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WO2021016771A1 - Procédé et dispositif de commutation de mode de détection de canal, et support d'informations - Google Patents

Procédé et dispositif de commutation de mode de détection de canal, et support d'informations Download PDF

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Publication number
WO2021016771A1
WO2021016771A1 PCT/CN2019/098036 CN2019098036W WO2021016771A1 WO 2021016771 A1 WO2021016771 A1 WO 2021016771A1 CN 2019098036 W CN2019098036 W CN 2019098036W WO 2021016771 A1 WO2021016771 A1 WO 2021016771A1
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WO
WIPO (PCT)
Prior art keywords
channel detection
based channel
broadband
subband
unlicensed carrier
Prior art date
Application number
PCT/CN2019/098036
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English (en)
Chinese (zh)
Inventor
朱亚军
Original Assignee
北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201980001558.2A priority Critical patent/CN110546899B/zh
Priority to PCT/CN2019/098036 priority patent/WO2021016771A1/fr
Publication of WO2021016771A1 publication Critical patent/WO2021016771A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of wireless communication technology, but is not limited to the field of wireless communication technology, and in particular to a method, device and storage medium for switching channel detection modes.
  • eMBB enhanced mobile broadband
  • uRLLC ultra-reliable, low-latency communication
  • mMTC Mass Machine Communication
  • embodiments of the present disclosure provide a channel detection method switching method, device, and storage medium.
  • a channel detection mode switching method wherein the method includes:
  • the selection basis information perform broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier, wherein the bandwidth of the broadband is greater than the bandwidth of the sub-band.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:
  • the broadband-based channel detection or the subband-based channel detection of the first system is performed on the unlicensed carrier.
  • the channel detection includes one of the following:
  • the signal strength of the second system measured by the first system is less than the first strength threshold, perform the broadband-based channel detection of the first system on the unlicensed carrier;
  • the subband-based channel detection of the first system is performed on the unlicensed carrier.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:
  • the broadband-based channel detection or the subband-based channel detection is performed on the unlicensed carrier.
  • the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal includes one of the following:
  • the predetermined signal is the first signal, performing the broadband-based channel detection on the unlicensed carrier;
  • the transmission resource location of the predetermined signal is the first resource location, performing the broadband-based channel detection on the unlicensed carrier;
  • the broadband-based channel detection is performed on the unlicensed carrier.
  • the performing the subband-based channel detection on the unlicensed carrier according to a predetermined signal further includes one of the following:
  • the predetermined signal is the second signal, perform the subband-based channel detection on the unlicensed carrier;
  • the transmission resource location of the predetermined signal is the second resource location, performing the subband-based channel detection on the unlicensed carrier;
  • the subband-based channel detection is performed on the unlicensed carrier.
  • the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal includes one of the following:
  • the currently applied bandwidth-based channel detection is switched to the subband-based channel detection, or the currently applied sub-width-based channel detection Switching to perform the broadband-based channel detection;
  • the predetermined signal is the third signal, switch the currently applied bandwidth-based channel detection to the subband-based channel detection, or switch the currently applied sub-width-based channel detection to perform The wideband-based channel detection;
  • the currently applied bandwidth-based channel detection is switched to the subband-based channel detection, or the currently applied sub-width-based channel detection The channel detection is switched to perform the broadband-based channel detection.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:
  • the received indication signaling perform broadband-based channel detection or subband-based channel detection on the unlicensed carrier.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the received indication signaling includes one of the following:
  • the indication signaling When the indication signaling carries a subband-based measurement indication, perform the subband-based channel detection on the unlicensed carrier;
  • the indication signaling When the indication signaling carries a broadband-based measurement instruction, perform the broadband-based channel detection on the unlicensed carrier.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:
  • the indication signaling When the indication signaling carries the second handover measurement information, switch the currently applied bandwidth-based channel detection to the subband-based channel detection, or switch the currently applied sub-width-based channel detection
  • the detection switching is to perform the broadband-based channel detection.
  • performing broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information includes:
  • the broadband-based channel detection or the subband-based channel detection is performed on the unlicensed carrier.
  • a channel detection mode switching device wherein the device includes:
  • the switching module is configured to perform broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information, wherein the bandwidth of the broadband is greater than the bandwidth of the sub-band.
  • the switching module includes:
  • the first handover sub-module is configured to perform, on the unlicensed carrier, the first system's broadband-based channel detection or subband-based channel detection based on the signal strength measurement result of the second system of the unlicensed carrier by the first system Channel detection.
  • the first handover submodule includes one of the following:
  • the first switching unit is configured to perform the broadband-based channel detection of the first system on the unlicensed carrier when the signal strength of the second system measured by the first system is less than a first strength threshold ;
  • the second switching unit is configured to perform the subband-based channel of the first system on the unlicensed carrier when the signal strength of the second system measured by the first system is greater than a second strength threshold. Detection.
