Using image processing to assist beamforming
阅读说明:本技术 使用图像处理以辅助波束成形 (Using image processing to assist beamforming ) 是由 J·H·刘 V·拉加万 厉隽怿 于 2019-01-09 设计创作,主要内容包括:本公开内容的各个方面通常涉及无线通信。在一些方面中,无线通信设备可以确定对象相对于无线通信设备的位置,其中位置是至少部分地基于处理包括对象的一个或多个图像的结果来确定的。无线通信设备可以至少部分地基于对象相对于无线通信设备的位置,来配置波束或用于标识要由无线通信设备使用的波束的波束扫描特性中的至少一者。无线通信设备可以使用波束来通信。提供许多其它方面。(Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a wireless communication device may determine a location of an object relative to the wireless communication device, where the location is determined based at least in part on a result of processing one or more images including the object. The wireless communication device may configure at least one of a beam or beam scanning characteristics for identifying a beam to be used by the wireless communication device based at least in part on a location of an object relative to the wireless communication device. The wireless communication device may communicate using the beam. Numerous other aspects are provided.)
1. A method of wireless communication performed by a wireless communication device, comprising:
determining a location of an object relative to the wireless communication device, wherein the location is determined based at least in part on a result of processing one or more images including the object;
configuring at least one of a beam or beam scanning characteristics for identifying the beam to be used by the wireless communication device based at least in part on the location of the object relative to the wireless communication device; and
communicating using the beam.
2. The method of claim 1, wherein the object is associated with a user equipment with which the wireless communication device is to communicate via the beam.
3. The method of claim 1, wherein the beam is a millimeter wave radar beam for millimeter wave radar.
4. The method of claim 3, wherein configuring at least one of the beam or the beam scanning characteristics comprises at least one of:
configuring a rate of transmission of the millimeter-wave radar beam,
configuring a width of the millimeter wave radar beam,
configuring a direction of the millimeter-wave radar beam,
configuring a signal characteristic of the millimeter wave radar beam,
configuring the signal frequency of said millimeter wave radar beam, or
Some combination thereof.
5. The method of claim 1, further comprising: signaling, to a User Equipment (UE) associated with the object, a capability of the wireless communication device to use a location of the UE to assist in beamforming.
6. The method of claim 1, further comprising: an association is determined between the object and a User Equipment (UE) with which the wireless communication device is to communicate via the beam.
7. The method of claim 6, wherein the association is determined based at least in part on at least one of:
the location of the object and a location reported by the UE;
a speed of the object and a speed reported by the UE;
an acceleration of the object and an acceleration reported by the UE;
a direction in which the object is moving and a direction reported by the UE;
a visible characteristic detected in the one or more images for the object and an indication of the visible characteristic of the object reported by the UE, or
Some combination thereof.
8. The method of claim 7, wherein the location reported by the UE comprises global positioning system data.
9. The method of claim 1, further comprising: determining an updated location associated with the object, and reconfiguring at least one of the beam or the beam scanning characteristics based at least in part on the updated location.
10. The method of claim 1, wherein the communicating comprises transmitting information to or receiving information from a User Equipment (UE) via the beam.
11. The method of claim 10, further comprising: signaling a beam configuration for the UE based at least in part on the location of the object relative to the wireless communication device.
12. The method of claim 1, wherein the location is determined based at least in part on at least one of:
global Positioning System (GPS) data received from a user device associated with the object,
a speed associated with the object is determined,
an acceleration associated with the object is determined,
the object is in the direction of movement,
a visible characteristic of said object, or
Some combination thereof.
13. The method of claim 1, wherein the object comprises at least one of:
the user equipment is provided with a display device,
a means of transportation is provided with a vehicle,
human, or
Some combination thereof.
14. The method of claim 1, wherein the one or more images are one or more frames of a video.
15. The method of claim 1, wherein the one or more images are processed by the wireless communication device, or wherein the result of processing the one or more images is received by the wireless communication device from another device that processes the one or more images.
16. The method of claim 1, wherein configuring at least one of the beam or the beam scanning characteristics comprises at least one of:
one or more of the beam parameters are modified,
the direction of the beam is modified,
modifying a rate of radar transmissions sent in the direction of the beam,
the switch-over to a different beam is made,
scanning the beam more frequently in a first direction towards the location than in a second direction not towards the location, or
Some combination thereof.
