WO2024002134A1 - 用于无线通信系统中的电子设备和方法 - Google Patents

用于无线通信系统中的电子设备和方法 Download PDF

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Publication number
WO2024002134A1
WO2024002134A1 PCT/CN2023/103081 CN2023103081W WO2024002134A1 WO 2024002134 A1 WO2024002134 A1 WO 2024002134A1 CN 2023103081 W CN2023103081 W CN 2023103081W WO 2024002134 A1 WO2024002134 A1 WO 2024002134A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
antenna panel
reference signal
electronic device
user
Prior art date
Application number
PCT/CN2023/103081
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English (en)
French (fr)
Inventor
李浩进
Original Assignee
索尼集团公司
陈晋辉
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 索尼集团公司, 陈晋辉 filed Critical 索尼集团公司
Publication of WO2024002134A1 publication Critical patent/WO2024002134A1/zh

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Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Definitions

  • the present disclosure relates generally to electronic devices and methods for use in wireless communication systems, and specifically to techniques for wireless sidelink communications.
  • Wireless communication systems can use a variety of protocols and standards for data transmission between devices. These protocols and standards have experienced long-term development, including but not limited to the 3rd Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE) (for example, 4G communications), 3GPP New Radio (NR) (for example, 5G communications), and the IEEE 802.11 standard for wireless local area networks (WLAN) (also commonly referred to as Wi-Fi), among others.
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • NR 3GPP New Radio
  • Wi-Fi wireless local area networks
  • the communication interface between user equipment includes a PC5 interface.
  • the PC5 interface can be used for vehicle-to-everything (V2X) communications (which can include vehicle-to-vehicle (V2V) communications, vehicle-to-infrastructure (V2I) communications, vehicle-to-network (V2N) communications, vehicle-to-pedestrian (V2P) communications, etc.) , device-to-device (D2D) communication and other scenarios that can directly communicate between user devices.
  • V2X vehicle-to-everything
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-infrastructure
  • V2N vehicle-to-network
  • V2P vehicle-to-pedestrian
  • D2D device-to-device
  • the user equipment can perform wireless data transmission through the side link (SL).
  • the terminal device can transmit and receive reference signals using an antenna panel mounted thereon.
  • reference signals can be used to implement functions such as positioning. Therefore, it is desired
  • the present disclosure proposes electronic devices and methods for side-link communication in wireless communication systems.
  • the present disclosure proposes to use the time resources and/or frequency resources occupied by the reference signal to indicate the position of the antenna panel that sends the reference signal on the user equipment, so that the positioning performance in side-link communication is improved.
  • an electronic device for a first user equipment in a wireless communication system includes processing circuitry configured to cause the first user device to perform the following operations: receive signals from a third antenna panel mounted thereon of the second user device through a first antenna panel mounted thereon.
  • the position of the third antenna panel on the second user equipment is determined by the association relationship with one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal.
  • a method for a first user equipment in a wireless communication system includes receiving, through a first antenna panel mounted on the first user equipment, a reference signal transmitted by a third antenna panel mounted on the second user equipment, wherein the reference signal occupies a time resource and/or frequency
  • the resource is associated with the location of the third antenna panel on the second user equipment.
  • the method also includes based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal, Determine the location of the third antenna panel on the second user equipment.
  • an electronic device for a second user equipment in a wireless communication system including a processing circuit configured to cause the first user equipment to perform the following operations : Use the third antenna panel installed on the second user equipment to send a reference signal to the first user equipment.
  • the time resources and/or frequency resources occupied by the reference signal are related to the position of the third antenna panel on the second user equipment.
  • the first user equipment is connected based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequencies occupied by the reference signal. resources to determine the location of the third antenna panel on the second user equipment.
  • a method for a second user equipment in a wireless communication system includes: using a third antenna panel installed on the second user equipment to send a reference signal to the first user equipment, and the time resources and/or frequency resources occupied by the reference signal are the same as those of the third antenna panel on the second user equipment.
  • the location is associated so that the first user equipment is on the second user equipment based on the third antenna panel
  • the position of the third antenna panel on the second user equipment is determined based on the association between the position and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal.
  • a computer-readable storage medium storing one or more executable instructions, which when executed by one or more processors of an electronic device The electronic device is caused to perform methods according to various embodiments of the present disclosure.
  • a computer program product comprising executable instructions that, when executed by one or more processors of a computer, cause the computer to perform various aspects of the present disclosure. Example methods.
  • FIG. 1 shows an example scenario diagram of side-link communication in a wireless communication system according to an embodiment of the present disclosure.
  • Figure 2 illustrates an exemplary electronic device of a first user equipment for side-link communication according to an embodiment of the present disclosure.
  • FIG 3 illustrates an exemplary electronic device of a second user equipment for side-link communication according to an embodiment of the present disclosure.
  • FIG. 4 shows an example diagram of the correlation between reference signal time-frequency resources and antenna panel positions according to an embodiment of the present disclosure.
  • FIG. 5 shows a schematic diagram of a first example of positioning in side-link communication according to an embodiment of the present disclosure.
  • FIG. 6 shows a schematic diagram of a second example of positioning in side-link communication according to an embodiment of the present disclosure.
  • Figure 7 shows an interaction diagram between user equipments for side link communication according to an embodiment of the present disclosure.
  • FIG. 8 illustrates a flowchart of an example method of a first user equipment for side-link communications according to an embodiment of the present disclosure.
  • Figure 9 shows a flowchart of an example method of a second user equipment for side-link communication according to an embodiment of the present disclosure.
  • FIG. 10 is a block diagram of an example structure of a personal computer as an information processing device employable in the embodiment of the present disclosure
  • FIG. 11 is a block diagram showing an example of a schematic configuration of a smartphone to which the technology of the present disclosure can be applied.
  • FIG. 12 is a block diagram showing an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied.
  • words such as “first” and “second” are used to distinguish identical or similar items with basically the same functions and effects. Those skilled in the art should understand that words such as “first” and “second” do not limit the quantity, execution order or priority order, and “first” and “second” do not necessarily limit the terms “first” and “second”. of.
  • a wireless communication system may include a network device and user equipment, and the network device may provide communication services for one or more user equipments.
  • the term “network device” (or “base station”, “control device”) has the full broad meaning of its ordinary meaning. degree, and includes at least a wireless communication station that is part of a wireless communication system or radio system to facilitate communications.
  • the network device may be an eNB of the 4G communication standard, a gNB of the 5G communication standard, a remote radio head, a wireless access point, a drone control tower, or a communication device that performs similar functions.
  • “network device”, “base station” and “control device” may be used interchangeably, or the “network device” may be implemented as a part of the “base station”.
  • the following uses network equipment as an example to describe application examples in detail with the accompanying drawings.
  • the term "user equipment (UE)" or “terminal device” has the full breadth of its ordinary meaning and includes at least a terminal device that is part of a wireless communication system or radio system to facilitate communication.
  • the user equipment may be a mobile phone, a laptop computer, a tablet computer, a vehicle-mounted device (for example, a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed rail, etc.), a virtual reality device, a workshop device, an unmanned aerial vehicle Terminal devices or components thereof such as wireless devices, wearable devices, sensors, etc. while driving.
  • UE user equipment
  • terminal equipment may be used interchangeably, or “user equipment” may be implemented as a part of “terminal equipment”.
  • sending end in its full breadth of its usual meaning generally indicates the side that sends data in the communication system, which may be the network equipment/base station side or the user equipment/terminal equipment side.
  • receiving end has the full breadth of its ordinary meaning, and accordingly may indicate the side of the communication system that receives data, which may be the user equipment/terminal side or the network equipment/base station side.
  • sending end and the receiving end are user equipments, but this should not be understood as a limitation of the present disclosure.
  • the same device can serve as both a transmitter and a receiver.
  • FIG. 1 shows an example scenario diagram of side-link communication in a wireless communication system according to an embodiment of the present disclosure. It should be understood that Figure 1 illustrates only one of the many types and possible arrangements of wireless sidelink communications systems; features of the present disclosure may be implemented in any of the various systems as desired.
  • side link communication in the wireless communication system 100 involves communication between multiple user equipments.
  • two user equipments are shown in Figure 1: a first user equipment (shown as “UE1” in Figure 1) and a second user equipment (shown as “UE2" in Figure 1 ).
  • the first user equipment and the second user equipment may communicate directly without going through the network device (that is, both the sending end and the receiving end are user equipments), and the communication link between the two is called a side link.
  • the first user equipment and the second user equipment may be the same type of equipment or may be different types of equipment.
  • each user equipment eg, a first user equipment or a second user equipment
  • the one or more antenna panels may be installed on one of the user equipments. or multiple locations.
  • Figure 1 shows a scenario in which UE1 and UE2 respectively have two antenna panels.
  • the first user equipment has a first antenna panel (shown as “AP1” in Figure 1) and a second antenna panel (shown as “AP2” in Figure 1), while the second user equipment has a A three antenna panel (shown as “AP3” in Figure 1) and a fourth antenna panel (shown as "AP4" in Figure 1).
  • UE1 may receive reference signals sent from AP3 and AP4 of UE2 through AP1.
  • the reference signal may be a synchronization reference signal or a positioning reference signal, which may be used to implement functions such as positioning, such as determining the relative position relationship between UE1 and UE2.
  • each user equipment may have a greater or lesser number of antenna panels.
  • the antenna panels shown in Figure 1 are located at the front and rear of the user equipment, in practice, the antenna panels may be installed at any location on the user equipment, including but not limited to at the front (or head) of the user equipment. ), rear (or tail), middle, top, bottom, left, right, etc.
  • the positioning performance may be greatly affected.
  • UE1 as the receiving end, can receive the reference signal from AP3 of UE2 through AP1, and can also receive the reference signal from AP4 of UE2 through AP1. If the size of UE2 itself is large, then the locations of AP3 and AP4 on UE2 are likely to be far apart, so the distance between the two user equipments measured and estimated by the two has a large difference.
  • AP1 of UE1 and AP4 of UE2 can more accurately measure or estimate the normal driving distance d between the two user equipments. , otherwise it is likely to produce a distance error in the length of the vehicle body. This distance error is particularly severe when the distance between two user devices is small, reducing positioning accuracy.
  • the time resource/frequency resource of the reference signal is associated with the installation position of the antenna panel that sends the reference signal on the sending end user equipment (for example, , mapping). Therefore, the receiving end user equipment that receives the reference signal can determine the location of the antenna panel that sends the reference signal based on the predetermined association relationship and the time resource/frequency resource occupied by the reference signal, and thereby perform corresponding operations or calculation to ensure more precise positioning performance.
  • FIG. 2 illustrates an exemplary electronic device for a first user equipment in a wireless communication system according to an embodiment of the present disclosure.
  • the electronic device 200 shown in FIG. 2 may include various units to implement various embodiments according to the present disclosure.
  • electronic device 200 includes communication unit 202 and control unit 204 .
  • the electronic device 200 is implemented as the first user device itself or as a part thereof, or as a device related to the first user device or as a part of the device.
  • Various operations described below in conjunction with the first user equipment may be implemented by the units 202 and 204 of the electronic device 200 or other possible units.
  • the first user equipment may have one or more antenna panels mounted thereon (or attached).
  • the communication unit 202 of the electronic device 200 of the first user equipment may receive a reference signal transmitted by a third antenna panel mounted thereon of the second user equipment through the first antenna panel mounted thereon, wherein the reference signal
  • the time resource and/or frequency resource occupied by the signal is associated with the position of the third antenna panel on the second user equipment.
  • the control unit 204 of the electronic device may be based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequencies occupied by the above-mentioned received reference signals. resources to determine the location of the third antenna panel on the second user equipment.
  • FIG. 3 illustrates an exemplary electronic device 300 for a second user equipment in a wireless communication system according to an embodiment of the present disclosure.
  • the electronic device 300 shown in FIG. 3 may include various units to implement various embodiments according to the present disclosure.
  • electronic device 300 includes communication unit 302 and control unit 304 .
  • the electronic device 300 is implemented as the second user device itself or as a part thereof, or as a device associated with the second user device or as a part of the device.
  • Various operations described below in conjunction with the second user equipment may be implemented by the units 302 and 304 of the electronic device 300 or other possible units.
  • the second user equipment may have one or more antenna panels mounted thereon (or attached).
  • the communication unit 302 of the electronic device 300 of the second user equipment may send a reference signal to the first user equipment through a third antenna panel installed on the second user equipment, wherein the time resources and/or frequency resources occupied by the reference signal are the same as those of the first user equipment.
  • the location of the third antenna panel on the second user equipment is associated.
  • the above operation may cause the first user equipment to be based on the association relationship between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or occupied by the above-mentioned transmitted reference signal. Frequency resources are used to determine the location of the third antenna panel on the second user equipment.
  • control unit 304 of the electronic device 300 may instruct the communication unit 302 to notify the first user device in advance of the association relationship between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources.
  • User equipment Alternatively, the above-mentioned association relationship may be determined by default, or may be determined in advance by the network device. After being determined, the information is notified to each user equipment in the wireless communication system.
  • electronic devices 200 and 300 may be implemented at the chip level, or at the device level by including other external components (eg, radio links, antennas, etc.).
  • each electronic device may function as a communication device as a complete device.
  • processing circuitry may refer to various implementations of digital circuitry, analog circuitry, or mixed-signal (a combination of analog and digital) circuitry that perform functions in a computing system.
  • Processing circuitry may include, for example, circuits such as integrated circuits (ICs), application specific integrated circuits (ASICs), portions or circuits of a separate processor core, an entire processor core, a separate processor, such as a field programmable gate array (FPGA) A programmable hardware device, and/or a system including multiple processors.
  • ICs integrated circuits
  • ASICs application specific integrated circuits
  • FPGA field programmable gate array
  • an association relationship (sometimes also called a mapping relationship) is established between the time resource and/or frequency resource of the reference signal and the installation position of the antenna panel that transmits the reference signal on the transmitting end user equipment.
  • the time resources and/or frequency resources occupied by the reference signal can indicate the specific location (or relative location) of the antenna panel that sends the reference signal.
  • the receiving end user equipment that receives the reference signal can quickly and accurately determine the position of the antenna panel that sends the reference signal on the transmitting end user equipment based on the time resources and/or frequency resources occupied by the reference signal.
  • FIG. 4 shows an example diagram of the correlation between reference signal time-frequency resources and antenna panel positions according to an embodiment of the present disclosure.
  • the user equipment has two antenna panels mounted on the front and the rear, respectively called front antenna panel and rear antenna panel in the figure.
  • front and rear antenna panel in this disclosure only indicate relative positions.
  • the normal movement direction of the user device may be defined as "front”, or the head position of the user device that is generally considered to be the "front” may be defined.
  • the front antenna panel may be installed on the front bumper of the vehicle
  • the rear antenna panel may be installed on the rear bumper of the vehicle.
  • one subframe in the wireless communication system may include 14 OFDM symbols.
  • the horizontal line in Figure 4 The axis direction can represent time resources, the vertical axis direction can represent frequency resources, and a small square represents a resource element (Resource Element, RE).