  • the switching module includes:
  • the second switching submodule is configured to perform the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal.
  • the second handover submodule includes one of the following:
  • the third switching unit is configured to perform the broadband-based channel detection on the unlicensed carrier when the predetermined signal is the first signal;
  • a fourth switching unit configured to perform the broadband-based channel detection on the unlicensed carrier when the transmission resource location of the predetermined signal is the first resource location;
  • the fifth switching unit is configured to perform the broadband-based channel detection on the unlicensed carrier when the predetermined signal carries a broadband-based measurement instruction.
  • the second handover submodule includes one of the following:
  • a sixth switching unit configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal is a second signal
  • the seventh switching unit is configured to perform the subband-based channel detection on the unlicensed carrier when the transmission resource location of the predetermined signal is the second resource location;
  • the eighth switching unit is configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal carries a subband-based measurement instruction.
  • the second handover submodule includes one of the following:
  • the ninth switching unit is configured to switch the currently applied bandwidth-based channel detection to the subband-based channel detection when the predetermined signal carries the first switching measurement information, or to switch the current applied channel detection Switching the sub-width-based channel detection to perform the wide-band-based channel detection;
  • the tenth switching unit is configured to, when the predetermined signal is a third signal, switch the currently applied bandwidth-based channel detection to the subband-based channel detection, or switch the currently applied subband-based channel detection
  • the wide channel detection is switched to perform the wideband-based channel detection
  • the eleventh switching unit is configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection when the transmission resource location of the predetermined signal is the third resource location, or change the current The applied sub-width-based channel detection is switched to perform the broadband-based channel detection.
  • the switching module includes:
  • the third switching submodule is configured to perform broadband-based channel detection or subband-based channel detection on the unlicensed carrier according to the received indication signaling.
  • the third switching submodule includes one of the following:
  • a twelfth handover unit configured to perform the subband-based channel detection on the unlicensed carrier when the indication signaling carries a subband-based measurement instruction
  • the thirteenth switching unit is configured to perform the broadband-based channel detection on the unlicensed carrier when the indication signaling carries a broadband-based measurement instruction.
  • the third switching submodule includes one of the following:
  • the fourteenth switching unit is configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection when the indication signaling carries second switching measurement information, or to switch the current application
  • the sub-wide-based channel detection is switched to the broadband-based channel detection.
  • the switching module includes:
  • the fourth switching submodule is configured to perform the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to a predetermined period length.
  • a channel detection mode switching device including a processor, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs all When the executable program is described, the steps of the channel detection mode switching method described in the first aspect are executed.
  • a storage medium on which an executable program is stored, wherein the executable program is executed by a processor to implement the steps of the channel detection mode switching method in the first aspect.
  • the channel detection method switching method, device and storage medium provided by the embodiments of the present disclosure perform broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information, wherein the bandwidth of the broadband is greater than The bandwidth of the subband.
  • the channel detection method can be flexibly switched to adapt to different unlicensed carrier channel resource occupation conditions, and sub-band-based channel detection can be used
  • the subbands divided in the broadband are the unit of channel detection. When the broadband resources are partially occupied, the idle resources can be confirmed to improve the channel resource utilization.
  • Fig. 1 is a schematic structural diagram showing a wireless communication system according to an exemplary embodiment
  • Fig. 2 is a schematic diagram showing subband division of carriers according to an exemplary embodiment
  • Fig. 3 is a schematic flowchart of a method for switching channel detection modes according to an exemplary embodiment
  • Fig. 4 is a schematic diagram showing a channel detection mode switching according to an exemplary embodiment
  • Fig. 5 is a schematic diagram showing another channel detection mode switching according to an exemplary embodiment
  • Fig. 6 is a block diagram showing yet another channel detection mode switching device according to an exemplary embodiment
  • Fig. 7 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 8 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 9 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment.
  • Fig. 10 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 11 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 12 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 13 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 14 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 15 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 16 is a block diagram showing still another channel detection mode switching device according to an exemplary embodiment
  • Fig. 17 is a block diagram showing a device for switching channel detection modes according to an exemplary embodiment.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as second information, and similarly, the second information may also be referred to as first information.
  • word “if” as used herein can be interpreted as "when” or "when” or "in response to determination”.
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include several terminals 11 and several base stations 12.
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 can communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal 11 can be an IoT terminal, such as a sensor device, a mobile phone (or “cellular” phone), and
  • the computer of the Internet of Things terminal for example, may be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device.
  • station For example, station (Station, STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user terminal (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be an in-vehicle device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected to the trip computer.
  • the terminal 11 may also be a roadside device, for example, it may be a street lamp, signal lamp, or other roadside device with a wireless communication function.
  • the base station 12 may be a network side device in a wireless communication system.
  • the wireless communication system may be the 4th generation mobile communication (4G) system, also known as the Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system, Also known as the new radio (NR) system or 5G NR system.