17. The method of claim 1, wherein the wireless communication device is a base station or a user equipment.
18. A wireless communication device, comprising:
a memory; and
one or more processors coupled to the memory, the memory and the one or more processors configured to:
determining a location of an object relative to the wireless communication device, wherein the location is determined based at least in part on a result of processing one or more images including the object;
configuring at least one of a beam or a beam scanning characteristic for identifying the beam to be used by the wireless communication device based at least in part on the location of the object relative to the wireless communication device; and
communicating using the beam.
19. The wireless communication device of claim 18, wherein the object is associated with a user device with which the wireless communication device is to communicate via the beam.
20. The wireless communication device of claim 18, wherein the beam is a millimeter wave radar beam for millimeter wave radar.
21. The wireless communication device of claim 20, wherein the one or more processors, when configuring at least one of the beam or the beam scanning characteristics, are configured to perform at least one of:
configuring a rate of transmission of the millimeter-wave radar beam,
configuring a width of the millimeter wave radar beam,
configuring a direction of the millimeter-wave radar beam,
configuring a signal characteristic of the millimeter wave radar beam,
configuring the signal frequency of said millimeter wave radar beam, or
Some combination thereof.
22. The wireless communication device of claim 18, wherein the one or more processors are further configured to determine an association between the object and a User Equipment (UE) with which the wireless communication device is to communicate via the beam.
23. The wireless communication device of claim 22, wherein the association is determined based at least in part on at least one of:
the location of the object and a location reported by the UE;
a speed of the object and a speed reported by the UE;
an acceleration of the object and an acceleration reported by the UE;
a direction in which the object is moving and a direction reported by the UE;
a visible characteristic detected in the one or more images for the object and an indication of the visible characteristic of the object reported by the UE, or
Some combination thereof.
24. The wireless communication device of claim 18, wherein the one or more processors, when configuring at least one of the beam or the beam scanning characteristics, are configured to perform at least one of:
one or more of the beam parameters are modified,
the direction of the beam is modified,
modifying a rate of radar transmissions sent in the direction of the beam,
the switch-over to a different beam is made,
scanning the beam more frequently in a first direction towards the location than in a second direction not towards the location, or
Some combination thereof.
25. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:
when executed by one or more processors of a wireless communication device, cause the one or more processors to perform one or more instructions to:
determining a location of an object relative to the wireless communication device, wherein the location is determined based at least in part on a result of processing one or more images including the object;
configuring at least one of a beam or a beam scanning characteristic for identifying the beam to be used by the wireless communication device based at least in part on the location of the object relative to the wireless communication device; and
communicating using the beam.
26. The non-transitory computer-readable medium of claim 25, wherein the object is associated with a user equipment with which the wireless communication device is to communicate via the beam; and
wherein the one or more instructions that cause the one or more processors to configure at least one of the beam or the beam scanning characteristics further cause the one or more processors to perform at least one of:
one or more of the beam parameters are modified,
the direction of the beam is modified,
modifying a rate of radar transmissions sent in the direction of the beam,
the switch-over to a different beam is made,
scanning the beam more frequently in a first direction towards the location than in a second direction not towards the location, or
Some combination thereof.
27. The non-transitory computer-readable medium of claim 25, wherein the beam is a millimeter wave radar beam for a millimeter wave radar; and is
Wherein the one or more instructions that cause the one or more processors to configure at least one of the beam or the beam scanning characteristics further cause the one or more processors to perform at least one of:
configuring a rate of transmission of the millimeter-wave radar beam,
configuring a width of the millimeter wave radar beam,
configuring a direction of the millimeter-wave radar beam,
configuring a signal characteristic of the millimeter wave radar beam,
configuring the signal frequency of said millimeter wave radar beam, or
Some combination thereof.
28. An apparatus for wireless communication, comprising:
means for determining a location of an object relative to the apparatus, wherein the location is determined based at least in part on a result of processing one or more images including the object;
means for configuring at least one of a beam or a beam scanning characteristic for identifying the beam to be used by the apparatus based at least in part on the location of the object relative to the apparatus; and
means for communicating using the beam.
29. The apparatus of claim 28, further comprising: means for determining an association between the object and a User Equipment (UE) with which the apparatus is to communicate via the beam.
30. The apparatus of claim 29, wherein the association is determined based at least in part on at least one of:
the location of the object and a location reported by the UE;
a speed of the object and a speed reported by the UE;
an acceleration of the object and an acceleration reported by the UE;
a direction in which the object is moving and a direction reported by the UE;
a visible characteristic detected in the one or more images for the object and an indication of the visible characteristic of the object reported by the UE, or
Some combination thereof.
