EP3682556A1 - Twin-transceiver umfassend einen ersten und einen zweiten transceiver - Google Patents
Twin-transceiver umfassend einen ersten und einen zweiten transceiverInfo
- Publication number
- EP3682556A1 EP3682556A1 EP18765900.8A EP18765900A EP3682556A1 EP 3682556 A1 EP3682556 A1 EP 3682556A1 EP 18765900 A EP18765900 A EP 18765900A EP 3682556 A1 EP3682556 A1 EP 3682556A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transceiver
- twin
- antenna
- information
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
Definitions
- Embodiments of the present invention relate to a twin transceiver and a method for operating the same.
- Preferred embodiments relate to a vehicle with a twin transceiver, z. For example, for vehicle-to-vehicle communication.
- V2V Ve- hicle to Vehicle
- vehicle-to-vehicle vehicle-to-vehicle
- DSRC Dedicated Short Range Communication, de-uced short-range communication, typically in the 5.8 or 5.9 GHz frequency range
- mmW millimeter-wave
- the cooperative driving application in ferry traffic offers mileage-wave-based point-to-point connections within vehicle groups with decisive performance advantages.
- antennas with a strong directional characteristic are frequently used due to the transmission power requirements, which makes application in a dynamic environment more difficult.
- connection establishment and connection maintenance poses a particular challenge with respect to connection establishment and connection maintenance as well as ad-hoc coordinated media access.
- the search for communication partners can be carried out by sequentially scanning all possible antenna alignments.
- the coordination of communication as well as the exchange of control information in mmW communication networks takes place, for example, in temporal change with the user data communication over the same radio channel (the coordination of the temporal communication sequence either takes place explicitly by one of the involved stations or decentralized).
- the optimal antenna alignment is determined by mutual sequential exchange of control information.
- V2V communication based on IEEE 802.1 1 p and the ITS-G5 (DSRC) based on it, as well as LTE-V as of 3GPP Release 14 will be realized.
- Vehicles equipped with such radio interfaces are expected to continuously transmit Cooperative Awareness Messages (CAM) information to their environment.
- CAM Cooperative Awareness Messages
- this information includes the geo-coordinates of each vehicle determined via GNSS, which can be used as additional information to reduce the signaling overhead in the antenna alignment by restricting the spatial search range.
- the focus in these technologies is on the communication of short status messages with comparatively low bandwidth. To meet the need for increased bandwidth, there is a need for an optimized approach.
- the object of the present invention is to provide a concept which offers an improved compromise between bandwidth, communication setup and antenna alignment or antenna tracking, in particular in the dynamic road environment.
- Embodiments of the present invention provide a twin transceiver having a first transceiver and a second transceiver. Each of these two transceivers is coupled to at least one antenna (or even to a multi-antenna antenna array).
- the first transceiver is configured to establish a first communication connection to another transceiver in order to provide this data via a second communication connection to be established or established.
- the second transceiver is configured to set up the second communication connection to the further transceiver, wherein the at least one antenna of the second transceiver is controlled by the second transceiver such that a directional radio signal (radio signal with a severely limited angle, such as an angle ⁇ 20 ° or an angle ⁇ 10 ° or an angle ⁇ 5 ° or an angle ⁇ 1 °) is emitted.
- this second communication connection is established by means of a frequency band within a range of 30 GHz to 300 GHz, ie in the frequency range of millimeter waves.
- standard radio interface which already exist for example anyway, such as DSRC or LTE-V communication connection, can be used as the first radio interface for data exchange necessary for the connection establishment and connection maintenance.
- Core of the present invention is that it has been recognized that wireless connections, z. B. based on millimeter waves, even with highly direct coupling of the radio signal in the dynamic road environment can be used if other channels (for example, omnidirectional radio channels) take over the necessary for the connection setup or the connection maintenance data exchange. In other words, this means that a quasi-omnidirectional channel is used to find communication partners and initiate connections.
- These can then, according to exemplary embodiments, transmit beacon information, information regarding the resource utilization or information associated with a connection request or a flow control.
- connection setup can also be exchanged on the basis of which the alignment of the directional radio signal associated with the second communication connection can take place.