  • the wireless communication system may also be the next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.
  • the base station 12 may be an evolved base station (eNB) used in a 4G system.
  • the base station 12 may also be a base station (gNB) adopting a centralized and distributed architecture in the 5G system.
  • the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a media access control (Media Access Control, MAC) layer.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • a physical (Physical, PHY) layer protocol stack is provided in the unit, and the embodiment of the present disclosure does not limit the specific implementation of the base station 12.
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on 5G-based next-generation mobile communication network technology standards.
  • E2E (End to End, end-to-end) connections may also be established between the terminals 11.
  • V2X vehicle-to-everything
  • V2V vehicle to vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person
  • the above-mentioned wireless communication system may further include a network management device 13.
  • the network management device 13 may be a core network device in a wireless communication system.
  • the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device may also be other core network devices, such as Serving GateWay (SGW), Public Data Network GateWay (PGW), policy and charging rules function unit (Policy and Charging Rules). Function, PCRF) or Home Subscriber Server (HSS), etc.
  • SGW Serving GateWay
  • PGW Public Data Network GateWay
  • Policy and Charging Rules Policy and Charging Rules
  • Function PCRF
  • HSS Home Subscriber Server
  • the execution subject involved in the embodiments of the present disclosure includes but is not limited to: a terminal or a base station in a wireless communication system.
  • the application scenario of the embodiment of the present disclosure is that in the development process of the wireless communication system, for the unlicensed frequency band, 3GPP proposes to use the unlicensed frequency band through the mechanism of License Assisted Access (LAA, License Assisted Access). That is to say, the use of unlicensed frequency bands is assisted by licensed frequency bands.
  • LAA also introduces a mechanism for channel detection before data transmission. When there is data to send, the sender needs to check whether the channel is idle. The sender can send data only after the channel is in an idle state.
  • the maximum bandwidth of a system's carrier is 20MHz.
  • the carrier may occupy a larger bandwidth, such as 100MHz.
  • the power consumption of the terminal can be saved by introducing a carrier with a relatively large bandwidth, that is, broadband, into multiple subbands for channel detection.
  • the subband refers to continuous resources in the frequency domain divided within the carrier bandwidth, as shown in Figure 2:
  • the carrier bandwidth is 80 MHz, which contains 4 subbands, and the bandwidth of each subband is 20 MHz.
  • the carrier is divided into multiple subbands, and channel detection is performed on different subbands respectively. For example, if the bandwidth of the carrier is 100MHz, it can be divided into 5 20MHz subbands for channel detection.
  • the transmitter In the case of using subband-based channel detection, in a broadband system, the transmitter needs to perform multiple channel detections at the same time. For example, if the bandwidth of the carrier is 100 MHz, and the channel detection is divided into 5 20 MHz subbands, the transmitter needs to perform 5 channel detection operations at the same time, and the complexity of channel detection is relatively high. In the case of using broadband-based channel detection, the failure of channel detection on any subband may cause the entire broadband resource to be unavailable, and thus the resource utilization rate is low.
  • this exemplary embodiment provides a channel detection mode switching method.
  • the channel detection mode switching method can be applied to a wireless communication transmitter, and the method includes:
  • Step 301 Perform broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information, wherein the bandwidth of the broadband is greater than the bandwidth of the sub-band.
  • Broadband-based channel detection uses the carrier bandwidth as the unit of channel detection; subband-based channel detection uses the bandwidth of multiple subbands divided from the carrier bandwidth as the unit of channel detection; where subband refers to the frequency domain divided within the bandwidth Continuous resources.
  • 5 subbands are divided into the channel detection unit within the carrier bandwidth.
  • Terminals and other wireless communication transmitters can choose to use the subband bandwidth as the channel detection unit for subband-based channel detection in different time domains, or use the broadband bandwidth as the channel detection unit for broadband-based channel detection Detection.
  • Broadband-based channel detection covers a larger carrier bandwidth than sub-band-based channel detection.
  • the selection basis information may be set at the sending end according to requirements, or may be instructed by an external device through instructions or the like.
  • the sending end may be a base station or a terminal.
  • the base station when the base station sends data to the terminal on an unlicensed carrier, it needs to determine whether the channel is free; in this case, the channel detection method can be selected according to the selection basis information.
  • the selection basis information may be set inside the base station, or may be instructed by an external device such as an external control server in the form of instructions.
  • the base station After the base station determines the channel detection mode, it performs channel detection. Finally, the idle channel is used to send data to the terminal.
  • the terminal When the terminal sends data to the base station on an unlicensed carrier, it also needs to determine whether the channel is free; at this time, the channel detection method can be selected according to the selection basis information.
  • the selection basis information may be set inside the terminal, or the base station may instruct the terminal in the form of instructions.
  • the selection basis information set internally may also be sent to the terminal by the base station or the like through signaling or the like.