Technical Field
Aspects of the present disclosure relate generally to wireless communications, and more specifically to techniques and apparatus for using image processing to assist in beamforming.
Background
Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple-access techniques capable of supporting communication with multiple users by sharing the available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access techniques include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE/LTE-advanced is an enhanced set of Universal Mobile Telecommunications System (UMTS) mobile standards promulgated by the third generation partnership project (3 GPP).
A wireless communication network may include several Base Stations (BSs) capable of supporting communication for several User Equipments (UEs). A User Equipment (UE) may communicate with a Base Station (BS) via a downlink as well as an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in greater detail herein, the BS may be referred to as a node B, gNB, an Access Point (AP), a radio head, a Transmit Receive Point (TRP), a New Radio (NR) BS, a 5G node B, etc.
The above multiple access techniques have been adopted in various telecommunications standards to provide a common protocol that enables different user equipment to communicate at a municipal, national, regional, or even global level. The New Radio (NR), which may also be referred to as 5G, is an enhanced set of LTE mobile standards promulgated by the third generation partnership project (3 GPP). NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the Downlink (DL), CP-OFDM and/or SC-FDM (also known as discrete fourier transform spread OFDM (DFT-s-OFDM), for example) on the Uplink (UL), and supporting beamforming, Multiple Input Multiple Output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements in LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access techniques and telecommunications standards employing these techniques.
Disclosure of Invention
In some aspects, a method of wireless communication performed by a wireless communication device may comprise: determining a location of the object relative to the wireless communication device, wherein the location is determined based at least in part on a result of processing one or more images including the object; configuring at least one of a beam or beam scanning characteristics for identifying a beam to be used by a wireless communication device based at least in part on a location of an object relative to the wireless communication device; and communicating using the beam.
In some aspects, a wireless communication device for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: determining a location of the object relative to the wireless communication device, wherein the location is determined based at least in part on a result of processing one or more images including the object; configuring at least one of a beam or beam scanning characteristics for identifying a beam to be used by a wireless communication device based at least in part on a location of an object relative to the wireless communication device; and communicating using the beam.
In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by the one or more processors of the wireless communication device, may cause the one or more processors to determine a location of the object relative to the wireless communication device, wherein the location is determined based at least in part on a result of processing one or more images including the object; configuring at least one of a beam or beam scanning characteristics for identifying a beam to be used by a wireless communication device based at least in part on a location of an object relative to the wireless communication device; and communicating using the beam.
In some aspects, an apparatus for wireless communication may comprise: means for determining a location of an object relative to an apparatus, wherein the location is determined based at least in part on a result of processing one or more images including the object; means for configuring at least one of a beam or beam scanning characteristics for identifying a beam to be used by an apparatus based at least in part on a location of an object relative to the apparatus; and means for communicating using the beam.
Aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and processing systems substantially as described with reference to and as illustrated by the accompanying drawings and description.
The foregoing has outlined rather broadly the features and technical advantages of an example in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, both as to their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purpose of illustration and description and is not intended as a definition of the limits of the claims.
Drawings
So that the manner in which the above recited features of the present disclosure can be understood in detail, a more particular description of the disclosure, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.
Fig. 1 is a block diagram conceptually illustrating an example of a wireless communication network, in accordance with various aspects of the present disclosure.
Fig. 2 is a block diagram conceptually illustrating an example of a base station communicating with a User Equipment (UE) in a wireless communication network, in accordance with various aspects of the present disclosure.
Fig. 3A is a block diagram conceptually illustrating an example of a frame structure in a wireless communication network, in accordance with various aspects of the present disclosure.
Fig. 3B is a block diagram conceptually illustrating an example synchronous communication hierarchy in a wireless communication network, in accordance with various aspects of the present disclosure.
Fig. 4 is a block diagram conceptually illustrating an example subframe format with a normal cyclic prefix in a wireless communication network, in accordance with various aspects of the present disclosure.
Fig. 5 is a schematic diagram illustrating an example of wireless communication via one or more beams in accordance with various aspects of the present disclosure.
Fig. 6-9 are schematic diagrams illustrating examples of using image processing to assist in beamforming in accordance with various aspects of the present disclosure.
Fig. 10 is a schematic diagram illustrating an example process performed, for example, by a wireless communication device, in accordance with various aspects of the present disclosure.
Detailed Description
Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein one skilled in the art should appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the present disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the present disclosure is intended to cover such apparatus or methods, which are practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.