  • the resource element can be regarded as the smallest time resource and/or frequency resource (sometimes referred to as time-frequency resource in this article) unit, which corresponds to one OFDM symbol in the time domain and corresponds to one subcarrier in the frequency domain.
  • the reference signal sent by the front antenna panel is associated with the time-frequency resource represented by the resource element marked with vertical hatching
  • the reference signal sent by the rear antenna panel is associated with the resource marked with diagonal hatching.
  • the time-frequency resources represented by the elements are associated.
  • association relationship can be notified in advance by the sending end user equipment to the receiving end user equipment in the form of a mapping table or the like.
  • this association relationship may also be determined by the system by default, or may be predetermined by the network device and then notified to each user device.
  • the notification message about the association relationship may be indicated via a physical layer message or a higher layer message (such as a MAC layer message).
  • FIG. 4 only shows an example of the association relationship (or mapping relationship) between the position of the antenna panel and one or more reference signal time-frequency resources.
  • the transmitting end user equipment may have a greater or lesser number of antenna panels located at one or more locations, and the location of each antenna panel may be associated with only time resources, only with frequency resources, or with Time resources and frequency resources are both related.
  • the sending end user equipment when transmitting the reference signal, the sending end user equipment needs to use the time-frequency resources corresponding to the position of the antenna panel on the user equipment according to the above association relationship to transmit.
  • the transmitting end user equipment can use different resource sets (Resource Sets) to determine reference signals sent through antenna panels at different locations.
  • the transmitting end user equipment can use different frequency layers (Frequency Layer) to determine the reference signals sent through antenna panels at different locations.
  • the receiving end user equipment can determine the antenna panel to send the reference signal based on the correlation between the antenna panel position and the time-frequency resource and the time-frequency resource occupied by the reference signal. The location on the sending user's device.
  • positioning performance can be improved by appropriately selecting the antenna panel of the transmitting end user equipment and the antenna panel of the receiving end user equipment to transmit and receive reference signals.
  • the operations involved in positioning in side-link communications include, but are not limited to, determining the relative positional relationship of multiple user equipments, measuring and estimating the distance between multiple user equipments, and inferring the current location of multiple user equipments. Or whether there is any abnormality in the movement, etc. Accordingly, two examples of positioning in side-link communication will be described below respectively with respect to these operations.
  • the technical solution of the present disclosure will be described by taking a side-link communication scenario in which both the first user equipment and the second user equipment are vehicles as an example.
  • the present disclosure is not limited to this specific type of communication between user equipments, but may be applicable to the scenario of positioning in side-link communication between multiple types of user equipments.
  • the second user equipment mainly used as a transmitter may have multiple antenna panels, and the first user equipment mainly used as a receiver may have one antenna panel or only utilize one of the multiple antenna panels.
  • An antenna panel enables a series of operations related to positioning.
  • FIG. 5 shows a schematic diagram of a first example of positioning in side-link communication according to an embodiment of the present disclosure.
  • the first user equipment is shown as UE1, with at least a first antenna panel (shown as AP1) installed thereon; the second user equipment is shown as UE2, with at least a third antenna mounted thereon panel (AP3) and the fourth antenna panel (AP4).
  • AP1 in the figure is located in the front of UE1
  • AP3 is located in the front of UE2
  • AP4 is located in the rear of UE2.
  • the time resources and/or frequency resources occupied by the reference signal sent by AP3 are associated with the position (eg, front) of AP3 on UE2, and the time resources occupied by the reference signal sent by AP4 and /or the frequency resource is associated with AP4's location on UE2 (eg, rear).
  • the association relationship between the position of AP3 on UE2 and one or more time resources and/or frequency resources and the association relationship between the position of AP4 on UE2 and one or more time resources and/or frequency resources can be It is determined by default, or may be notified to UE1 in advance by UE2.
  • UE1 can receive the reference signal sent by AP3 (or AP4) of UE2 through AP1, and can determine AP3 (or AP4) based on the correlation between the antenna panel position and the time-frequency resource and the time-frequency resource occupied by the reference signal. ) location on UE2.
  • the relative position of the first user equipment (UE1) and the second user equipment (UE2) can be determined, for example, the relative position relationship is determined.
  • a method of determining the relative position between UE1 and UE2 may include: UE1 receiving the first reference signal sent by AP3 of UE2 through AP1, and UE1 receiving the first reference signal sent by AP4 of UE2 through AP1.
  • second reference signal Based on the reception strengths of the first reference signal and the second reference signal, the front-to-back position relationship between UE1 and UE2 can be determined.
  • 500A when the strength of the first reference signal is less than the strength of the second reference signal, UE1 can determine to send the reference signal according to the time resource and/or frequency resource of the received reference signal. The position of the antenna panel on UE2, so it can be determined that UE1 is located at the rear of UE2.
  • 500B in the case where the strength of the first reference signal is greater than the strength of the second reference signal, UE1 may determine that it is located in front of UE2.
  • the strength of the reference signal referred to herein may include, but is not limited to, one of the following or a combination of multiple of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), reference signal signal quality Dry to noise ratio (SINR), etc.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • SINR reference signal signal quality Dry to noise ratio
  • another method of determining the relative position between UE1 and UE2 may include using the satellite navigation and positioning system GPS to roughly determine the front-to-back position relationship of the user equipment.
  • UE1 may receive a reference signal sent by an antenna panel in AP3 or AP4 of UE2 through AP1 for measuring the distance between UE1 and UE2.
  • the distance (distance) d between them usually refers to the distance between the front of the following vehicle and the rear of the leading vehicle.
  • 500A in the case where it is determined that UE1 is located at the rear of UE2, the distance d between the two user equipments may be measured and estimated by UE1 receiving the reference signal sent from AP4 of UE2 through AP1 ( Because AP4 is closer to UE1).
  • the distance d between the two user equipments can be measured and estimated by UE1 receiving the reference signal sent from AP3 of UE2 through AP1 (because AP3 is closer to UE1). It should be noted that in the latter case, since UE1 knows that AP1 is in front of itself, it can make appropriate adjustments when calculating distance d, such as subtracting its own device length (eg, vehicle length).
  • the location of the antenna panels in Figure 5 is merely an example and is not intended to be limiting.
  • the first antenna panel may also be located in the middle of the first user equipment, and then half of the length of the own equipment may be subtracted when measuring and estimating the distance d between the first user equipment and the second user equipment.
  • the first user equipment and the second user equipment may each use only one antenna panel to measure the distance between the two user equipments.
  • the two users Devices can utilize only these two antenna panels to transmit reference signals for distance measurement and estimation. count.
  • the method in the above first example can also be applied to determine the positional relationship and spacing of multiple user equipments in other directions.
  • the relative left-right position relationship and the left-right spacing of multiple user equipments may be determined, wherein the first antenna panel may be located on the left or right side of the first user equipment, and the third antenna panel and the fourth antenna panel may be located on the second The left and right sides of the user's device.
  • UE1 can be compared with UE2 through the determined relative positions of UE1 and UE2. Based on the first distance between AP3 and the measured second distance between AP4 of UE2, it can be determined whether there is an abnormality in the movement between UE1 and UE2.
  • the first distance should be greater than the second distance.
  • the driving status of UE2 is abnormal. For example, UE2 is likely to be traveling in the opposite direction to UE1.
  • UE1 can take remedial measures in a timely manner, including but not limited to changing its own driving lane, sending a warning to UE2 to change its driving direction, sending a warning to the vehicle behind UE1 to avoid UE2, etc.
  • 500B when it is determined that UE1 is located in front of UE2, based on the first distance being greater than the second distance, it may be determined that there is an abnormality in the movement between UE1 and UE2.
  • UE1 ensures that its own driving is normal, it can be determined that the driving status of UE2 is abnormal. For example, UE2 is likely to be traveling in opposite directions from UE1.
  • UE1 can take remedial measures in a timely manner, including but not limited to changing its own driving lane, sending warnings to UE2 to change its driving direction, sending warnings to other vehicles behind UE1 to avoid UE2, etc.
  • the first user equipment may utilize one antenna panel to receive reference signals sent by multiple antenna panels of the second user equipment based on the time resources and/or frequency resources occupied by the reference signals. Determining the location of a plurality of antenna panels of the second user equipment. Based on this, the first user equipment can implement a variety of positioning functions, including determining the relative position between it and the second user equipment, determining the distance between it and the second user equipment, and determining the movement between it and the second user equipment. Are there any abnormalities, etc.?
  • the second user equipment mainly used as a transmitting end may have multiple antenna panels, and the first user equipment mainly used as a receiving end may have and utilize multiple antenna panels, thereby achieving positioning-related a series of operations.
  • FIG. 6 shows a schematic diagram of a second example of positioning in side-link communication according to an embodiment of the present disclosure.
  • a first user equipment is shown as UEl, on which at least a first antenna panel (shown as AP1) and a second antenna panel (shown as AP2) are installed; a second user equipment is shown as The output is UE2, on which at least a third antenna panel (AP3) and a fourth antenna panel (AP4) are installed.
  • AP1 in the figure is located in the front of UE1, and AP2 is located in the rear of UE1; AP3 is located in the front of UE2, and AP4 is located in the rear of UE2.
  • the second example is based on the first example, so that the first user equipment can also utilize multiple antenna panels installed at multiple locations on the first user equipment to implement the positioning function in side link communication.
  • the time resource and/or frequency resource occupied by the reference signal sent by AP3 is associated with the position (for example, front) of AP3 on UE2, and the reference signal sent by AP4 is The occupied time resources and/or frequency resources are associated with the position (eg, rear) of AP4 on UE2. It should be appreciated that the association relationship between the position of AP3 on UE2 and one or more time resources and/or frequency resources and the association relationship between the position of AP4 on UE2 and one or more time resources and/or frequency resources can be It is determined by default, or may be notified to UE1 in advance by UE2.
  • one or more time resources and/or frequency resources associated with AP3 and one or more time resources and/or frequency resources associated with AP4 are independent of each other and do not overlap.
  • UE1 can receive the reference signal sent by AP3 (or AP4) of UE2 through AP1 (or AP2), and can determine based on the correlation between the antenna panel position and the time-frequency resource and the time-frequency resource occupied by the reference signal. The location of AP3 (or AP4) on UE2.
  • the relative position of the first user equipment (UE1) and the second user equipment (UE2) can be determined, for example, the relative position relationship is determined.
  • yet another method of determining the relative position between UE1 and UE2 may include UE1 receiving a first reference signal transmitted by one of the antenna panels of AP3 or AP4 of UE2 through AP1, and UE1 receiving a first reference signal transmitted by UE2 through AP2 AP3 or AP4 sends a second reference signal from the same antenna panel. Based on the reception strengths of the first reference signal and the second reference signal, the front-to-back position relationship between UE1 and UE2 can be determined.
  • UE1 may receive a first reference signal sent by AP4 of UE2 through AP1, and UE1 may receive a second reference signal sent by AP4 of UE2 through AP2 (or, the first reference signal and the The second reference signal may be sent by AP3 of UE2).
  • the strength of the first reference signal is greater than the strength of the second reference signal, since UE1 knows the installation positions of AP1 and AP2 on itself, it can be determined that UE1 is located behind UE2.
  • UE1 may receive a first reference signal sent by AP3 of UE2 through AP1, and UE1 may receive a second reference signal sent by AP3 of UE2 through AP2 (or, the first reference signal and the second reference signal).
  • the reference signal may be sent by AP4 of UE2).
  • UE1 may determine that it is located in front of UE2.
  • the strength of the reference signal referred to herein may include, but is not limited to, one of the following or a combination of multiple of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), reference signal signal quality Dry to noise ratio (SINR), etc.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • SINR reference signal signal quality Dry to noise ratio
  • UE1 can receive a reference signal sent by an antenna panel of AP3 or AP4 of UE2 through an antenna panel of AP1 or AP2 for measuring the relationship between UE1 and UE2.
  • distance between As an example, when UE1 and UE2 are both normally traveling vehicles, the distance (distance) d between them usually refers to the distance between the front of the following vehicle and the rear of the leading vehicle. Therefore, the reference signals transmitted by the two closest antenna panels on UE1 and UE2 can be selected to measure or estimate the distance.
  • the distance d between the two user equipments may be measured and estimated by UE1 receiving the reference signal sent from AP4 of UE2 through AP1. This is because UE1 knows that AP1 is located in front of it, and based on receiving the reference signal sent by AP4, it knows that it is located in the rear of UE2, and the two antenna panels are closest.
  • the distance d between two user equipments may be measured and estimated by UE1 receiving the reference signal sent from AP3 of UE2 through AP2. It should be noted that compared with the first example, this method of measuring the distance between user equipments in the second example may generally not require additional adjustments.
  • the location of the antenna panels in Figure 6 is an example only and is not intended to be limiting.
  • the method in the above second example can also be applied to determine the relative left and right position relationships and determine the left and right spacing of multiple user equipments, where the first antenna panel and the second antenna panel can be located on the left and right sides of the first user equipment.
  • the third antenna panel and the fourth antenna panel may be located on the left and right sides of the second user equipment.
  • the first user equipment utilizes a plurality of bits installed thereon.
  • the positioning function can be achieved by multiple antenna panels. If the first user equipment uses only one antenna panel among the plurality of antenna panels, multiple positioning operations may be implemented using the method set forth in the first example.
  • the functions of the first user equipment and the second user equipment may be interchanged.
  • the first user equipment may also be mainly used as a sending end user equipment
  • the second user equipment may also be mainly used as a receiving end equipment.
  • the time resources and/or frequency resources occupied by the reference signal sent by AP1 are associated with AP1's position (eg, front) on UE1
  • the time resources and/or frequency resources occupied by the reference signal sent by AP2 are associated with Associated with AP2's position on UE1 (e.g. rear).
  • This association relationship may be determined by default, or may be notified to UE2 in advance by UE1. Based on this, UE2 can utilize the method performed by UE1 in the above example to implement a series of operations related to positioning.
  • Both the first and second examples of positioning in wireless sidelink communications involve utilizing an antenna panel of a second user equipment and an antenna panel of a first user equipment to measure and estimate the distance between the two. Two possible methods for distance measurement and estimation will be introduced below.
  • reference signal received power may be used to perform distance measurement and estimation.
  • the distance between the antenna panel i of the transmitting end user equipment and the antenna panel j of the receiving end user equipment can be calculated by the power path loss of the reference signal transmitted from the antenna panel i to the antenna panel j.
  • PL i,j represents the path loss of the reference signal transmitted between antenna panel i and antenna panel j
  • D i,j represents the ratio between the antenna panel i of the transmitting end user equipment and the antenna panel j of the receiving end user equipment.
  • the distance between them, f represents the frequency (unit: MHz). Therefore, using the above relational expression, the distance between the two antenna panels of the two user equipments can be calculated by using the received power loss of the reference signal, and then the distance between the two user equipments can be obtained through appropriate adjustment.
  • methods such as Reference Signal Received Quality (RSRQ) can be used to measure and estimate the distance between user equipments.
  • RSSQ Reference Signal Received Quality
  • the reference signal round trip time may be used to measure and estimate the distance.
  • the first user equipment may send a first positioning reference signal to the second user equipment, and the second user equipment may send a second positioning reference signal to the first user equipment.
