TWI694691B - A wireless communication device and method of beam sweeping - Google Patents

Abstract

A wireless communication device and a beam sweeping method executed by the wireless communication device, the beam sweeping method comprising: transmitting or receiving wireless signals by sweeping the beams in a non-sequential order

Description

Wireless communication equipment and beam scanning method

The invention relates to the technical field of communication, in particular to a wireless communication device and a beam scanning method.

The fifth generation (5G, fifth generation) new radio (NR, New Radio) technology is an improvement on the fourth generation (4G, fourth generation) long-term evolution (LTE, Long Term Evolution) technology. The fifth generation new radio technology is used by Higher and unlicensed spectrum bands (for example, above 30 GHz, commonly known as millimeter wave (mmWave, millimeter wave)) provide great data (transmission) speed and capacity for wireless broadband communications. Due to the huge path and penetration loss of millimeter wave wavelengths, a technique called "beamforming" is used, which plays an important role in establishing and maintaining a robust communication link.

Beamforming usually requires one or a plurality of antenna arrays, and each antenna array includes a plurality of antennas. By appropriately setting the antenna weight that defines the contribution of each antenna to the transmission or reception operation, the transmission/reception sensitivity can be shaped to a particularly high value in a specific beamforming direction. By applying different antenna weights, different beam patterns can be realized, for example, beams with different directions can be sequentially used.

During transmit (Tx) operation, beamforming can direct the signal to the receiver of interest. Likewise, during receive (Rx) operation, beamforming can provide high sensitivity when receiving signals originating from the transmitter of interest. Since the transmission power can be focused anisotropically, for example, to the solid angle of interest, when compared with the traditional approach that does not use beamforming and is more or less dependent on isotropy At the time, the anisotropic focusing method requires lower Tx power and higher received signal power, so beamforming can provide a better link budget.

However, this technology as described above faces certain challenges. For example, in the initial access phase of wireless communication, multi-beam operations are often performed to scan all beams to select an appropriate beam pair for wireless transmission and reception. Generally, beam scanning is performed by pointing directional beams in order to discover the transceiver of interest. Specifically, during the initial access phase of the 5G NR system, there is a continuous random access channel (RACH, Random Access Channel) opportunity (occasion) allocated to the next generation Node B (gNB, generation Node-B) to perform The case of beam scanning for wireless reception. FIG. 1 is a schematic diagram showing sequential assignment of consecutive RACH opportunities to gNB for Rx beam scanning. Since the 3rd Generation Partnership Project (3GPP) has reached an agreement, for carrier frequencies above 24 GHz, the ON-OFF transient period of UE (User Equipment) is 5 microseconds. As shown in Figure 1, the UE's 5 microsecond transient period may introduce significant interference to other UEs attempting to access gNB in the preceding and following RACH occasions.

Therefore, a more robust beam scanning method is desired in the art, which can mitigate interference at the beam switching boundary.

In view of this, the present invention provides a wireless communication device and a beam scanning method, which can reduce interference at the beam switching boundary.

According to a first aspect of the present invention, a beam scanning method performed by a wireless communication device is disclosed, including: transmitting or receiving wireless signals by scanning beams in a non-sequential order.

According to a second aspect of the present invention, a wireless communication device is disclosed, comprising: a controller; and a storage device operatively coupled to the controller; wherein the controller is configured to execute the program code stored in the storage device, To perform the operation including the beam scanning method as described above.

The beam scanning method provided by the present invention includes: transmitting or receiving wireless signals by scanning beams in a non-sequential order. In this way, there may be a case where the next beam may not be adjacent to the previous beam, thereby avoiding interference between adjacent beams and reducing interference at the beam switching boundary. In the present invention, the beams are scanned in a beam interleaving manner, thereby further reducing inter-symbol interference between orthogonal frequency division multiplexing.

The following description is a preferred embodiment of the present invention. The following embodiments are only used to illustrate the technical features of the present invention, and are not intended to limit the scope of the present invention. Throughout the specification and the scope of patent applications, certain words are used to refer to specific components. Those skilled in the art should understand that manufacturers may use different terms to refer to the same element. This specification and the scope of patent application do not use the difference in names as the way to distinguish the elements, but the difference in the functions of the elements as the basis for the difference. The scope of the present invention should be determined with reference to the appended patent application scope. The terms "component", "system" and "device" used in the present invention may be entities related to a computer, where the computer may be hardware, software, or a combination of hardware and software. The terms "comprising" and "including" mentioned in the following description and patent application are open-ended terms, so they should be interpreted as "including, but not limited to...". Furthermore, the term "coupled" means an indirect or direct electrical connection. Therefore, if it is described that one device is coupled to another device, it means that the device may be directly electrically connected to the other device, or indirectly electrically connected to the other device through other devices or connection means.

The detailed description of these embodiments is to enable those skilled in the art to implement these embodiments, and it should be understood that other embodiments can be used for mechanical, chemical, electrical without departing from the spirit and scope of the present invention And program changes. Therefore, the following detailed description is not limitative, and the scope of the embodiments of the present invention is limited only by the scope of the attached patent application.

The present invention will be described below with reference to specific embodiments and with reference to certain drawings, but the present invention is not limited to this, and is only limited by the scope of patent application. The drawings described are only schematic and are not limiting. In the drawings, the size of some elements may be exaggerated for illustrative purposes, rather than being drawn to scale. In the practice of the invention, the dimensions and relative dimensions do not correspond to actual dimensions.

Figure 2 is a block diagram of a wireless communication environment according to an embodiment of the present application. The wireless communication environment 100 includes a user equipment (UE) 110 and a 5G NR network 120, where the UE 110 is wirelessly connected to the 5G NR network 120 to obtain mobile services.

The UE 110 may be a feature phone, a smart phone, a panel personal computer (PC, Personal Computer), a laptop computer (laptop computer) or a 5G NR network 120 and/or wireless fidelity (Wi -Fi, Wireless-Fidelity) technology used in any wireless communication equipment that supports wireless technology (ie 5G NR technology). In particular, wireless communication devices use beamforming technology for wireless transmission and/or reception.

The 5G NR network 120 includes a Radio Access Network (RAN) 121 and a Next Generation Core Network (NG-CN) 122.