Several aspects of a telecommunications system will be presented with reference to various apparatus and techniques. These means and techniques are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, procedures, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
It should be noted that although aspects may be described herein using terms commonly associated with 3G and/or 4G wireless technologies, aspects of the present disclosure may be applied in other generation-based communication systems, such as 5G and beyond, including NR technologies.
Fig. 1 is a schematic diagram illustrating a
A BS may provide communication coverage for a macrocell, a picocell, a femtocell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence), and may allow restricted access by UEs having an association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG)). The BS for the macro cell may be referred to as a macro BS. The BS for the pico cell may be referred to as a pico BS. The BS for the femto cell may be referred to as a femto BS or a home BS. In the example shown in fig. 1,
In some aspects, the cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of the mobile BS. In some aspects, BSs may be interconnected in the
The
UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout
Some UEs may be considered Machine Type Communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, a robot, drone, remote device, sensor, meter, monitor, location tag, etc., that may communicate with a base station, another device (e.g., remote device), or some other entity. A wireless node may provide connectivity to or from a network (e.g., a wide area network such as the internet or a cellular network), for example, via a wired or wireless communication link. Some UEs may be considered internet of things (IoT) devices and/or may be implemented as NB-IoT (narrowband internet of things) devices. Some UEs may be considered Customer Premises Equipment (CPE). UE120 may be included within a housing that houses components of UE120, such as a processor component, a memory component, and the like.
In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. Frequencies may also be referred to as carriers, frequency channels, and the like. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.
In some aspects, two or more UEs 120 (e.g., shown as UE120 a and UE120 e) may communicate directly using one or more sidelink (sidelink) channels (e.g., without using
In some aspects,
As indicated above, fig. 1 is provided by way of example only. Other examples may be different than that described with respect to fig. 1.
Fig. 2 shows a block diagram of a design 220 of
At
At UE120, antennas 252a through 252r may receive downlink signals from
On the uplink, at UE120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller/processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, CQI, etc.). Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to
In some aspects, one or more components of UE120 may be included in a housing. Controller/processor 240 of
In some aspects,
As indicated above, fig. 2 is provided as an example only. Other examples may be different than that described with respect to fig. 2.
Fig. 3A shows an
Although some techniques are described herein in connection with frames, subframes, slots, etc., these techniques may be equally applied to other types of wireless communication structures that may be referred to in 5G NR using terms other than "frame," "subframe," "slot," etc. In some aspects, a wireless communication structure may refer to a periodic, sometimes limited, communication unit defined by a wireless communication standard and/or protocol. Additionally or alternatively, configurations of wireless communication structures other than those shown in fig. 3A may be used.
In some telecommunications (e.g., NR), a base station may transmit a synchronization signal. For example, a base station may transmit a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), etc., on a downlink for each cell supported by the base station. The UE may use PSS and SSS for cell search and acquisition. For example, a UE may use PSS to determine symbol timing and SSS to determine a physical cell identifier and frame timing associated with a base station. The base station may also transmit a Physical Broadcast Channel (PBCH). The PBCH may carry some system information, such as system information supporting initial access by the UE.
In some aspects, a base station may transmit a PSS, a SSs, and/or a PBCH according to a synchronization communication hierarchy (e.g., Synchronization Signal (SS) hierarchy) including a plurality of synchronization communications (e.g., SS blocks), as described below in connection with fig. 3B.
Fig. 3B is a block diagram conceptually illustrating an example SS hierarchy, which is an example of a synchronous communication hierarchy. As shown in fig. 3B, the SS tier may include a set of SS bursts, which may include a plurality of SS bursts (identified as SS burst 0 through SS burst B-1, where B is the maximum number of repetitions of an SS burst that may be sent by a base station). As further shown, each SS burst may include one or more SS blocks (identified as
The set of SS bursts shown in fig. 3B is an example of a set of synchronous communications, and other sets of synchronous communications may be used in conjunction with the techniques described herein. Further, the SS blocks shown in fig. 3B are examples of synchronous communications, and other synchronous communications may be used in conjunction with the techniques described herein.
In some aspects, SS blocks include resources that carry a PSS, SSs, PBCH, and/or other synchronization signals (e.g., a Third Synchronization Signal (TSS)) and/or synchronization channels. In some aspects, multiple SS blocks are included in an SS burst, and the PSS, SSs, and/or PBCH may be the same across each SS block in the SS burst. In some aspects, a single SS block may be included in an SS burst. In some aspects, an SS block may be at least four symbol periods in length, with each symbol carrying one or more of PSS (e.g., occupying one symbol), SSs (e.g., occupying one symbol), and/or PBCH (e.g., occupying two symbols).