- This approach offers advantages in terms of connection setup in particular: the time delay in establishing a connection between two vehicles is reduced and the maximum distance for initiating the connection setup is increased.
- Heterogeneous environments ie the coexistence of vehicles with and without millimeter-wave radio interfaces, are used in this concept of methods, e.g. B. considered for the connection setup.
- the second transceiver is configured to control the at least one antenna of the second transceiver such that a transmission and / or reception direction of the radio signal radiated by the at least one antenna is set as a function of the information about the second communication connection to be set up or constructed.
- the alignment takes place, for example, so that the radio signal to be transmitted is oriented in a direction in which the position of the further twin transceiver or the antenna thereof is located, the information about the position being obtained via the first communication connection.
- the first transceiver In contrast to the strongly directed radio characteristics of the second transceiver, the first transceiver preferably operates quasi-onmidirectionally or with varying emission characteristics such that the data to be determined are "round-blasted", ie, emitted either with the same energy in all directions or with alternating directions
- the control information exchanged over the first communication connection is available in a direction-independent manner, and this direction-independent availability enables coordination the communication resources in larger vehicle groups and thereby contributes to maximizing channel usage.
- information is made available in the further transceivers via the data, which symbolizes a willingness to communicate. These data are also called beacons. Further, at the same time, the twin transceiver can broadcast an ID or a unique feature (e.g., a preamble) over which the same is identifiable regardless of the radio interface used. As a consequence, the information is advantageously available for further twin transceivers or transceivers in the environment that the twin transceiver is there and which it is.
- all handshake procedures which u. a. Connection requests (indication to initiate a connection establishment) or classical flow control (information for initiation and termination of data transfer) belong.
- connection requests indication to initiate a connection establishment
- classical flow control information for initiation and termination of data transfer
- control data in the form of information about a position of the twin transceiver or further twin transceiver, information about a relative position of the second twin transceiver relative to one another, information about a movement of the twin transceiver can be transmitted via this first communication link or the further twin transceiver or information about a relative movement of the two twin transceivers are exchanged with each other. Based on the information about the position or position change can then take place both on the side of the second transceiver of the twin transceiver or the second transceiver of the other twin transceiver alignment of the antennas for sending and receiving.
- Additive or alternatively data can also be equal over a set or over a set Antenna orientation for the second communication link are exchanged.
- information about the current reception quality of the second communication connection can also be exchanged simultaneously.
- an availability information about the other second transceiver can be provided or more antennas. This reduces the negative impact of beam pairing and tracking procedures on latency and data rate.
- this first communication connection By means of further control information about this first communication connection and data regarding the resource allocation, such.
- data regarding the resource allocation For example, with regard to the allocation of frequencies, time, space, code or assignment of certain beams. It is often the case that, particularly in the vehicle-to-vehicle communication environment, several vehicles and thus also several twin transceivers are combined into a so-called cluster, the resources within this cluster being themselves organized. For this, resources are often assigned to a cluster, which can then be distributed among each other accordingly. Therefore, according to further exemplary embodiments, information about the allocation of the information available to the cluster can be exchanged via this first communication connection. Of course, then the actual resource organization can be done via this first communication connection. In addition, the data exchanged over the second communication link may also include information about the subscribers associated with the cluster.
- the twin transceiver comprises a further second transceiver, which is coupled to at least one further antenna and is designed to set up a third communication connection to a further twin transceiver.
- This is again a communication connection based on strongly directed radio signals.
- the further one or more antennas can be arranged at a different position. If you start from a vehicle, z. For example, an antenna group or an antenna at the front and an antenna group or antenna at the rear of the vehicle can be arranged so as to communicate with several further twin transceivers in case the other twin transceiver changes its position from back to front or vice versa.
- twin transceiver for preferably the associated or the associated antennas.
- first and second transceivers two different communication interfaces
- the twin transceiver can communicate via the first communication connection (typically a standard communication connection) to all vehicles capable of V2V.
- first communication connection typically a standard communication connection
- V2X-capable elements can establish a communication connection, which is to further twin transceivers then via the second communication connection (millimeter wave range) a communication connection with increased data throughput is possible.
