode.
  • a priority a priority
  • QoS quality of service
  • the method further includes: the UE reporting resources available at the second frequency point.
  • the first frequency point is a frequency point of a first sidelink transmission mode
  • the second frequency point is a frequency point of a second sidelink transmission mode
  • the first frequency point and the second frequency point The points are the frequency points of the first sidelink transmission mode.
  • a UE including a processor and a transceiver, where the processor is configured to determine a physical control channel resource at a first frequency point, and the transceiver is configured to send on a physical control channel at the first frequency point.
  • First control information wherein the first control information includes frequency point indication information and / or resource indication information of a second frequency point, and the frequency point indication information of the second frequency point is used to indicate the second frequency point
  • the resource indication information of the second frequency point is used to indicate the resource to which the second frequency point is allocated / reserved.
  • the transceiver is further configured to send second control information on a physical control channel of the first frequency point, where the second control information includes frequency point indication information of the first frequency point and Or resource indication information; the frequency point indication information of the first frequency point is used to indicate the first frequency point, and the resource indication information of the first frequency point is used to indicate that the first frequency point is allocated / pre-determined Resources to stay.
  • the physical control channel includes a PSCCH; the resources allocated / reserved at the second frequency point include a PSCCH resource, or a PSSCH resource, or a PSCCH resource and a PSSCH resource.
  • the transceiver is further configured to send data on the PSSCH at the second frequency point after sending the first control information; or send control information on the PSCCH at the second frequency point; or, Sending data on the PSSCH at the second frequency point and sending control information on the PSCCH.
  • the processor is further configured to determine the first frequency point and / or the second frequency point in one or more of the following manners:
  • the first frequency point and / or the second frequency point are randomly selected or determined by a pseudo-random function.
  • a UE including a transceiver, where the transceiver includes a first unit for sensing and / or monitoring a physical control channel at a first frequency point; and a second unit for receiving a physical control channel Obtaining first control information; wherein the first control information includes frequency point indication information and / or resource indication information of a second frequency point, and the frequency point indication information of the second frequency point is used to indicate the second frequency point Point, the resource indication information of the second frequency point is used to indicate the resource to which the second frequency point is allocated / reserved.
  • the transceiver further includes a third unit, configured to monitor the PSCCH of the second frequency point and demodulate to obtain the third control information according to the instruction of the first control information, or to receive the third control information.
  • the third control information includes resource indication information of the PSSCH at the second frequency point.
  • the UE further includes a processor for controlling the transceiver to receive the PSSCH of the second frequency point according to the indication of the third control information; or for transmitting the third control information
  • the indicated PSSCH resource of the second frequency point is compared with the PSSCH resource of the second frequency point indicated by the first control information; when the two are different, a preset operation is performed.
  • the processor is further configured to select one or more frequency points from the frequency points indicated by the first control information and / or the third control information to receive the PSSCH.
  • the processor selects one or more frequency points to receive the PSSCH according to at least one of a priority, a QoS, and a transmission mode.
  • the transceiver is further configured to report resources available at the second frequency point.
  • a UE including a transceiver, a processor, a bus, and a memory.
  • the transceiver is used for communication and interaction with other UEs.
  • the processor is configured to support performing the functions of the UE in the first aspect described above; memory and processing A device coupling, which stores program instructions and data necessary for the UE in the first aspect.
  • a UE which includes a transceiver, a processor, a bus, and a memory.
  • the transceiver is used for communication and interaction with other UEs, and the processor is configured to support execution of functions corresponding to the UE in the second aspect.
  • the memory is coupled to the processor and stores program instructions and data necessary for the UE in the second aspect.
  • a computer-readable medium on which an instruction program is stored, and when the instruction program is executed by a processor, any of the foregoing methods for communication between UEs is implemented.
  • the transmitting UE can allocate resources or reserve resources across frequency points, and the receiving UE can sense and blindly detect resources at only one frequency point to obtain resource allocation or reservation results at other frequency points. It can solve the problems that the UE's multi-frequency point sending or receiving capabilities are limited, and the receiving and transmitting capabilities between UEs do not match. For a single UE, by obtaining resource allocation / reservation results of other frequency points at one frequency point, it is possible to avoid the problem of receiving and sending conflicts caused by the independent resource perception of multiple frequency points.
  • the UE can reside at any frequency point to obtain the resource allocation / reservation result of other frequency points, by allocating the UE to perform resource awareness at different frequency points, it can support load balancing between multiple frequency points, avoid interference, and facilitate UE selection. The best frequency band for sending and receiving.
  • the UE uses sidelink for V2X services, even if the UE has limited transmission or reception capabilities at multiple frequencies, it can ensure that different V2X services can be performed simultaneously.
  • FIG. 1 is an optional schematic flow of communication between UEs
  • FIG. 2 is an optional schematic block diagram of a transmitting UE
  • FIG. 3 is an optional schematic block diagram of a receiving UE
  • FIG. 4 is another optional schematic block diagram of a transmitting UE
  • FIG. 5 is another optional schematic block diagram of a receiving UE
  • 6 is an optional schematic diagram of communication between UEs
  • FIG. 7 is an optional schematic diagram of communication between UEs
  • FIG. 8 is an optional schematic diagram of communication between UEs.
  • the embodiments herein may be supported by standard documents published for at least one of the following wireless access systems: 3rd Generation Partnership Project (3rd Generation, Partnership Project, 3GPP), 3GPP, LTE, Advanced LTE (LTE-A), Third Generation Partner Program 2 (3rd Generation, Partnership Project 2 (3GPP2), Institute of Electrical and Electronics Engineers (Electrical and Electronics Engineers, IEEE) 802. Steps or parts not described to clarify the technical features of this document may be supported by those documents. In addition, all terms in this document can be explained by standard documents.
  • the UE includes a vehicle, a driver's mobile terminal, and a pedestrian's mobile terminal specified in the V2X communication standard.
  • the road side unit (RSU) specified in V2X may also be a UE in this document unless otherwise specified.
  • the first user equipment (UE1) at the transmitting end, the second user equipment (UE2), and the third user equipment (UE3) at the receiving end may be collectively referred to as UEs.
  • each frequency point can be a CC, or a Bandwidth Part (BWP), or a resource pool.
  • BWP Bandwidth Part
  • the symbol / indicates an OR relationship
  • “A and / or B” indicates three cases: A or B, or, A and B.
  • the first frequency point and / or the second frequency point means: the first frequency point or the second frequency point, or the first frequency point and the second frequency point;
  • frequency point indication information and / or resource indication information means: frequency point indication information or resource indication information, or frequency point indication information and resource indication information, and so on.
  • the frequency point indication information is used to indicate a corresponding frequency point.
  • the frequency point indication information of the first frequency point is used to indicate the first frequency point
  • the frequency point indication information of the second frequency point is used to indicate the second frequency point, and so on.
  • the resource indication information is used to indicate resources allocated / reserved on a corresponding frequency point / channel.
  • the resource indication information of the first frequency point is used to indicate the resources allocated / reserved at the first frequency point
  • the resource indication information of the second frequency point is used to indicate the resources allocated / reserved at the second frequency point, etc. Wait.
  • Figure 1 illustrates an alternative method for communication between UEs.
  • step 11 UE1 determines the resources of the physical control channel at the first frequency point.
  • the physical control channel generally refers to a channel that the physical layer can use to transmit resource indication information.
  • the physical control channel includes a PSCCH.
  • the manner in which the sending UE determines the PSCCH resource at the first frequency includes: the sending UE determines the PSCCH resource at the first frequency according to the scheduling or configuration on the network side, or the sending UE is in a set PSCCH resource pool In the competition, the PSCCH resource of the first frequency point is selected. Similarly, the sending UE can determine the PSSCH resource at the first frequency point through network-side scheduling or configuration or competition in the PSSCH resource pool.
  • UE1 sends the first control information on the physical control channel at the first frequency point.
  • the first control information includes frequency point indication information and / or resource indication information of the second frequency point.
  • the frequency point indication information of the second frequency point is used to indicate the second frequency point
  • the resource indication information of the second frequency point is used to indicate the resource to which the second frequency point is allocated / reserved. In this way, after receiving the first control information at the first frequency point, the receiving UE can obtain the resource allocation / reservation information of the cross-frequency point according to the indication of the first control information.
  • the resources allocated / reserved at the second frequency point include: a PSSCH resource, or a PSCCH resource, or a PSSCH resource and a PSCCH resource.
  • the resources to be allocated / reserved include the time domain of the resource, or, the frequency domain, or the space domain, or the time and frequency domain, or the time and space domain, or the frequency and space domain, or, Time, frequency and space.
  • the time domain of the resource includes at least one of an offset, a pattern, a duration, and a period;
  • the frequency domain of the resource includes at least one of a subcarrier frequency, a subcarrier interval, and a resource block position;
  • a spatial domain of the resource Includes antenna beam information.
  • the UE sends control information on the physical control channel at the first frequency point.
  • the UE sends Sidelink Control Information (SCI) on the PSCCH at the first frequency point.
  • SCI includes frequency point indication information and / or resource indication information of the second frequency point.
  • the UE sends a scheduling indication (Scheduling Assignment, SA) on the PSCCH at the first frequency point.
  • SA includes frequency point indication information and / or resource indication information of the second frequency point.
  • Step 13 UE1 sends related information at the second frequency point.
  • UE1 when PSSCH resources are allocated / reserved at the second frequency point, UE1 sends data on the PSSCH at the second frequency point.
  • UE1 when the PSCCH resource is allocated / reserved at the second frequency point, UE1 sends the SCI on the PSCCH at the second frequency point.
  • the SCI includes resource indication information of the PSSCH at the second frequency point.
  • UE1 when the second frequency point is allocated / reserved with PSSCH resources and PSCCH resources, UE1 sends data on the PSSCH at the second frequency point and sends SCI on the PSCCH.
  • the SCI includes resource indication information of the PSSCH at the second frequency point.
  • Step 14 UE2 senses and / or listens to the physical control channel at the first frequency point, and obtains the first control information.
  • the first control information includes frequency point indication information and / or resource indication information of the second frequency point.
  • monitoring the physical control channel is an optional detection method that the receiving UE can adopt, and blind detection is another optional detection method that the receiving UE can adopt.
  • blind detection is another optional detection method that the receiving UE can adopt.
  • the monitoring physical control channel also includes the technical means of blindly detecting the physical control channel.
  • UE2 senses the physical control channel at the first frequency point, or UE2 monitors the physical control channel at the first frequency point, or UE2 monitors and senses the physical control channel at the first frequency point to obtain first control information.
  • the physical control channel includes a PSCCH
  • the first control information includes SCI or SA.
  • the resources allocated / reserved at the second frequency point include PSSCH resources, or PSCCH resources, or PSSCH resources and PSCCH resources.
  • step 15 the UE2 receives related information at the second frequency point according to the indication of the first control information.