In some aspects, the symbols of the SS blocks are consecutive, as shown in fig. 3B. In some aspects, the symbols of the SS block are discontinuous. Similarly, in some aspects, one or more SS blocks in an SS burst may be transmitted in consecutive radio resources (e.g., consecutive symbol periods) during one or more subframes. Additionally or alternatively, one or more SS blocks in an SS burst may be transmitted in discontinuous radio resources.
In some aspects, an SS burst may have a burst period, whereby SS blocks in the SS burst are transmitted by a base station according to the burst period. That is, the SS blocks may be repeated during each SS burst. In some aspects, the set of SS bursts may have a burst set periodicity, whereby SS bursts in the set of SS bursts are transmitted by the base station according to a fixed burst set periodicity. That is, the SS bursts may be repeated during each set of SS bursts.
The base station may transmit system messages, such as system message blocks (SIBs), on the Physical Downlink Shared Channel (PDSCH) in certain subframes. The base station may send control information/data on a Physical Downlink Control Channel (PDCCH) in C symbol periods of a subframe, where B may be configurable for each subframe. The base station may transmit traffic data and/or other data on the PDSCH in the remaining symbol periods of each subframe.
As indicated above, fig. 3A and 3B are provided as examples. Other examples may be different than that described with respect to fig. 3A and 3B.
Fig. 4 shows an example subframe format 410 with a normal cyclic prefix. The available time-frequency resources may be divided into resource blocks. Each resource block may cover a set of subcarriers (e.g., 12 subcarriers) in one slot and may include several resource elements. Each resource element may cover one subcarrier in one symbol period (e.g., in time) and may be used to transmit one modulation symbol, which may be real or complex valued. In some aspects, subframe format 410 may be used for transmission of SS blocks carrying PSS, SSs, PBCH, etc., as described herein.
In some telecommunication systems (e.g., NR), an interleaving structure may be used for each of the downlink and uplink for FDD. For example, Q interlaces may be defined with indices of 0 through Q-1, where Q may be equal to 4, 6, 8, 10, or some other value. Each interlace may include subframes spaced apart by Q frames. In particular, interlace Q may include subframes Q, Q + Q, Q +2Q, etc., where Q ∈ {0, …, Q-1 }.
The UE may be located within the coverage of multiple BSs. One of the BSs may be selected to serve the UE. The serving BS may be selected based at least in part on various criteria such as received signal strength, received signal quality, path loss, and the like. The received signal quality may be quantified by a signal-to-interference-plus-noise ratio (SNIR), or a Reference Signal Received Quality (RSRQ), or some other metric. The UE may operate in a dominant interference scenario, in which the UE may observe high interference from one or more interfering BSs.
Although aspects of the examples described herein may be associated with NR or 5G technologies, aspects of the disclosure may be applicable to other wireless communication systems. A New Radio (NR) may refer to a radio configured to operate according to a new air interface (e.g., different from an Orthogonal Frequency Division Multiple Access (OFDMA) -based air interface) or a fixed transport layer (e.g., different from an Internet Protocol (IP)). In aspects, NR may utilize OFDM with CP (referred to herein as cyclic prefix OFDM or CP-OFDM) and/or SC-FDM on the uplink, CP-OFDM on the downlink, and support for half-duplex operation using TDD. In aspects, the NR may utilize OFDM with CP on the uplink (referred to herein as CP-OFDM) and/or discrete fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM), for example, may utilize CP-OFDM on the downlink and include support for half-duplex operation using TDD. NR may include enhanced mobile broadband (eMBB) services targeting wide bandwidths (e.g., 80 megahertz (MHz) and above), millimeter waves (mmW) targeting high carrier frequencies (e.g., 60 gigahertz (GHz)), massive MTC (MTC) targeting non-backward compatible MTC technologies, and/or mission critical targeting ultra-reliable low-latency communication (URLLC) services.
In some aspects, a single component carrier bandwidth of 100MHz may be supported. The NR resource blocks may span 12 subcarriers having a subcarrier bandwidth of 60 or 120 kilohertz (kHz) in a 0.1 millisecond (ms) duration. Each radio frame may include 40 subframes having a length of 10 ms. Thus, each subframe may have a length of 0.25 ms. Each subframe may indicate a link direction (e.g., DL or UL) for data transmission, and the link direction for each subframe may be dynamically switched. Each subframe may include DL/UL data as well as DL/UL control data.