- first transceiver is designed to transmit control information and / or payload data
- the second transceiver is designed to primarily exchange only payload data.
- Another embodiment relates to a corresponding method for operating a twin transceiver.
- the method comprises the steps of establishing a first communication connection by means of a first transceiver 12 and establishing a second communication connection by means of a second transceiver. Data about the construction of the second communication connection or about the established second communication connection is exchanged via the first communication connection, while the user data is preferably exchanged via the second communication connection.
- This method can be performed by a computer program.
- 1 is a schematic block diagram of a twin transceiver in communication with another twin transceiver according to basic embodiments; a schematic representation of several vehicles with transceivers or twin transceivers according to embodiments; and 2b shows a schematic block diagram for illustrating exchanged control information between a plurality of twin transceivers according to embodiments.
- 1 shows a twin transceiver 10a in communication with another twin transceiver 10b.
- Each twin transceiver 10a and 10b comprises a first transceiver 12 and a second transceiver 14.
- Each transceiver consists of a combination of transmitter and receiver.
- the transceiver 12 is coupled to an antenna 12a, while the transceiver 14 is coupled to an antenna 14a1.
- a first communication link 16 is built with the aid of the at least one antenna 12a to the first transceiver 12 of the further twin transceiver 10b.
- Control information relating to the second communication connection 18 to be set up or exchanged is exchanged via this first communication connection 16.
- data for finding and identifying communication partners with a suitable second transceiver 14 the (electronic) alignment of the transmitting and receiving antennas with each other and the coordination of communication resources (time, frequency,...) Can be realized.
- the first transceivers 12 of the two twin transceivers 10a and 10b may be transceivers, for example, for the IEEE802.1 1 p, the ITS-G5 (DSRC), or the LTE-V (from 3GPP Release 14) standard are designed.
- the actual user data exchange takes place via the respectively second transceivers 14 of the two twin transceivers 10a and 10b.
- the second communication link 18 is is a so-called high-directivity communication link (ie, a high-directional radio signal) established between the two transceivers 14.
- the background to this is that the second transceivers 14, for example, for the so-called millimeter wave frequency range (generally between 30 and 300 GHz) are laid out.
- Such a frequency range enables high bandwidths and thus high data throughput.
- high signal energy is generally required due to the high signal attenuation prevailing in this frequency range.
- the antennas 14a1 are operated highly directively, so that the radiated power is only at a certain solid angle, eg 10 ° opening angle or 3 ° opening angle or even only opening angle is radiated. This can be done for example by electronically controlled directional antennas.
- electronically controlled directional antennas usually several antennas are used instead of a single antenna.
- the use of one or more optional antennas is illustrated here by means of the optional antenna 14a2. That is to say, for corresponding exemplary embodiments, the transceivers 14 are designed to operate beamforming with the antennas 14a1 and 14a2 so as to impart the corresponding directivity to the radio signal for establishing the second communication link 18.
- the transceiver 14 has been characterized as a transceiver designed for mmW connections, it is also used as radio interface parts for other specifications or standards, such as eg. B. the LTE-V standard can be designed.
- the first communication connection is based on the ITS-G5 standard.
- This DSRC standard already provides so-called CAMs (Cooperative Awareness Messenges). These can be transmitted periodically via DSRC and can be extended by one information block. Control information for further radio interfaces present in the vehicle, that is to say the mmW radio interface, can be embedded in this information block. As a result, this leads to an out-of-band signaling.
- the control information supports operations on the Physical Transfer Layer (PHY), Media Access Layer (MAC), Radio Resource Management Layer (RRM) and Application Layer.
- the information transmitted via the signaling channel does not include, but is not limited to: - Beacons
- the beacons are, in principle, an availability information with which the twin transceiver 10a signals its surroundings, which thus also signals the twin transceiver 10b that it is present and not occupied.
- the type of radio interface eg mmW
- Further information on important interface parameters, e.g. for band identification may be included.
- Further information content in these beacons in addition to the availability is information about the current position of the twin transceiver or the antenna thereof or information about its movement.
- the RRM information can be used to realize the resource distribution.
- information about a resource utilization at the location of the vehicle ie, for example, about the resources perceived by the vehicle, is provided in the first place.