The RAN 121 is responsible for processing radio signals, terminating the radio agreement, and connecting the UE 110 with the NG-CN 122. The RAN 121 may include one or a plurality of gNBs that support a high frequency band (eg, higher than 24 GHz), and each gNB may also include one or a plurality of transmission and reception points (TRP, Transmission Reception Point), where each gNB or TRP may be called 5G cellular base station. Some gNB functions can be distributed on different TRPs, while other functions can be grouped together, leaving flexibility and scope for specific deployments to meet specific usage requirements. Specifically, each gNB or TRP may use a beamforming technique to generate one or a plurality of beams, and each beam has a different beamforming direction for wireless transmission and/or reception.

NG-CN 122 is usually composed of various network functions, including access and mobility functions (AMF, Access and Mobility Function), session management functions (SMF, Session Management Function), policy control functions (PCF, Policy Control Function), applications Function (AF, Application Function), authentication server function (AUSF, Authentication Server Function), user plane function (UPF, User Plane Function) and user data management (UDM, User Data Management), where each network function can be realized It is a network element on dedicated hardware, or is implemented as an instance of software running on dedicated hardware, or as an instance of a virtualization function on a suitable platform, such as a cloud infrastructure.

AMF provides UE-based authentication, authorization, and mobility management. SMF is responsible for session management and assigns Internet Protocol (IP, Internet Protocol) addresses to UEs. SMF also selects and controls UPF for data transmission. If the UE has multiple sessions, different SMFs can be allocated to each session to manage each session separately, and different SMFs may provide different functions in each session. The AF provides information about packet flow to the PCF in charge of policy control in order to support Quality of Service (QoS). Based on this information, the PCF determines strategies regarding mobility and session management to enable AMF and SMF to operate normally. AUSF stores information used for UE authentication, and UDM stores UE subscription information.

It should be noted that the 5G NR network 120 depicted in Figure 2 is for illustrative purposes only and is not intended to limit the scope of the present invention. The present invention can be applied to other wireless technologies. For example, the UE 110 may be a wireless communication device supporting Wi-Fi technology, and may be wirelessly connected to a Wi-Fi network, and the Wi-Fi network also supports beams for wireless transmission and/or reception to/from the UE 110 Formation technology.

FIG. 3 is a block diagram showing the UE 110 according to an embodiment of the present invention. The UE 110 includes a wireless transceiver 10, a controller 20, a storage device 30, a display device 40, and an input/output (I/O, Input/Output) device 50.

The wireless transceiver 10 is configured to perform wireless transmission to the RAN 121 (shown in FIG. 2) and wireless reception from the RAN 121 (shown in FIG. 2). Specifically, the wireless transceiver 10 includes a radio frequency (RF, Radio Frequency) device 11, a baseband processing device 12, and an antenna 13. Wherein, one or more antennas 13 may include one or more antennas for beam forming. The baseband processing device 12 is configured to perform baseband signal processing and control communication between the user identification card (not shown) and the RF device 11. The baseband processing device 12 may include a plurality of hardware components to perform baseband signal processing, including analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), gain adjustment, and modulation / Demodulation, encoding/decoding, etc. The RF device 11 can receive an RF wireless signal through the antenna 13 and convert the received RF wireless signal into a baseband signal. The baseband signal is processed by the baseband processing device 12 or receives the baseband signal from the baseband processing device 12 and converts the received RF wireless signal For the baseband signal, the baseband signal will be transmitted through the antenna 13 later. The RF device 11 may also include a plurality of hardware devices to perform radio frequency conversion. For example, the RF device 11 may include a mixer for multiplying the baseband signal with a carrier wave oscillating in the radio frequency of the supported wireless technology, where the radio frequency may be any radio frequency used for 5G NR technology or other radio frequencies (for example, for mmWave (millimeter wave) 30GHz~300GHz), depending on the wireless technology used.

To further clarify, beamforming is a signal processing technique used in the antenna array 13 or implemented by the baseband processing device 12, or a signal processing technique used for directional signal transmission/reception by a combination of the two. In beamforming, beams are formed by combining elements in a phased antenna array, so that signals at specific angles experience constructive interference, while other signals experience destructive interference. Use multiple antenna arrays to form different beams simultaneously. At the same time, the number of beams in the time/frequency domain depends on the number of antenna arrays and the radio frequency used.

The controller 20 may be a general-purpose processor, a micro control unit (MCU, Micro Control Unit), an application processor, a digital signal processor (DSP, Digital Signal Processor), an application processor (AP, Application Processor), etc., the controller 20 Including various circuits for providing data processing and calculation functions, controlling the wireless transceiver 10 to communicate wirelessly with the RAN 121, storing data (such as program code) to the storage device 30 and retrieving data (such as program code) from the storage device 30 ), transmitting a series of frame data (for example, representing text messages, graphics, images, etc.) to the display device 40, and receiving signals from the I/O device 50. In particular, the controller 20 coordinates the operations of the wireless transceiver 10, the storage device 30, the display device 40, and the I/O device 50 described above for performing the beam scanning method of the present invention.

In another embodiment, the controller 20 may be incorporated into the baseband processing device 12 to serve as a baseband processor.

The storage device 30 is a non-transitory machine-readable storage medium, including memory, such as FLASH memory or non-volatile random access memory (NVRAM, Non-Volatile Random Access Memory), Or a magnetic storage device, such as a hard disk, or a magnetic tape, or an optical disk, or any combination of instructions and/or program codes for storing the application of the present invention, communication protocols, and/or beam scanning methods.

The display device 40 may be a liquid crystal display (LCD, Liquid-Crystal Display), a light-emitting diode (LED, Light-Emitting Diode) display, or an electronic paper display (EPD, Electronic Paper Display), etc., for providing a display function. Alternatively, the display device 40 may further include one or more touch sensors disposed above or below the display device 40 for sensing the touch, contact, or proximity of an object (such as a finger or stylus).

The I/O device 50 may include one or more buttons, a keyboard, a mouse, a touch pad, a camera, a microphone, and/or a speaker, etc., to be used as a man-machine interface (MMI, Man-Machine Interface) for interaction with a user Interaction.

It should be understood that the components described in the embodiment of FIG. 3 are for illustrative purposes only, and are not intended to limit the scope of the present application. For example, the UE 110 may include more components, such as a power supply or a Global Positioning System (GPS) device, where the power supply may be a mobile/replaceable battery that provides power to all other components of the UE 110, and the GPS device The location information of the UE 110 may be provided to use some location-based services or applications.