  • the first control information includes resource indication information of the PSCCH at the second frequency point
  • UE2 monitors the PSCCH at the second frequency point and demodulates to obtain the third control information.
  • the third control information includes resource indication information of the PSSCH at the second frequency point.
  • UE2 receives the PSSCH at the second frequency point according to the indication of the third control information, and receives data sent by UE1.
  • the UE2 receives the PSSCH at the second frequency point.
  • the UE2 monitors the PSCCH demodulation of the second frequency point to obtain the third control information and receives the PSSCH of the second frequency point. Because the first control information can indicate the PSSCH resource at the second frequency point, and the third control information can also indicate the PSSCH resource at the second frequency point, so that UE2 can obtain the second frequency point from the first control information and the third control information, respectively. PSSCH resource indication information. In this case, the UE2 can achieve the purpose of transmission check by comparing the PSSCH resource of the second frequency point indicated by the third control information with the PSSCH resource of the second frequency point indicated by the first control information.
  • UE2 may obtain resource allocation / reservation information of multiple frequency points according to the indication of the first control information and / or the third control information. When UE2 can support simultaneous reception / transmission of all these frequency points, UE2 can receive / transmit data on all these frequency points. When the number of frequency points exceeds the number of simultaneous receiving / sending frequency points that can be supported by UE2, optionally, UE2 may select one or more frequency points from the frequency points indicated by the first control information and / or the third control information. Receive PSSCH. UE2 will give up receiving PSSCH at unselected frequencies. In this way, UE2 can select the most important resources for data transmission and reception, not only can make full use of all available spectrum resources, but also will not miss data sent by other UEs. Optionally, UE2 selects one or more frequency points to receive the PSSCH according to one or a combination of priority, QoS, and transmission mode.
  • the priority may be a priority of a frequency point or a priority of a transmission service.
  • UE2 There are multiple ways for UE2 to obtain priority, QoS, and transmission mode.
  • the first control information includes one or more of priority, QoS, and transmission mode.
  • UE2 can obtain these information through the first control information.
  • UE2 may obtain one or more of priority, QoS, and transmission mode through high-level configuration.
  • the priority and / or transmission mode is predefined.
  • UE2 may determine resources available and unavailable resources at the second frequency point.
  • UE2 reports the resources available on the second frequency point to the upper layer.
  • the first frequency point and the second frequency point are frequency points of a same sidelink transmission mode.
  • the first frequency point and the second frequency point are both CC / BWP in LTE sidelink transmission mode, or both are CC in NR sidelink transmission mode.
  • the first frequency point and the second frequency point are frequency points of different sidelink transmission modes.
  • the first frequency point is CC / BWP in LTE sidelink transmission mode
  • the second frequency point is CC / BWP in NR sidelink transmission mode
  • the first frequency point is CC / BWP in NR sidelink transmission mode
  • the second frequency point CC / BWP for LTE sidelink transmission mode.
  • the UE may send an SCI on the CC / BWP of the LTE sidelink transmission mode to indicate the allocation or reservation of the CC / BWP of the NR sidelink transmission mode. Therefore, the UE can sense on the CC / BWP in the LTE sidelink transmission mode, and blindly detect basic security services, and obtain the resources allocated to the advanced V2X service on the CC / BWP in the NR sidelink transmission mode.
  • the transmitting UE can perform resource allocation or reservation across frequency points, and the receiving UE can perform resource awareness and blind detection at only one frequency point to obtain resource allocation or reservation results at other frequency points. Therefore, problems such as limitation of UE multi-frequency sending or receiving capabilities, and mismatch of sending and receiving capabilities between UEs can be solved. For a single UE, by obtaining resource allocation / reservation results of other frequency points at one frequency point, it is possible to avoid the problem of receiving and sending conflicts caused by the independent resource perception of multiple frequency points.
  • the UE can reside at any frequency point to obtain the resource allocation / reservation result of other frequency points, by allocating the UE to perform resource awareness at different frequency points, it can support load balancing between multiple frequency points, avoid interference, and facilitate UE selection. The best frequency band for sending and receiving.
  • the UE uses sidelink for V2X services, even if the UE has limited transmission or reception capabilities at multiple frequencies, it can ensure that different V2X services can be performed simultaneously.
  • UE1 may also send the second control information on the physical control channel at the first frequency point.
  • the second control information includes frequency point indication information and / or resource indication information of the first frequency point.
  • the frequency point indication information of the first frequency point is used to indicate the first frequency point
  • the resource indication information of the first frequency point is used to indicate the resources allocated / reserved at the first frequency point.
  • UE1 sends the resource indication information of the cross-frequency point and the resource indication information of the local frequency point through the first control information and the second control information, respectively.
  • the second control information uses a standard and standardized control information format, including the standard SCI; the first control information also uses a standard and standardized control information format, including the standard and standardized SCI.
  • multiple pieces of control information carry resource indication information, and the formats and sizes of the multiple pieces of control information are the same.
  • UE1 sends multiple control information in a set order.
  • the first control information sent by UE1 is the second control information corresponding to the local frequency point
  • the second control information sent is the first control information corresponding to the cross-frequency point.
  • UE2 may determine the frequency point corresponding to each control information according to the receiving order, and distinguish the first control information from the second control information. This method does not need to change the format of the related technology control information, and indicates the frequency point corresponding to each control information through the transmission order of the control information.
  • control information of the standard specification is slightly modified.
  • the frequency point indication information is added to the control information of the standard specification.
  • a reserved bit in the control information of the standard specification may be used for the frequency point indication.
  • the first control information sent by the UE1 on the physical control channel at the first frequency point includes frequency point indication information of the second frequency point
  • the second control information includes frequency point indication information of the first frequency point.
  • UE2 may determine the frequency point corresponding to each control information according to the frequency point indication information in each control information, and distinguish the first control information from the second control information. This method can indicate the frequency points corresponding to each control information by making small changes to the standard control information.
  • the second control information used for self-scheduling at the first frequency point may adopt standard control information, including the standard SCI; the first control used for cross-frequency scheduling at the second frequency point.
  • the information can be determined based on the modification of the control information of the standard specification (including the SCI of the standard specification).
  • the first control information sent by the UE1 on the physical control channel of the first frequency point includes resource indication information of other frequency points in addition to the resource indication information of the second frequency point.
  • the first control information further includes resource indication information of the first frequency point, or resource indication information of the first frequency point and other frequency points.
  • the first control information may be determined based on modification of the control information of the standard specification (including the SCI of the standard specification).
  • the first control information may indicate resources of the second frequency point in multiple ways.
  • an independent field in the control information of the standard specification may be used as the frequency point indication information and / or the resource indication information.
  • reserved bits in the control information of the standard specification may be used as frequency point indication information and / or resource indication information.
  • the domain set in the control information of the standard specification may be used as frequency point indication information and / or resource indication information.
  • the frequency point indication information and / or the resource indication information are jointly coded with at least one other domain.
  • the specific fields used as the frequency point indication information and / or the resource indication information in the control information of the standard specification may be independently coded or jointly coded.
  • the indication field can also be used to indicate: transmission type, service type, transmission priority, response information (such as ACK / NACK), Hybrid Automatic Repeat Request (HARQ) process number , At least one of resource allocation and modulation and coding strategy MCS. That is, the frequency point indication information and / or the resource indication information are jointly coded with at least one of transmission type, service type, transmission priority, response information, HARQ process number, resource allocation and modulation and coding strategy MCS.
  • the frequency point indication information and / or the resource indication information are used to scramble the CRC.
  • the receiving UE may obtain the frequencies of one or more available frequency points in advance through scheduling configuration on the network side or other methods.
  • Point indication information for example, frequency point information of frequency point 1, frequency point 2, and frequency point 3
  • resource indication information of resources available at available frequency points for example, resource indication information of available resources at frequency point 1, frequency point 2
  • Resource indication information of available resources on the frequency and resource indication information of resources available on the frequency point 3 Resource indication information of available resources on the frequency and resource indication information of resources available on the frequency point 3).
  • the receiving UE when it receives the information sent by the transmitting UE, it can sequentially use the frequency point indication information of each frequency point and / or the resource indication information of resources available at each frequency point to descramble the received information.
  • the indication information capable of correctly descrambling the received information is frequency point indication information and / or resource indication information sent by the sending UE.
  • the receiving UE may perform CRC descrambling on each frequency point in turn according to at least one of priority, Qos, and transmission mode.
  • the method for communication between UEs further includes UE1 determining a second frequency point.
  • the second frequency point is determined according to a configuration or service requirement of a higher layer.
  • the second frequency point is selected according to the configured priority.
  • the second frequency point is selected by the signal strength or quality.
  • the second frequency point is selected according to the interference situation or occupancy ratio of the frequency points.
  • the second frequency point is determined according to a network configuration.
  • the second frequency point is randomly selected.
  • the second frequency point is allocated according to a pseudo-random function.
  • the first frequency point may also be determined by using the foregoing optional manner.
  • the frequency point is CC as an example, and the method used for communication between UEs in this article will be described more specifically.
  • UE1, UE2, and UE3 are all configured and enabled for sidelink transmission.
  • UE1 is configured with two CCs, namely CC1 and CC2.
  • CC1 and CC2 can be sidelink CCs of the same communication system.
  • CC1 and CC2 are both LTE or NR sidelink CCs; they can also be in different modes, for example, CC1 is LTE sidelink and CC2 is NR sidelink.
  • SCI-1 includes PSSCH resource indication information on CC2.
  • SCI-1 includes cross-frequency indication information, which indicates resource allocation on CC2.
  • UE2 perceives and blindly detects the PSCCH on CC1, and demodulates to obtain SCI-1.
  • SCI-1 indicates that the PSSCH resource is allocated on CC2.
  • UE2 receives and demodulates the PSSCH on CC2 according to the instructions.
  • UE3 perceives and blindly detects the PSCCH on CC2 and demodulates it to SCI-2.
  • SCI-2 indicates that the PSSCH resource is allocated on CC2.
  • UE3 receives and demodulates the PSSCH on CC2 according to the instructions.
  • each frequency point is described by taking CC as an example, but it is also applicable to a BWP or a resource pool.
  • the SCI indicates information such as time domain, and / or, frequency domain, and / or, space domain of the resource.
  • UE1, UE2, and UE3 are all configured and enabled for sidelink transmission.
  • UE1 is configured with two CCs, namely CC1 and CC2, where CC1 is the LTE sidelink and CC2 is the NR sidelink.
  • UE1 sends SCI-1 on the PSCCH of CC1 and SCI-2 on the PSCCH of CC2.
  • SCI-1 includes indication information of SCI-2 on CC2, and SCI-2 indicates allocation of PSSCH on the same CC.
  • UE2 perceives and blindly detects the PSCCH on CC1, demodulates it to SCI-1, receives the PSCCH on CC2 according to the instructions of SCI-1 and demodulates to obtain SCI-2, and receives and demodulates the PSSCH on CC2 according to the instructions of SCI-2. .