Beamforming may be supported and the beam directions may be dynamically configured. MIMO transmission with precoding may also be supported. MIMO configuration in DL may support up to 8 transmit antennas with multi-layer DL transmission of up to 8 streams and up to 2 streams per UE. Multi-layer transmission with up to 2 streams per UE may be supported. With up to 8 serving cells, aggregation of multiple cells may be supported. Alternatively, the NR may support a different air interface than an OFDM based interface. The NR network may comprise such entities of a central unit or distributed units.
As indicated above, fig. 4 is provided as an example. Other examples may be different than that described with respect to fig. 4.
Fig. 5 is a schematic diagram illustrating an example 500 of wireless communication via one or more beams in accordance with various aspects of the disclosure.
As shown in fig. 5, a first apparatus 505 (e.g., shown as UE120 in example 500, but the first apparatus may be a base station 110) may communicate with a second apparatus 510 (e.g., shown as a base station in example 500, but the second apparatus may be a UE 120) using one or more beams (e.g., which operate in a millimeter wave radio frequency band). The first apparatus 505 and/or the second apparatus 510 may comprise one or more wireless communication devices, such as a
In some aspects, the first apparatus 505 and the second apparatus 510 may communicate using an active beam 515. In some aspects, the first apparatus 505 and the second apparatus 510 may also be capable of communicating via one or more candidate beams 520. In some aspects, the active beam 515 may be selected from the set of candidate beams 520 by comparing beam parameters (e.g., RSRP, RSRQ, RSSI, etc.) of the set of candidate beams 520, which may be determined by performing a beam sweep to determine beam parameters of a plurality of beams. For example, the active beam 515 may be the beam having the best beam parameters among all the beams in the set of candidate beams 520 scanned during the beam sweep.
However, determining an active beam 515 for communication (e.g., in a particular direction) may be a time-consuming and power-intensive process that consumes significant device resources (e.g., memory resources, processing resources, antenna resources, etc.) and network resources (e.g., air time resources, frequency resources, etc.). For example, the
As indicated above, fig. 5 is provided as an example. Other examples may be different than that described with respect to fig. 5.
Fig. 6 is a schematic diagram illustrating an example 600 of using image processing to assist in beamforming in accordance with various aspects of the present disclosure. Example 600 is an example of a
As shown in fig. 6,
As shown by
In some aspects, the object may be associated with a UE120 with which the
As shown by
Additionally or alternatively,
As shown by
As shown by
In some aspects, the
In some aspects,
In some aspects,
In some aspects,
In some aspects,
As indicated above, fig. 6 is provided as an example. Other examples may be different than that described with respect to fig. 6.
Fig. 7 is a schematic diagram illustrating an example 700 of using image processing to assist in beamforming in accordance with various aspects of the present disclosure. Example 700 is an example of a
As shown in fig. 7,
As shown by reference numeral 710, the
In some aspects, the
As shown by reference numeral 715, the
As shown by reference number 720, the
In some aspects, the
As indicated above, fig. 7 is provided as an example. Other examples may be different than described with respect to fig. 7.
Fig. 8 is a schematic diagram illustrating an example 800 of using image processing to assist in beamforming in accordance with various aspects of the present disclosure. Example 800 is an example of a first UE120 using image processing to assist in beamforming a beam to be used for communicating with a
As shown in fig. 8, a first UE120 may communicate with one or more
As shown by reference numeral 820, the first UE120 may determine the location of the object relative to the first UE120, in a similar manner as described above in connection with fig. 6. In some aspects (e.g., when the first UE120 includes the image processor 810), the first UE120 may determine the location based at least in part on a result of performing image processing on the one or more images 815 to determine image processing. In some aspects (e.g., when first UE120 does not include image processor 810), first UE120 may determine the location based at least in part on receiving results of the image processing from another device (e.g., a device that includes image processor 810). In some aspects, the object may be associated with a second UE120 with which the first UE120 is to communicate. For example, the object may include a vehicle, a person, the second UE120, etc., as described above in connection with fig. 6. In example 800, the object is a vehicle, but other types of objects are possible.
In some aspects, first UE120 may signal to second UE120 the ability of first UE120 to use the location of second UE120 to assist in beamforming, in a similar manner as described above in connection with fig. 6. Additionally or alternatively, first UE120 may request tracking information associated with second UE120 from second UE120 to assist in determining the location of second UE120 from image 815, in a similar manner as described above in connection with fig. 6. In some aspects, the second UE120 may transmit and the first UE120 may receive the tracking information in a similar manner as described above in connection with fig. 6.