Fig. 4 is a block diagram showing a cellular base station according to an embodiment of the present invention. The cellular base station may be a 5G cellular base station, such as gNB or TRP. The cellular base station includes a wireless transceiver 60, a controller 70, a storage device 80, and a wired interface 90. Wireless communication equipment may also include cellular base stations or 5G cellular base stations.

The wireless transceiver 60 is configured to perform wireless transmission to the UE 110 and wireless reception from the UE 110. Specifically, the wireless transceiver 60 includes an RF device 61, a baseband processing device 62, and an antenna 63, where the antenna 63 may include one or a plurality of antennas for beamforming. The functions of the RF device 61, the baseband processing device 62 and the antenna 63 may be similar to the functions of the RF device 11, the baseband processing device 12 and the antenna 13 described in the embodiment of FIG. Therefore, for the sake of brevity, the detailed description will not be repeated here.

The controller 70 may be a general-purpose processor, MCU, application processor, DSP, AP, etc. The controller 70 includes various circuits for providing data processing and calculation functions, and controls the wireless transceiver 60 for wireless communication with the UE 110, Store and retrieve data (eg, code) from storage device 80 and retrieve data (eg, code) from storage device 80, and to/from other network entities (eg, other cellular base stations in RAN 121 or NG-CN 122 via wired interface 90 Other network entities in) to send/receive messages. In particular, the controller 70 coordinates the operation of the wireless transceiver 60, the storage device 80, and the wired interface 90 as described above to perform the scanning method of the present invention.

In another embodiment, the controller 70 may be incorporated into the baseband processing device 62 to serve as a baseband processor.

As those skilled in the art will appreciate, the circuits of the controllers 20 (as shown in FIG. 3) and 70 will generally contain transistors in a manner that controls the operation of the circuit in accordance with the functions and operations described herein Configuration. As will be further understood, the specific structure or interconnection of transistors will usually be determined by a compiler (compiler), such as a register transfer language (RTL) register transfer language (RTL) compiler. The RTL compiler can be run by the processor on a script very similar to the combined language code to compile the script into a form for layout or manufacturing the final circuit. In fact, RTL is known for its role and use in promoting the design of electronic and digital systems.

The storage device 80 may be a memory, such as FLASH memory or NVRAM, or a magnetic storage device, such as a hard disk or magnetic tape, or an optical disk, or instructions and/or code for storing applications, communication protocols, and/or this application Any combination of beam scanning methods.

The wired interface 90 is responsible for providing wired communication with other network entities (such as other cellular base stations in the RAN 121 or other network entities in the NG-CN 122). The wired interface 90 may include a cable modem, an Asymmetric Digital Subscriber Line (ADSL) modem, a fiber optic modem (FOM, Fiber-Optic Modem), and/or an Ethernet network interface.

It should be understood that the components described in the embodiment of FIG. 4 are for illustrative purposes only, and are not intended to limit the scope of the present application. For example, the cellular base station may also include other functional devices, such as display devices (such as LCD, LED display or EPD, etc.), I/O devices (such as buttons, keyboard, mouse, touchpad, camera, microphone, speaker, etc.) and /Or power supply etc.

FIG. 5 is a schematic diagram showing a direction sequence of beams according to an embodiment of the present invention. As shown in Figure 5, there are 5 beams in the sequence, represented by numbers from 0 to 4, and are generated in sequence at different times. For example, beam 0 is generated in the first time interval, beam 1 is generated in the second time interval, and so on. In particular, all beams are generated with the same beam width, but the direction of the beam generated later turns counterclockwise. Note that traditionally, beam scanning is performed in the order of the direction sequence (ie, beam 0 is scanned first, then beam 1, beam 2, beam 3, and beam 4 are scanned in sequence). That is, FIG. 5 shows a schematic diagram of all beams performing beam scanning in a sequential order.

FIG. 6 is a flowchart illustrating a beam scanning method according to an embodiment of the present invention. In this embodiment, the beam scanning method may be applied to wireless communication devices, such as UE 110 (as shown in FIG. 2) or 5G cellular base stations or Wi-Fi routers, for transmission or reception operations. First, the wireless communication device performs wireless transmission or reception by scanning beams in a non-sequential sequence (step S610), and the method ends. Specifically, beams are generated in different time intervals, for example, different RACH opportunities allocated in the time domain, and the non-sequential order indicates that some or all beams do not follow the adjacent beams of these beams. In other words, unlike the traditional method, in the present invention, the beam is scanned in a beam-interleaving manner, thereby further reducing OFDM (Orthogonal Frequency Division Multiplexing) orthogonal symbols. OFDM-symbol) interference. For example, this embodiment has a first time interval and a second time interval, the first time interval and the second time interval are adjacent (that is, the next time interval of the first time interval is the second time interval , Or the next time interval of the second time interval is the first time interval), where the first beam is scanned at the first time interval and the second beam is scanned at the second time interval. At least one of the beam scanning methods in this embodiment is the case where the first beam and the second beam are not adjacent, that is, the first beam and the second beam are separated by other beams ( For example, the third beam, or the third beam and the fourth beam, etc.). Of course, the beam scanning method in the present invention does not mean that all the first beam and the second beam are not adjacent. At least one case in the present invention is that the first beam (scanned in the first time interval) and the second beam (in the first Scanning in two time intervals) are not adjacent. In the present invention, there may be another first beam and (scanning in another first time interval) another second beam (scanning in another second time interval) Adjacent, you can refer to the following description of Figure 7, Figure 8 and Figure 9 for details.

During the beam scanning process, the wireless communication device may determine whether the interference of the boundary between the current beam and the adjacent beam is greater than a predetermined threshold, and if so, it may preferably select the non-adjacent beam as the next beam. Otherwise, the adjacent beam or non-adjacent beam can be selected as the next beam. In another embodiment, the wireless communication device may separately calculate the interference of the boundary between the current beam and each of the remaining beams, and select one of the remaining beams with the smallest interference as the next beam. For example, the area of the overlapping area of each beam and other beams can be calculated, and the predetermined threshold can be set so that the area of the overlapping area is equal to 10% of the total area of the beam; that is, if the area of the overlapping area of the beam and any other beam is greater than the total beam For 10% of the area, this beam is not selected as the next beam, but the area of other overlapping areas is selected to be smaller. The predetermined threshold can also be other values, for example, the predetermined threshold can be set such that the area of the overlapping area is equal to 7%, 8%, 11%, 16%, 22%, 30%, etc. of the total beam area, which can be freely set according to needs .