- the transceiver of C2 analyzes the currently prevailing resource utilization and, for example, recognizes here that the transceiver of C1 occupies certain resources. This assignment is not recognizable for the transceiver of C3, eg because of the distance or because of the shading by L1.
- resource allocation is also reported to the C3, but resources in this sense are not exclusively LTE PRB (Physical Resource Block) and mmW Beamformer (im Such resource management is particularly useful in the case of a distributed, self-organizing network, for example, globally coordinated resources may be transferred from a resource pool to a vehicle cluster, with the vehicles within the cluster becoming autonomous to get managed.
- LTE PRB Physical Resource Block
- mmW Beamformer mmW Beamformer
- An advantage of resource management over the first communication link is that the virtual mechanisms for the list-before-talk key are still possible, and cluster group IDs can also be provided via the first communication link 16 For example, they can be used to identify vehicle-to-vehicle networks (VANETs) or RRM groups Cluster or group IDs do not necessarily have to match the vehicle groups (application level, eg platoons).
- VANETs vehicle-to-vehicle networks
- RRM groups Cluster or group IDs do not necessarily have to match the vehicle groups (application level, eg platoons).
- connection request For the connection establishment procedure, a connection request can be seen. In this case, it is indicated that an initiation of the connection setup procedure between the transmitting and an adjacent vehicle identifiable as a communication partner is desired.
- the connection requestor sends a connection request on a resource identifiable as available. This information can be taken from the RRM data.
- a confirmation by the communication partner on the same resource is awaited. This enables implementation of the connection request as a low-disturbance burst for all other active communications.
- a malfunction indication of the communication partner can be transmitted to the resource used, if z.
- an out-of-band grant can be realized.
- a connection request is sent via the first radio interface (that is to say via DSRC, for example).
- the resource allocation and the fault indication can then also take place via this first communication connection.
- the data for beam pairing and beam tracking via this first communication link are exchanged, with an in-band exchange is possible.
- the flow control performed regularly during data exchange can also be done out-of-band via the first communication connection or in-band via the second communication connection.
- C1, C2 and C3 a typical communication between three communication paths, referred to as C1, C2 and C3, will be explained. It is assumed that all communication partners C1 to C3 are equipped with one of the above-explained twin transceivers, so that therefore at least one, preferably all, interference information on the first communication interface, ie the first transceiver 12, z. As a DSRC transceiver to be handled.
- FIG. 2a shows four vehicles, which are marked with C1, C2 and C3 vehicles with a twin transceiver, z. B. a DSRC / mmW twin transceiver while the vehicle L1 is a vehicle without such an interface.
- each of the twin transceivers can comprise two second transceivers, with each of the two second transceivers being coupled, for example, to an antenna or an antenna group.
- the antennas may be arranged, for example, at different positions from the vehicle, so that z. B. a forward-facing air interface and a rear-facing air interface is formed.
- FIG. 2b shows the control data exchanged via the first radio interface.
- the twin transceiver of the vehicle C2 informs the twin transceivers of the vehicles C1 and C3 that it is available and is equipped with a mmW interface or in general a communication interface with a higher bandwidth and a strong directional characteristic.
- This step is provided with the reference AA (Availability Announcement).
- this Cam message also includes information about the position of C2 so that the Cam-receiving partners C1 and C3 can calculate how they are positioned relative to C2. This information (Cam W / mmW Announcement) is transmitted to C1 and C3, whereby C3 does not want a communication setup and therefore ignores this information.
- C1 wants to establish a connection with C2, where C1 wants to use its front-facing mmW interface because of its position opposite C2.
- the selection of the front antenna or of the transceiver assigned to the front antenna is made by C1 on the basis of the obtained position information of C2.
- the transceiver of C1 controls its forward mmW antenna beam towards C2 or to the coordinates emitted by C2.
- C1 answers the received Availability Announcement information with a Connection request to C2 and directly after a connection request for the rear mmW antenna of C2.
- This step is provided with reference character CR (Communication Request), C2 can now control the mmW antenna beam of the rear antenna to C1 or its coordinates in the subsequent step. Starting from this, a connection is now established.