  • the time difference between when the first user equipment receives the second positioning reference signal and when it sends the first positioning reference signal Recorded as the first positioning information.
  • the time difference between the second user equipment receiving the first positioning reference signal and sending the second positioning reference signal Sent to the first user equipment as second positioning information.
  • the first user equipment uses the same antenna panel to send the first positioning reference signal and receives the second positioning reference signal.
  • the second user equipment uses the same antenna panel to send the second positioning reference signal. signal and receive the first positioning reference signal.
  • the above distance is the distance between the antenna panels on the two devices, and the distance can be appropriately adjusted according to the position of the antenna panels to obtain the distance between the two devices.
  • the same user equipment is used as both a receiving end device and a transmitting end device.
  • the schematic configuration and operation process of the first user equipment (mainly used as a receiving end user equipment) and the second user equipment (mainly used as a sending end user equipment) according to embodiments of the present disclosure have been described above with reference to the accompanying drawings.
  • a communication interaction diagram for positioning in side-link communication in a wireless communication system according to an embodiment of the present disclosure will be described below with reference to FIG. 7 .
  • the second user equipment notifies the first user equipment in advance of the location of one or more antenna panels and one or more time resources/frequency resources on the second user equipment (also referred to herein as referred to as time-frequency resources).
  • time-frequency resources also referred to herein as referred to as time-frequency resources.
  • This disclosure pays special attention to the scenario where the user equipment has multiple antenna panels. Therefore, the following interaction process is described by taking the first user equipment and the second user equipment each having antenna panels located at two different locations as an example.
  • the time-frequency resources associated with two different antenna panels on the user equipment may be independent of each other and non-overlapping. Alternatively, the above-mentioned association relationship may be determined by default, or may be predetermined by the network device and then notified to each user device.
  • the first user equipment can determine the position of the antenna panel that sends the reference signal on the second user equipment according to the time-frequency resource occupied by the received reference signal, thereby performing a series of operations related to positioning, to improve positioning performance. Additionally and optionally, the second user equipment may also send a message indicating that it has multiple antenna panels to the first user equipment in advance, so that the first user equipment can flexibly configure the reception of reference signals sent by multiple antenna panels. for positioning-related operations.
  • the first user equipment may receive a reference signal from the second user equipment for determining the relative position of the first user equipment and the second user equipment (for example, front and rear position relationship, left and right position relationship, up and down position relationship, etc.) (703).
  • the first user equipment may receive reference signals transmitted from two antenna panels of the second user equipment through one antenna panel installed thereon, and transmit the reference signals according to the strength of these reference signals.
  • the relative positions of the first user equipment and the second user equipment are determined based on the positions of corresponding antenna panels (eg, with reference to the first example in this disclosure and the operations described in FIG. 5 ).
  • the first user equipment can receive the reference signal transmitted from the same antenna panel of the second user equipment through two antenna panels installed thereon, and according to the position and reception of its own antenna panel
  • the relative position of the first user equipment and the second user equipment is determined based on the strength of the corresponding reference signal (for example, refer to the second example in the present disclosure and the operation described in FIG. 6).
  • the satellite navigation and positioning system GPS may also be used to roughly determine the location relationship between the first user equipment and the second user equipment.
  • the first user equipment receives a reference signal from the second user equipment for measuring and estimating the distance between the first user equipment and the second user equipment (705).
  • the distance between two user equipments in this article refers to the distance between the closest parts of the two user equipments.
  • the distance between them may be the distance between the front of the rear vehicle and the rear of the front vehicle, or the distance between the right side of the left vehicle and the right vehicle. The distance between the left and right sides.
  • the first user equipment may receive a reference signal transmitted from one of the two antenna panels of the second user equipment that is closest to the first user equipment through one antenna panel installed thereon (The closest antenna panel may be determined based on the determined relative positions of the two user equipments) for determining the distance between the first user equipment and the second user equipment. It should be understood that in this case, the estimated distance may need to be appropriately adjusted as needed to remove the impact of the position of the antenna panel on the first user equipment on the distance estimate (for example, refer to the The operation described in the first example and Figure 5). According to other embodiments of the present disclosure, the first user equipment may receive the closest signal from the two antenna panels of the second user equipment through one of the two antenna panels mounted thereon that is closest to the second user equipment.
  • a reference signal sent by an antenna panel close to the first user equipment (the closest antenna panel can be determined based on the determined relative positions of the two user equipments), for determining the distance between the first user equipment and the second user equipment (See, for example, the operations described with reference to the second example in this disclosure and Figure 6).
  • the measurement and estimation of the above distance can be performed using reference signal received power (RSRP), reference signal received quality (RSRQ) and other methods.
  • the measurement and estimation of distance may also be performed using the reference signal round trip time (RTT) method.
  • RTT reference signal round trip time
  • the first user equipment in addition to receiving the positioning reference signal from the second user equipment, the first user equipment also needs to send the positioning reference signal to the second user equipment.
  • the first user equipment receives a reference signal from the second user equipment for determining whether there is an abnormality in the position or movement between the first user equipment and the second user equipment (707).
  • This operation is mainly aimed at the scenario where the first user equipment and the second user equipment move on the same straight line.
  • the first user equipment measures the distance between the same antenna panel of itself and two antenna panels of the second user equipment (for example, including the first distance and the second distance). Based on the determined relative positions of the first user equipment and the second user equipment, the first user equipment compares the magnitudes of the first distance and the second distance. If the size relationship is inconsistent with the size relationship under normal movement, the first user equipment may determine that the movement between the first user equipment and the second user equipment is abnormal. For example, when ensuring that its own movement is normal, the first user equipment may determine that the movement of the second user equipment is abnormal.
  • the first user equipment may notify the second user equipment of the previously determined relative position with the second user equipment, the distance with the second user equipment, and the abnormal situation of movement with the second user equipment.
  • the first user equipment itself can change the movement track, and at the same time, it can warn the second user equipment so that it can return to normal as soon as possible.
  • FIG. 7 merely provides an example and is not intended to be limiting.
  • the figures may contain more or fewer steps and the steps may also be performed in a different order than depicted in the figures.
  • 708 may be divided into three steps for execution, that is, in the three steps, the first user equipment notifies the second user equipment of information about the relative position, distance estimation, and movement anomalies respectively.
  • the above divided three steps may be performed immediately after 703, 705 and 707 respectively.
  • the interaction in Figure 7 is also applicable in a scenario where the second user equipment mainly serves as the receiving end and the first user equipment mainly serves as the sending end.
  • operations similar to the operations at 701, 702, 704, and 706 may be performed by the second user device to the first user.
  • the device transmits, and operations similar to those at 703, 705, and 707 (eg, assumed to be denoted 703', 705', and 707') may be performed by the second user device.
  • the operations of 701'-707' can be performed after the operations of 701-707, or can be performed in a time-staggered manner with the operations of 701-707, and in this case step 708 can be omitted.
  • the present disclosure proposes a method of associating the position of the antenna panel on the user equipment with one or more time resources and/or frequency resources, so that the receiving end user equipment can The occupied time resources and/or frequency resources can determine the location of the antenna panel that sends the reference signal on the transmitting end user equipment. Further, based on this concept, the present disclosure proposes a method related to positioning in side-link communication.
  • the operation method includes determining the relative positions of multiple user equipments, determining the distance between multiple user equipments, determining whether there is an abnormality in the movement between multiple user equipments, etc.
  • the present disclosure can select reference signals transmitted by closer antenna panels on two user equipments for distance measurement and estimation, thereby improving the estimation accuracy of the distance between the two user equipments.
  • the present disclosure can conveniently determine whether abnormal device movement occurs based on the determined relative positions of the two user devices and comparison of the measured distances from the antenna panels at different locations on the sending device. This can effectively improve safety performance in scenarios such as in-vehicle user equipment communication, such as allowing vehicles to change driving tracks in time and issuing warnings to abnormal vehicles.
  • message overhead can be greatly saved by implicitly indicating the installation position (or attachment position) of the antenna panel that sends the reference signal on the user equipment through the time resources and/or frequency resources occupied by the reference signal.
  • the user equipment can learn whether other user equipments are user equipments with multiple antenna panels according to the received association relationships, so that the user equipment can flexibly utilize the received reference signals to perform positioning operations.
  • FIG. 8 illustrates a flowchart of an example method 800 for a first user equipment in a wireless communication system according to an embodiment of the present disclosure.
  • the method may be performed by a first user equipment (eg, a user equipment primarily functioning as a receiving end) in the sidelink communication (or more specifically, the electronic device 200).
  • the method 800 may include receiving, through a first antenna panel mounted on the first user equipment, a third antenna mounted thereon of a second user equipment (eg, a user equipment mainly used as a transmitter).
  • the first user equipment may be based on an association relationship between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the above-mentioned reference signal. or frequency resources to determine the location of the third antenna panel on the second user equipment.
  • Detailed example operations of this method may refer to the above description of the operation of the first user equipment (or more specifically, the electronic device 200), and will not be repeated here.
  • Figure 9 shows a flowchart of an example method 900 for a second user equipment in a wireless communication system according to an embodiment of the present disclosure.
  • the method may be performed by a second user equipment (eg, a user equipment primarily acting as a sender) in the sidelink communication (or more specifically, the electronic device 500).
  • the method 900 may include using a third antenna panel installed on a second device user to transmit a reference signal to the first user device (for example, a user device mainly used as a receiving end).
  • the reference signal occupies time resources and/or frequency resources with the third antenna panel on the second
  • the positions on the user equipment are associated, so that the first user equipment is based on the association relationship between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time occupied by the above-mentioned reference signal. resources and/or frequency resources to determine the location of the third antenna panel on the second user equipment, as shown in block S901.
  • Detailed example operations of this method may refer to the above operational description of the second user equipment (or more specifically, the electronic device 300), and will not be repeated here.
  • An electronic device for a first user equipment in a wireless communication system comprising processing circuitry configured to cause the first user equipment to perform the following operations:
  • the reference signal transmitted by the third antenna panel installed on the second user equipment is received through the first antenna panel installed on the first user equipment, wherein the time resources and/or frequency resources occupied by the reference signal are the same as those of the third antenna panel installed on the first user equipment.
  • the three antenna panels are associated with their location on the second user device;
  • the third antenna panel Based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal, it is determined that the third antenna panel is in location on the second user's device.
  • the second user equipment also includes a fourth antenna panel installed thereon, and the time resources and/or frequency resources occupied by the reference signal sent by the fourth antenna panel are associated with the position of the fourth antenna panel on the second user equipment. ;as well as
  • the position of the third antenna panel on the second user equipment is associated with one or more time resources and/or frequency resources, and the position of the fourth antenna panel on the second user equipment is related to one or more time resources and/or The association of frequency resources is determined by default, or is notified to the first user equipment in advance by the second user equipment, wherein one or more time resources and/or frequency resources associated with the third antenna panel are the same as those associated with the third antenna panel.
  • One or more time resources and/or frequency resources associated with the four-antenna panel are independent of each other.
  • Clause 3 The electronic device according to Clause 1 or 2, wherein the reference signal includes a positioning reference signal or a synchronization reference signal.
  • a third antenna panel is located at the front of the second user equipment, and a fourth antenna panel is located at the rear of the second user equipment.
  • Clause 5 The electronic device according to Clause 4, the processing circuit being further configured to cause the first user device to perform the following operations:
  • the relative positions of the first user equipment and the second user equipment are determined.
  • the first user equipment In response to the strength of the first reference signal being greater than the strength of the second reference signal, it is determined that the first user equipment is located in front of the second user equipment; or in response to the strength of the first reference signal being less than the strength of the second reference signal, it is determined that the first user equipment is located in front of the second user equipment.
  • the user equipment is located behind the second user equipment.
  • Clause 7 The electronic device according to Clause 5, the processing circuit being further configured to cause the first user device to perform the following operations:
  • a reference signal sent by one of the third antenna panel or the fourth antenna panel is received through the first antenna panel for measuring the relationship between the first user equipment and the second user equipment. The distance between two user devices.
  • the processing circuit is further configured to, in response to the first user equipment and the second user equipment moving on the same straight line:
  • the second distance of the antenna panel determines whether there is an abnormality in the movement between the first user equipment and the second user equipment.
  • the first user equipment also includes a second antenna panel mounted thereon, and
  • the first antenna panel is located at the front of the first user equipment and the second antenna panel is located at the rear of the first user equipment.
  • the processing circuit is further configured to cause the first user device to perform the following operations:
  • the relative positions of the first user equipment and the second user equipment are determined.
  • the first user equipment In response to the strength of the first reference signal being greater than the strength of the second reference signal, it is determined that the first user equipment is located at the rear of the second user equipment; or in response to the strength of the first reference signal being less than the strength of the second reference signal, it is determined that the first user equipment is located behind the second user equipment. The user equipment is located in front of the second user equipment.
  • the processing circuit is further configured to cause the first user device to perform the following operations:
  • the reference signal sent by the fourth antenna panel is received through the first antenna panel for measuring the distance between the first user equipment and the second user equipment.
  • Clause 15 The electronic device of clause 1, wherein the first user device is a vehicle and the second user device is a vehicle.
  • An electronic device for a second user equipment in a wireless communication system comprising Processing circuitry configured to cause the second user equipment to perform the following operations:
  • a reference signal is sent to the first user equipment using a third antenna panel installed on the second user equipment, and the time resource and/or frequency resource occupied by the reference signal is associated with the position of the third antenna panel on the second user equipment. , so that the first user equipment is based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal. to determine the position of the third antenna panel on the second user equipment.
  • the second user equipment also includes a fourth antenna panel installed thereon, and the time resources and/or frequency resources occupied by the reference signal sent by the fourth antenna panel are associated with the position of the fourth antenna panel on the second user equipment. ;as well as
  • the position of the third antenna panel on the second user equipment is associated with one or more time resources and/or frequency resources
  • the position of the fourth antenna panel on the second user equipment is related to one or more time resources and/or
  • the association relationship of frequency resources is determined by default, or is notified to the first user equipment in advance by the second user equipment, wherein one or more time resources and/or frequency resources associated with the third antenna panel are the same as those associated with the third antenna panel.
  • the four-antenna panel is associated with one or more time resources and/or frequency resources that are independent of each other.
  • a method for a first user equipment in a wireless communication system comprising:
  • the reference signal transmitted by the third antenna panel installed on the second user equipment is received through the first antenna panel installed on the first user equipment, wherein the time resources and/or frequency resources occupied by the reference signal are the same as those of the third antenna panel installed on the first user equipment.
  • the three antenna panels are associated with their location on the second user device;
  • the third antenna panel Based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal, it is determined that the third antenna panel is in location on the second user's device.
  • a method for a second user equipment in a wireless communication system comprising:
  • a reference signal is sent to the first user equipment using a third antenna panel installed on the second user equipment, and the time resource and/or frequency resource occupied by the reference signal is associated with the position of the third antenna panel on the second user equipment. , so that the first user equipment is based on the association between the position of the third antenna panel on the second user equipment and one or more time resources and/or frequency resources and the time resources and/or frequency resources occupied by the reference signal. to determine the position of the third antenna panel on the second user equipment.