In one embodiment, the wireless transmission in step S610 may refer to the UE transmitting multiple physical random access channels (PRACH, different time intervals) in different time intervals (eg, continuous time slots) using different beams in a non-sequential order Physical Random Access Channel) signal.

In another embodiment, the wireless transmission in step S610 may refer to that the UE transmits multiple sounding reference signals (SRS, Sounding Reference Signal) in different time intervals (eg, continuous time slots) using different beams in a non-sequential order ). In addition, the UE can also use different beams to transmit physical random access channel signals and sounding reference signals in different time intervals (such as continuous time slots) in a non-sequential order; that is, within the same time period, the UE can be physically random The channel signal and sounding reference signal can be selected to be transmitted or transmitted simultaneously.

In another embodiment, the wireless transmission in step S610 may refer to 5G cellular base stations (such as gNB or TRP) using different beams to transmit synchronization signal blocks (SSB) in different time intervals (such as consecutive time slots) in a non-sequential order , Synchronization Signal Block) and physical broadcast channel (PBCH, Physical Broadcast Channel) information.

In another embodiment, the wireless transmission in step S610 may refer to 5G cellular base stations (such as gNB or TRP) using different beams in a non-sequential order to transmit channel status information reference signals at different time intervals (such as consecutive time slots) (CSI-RS, Channel State Information Reference Signal). In addition, 5G cellular base stations can also use different beams in non-sequential order to transmit synchronization signal blocks at different time intervals (such as continuous time slots), and physical broadcast channel information and channel status information reference signals; that is, within the same time period, The 5G cellular base station can select one of the synchronization signal block, physical broadcast channel information and channel status information for transmission or simultaneous transmission.

In one embodiment, the wireless reception in step S610 may refer to 5G cellular base stations (such as gNB or TRP) receiving multiple PRACH signals in different time intervals (such as consecutive time slots) using different beams in a non-sequential order.

In another embodiment, the wireless reception in step S610 may refer to 5G cellular base stations (such as gNB or TRP) receiving multiple physical uplinks in different time intervals (such as consecutive time slots) using different beams in a non-sequential order Road shared channel (PUSCH, Physical Uplink Control Channel) signal.

In another embodiment, the wireless reception in step S610 may refer to 5G cellular base stations (such as gNB or TRP) receiving multiple physical uplinks in different time intervals (such as consecutive time slots) using different beams in a non-sequential order Channel control channel (PUCCH) signal. In addition, the wireless reception in step S610 may also refer to 5G cellular base stations (such as gNB or TRP) receiving multiple SRSs in different time intervals (such as consecutive time slots) using different beams in a non-sequential order.

In another embodiment, the wireless reception in step S610 may refer to 5G cellular base stations (such as gNB or TRP) using different beams in a non-sequential order to receive different types of signals at different time intervals (such as consecutive time slots) ( For example, at least two of PRACH signal, SRS, PUCCH signal and PUSCH signal). In another embodiment, the wireless reception in step S610 may refer to the wireless communication device using different beams in a non-sequential order for each symbol time interval (for example, each time the wireless communication device transmits or receives a symbol, the wireless communication device uses Different beams, and the beams are switched in a non-sequential order) to transmit or receive signals.

FIG. 7 is a block diagram illustrating beam scanning in a non-sequential order according to an embodiment of the present invention. In this embodiment, a sequence of 5 beams (represented by numbers from 0 to 4) is generated in different time intervals for wireless transmission or reception.

As shown in Fig. 7, in the first time interval, beam 0 is generated and scanned. In the second time interval, beam 2 is generated and scanned. In the third time interval, beam 4 is generated and scanned. In the fourth time interval, beam 1 is generated and scanned. Finally, in the fifth time interval, beam 3 is generated and scanned. That is, FIG. 7 is a schematic diagram of all beams performing beam scanning in a non-sequential order.

Please note that in the present invention, regardless of the direction sequence of the beam, the beam scanning is performed in a non-sequential order, that is, the beam scanning is performed in a beam interleaving manner. With the specific settings in the non-sequential order shown in Figure 7, all beams do not follow the adjacent beams of these beams. In addition, echoing the above description in Figure 6, in this embodiment, there are a first time interval and a second time interval, the first time interval and the second time interval are adjacent, in which the first time interval For the scanning of the beam, the second beam is scanned at the second time interval. In the beam scanning method of the embodiment shown in FIG. 7, the first beam (for example, beam 0 scanned in the first time interval) and the second beam (for example, beam 2 scanned in the second time interval) are not adjacent, In other words, the first beam (for example, beam 0) and the second beam (for example, beam 2) are separated by other beams (for example, beam 1); of course, specifically, beam 2 and beam 4 may not be adjacent, Beam 3 is separated; Beam 4 is not adjacent to Beam 1; Beams 2 and 3 are separated; Beam 1 is not adjacent to Beam 3; Beam 2 is separated.

FIG. 8 is a block diagram illustrating beam scanning performed in a non-sequential order according to another embodiment of the present invention. In this embodiment, a sequence of 5 beams (represented by numbers from 0 to 4) is generated in different time intervals for wireless transmission or reception.

As shown in Figure 8, during the first time interval, beam 0 is generated and scanned. In the second time interval, beam 2 is generated and scanned. In the third time interval, beam 4 is generated and scanned. In the fourth time interval, beam 3 (ie, the adjacent beam of the previous beam (beam 4)) is generated and scanned. Finally, in the fifth time interval, beam 1 is generated and scanned. That is, Figure 8 shows a schematic diagram of partial beams performing beam scanning in a non-sequential order, in which after beam 4 is generated, the next beam (ie beam 3) follows beam 4, so from beam 4 to beam 3 is Beam scanning in sequential order, while the remaining beams (eg beam 2, beam 4, beam 1) do not follow adjacent beams (eg beam 2's last beam is beam 0, beam 4's last beam is beam 2. The last beam of beam 1 is beam 3. It should be noted that the first beam of beam 0, so beam 0 does not have a previous beam in this case), that is, the remaining beams are carried out in a non-sequential order Beam scanning.