  • UE3 perceives and blindly detects the PSCCH on CC2 and demodulates it to SCI-2.
  • SCI-2 indicates that PSSCH is allocated on CC2.
  • UE3 receives and demodulates the PSSCH of CC2 according to the instructions.
  • UE1, UE2, and UE3 are all configured and enabled for sidelink transmission.
  • UE1 is configured with two CCs, where CC1 is the LTE sidelink and CC2 is the NR sidelink.
  • SCI-1 indicates that resources on CC2 are reserved for subsequent transmission, and the resources are used for multiplexing transmission of PSCCH and PSSCH together.
  • SCI-2 indicates the actually allocated PSSCH.
  • UE2 perceives and blindly detects the PSCCH on CC1, demodulates it to SCI-1, and obtains the resources reserved by UE1 on CC2 according to the SCI-1 instruction.
  • UE2 detects the PSCCH at the resources reserved on CC2, demodulates it to SCI-2, and further receives and demodulates the PSSCH on CC2 according to the SCI-2 instruction.
  • UE3 perceives and blindly detects the PSCCH on CC2 and demodulates it to SCI-2.
  • SCI-2 indicates that PSSCH is allocated on CC2.
  • UE3 receives and demodulates the PSSCH on CC2 according to the instructions.
  • the transmitting UE can perform resource allocation or reservation across frequency points, and the receiving UE can perform resource awareness and blind detection at only one frequency point to obtain resource allocation or reservation results at other frequency points. Therefore, problems such as limitation of UE multi-frequency sending or receiving capabilities, and mismatch of sending and receiving capabilities between UEs can be solved. For a single UE, by obtaining resource allocation / reservation results of other frequency points at one frequency point, it is possible to avoid the problem of receiving and sending conflicts caused by the independent resource perception of multiple frequency points.
  • the UE can reside at any frequency point to obtain the resource allocation / reservation result of other frequency points, by allocating the UE to perform resource awareness at different frequency points, it can support load balancing between multiple frequency points, avoid interference, and facilitate UE selection. The best frequency band for sending and receiving.
  • the UE uses sidelink for V2X services, even if the UE has limited transmission or reception capabilities at multiple frequencies, it can ensure that different V2X services can be performed simultaneously.
  • FIG. 2 shows a schematic structure of a transmitting UE, which includes a processor S1 and a transceiver S2.
  • the processor S1 is configured to determine a physical control channel resource at the first frequency point
  • the transceiver S2 is configured to send the first control information on the physical control channel at the first frequency point.
  • the transceiver S2 is further configured to send the second control information on the physical control channel at the first frequency point. In this way, after receiving the first control information at the first frequency point, the receiving UE can obtain the resource allocation / reservation information of the cross-frequency point according to the indication of the first control information.
  • the physical control channel includes a PSCCH.
  • the transceiver S2 sends the SCI on the PSCCH at the first frequency point.
  • the SCI includes frequency point indication information and / or resource indication information of the second frequency point.
  • the UE sends an SA on the PSCCH at the first frequency point.
  • the SA includes frequency point indication information and / or resource indication information of the second frequency point.
  • the resources allocated / reserved at the second frequency point include PSCCH resources, or PSSCH resources, or PSCCH resources and PSSCH resources.
  • the manner of determining the PSCCH resources of the first frequency point includes determining the resources of the PSCCH of the first frequency point according to the scheduling configuration on the network side, or competing in the set PSCCH resource pool and selecting and determining the first frequency point. PSCCH resources.
  • the PSSCH resources at the first frequency point may also be determined through scheduling configuration on the network side or competition in the PSSCH resource pool.
  • the transceiver S2 is further configured to send data on the PSSCH at the second frequency point after sending the first control information; or send control information on the PSCCH at the second frequency point; or, at the second frequency point Data on the PSSCH and control information on the PSCCH.
  • the transceiver S2 when PSSCH resources are allocated / reserved at the second frequency point, the transceiver S2 sends data on the PSSCH at the second frequency point.
  • the transceiver S2 when the PSCCH resource is allocated / reserved at the second frequency point, the transceiver S2 sends the SCI on the PSCCH at the second frequency point.
  • the SCI includes resource indication information of the PSSCH at the second frequency point.
  • the transceiver S2 when the PSSCH resource and the PSCCH resource are allocated / reserved at the second frequency point, the transceiver S2 sends data on the PSSCH at the second frequency point and sends SCI on the PSCCH.
  • the SCI includes resource indication information of the PSSCH at the second frequency point.
  • the processor S2 is further configured to determine the first frequency point and / or the second frequency point in one or more of the following manners:
  • the first frequency point and / or the second frequency point are randomly selected or determined by a pseudo-random function.
  • the transceiver S2 may also send the second control information on the physical control channel at the first frequency point.
  • the transmitting UE sends the resource indication information of the cross-frequency point and the resource indication information of the local frequency point through the first control information and the second control information, respectively.
  • the first control information sent by the transceiver S2 on the physical control channel of the first frequency point includes resource indication information of other frequency points in addition to the resource indication information of the second frequency point.
  • the first control information further includes resource indication information of the first frequency point, or resource indication information of the first frequency point and other frequency points.
  • the first control information may be determined based on modification of the control information of the standard specification (including the SCI of the standard specification).
  • FIG. 3 shows a schematic structure of a receiving-end UE.
  • the receiving-end UE includes a transceiver S3, and the transceiver S3 includes a first unit S31 and a second unit S32.
  • the first unit S31 is configured to sense and / or monitor the physical control channel at a first frequency point
  • the second unit S32 is configured to obtain first control information from the physical control channel.
  • the physical control channel includes a PSCCH
  • the first control information includes SCI or SA.
  • the resources allocated / reserved at the second frequency point include PSSCH resources, or PSCCH resources, or PSSCH resources and PSCCH resources.
  • the transceiver S3 further includes a third unit.
  • the third unit is configured to monitor the PSCCH of the second frequency point and demodulate to obtain the third control information according to the instruction of the first control information, or to receive the PSSCH of the second frequency point, or to monitor the second frequency point.
  • the PSCCH demodulates to obtain the third control information and receives the PSSCH at the second frequency point.
  • the third control information includes resource indication information of the PSSCH at the second frequency point.
  • the receiving UE further includes a processor.
  • the processor is configured to control the transceiver S3 to receive the PSSCH at the second frequency point according to the instruction of the third control information; or, the processor is configured to combine the PSSCH resource at the second frequency point indicated by the third control information with the second frequency indicated by the first control information Point PSSCH resources for comparison; when the two are different, a preset operation is performed.
  • the receiving UE may obtain resource allocation / reservation information of multiple frequency points according to the indication of the first control information and / or the third control information.
  • the receiving UE can support simultaneous reception / transmission of all these frequency points, the receiving UE can receive / transmit data on all these frequency points.
  • the processor of the receiving UE may be in the frequency points indicated by the first control information and / or the third control information. Select one or more frequency points to receive the PSSCH. The receiving UE will give up receiving the PSSCH at a frequency not selected.
  • the receiving UE can select the most important resources for data transmission and reception, which can not only make full use of all available spectrum resources, but also not miss data sent by other UEs.
  • the processor of the receiving UE may select one or more frequency points to receive the PSSCH according to one or a combination of priority, quality of service QoS, and transmission mode.
  • the priority may be a priority of a frequency point or a priority of a transmission service.
  • UE2 There are multiple ways for UE2 to obtain priority, QoS, and transmission mode.
  • the first control information includes one or more of priority, QoS, and transmission mode.
  • UE2 can obtain these information through the first control information.
  • UE2 may obtain one or more of priority, QoS, and transmission mode through high-level configuration.
  • the priority and / or transmission mode is predefined.
  • the receiving end UE After the receiving end UE obtains resource allocation / reservation information of multiple frequency points according to the indication of the first control information and / or the third control information, it can determine resources available and unavailable resources at the second frequency point.
  • the transceiver S3 of the receiving UE may report the resources available at the second frequency point to the upper layer.
  • the third unit monitors the PSCCH at the second frequency point and demodulates to obtain the third control information.
  • the third control information includes resource indication information of the PSSCH at the second frequency point.
  • the third unit receives the PSSCH at the second frequency point according to the instruction of the third control information, and receives the data sent by the transmitting UE.
  • the third unit receives the PSSCH at the second frequency point.
  • the third unit monitors the PSCCH of the second frequency point to demodulate to obtain the third control information and receives the PSSCH of the second frequency point. Since the first control information can indicate the PSSCH resource of the second frequency point, and the third control information can also indicate the PSSCH resource of the second frequency point, so that the processor can obtain the second frequency point from the first control information and the third control information, respectively. PSSCH resource indication information. In this case, the processor may compare the PSSCH resources of the second frequency point indicated by the third control information with the PSSCH resources of the second frequency point indicated by the first control information to achieve the purpose of transmission check.
  • the two When the two are the same, it indicates that the information transmission between the transmitting UE and the receiving UE is accurate. When the two are different, it indicates that there is an error in the information transmission between the sending UE and the receiving UE. At this time, relevant operations need to be performed according to a preset policy, for example, giving up to continue to receive the PSSCH at the second frequency, or re-receiving PSCCH or PSSCH at the second frequency and so on.
  • the first frequency point and the second frequency point are frequency points of a same sidelink transmission mode.
  • the first frequency point and the second frequency point are both CC / BWP in LTE sidelink transmission mode, or both are CC in NR sidelink transmission mode.
  • the first frequency point and the second frequency point are frequency points of different sidelink transmission modes.
  • the first frequency is CC / BWP in LTE sidelink transmission mode
  • the second frequency is CC / BWP in NR sidelink transmission mode
  • the first frequency is CC / BWP in NR sidelink transmission mode
  • the second frequency CC / BWP for LTE sidelink transmission mode.
  • the UE may send an SCI on the CC / BWP of the LTE sidelink transmission mode to indicate the allocation or reservation of the CC / BWP of the NR sidelink transmission mode. Therefore, the UE can sense on the CC / BWP in the LTE sidelink transmission mode, and blindly detect basic security services, and obtain the resources allocated to the advanced V2X service on the CC / BWP in the NR sidelink transmission mode.
  • the transmitting UE can perform resource allocation or reservation across frequency points, and the receiving UE can perform resource awareness and blind detection at only one frequency point to obtain resource allocation or reservation results at other frequency points. Therefore, problems such as limitation of UE multi-frequency sending or receiving capabilities, and mismatch of sending and receiving capabilities between UEs can be solved. For a single UE, by obtaining resource allocation / reservation results of other frequency points at one frequency point, it is possible to avoid the problem of receiving and sending conflicts caused by the independent resource perception of multiple frequency points.
  • the UE can reside at any frequency point to obtain the resource allocation / reservation result of other frequency points, by allocating the UE to perform resource awareness at different frequency points, it can support load balancing between multiple frequency points, avoid interference, and facilitate UE selection. The best frequency band for sending and receiving.