  • a computer-readable storage medium storing one or more executable instructions, the one or more The executable instructions, when executed by one or more processors of an electronic device, cause the electronic device to perform the method according to clause 18 or 19.
  • Clause 21 A computer program product comprising executable instructions which, when executed by one or more processors of a computer, cause the computer to perform the method according to clause 18 or 19.
  • machine-executable instructions in the machine-readable storage medium or program product may be configured to perform operations corresponding to the above-described apparatus and method embodiments.
  • the embodiments of the machine-readable storage medium or program product will be clear to those skilled in the art, and therefore will not be described again.
  • Machine-readable storage media and program products for carrying or including the above-described machine-executable instructions are also within the scope of the present disclosure.
  • Such storage media may include, but are not limited to, floppy disks, optical disks, magneto-optical disks, memory cards, memory sticks, and the like.
  • FIG. 10 is a block diagram showing an example structure of a personal computer as an information processing apparatus employable in the embodiment of the present disclosure.
  • the personal computer may correspond to the above-described exemplary terminal device according to the present disclosure.
  • a central processing unit (CPU) 1101 performs various processes according to a program stored in a read-only memory (ROM) 1102 or a program loaded from a storage section 1108 into a random access memory (RAM) 1103 .
  • ROM read-only memory
  • RAM random access memory
  • data required when the CPU 1101 performs various processes and the like is also stored as necessary.
  • the CPU 1101, ROM 1102 and RAM 1103 are connected to each other via a bus 1104.
  • Input/output interface 1105 is also connected to bus 1104.
  • the following components are connected to the input/output interface 1105: the input part 1106, including a keyboard, a mouse, etc.; the output part 1107, including a display, such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.;
  • the storage part 1108 includes a hard disk, etc.; and the communication part 1109 includes a network interface card such as a LAN card, a modem, etc.
  • the communication section 1109 performs communication processing via a network such as the Internet.
  • Driver 1110 is also connected to input/output interface 1105 as needed.
  • Removable media 1111 such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc. are installed on the drive 1110 as necessary, so that computer programs read therefrom are installed into the storage section 1108 as needed.
  • the program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 1111.
  • this storage medium is not limited to the removable medium 1111 shown in FIG. 10 in which the program is stored and distributed separately from the device to provide the program to the user.
  • the removable media 1111 include magnetic disks (including floppy disks (registered trademark)), optical disks (including compact disk read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including minidiscs (MD) (registered trademark) )) and semiconductor memory.
  • the storage medium may be a ROM 1102, a hard disk contained in the storage section 1108, or the like, in which programs are stored and distributed to users together with the device containing them.
  • the technology of the present disclosure can be applied to various products.
  • the electronic devices 200 and 300 according to the embodiments of the present disclosure may be implemented as or included in various electronic devices/terminal devices, as shown in FIG. 8 and/or FIG. 9
  • the method can also be performed by various electronic devices/terminal devices.
  • the terminal device mentioned in this disclosure is also called a user device in some examples, and may be implemented as a mobile terminal (such as a smartphone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/dongle mobile routers and digital cameras) or vehicle-mounted terminals (such as car navigation equipment).
  • the user equipment may also be implemented as a terminal performing machine-to-machine (M2M) communication (also known as a machine type communication (MTC) terminal).
  • M2M machine-to-machine
  • MTC machine type communication
  • the user equipment may be a wireless communication module (such as an integrated circuit module including a single die) installed on each of the above-mentioned terminals. In some cases, user equipment may communicate using multiple wireless communication technologies.
  • the user equipment may be configured to communicate using two or more of GSM, UMTS, CDMA2000, WiMAX, LTE, LTE-A, WLAN, NR, Bluetooth, etc.
  • user equipment may also be configured to communicate using only one wireless communication technology.
  • the smart phone 1200 includes a processor 1201, a memory 1202, a storage device 1203, an external connection interface 1204, a camera 1206, a sensor 1207, a microphone 1208, an input device 1209, a display device 1210, a speaker 1211, a wireless communication interface 1212, one or more Antenna switch 1215, one or more antennas 1216, bus 1217, battery 1218, and auxiliary controller 1219.
  • the smart phone 1200 (or processor 1201) here may correspond to the first user equipment (or more specifically, the electronic device 200) or the second user equipment (or more specifically, the electronic device 200) in the above wireless communication system. Specifically, electronic device 300).
  • the processor 1201 may be, for example, a CPU or a system on a chip (SoC), and controls functions of the application layer and other layers of the smartphone 1200 .
  • the memory 1202 includes RAM and ROM, and stores data and programs executed by the processor 1201 .
  • the storage device 1203 may include storage media such as semiconductor memory and hard disk.
  • the external connection interface 1204 is an interface for connecting external devices, such as memory cards and Universal Serial Bus (USB) devices, to the smartphone 1200 .
  • the camera 1206 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS) and generates a captured image.
  • Sensors 1207 may include a group of sensors such as measurement sensors, gyroscope sensors, geomagnetic sensors, and acceleration sensors.
  • the microphone 1208 converts the sound input to the smartphone 1200 into an audio signal.
  • the input device 1209 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 1210, and receives an operation or information input from a user.
  • the display device 1210 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 1200 .
  • the speaker 1211 converts the audio signal output from the smartphone 1200 into sound.
  • the wireless communication interface 1212 supports any cellular communication scheme such as LTE and LTE-Advanced, and performs wireless communication.
  • the wireless communication interface 1212 may generally include a BB processor 1213 and an RF circuit 1214, for example.
  • the BB processor 1213 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication.
  • the RF circuit 1214 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via the antenna 1216.
  • the wireless communication interface 1212 may be a chip module on which the BB processor 1213 and the RF circuit 1214 are integrated.
  • wireless communication interface 1212 may include multiple A BB processor 1213 and a plurality of RF circuits 1214.
  • FIG. 11 shows an example in which the wireless communication interface 1212 includes multiple BB processors 1213 and multiple RF circuits 1214, the wireless communication interface 1212 may also include a single BB processor 1213 or a single RF circuit 1214.
  • the wireless communication interface 1212 may support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 1212 may include a BB processor 1213 and an RF circuit 1214 for each wireless communication scheme.
  • Each of the antenna switches 1215 switches the connection destination of the antenna 1216 between a plurality of circuits included in the wireless communication interface 1212 (for example, circuits for different wireless communication schemes).
  • Antennas 1216 each include a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and are used by wireless communication interface 1212 to transmit and receive wireless signals.
  • smartphone 1200 may include multiple antennas 1216.
  • FIG. 11 shows an example in which smartphone 1200 includes multiple antennas 1216
  • smartphone 1200 may also include a single antenna 1216 .
  • smartphone 1200 may include an antenna 1216 for each wireless communication scheme.
  • the antenna switch 1215 may be omitted from the configuration of the smartphone 1200.
  • the bus 1217 connects the processor 1201, the memory 1202, the storage device 1203, the external connection interface 1204, the camera 1206, the sensor 1207, the microphone 1208, the input device 1209, the display device 1210, the speaker 1211, the wireless communication interface 1212, and the auxiliary controller 1219 to each other. connect.
  • the battery 1218 provides power to the various blocks of the smartphone 1200 shown in FIG. 11 via feeders, which are partially shown as dashed lines in the figure.
  • the auxiliary controller 1219 operates the minimum necessary functions of the smartphone 1200 in the sleep mode, for example.
  • the car navigation device 1320 includes a processor 1321, a memory 1322, a global positioning system (GPS) module 1324, a sensor 1325, a data interface 1326, a content player 1327, a storage media interface 1328, an input device 1329, a display device 1330, a speaker 1331, a wireless Communication interface 1333, one or more antenna switches 1336, one or more antennas 1337, and battery 1338.
  • the car navigation device 1320 (or processor 1321) here may correspond to the first user device (or more specifically, the electronic device 200) or the second user device (or More specifically, electronic device 300).
  • the processor 1321 may be, for example, a CPU or an SoC, and controls the navigation function and other functions of the car navigation device 1320 .
  • the memory 1322 includes RAM and ROM, and stores data and programs executed by the processor 1321 .
  • the GPS module 1324 measures the location (such as latitude, longitude, and altitude) of the car navigation device 1320 using GPS signals received from GPS satellites.
  • Sensors 1325 may include a group of sensors such as gyroscope sensors, geomagnetic sensors, and air pressure sensors.
  • the data interface 1326 is connected to, for example, the in-vehicle network 1341 via a terminal not shown, and acquires data generated by the vehicle (such as vehicle speed data).
  • the content player 1327 reproduces content stored in storage media, such as CDs and DVDs, which are inserted into the storage media interface 1328 .
  • the input device 1329 includes, for example, a touch sensor, a button, or a switch configured to detect a touch on the screen of the display device 1330, and receives an operation or information input from a user.
  • the display device 1330 includes a screen such as an LCD or an OLED display, and displays an image of a navigation function or reproduced content.
  • the speaker 1331 outputs the sound of the navigation function or the reproduced content.
  • the wireless communication interface 1333 supports any cellular communication scheme such as LTE and LTE-Advanced, and performs wireless communication.
  • Wireless communication interface 1333 may generally include, for example, BB processor 1334 and RF circuitry 1335.
  • the BB processor 1334 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communications.
  • the RF circuit 1335 may include, for example, a mixer, filter, and amplifier, and transmit and receive wireless signals via the antenna 1337.
  • the wireless communication interface 1333 may also be a chip module on which the BB processor 1334 and the RF circuit 1335 are integrated. As shown in FIG.
  • the wireless communication interface 1333 may include a plurality of BB processors 1334 and a plurality of RF circuits 1335.
  • FIG. 12 shows an example in which the wireless communication interface 1333 includes multiple BB processors 1334 and multiple RF circuits 1335, the wireless communication interface 1333 may also include a single BB processor 1334 or a single RF circuit 1335.
  • the wireless communication interface 1333 may support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless LAN schemes.
  • the wireless communication interface 1333 may include a BB processor 1334 and an RF circuit 1335 for each wireless communication scheme.
  • Each of the antenna switches 1336 switches the connection destination of the antenna 1337 between a plurality of circuits included in the wireless communication interface 1333, such as circuits for different wireless communication schemes.
  • Antennas 1337 each include a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and are used by wireless communication interface 1333 to transmit and receive wireless signals.
  • the automobile guide Aviation equipment 1320 may include multiple antennas 1337.
  • FIG. 12 shows an example in which the car navigation device 1320 includes multiple antennas 1337, the car navigation device 1320 may also include a single antenna 1337.
  • the car navigation device 1320 may include an antenna 1337 for each wireless communication scheme.
  • the antenna switch 1336 may be omitted from the configuration of the car navigation device 1320.
  • the battery 1338 provides power to the various blocks of the car navigation device 1320 shown in FIG. 12 via feeders, which are partially shown as dashed lines in the figure. Battery 1338 accumulates power provided from the vehicle.
  • the technology of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 1340 including a car navigation device 1320 , an in-vehicle network 1341 , and one or more blocks of a vehicle module 1342 .
  • vehicle module 1342 generates vehicle data such as vehicle speed, engine speed, and fault information, and outputs the generated data to the in-vehicle network 1341 .
  • a plurality of functions included in one unit in the above embodiments may be implemented by separate devices.
  • multiple functions implemented by multiple units in the above embodiments may be implemented by separate devices respectively.
  • one of the above functions may be implemented by multiple units. Needless to say, such a configuration is included in the technical scope of the present disclosure.
  • steps described in the flowchart include not only processing performed in time series in the stated order but also processing performed in parallel or individually and not necessarily in time series. Furthermore, even in steps processed in time series, it goes without saying that the order can be appropriately changed.