Please note that in the present invention, beam direction sequences are not taken into account, but beam scanning is performed in a non-sequential order, that is, beam scanning is performed in a beam interleaving manner. With a specific arrangement in a non-sequential order as shown in Fig. 8, some beams do not follow the adjacent beams of these beams. In addition, in this embodiment, the order of beam scanning may also be 0-2-3-4-1, 0-1-3-2-4, or other transformations. That is, the non-sequential order in this embodiment may be an adjacent beam indicating that some or all beams do not follow the corresponding beam. For example, in the embodiment of FIG. 7, all beams do not follow the adjacent beams of the corresponding beam, for example, beam 0 does not follow beam 1 (beam 1 is the adjacent beam of beam 0), and beam 1 does not follow beam 0 or 2 (beam 0 Or 2 is the adjacent beam of beam 1, similar to the other below), beam 2 does not follow beam 1 or 3, beam 3 does not follow beam 2 or 4, beam 4 does not follow beam 3. For example, in the embodiment of FIG. 8, part of the beam does not follow the adjacent beam of the corresponding beam, for example, beam 0 does not follow beam 1 (beam 1 is the adjacent beam of beam 0), and beam 1 does not follow beam 0 or 2 (beam 0 Or 2 is the adjacent beam of beam 1, similar to the other below), beam 2 does not follow beam 1 or 3, but beam 3 follows beam 4 (beam 3 follows beam 2), although beam 4 does not follow beam 3 But beam 3 is the next beam of beam 4.

In addition, in response to the above description of FIG. 6, in this embodiment, there is a first time interval and a second time interval, the first time interval and the second time interval are adjacent, wherein the first time interval One beam is scanned, and the second beam is scanned at the second time interval. In the beam scanning method of the embodiment shown in FIG. 8, the first beam (for example, beam 0 scanned in the first time interval) and the second beam (for example, beam 2 scanned in the second time interval) are not adjacent, In other words, the first beam (for example, beam 0) and the second beam (for example, beam 2) are separated by other beams (for example, beam 1); of course, specifically, beam 2 and beam 4 may not be adjacent, Is separated by beam 3; beam 3 is not adjacent to beam 1, and beam 2 is separated; however, the example shown in Figure 8 also has beam 4 (scanned in another first time interval (third time interval) The other first beam (beam 4)) is adjacent to beam 3 (another second beam (beam 3) scanned in another second time interval (fourth time interval)), so this embodiment There may be cases where the beams scanned by two adjacent time intervals are adjacent or not adjacent at the same time.

FIG. 9 is a block diagram illustrating beam scanning performed in a non-sequential order according to another embodiment of the present invention. In this embodiment, a sequence of 4 beams (represented by numbers from 0 to 3) is generated in different time intervals for wireless transmission or reception.

As shown in Fig. 9, in the first time interval, beam 0 is generated and scanned. In the second time interval, beam 2 is generated and scanned. In the third time interval, beam 1 (ie, the adjacent beam of the previous beam (beam 2)) is generated and scanned. Finally, in the fourth time interval, beam 3 is generated and scanned. Therefore, in this embodiment, all beams may not follow adjacent beams. Of course, some beams may not follow adjacent beams, and some beams may follow adjacent beams. That is, Figure 9 shows a schematic diagram of partial beams performing beam scanning in a non-sequential order, in which after beam 2 is generated, the next beam (ie beam 1) follows beam 2, so from beam 2 to beam 1 is in accordance with Beam scanning in a sequential order, while the remaining beams (for example, beam 2, beam 3) do not follow the adjacent beam (for example, the last beam of beam 2 is beam 0, the last beam of beam 3 is beam 1, need Note that the first beam of beam 0, so beam 0 has no previous beam in this case), that is, the remaining beams are scanned in a non-sequential order.

Please note that in the present invention, regardless of the direction sequence of the beam, the beam scanning is performed in a non-sequential order, that is, the beam scanning is performed in a beam interleaving manner. With a specific arrangement in a non-sequential order as shown in Fig. 9, some beams do not follow the adjacent beams of these beams. Therefore, according to the examples of FIGS. 8 and 9, at least one beam in the beam scanning in the present invention will not follow the adjacent beam of this beam. That is to say, in the present invention, the non-sequential scanning beams are used to transmit or receive wireless signals, which means that at least one beam is a non-sequential scanning beams to transmit or receive wireless signals. Of course, there may be two or more beams that transmit or receive wireless signals by scanning the beams in a non-sequential order. In addition, for example, when there are only three beams, such as the example in FIG. 8 or FIG. 9 above, when there are only beam 0, beam 1 and beam 2, the order of beam scanning may be beam 0, then beam 2, and finally the beam 1, where beam 2 does not follow beam 0, but beam 1 follows beam 2.