  • the terminal After the terminal determines the channel detection mode, it performs channel detection. Finally, the idle channel is used to send data to the base station.
  • the channel detection method can be flexibly switched to adapt to different unlicensed carrier channel resource occupancy conditions and improve channel resource utilization.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:
  • the broadband-based channel detection or the subband-based channel detection of the first system is performed on the unlicensed carrier.
  • the selection basis information may be the signal strength measurement result of the first system to the second system, and it may be determined to perform broadband-based channel detection or subband-based channel detection according to the signal strength of the second system.
  • the first system is a system that uses different communication technologies from the second system.
  • the first system is a 5G system
  • the second system is a non-5G system, such as a WiFi system.
  • the first system is the system currently used by the sender to send data.
  • the sending end currently needs to use the 5G system to send data on the unlicensed carrier, and can perform channel detection on the 5G channel of the unlicensed carrier.
  • the signal strength of the second system of the unlicensed carrier may be measured by the first system.
  • the signal strength of the unlicensed carrier WiFi system is measured by the 5G system, that is, the signal strength of the WiFi signal within the bandwidth of the unlicensed carrier is measured; according to the measured signal strength of the WiFi system, it is determined that the 5G system adopts Broadband channel detection or subband-based channel detection.
  • the terminal uses the first system, that is, the 5G system to send data; the second system is a non-5G system such as WiFi.
  • the 5G system can measure the signal strength within the unlicensed carrier bandwidth of the second system, such as measuring WiFi in the unlicensed carrier bandwidth Signal strength within range. According to the measured signal strength, it is determined that the terminal adopts broadband-based channel detection or sub-band-based channel detection.
  • the first system may dynamically measure the signal strength of the second system of the unlicensed carrier. In this way, the occupancy of the unlicensed carrier resource can be obtained in real time, and the channel detection method can be switched.
  • the sending end may measure the signal strength of the second system on the unlicensed carrier through the first system, and determine according to the measurement result that the first system adopts broadband-based channel detection or subband-based channel detection.
  • the usage of the second system on the carrier can be determined, which provides a basis for the first system to select the channel detection mode.
  • the sending end such as the terminal can also support the first system and the second system at the same time, that is, the terminal supports the 5G system and also supports the WiFi system.
  • the WiFi system can measure the WiFi signal strength within the bandwidth of the unlicensed carrier, and send the WiFi signal strength information to the 5G system through the internal communication channel of the terminal.
  • the 5G system makes judgments and performs broadband-based channel detection or subband-based channel detection.
  • the channel detection of the first system includes one of the following: when the signal strength of the second system measured by the first system is less than a first strength threshold, performing the broadband-based signal of the first system on the unlicensed carrier Channel detection; when the signal strength of the second system measured by the first system is greater than a second strength threshold, perform the subband-based channel detection of the first system on the unlicensed carrier.
  • the first intensity threshold and the second intensity threshold may be determined according to the signal characteristics of the first system.
  • the signal measurement result is lower than the first intensity threshold, indicating that the second system occupies less or no resources on the unlicensed carrier; therefore, the first system can use broadband-based channel detection, which covers the unlicensed carrier The entire bandwidth does not need to be divided for detection to reduce the complexity of channel detection.
  • the signal measurement result is higher than the second intensity threshold, which can indicate that the second system occupies resources on the unlicensed carrier for data transmission; therefore, the first system can use subband-based channel detection, using the subband bandwidth as the channel detection unit to try Obtain free resources from unlicensed carriers.
  • the first system namely the 5G system
  • detects that the second system namely the WiFi system
  • the 5G system can use broadband-based channel detection.
  • the first intensity threshold and the second intensity threshold may be the same value or different values.
  • the first system can obtain unlicensed carrier resources in the largest range, which can reduce the complexity of channel detection; when the second system occupies unlicensed carrier resources, the first system can Use the same channel detection unit as the second system to detect idle resources on the carrier, and share carrier resources fairly with the second system.
  • the base station can determine which system the second system is and the specific values of the judgment information such as the first intensity threshold and the second intensity threshold, and instruct the terminal by issuing instructions.
  • the issued command may be radio resource control (RRC, Radio Resource Control) signaling, media access control control element (MAC CE, Media Access Control Element), or physical layer signaling.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes: performing all on the unlicensed carrier according to a received predetermined signal.
  • the selection basis information may be a predetermined signal, and the broadband-based channel detection or the subband-based channel detection is performed according to the predetermined signal.
  • the sending end is a terminal
  • the received predetermined signal of the base station can be used as a trigger command for switching the channel detection mode.
  • the base station controls the terminal to select the channel detection method.
  • the terminal when the sending end is a base station, the terminal can also trigger the base station channel detection mode through a predetermined signal.
  • the predetermined signal can be sent on a licensed carrier or an unlicensed carrier.
  • it can be sent on an unlicensed carrier.