  • the UE uses sidelink for V2X services, even if the UE has limited transmission or reception capabilities at multiple frequencies, it can ensure that different V2X services can be performed simultaneously.
  • the second control information uses a standard and standardized control information format, including the standard SCI; the first control information also uses a standard and standardized control information format, including the standard and standardized SCI.
  • multiple pieces of control information carry resource indication information, and the formats and sizes of the multiple pieces of control information are the same.
  • the transceiver S2 of the transmitting UE sends multiple control information in a set order.
  • the first control information sent by the transceiver S2 is the second control information corresponding to the local frequency point
  • the second control information sent is the first control information corresponding to the cross-frequency point.
  • the transceiver S3 of the receiving UE may determine a frequency point corresponding to each control information according to the receiving order, and distinguish the first control information and the second control information. This method does not need to change the format of the related technology control information, and indicates the frequency point corresponding to each control information through the transmission order of the control information.
  • control information of the standard specification is slightly modified.
  • the frequency point indication information is added to the control information of the standard specification.
  • a reserved bit in the control information of the standard specification may be used for the frequency point indication.
  • the first control information sent by the transceiver S2 of the transmitting UE on the physical control channel at the first frequency point includes indication information of the second frequency point
  • the second control information includes indication information of the first frequency point.
  • the processor of the receiving UE may determine a frequency point corresponding to each control information according to the frequency point indication information in each control information, and distinguish the first control information from the second control information. This method can indicate the frequency points corresponding to each control information by making small changes to the standard control information.
  • FIG. 4 shows a schematic structure of a transmitting UE.
  • a UE includes a transceiver 101, a processor 102, a bus 104, and a memory 103.
  • the transceiver 101 is used for communication and interaction with other UEs.
  • the processor 102 is configured to support performing the corresponding functions of the transmitting UE1 in FIG. 1 described above.
  • the memory 103 is coupled to the processor 102 and stores program instructions and data necessary for the sending end UE1 in FIG. 1.
  • FIG. 5 shows a schematic structure of a receiving UE.
  • a UE includes a transceiver 201, a processor 202, a bus 204, and a memory 203.
  • the transceiver 201 is used for communication and interaction with other UEs.
  • the processor 202 is configured to support performing the corresponding functions of the receiving UE 2 in FIG.
  • the memory 203 is coupled to the processor 202 and stores program instructions and data necessary for the receiving end UE2 in FIG. 1.
  • a non-transitory computer-readable storage medium including instructions such as a memory including instructions, may be provided, which may be executed by a processor to implement the method described above.
  • the non-transitory computer-readable storage medium may be a read-only memory (Read Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic tape, an optical storage device, and the like.
  • the disclosed methods and products may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure is essentially a part that contributes to the existing technology or a part of the technical solution may be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • the program can be stored in a computer-readable storage medium.
  • the storage medium may be a magnetic disk, an optical disk, a ROM, or a RAM.
  • each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, which contains one or more components for implementing a specified logical function Executable instructions.
  • the functions noted in the blocks may also occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved.
  • each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts can be implemented in a dedicated hardware-based system that performs the specified function or action. , Or it can be implemented with a combination of dedicated hardware and computer instructions.
  • the above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (ASIC), or one or more microprocessors (digital signal processors) , DSP), or one or more Field Programmable Gate Array (FPGA).
  • the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code.
  • CPU Central Processing Unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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Abstract

本公开实施例公开一种用于用户设备之间通信的方法和用户设备，该方法包括：用户设备(UE)确定第一频点的物理控制信道资源；UE在第一频点的物理控制信道上发送第一控制信息；其中，第一控制信息包括第二频点的频点指示信息和/或资源指示信息，第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。

Description

用于用户设备之间通信的方法和用户设备
相关申请的交叉引用
本申请主张在2018年8月6日在中国提交的中国专利申请号No.201810886594.9的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及移动通信技术领域，特别涉及一种用于用户设备之间通信的方法和用户设备。
背景技术