As described above, before or during the beam scanning, the wireless communication device may select the non-adjacent beam as the next beam, or may determine whether the interference of the boundary between the current beam and the adjacent beam is greater than a predetermined threshold. If so, it may be preferable to select non-adjacent beams as the next beam. Otherwise, the adjacent beam or non-adjacent beam can be selected as the next beam. In this embodiment, reference may be made to FIG. 10 and FIG. 11 for specific description, where FIG. 10 is a schematic diagram illustrating interference of a beam according to an embodiment of the present invention, and FIG. 11 is a diagram illustrating another embodiment according to the present invention. Schematic diagram of beam interference. As shown in FIG. 10, there is an overlapping area R01 between beam 0 and beam 1, an overlapping area R12 between beam 1 and beam 2, and an overlapping area R23 between beam 2 and beam 3. In this embodiment, the area of the overlapping area between the beam and the other beam may be used to represent the interference between the beam and the other beam. For example, the size of the interference between beam 0 and beam 1 can be measured or measured using the area of the overlapping area R01; the size of the interference between beam 1 and beam 2 can be measured or measured using the size of the area of the overlapping area R12; The size of the interference between 2 and beam 3 can be measured or measured using the size of the area of the overlapping region R23. For example, in this embodiment, when it is detected that the interference between the beam (for example, beam 2) and another beam (for example, beam 3) reaches exactly a predetermined threshold, the area of the overlapping area (for example, R23) can be calculated to obtain the corresponding The area threshold of the predetermined threshold (for example, St). In this way, if the area of the overlapping area between the beam and the other beam exceeds the area threshold St, it is considered that the interference between the beam and the other beam is greater than a predetermined threshold, then one of the two beams may not be selected Be the next beam as another. For example, when the area of the overlapping area R01 between beam 0 and beam 1 is greater than the area threshold St (that is, the interference between beam 0 and beam 1 is greater than a predetermined threshold), in the case where beam 0 is the current beam, the next The beam does not select beam 1, and beam 2 or beam 3 can be selected (for example, beam 2 can be selected in a sequential order). Of course, when the area of the overlapping region R01 between beam 0 and beam 1 is less than or equal to the area threshold (that is, the interference between beam 0 and beam 1 is less than or equal to the predetermined threshold), in the case where beam 0 is the current beam, the following One beam can select beam 1, or of course beam 2 or beam 3 (beam 0 has less interference with beam 2 or beam 3, and beam 2 can be selected in a sequential order). In this embodiment, there is no overlap between beam 0 and beam 2 or beam 3. Therefore, it can be considered that the interference between beam 0 and beam 2 or beam 3 is 0 or the interference is very small. In addition, in this embodiment, when the interference between the beam (for example, beam 2) and another beam (for example, beam 3) reaches exactly a predetermined threshold, the area of the overlapping area (for example, R23) may be calculated. The ratio to the total area of the entire beam (for example, the total area of beam 2, where the total area of beam 2 can be equal to the total area of beam 1, beam 0, and beam 3), so as to obtain the area percentage threshold corresponding to the predetermined threshold (for example Is t), the area percentage threshold t is, for example, 8%, then, for example, when the overlapping area R01 accounts for more than 8% of the total area of the entire beam 0, it is considered that the interference between beam 0 and beam 1 exceeds the predetermined threshold Therefore, when the current beam is beam 0, the next beam will not select beam 1 (or when the current beam is beam 1, the next beam will not select beam 0). Of course, when the ratio of the overlapping area R01 to the total area of the entire beam 0 is less than or equal to 8% (that is, the interference between beam 0 and beam 1 is less than or equal to a predetermined threshold), beam 1 can be selected as the next beam (of course Either beam 2 or beam 3 can be selected as the next beam). In addition, the percentage threshold t can also be, for example, 5%, 9%, 10%, 11%, 16%, 22%, 35%, etc., which can be freely set according to requirements. In this embodiment, the ratio of the overlapping area R12 between beam 1 and beam 2 in the total area of the entire beam 1 (or beam 2) may be small (for example, less than the overlapping area R01 in the entire beam 0 (or beam 1) Ratio of the total area), so the ratio of the total area of the overlapping area R12 in the entire beam 1 (or beam 2) may be less than the area percentage threshold t (for example, less than or equal to 8%), so if the current beam is beam 1, you can Select beam 2 as the next beam (if the current beam is beam 2, you can select beam 1 as the next beam); of course, you can also select beam 3 as the next beam, so that the interference is smaller. In addition, in this embodiment, when the interference between the beam (eg, beam 2) and another beam (eg, beam 3) is detected to reach a predetermined threshold, the total area of the beam (eg, beam 2 or The total area of 3 minus the area of the overlapping area (eg R23) is taken as the remaining area threshold corresponding to a predetermined threshold (eg Sn, where Sn+St can be equal to the total of beams 0, 1, 2, or 3 Area), or the remaining area percentage of the total area of the beam occupied by the remaining area (for example, the total area of beam 2 or 3) as the remaining area percentage threshold corresponding to a predetermined threshold (for example, t'). When the total area of beam 0 (or beam 1) minus the area of overlapping region R01 is less than the residual area threshold, it can be considered that the interference between beam 0 and beam 1 exceeds (or exceeds) a predetermined threshold, Therefore, when the current beam is beam 0, the next beam will not select beam 1 (or when the current beam is beam 1, the next beam will not select beam 0). Of course, when the total area of beam 0 (or beam 1) minus the area of overlapping area R01 is greater than or equal to the remaining area threshold, it can be considered that the interference between beam 0 and beam 1 does not exceed (or is less than or equal to) The threshold is predetermined, so when the current beam is beam 0, beam 1 can be selected for the next beam. In this embodiment, the interference between other beams can also be determined in a similar manner as described above (for example, whether the area of the overlapping regions R12 and R23 is greater than the area threshold, or whether the percentage is greater than the area percentage threshold, etc.), not Repeat again.

處的點P0（即線段P01P0的長度為線段P01P01’長度的1/

），之後，在P0點出作垂直于線段P01P01’的直線，並分別與波束1和波束0相交，分別得到交點P1和P2；其中交點P1和P2可以代表在線段P01P01’往兩側的信號強度的取值，例如-3dB至+3dB；因此波束0與波束1的跨度角θ1即為角度P1P01P2（也即∠P1P01P2）。波束1和波束2之間具有兩個交點P12和P12’；波束2和波束3之間具有兩個交點P23和P23’；其中交點P01，P12和P23相對交點P01’，P12’和P23’更加聚集（或相互之間更加靠近）一些。按照與上述類似的方法，以P12為起點，取線段P12P12’的1/

處的點P3，以P3點作垂直于線段P12P12’的直線，分別得到與波束2的交點P4和與波束1的交點P5；以及以P23為起點，取線段P23P23’的1/

處的點P6，以P6點作垂直于線段P23P23’的直線，分別得到與波束3的交點P7和與波束2的交點P8。因此波束1與波束2的跨度角θ2即為角度P4P12P5（也即∠P4P12P5），波束2與波束3的跨度角θ3即為角度P7P23P8（也即∠P7P23P8）。需要說明的是，上述以交點P01（或P12，P23）為起點，取線段P01P01’（或P12P12’，P23P23’）的1/

處的點P0（或P3，P6）作垂直線得到的交點P1和P2（或P4和P5，P7和P8），代表線段P01P01’往兩側的信號強度為-3dB至+3dB的取值，這僅僅是舉例說明，本領域技術人員可以瞭解到，可以以交點P01為起點，取線段P01P01’（或P12P12’，P23P23’）的其他數值（例如1/

，1/2等）處的點作垂直線得到與波束1和波束0的交點，並且這些交點代表的是其他信號強度的取值，這些可以根據實際需要或方便計算的角度自由選擇，本發明中並沒有限制。也就是說，跨度角可以是：在兩個波束相交的兩點連線形成的線段上取值得到點之後，以該點作垂直于該線段後分別與兩個波束的交點，將這兩個交點分別與兩個波束的交點（該交點是波束之間更加聚集一些的交點）連線之後形成的角度（頂角），其中在該線段上的取值（例如1/