  • the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal includes one of the following:
  • the predetermined signal is the first signal, performing the broadband-based channel detection on the unlicensed carrier;
  • the transmission resource location of the predetermined signal is the first resource location, performing the broadband-based channel detection on the unlicensed carrier;
  • the broadband-based channel detection is performed on the unlicensed carrier.
  • the first signal may be an existing signal or a newly defined specific signal agreed in advance between the sending end and the receiving end.
  • the received predetermined signal is a pre-agreed existing signal or a newly defined specific signal, perform The broadband-based channel detection.
  • the preset signal can be a cell reference signal (CRS, Cell Reference Signal), a channel state information reference signal (CSI-RS, Channel State Indication-Reference Signal), a demodulation reference signal (DMRS, Demodulation Reference Signal), and a phase tracking reference signal (PTRS, phase tracking Reference Signal), etc., can also be newly defined signals.
  • CRS Cell Reference Signal
  • CSI-RS channel state information reference signal
  • DMRS demodulation reference signal
  • PTRS phase tracking reference signal
  • PTRS phase tracking Reference Signal
  • the newly defined signal can be directly used to instruct the sending end to perform broadband-based channel detection, that is, the newly defined signal is used as the first signal.
  • the transmitter receives the newly defined signal, it performs broadband-based channel detection.
  • Some existing signals can also be used as the first signal.
  • the transmitting end can also determine to perform broadband-based channel detection through the transmission resource location of existing signals such as CRS, CSI-RS, DMRS, and PTRS or the signal sequence itself. For example, when it is detected that the transmission resource location of the existing signal or newly defined signal such as CRS, CSI-RS, DMRS, and PTRS is the first resource location, the broadband-based channel detection is performed.
  • the sending end may also use the indication information carried in the signal sequence, for example, the indication information carried in one or more bits in the signal sequence, to instruct to perform the broadband-based channel detection. For example: when it is detected that existing signals such as CRS, CSI-RS, DMRS, and PTRS or newly defined signals carry broadband-based measurement indications, broadband-based channel detection is performed.
  • both preset signal 1 and preset signal 2 are used to instruct the sending end to perform broadband-based channel detection. Therefore, preset signal 1 and preset signal 2 may be one of the following situations: preset signal 1 and preset signal 2 may be first signals of the same form or different forms, or preset signal 1 and preset signal 2
  • the sending resource location of is the first resource location, or preset signal 1 and preset signal 2 carry broadband-based measurement instructions. Wherein, the first resource location may be the sending location of the preset signal, device name, device type, etc.
  • the preset signal may be sent by the base station, and the terminal determines the channel detection mode according to the preset signal.
  • the preset signal may be sent by the terminal or other external control equipment, and the base station determines the channel detection mode according to the preset signal.
  • the performing the subband-based channel detection on the unlicensed carrier according to a predetermined signal further includes one of the following:
  • the predetermined signal is a second signal, performing the subband-based channel detection on the unlicensed carrier;
  • the transmission resource location of the predetermined signal is the second resource location, performing the subband-based channel detection on the unlicensed carrier;
  • the subband-based channel detection is performed on the unlicensed carrier.
  • the second signal may be an existing signal or a newly defined specific signal agreed in advance between the sending end and the receiving end.
  • the received predetermined signal is a pre-agreed existing signal or a newly defined specific signal, perform The broadband-based channel detection.
  • the newly defined signal can be directly used to instruct the sending end to perform subband-based channel detection, that is, the newly defined signal is used as the second signal.
  • the transmitter receives the newly defined signal, it performs broadband-based channel detection.
  • Some existing signals can also be used as second signals.
  • the transmitting end can also determine the subband-based channel detection based on the transmission resource location of existing signals such as CRS, CSI-RS, DMRS, and PTRS or the signal sequence itself; for example, when CRS, CSI-RS, DMRS and PTRS are detected
  • the second resource location may be the sending location of the preset signal, device name, device type, etc.
  • the sending end may also use the indication information carried in the signal sequence, for example, the indication information carried in one or more bits in the signal sequence, to instruct the wideband-based channel detection. For example: when it is detected that existing signals such as CRS, CSI-RS, DMRS, and PTRS or newly defined signals carry subband-based measurement indications, subband-based channel detection is performed.
  • the preset signal 3 is used to instruct the transmitter to perform subband-based channel detection. Therefore, the preset signal 3 may be one of the following situations: the preset signal 3 may be the second signal; or the transmission resource location of the preset signal 2 is the second resource location; or the preset signal 3 carries subband-based Measurement instructions.
  • the preset signal may be sent by the base station, and the terminal determines the channel detection mode according to the preset signal.
  • the preset signal may be sent by the terminal or other external control equipment, and the base station determines the channel detection mode according to the preset signal.