长期演进(Long Term Evolution，LTE)系统从第12个发布版本(Release12)开始支持旁链路(sidelink)，使用户设备(User Equipment，UE)之间可进行直接通信。当UE之间需要通过多个载波(Component Carrier，CC)进行直接通信时，接收端UE需要在每一载波上感知(sensing)并盲检测物理旁链路控制信道(Physical Sidelink Control Channel，PSCCH)以获得每个CC被分配/预留的资源的指示信息。
由于sidelink是半双工工作模式，当UE在一个CC上发送信息，将可能导致UE无法在其他CC上接收，特别是当两个CC在相同的频段(frequency band)内的场景。此外，UE在不同CC间跳转的时候，也会导致UE无法在相关CC之间进行收发。这些，会导致接收端UE在多个CC进行独立感知和盲检测时发生收发冲突，使得UE多CC的发送或接收能力受限。
当sidelink系统配置的CC数超过UE支持的同时接收或发送的CC数时，UE感知或接收的CC数受限，可能导致UE错过了其他UE发送的数据，且UE无法充分利用所有可用的频谱资源，也无法选择最好的资源进行数据收发。
当UE使用sidelink进行车联网(Vehicle to everything，V2X)业务时，一种典型的工作方式是在某些CC，例如LTE的CC，进行基础安全类业务，而在其他CC，例如，新空口(New Radio，NR)的CC，支持高级(自动)驾驶，传感器扩展等等低时延、大数据量的高级V2X业务。如果UE支持的 同时接收或发送的CC数不够，则可能会被迫长时间只在某些CC上监听基础类业务，导致高级V2X业务无法进行。
发明内容
本公开实施例提供了一种用于UE之间通信的方法和UE。为了对披露的实施例的一些方面有一个基本的理解，下面给出了简单的概括。该概括部分不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围。其唯一目的是用简单的形式呈现一些概念，以此作为后面的详细说明的序言。
第一方面，提供一种用于UE之间通信的方法，包括：UE确定第一频点的物理控制信道资源；所述UE在所述第一频点的物理控制信道上发送第一控制信息；其中，所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
可选地，所述第一控制信息还包括所述第一频点的频点指示信息和/或资源指示信息；所述第一频点的频点指示信息用于指示所述第一频点，所述第一频点的资源指示信息用于指示所述第一频点被分配/预留的资源。
可选地，所述方法还包括：所述UE在所述第一频点的物理控制信道上发送第二控制信息；其中，所述第二控制信息包括所述第一频点的频点指示信息和/或资源指示信息；所述第一频点的频点指示信息用于指示所述第一频点，所述第一频点的资源指示信息用于指示所述第一频点被分配/预留的资源。
可选地，所述第一控制信息和第二控制信息的格式或大小相同；或者，所述第一控制信息和第二控制信息的格式和大小均不同。
可选地，所述第一控制信息和第二控制信息的格式或大小相同时：所述第一控制信息中独立的域被用作频点指示信息和/或资源指示信息；或者，所述第一控制信息中保留比特(reserved bit)被用作频点指示信息和/或资源指示信息；或者，所述第一控制信息中设定的域被用作频点指示信息和/或资源指示信息；或者，频点指示信息和/或资源指示信息与所述第一控制信息中至少一个其他的域联合编码；或者，频点指示信息和/或资源指示信息用于加扰 第一控制信息的循环冗余校验(Cyclic Redundancy Check，CRC)。
可选地，所述物理控制信道包括物理旁链路控制信道(Physical Sidelink Control Channel，PSCCH)；所述第二频点被分配/预留的资源包括PSCCH的资源，或者，物理旁链路共享信道(Physical Sidelink Shared Channel，PSSCH)的资源，或者，PSCCH资源和PSSCH资源。
可选地，所述UE发送第一控制信息后，还包括：在所述第二频点的PSSCH上发送数据；或者，在所述第二频点的PSCCH上发送控制信息；或者，在所述第二频点的PSSCH上发送数据并在PSCCH上发送控制信息。
可选地，所述方法还包括：所述UE通过如下一种或多种方式确定所述第一频点和/或第二频点：
按高层的配置确定所述第一频点和/或第二频点；
按业务需求选择所述第一频点和/或第二频点；
按配置的优先级选择所述第一频点和/或第二频点；
按信号强度或质量选择所述第一频点和/或第二频点；
按频点的干扰情况或占用比率选择所述第一频点和/或第二频点；
按网络配置确定所述第一频点和/或第二频点；
随机选择所述第一频点和/或第二频点；
按伪随机函数确定所述第一频点和/或第二频点。
第二方面，提供一种用于UE之间通信的方法，包括：UE在第一频点感知和/或监听物理控制信道，获得第一控制信息；所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息；其中，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
可选地，所述物理控制信道包括PSCCH；所述第二频点被分配/预留的资源包括PSCCH资源，或者，PSSCH资源，或者，PSCCH资源和PSSCH资源。
可选地，所述方法还包括：所述UE根据所述第一控制信息的指示，监听所述第二频点的PSCCH并解调获得第三控制信息；或者，所述UE根据所述第一控制信息的指示，接收所述第二频点的PSSCH；或者，所述UE根据 所述第一控制信息的指示，监听所述第二频点的PSCCH解调获得第三控制信息并接收所述第二频点的PSSCH。
可选地，所述第三控制信息包括所述第二频点的PSSCH的资源指示信息。
可选地，所述方法还包括：所述UE根据所述第三控制信息的指示，接收所述第二频点的PSSCH；或者，所述UE将所述第三控制信息指示的所述第二频点的PSSCH资源与所述第一控制信息指示的所述第二频点的PSSCH资源进行对比；当二者不同时，执行预设操作。
可选地，所述方法还包括：所述UE在所述第一控制信息和/或第三控制信息指示的频点中选择一个或多个频点接收PSSCH。
可选地，所述UE根据优先级、服务质量(Quality of Service，QoS)、传输模式中的至少之一选择一个或多个频点接收PSSCH。
可选地，所述方法还包括：所述UE上报所述第二频点上可用的资源。
可选地，所述第一频点为第一sidelink传输模式的频点，所述第二频点为第二sidelink传输模式的频点；或者，所述第一频点和所述第二频点均为第一sidelink传输模式的频点。
第三方面，提供一种UE，包括处理器和收发器，所述处理器用于确定第一频点的物理控制信道资源；所述收发器用于在所述第一频点的物理控制信道上发送第一控制信息；其中，所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
可选地，所述收发器还用于在所述第一频点的物理控制信道上发送第二控制信息；其中，所述第二控制信息包括所述第一频点的频点指示信息和/或资源指示信息；所述第一频点的频点指示信息用于指示所述第一频点，所述第一频点的资源指示信息用于指示所述第一频点被分配/预留的资源。
可选地，所述物理控制信道包括PSCCH；所述第二频点被分配/预留的资源包括PSCCH资源，或者，PSSCH资源，或者，PSCCH资源和PSSCH资源。
可选地，所述收发器还用于在发送第一控制信息后，在所述第二频点的PSSCH上发送数据；或者，在所述第二频点的PSCCH上发送控制信息；或 者，在所述第二频点的PSSCH上发送数据并在PSCCH上发送控制信息。
可选地，所述处理器还用于通过如下一种或多种方式确定所述第一频点和/或第二频点：
按高层的配置确定所述第一频点和/或第二频点；
按业务需求选择所述第一频点和/或第二频点；
按配置的优先级选择所述第一频点和/或第二频点；
按信号强度或质量选择所述第一频点和/或第二频点；
按频点的干扰情况或占用比率选择所述第一频点和/或第二频点；
按网络配置确定所述第一频点和/或第二频点；
随机选择或按伪随机函数确定所述第一频点和/或第二频点。
第四方面，提供一种UE，包括收发器，所述收发器包括第一单元，用于在第一频点感知和/或监听物理控制信道；和，第二单元，用于从物理控制信道获得第一控制信息；其中，所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
可选地，所述收发器还包括第三单元，用于根据所述第一控制信息的指示，监听所述第二频点的PSCCH并解调获得第三控制信息，或者，用于接收所述第二频点的PSSCH，或者，用于监听所述第二频点的PSCCH解调获得第三控制信息并接收所述第二频点的PSSCH。
可选地，所述第三控制信息包括所述第二频点的PSSCH的资源指示信息。
可选地，所述UE还包括处理器，用于根据所述第三控制信息的指示，控制所述收发器接收所述第二频点的PSSCH；或者，用于将所述第三控制信息指示的所述第二频点的PSSCH资源与所述第一控制信息指示的所述第二频点的PSSCH资源进行对比；当二者不同时，执行预设操作。
可选地，所述处理器还用于在所述第一控制信息和/或第三控制信息指示的频点中选择一个或多个频点接收PSSCH。
可选地，所述处理器根据优先级、QoS、传输模式中的至少之一选择一个或多个频点接收PSSCH。
可选地，所述收发器还用于上报所述第二频点上可用的资源。
第五方面，提供一种UE，包括收发器、处理器、总线以及存储器，收发器用于与其他UE进行通信交互，处理器被配置为支持执行上述第一方面中UE相应的功能；存储器与处理器耦合，其保存上述第一方面中UE必要的程序指令和数据。
第六方面，提供一种UE，包括收发器、处理器、总线以及存储器，收发器用于与其他UE进行通信交互，处理器被配置为支持执行上述第二方面中UE相应的功能。存储器与处理器耦合，其保存上述第二方面中UE必要的程序指令和数据。
第七方面，提供一种计算机可读介质，其上存储有指令程序，当所述指令程序被处理器执行时实现前述任一用于UE之间通信的方法。
本公开实施例中，发送端UE可以跨频点进行资源分配或预留，接收端UE可以只在其中一个频点资源感知与盲检测，以获得其他频点的资源分配或预留结果，从而可以解决UE多频点发送或接收能力受限，UE间收发能力不匹配等问题。对于单个UE来说，通过在一个频点进行获取其他频点的资源分配/预留结果，可以避免多个频点各自独立资源感知导致的收发冲突问题。由于UE可以驻留在任一频点获取其他频点的资源分配/预留结果，通过分配UE在不同频点做资源感知，可以支持多频点间负载均衡，避开干扰，且有利于UE选择最好的频段进行收发。当UE使用sidelink进行V2X业务时，即使UE多频点发送或接收能力受限，也可以确保不同的V2X业务能够同时进行。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是UE间通信的一个可选示意流程；
图2是发送端UE的一个可选示意框图；
图3是接收端UE的一个可选示意框图；
图4是发送端UE的另一个可选示意框图；
图5是接收端UE的另一个可选示意框图；
图6是UE间通信的一个可选示意图；
图7是UE间通信的一个可选示意图；
图8是UE间通信的一个可选示意图。
具体实施方式
以下描述和附图充分地示出本公开的具体实施方案，以使本领域的技术人员能够实践它们。其他实施方案可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选地，并且操作的顺序可以变化。一些实施方案的部分和特征可以被包括在或替换其他实施方案的部分和特征。本公开的实施方案的范围包括权利要求书的整个范围，以及权利要求书的所有可获得的等同物。在本文中，各实施方案可以被单独地或总地用术语“公开”来表示，这仅仅是为了方便，并且如果事实上公开了超过一个的实施方案，不是要自动地限制该应用的范围为任何单个实施方案或实施方案构思。本文中，诸如第一和第二等之类的关系术语仅仅用于将一个实体或术语与另一个实体或术语区分开来，而不要求或者暗示这些实体或术语之间存在任何实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法或者设备中还存在另外的相同要素。本文中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的方法、产品等而言，由于其与实施例公开的方法部分相对应，所以描述的比较简单，相关之处参见方法部分说明即可。
本文的实施例可以由针对下述至少一个无线接入系统公开的标准文件支持：第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)、3GPP LTE、 高级LTE(LTE-A)、第三代合作伙伴计划2(3rd Generation Partnership Project2，3GPP2)、电气与电子工程师协会(Institute of Electrical and Electronics Engineers，IEEE)802。未被描述以阐明本文的技术特征的步骤或者部分可以由那些文件支持。此外，可以由标准文件解释本文中的所有术语。