- the illustrated data transfer is performed with DSRC or with a comparable omnidirectional communication technology. Due to the greater communication coverage of DSRC or comparable systems compared with mmW radio interfaces, the control information (see AA) thus emitted is available to a larger number of vehicles (see C3 and C1) in the environment and permits distributed coordination.
- each transceiver 14 may be connected, for example, to a plurality of antennas, here by way of example to the antennas 14a1 and 14a2. These two antennas can be beam-forming operated.
- the antenna array comprising the two antennas 14a1 and 14a2 is typically arranged on one side of the vehicle.
- a further second transceiver for. B. also be arranged with two antennas, as shown by the optional element 15, 15a1 and 15a.
- This second transceiver 15 can establish either a parallel connection 18 'to the transceiver 10b or a further connection to another 18 "not shown.
- the antenna arrangement comprising the antennas 14a1 and 14a2 is arranged on a side different from the antenna arrangement comprising Antennas 15a1 and 15a2 are designed to establish communication links in different directions, as explained with reference to Fig.
- each antenna arrangement comprises two or more antennas (compare 14a1 / 14a2 and 15a1)
- the transceiver is coupled to an antenna here, but the use of multiple antennas advantageously allows the beams to be transmitted through the antenna arrays 14a1 + 14a2 and 15a1, respectively + 15a2 to align accordingly, while the fundamental direction of radiation of the respective transceiver 14 or 15 takes place.
- the necessary exchange of control information can be carried out completely via the first transceiver 12.
- a simple alignment of the directional radio signal 18 or 18 'or 18 " is effected by selecting one of the antennas 14a1, 14a2, 15a1 or 15a2 directed radio signal 18, 18 'and 18 "assumed.
- a directional radio signal usually has a variable beam width, which can be narrowed depending on the setting.
- a specialist speaks of a directional radio signal when the beam has an opening angle of ⁇ at least 30 ° or of ⁇ 10 ° or even ⁇ 2.5 °. The adjustment of the opening angle is carried out depending on the link quality and is narrowed as much as possible, so that the beam, for example, only a width of 1 ° or 0.5 ° having.
- a further embodiment relates to a method for operating a twin transceiver with a dedicated radio interface for the so-called signaling (the control of the data transfer) and a further radio interface, which is formed for example for the mmW range.
- the method comprises the two steps of establishing the first communication connection and establishing the second communication connection, wherein data is exchanged via the first communication connection, which relate to the second communication connection to be set up.
- the second communication connection is established with the aid of at least one antenna, in which case the associated transceiver is controlled so that a directed radio signal, eg. B. a mmW radio signal is emitted.
- Another embodiment provides a wireless communication system, e.g. B. a millimeter wave communication system comprising at least two twin transceivers 10 a and 10 b, as explained in Fig. 1.
- a wireless communication system e.g. B. a millimeter wave communication system comprising at least two twin transceivers 10 a and 10 b, as explained in Fig. 1.
- Another embodiment provides a vehicle capable of realizing vehicle-to-vehicle communication or vehicle-to-infrastructure or vehicle-to-X communication equipped with a twin transceiver as discussed above , Although some aspects have been described in the context of a device, it will be understood that these aspects also constitute a description of the corresponding method, so that a block or a component of a device is also to be understood as a corresponding method step or as a feature of a method step.
- aspects described in connection with or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device.
- Some or all of the method steps may be performed by a hardware device (or using a hardware device) Hardware apparatus), such as a microprocessor, a programmable computer or an electronic circuit. In some embodiments, some or more of the most important method steps may be performed by such an apparatus.
- embodiments of the invention may be implemented in hardware or in software.
- the implementation may be performed using a digital storage medium, such as a floppy disk, a DVD, a Blu-ray Disc, a CD, a ROM, a PROM, an EPROM, an EEPROM or FLASH memory, a hard disk, or other magnetic disk or optical memory are stored on the electronically readable control signals that can cooperate with a programmable computer system or cooperate such that the respective method is performed. Therefore, the digital storage medium can be computer readable.