，1/

，1/2等）可以根據需求自由設置，示例的，可以根據預設的信號強度的取值（例如-3dB至+3dB，或其他值）來確定在該線段上的取值。示例的，本實施例中波束1與波束2之間的跨度角θ2較小，也即波束1與波束2之間的干擾較小；波束2與波束3之間的跨度角θ3稍大一點，也即波束2與波束3之間的干擾稍大一些；而波束0與波束1之間的跨度角更大一些，也即波束0與波束1之間的干擾更大一些（例如比波束2與波束3之間的干擾大）。此外，本實施例中還可以使用其他的方式判定波束之間的干擾是否大於預定閾值。例如兩個波束的兩個短軸的端點的中較靠近的兩個端點形成線段的長度，例如線段P1P2的長度（即P1連線到P2後形成的線段的長度），線段P4P5的長度，線段P7P8的長度；或者線段P01P01’的長度，線段P12P12’的長度，線段P23P23’的長度等等。透過上述描述，本領域技術人員可以理解，判斷波束與另一波束之間的干擾是否大於預定閾值可以有很多種不同的實現方式，上述僅為舉例，而非對本發明的限制。In addition, in this embodiment, other methods may also be used to determine whether the interference between the beams is greater than a predetermined threshold. For example, as shown in Figure 11, when it is detected that the interference between a beam (eg, beam 2) and another beam (eg, beam 3) reaches exactly a predetermined threshold, the beam (eg, beam 2) and another beam ( For example, a span angle between beams 3), so as to obtain a span angle threshold (for example, θt) corresponding to a predetermined threshold. In this way, if the span angle between the beam and the other beam exceeds the span angle threshold θt, it is considered that the interference between the beam and the other beam is greater than a predetermined threshold, then one of the two beams may not be selected as Beam of the next one. For example, when the span angle θ1 between beam 0 and beam 1 is greater than the span angle threshold θt (that is, the interference between beam 0 and beam 1 is greater than a predetermined threshold), when beam 0 is the current beam, the next beam Beam 1 is not selected, and beam 2 or beam 3 can be selected (for example, beam 2 can be selected in a sequential order). Of course, when the span angle threshold θ1 between beam 0 and beam 1 is less than or equal to the span angle threshold θt (that is, the interference between beam 0 and beam 1 is less than or equal to a predetermined threshold), when beam 0 is the current beam, Beam 1 can be selected for the next beam, of course, beam 2 or beam 3 can also be selected (beam 0 has less interference with beam 2 or beam 3, and beam 2 can be selected in sequential order). In addition, in this embodiment, for example, when the span angle θ2 between beam 1 and beam 2 is small, for example, less than or equal to the span angle threshold θt (that is, the interference between beam 0 and beam 1 is less than or equal to a predetermined threshold), in When beam 1 is the current beam, the next beam can select beam 2 (of course, beam 3 can also be selected); or when beam 2 is the current beam, the next beam can select beam 1 (of course, it can also be selected) Beam 0). In addition, in this embodiment, the calculation method of the span angle will be specifically described. As shown in FIG. 11, there are two intersection points P01 and P01' between beam 0 and beam 1, and the intersection points P01 and P01' are connected to obtain a line segment P01P01'; then P01 is the starting point, take 1/1/ of line segment P01P01'

At point P0 (that is, the length of line segment P01P0 is 1/1/the length of line segment P01P01'

), and then make a straight line perpendicular to the line segment P01P01' at point P0, and intersect beam 1 and beam 0, respectively, to get the intersection points P1 and P2; where the intersection points P1 and P2 can represent the signal from the line segment P01P01' to both sides The value of the intensity is, for example, -3dB to +3dB; therefore, the span angle θ1 of beam 0 and beam 1 is the angle P1P01P2 (that is, ∠P1P01P2). There are two intersection points P12 and P12' between beam 1 and beam 2; two intersection points P23 and P23' between beam 2 and beam 3; where the intersection points P01, P12 and P23 are more relative to the intersection points P01', P12' and P23' Gather (or get closer to each other). According to a method similar to the above, taking P12 as the starting point, take 1/1/ of line segment P12P12'

At point P3, take P3 as a straight line perpendicular to the line segment P12P12' to obtain the intersection point P4 with beam 2 and the intersection point P5 with beam 1, respectively; and taking P23 as the starting point, take 1/1/ of line segment P23P23'

At point P6, point P6 is used as a straight line perpendicular to the line segment P23P23' to obtain the intersection point P7 with beam 3 and the intersection point P8 with beam 2, respectively. Therefore, the span angle θ2 of beam 1 and beam 2 is the angle P4P12P5 (that is, ∠P4P12P5), and the span angle θ3 of beam 2 and beam 3 is the angle P7P23P8 (that is, ∠P7P23P8). It should be noted that the above takes the intersection P01 (or P12, P23) as the starting point, and takes 1/1/ of the line segment P01P01' (or P12P12', P23P23')

The point P0 (or P3, P6) at the intersection of P1 and P2 (or P4 and P5, P7 and P8) obtained by the vertical line, represents the signal strength of the line segment P01P01' to the sides is -3dB to +3dB value, This is just an example. Those skilled in the art can understand that other values (such as 1/ 1) of the line segment P01P01' (or P12P12', P23P23') can be taken from the intersection P01 as the starting point.

, 1/2, etc.) as vertical lines to get the intersection points with beam 1 and beam 0, and these intersection points represent the values of other signal strengths, these can be freely selected according to actual needs or convenient calculation angle, the invention There are no restrictions. In other words, the span angle can be: after obtaining a point on the line segment formed by the connection of the two points where the two beams intersect, use this point as the point of intersection with the two beams after being perpendicular to the line segment. The angle (apex angle) formed after the intersection point and the intersection point of the two beams (the intersection point is the intersection point between the beams more concentrated), where the value on the line segment (such as 1/

,1/

, 1/2, etc.) can be freely set according to requirements. For example, the value on the line segment can be determined according to the preset signal strength value (for example, -3dB to +3dB, or other values). For example, in this embodiment, the span angle θ2 between beam 1 and beam 2 is small, that is, the interference between beam 1 and beam 2 is small; the span angle θ3 between beam 2 and beam 3 is slightly larger, That is, the interference between beam 2 and beam 3 is slightly greater; and the span angle between beam 0 and beam 1 is greater, that is, the interference between beam 0 and beam 1 is greater (e.g., than beam 2 and beam 1). The interference between beam 3 is large). In addition, in this embodiment, other methods may be used to determine whether the interference between the beams is greater than a predetermined threshold. For example, the ends of the two short axes of the two beams that are closer to each other form the length of the line segment, such as the length of the line segment P1P2 (that is, the length of the line segment formed after P1 is connected to P2), and the length of the line segment P4P5 , The length of line segment P7P8; or the length of line segment P01P01', the length of line segment P12P12', the length of line segment P23P23', etc. Through the above description, those skilled in the art can understand that there can be many different implementation manners to determine whether the interference between the beam and another beam is greater than a predetermined threshold. The above is only an example, not a limitation of the present invention.