  • the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal includes:
  • the currently applied bandwidth-based channel detection is switched to the subband-based channel detection, or the currently applied sub-width-based channel detection Switching to perform the broadband-based channel detection;
  • the predetermined signal is the third signal, switch the currently applied bandwidth-based channel detection to the subband-based channel detection, or switch the currently applied sub-width-based channel detection to perform The wideband-based channel detection;
  • the currently applied bandwidth-based channel detection is switched to the subband-based channel detection, or the currently applied sub-width-based channel detection The channel detection is switched to perform the broadband-based channel detection.
  • the preset signal may be used as a switching signal for bandwidth-based channel detection and subband-based channel detection.
  • the sending end can switch from the currently applied channel detection mode to another channel detection mode.
  • the sender when the sender is currently performing subband-based channel detection, if a predetermined signal is received and the predetermined signal carries first handover measurement information, or the predetermined signal is the third signal, or the transmission resource of the predetermined signal If the location is the third resource location, then switch to broadband-based channel detection.
  • the preset signal is used to instruct the transmitter to switch between bandwidth-based channel detection and broadband-based channel detection. Therefore, the preset signal may be one of the following situations: the preset signal is the third signal; the transmission resource location of the preset signal is the third resource location; the preset signal carries the first handover measurement information.
  • the newly defined signal can be directly used to instruct the transmitter to switch between bandwidth-based channel detection and broadband-based channel detection. That is, the newly defined signal is used as the third signal.
  • the transmitter receives the newly defined signal, it switches the current channel detection mode to another.
  • Some existing signals can also be used as the first signal.
  • the sender can also instruct the sender to switch between bandwidth-based channel detection and broadband-based channel detection through the transmission resource location of existing signals such as CRS, CSI-RS, DMRS, and PTRS or the signal sequence itself; for example: When the transmission resource position of the existing signal or newly defined signal such as CRS, CSI-RS, DMRS, and PTRS is the third resource position, the current channel detection method is switched to another.
  • the third resource location may be the sending location of the preset signal, device name, device type, and so on.
  • the sending end can also use the first handover measurement information carried in the signal sequence, for example, the first handover measurement information carried in one or more bits in the signal sequence, to detect the bandwidth-based channel and bandwidth-based Switch between channel detection. For example, when it is detected that existing signals or newly defined signals such as CRS, CSI-RS, DMRS, and PTRS carry the first handover measurement information, the current channel detection method is switched to another one.
  • the sending end is currently performing broadband-based channel detection, if a predetermined signal is received and the predetermined signal carries first handover measurement information, or the predetermined signal is the third signal, or the transmission resource location of the predetermined signal is the third resource location, Then switch to subband-based channel detection.
  • the sending end may be a terminal or a base station.
  • the first handover measurement information may also be embodied by the transmission resource location of the preset signal or the signal sequence itself.
  • the performing broadband-based channel detection or sub-band-based channel detection on the unlicensed carrier according to the selection basis information includes: performing the channel detection based on the unlicensed carrier on the unlicensed carrier according to the received indication signaling Broadband channel detection or subband-based channel detection.
  • the received indication signaling of the base station can also be used as a trigger command for switching the channel detection mode.
  • the base station selects the channel detection mode of the terminal.
  • the terminal can also trigger the channel detection mode of the base station through indication signaling.
  • the indication signaling can be sent on a licensed carrier or an unlicensed carrier. In one embodiment, it can be sent on an unlicensed carrier.
  • the indication signaling may be downlink physical control channel (DCI, Downlink Control Information) signaling or the like.
  • DCI Downlink Physical Control channel
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the received indication signaling includes one of the following:
  • the indication signaling When the indication signaling carries a subband-based measurement indication, perform the subband-based channel detection on the unlicensed carrier;
  • the broadband-based channel detection is performed on the unlicensed carrier.
  • the subband-based measurement indication or the broadband-based measurement indication may be a fixed-length information field used at a fixed position in the indication signaling. Different information in the information domain is used to indicate broadband-based channel measurement or subband-based channel measurement.
  • the indication signaling When the indication signaling carries a broadband-based measurement instruction, no matter which channel detection is currently performed by the sending end, it switches to perform the broadband-based channel detection. When the indication signaling carries a broadband-based measurement indication, no matter which channel detection is currently performed by the transmitting end, it switches to perform the subband-based channel detection.
  • the sending end may be a terminal or a base station.
  • the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier based on the selection basis information includes: when the indication signaling carries second handover measurement information, Switching the currently applied bandwidth-based channel detection to the subband-based channel detection, or switching the currently applied sub-width-based channel detection to the broadband-based channel detection.
  • the indication signaling may carry switching information as bandwidth-based channel detection and subband-based channel detection.
  • the predetermined signal carries the second handover measurement information
  • the sending end can switch from the currently applied channel detection mode to another channel detection mode.
  • the sending end When the sending end is currently performing subband-based channel detection, if the indication signaling is received and the indication signaling carries the second handover measurement information, it switches to the broadband-based channel detection.