本文中，UE包括V2X通信标准中规定的汽车、驾驶员的移动终端以及行人的移动终端。此外，对于V2X中规定的路侧单元(Road Side Unit，RSU)除非另有说明，也可以是本文中的UE。
本文中，发送端第一用户设备(UE1)和接收端第二用户设备(UE2)、第三用户设备(UE3)可被统称为UE。
本文中的频点，应当做广泛的理解，例如，每个频点可以是一个CC，或者是一个带宽部分(Bandwidth part，BWP)，或者是一个资源池等等。
本文中，符号/表示或的关系，“A和/或B”表示三种情况：A或B，或，A和B。例如，“第一频点和/或第二频点”表示：第一频点或第二频点，或，第一频点和第二频点；“频点指示信息和/或资源指示信息”表示：频点指示信息或资源指示信息，或，频点指示信息和资源指示信息，等等。
本文中，频点指示信息用于指示相应的频点。例如，第一频点的频点指示信息是用于指示第一频点，第二频点的频点指示信息用于指示第二频点，等等。
本文中，资源指示信息用于指示相应频点/信道上被分配/预留的资源。例如，第一频点的资源指示信息是用于指示第一频点被分配/预留的资源，第二频点的资源指示信息用于指示第二频点被分配/预留的资源，等等。
图1示出一种可选的用于UE之间通信的方法。
步骤11，UE1确定第一频点的物理控制信道的资源。
在不同的通信系统中，在不同的标准规范中会有多种物理控制信道。本文中，物理控制信道泛指物理层能够用于传送资源指示信息的信道。
可选地，物理控制信道包括PSCCH。
可选地，发送端UE确定第一频点的PSCCH资源的方式包括，发送端UE根据网络侧的调度或配置确定第一频点的PSCCH资源，或者，发送端UE在设定的PSCCH资源池中竞争，选择确定第一频点的PSCCH资源。同 理，发送端UE也可以通过网络侧的调度或配置或在PSSCH资源池中竞争，确定第一频点的PSSCH资源。
步骤12，UE1在第一频点的物理控制信道上发送第一控制信息。其中，第一控制信息包括第二频点的频点指示信息和/或资源指示信息。第二频点的频点指示信息用于指示第二频点，第二频点的资源指示信息用于指示第二频点被分配/预留的资源。这样，可以使接收端UE在第一频点获得第一控制信息后，根据第一控制信息的指示获得跨频点的资源分配/预留信息。
可选地，第二频点被分配/预留的资源包括：PSSCH资源，或，PSCCH资源，或，PSSCH资源和PSCCH资源。
可选地，被分配/预留的资源包括资源的时域，或，频域，或，空域，或，时域和频域，或，时域和空域，或，频域和空域，或，时域、频域和空域。其中，资源的时域包括偏移，图样(pattern)，持续时间和周期中的至少一项；资源的频域包括子载波频率、子载波间隔和资源块位置中的至少一项；资源的空域包括天线波束信息。
其中，UE在第一频点的物理控制信道上发送控制信息的方式有很多。可选地，UE在第一频点的PSCCH上发送旁链路控制信息(Sidelink Control Information，SCI)。其中，SCI包括第二频点的频点指示信息和/或资源指示信息。可选地，UE在第一频点的PSCCH上发送调度指示(Scheduling Assignment，SA)。其中，SA包括第二频点的频点指示信息和/或资源指示信息。
步骤13，UE1在第二频点发送相关信息。
可选地，当第二频点被分配/预留PSSCH资源时，UE1在第二频点的PSSCH上发送数据。
可选地，当第二频点被分配/预留PSCCH资源时，UE1在第二频点的PSCCH上发送SCI。其中，SCI包括第二频点的PSSCH的资源指示信息。
可选地，当第二频点被分配/预留PSSCH资源和PSCCH资源时，UE1在第二频点的PSSCH上发送数据并在PSCCH上发送SCI。其中，SCI包括第二频点的PSSCH的资源指示信息。
步骤14，UE2在第一频点感知和/或监听物理控制信道，获得第一控制信 息。其中，第一控制信息包括第二频点的频点指示信息和/或资源指示信息。
需要指出的是，监听物理控制信道是接收端UE可以采用的一种可选检测方式，盲检测是接收端UE可以采用的另一种可选检测方式。本文中，可以对监听物理控制信道和盲检测物理控制信道做一致性的理解。也即，本文中，监听物理控制信道也包含盲检测物理控制信道这一技术手段。
UE2在第一频点感知物理控制信道，或，UE2在第一频点监听物理控制信道，或，UE2在第一频点监听和感知物理控制信道，可获得第一控制信息。
可选地，物理控制信道包括PSCCH，第一控制信息包括SCI或SA。
可选地，第二频点被分配/预留的资源包括PSSCH资源，或，PSCCH资源，或，PSSCH资源和PSCCH资源。
步骤15，UE2根据第一控制信息的指示，在第二频点接收相关信息。
可选地，当第一控制信息包括第二频点的PSCCH的资源指示信息时，UE2监听第二频点的PSCCH并解调获得第三控制信息。其中，第三控制信息包括第二频点的PSSCH的资源指示信息。UE2根据第三控制信息的指示，接收第二频点的PSSCH，接收UE1发送的数据。
可选地，当第一控制信息包括第二频点的PSSCH的资源指示信息时，UE2接收第二频点的PSSCH。
可选地，当第一控制信息包括第二频点的PSCCH和PSSCH的资源指示信息时，UE2监听第二频点的PSCCH解调获得第三控制信息并接收第二频点的PSSCH。由于第一控制信息可以指示第二频点的PSSCH资源，第三控制信息也可以指示第二频点的PSSCH资源，这样UE2可以分别从第一控制信息和第三控制信息获得第二频点的PSSCH资源指示信息。这种情况下，UE2可以通过将第三控制信息指示的第二频点的PSSCH资源与第一控制信息指示的第二频点的PSSCH资源进行对比，达到传输校验的目的。当二者相同时，表明UE2和UE1之间的信息传输是正确的。当二者不同时，表明UE2和UE1之间的信息传输出现错误，此时需要按预置的策略执行相关操作，例如，放弃继续接收第二频点的PSSCH，或者，重新接收第二频点的PSCCH或PSSCH等等。
UE2根据第一控制信息和/或第三控制信息的指示，可以获得多个频点的 资源分配/预留信息。当UE2能够支持所有这些频点的同时接收/发送时，UE2可以在所有这些频点上接收/发送数据。当频点数量超过UE2所能支持的同时接收/发送的频点数量时，可选地，UE2可以在第一控制信息和/或第三控制信息指示的频点中选择一个或多个频点接收PSSCH。UE2在未被选择的频点将放弃接收PSSCH。这样，UE2可以选择最重要的资源进行数据收发，不仅能够充分利用所有可用的频谱资源，而且不会错过其他UE发送的数据。可选地，UE2根据优先级、QoS和传输模式中的一种或组合选择一个或多个频点接收PSSCH。
可选地，优先级可以是频点的优先级或是传输业务的优先级。
UE2获得优先级、QoS、传输模式的方式有多种。
可选地，第一控制信息包括优先级、QoS、传输模式中的一个或多个。UE2可以通过第一控制信息获得这些信息。
可选地，UE2可以通过高层配置获得优先级、QoS、传输模式中的一个或多个。
可选地，优先级和/或传输模式为预定义的。
此外，UE2根据第一控制信息和/或第三控制信息的指示获得多个频点的资源分配/预留信息后，可以确定第二频点上可用的资源和不可用的资源。可选地，UE2将第二频点上可用的资源上报给高层。
可选地，第一频点和第二频点为同一sidelink传输模式的频点。例如，第一频点和第二频点均为LTE sidelink传输模式的CC/BWP，或，均为NR sidelink传输模式的CC。
可选地，第一频点和第二频点为不同sidelink传输模式的频点。例如，第一频点为LTE sidelink传输模式的CC/BWP，第二频点为NR sidelink传输模式的CC/BWP；或者，第一频点为NR sidelink传输模式的CC/BWP，第二频点为LTE sidelink传输模式的CC/BWP。UE可以在LTE sidelink传输模式的CC/BWP上发送SCI以指示NR sidelink传输模式的CC/BWP的分配或预留。因此，UE可以在LTE sidelink传输模式的CC/BWP上进行感知，盲检测基本安全类业务的同时，获取NR sidelink传输模式的CC/BWP上分配给高级V2X业务的资源。
采用前述可选实施例，发送端UE可以跨频点进行资源分配或预留，接收端UE可以只在一个频点进行资源感知与盲检测，以获得其他频点的资源分配或预留结果，从而可以解决UE多频点发送或接收能力受限，UE间收发能力不匹配等问题。对于单个UE来说，通过在一个频点进行获取其他频点的资源分配/预留结果，可以避免多个频点各自独立资源感知导致的收发冲突问题。由于UE可以驻留在任一频点获取其他频点的资源分配/预留结果，通过分配UE在不同频点做资源感知，可以支持多频点间负载均衡，避开干扰，且有利于UE选择最好的频段进行收发。当UE使用sidelink进行V2X业务时，即使UE多频点发送或接收能力受限，也可以确保不同的V2X业务能够同时进行。
在另一可选实施例中，UE1还可以在第一频点的物理控制信道上发送第二控制信息。第二控制信息包括第一频点的频点指示信息和/或资源指示信息。第一频点的频点指示信息用于指示第一频点，第一频点的资源指示信息用于指示第一频点被分配/预留的资源。
该实施例中，UE1分别通过第一控制信息和第二控制信息发送跨频点的资源指示信息和本频点的资源指示信息。
在一可选方式中，第二控制信息采用标准规范的控制信息格式，包括标准规范的SCI；第一控制信息也采用标准规范的控制信息格式，包括标准规范的SCI。这样，多个控制信息都携带有资源指示信息，且多个控制信息的格式和大小均相同。为使接收端UE能够区分各控制信息所对应的频点，可选地，UE1按设定顺序发送多个控制信息。例如，UE1发送的第一个控制信息为对应本频点的第二控制信息，发送的第二个控制信息为对应跨频点的第一控制信息。UE2可以根据接收顺序确定各控制信息所对应的频点，区分第一控制信息和第二控制信息。该方式无需对相关技术控制信息的格式进行改动，通过控制信息的发送顺序指示每个控制信息所对应的频点。
在另一可选方式中，对标准规范的控制信息进行微小的修改。可选地，在标准规范的控制信息中增加频点指示信息。例如，可以将标准规范的控制信息中的保留比特(reserved bit)用于频点指示。UE1在第一频点的物理控制信道上发送的第一控制信息中包括第二频点的频点指示信息，第二控制信 息中包括第一频点的频点指示信息。UE2可以根据各控制信息中的频点指示信息确定各控制信息所对应的频点，区分第一控制信息和第二控制信息。该方式通过对标准规范的控制信息进行微小改动，即可指示每个控制信息所对应的频点。
在另一可选方式中，对用于第一频点自调度的第二控制信息可以采用标准规范的控制信息，包括标准规范的SCI；对用于第二频点跨频调度的第一控制信息，可基于对标准规范的控制信息(包括标准规范的SCI)的修改确定。
在另一可选实施例中，UE1在第一频点的物理控制信道上发送的第一控制信息，除第二频点的资源指示信息外，还包括其它频点的资源指示信息。例如，第一控制信息还包括第一频点的资源指示信息，或，第一频点和其它频点的资源指示信息。当第一控制信息中包括两个或更多频点的资源指示信息时，第一控制信息可基于对标准规范的控制信息(包括标准规范的SCI)的修改确定。
基于对标准规范的控制信息(包括标准规范的SCI)的修改确定第一控制信息的方式有多种。可选地，第一控制信息和标准规范的控制信息的格式或大小相同，或者，第一控制信息和第二控制信息的格式和大小均不同。当第一控制信息和标准规范的控制信息的格式或大小相同时，第一控制信息可以采用多种方式指示第二频点的资源。
可选地，标准规范的控制信息中独立的域可被用作频点指示信息和/或资源指示信息。
可选地，标准规范的控制信息中保留比特(reserved bit)可被用作频点指示信息和/或资源指示信息。
可选地，标准规范的控制信息中设定的域可被用作频点指示信息和/或资源指示信息。
可选地，频点指示信息和/或资源指示信息与至少一个其他的域联合编码。
可选地，标准规范的控制信息中被用作频点指示信息和/或资源指示信息的特定域可以是独立编码的，也可以是联合编码的。当指示域是联合编码的时，指示域还可用于指示：传输类型、业务类型、传输优先级、应答信息(如 ACK/NACK)、混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)进程号、资源分配和调制与编码策略MCS中的至少一项。也就是说频点指示信息和/或资源指示信息与传输类型、业务类型、传输优先级、应答信息、HARQ进程号、资源分配和调制与编码策略MCS中的至少一项联合编码。
可选地，频点指示信息和/或资源指示信息用于加扰CRC。在通过CRC加扰/解扰获得频点指示信息和/或资源指示信息的可选实施方式中，接收端UE可以通过网络侧的调度配置或其它方式预先获得一个或多个可用频点的频点指示信息(例如频点1、频点2和频点3的频点指示信息)，及可用频点上可用资源的资源指示信息(例如频点1上可用资源的资源指示信息，频点2上可用资源的资源指示信息和频点3上可用资源的资源指示信息)。这样，当接收端UE收到发送端UE发送的信息后，可以依次采用各频点的频点指示信息和/或各频点上可用资源的资源指示信息对接收的信息进行CRC解扰。能够正确解扰接收的信息的指示信息，即为发送端UE发送的频点指示信息和/或资源指示信息。可选地，接收端UE可以根据优先级、Qos、传输模式中的至少之一，依次对各频点进行CRC解扰。