In view of the foregoing embodiments, it should be understood that in the present invention, at least one of the next beam may not be adjacent to the previous beam (that is, at least one beam may be spaced between the next beam and the previous beam), so as to avoid adjacent The interference generated between the beams reduces the interference at the beam switching boundary. By configuring the beams to be scanned in a non-sequential order, the present invention advantageously reduces the interference at the beam switching boundary. Specifically, the non-sequential order indicates that some or all beams do not follow the adjacent beams of these beams. Of course, in the present invention, it can also be determined whether the next beam is the adjacent beam of the current beam by detecting whether the interference between the current beam and the adjacent beam is greater than a predetermined threshold. For example, in Figure 11, when the span angle between beam 0 and its adjacent beam 1 is greater than a predetermined threshold, in order to avoid interference between adjacent beams, non-adjacent beams should be selected as the next transmission or reception Beam. Although Figures 7 to 9 provide examples of non-sequential sequences, it should also be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. For example, beam scanning can be performed according to the direction sequence as shown in FIG. 5. That is, beam scanning can be performed by switching between different embodiments depicted in FIGS. 5 and 7 to 9.

The use of ordinal terms such as "first", "second", etc. in the scope of patent application to modify the elements of the patent scope itself does not imply any priority in the actions of the elements of the scope of patent application relative to the execution method of another. Priority or order, or chronological order. However, it is only used as a mark to distinguish one patent scope element with a specific name from another element with the same name (but used in ordinal terms) to distinguish the patent scope element.

Although the embodiments of the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made to the present invention without departing from the spirit of the present invention and the scope defined by the scope of the patent application. The described embodiments are used in all respects for illustrative purposes only and not to limit the invention. The scope of protection of the present invention shall be subject to the scope defined by the attached patent application. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention.

100‧‧‧Wireless communication environment 110‧‧‧User equipment 120‧‧‧5G NR network 121‧‧‧RAN122‧‧‧NG-CN11, 61‧‧‧RF equipment 12, 62‧‧‧ Baseband processing equipment 20, 70‧‧‧Controller 30, 80‧‧‧ storage device 40‧‧‧ display device 50‧‧‧I/O device 60‧‧‧ wireless transceiver 63‧‧‧ antenna 90‧‧‧ wired interface

The present invention can be more fully understood by reading the subsequent detailed descriptions and embodiments. This embodiment is given with reference to the drawings, where: FIG. 1 shows the sequential assignment of consecutive RACH opportunities to gNB for Rx beam scanning Schematic. Figure 2 is a block diagram of a wireless communication environment according to an embodiment of the present invention. FIG. 3 is a block diagram showing the UE 110 according to an embodiment of the present invention. FIG. 4 is a block diagram showing a cellular base station (cellular station) according to an embodiment of the present invention. FIG. 5 is a schematic diagram showing a direction sequence of beams according to an embodiment of the present invention. FIG. 6 is a flowchart illustrating a beam scanning method according to an embodiment of the present invention. FIG. 7 is a block diagram illustrating beam scanning in a non-sequential order according to an embodiment of the present invention. FIG. 8 is a block diagram illustrating beam scanning in a non-sequential order according to another embodiment of the present invention. FIG. 9 is a block diagram illustrating beam scanning in a non-sequential order according to another embodiment of the present invention. FIG. 10 is a schematic diagram illustrating interference of beams according to an embodiment of the present invention. FIG. 11 is a schematic diagram showing interference of beams according to another embodiment of the present invention.

S610‧‧‧Step

Claims (13)

A beam scanning method performed by a wireless communication device, including: transmitting or receiving wireless signals by scanning beams in a non-sequential order; including a first beam from the wireless communication device and at least one adjacent to the first beam In the second beam, when the interference between the first beam and the second beam is greater than a predetermined threshold, the non-sequential order indicates that one of the first beam and the second beam does not follow the other. The beam scanning method as described in item 1 of the patent application scope, wherein the non-sequential order indicates that some or all beams do not follow adjacent beams of the corresponding beam. The beam scanning method as described in item 1 of the patent application scope, wherein when the area of the overlapping area between the first beam and the second beam is greater than the area threshold, the interference between the first beam and the second beam Greater than a predetermined threshold. The beam scanning method as described in item 1 of the patent application, wherein when the span angle between the first beam and the second beam is greater than the span angle threshold, the interference between the first beam and the second beam is greater than The predetermined threshold. The beam scanning method as described in item 1 of the patent scope, wherein when the wireless communication device is configured as a 5G user equipment, the wireless signal transmitted includes a plurality of physical random access channel signals in different time intervals. The beam scanning method as described in item 1 of the patent application scope, wherein when the wireless communication device is configured as a 5G user equipment, the wireless signal transmitted includes a plurality of sounding reference signals in different time intervals. The beam scanning method as described in item 1 of the patent application scope, wherein when the wireless communication device is configured as a 5G cellular base station, the wireless signal transmitted includes synchronization signal blocks and physical broadcast channel information in different time intervals. The beam scanning method as described in item 1 of the patent application scope, in which the wireless communication When the device is configured as a 5G cellular base station, the wireless signal transmitted includes a plurality of channel state information reference signals in different time intervals. The beam scanning method as described in item 1 of the patent scope, wherein when the wireless communication device is configured as a 5G cellular base station, the received wireless signal includes a plurality of physical random access channel signals in different time intervals. The beam scanning method as described in item 1 of the patent scope, wherein when the wireless communication device is configured as a 5G cellular base station, the received wireless signal includes a plurality of physical uplink shared channel signals in different time intervals. The beam scanning method as described in item 1 of the patent application, wherein, when the wireless communication device is configured as a 5G cellular base station, the received wireless signal includes a plurality of physical uplink control channel signals in different time intervals . According to the beam scanning method described in item 1 of the patent application scope, when the wireless communication device is configured as a 5G cellular base station, the received wireless signal includes the received physical random access channel signal in different time intervals. The reference signal, at least two of the physical uplink control channel signal and the physical uplink shared channel signal. A wireless communication device includes: a controller; and a storage device operably coupled to the controller; wherein the controller is configured to execute the program code stored in the storage device to execute the first 1- The method of any one of the 12 items.

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