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Abstract

本公开涉及用于无线通信系统中的电子设备和方法。本公开提出了用于无线通信系统中的第一用户设备的方法。该方法包括:通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联；以及基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和前述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。

Description

用于无线通信系统中的电子设备和方法
优先权声明
本申请要求于2022年7月1日递交、申请号为202210775178.8、发明名称为“用于无线通信系统中的电子设备和方法”的中国专利申请的优先权，其全部内容通过引用并入本文。
技术领域
本公开一般地涉及用于无线通信系统中的电子设备和方法，并且具体地涉及用于无线侧链路通信的技术。
背景技术
无线通信系统可以使用多种协议和标准进行设备之间的数据传输。这些协议和标准经历了长期的发展，包括但不限于第三代合作伙伴计划(3GPP)、3GPP长期演进(LTE)(例如，4G通信)、3GPP新无线电(NR)(例如，5G通信)、以及用于无线局域网(WLAN)的IEEE 802.11标准(通常也称为Wi-Fi)等。
作为示例，在LTE或NR系统中，用户设备(本文也称为终端设备)之间的通信接口包括PC5接口。PC5接口可以用于车辆到一切(V2X)通信(其可以包括车辆到车辆(V2V)通信、车辆到基础设施(V2I)通信、车辆到网络(V2N)通信、车辆到行人(V2P)通信等)、设备到设备(D2D)通信等可以在用户设备之间直接进行通信的场景。在该通信接口上，用户设备可以通过侧链路(Sidelink,SL)进行无线数据传输。具体而言，终端设备可以利用安装在其上的天线面板发送和接收参考信号。在一些场景中，参考信号可以用于实现定位等功能。因此，希望找到能够有效利用天线面板来发送和接收参考信号从而提高定位的性能的系统和方法。
发明内容
本公开提出了用于无线通信系统中的侧链路通信的电子设备和方法。本公开提出了利用参考信号所占用的时间资源和/或频率资源来指示发送该参考信号的天线面板在用户设备上的位置，使得侧链路通信中的定位性能得到提高。
根据本公开的第一方面，提供了一种用于无线通信系统中的第一用户设备的电子设备。该电子设备包括处理电路，该处理电路被配置为使得第一用户设备执行以下操作：通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联；以及基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
对应地，根据本公开的第一方面，还提供了一种用于无线通信系统中的第一用户设备的方法。该方法包括通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联。并且，该方法还包括基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
根据本公开的第二方面，提供了一种用于无线通信系统中的第二用户设备的电子设备，所述电子设备包括处理电路，所述处理电路被配置为使得第一用户设备执行以下操作：使用安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联，以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
对应地，根据本公开的第二方面，还提供了一种用于无线通信系统中的第二用户设备的方法。该方法包括：使用安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联，以使得第一用户设备基于第三天线面板在第二用户设备上 的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
根据本公开的第三方面，提供了一种存储有一个或多个可执行指令的计算机可读存储介质，所述一个或多个可执行指令在由电子设备的一个或多个处理器执行时使得该电子设备执行根据本公开的各种实施例的方法。
根据本公开的第四方面，提供了一种包括可执行指令的计算机程序产品，所述可执行指令在由计算机的一个或多个处理器执行时，使得所述计算机执行根据本公开的各种实施例的方法。
提供上述概述是为了总结一些示例性的实施例，以提供对本文所描述的主题的各方面的基本理解。因此，上述特征仅仅是示例并且不应该被解释为以任何方式缩小本文所描述的主题的范围或精神。本文所描述的主题的其他特征、方面和优点将从以下结合附图描述的具体实施方式而变得明晰。
附图说明
当结合附图考虑实施例的以下具体描述时，可以获得对本公开内容更好的理解。在各附图中使用了相同或相似的附图标记来表示相同或者相似的部件。各附图连同下面的具体描述一起包含在本说明书中并形成说明书的一部分，用来例示说明本公开的实施例和解释本公开的原理和优点。其中：
图1示出了根据本公开实施例的无线通信系统中的侧链路通信的示例场景图。
图2示出了根据本公开实施例的用于侧链路通信的第一用户设备的示例性电子设备。
图3示出了根据本公开实施例的用于侧链路通信的第二用户设备的示例性电子设备。
图4示出了根据本公开实施例的参考信号时频资源与天线面板位置的关联关系的示例图。
图5示出了根据本公开实施例的侧链路通信中的定位的第一示例的示意图。
图6示出了根据本公开实施例的侧链路通信中的定位的第二示例的示意图。
图7示出了根据本公开实施例的用于侧链路通信的用户设备之间的交互图。
图8示出了根据本公开实施例的用于侧链路通信的第一用户设备的示例方法的流程图。
图9示出了根据本公开实施例的用于侧链路通信的第二用户设备的示例方法的流程图。
图10为作为本公开的实施例中可采用的信息处理设备的个人计算机的示例结构的框图；
图11为示出可以应用本公开的技术的智能电话的示意性配置的示例的框图。
图12为示出可以应用本公开的技术的汽车导航设备的示意性配置的示例的框图。
虽然在本公开内容中所描述的实施例可能易于有各种修改和另选形式，但是其具体实施例在附图中作为例子示出并且在本文中被详细描述。但是，应该理解的是，附图以及对其的详细描述不旨在将实施例限定到所公开的特定形式，而是相反，目的是要涵盖属于权利要求的精神和范围内的所有修改、等同和另选方案。
具体实施方式
以下描述根据本公开的设备和方法等各方面的代表性应用。这些例子的描述仅是为了增加上下文并帮助理解所描述的实施例。因此，对本领域技术人员而言清楚的是，以下所描述的实施例可以在没有具体细节当中的一些或全部的情况下被实施。在其他情况下，众所周知的过程步骤没有详细描述，以避免不必要地模糊所描述的实施例。其他应用也是可能的，本公开的方案并不限制于这些示例。
在本公开中，为了便于描述实施例所涉及的技术方案，采用了“第一”、“第二”等词语对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员应该理解的是，“第一”、“第二”等词语并不对数量和执行次序或优先级顺序等进行限定，并且“第一”、“第二”也不限定一定是不同的。
典型地，无线通信系统可以包括网络设备和用户设备，网络设备可以为一个或多个用户设备提供通信服务。
在本公开中，术语“网络设备”(或“基站”、“控制设备”)具有其通常含义的全部广 度，并且至少包括作为无线通信系统或无线电系统的一部分以便于通信的无线通信站。作为例子，网络设备例如可以是4G通信标准的eNB、5G通信标准的gNB、远程无线电头端、无线接入点、无人机控制塔台或者执行类似功能的通信装置。在本公开中，“网络设备”、“基站”和“控制设备”可以互换地使用，或者“网络设备”可以实现为“基站”的一部分。下文将以网络设备为例结合附图详细描述应用示例。
在本公开中，术语“用户设备(UE)”或“终端设备”具有其通常含义的全部广度，并且至少包括作为无线通信系统或无线电系统的一部分以便于通信的终端设备。作为例子，用户设备例如可以是移动电话、膝上型电脑、平板电脑、车载设备(例如，汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实设备、车间设备、无人驾驶中的无线设备、可穿戴设备、传感器等之类的终端设备或其元件。在本公开中，“用户设备”(以下可被简称为“UE”)和“终端设备”可以互换地使用，或者“用户设备”可以实现为“终端设备”的一部分。
在本公开中，术语“发送端”其通常含义的全部广度，通常指示通信系统中发送数据的一侧，其可以是网络设备/基站侧，也可以是用户设备/终端设备侧。类似地，术语“接收端”具有其通常含义的全部广度，并且相应地可以指示通信系统中接收数据的一侧，其可以是用户设备/终端侧，也可以是网络设备/基站侧。在下文中，以发送端和接收端均为用户设备为例进行说明，但是不应将此理解为对本公开的限制。此外，在本公开中，同一个设备可以既充当发送端又充当接收端。
图1示出了根据本公开实施例的无线通信系统中的侧链路通信的示例场景图。应该理解的是，图1仅示出无线侧链路通信系统的多种类型和可能布置中的一种；本公开的特征可根据需要在各种系统中的任一者中实现。
如图1所示，无线通信系统100中的侧链路通信涉及多个用户设备之间的通信。为了便于理解和简化说明，图1中示出了两个用户设备：第一用户设备(在图1中示出为“UE1”)和第二用户设备(在图1中示出为“UE2”)。第一用户设备与第二用户设备之间可以不经由网络设备而直接进行通信(即，发送端和接收端都是用户设备)，并且二者之间的通信链路称为侧链路。应该理解的是，第一用户设备和第二用户设备可以是相同类型的设备，也可以是不同类型的设备。
在侧链路通信中，用户设备可以通过天线面板发送和接收参考信号，从而实现定位 等功能。例如，在图1中，每个用户设备(例如，第一用户设备或第二用户设备)可以安装有一个或多个天线面板，并且该一个或多个天线面板可以安装在用户设备上的一个或多个位置处。作为示例，图1中示出了UE1和UE2分别具有两个天线面板的场景。具体而言，第一用户设备具有第一天线面板(在图1中示出为“AP1”)和第二天线面板(在图1中示出为“AP2”)，而第二用户设备具有第三天线面板(在图1中示出为“AP3”)和第四天线面板(在图1中示出为“AP4”)。例如，UE1通过AP1可以接收从UE2的AP3和AP4发送的参考信号。例如，在一些实施例中，参考信号可以是同步参考信号或定位参考信号，其可以用于实现定位等功能，例如确定UE1和UE2之间的相对位置关系等。
应该理解的是，图1中的场景仅仅为示例，通信系统中可以存在更多数量的用户设备。还应该理解的是，每个用户设备可以具有更多或更少数量的天线面板。尽管图1中示出的天线面板分别位于用户设备的前部和后部，但是在实践中，天线面板可以安装在用户设备的任何位置，包括但不限于位于用户设备的前部(或头部)、后部(或尾部)、中部、顶部、底部、左侧、右侧等。
根据图1，在第一用户设备和第二用户设备无法得知来自对方的参考信号是源于哪个位置的天线面板时，定位性能可能受到较大影响。例如，UE1作为接收端，可以通过AP1从UE2的AP3接收参考信号，也可以通过AP1从UE2的AP4接收参考信号。如果UE2本身的尺寸较大，那么UE2上的AP3和AP4的位置很可能相距较远，从而通过二者测量和估计得到的两个用户设备之间的距离相差较大。作为示例而非限制，在UE1和UE2均为车辆的情况下，利用UE1的AP1和UE2的AP4进行参考信号的发送/接收可以更加准确地测量或估计两个用户设备之间的正常行驶距离d，否则将很可能产生车身长度的距离误差。这种距离误差在两个用户设备之间的距离较小时尤为严重，降低了定位的精确度。
为了提升侧链路通信中的定位性能，在本公开的实施例中，将参考信号的时间资源/频率资源与发送该参考信号的天线面板在发送端用户设备上的安装位置进行了关联(例如，映射)。由此，接收该参考信号的接收端用户设备可以基于预定的关联关系和该参考信号所占用的时间资源/频率资源来确定发送该参考信号的天线面板所处的位置，从而执行相应的操作或计算来确保更精确的定位性能。
图2示出了根据本公开实施例的用于无线通信系统中的第一用户设备的示例性电子 设备。图2所示的电子设备200可以包括各种单元以实现根据本公开的各实施例。在该示例中，电子设备200包括通信单元202和控制单元204。在一种实施方式中，电子设备200被实现为第一用户设备本身或其一部分，或者被实现为与第一用户设备相关的设备或者该设备的一部分。以下结合第一用户设备描述的各种操作可以由电子设备200的单元202和204或者其他可能的单元实现。
在实施例中，第一用户设备可以在其上安装有(或附接有)一个或多个天线面板。第一用户设备的电子设备200的通信单元202可以通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联。电子设备的控制单元204可以基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和上述接收的参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
图3示出了根据本公开实施例的用于无线通信系统中的第二用户设备的示例性电子设备300。图3所示的电子设备300可以包括各种单元以实现根据本公开的各实施例。在该示例中，电子设备300包括通信单元302和控制单元304。在一种实施方式中，电子设备300被实现为第二用户设备本身或其一部分，或者被实现与第二用户设备相关的设备或者该设备的一部分。以下结合第二用户设备描述的各种操作可以由电子设备300的单元302和304或者其他可能的单元实现。
在实施例中，第二用户设备可以在其上安装有(或附接有)一个或多个天线面板。第二用户设备的电子设备300的通信单元302可以通过安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联。上述操作可以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和上述发送的参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
应该理解的是，电子设备300的控制单元304可以指示通信单元302预先将第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系通知给第一用户设备。替代地，上述关联关系可以是缺省确定的，或者可以由网络设备预先确 定后通知给无线通信系统中的各个用户设备。
在一些实施例中，电子设备200和300可以以芯片级来实现，或者也可以通过包括其他外部部件(例如无线电链路、天线等)而以设备级来实现。例如，各电子设备可以作为整机而工作为通信设备。
应该注意的是，上述各个单元仅是根据其所实现的具体功能划分的逻辑模块，而不是用于限制具体的实现方式，例如可以以软件、硬件或者软硬件结合的方式来实现。在实际实现时，上述各个单元可被实现为独立的物理实体，或者也可由单个实体(例如，处理器(CPU或DSP等)、集成电路等)来实现。其中，处理电路可以指在计算系统中执行功能的数字电路系统、模拟电路系统或混合信号(模拟和数字的组合)电路系统的各种实现。处理电路可以包括例如诸如集成电路(IC)、专用集成电路(ASIC)这样的电路、单独处理器核心的部分或电路、整个处理器核心、单独的处理器、诸如现场可编程门阵列(FPGA)的可编程硬件设备、和/或包括多个处理器的系统。
时频资源与天线面板位置的关联关系
根据本公开的实施例，在参考信号的时间资源和/或频率资源与发送该参考信号的天线面板在发送端用户设备上的安装位置之间建立了关联关系(有时也可以称为映射关系)。换言之，参考信号所占用的时间资源和/或频率资源能够指示发送该参考信号的天线面板所处的具体位置(或相对位置)。基于该关联关系，接收参考信号的接收端用户设备可以根据参考信号所占用的时间资源和/或频率资源来快速且准确地确定发送参考信号的天线面板在发送端用户设备上的位置。
图4示出了根据本公开实施例的参考信号时频资源与天线面板位置的关联关系的示例图。在该示例中，假设用户设备具有分别安装在前部和后部的两个天线面板，在图中分别称为前置天线面板和后置天线面板。应该理解的是，本公开中的“前部”和“后部”等词语仅表示相对位置。例如，可以定义用户设备的通常移动方向为“前”，或者将通常意义下被认为是用户设备的头部位置定义为“前部”。作为示例，在用户设备为车辆的场景中，前置天线面板可以安装在车辆的前保险杠上，并且后置天线面板可以安装在车辆的后保险杠上。
如图4所示，无线通信系统中的一个子帧可以包括14个OFDM符号。图4中的横 轴方向可以表示时间资源，纵轴方向可以表示频率资源，并且一个小方块表示一个资源元素(Resource Element,RE)。资源元素可以看作是最小的时间资源和/或频率资源(在本文中有时简称为时频资源)单位，其在时域对应于一个OFDM符号，并且在频域对应于一个子载波。在图4的示例中，前置天线面板发送的参考信号与标记有竖线阴影的资源元素所代表的时频资源相关联，并且后置天线面板发送的参考信号与标记有斜线阴影的资源元素所代表的时频资源相关联。
如前所述，上述关联关系(或映射关系)可以由发送端用户设备以映射表等形式预先通知给接收端用户设备。替代地，这种关联关系也可以是系统缺省决定的，或者可以由网络设备预先确定后通知给各个用户设备。关于关联关系的通知消息可以经由物理层消息指示，也可以经由更高层消息(诸如，MAC层消息)指示。
应该理解的是，图4中仅仅示出天线面板的位置与一个或多个参考信号时频资源的关联关系(或映射关系)的一个示例。在实践中，发送端用户设备可以具有更多或更少数量的位于一个或多个位置的天线面板，每个天线面板的位置可以仅与时间资源相关联、仅与频率资源相关联、或者与时间资源和频率资源两者相关联。