As shown by reference numeral 825, the first UE120 may configure at least one of a beam or beam scanning characteristic based at least in part on a location of an object relative to the first UE120, in a similar manner as described above in connection with fig. 6. Additionally or alternatively, first UE120 may signal to second UE120 a beam configuration to be used by second UE120 to communicate with first UE120, in a similar manner as described above in connection with fig. 6.
The first UE120 may communicate using beams in a similar manner as described above in connection with fig. 6. By using image processing to determine a location of an object associated with second UE120, and using the location to assist in beamforming, first UE120 and second UE120 may quickly establish communication via a beam, speed, quality, and/or reliability of communication may be improved, device resources (e.g., of first UE120 and/or second UE 120) associated with beamforming may be conserved, and/or the like.
In some aspects, the first UE120 may reconfigure the beam and/or beam scanning characteristics in a similar manner as described above in connection with fig. 6. In this way, the first UE120 may efficiently configure the beam to maintain the connection with the
As indicated above, fig. 8 is provided as an example. Other examples may be different than that described with respect to fig. 8.
Fig. 9 is a schematic diagram illustrating an example 900 of using image processing to assist in beamforming in accordance with various aspects of the present disclosure. Example 900 is an example of UE120 using image processing to assist in beamforming a beam to be used for millimeter wave radar.
As shown in fig. 9, UE120 may use millimeter wave radar to detect one or more objects (e.g., for collision avoidance, driving control, etc.). As further shown, the UE120 may be in communication with the camera 805 and/or an image processor 810, the image processor 810 capturing and/or analyzing one or more images 905, in a similar manner as described above in connection with fig. 6-8.
As shown by reference number 910, UE120 may determine the location of the object relative to UE120 in a similar manner as described above in connection with fig. 6-8. In some aspects, the object may include a vehicle, a person, an animal, a stationary object (e.g., a building, a traffic sign, a traffic signal, etc.), and the like. In example 900, the object is a person, but other types of objects are possible.
As shown by reference numeral 915, UE120 can configure at least one of a beam or beam scanning characteristic based at least in part on a location of an object relative to
In this case, the UE120 may configure the beam and/or beam scanning characteristics by configuring a rate of transmission of the millimeter wave radar beam. For example, UE120 may configure millimeter wave radar beam transmissions to occur more frequently in one or more directions toward the location of the object and/or may configure millimeter wave radar beam transmissions to occur less frequently in one or more directions away from the location of the object. In this way, the UE120 may respond to the object faster (e.g., for collision avoidance).
Additionally or alternatively, UE120 may configure the beam and/or beam scanning characteristics by configuring a width of the millimeter wave radar beam. For example, UE120 may configure a narrower millimeter wave radar beam in one or more directions toward the location of the object and/or may configure a wider millimeter wave radar beam in one or more directions not toward the location of the object. In this way, UE120 may obtain more accurate radar images in the location of interest (e.g., for collision avoidance).
Additionally or alternatively, UE120 may configure the beam and/or beam scanning characteristics by configuring the direction of the millimeter wave radar beam. For example, UE120 may configure transmission of millimeter wave radar beams in one or more directions toward the location of the object and/or may not configure transmission of millimeter wave radar beams in one or more directions not toward the location of the object. In this way, UE120 may focus the millimeter wave radar beam toward a direction of interest (e.g., for collision avoidance). Furthermore, by configuring millimeter wave radar beams in fewer than omni-directional directions, resources of UE120 (e.g., processor resources, memory resources, battery power, etc.) may be conserved.
Additionally or alternatively, UE120 may configure the beam and/or beam scanning characteristics by configuring signal characteristics and/or signal frequencies of the millimeter wave radar beam. For example, the UE120 may configure millimeter wave radar beams having different frequencies for different types of objects (e.g., a first frequency for people, a second frequency for cars, a third frequency for trucks, etc.), which may result in better radar imaging. Additionally or alternatively, the UE120 may configure millimeter wave radar beams having different phases, different amplitudes, etc. for different types of objects, which may result in better radar imaging.
UE120 may communicate using the millimeter-wave radar beam, such as by transmitting one or more millimeter-wave signals via the millimeter-wave radar beam and monitoring for return signals. By using image processing to determine the location of the object and using the location to assist in beamforming and/or transmission of millimeter wave radar beams, UE120 may improve the speed, quality, and/or reliability of millimeter wave radar, may conserve device resources (e.g., of UE 120) associated with beamforming and/or transmitting millimeter wave radar beams, may improve collision avoidance, and/or the like.