  • the sending end When the sending end is currently performing broadband-based channel detection, if the indication signaling is received and the indication signaling carries second handover measurement information, it switches to broadband-based channel detection.
  • the sending end may be a terminal or a base station.
  • performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes: performing the channel detection based on the unlicensed carrier on the unlicensed carrier according to a predetermined period length. Broadband channel detection or the subband-based channel detection.
  • the transmitting end such as the base station or the terminal may periodically perform broadband-based channel detection or subband-based channel detection.
  • the length of the period can be predetermined, and periodic judgments can be made on the occupation of unlicensed carrier resources to determine whether the switching channel detection conditions are met.
  • the above-mentioned first system may measure the signal strength of the second system of the unlicensed carrier on a periodic basis, such as measuring the signal strength of the second system at an interval of one week, and determine the channel detection mode. In this way, compared with dynamic real-time measurement, the load can be reduced, which can save power.
  • Method 1 Dynamically switch the channel detection mechanism.
  • the sender dynamically adjusts the channel detection mechanism based on preset rules.
  • the preset rules can be predefined.
  • the preset rules can also be notified to the terminal through RRC signaling, MAC CE, or physical layer signaling sent by the base station.
  • the preset rule may be a measured measurement result from a different system.
  • the sender When the measurement result is greater than a certain threshold, the sender needs to implement a subband-based channel access mechanism; When the measurement result is less than a certain threshold, the sender needs to implement a broadband-based channel access mechanism.
  • a trigger instruction from the base station may also be required to trigger the terminal to switch the channel detection mechanism.
  • the trigger command can be a preset signal or signaling.
  • the trigger instruction is a preset signal.
  • the signal may be a signal that has been defined in the current communication system, such as CRS, CSI-RS, DMRS, PTRS, etc., or it may be a newly defined signal.
  • the terminal can identify whether it is necessary to switch the channel detection mechanism through the transmission resource location of the signal or the signal sequence itself.
  • the terminal After receiving the preset signal, the terminal automatically changes the channel detection mechanism.
  • the preset signal may also carry indication information of the channel detection mechanism, and the terminal determines whether it is necessary to switch the channel detection mechanism based on the indication information.
  • the trigger instruction may also be preset DCI signaling, in which a fixed-length information field is used at a fixed position in the DCI signaling to indicate whether to switch the channel detection mechanism or which channel detection mechanism to use.
  • Method 2 Semi-static switching channel detection mechanism.
  • the length of the period is predefined, the sender periodically tests whether the preset condition is met, and the channel detection mechanism is switched when the preset condition is met.
  • the hybrid switching channel detection mechanism can be realized by combining the dynamic switching channel detection mechanism and the semi-static switching channel detection mechanism;
  • the length of the period can be predefined, and the channel detection mechanism of dynamic switching can be used periodically for channel detection. In this way, on the one hand, the resource condition of the unlicensed carrier can be judged when the channel is switched; on the other hand, the high load generated by the dynamic switching channel detection mechanism can be reduced, which can save power.
  • FIG. 6 is a schematic diagram of the composition structure of the channel detection mode switching device 100 provided by an embodiment of the present invention; as shown in FIG. 6, the device 100 includes:
  • the switching module 110 is configured to perform broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information, wherein the bandwidth of the broadband is greater than the bandwidth of the sub-band.
  • the switching module 110 includes:
  • the first handover sub-module 111 is configured to perform broadband-based channel detection of the first system or sub-system on the unlicensed carrier according to the signal strength measurement result of the second system of the unlicensed carrier by the first system Band channel detection.
  • the first switching submodule 111 includes one of the following:
  • the first switching unit 1111 is configured to perform the broadband-based channel of the first system on the unlicensed carrier when the signal strength of the second system measured by the first system is less than a first strength threshold. Detection
  • the second switching unit 1112 is configured to perform the subband-based signal of the first system on the unlicensed carrier when the signal strength of the second system measured by the first system is greater than a second strength threshold. Channel detection.
  • the switching module 110 includes:
  • the second switching submodule 112 is configured to perform the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal.
  • the second switching submodule 112 includes one of the following:
  • the third switching unit 1121 is configured to perform the broadband-based channel detection on the unlicensed carrier when the predetermined signal is the first signal;
  • the fourth switching unit 1122 is configured to perform the broadband-based channel detection on the unlicensed carrier when the transmission resource location of the predetermined signal is the first resource location;
  • the fifth switching unit 1123 is configured to perform the broadband-based channel detection on the unlicensed carrier when the predetermined signal carries a broadband-based measurement instruction.
  • the second switching submodule 112 includes one of the following:
  • the sixth switching unit 1124 is configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal is a second signal;
  • the seventh switching unit 1125 is configured to perform the subband-based channel detection on the unlicensed carrier when the transmission resource location of the predetermined signal is the second resource location;
  • the eighth switching unit 1126 is configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal carries a subband-based measurement instruction.