对应地，发送端用户设备在发送参考信号时，需要按照上述关联关系利用与该用户设备上的天线面板的位置对应的时频资源进行发送。可选地，发送端用户设备可以利用不同的资源集合(Resource Set)来确定通过不同位置的天线面板发送的参考信号。可选地，发送端用户设备可以利用不同的频率分层(Frequency Layer)来确定通过不同位置的天线面板发送的参考信号。发送端用户设备向接收端用户设备发送参考信号后，可以使得接收端用户设备基于天线面板位置与时频资源的关联关系和该参考信号所占用的时频资源来确定发送该参考信号的天线面板在发送端用户设备上的位置。
侧链路通信中的定位
如参考图1所述的，在无线侧链路通信中，适当地选择发送端用户设备的天线面板和接收端用户设备的天线面板来发送和接收参考信号，可以提升定位性能。通常来说，侧链路通信中的定位所涉及的操作包括但不限于确定多个用户设备的相对位置关系、测量和估计多个用户设备之间的距离、以及推断多个用户设备的当前位置或移动是否存在异常等。相应地，下文中将针对这些操作来分别描述侧链路通信中的定位的两个示例。
为了便于描述和理解，在下文中，将以第一用户设备和第二用户设备均为车辆的侧链路通信场景为例对本公开的技术方案进行说明。但是，本公开并不限于该特定类型的用户设备之间通信，而是可以适用于多种类型的多个用户设备之间的侧链路通信中的定位的场景。
侧链路通信中的定位的第一示例
在侧链路定位的第一示例中，主要用作发送端的第二用户设备可以具有多个天线面板，主要用作接收端的第一用户设备可以具有一个天线面板或仅利用多个天线面板中的一个天线面板，从而实现与定位相关的一系列操作。图5示出了根据本公开实施例的侧链路通信中的定位的第一示例的示意图。
在图5中，第一用户设备被示出为UE1，其上至少安装有第一天线面板(被示出为AP1)；第二用户设备被示出为UE2，其上至少安装有第三天线面板(AP3)和第四天线面板(AP4)。仅仅作为示例而非限制，图中的AP1位于UE1的前部，AP3位于UE2的前部，并且AP4位于UE2的后部。
根据本公开的实施例，AP3发送的参考信号所占用的时间资源和/或频率资源与AP3在UE2上的位置(例如，前部)相关联，并且AP4发送的参考信号所占用的时间资源和/或频率资源与AP4在UE2上的位置(例如，后部)相关联。应该认识到的是，AP3在UE2上的位置与一个或多个时间资源和/或频率资源的关联关系以及AP4在UE2上的位置与一个或多个时间资源和/或频率资源的关联关系可以是缺省确定的，也可以是由UE2预先通知给UE1的。通常来说，与AP3相关联的一个或多个时间资源和/或频率资源和与AP4相关联的一个或多个时间资源和/或频率资源是互相独立并且是没有重叠的。相应地，UE1可以通过AP1接收由UE2的AP3(或AP4)发送的参考信号，并且可以基于天线面板位置与时频资源的关联关系和该参考信号所占用的时频资源来确定AP3(或AP4)在UE2上的位置。
根据本公开实施例的第一示例，可以确定第一用户设备(UE1)与第二用户设备(UE2)的相对位置，例如确定相对位置关系。
如图5所示，确定UE1与UE2之间的相对位置的一种方法可以包括：UE1通过AP1接收由UE2的AP3发送的第一参考信号，并且UE1通过AP1接收由UE2的AP4发送的 第二参考信号。基于第一参考信号与第二参考信号的接收强度，可以确定UE1与UE2的前后位置关系。具体而言，如500A所示，在第一参考信号的强度小于第二参考信号的强度的情况下，由于UE1可以根据接收到的参考信号的时间资源和/或频率资源来确定发送该参考信号的天线面板在UE2上的位置，因此可以确定UE1位于UE2的后部。类似地，如500B所示，在第一参考信号的强度大于第二参考信号的强度的情况下，UE1可以确定自己位于UE2的前部。
应该理解的是，本文所指的参考信号的强度可以包括但不限于以下中的一个或以下中的多个的组合：参考信号接收功率(RSRP)、参考信号接收质量(RSRQ)、参考信号信干噪比(SINR)等。
替代地，确定UE1与UE2之间的相对位置的另一种方法可以包括利用卫星导航定位系统GPS来粗略地进行用户设备的前后位置关系等判定。
进一步地，基于所确定的UE1与UE2的相对位置，UE1可以通过AP1接收由UE2的AP3或AP4中的一个天线面板发送的参考信号，以用于测量UE1与UE2之间的距离。作为示例，在UE1与UE2均为正常行驶的车辆的情况下，二者之间的距离(车距)d通常指的是后车的前部与前车的后部之间的距离。具体而言，如500A所示，在确定UE1位于UE2的后部的情况下，两个用户设备之间的距离d可以由UE1通过AP1接收从UE2的AP4发送的参考信号来进行测量和估计(因为AP4更接近UE1)。类似地，如500B所示，在确定UE1位于UE2的前部的情况下，两个用户设备之间的距离d可以由UE1通过AP1接收从UE2的AP3发送的参考信号来进行测量和估计(因为AP3更接近UE1)。应该注意的是，在后一种情况下，由于UE1已知AP1位于自身的前部，因此在计算距离d时可以进行适当的调整，例如减去自身的设备长度(例如，车辆长度)。
应该理解的是，图5中的天线面板的位置仅仅为示例，并不旨在限制。例如，在实践中，第一天线面板也可以位于第一用户设备的中间位置，进而在测量和估计第一用户设备与第二用户设备之间的距离d时可以减去自身设备长度的一半。在一些特殊场景中，第一用户设备和第二用户设备甚至可以各自仅利用一个天线面板来测量两个用户设备之间的距离。例如，如果第一用户设备根据接收到的参考信号的时频资源已经确定第二用户设备的天线面板位于其中间位置，并且第一用户设备的天线面板也恰好位于其中间位置，那么两个用户设备可以仅利用这两个天线面板来传输参考信号以进行距离测量和估 计。
还应该理解的是，上述第一示例中的方法也可以适用于确定多个用户设备的其他方向上的位置关系和间距。例如，可以确定多个用户设备的相对左右位置关系和确定左右间距，其中第一天线面板可以位于第一用户设备的左侧或右侧，并且第三天线面板和第四天线面板可以位于第二用户设备的左侧和右侧。
更进一步地，在第一用户设备(UE1)与第二用户设备(UE2)在同一条直线上移动的场景中，基于所确定的UE1与UE2的相对位置，UE1可以通过AP1所测量的与UE2的AP3之间的第一距离和所测量的与UE2的AP4之间的第二距离，可以确定UE1与UE2之间的移动是否存在异常情况。
具体而言，如500A所示，在确定UE1位于UE2的后部的情况下，基于第一距离小于第二距离，可以确定UE1与UE2之间的移动存在异常情况。例如，在UE1和UE2均为车辆的示例中，根据同一车道上的两个车辆应该同向行驶的交通规则，第一距离应当大于第二距离。当出现相反的大小关系时，在UE1确保自身行驶正常的情况下，可以判定UE2的行驶状态异常。例如，UE2很可能与UE1正在对向行驶。在此场景下，UE1可以及时采取补救措施，包括但不限于更换自身行驶车道、向UE2发送警告以使其改变行驶方向、向UE1的后车发送警告以躲避UE2，等等。类似地，如500B所示，在确定UE1位于UE2的前部的情况下，基于第一距离大于第二距离，可以确定UE1与UE2之间的移动存在异常情况。在UE1确保自身行驶正常的情况下，可以判定UE2的行驶状态异常。例如，UE2很可能与UE1正在背向行驶。在此场景下，UE1可以及时采取补救措施，包括但不限于更换自身行驶车道、向UE2发送警告以使其改变行驶方向、向UE1的其他后车发送警告以躲避UE2，等等。
总结来说，在第一示例中，第一用户设备可以利用一个天线面板来接收由第二用户设备的多个天线面板发送的参考信号，基于参考信号所占用的时间资源和/或频率资源来确定第二用户设备的多个天线面板的位置。基于此，第一用户设备可以实现多种定位功能，包括确定其与第二用户设备的相对位置、确定其与第二用户设备之间的距离、以及确定其与第二用户设备之间的移动是否存在异常等。
侧链路通信中的定位的第二示例
在侧链路定位的第二示例中，主要用作发送端的第二用户设备可以具有多个天线面板，主要用作接收端的第一用户设备可以具有并利用多个天线面板，从而实现与定位相关的一系列操作。图6示出了根据本公开实施例的侧链路通信中的定位的第二示例的示意图。
在图6中，第一用户设备被示出为UE1，其上至少安装有第一天线面板(被示出为AP1)和第二天线面板(被示出为AP2)；第二用户设备被示出为UE2，其上至少安装有第三天线面板(AP3)和第四天线面板(AP4)。仅仅作为示例而非限制，图中的AP1位于UE1的前部，并且AP2位于UE1的后部；AP3位于UE2的前部，并且AP4位于UE2的后部。可以看出，第二示例在第一示例的基础上，使得第一用户设备还可以利用安装在其上的多个位置的多个天线面板来实现侧链路通信中的定位功能。
与第一示例类似，在第二示例中，AP3发送的参考信号所占用的时间资源和/或频率资源与AP3在UE2上的位置(例如，前部)相关联，并且AP4发送的参考信号所占用的时间资源和/或频率资源与AP4在UE2上的位置(例如，后部)相关联。应该认识到的是，AP3在UE2上的位置与一个或多个时间资源和/或频率资源的关联关系以及AP4在UE2上的位置与一个或多个时间资源和/或频率资源的关联关系可以是缺省确定的，也可以是由UE2预先通知给UE1的。通常来说，与AP3相关联的一个或多个时间资源和/或频率资源和与AP4相关联的一个或多个时间资源和/或频率资源是互相独立并且是没有重叠的。相应地，UE1可以通过AP1(或AP2)接收由UE2的AP3(或AP4)发送的参考信号，并且可以基于天线面板位置与时频资源的关联关系和该参考信号所占用的时频资源来确定AP3(或AP4)在UE2上的位置。
根据本公开实施例的第二示例，可以确定第一用户设备(UE1)与第二用户设备(UE2)的相对位置，例如确定相对位置关系。
确定UE1与UE2之间的相对位置的两种方法已经在第一示例中进行了描述，其中UE1可以使用AP1或AP2中的任何一个天线面板来执行操作，此处不再赘述。
根据第二示例，确定UE1与UE2之间的相对位置的又一种方法可以包括UE1通过AP1接收由UE2的AP3或AP4中的一个天线面板发送的第一参考信号，并且UE1通过AP2接收由UE2的AP3或AP4中的同一个天线面板发送的第二参考信号。基于第一参考信号与第二参考信号的接收强度，可以确定UE1与UE2的前后位置关系。
具体而言，如600A所示，UE1可以通过AP1接收由UE2的AP4发送的第一参考信号，并且UE1可以通过AP2接收由UE2的AP4发送的第二参考信号(或者，第一参考信号和第二参考信号可以由UE2的AP3发送)。在第一参考信号的强度大于第二参考信号的强度的情况下，由于UE1已知AP1和AP2在自身上的安装位置，因此可以确定UE1位于UE2的后部。类似地，如600B所示，UE1可以通过AP1接收由UE2的AP3发送的第一参考信号，并且UE1可以通过AP2接收由UE2的AP3发送的第二参考信号(或者，第一参考信号和第二参考信号可以由UE2的AP4发送)。在第一参考信号的强度小于第二参考信号的强度的情况下，UE1可以确定自己位于UE2的前部。
应该理解的是，本文所指的参考信号的强度可以包括但不限于以下中的一个或以下中的多个的组合：参考信号接收功率(RSRP)、参考信号接收质量(RSRQ)、参考信号信干噪比(SINR)等。
进一步地，基于所确定的UE1与UE2的相对位置，UE1可以通过AP1或AP2中的一个天线面板接收由UE2的AP3或AP4中的一个天线面板发送的参考信号，以用于测量UE1与UE2之间的距离。作为示例，在UE1与UE2均为正常行驶的车辆的情况下，二者之间的距离(车距)d通常指的是后车的前部与前车的后部之间的距离。由此，可以选取UE1和UE2上最接近的两个天线面板传输的参考信号来测量或估计距离。具体而言，如600A所示，在确定UE1位于UE2的后部的情况下，两个用户设备之间的距离d可以由UE1通过AP1接收从UE2的AP4发送的参考信号来进行测量和估计。这是因为UE1已知AP1位于其前部，并且根据接收AP4发送的参考信号得知其位于UE2的后部，两个天线面板最接近。类似地，如600B所示，在确定UE1位于UE2的前部的情况下，两个用户设备之间的距离d可以由UE1通过AP2接收从UE2的AP3发送的参考信号来进行测量和估计。应该注意的是，与第一示例相比，第二示例中的这种测量用户设备之间的距离的方法通常可以不需要进行附加的调整。
应该理解的是，图6中的天线面板的位置仅仅为示例，并不旨在限制。例如，上述第二示例中的方法也可以适用于确定多个用户设备的相对左右位置关系和确定左右间距，其中第一天线面板和第二天线面板可以位于第一用户设备的左侧和右侧，并且第三天线面板和第四天线面板可以位于第二用户设备的左侧和右侧。
还应该理解的是，在第二示例中主要阐述了第一用户设备利用安装在其上的多个位 置的多个天线面板能够实现的定位功能。如果第一用户设备仅使用多个天线面板中的一个天线面板，那么可以使用第一示例中阐述的方法来实现多种定位操作。
本领域技术人员应该认识到的是，在第一用户设备和第二用户设备各自具有多个天线面板的情况下，二者的功能可以互换。换言之，第一用户设备也可以主要用作发送端用户设备，第二用户设备也可以主要用作接收端设备。例如，AP1发送的参考信号所占用的时间资源和/或频率资源与AP1在UE1上的位置(例如，前部)相关联，并且AP2发送的参考信号所占用的时间资源和/或频率资源与AP2在UE1上的位置(例如，后部)相关联。这种关联关系可以是缺省确定的，也可以由UE1预先通知给UE2。基于此，UE2可以利用上述示例中的由UE1执行的方法来实现与定位相关的一系列操作。
距离的测量与估计方法
在无线侧链路通信中的定位的第一示例和第二示例中，都涉及利用第二用户设备的天线面板和第一用户设备的天线面板来测量和估计二者之间的距离。以下将介绍两种可行的方法以用于距离的测量与估计。
根据本公开的一些实施例，可以利用参考信号接收功率(RSRP)来进行距离的测量与估计。具体而言，发送端用户设备的天线面板i与接收端用户设备的天线面板j之间的距离可以通过从天线面板i发送到天线面板j的参考信号的功率路径损耗来计算。作为示例，二者具有以下关系：
PLi,j＝32.4+20lgDi,j+20lgf
在上式中，PLi,j表示天线面板i和天线面板j之间传输的参考信号的路径损耗，Di,j表示发送端用户设备的天线面板i和接收端用户设备的天线面板j之间的距离，f表示频率(单位：MHz)。因此，利用上述关系式，可以通过参考信号的接收功率损耗来计算得出两个用户设备的两个天线面板之间的距离，进而可以通过适当的调整得到两个用户设备之间的距离。类似地，可以利用参考信号接收质量(RSRQ)等方法对用户设备之间的距离进行测量和估计。
根据本公开的另一些实施例，可以利用参考信号往返行程时间(Round Trip Time，RTT)来进行距离的测量与估计。具体而言，第一用户设备可以向第二用户设备发送第一定位参考信号，并且第二用户设备可以向第一用户设备发送第二定位参考信号。第一用户设备将接收第二定位参考信号与发送第一定位参考信号之间的时间差值 记录为第一定位信息。第二用户设备将接收第一定位参考信号与发送第二定位参考信号之间的时间差值作为第二定位信息发送给第一用户设备。基于此，第一用户设备将第一定位信息中的ΔT1与第二定位信息中的ΔT2进行求和，得到信号往返行程时间RTT＝ΔT1+ΔT2。由此，根据电磁信号传播公式可以得到两个用户设备之间的距离d＝c·RTT/2，其中c可以为光速3×108m/s。应该注意的是，在上述过程中，第一用户设备使用同一个天线面板发送第一定位参考信号和接收第二定位参考信号，类似地，第二用户设备使用同一个天线面板发送第二定位参考信号和接收第一定位参考信号。换言之，上述距离为来两个设备上的天线面板之间的距离，进而可以根据天线面板的位置对距离进行适当的调整，得到两个设备之间的距离。应该理解的是，在RTT测距方法中，同一个用户设备既用作接收端设备，也用作发送端设备。
信息交互
以上已经结合附图说明了根据本公开的实施例的第一用户设备(主要用作接收端用户设备)和第二用户设备(主要用作发送端用户设备)的示意性配置以及操作流程。下面将参考图7说明根据本公开实施例的用于无线通信系统中的侧链路通信中的定位的通信交互图。
如图7所示，在701处，第二用户设备预先向第一用户设备通知第二用户设备上的一个或多个天线面板的位置与一个或多个时间资源/频率资源(在本文中也简称为时频资源)的关联关系。本公开中特别关注用户设备具有多个天线面板的场景，因此以下交互流程以第一用户设备和第二用户设备各自具有位于两个不同位置的天线面板为例进行描述。如前所述，用户设备上的两个不同的天线面板所关联的时频资源可以是互相独立且不重叠的。替代地，上述关联关系可以是缺省确定的，或者可以由网络设备预先确定之后通知给各个用户设备。基于上述关联关系，第一用户设备可以根据接收到的参考信号所占用的时频资源来确定发送该参考信号的天线面板在第二用户设备上的位置，从而执行与定位相关的一系列操作，以用于提高定位性能。附加地和可选地，第二用户设备也可以预先向第一用户设备发送指示自身具有多个天线面板的消息，以使得第一用户设备可以灵活配置对多个天线面板发送的参考信号的接收以用于与定位相关的操作。
在702处，第一用户设备可以从第二用户设备接收参考信号，用于确定第一用户设备与第二用户设备的相对位置(例如，前后位置关系、左右位置关系、上下位置关系等) (703)。根据本公开的一些实施例，第一用户设备可以通过安装在其上的一个天线面板接收从第二用户设备的两个天线面板发送的参考信号，并且根据这些参考信号的强度大小和发送参考信号的相应天线面板的位置来确定第一用户设备和第二用户设备的相对位置(例如，参考本公开中的第一示例和图5所描述的操作)。根据本公开的另一些实施例，第一用户设备可以通过安装在其上的两个天线面板接收从第二用户设备的同一个天线面板发送的参考信号，并且根据自身的天线面板的位置和接收到的相应参考信号的强度大小来确定第一用户设备和第二用户设备的相对位置(例如，参考本公开中的第二示例和图6所描述的操作)。可选地，也可以利用卫星导航定位系统GPS来粗略地判定第一用户设备与第二用户设备之间的位置关系。