- a digital storage medium such as a floppy disk, a DVD, a Blu-ray Disc, a CD, a ROM, a PROM, an EPROM, an EEPROM or FLASH memory, a hard disk, or other magnetic disk or optical memory are stored on the electronically readable control signals that can cooperate with a programmable computer system or cooperate such that the respective method is performed. Therefore, the digital storage medium can be computer readable.
- some embodiments according to the invention include a data carrier having electronically readable control signals capable of interacting with a programmable computer system such that one of the methods described herein is performed.
- embodiments of the present invention may be implemented as a computer program product having a program code, wherein the program code is operable to perform one of the methods when the computer program product runs on a computer.
- the program code can also be stored, for example, on a machine-readable carrier.
- Other embodiments include the computer program for performing any of the methods described herein, wherein the computer program is stored on a machine-readable medium.
- an embodiment of the method according to the invention is thus a computer program which has a program code for performing one of the methods described herein when the computer program runs on a computer.
- a further embodiment of the method according to the invention is thus a data carrier (or a digital storage medium or a computer-readable medium) on which the Computer program for performing any of the methods described herein is excellent.
- a further exemplary embodiment of the method according to the invention is thus a data stream or a sequence of signals which represents or represents the computer program for performing one of the methods described herein.
- the data stream or the sequence of signals may be configured, for example, to be transferred via a data communication connection, for example via the Internet.
- Another embodiment includes a processing device, such as a computer or a programmable logic device, that is configured or adapted to perform one of the methods described herein.
- a processing device such as a computer or a programmable logic device
- Another embodiment includes a computer on which the computer program is installed to perform one of the methods described herein.
- Another embodiment according to the invention comprises a device or system adapted to transmit a computer program for performing at least one of the methods described herein to a receiver.
- the transmission can be done for example electronically or optically.
- the receiver may be, for example, a computer, a mobile device, a storage device or a similar device.
- the device or system may include a file server for transmitting the computer program to the recipient.
- a programmable logic device eg, a field programmable gate array, an FPGA
- a field programmable gate array may cooperate with a microprocessor to perform one of the methods described herein.
- the methods are performed by any hardware device. This may be a universal hardware such as a computer processor (CPU) or hardware specific to the process, such as an ASIC.
- CPU computer processor
- ASIC application specific integrated circuit
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17191094 | 2017-09-14 | ||
| PCT/EP2018/074445 WO2019053001A1 (de) | 2017-09-14 | 2018-09-11 | Twin-transceiver umfassend einen ersten und einen zweiten transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3682556A1 true EP3682556A1 (de) | 2020-07-22 |
Family
ID=59901379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18765900.8A Withdrawn EP3682556A1 (de) | 2017-09-14 | 2018-09-11 | Twin-transceiver umfassend einen ersten und einen zweiten transceiver |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3682556A1 (de) |
| WO (1) | WO2019053001A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE547441C2 (en) * | 2024-08-21 | 2025-09-30 | Qamcom Group AB | Antenna arrangement for sensor transceiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120093015A1 (en) * | 2007-07-23 | 2012-04-19 | Toyota Infotechnology Center Usa, Inc. | Systems and Methods for Multi-Beam Optic-Wireless Vehicle Communications |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5434137B2 (ja) * | 2009-02-26 | 2014-03-05 | ソニー株式会社 | 通信装置及び通信方法、コンピューター・プログラム、通信システム、並びに情報処理装置 |
| US9692459B2 (en) * | 2012-11-28 | 2017-06-27 | Intel Corporation | Using multiple frequency bands with beamforming assistance in a wireless network |
| DE102015114285B4 (de) * | 2015-08-27 | 2018-10-31 | Volkswagen Aktiengesellschaft | Vorrichtung, Verfahren und Computerprogramm zum Bereitstellen von Übertragungsparametern |
-
2018
- 2018-09-11 EP EP18765900.8A patent/EP3682556A1/de not_active Withdrawn
- 2018-09-11 WO PCT/EP2018/074445 patent/WO2019053001A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120093015A1 (en) * | 2007-07-23 | 2012-04-19 | Toyota Infotechnology Center Usa, Inc. | Systems and Methods for Multi-Beam Optic-Wireless Vehicle Communications |
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| Publication number | Publication date |
|---|---|
| WO2019053001A1 (de) | 2019-03-21 |
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