  • the second switching submodule 112 includes:
  • the ninth switching unit 1127 is configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection when the predetermined signal carries the first switching measurement information, or switch the currently applied channel detection Switching the sub-width-based channel detection to perform the broadband-based channel detection;
  • the tenth switching unit 1128 is configured to switch the currently applied bandwidth-based channel detection to the subband-based channel detection when the predetermined signal is the third signal, or switch the currently applied bandwidth-based channel detection
  • the sub-wide channel detection is switched to perform the broadband-based channel detection
  • the eleventh switching unit 1129 is configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection when the transmission resource location of the predetermined signal is the third resource location, or The currently applied sub-width-based channel detection is switched to perform the broadband-based channel detection.
  • the switching module 110 includes:
  • the third switching submodule 113 is configured to perform broadband-based channel detection or subband-based channel detection on the unlicensed carrier according to the received indication signaling.
  • the third switching submodule 113 includes one of the following:
  • the twelfth switching unit 1131 is configured to perform the subband-based channel detection on the unlicensed carrier when the indication signaling carries a subband-based measurement instruction;
  • the thirteenth switching unit 1132 is configured to perform the broadband-based channel detection on the unlicensed carrier when the indication signaling carries a broadband-based measurement instruction.
  • the third switching sub-module 113 includes one of the following:
  • the fourteenth switching unit 1133 is configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection when the indication signaling carries the second switching measurement information, or change the current The applied sub-width-based channel detection is switched to perform the broadband-based channel detection.
  • the switching module includes 110:
  • the fourth switching submodule 114 is configured to perform the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to a predetermined period length.
  • the switching module 110 and the like may be configured by one or more central processing units (CPU, Central Processing Unit), graphics processing units (GPU, Graphics Processing Unit), baseband processors (BP, baseband processor), and application Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field Programmable Gate Array (FPGA, Field- Programmable Gate Array, a general-purpose processor, a controller, a microcontroller (MCU, Micro Controller Unit), a microprocessor (Microprocessor), or other electronic components are used to implement the foregoing methods.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • BP baseband processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA Field- Programmable Gate Array
  • a general-purpose processor a controller, a microcontroller
  • Fig. 17 is a block diagram showing a device 3000 for switching channel detection modes according to an exemplary embodiment.
  • the device 3000 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And communication component 3016.
  • the processing component 3002 generally controls the overall operations of the device 3000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 3002 may include one or more processors 3020 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 3002 may include one or more modules to facilitate the interaction between the processing component 3002 and other components.
  • the processing component 3002 may include a multimedia module to facilitate the interaction between the multimedia component 3008 and the processing component 3002.
  • the memory 3004 is configured to store various types of data to support the operation of the device 3000. Examples of these data include instructions for any application or method operating on the device 3000, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 3004 can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power supply component 3006 provides power for various components of the device 3000.
  • the power supply component 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 3000.
  • the multimedia component 3008 includes a screen that provides an output interface between the device 3000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor can not only sense the boundary of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 3008 includes a front camera and/or a rear camera. When the device 3000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 3010 is configured to output and/or input audio signals.
  • the audio component 3010 includes a microphone (MIC), and when the device 3000 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 3004 or transmitted via the communication component 3016.
  • the audio component 3010 further includes a speaker for outputting audio signals.
  • the I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor assembly 3014 includes one or more sensors for providing the device 3000 with various aspects of status assessment.
  • the sensor component 3014 can detect the on/off status of the device 3000 and the relative positioning of components, such as the display and the keypad of the device 3000.
  • the sensor component 3014 can also detect the position change of the device 3000 or a component of the device 3000. The presence or absence of contact with the device 3000, the orientation or acceleration/deceleration of the device 3000, and the temperature change of the device 3000.
  • the sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 3016 is configured to facilitate wired or wireless communication between the device 3000 and other devices.
  • the device 3000 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 3016 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the device 3000 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing equipment (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which may be executed by the processor 3020 of the device 3000 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

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Abstract

Les modes de réalisation selon la présente invention concernent un procédé et un dispositif de commutation de mode de détection de canal, et un support d'informations. Ledit procédé consiste : en fonction d'informations de base de sélection, à conduire une détection de canal basée sur une bande large ou une détection de canal basée sur une sous-bande sur une porteuse non autorisée, la largeur de bande de la bande large étant supérieure à la largeur de bande de la sous-bande.
PCT/CN2019/098036 2019-07-26 2019-07-26 Procédé et dispositif de commutation de mode de détection de canal, et support d'informations WO2021016771A1 (fr)

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EP4161186A4 (fr) * 2020-05-28 2024-01-17 Beijing Xiaomi Mobile Software Co., Ltd. Procédé et appareil de détection de canal sans licence, et dispositif de communication et support de stockage

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