在704处，第一用户设备从第二用户设备接收参考信号，用于测量和估计第一用户设备与第二用户设备之间的距离(705)。应该理解的是，本文中的两个用户设备的间距指的是两个用户设备最接近部位之间的距离。例如，在第一用户设备和第二用户设备都是车辆的示例中，二者之间的距离可以是后车前部与前车后部之间的距离，或者是左车右侧与右车左侧之间的距离。根据本公开的一些实施例，第一用户设备可以通过安装在其上的一个天线面板接收从第二用户设备的两个天线面板中的最接近第一用户设备的一个天线面板发送的参考信号(最接近的天线面板可以基于所确定的两个用户设备的相对位置来确定)，以用于确定第一用户设备和第二用户设备的距离。应该理解的是，在这种情况下，可能需要根据需要对估计的距离进行适当的调整，以去除第一用户设备上的天线面板的位置对距离估计造成的影响(例如，参考本公开中的第一示例和图5所描述的操作)。根据本公开的另一些实施例，第一用户设备可以通过安装在其上的两个天线面板中的最接近第二用户设备的一个天线面板接收从第二用户设备的两个天线面板中的最接近第一用户设备的一个天线面板发送的参考信号(最接近的天线面板可以基于所确定的两个用户设备的相对位置来确定)，以用于确定第一用户设备和第二用户设备的距离(例如，参考本公开中的第二示例和图6所描述的操作)。
本领域技术人员应该认识到的是，上述距离的测量和估计可以利用参考信号接收功率(RSRP)、参考信号接收质量(RSRQ)等方法来执行。替代地，距离的测量和估计也可以利用参考信号往返行程时间(RTT)方法来执行。在RTT方法中，第一用户设备除了从第二用户设备接收定位参考信号之外，也需要向第二用户设备发送定位参考信号。
在706处，第一用户设备从第二用户设备接收参考信号，用于判定第一用户设备与第二用户设备之间的位置或移动是否存在异常情况(707)。该操作主要针对于第一用户设备和第二用户设备在同一条直线上移动的场景。作为示例，第一用户设备测量自身的同一个天线面板与第二用户设备的两个天线面板之间的距离(例如，包括第一距离和第二距离)。基于所确定的第一用户设备与第二用户设备的相对位置，第一用户设备将第一距离和第二距离的大小进行比较。如果该大小关系与正常移动情况下的大小关系不符，那么第一用户设备可以确定与第二用户设备之间的移动出现异常。例如，在确保自身移动正常的情况下，第一用户设备可以确定第二用户设备的移动出现异常。
相应地，在708处，第一用户设备可以将前面确定的与第二用户设备的相对位置、与第二用户设备的距离、以及与第二用户设备的移动的异常情况通知给第二用户设备。例如，在出现移动异常的情况下，第一用户设备自身可以更换移动轨道，同时可以警告第二用户设备，以使其尽快恢复正常。
应该注意的是，图7中的交互图仅仅提供了示例，并不旨在进行限制。图中可以包括更多或更少的步骤，并且也可以按照与图中描绘的步骤顺序不同的顺序来执行步骤。作为示例，708可以划分为三个步骤执行，即在三个步骤中由第一用户设备分别向第二用户设备通知关于相对位置、距离估计、以及移动异常情况的信息。可替代地，上述划分的三个步骤可以分别紧接在703、705和707之后执行。
应该理解的是，对称地，图7中的交互在第二用户设备主要作为接收端、第一用户设备主要作为发送端的场景中同样适用。换言之，在这种场景中，与701、702、704和706处的操作类似的操作(例如，假设记为701’、702’、704’和706’)可以由第二用户设备向第一用户设备发送，并且与703、705和707处的操作类似的操作(例如，假设记为703’、705’和707’)可以由第二用户设备执行。还应该理解的是，701’-707’的操作可以在701-707的操作之后进行，也可以与701-707的操作时间交错地进行，并且在这种情况下可以省略步骤708。
针对无线通信系统中的侧链路通信，本公开提出了将用户设备上的天线面板的位置与一个或多个时间资源和/或频率资源进行关联的方法，使得接收端用户设备能够根据参考信号所占用的时间资源和/或频率资源能够确定发送该参考信号的天线面板在发送端用户设备上的位置。进一步地，基于该构思，本公开提出了与侧链路通信中的定位相关的 操作的方法，包括确定多个用户设备的相对位置、确定多个用户设备之间的距离、确定多个用户设备之间的移动是否存在异常等。
根据本公开提出的发明构思和技术方案，能够实现有益的技术效果。一方面，本公开可以选择两个用户设备上更为接近的天线面板传输的参考信号进行距离的测量与估计，从而提高两个用户设备之间的距离的估计精度。另一方面，本公开能够便捷地基于所确定的两个用户设备的相对位置和通过比较所测量的与发送端设备上的不同位置的天线面板的距离大小，判断是否出现设备移动异常的情况。这在车载用户设备通信等场景中能够有效地提高安全性能，例如允许车辆及时更换行驶轨道并且向异常车辆发出警告。又一方面，通过参考信号所占用的时间资源和/或频率资源来隐性地指示发送参考信号的天线面板在用户设备上的安装位置(或附接位置)，能够大大节省消息开销。再一方面，用户设备可以根据接收到的关联关系来获知其他用户设备是否为具有多个天线面板的用户设备，从而能够灵活地利用接收到的参考信号来执行定位操作。
示例性方法
图8示出了根据本公开实施例的用于无线通信系统中的第一用户设备的示例方法800的流程图。该方法可以由侧链路通信中的第一用户设备(例如，主要用作接收端的用户设备)(或更具体地，电子设备200)执行。如图8所示，该方法800可以包括通过安装在第一用户设备上的第一天线面板接收由第二用户设备(例如，主要用作发送端的用户设备)的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联(方框S801)。在方框S802处，第一用户设备可以基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和上述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。该方法的详细示例操作可以参考上文关于第一用户设备(或更具体地，电子设备200)的操作描述，此处不再重复。
图9示出了根据本公开实施例的用于无线通信系统中的第二用户设备的示例方法900的流程图。该方法可以由侧链路通信中的第二用户设备(例如，主要用作发送端的用户设备)(或更具体地，电子设备500)执行。如图9所示，该方法900可以包括使用安装在第二设备用户上的第三天线面板向第一用户设备(例如，主要用作接收端的用户设备)发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二 用户设备上的位置相关联，以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和上述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置，如方框S901所示。该方法的详细示例操作可以参考上文关于第二用户设备(或更具体地，电子设备300)的操作描述，此处不再重复。
本公开的方案可以以如下的示例方式实施。
条款1、一种用于无线通信系统中的第一用户设备的电子设备，所述电子设备包括处理电路，所述处理电路被配置为使得第一用户设备执行以下操作：
通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联；以及
基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
条款2、根据条款1所述的电子设备，其中：
第二用户设备还包括安装在其上的第四天线面板，由第四天线面板发送的参考信号所占用的时间资源和/或频率资源与第四天线面板在第二用户设备上的位置相关联；以及
第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系以及第四天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系是缺省确定的，或者是由第二用户设备预先通知给第一用户设备的，其中与第三天线面板相关联的一个或多个时间资源和/或频率资源和与第四天线面板相关联的一个或多个时间资源和/或频率资源互相独立。
条款3、根据条款1或2所述的电子设备，其中所述参考信号包括定位参考信号或同步参考信号。
条款4、根据条款2所述的电子设备，其中：
第三天线面板位于第二用户设备的前部，并且第四天线面板位于第二用户设备的后部。
条款5、根据条款4所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
确定第一用户设备与第二用户设备的相对位置。
条款6、根据条款5所述的电子设备，其中确定第一用户设备与第二用户设备的相对位置包括：
通过第一天线面板接收由第二用户设备的第三天线面板发送的第一参考信号；
通过第一天线面板接收由第二用户设备的第四天线面板发送的第二参考信号；以及
响应于第一参考信号的强度大于第二参考信号的强度，确定第一用户设备位于第二用户设备的前部；或者响应于第一参考信号的强度小于第二参考信号的强度，确定第一用户设备位于第二用户设备的后部。
条款7、根据条款5所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
基于第一用户设备与第二用户设备的相对位置，通过第一天线面板接收由第三天线面板或第四天线面板中的一个天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离。
条款8、根据条款5所述的电子设备，所述处理电路还被配置为，响应于第一用户设备和第二用户设备在同一条直线上移动：
基于第一用户设备与第二用户设备的相对位置，并且基于通过第一天线面板所测量的与第二用户设备的第三天线面板的第一距离和所测量的与第二用户设备的第四天线面板的第二距离，确定第一用户设备和第二用户设备之间的移动是否存在异常情况。
条款9、根据条款8所述的电子设备，其中确定第一用户设备和第二用户设备之间的移动是否存在异常情况包括：
响应于第一用户设备位于第二用户设备的前部，基于第一距离大于第二距离，确定第一用户设备和第二用户设备之间的移动存在异常情况；或者
响应于第一用户设备位于第二用户设备的后部，基于第一距离小于第二距离，确定第一用户设备和第二用户设备之间的移动存在异常情况。
条款10、根据条款4所述的电子设备，其中：
第一用户设备还包括安装在其上的第二天线面板，以及
第一天线面板位于第一用户设备的前部，并且第二天线面板位于第一用户设备的后部。
条款11、根据条款10所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
确定第一用户设备与第二用户设备的相对位置。
条款12、根据条款11所述的电子设备，其中确定第一用户设备与第二用户设备的相对位置包括：
通过第一天线面板接收由第二用户设备的第三天线面板或第四天线面板中的一个天线面板发送的第一参考信号；
通过第二天线面板接收由第二用户设备的第三天线面板或第四天线面板中的所述一个天线面板发送的第二参考信号；以及
响应于第一参考信号的强度大于第二参考信号的强度，确定第一用户设备位于第二用户设备的后部；或者响应于第一参考信号的强度小于第二参考信号的强度，确定第一用户设备位于第二用户设备的前部。
条款13、根据条款11所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
基于第一用户设备与第二用户设备的相对位置，通过第一天线面板或第二天线面板中的一个天线面板接收由第三天线面板或第四天线面板中的一个天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离。
条款14、根据条款13所述的电子设备，其中：
响应于第一用户设备位于第二用户设备的前部，通过第二天线面板接收由第三天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离；或者
响应于第一用户设备位于第二用户设备的后部，通过第一天线面板接收由第四天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离。
条款15、根据条款1所述的电子设备，其中第一用户设备是车辆，并且第二用户设备是车辆。
条款16、一种用于无线通信系统中的第二用户设备的电子设备，所述电子设备包括 处理电路，所述处理电路被配置为使得第二用户设备执行以下操作：
使用安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联，以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
条款17、根据条款16所述的电子设备，其中：
第二用户设备还包括安装在其上的第四天线面板，由第四天线面板发送的参考信号所占用的时间资源和/或频率资源与第四天线面板在第二用户设备上的位置相关联；以及
第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系以及第四天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系是缺省确定的，或者是由第二用户设备预先通知给第一用户设备的，其中与第三天线面板相关联的一个或多个时间资源和/或频率资源和与第四天线面板相关联一个或多个时间资源和/或频率资源互相独立。
条款18、一种用于无线通信系统中的第一用户设备的方法，所述方法包括：
通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联；以及
基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
条款19、一种用于无线通信系统中的第二用户设备的方法，所述方法包括：
使用安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联，以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
条款20、一种存储有一个或多个可执行指令的计算机可读存储介质，所述一个或多 个可执行指令在由电子设备的一个或多个处理器执行时使得该电子设备执行根据条款18或19所述的方法。
条款21、一种包括可执行指令的计算机程序产品，所述可执行指令在由计算机的一个或多个处理器执行时，使得所述计算机执行根据条款18或19所述的方法。
应该指出，上述的应用实例仅仅是示例性的。本公开的实施例在上述应用实例中还可以任何其它适当的方式执行，仍可实现本公开的实施例所获得的有利效果。而且，本公开的实施例同样可应用于其它类似的应用实例，仍可实现本公开的实施例所获得的有利效果。
应该理解的是，根据本公开实施例的机器可读存储介质或程序产品中的机器可执行指令可以被配置为执行与上述设备和方法实施例相应的操作。当参考上述设备和方法实施例时，机器可读存储介质或程序产品的实施例对于本领域技术人员而言是明晰的，因此不再重复描述。用于承载或包括上述机器可执行指令的机器可读存储介质和程序产品也落在本公开的范围内。这样的存储介质可以包括但不限于软盘、光盘、磁光盘、存储卡、存储棒等等。
另外，应该理解的是，上述系列处理和设备也可以通过软件和/或固件实现。在通过软件和/或固件实现的情况下，从存储介质或网络向具有专用硬件结构的计算机，例如图10所示的通用个人计算机1100安装构成该软件的程序，该计算机在安装有各种程序时，能够执行各种功能等等。图10是示出作为本公开的实施例中可采用的信息处理设备的个人计算机的示例结构的框图。在一个例子中，该个人计算机可以对应于根据本公开的上述示例性终端设备。
在图10中，中央处理单元(CPU)1101根据只读存储器(ROM)1102中存储的程序或从存储部分1108加载到随机存取存储器(RAM)1103的程序执行各种处理。在RAM 1103中，也根据需要存储当CPU 1101执行各种处理等时所需的数据。
CPU 1101、ROM 1102和RAM 1103经由总线1104彼此连接。输入/输出接口1105也连接到总线1104。
下述部件连接到输入/输出接口1105：输入部分1106，包括键盘、鼠标等；输出部分1107，包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等，和扬声器等； 存储部分1108，包括硬盘等；和通信部分1109，包括网络接口卡比如LAN卡、调制解调器等。通信部分1109经由网络比如因特网执行通信处理。
根据需要，驱动器1110也连接到输入/输出接口1105。可拆卸介质1111比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器1110上，使得从中读出的计算机程序根据需要被安装到存储部分1108中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可拆卸介质1111安装构成软件的程序。
本领域技术人员应当理解，这种存储介质不局限于图10所示的其中存储有程序、与设备相分离地分发以向用户提供程序的可拆卸介质1111。可拆卸介质1111的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM 1102、存储部分1108中包含的硬盘等等，其中存有程序，并且与包含它们的设备一起被分发给用户。
本公开的技术能够应用于各种产品。
例如，根据本公开的实施例的电子设备200和300可以被实现为各种电子设备/终端设备或者被包含在各种电子设备/终端设备中，而如图8和/或图9所示的方法也可由各种电子设备/终端设备执行。
例如，本公开中提到的终端设备在一些示例中也称为用户设备，可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。用户设备还可以被实现为执行机器对机器(M2M)通信的终端(也称为机器类型通信(MTC)终端)。此外，用户设备可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个晶片的集成电路模块)。在一些情况下，用户设备可以使用多种无线通信技术进行通信。例如，用户设备可以被配置为使用GSM、UMTS、CDMA2000、WiMAX、LTE、LTE-A、WLAN、NR、蓝牙等中的两者或更多者进行通信。在一些情况下，用户设备也可以被配置为仅使用一种无线通信技术进行通信。
以下将参照图11至图12描述根据本公开的示例。
关于用户设备的示例