在另一可选实施例中，用于UE之间通信的方法还包括UE1确定第二频点。其中，确定第二频点的方式有很多，并没有常规或者通用的方式。可选地，按高层的配置或业务需求确定第二频点。可选地，按配置的优先级选择第二频点。可选地，按信号强度或质量选择第二频点。可选地，按频点的干扰情况或占用比率选择第二频点。可选地，按网络配置确定第二频点。可选地，随机选择第二频点。可选地，按伪随机函数分配第二频点。同理，也可以采用上述可选方式确定第一频点。
下面以频点是CC为例，更具体地说明本文中用于UE之间通信的方法。
在一可选实施例中，如图6所示，UE1、UE2与UE3都配置并启用了sidelink进行传输。UE1配置有两个CC，分别为CC1和CC2。CC1与CC2可以是同一通信系统的sidelink CC。例如，CC1和CC2都是LTE或NR的sidelink CC；也可以是不同的模式，例如是CC1是LTE sidelink，CC2是NR sidelink。
UE1在CC1的PSCCH上发送SCI-1，在CC2的PSCCH上发送SCI-2。 SCI-1和SCI-2都包括CC2上PSSCH的资源指示信息。SCI-1中包括跨频指示信息，指示CC2上的资源分配。
UE2在CC1上感知并盲检测PSCCH，解调得到SCI-1。SCI-1指示CC2上分配有PSSCH的资源。UE2根据指示接收并解调CC2上的PSSCH。
UE3在CC2上感知并盲检测PSCCH，解调到SCI-2。SCI-2指示CC2上分配有PSSCH的资源。UE3根据指示接收并解调CC2上的PSSCH。
本可选实施例中，每个频点以CC为例说明，但也适用于BWP或资源池等方式。SCI中指示资源的时域，和/或，频域，和/或，空域等信息。
在另一可选实施例中，如图7所示，UE1、UE2与UE3都配置并启用sidelink进行传输。UE1配置有两个CC，分别为CC1和CC2，其中CC1是LTE sidelink，CC2是NR sidelink。UE1在CC1的PSCCH上发送SCI-1，在CC2的PSCCH上发送SCI-2。其中，SCI-1包括CC2上SCI-2的指示信息，SCI-2指示分配相同CC上的PSSCH。
UE2在CC1上感知并盲检测PSCCH，解调到SCI-1，根据SCI-1的指示接收CC2上的PSCCH并解调获得SCI-2，根据SCI-2的指示接收并解调CC2上的PSSCH。
UE3在CC2上感知并盲检测PSCCH，解调到SCI-2。SCI-2指示CC2上分配有PSSCH。UE3根据指示接收并解调CC2的PSSCH。
在另一可选实施例中，如图8所示，UE1、UE2与UE3都配置并启用sidelink进行传输。UE1配置了两个CC，其中CC1是LTE sidelink，CC2是NR sidelink。
UE1在CC1的PSCCH上发送SCI-1，在CC2的PSCCH上发送SCI-2。其中，SCI-1指示预留CC2上的资源用于后续传输，该资源用于PSCCH与PSSCH一起复用传输。在预留的资源处，SCI-2指示实际分配的PSSCH。
UE2在CC1上感知并盲检测PSCCH，解调到SCI-1，根据SCI-1指示获得CC2上UE1预留的资源。UE2在CC2上预留的资源处检测PSCCH，解调到SCI-2，进一步根据SCI-2指示接收并解调CC2上的PSSCH。
UE3在CC2上感知并盲检测PSCCH，解调到SCI-2。SCI-2指示CC2上分配有PSSCH。UE3根据指示接收并解调CC2上的PSSCH。
前述可选实施例虽然都是以2个CC为例进行说明，但该方法同样适用于更多的CC。
采用前述可选实施例，发送端UE可以跨频点进行资源分配或预留，接收端UE可以只在一个频点进行资源感知与盲检测，以获得其他频点的资源分配或预留结果，从而可以解决UE多频点发送或接收能力受限，UE间收发能力不匹配等问题。对于单个UE来说，通过在一个频点进行获取其他频点的资源分配/预留结果，可以避免多个频点各自独立资源感知导致的收发冲突问题。由于UE可以驻留在任一频点获取其他频点的资源分配/预留结果，通过分配UE在不同频点做资源感知，可以支持多频点间负载均衡，避开干扰，且有利于UE选择最好的频段进行收发。当UE使用sidelink进行V2X业务时，即使UE多频点发送或接收能力受限，也可以确保不同的V2X业务能够同时进行。
图2示出发送端UE的一个示意结构，该发送端UE包括处理器S1和收发器S2。处理器S1用于确定第一频点的物理控制信道资源，收发器S2用于在第一频点的物理控制信道上发送第一控制信息。可选地，收发器S2还用于在第一频点的物理控制信道上发送第二控制信息。这样，可以使接收端UE在第一频点获得第一控制信息后，根据第一控制信息的指示获得跨频点的资源分配/预留信息。
可选地，物理控制信道包括PSCCH。
在第一频点的物理控制信道上发送控制信息的方式有很多。可选地，收发器S2在第一频点的PSCCH上发送SCI。其中，SCI包括第二频点的频点指示信息和/或资源指示信息。可选地，UE在第一频点的PSCCH上发送SA。其中，SA包括第二频点的频点指示信息和/或资源指示信息。
可选地，第二频点被分配/预留的资源包括PSCCH资源，或者，PSSCH资源，或者，PSCCH资源和PSSCH资源。
可选地，确定第一频点的PSCCH资源的方式包括，根据网络侧的调度配置确定第一频点的PSCCH的资源，或者，在设定的PSCCH资源池中竞争，选择确定第一频点的PSCCH的资源。同理，也可以通过网络侧的调度配置或在PSSCH资源池中竞争，确定第一频点的PSSCH资源。
可选地，收发器S2还用于在发送第一控制信息后，在第二频点的PSSCH上发送数据；或者，在第二频点的PSCCH上发送控制信息；或者，在第二频点的PSSCH上发送数据并在PSCCH上发送控制信息。
可选地，当第二频点被分配/预留PSSCH资源时，收发器S2在第二频点的PSSCH上发送数据。
可选地，当第二频点被分配/预留PSCCH资源时，收发器S2在第二频点的PSCCH上发送SCI。其中，SCI包括第二频点的PSSCH的资源指示信息。
可选地，当第二频点被分配/预留PSSCH资源和PSCCH资源时，收发器S2在第二频点的PSSCH上发送数据并在PSCCH上发送SCI。其中，SCI包括第二频点的PSSCH的资源指示信息。
可选地，处理器S2还用于通过如下一种或多种方式确定第一频点和/或第二频点：
按高层的配置确定第一频点和/或第二频点；
按业务需求选择第一频点和/或第二频点；
按配置的优先级选择第一频点和/或第二频点；
按信号强度或质量选择第一频点和/或第二频点；
按频点的干扰情况或占用比率选择第一频点和/或第二频点；
按网络配置确定第一频点和/或第二频点；
随机选择或按伪随机函数确定第一频点和/或第二频点。
在另一可选实施例中，收发器S2还可以在第一频点的物理控制信道上发送第二控制信息。该实施例中，发送端UE分别通过第一控制信息和第二控制信息发送跨频点的资源指示信息和本频点的资源指示信息。
在另一可选实施例中，收发器S2在第一频点的物理控制信道上发送的第一控制信息，除第二频点的资源指示信息外，还包括其它频点的资源指示信息。例如，第一控制信息还包括第一频点的资源指示信息，或，第一频点和其它频点的资源指示信息。当第一控制信息中包括两个或更多频点的资源指示信息时，第一控制信息可基于对标准规范的控制信息(包括标准规范的SCI)的修改确定。
图3示出接收端UE的一个示意结构，该接收端UE包括收发器S3，收 发器S3包括第一单元S31和第二单元S32。
第一单元S31用于在第一频点感知和/或监听物理控制信道，第二单元S32用于从物理控制信道获得第一控制信息。
可选地，物理控制信道包括PSCCH，第一控制信息包括SCI或SA。
可选地，第二频点被分配/预留的资源包括PSSCH资源，或，PSCCH资源，或，PSSCH资源和PSCCH资源。
可选地，收发器S3还包括第三单元。第三单元用于根据第一控制信息的指示监听第二频点的PSCCH并解调获得第三控制信息，或者，用于接收第二频点的PSSCH，或者，用于监听第二频点的PSCCH解调获得第三控制信息并接收第二频点的PSSCH。其中，第三控制信息包括第二频点的PSSCH的资源指示信息。
可选地，接收端UE还包括处理器。处理器用于根据第三控制信息的指示控制收发器S3接收第二频点的PSSCH；或者，用于将第三控制信息指示的第二频点的PSSCH资源与第一控制信息指示的第二频点的PSSCH资源进行对比；二者不同时，执行预设操作。
接收端UE根据第一控制信息和/或第三控制信息的指示，可以获得多个频点的资源分配/预留信息。当接收端UE能够支持所有这些频点的同时接收/发送时，接收端UE可以在所有这些频点上接收/发送数据。当频点数量超过接收端UE所能支持的同时接收/发送的频点数量时，可选地，接收端UE的处理器可以在第一控制信息和/或第三控制信息指示的频点中选择一个或多个频点接收PSSCH。接收端UE在未被选择的频点将放弃接收PSSCH。这样，接收端UE可以选择最重要的资源进行数据收发，不仅能够充分利用所有可用的频谱资源，而且不会错过其他UE发送的数据。可选地，接收端UE的处理器可根据优先级、服务质量QoS和传输模式中的一种或组合选择一个或多个频点接收PSSCH。
可选地，优先级可以是频点的优先级或是传输业务的优先级。
UE2获得优先级、QoS、传输模式的方式有多种。
可选地，第一控制信息包括优先级、QoS、传输模式中的一个或多个。UE2可以通过第一控制信息获得这些信息。
可选地，UE2可以通过高层配置获得优先级、QoS、传输模式中的一个或多个。
可选地，优先级和/或传输模式为预定义的。
此外，接收端UE根据第一控制信息和/或第三控制信息的指示获得多个频点的资源分配/预留信息后，可以确定第二频点上可用的资源和不可用的资源。可选地，接收端UE的收发器S3可将第二频点上可用的资源上报给高层。
可选地，当第一控制信息包括第二频点的PSCCH的资源指示信息时，第三单元监听第二频点的PSCCH并解调获得第三控制信息。其中，第三控制信息包括第二频点的PSSCH的资源指示信息。第三单元根据第三控制信息的指示，接收第二频点的PSSCH，接收发送端UE发送的数据。
可选地，当第一控制信息包括第二频点的PSSCH的资源指示信息时，第三单元接收第二频点的PSSCH。
可选地，当第一控制信息包括第二频点的PSCCH和PSSCH的资源指示信息时，第三单元监听第二频点的PSCCH解调获得第三控制信息并接收第二频点的PSSCH。由于第一控制信息可以指示第二频点的PSSCH资源，第三控制信息也可以指示第二频点的PSSCH资源，这样处理器可以分别从第一控制信息和第三控制信息获得第二频点的PSSCH资源指示信息。这种情况下，处理器可以通过将第三控制信息指示的第二频点的PSSCH资源与第一控制信息指示的第二频点的PSSCH资源进行对比，达到传输校验的目的。当二者相同时，表明发送端UE和接收端UE之间的信息传输时准确的。当二者不同时，表明发送端UE和接收端UE之间的信息传输出现错误，此时需要按预置的策略执行相关操作，例如，放弃继续接收第二频点的PSSCH，或者，重新接收第二频点的PSCCH或PSSCH等等。
可选地，第一频点和第二频点为同一sidelink传输模式的频点。例如，第一频点和第二频点均为LTE sidelink传输模式的CC/BWP，或，均为NR sidelink传输模式的CC。
可选地，第一频点和第二频点为不同sidelink传输模式的频点。例如，第一频点为LTE sidelink传输模式的CC/BWP，第二频点为NR sidelink传输模式的CC/BWP；或者，第一频点为NR sidelink传输模式的CC/BWP，第二频 点为LTE sidelink传输模式的CC/BWP。UE可以在LTE sidelink传输模式的CC/BWP上发送SCI以指示NR sidelink传输模式的CC/BWP的分配或预留。因此，UE可以在LTE sidelink传输模式的CC/BWP上进行感知，盲检测基本安全类业务的同时，获取NR sidelink传输模式的CC/BWP上分配给高级V2X业务的资源。
采用前述可选实施例，发送端UE可以跨频点进行资源分配或预留，接收端UE可以只在一个频点进行资源感知与盲检测，以获得其他频点的资源分配或预留结果，从而可以解决UE多频点发送或接收能力受限，UE间收发能力不匹配等问题。对于单个UE来说，通过在一个频点进行获取其他频点的资源分配/预留结果，可以避免多个频点各自独立资源感知导致的收发冲突问题。由于UE可以驻留在任一频点获取其他频点的资源分配/预留结果，通过分配UE在不同频点做资源感知，可以支持多频点间负载均衡，避开干扰，且有利于UE选择最好的频段进行收发。当UE使用sidelink进行V2X业务时，即使UE多频点发送或接收能力受限，也可以确保不同的V2X业务能够同时进行。