As indicated above, fig. 9 is provided as an example. Other examples may be different than that described with respect to fig. 9.
Fig. 10 is a schematic diagram illustrating an
As shown in fig. 10, in some aspects,
As further illustrated in fig. 10, in some
As further illustrated in fig. 10, in some
In some aspects, the object is associated with a user device with which the wireless communication device is to communicate via the beam. In some aspects, the beam is associated with a millimeter wave radar beam for millimeter wave radar. In some aspects, configuring at least one of the beam or beam scanning characteristics comprises at least one of: a rate of transmission of the millimeter-wave radar beam is configured, a width of the millimeter-wave radar beam is configured, a direction of the millimeter-wave radar beam is configured, a signal characteristic of the millimeter-wave radar beam is configured, a signal frequency of the millimeter-wave radar beam is configured, or some combination thereof.
In some aspects, a wireless communication device may signal to a User Equipment (UE) associated with an object a capability of the wireless communication device to use a location of the UE to assist in beamforming. In some aspects, a wireless communication device may determine an association between an object and a user device with which the wireless communication device will communicate via a beam. In some aspects, the association is determined based at least in part on at least one of: the location of the object and the location reported by the UE, the velocity of the object and the velocity reported by the UE, the acceleration of the object and the acceleration reported by the UE, the direction of movement of the object and the direction reported by the UE, a visible characteristic detected for the object in one or more images and an indication of the visible characteristic of the object reported by the UE, or some combination thereof. In some aspects, the location reported by the UE includes global positioning system data.
In some aspects, the wireless communication device may determine an updated location associated with the object and reconfigure at least one of the beam or beam scanning characteristics based at least in part on the updated location. In some aspects, using a beam for communication includes transmitting information to or receiving information from a User Equipment (UE) via the beam. In some aspects, a wireless communication device may signal a beam configuration for a UE based at least in part on a location of an object relative to the wireless communication device.
In some aspects, the location is determined based at least in part on at least one of: global Positioning System (GPS) data received from a user device associated with the object, a velocity associated with the object, an acceleration associated with the object, a direction in which the object is moving, a visible characteristic of the object, or some combination thereof. In some aspects, the object comprises at least one of: a user device, a vehicle, a person, or some combination thereof.
In some aspects, the one or more images are one or more frames of a video. In some aspects, one or more images are processed by a wireless communication device. In some aspects, the results of processing the one or more images are received by the wireless communication device from another device that processes the one or more images.
In some aspects, configuring at least one of the beam or beam scanning characteristics comprises at least one of: modifying one or more beam parameters, modifying a direction of a beam, modifying a rate of radar transmissions sent in the direction of a beam, switching to a different beam, or some combination thereof. In some aspects, configuring at least one of a beam or beam scanning characteristic comprises: the beam is scanned more frequently in a first direction toward the location than in a second direction not toward the location.
In some aspects, the wireless communication device is a base station. In some aspects, the wireless communication device is a user equipment.
Although fig. 10 shows example blocks of the
The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit aspects to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of various aspects.
As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and/or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and/or a combination of hardware and software.
Some aspects are described herein in connection with a threshold. As used herein, satisfying a threshold may refer to a value that is greater than the threshold, greater than or equal to the threshold, less than or equal to the threshold, not equal to the threshold, and the like.
It will be apparent that the systems and/or methods described herein may be implemented in various forms of hardware, firmware, or a combination of hardware and software. The actual specialized control hardware or software code used to implement the systems and/or methods is not limited in all respects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to the specific software code-it being understood that software and hardware may be designed to implement the systems and/or methods based, at least in part, on the description herein.
Although particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of possible aspects. Indeed, many of these features may be combined in ways not explicitly recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of possible aspects includes each dependent claim in combination with all other claims in the set of claims. A phrase referring to "at least one of a list of items" refers to any combination of these items, including a single member. By way of example, "at least one of a, b, or c" is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination of multiples of the same element (e.g., a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b-b, b-b-c, c-c, and c-c-c, or any other permutation of a, b, and c).
No element, act, or instruction used herein should be construed as critical or essential to the invention unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with "one or more. Where only one item is intended, the term "only one" or similar language is used. Further, as used herein, the terms "having", "containing", and the like are intended to be open-ended terms. Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise.
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