第一示例
图11是示出可以应用本公开内容的技术的智能电话1200的示意性配置的示例的框图。智能电话1200包括处理器1201、存储器1202、存储装置1203、外部连接接口1204、摄像装置1206、传感器1207、麦克风1208、输入装置1209、显示装置1210、扬声器1211、无线通信接口1212、一个或多个天线开关1215、一个或多个天线1216、总线1217、电池1218以及辅助控制器1219。在一种实现方式中，此处的智能电话1200(或处理器1201)可以对应于上述无线通信系统中的第一用户设备(或更具体地，电子设备200)或第二用户设备(或更具体地，电子设备300)。
处理器1201可以为例如CPU或片上系统(SoC)，并且控制智能电话1200的应用层和另外层的功能。存储器1202包括RAM和ROM，并且存储数据和由处理器1201执行的程序。存储装置1203可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口1204为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话1200的接口。
摄像装置1206包括图像传感器(诸如电荷耦合器件(CCD)和互补金属氧化物半导体(CMOS))，并且生成捕获图像。传感器1207可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。麦克风1208将输入到智能电话1200的声音转换为音频信号。输入装置1209包括例如被配置为检测显示装置1210的屏幕上的触摸的触摸传感器、小键盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置1210包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话1200的输出图像。扬声器1211将从智能电话1200输出的音频信号转换为声音。
无线通信接口1212支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口1212通常可以包括例如BB处理器1213和RF电路1214。BB处理器1213可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路1214可以包括例如混频器、滤波器和放大器，并且经由天线1216来传送和接收无线信号。无线通信接口1212可以为其上集成有BB处理器1213和RF电路1214的一个芯片模块。如图11所示，无线通信接口1212可以包括多 个BB处理器1213和多个RF电路1214。虽然图11示出其中无线通信接口1212包括多个BB处理器1213和多个RF电路1214的示例，但是无线通信接口1212也可以包括单个BB处理器1213或单个RF电路1214。
此外，除了蜂窝通信方案之外，无线通信接口1212可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口1212可以包括针对每种无线通信方案的BB处理器1213和RF电路1214。
天线开关1215中的每一个在包括在无线通信接口1212中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线1216的连接目的地。
天线1216中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口1212传送和接收无线信号。如图11所示，智能电话1200可以包括多个天线1216。虽然图11示出其中智能电话1200包括多个天线1216的示例，但是智能电话1200也可以包括单个天线1216。
此外，智能电话1200可以包括针对每种无线通信方案的天线1216。在此情况下，天线开关1215可以从智能电话1200的配置中省略。
总线1217将处理器1201、存储器1202、存储装置1203、外部连接接口1204、摄像装置1206、传感器1207、麦克风1208、输入装置1209、显示装置1210、扬声器1211、无线通信接口1212以及辅助控制器1219彼此连接。电池1218经由馈线向图11所示的智能电话1200的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器1219例如在睡眠模式下操作智能电话1200的最小必需功能。
第二示例
图12是示出可以应用本公开内容的技术的汽车导航设备1320的示意性配置的示例的框图。汽车导航设备1320包括处理器1321、存储器1322、全球定位系统(GPS)模块1324、传感器1325、数据接口1326、内容播放器1327、存储介质接口1328、输入装置1329、显示装置1330、扬声器1331、无线通信接口1333、一个或多个天线开关1336、一个或多个天线1337以及电池1338。在一种实现方式中，此处的汽车导航设备1320(或处理器1321)可以对应于上述无线通信系统中的第一用户设备(或更具体地，电子设备200)或第二用户设备(或更具体地，电子设备300)。
处理器1321可以为例如CPU或SoC，并且控制汽车导航设备1320的导航功能和另外的功能。存储器1322包括RAM和ROM，并且存储数据和由处理器1321执行的程序。
GPS模块1324使用从GPS卫星接收的GPS信号来测量汽车导航设备1320的位置(诸如纬度、经度和高度)。传感器1325可以包括一组传感器，诸如陀螺仪传感器、地磁传感器和空气压力传感器。数据接口1326经由未示出的终端而连接到例如车载网络1341，并且获取由车辆生成的数据(诸如车速数据)。
内容播放器1327再现存储在存储介质(诸如CD和DVD)中的内容，该存储介质被插入到存储介质接口1328中。输入装置1329包括例如被配置为检测显示装置1330的屏幕上的触摸的触摸传感器、按钮或开关，并且接收从用户输入的操作或信息。显示装置1330包括诸如LCD或OLED显示器的屏幕，并且显示导航功能的图像或再现的内容。扬声器1331输出导航功能的声音或再现的内容。
无线通信接口1333支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口1333通常可以包括例如BB处理器1334和RF电路1335。BB处理器1334可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路1335可以包括例如混频器、滤波器和放大器，并且经由天线1337来传送和接收无线信号。无线通信接口1333还可以为其上集成有BB处理器1334和RF电路1335的一个芯片模块。如图12所示，无线通信接口1333可以包括多个BB处理器1334和多个RF电路1335。虽然图12示出其中无线通信接口1333包括多个BB处理器1334和多个RF电路1335的示例，但是无线通信接口1333也可以包括单个BB处理器1334或单个RF电路1335。
此外，除了蜂窝通信方案之外，无线通信接口1333可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线LAN方案。在此情况下，针对每种无线通信方案，无线通信接口1333可以包括BB处理器1334和RF电路1335。
天线开关1336中的每一个在包括在无线通信接口1333中的多个电路(诸如用于不同的无线通信方案的电路)之间切换天线1337的连接目的地。
天线1337中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口1333传送和接收无线信号。如图12所示，汽车导 航设备1320可以包括多个天线1337。虽然图12示出其中汽车导航设备1320包括多个天线1337的示例，但是汽车导航设备1320也可以包括单个天线1337。
此外，汽车导航设备1320可以包括针对每种无线通信方案的天线1337。在此情况下，天线开关1336可以从汽车导航设备1320的配置中省略。
电池1338经由馈线向图12所示的汽车导航设备1320的各个块提供电力，馈线在图中被部分地示为虚线。电池1338累积从车辆提供的电力。
本公开内容的技术也可以被实现为包括汽车导航设备1320、车载网络1341以及车辆模块1342中的一个或多个块的车载系统(或车辆)1340。车辆模块1342生成车辆数据(诸如车速、发动机速度和故障信息)，并且将所生成的数据输出至车载网络1341。
以上参照附图描述了本公开的示例性实施例，但是本公开当然不限于以上示例。本领域技术人员可在所附权利要求的范围内得到各种变更和修改，并且应理解这些变更和修改自然将落入本公开的技术范围内。
例如，在以上实施例中包括在一个单元中的多个功能可以由分开的装置来实现。替选地，在以上实施例中由多个单元实现的多个功能可分别由分开的装置来实现。另外，以上功能之一可由多个单元来实现。无需说，这样的配置包括在本公开的技术范围内。
在该说明书中，流程图中所描述的步骤不仅包括以所述顺序按时间序列执行的处理，而且包括并行地或单独地而不是必须按时间序列执行的处理。此外，甚至在按时间序列处理的步骤中，无需说，也可以适当地改变该顺序。
虽然已经详细说明了本公开及其优点，但是应当理解在不脱离由所附的权利要求所限定的本公开的精神和范围的情况下可以进行各种改变、替代和变换。而且，本公开实施例的术语“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、物品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、物品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、物品或者设备中还存在另外的相同要素。

Claims (21)

  1. 一种用于无线通信系统中的第一用户设备的电子设备，所述电子设备包括处理电路，所述处理电路被配置为使得第一用户设备执行以下操作：
    通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联；以及
    基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
  2. 根据权利要求1所述的电子设备，其中：
    第二用户设备还包括安装在其上的第四天线面板，由第四天线面板发送的参考信号所占用的时间资源和/或频率资源与第四天线面板在第二用户设备上的位置相关联；以及
    第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系以及第四天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系是缺省确定的，或者是由第二用户设备预先通知给第一用户设备的，其中与第三天线面板相关联的一个或多个时间资源和/或频率资源和与第四天线面板相关联的一个或多个时间资源和/或频率资源互相独立。
  3. 根据权利要求1或2所述的电子设备，其中所述参考信号包括定位参考信号或同步参考信号。
  4. 根据权利要求2所述的电子设备，其中：
    第三天线面板位于第二用户设备的前部，并且第四天线面板位于第二用户设备的后部。
  5. 根据权利要求4所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
    确定第一用户设备与第二用户设备的相对位置。
  6. 根据权利要求5所述的电子设备，其中确定第一用户设备与第二用户设备的相对位置包括：
    通过第一天线面板接收由第二用户设备的第三天线面板发送的第一参考信号；
    通过第一天线面板接收由第二用户设备的第四天线面板发送的第二参考信号；以及
    响应于第一参考信号的强度大于第二参考信号的强度，确定第一用户设备位于第二用户设备的前部；或者响应于第一参考信号的强度小于第二参考信号的强度，确定第一用户设备位于第二用户设备的后部。
  7. 根据权利要求5所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
    基于第一用户设备与第二用户设备的相对位置，通过第一天线面板接收由第三天线面板或第四天线面板中的一个天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离。
  8. 根据权利要求5所述的电子设备，所述处理电路还被配置为，响应于第一用户设备和第二用户设备在同一条直线上移动：
    基于第一用户设备与第二用户设备的相对位置，并且基于通过第一天线面板所测量的与第二用户设备的第三天线面板的第一距离和所测量的与第二用户设备的第四天线面板的第二距离，确定第一用户设备和第二用户设备之间的移动是否存在异常情况。
  9. 根据权利要求8所述的电子设备，其中确定第一用户设备和第二用户设备之间的移动是否存在异常情况包括：
    响应于第一用户设备位于第二用户设备的前部，基于第一距离大于第二距离，确定第一用户设备和第二用户设备之间的移动存在异常情况；或者
    响应于第一用户设备位于第二用户设备的后部，基于第一距离小于第二距离，确定第一用户设备和第二用户设备之间的移动存在异常情况。
  10. 根据权利要求4所述的电子设备，其中：
    第一用户设备还包括安装在其上的第二天线面板，以及
    第一天线面板位于第一用户设备的前部，并且第二天线面板位于第一用户设备的后部。
  11. 根据权利要求10所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
    确定第一用户设备与第二用户设备的相对位置。
  12. 根据权利要求11所述的电子设备，其中确定第一用户设备与第二用户设备的相对位置包括：
    通过第一天线面板接收由第二用户设备的第三天线面板或第四天线面板中的一个天线面板发送的第一参考信号；
    通过第二天线面板接收由第二用户设备的第三天线面板或第四天线面板中的所述一个天线面板发送的第二参考信号；以及
    响应于第一参考信号的强度大于第二参考信号的强度，确定第一用户设备位于第二用户设备的后部；或者响应于第一参考信号的强度小于第二参考信号的强度，确定第一用户设备位于第二用户设备的前部。
  13. 根据权利要求11所述的电子设备，所述处理电路还被配置为使得第一用户设备执行以下操作：
    基于第一用户设备与第二用户设备的相对位置，通过第一天线面板或第二天线面板中的一个天线面板接收由第三天线面板或第四天线面板中的一个天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离。
  14. 根据权利要求13所述的电子设备，其中：
    响应于第一用户设备位于第二用户设备的前部，通过第二天线面板接收由第三天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离；或者
    响应于第一用户设备位于第二用户设备的后部，通过第一天线面板接收由第四天线面板发送的参考信号，以用于测量第一用户设备与第二用户设备之间的距离。
  15. 根据权利要求1所述的电子设备，其中第一用户设备是车辆，并且第二用户设备 是车辆。
  16. 一种用于无线通信系统中的第二用户设备的电子设备，所述电子设备包括处理电路，所述处理电路被配置为使得第二用户设备执行以下操作：
    使用安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联，以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
  17. 根据权利要求16所述的电子设备，其中：
    第二用户设备还包括安装在其上的第四天线面板，由第四天线面板发送的参考信号所占用的时间资源和/或频率资源与第四天线面板在第二用户设备上的位置相关联；以及
    第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系以及第四天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系是缺省确定的，或者是由第二用户设备预先通知给第一用户设备的，其中与第三天线面板相关联的一个或多个时间资源和/或频率资源和与第四天线面板相关联一个或多个时间资源和/或频率资源互相独立。
  18. 一种用于无线通信系统中的第一用户设备的方法，所述方法包括：
    通过安装在第一用户设备上的第一天线面板接收由第二用户设备的安装在其上的第三天线面板发送的参考信号，其中该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联；以及
    基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源，确定第三天线面板在第二用户设备上的位置。
  19. 一种用于无线通信系统中的第二用户设备的方法，所述方法包括：
    使用安装在第二设备用户上的第三天线面板向第一用户设备发送参考信号，该参考信号所占用的时间资源和/或频率资源与第三天线面板在第二用户设备上的位置相关联， 以使得第一用户设备基于第三天线面板在第二用户设备上的位置与一个或多个时间资源和/或频率资源的关联关系和所述参考信号所占用的时间资源和/或频率资源来确定第三天线面板在第二用户设备上的位置。
  20. 一种存储有一个或多个可执行指令的计算机可读存储介质，所述一个或多个可执行指令在由电子设备的一个或多个处理器执行时使得该电子设备执行根据权利要求18或19所述的方法。
  21. 一种包括可执行指令的计算机程序产品，所述可执行指令在由计算机的一个或多个处理器执行时，使得所述计算机执行根据权利要求18或19所述的方法。
PCT/CN2023/103081 2022-07-01 2023-06-28 用于无线通信系统中的电子设备和方法 WO2024002134A1 (zh)

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