在一可选方式中，第二控制信息采用标准规范的控制信息格式，包括标准规范的SCI；第一控制信息也采用标准规范的控制信息格式，包括标准规范的SCI。这样，多个控制信息都携带有资源指示信息，且多个控制信息的格式和大小均相同。为使接收端UE能够区分各控制信息所对应的频点，可选地，发送端UE的收发器S2按设定顺序发送多个控制信息。例如，收发器S2发送的第一个控制信息为对应本频点的第二控制信息，发送的第二个控制信息为对应跨频点的第一控制信息。接收端UE的收发器S3可以根据接收顺序确定各控制信息所对应的频点，区分第一控制信息和第二控制信息。该方式无需对相关技术控制信息的格式进行改动，通过控制信息的发送顺序指示每个控制信息所对应的频点。
在另一可选方式中，对标准规范的控制信息进行微小的修改。可选地，在标准规范的控制信息中增加频点指示信息。例如，可以将标准规范的控制信息中的保留比特(reserved bit)用于频点指示。发送端UE的收发器S2在第一频点的物理控制信道上发送的第一控制信息中包括第二频点的指示信息， 第二控制信息中包括第一频点的指示信息。接收端UE的处理器可以根据各控制信息中的频点指示信息确定各控制信息所对应的频点，区分第一控制信息和第二控制信息。该方式通过对标准规范的控制信息进行微小改动，即可指示每个控制信息所对应的频点。
图4示出发送端UE的一个示意结构。一种UE，包括收发器101、处理器102、总线104以及存储器103，收发器101用于与其他UE进行通信交互，处理器102被配置为支持执行上述图1中发送端UE1相应的功能。存储器103与处理器102耦合，其保存图1中发送端UE1必要的程序指令和数据。
图5示出接收端UE的一个示意结构。一种UE，包括收发器201、处理器202、总线204以及存储器203，收发器201用于与其他UE进行通信交互，处理器202被配置为支持执行上述图1中接收端UE2相应的功能。存储器203与处理器202耦合，其保存图1中接收端UE2必要的程序指令和数据。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器，上述指令可由处理器执行以完成前文所述的方法。上述非临时性计算机可读存储介质可以是只读存储器(Read Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁带和光存储设备等。
本领域技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。所属技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本文所披露的实施例中，应该理解到，所揭露的方法、产品(包括但不限于装置、设备等)，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以 集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来控制相关的硬件来完成，所述的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、ROM或RAM等。
应当理解的是，附图中的流程图和框图显示了根据本公开的多个实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/ 或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。本公开并不局限于上面已经描述并在附图中示出的流程及结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (31)

  1. 一种用于用户设备之间通信的方法，包括：
    用户设备(UE)确定第一频点的物理控制信道资源；
    所述UE在所述第一频点的物理控制信道上发送第一控制信息；
    其中，所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
  2. 如权利要求1所述的方法，其中，所述第一控制信息还包括所述第一频点的频点指示信息和/或资源指示信息；所述第一频点的频点指示信息用于指示所述第一频点，所述第一频点的资源指示信息用于指示所述第一频点被分配/预留的资源。
  3. 如权利要求1所述的方法，还包括：所述UE在所述第一频点的物理控制信道上发送第二控制信息；其中，所述第二控制信息包括所述第一频点的频点指示信息和/或资源指示信息；所述第一频点的频点指示信息用于指示所述第一频点，所述第一频点的资源指示信息用于指示所述第一频点被分配/预留的资源。
  4. 如权利要求3所述的方法，其中，所述第一控制信息和第二控制信息的格式或大小相同；或者，所述第一控制信息和第二控制信息的格式和大小均不同。
  5. 如权利要求3所述的方法，其中，所述第一控制信息和第二控制信息的格式或大小相同时：
    所述第一控制信息中独立的域被用作频点指示信息和/或资源指示信息；或者，
    所述第一控制信息中保留比特(bit)被用作频点指示信息和/或资源指示信息；或者，
    所述第一控制信息中设定的域被用作频点指示信息和/或资源指示信息；或者，
    频点指示信息和/或资源指示信息与所述第一控制信息中至少一个其他 的域联合编码；或者，
    频点指示信息和/或资源指示信息用于加扰第一控制信息的循环冗余校验CRC。
  6. 如权利要求1至5任一项所述的方法，其中，所述物理控制信道包括物理旁链路控制信道(PSCCH)；所述第二频点被分配/预留的资源包括PSCCH资源，或者，物理旁链路共享信道(PSSCH)资源，或者，PSCCH资源和PSSCH资源。
  7. 如权利要求6所述的方法，其中，所述UE发送第一控制信息后，还包括：
    在所述第二频点的PSSCH上发送数据；或者，
    在所述第二频点的PSCCH上发送控制信息；或者，
    在所述第二频点的PSSCH上发送数据并在PSCCH上发送控制信息。
  8. 如权利要求1至5任一项所述的方法，还包括：所述UE通过如下一种或多种方式确定所述第一频点和/或第二频点：
    按高层的配置确定所述第一频点和/或第二频点；
    按业务需求选择所述第一频点和/或第二频点；
    按配置的优先级选择所述第一频点和/或第二频点；
    按信号强度或质量选择所述第一频点和/或第二频点；
    按频点的干扰情况或占用比率选择所述第一频点和/或第二频点；
    按网络配置确定所述第一频点和/或第二频点；
    随机选择所述第一频点和/或第二频点；
    按伪随机函数确定所述第一频点和/或第二频点。
  9. 如权利要求1至5任一项所述的方法，其中，每个频点为一个载波(CC)或一个带宽部分(BWP)或一个资源池。
  10. 一种用于用户设备之间通信的方法，包括：
    用户设备(UE)在第一频点感知和/或监听物理控制信道，获得第一控制信息；所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息；其中，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
  11. 如权利要求10所述的方法，其中，所述物理控制信道包括物理旁链路控制信道(PSCCH)；所述第二频点被分配/预留的资源包括PSCCH资源，或者，物理旁链路共享信道(PSSCH)资源，或者，PSCCH资源和PSSCH资源。
  12. 如权利要求10所述的方法，还包括：所述UE根据所述第一控制信息的指示，监听所述第二频点的物理旁链路控制信道PSCCH并解调获得第三控制信息；或者，
    所述UE根据所述第一控制信息的指示，接收所述第二频点的物理旁链路共享信道PSSCH；或者，
    所述UE根据所述第一控制信息的指示，监听所述第二频点的PSCCH解调获得第三控制信息并接收所述第二频点的PSSCH。
  13. 如权利要求12所述的方法，其中，所述第三控制信息包括所述第二频点的PSSCH的资源指示信息。
  14. 如权利要求13所述的方法，还包括：
    所述UE根据所述第三控制信息的指示，接收所述第二频点的PSSCH；或者，
    所述UE将所述第三控制信息指示的所述第二频点的PSSCH资源与所述第一控制信息指示的所述第二频点的PSSCH资源进行对比；当二者不同时，执行预设操作。
  15. 如权利要求12所述的方法，还包括：所述UE在所述第一控制信息和/或第三控制信息指示的频点中选择一个或多个频点接收PSSCH。
  16. 如权利要求15所述的方法，其中，所述UE根据优先级、服务质量(QoS)、传输模式中的至少之一选择一个或多个频点接收PSSCH。
  17. 如权利要求10至16任一项所述的方法，还包括：所述UE上报所述第二频点上可用的资源。
  18. 如权利要求10至16任一项所述的方法，其中，所述第一频点为第一旁链路(sidelink)传输模式的频点，所述第二频点为第二sidelink传输模式的频点；或者，所述第一频点和所述第二频点均为第一sidelink传输模式的频点。
  19. 一种用户设备，包括处理器和收发器，其中，
    所述处理器，用于确定第一频点的物理控制信道资源；和，
    所述收发器，用于在所述第一频点的物理控制信道上发送第一控制信息；
    其中，所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
  20. 如权利要求19所述的用户设备，其中，所述收发器还用于在所述第一频点的物理控制信道上发送第二控制信息；其中，所述第二控制信息包括所述第一频点的频点指示信息和/或资源指示信息；所述第一频点的频点指示信息用于指示所述第一频点，所述第一频点的资源指示信息用于指示所述第一频点被分配/预留的资源。
  21. 如权利要求19所述的用户设备，其中，所述物理控制信道包括物理旁链路控制信道(PSCCH)；所述第二频点被分配/预留的资源包括PSCCH资源，或者，物理旁链路共享信道(PSSCH)资源，或者，PSCCH资源和PSSCH资源。
  22. 如权利要求21所述的用户设备，其中，所述收发器还用于在发送第一控制信息后，在所述第二频点的PSSCH上发送数据；或者，在所述第二频点的PSCCH上发送控制信息；或者，在所述第二频点的PSSCH上发送数据并在PSCCH上发送控制信息。
  23. 如权利要求19至22任一项所述的用户设备，其中，所述处理器还用于通过如下一种或多种方式确定所述第一频点和/或第二频点：
    按高层的配置确定所述第一频点和/或第二频点；
    按业务需求选择所述第一频点和/或第二频点；
    按配置的优先级选择所述第一频点和/或第二频点；
    按信号强度或质量选择所述第一频点和/或第二频点；
    按频点的干扰情况或占用比率选择所述第一频点和/或第二频点；
    按网络配置确定所述第一频点和/或第二频点；
    随机选择或按伪随机函数确定所述第一频点和/或第二频点。
  24. 一种用户设备，包括收发器，其中，所述收发器包括：
    第一单元，用于在第一频点感知和/或监听物理控制信道；和，
    第二单元，用于从物理控制信道获得第一控制信息；
    其中，所述第一控制信息包括第二频点的频点指示信息和/或资源指示信息，所述第二频点的频点指示信息用于指示所述第二频点，所述第二频点的资源指示信息用于指示所述第二频点被分配/预留的资源。
  25. 如权利要求24所述的用户设备，其中，所述收发器还包括第三单元，用于根据所述第一控制信息的指示，监听所述第二频点的物理旁链路控制信道(PSCCH)并解调获得第三控制信息，或者，用于接收所述第二频点的物理旁链路共享信道(PSSCH)，或者，用于监听所述第二频点的PSCCH解调获得第三控制信息并接收所述第二频点的PSSCH。
  26. 如权利要求25所述的用户设备，其中，所述第三控制信息包括所述第二频点的PSSCH的资源指示信息。
  27. 如权利要求26所述的用户设备，其中，还包括处理器，用于根据所述第三控制信息的指示，控制所述收发器接收所述第二频点的PSSCH；或者，用于将所述第三控制信息指示的所述第二频点的PSSCH资源与所述第一控制信息指示的所述第二频点的PSSCH资源进行对比；当二者不同时，执行预设操作。
  28. 如权利要求27所述的用户设备，其中，所述处理器还用于在所述第一控制信息和/或第三控制信息指示的频点中选择一个或多个频点接收PSSCH。
  29. 如权利要求28所述的用户设备，其中，所述处理器根据优先级、服务质量(QoS)、传输模式中的至少之一选择一个或多个频点接收PSSCH。
  30. 如权利要求24至29任一项所述的用户设备，其中，所述收发器还用于上报所述第二频点上可用的资源。
  31. 一种计算机可读介质，其上存储有指令程序，其中，当所述指令程序被处理器执行时实现如权利要求1至18任意一项所述的用于用户设备之间通信的方法。
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