WO2021016771A1

WO2021016771A1 - Channel detection mode switching method and device, and storage medium

Info

Publication number: WO2021016771A1
Application number: PCT/CN2019/098036
Authority: WO
Inventors: 朱亚军
Original assignee: 北京小米移动软件有限公司
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2021-02-04
Also published as: CN110546899A; CN110546899B

Abstract

The embodiments of the present disclosure relate to a channel detection mode switching method and device, and a storage medium. Said method comprises: according to selection basis information, conducting broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier, the bandwidth of the broadband being greater than the bandwidth of the sub-band.

Description

Channel detection mode switching method, device and storage medium

Technical field

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.

Background technique

Cellular mobile communication technology is in the evolution stage of a new generation of technology. An important feature of the new generation technology is to support flexible configuration of multiple business types. Different service types have different requirements for wireless communication technologies. For example, enhanced mobile broadband (eMBB) service types mainly focus on large bandwidth, high speed, etc.; ultra-reliable, low-latency communication (uRLLC) service types mainly focus on relatively high Reliability and low latency; Mass Machine Communication (mMTC) business types mainly focus on large connections. With the continuous increase of business demand, the use of licensed spectrum has been unable to meet the growth of business demand. Therefore, mobile networks need to be deployed on unlicensed frequency bands. In the unlicensed frequency band, the cellular mobile communication system needs to share resources with other systems such as WiFi systems.

Summary of the invention

In view of this, embodiments of the present disclosure provide a channel detection method switching method, device, and storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided a channel detection mode switching method, wherein the method includes:

According to 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.

In an embodiment, the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:

According to the signal strength measurement result of the second system of the unlicensed carrier by the first system, the broadband-based channel detection or the subband-based channel detection of the first system is performed on the unlicensed carrier.

In one embodiment, according to the signal strength measurement result of the second system of the unlicensed carrier by the first system, on the unlicensed carrier, the first system's broadband-based channel detection or subband-based The channel detection includes one of the following:

When 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;

When the signal strength of the second system measured by the first system is greater than a second strength threshold, the subband-based channel detection of the first system is performed on the unlicensed carrier.

According to the received predetermined signal, the broadband-based channel detection or the subband-based channel detection is performed on the unlicensed carrier.

In an embodiment, 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:

When the predetermined signal is the first signal, performing the broadband-based channel detection on the unlicensed carrier;

When the transmission resource location of the predetermined signal is the first resource location, performing the broadband-based channel detection on the unlicensed carrier;

When the predetermined signal carries a broadband-based measurement instruction, the broadband-based channel detection is performed on the unlicensed carrier.

In an embodiment, the performing the subband-based channel detection on the unlicensed carrier according to a predetermined signal further includes one of the following:

When the predetermined signal is the second signal, perform the subband-based channel detection on the unlicensed carrier;

When the transmission resource location of the predetermined signal is the second resource location, performing the subband-based channel detection on the unlicensed carrier;

When the predetermined signal carries a subband-based measurement indication, the subband-based channel detection is performed on the unlicensed carrier.

When the predetermined signal carries the first handover measurement information, 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;

When 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;

When the transmission resource position of the predetermined signal is the third resource position, 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.

According to the received indication signaling, perform broadband-based channel detection or subband-based channel detection on the unlicensed carrier.

In an embodiment, 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:

When the indication signaling carries a subband-based measurement indication, perform the subband-based channel detection on the unlicensed carrier;

When the indication signaling carries a broadband-based measurement instruction, perform the broadband-based channel detection on the unlicensed carrier.

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.

In one embodiment, performing broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information includes:

According to a predetermined period length, the broadband-based channel detection or the subband-based channel detection is performed on the unlicensed carrier.

According to a second aspect of the embodiments of the present disclosure, there is provided 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, 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.

In an embodiment, wherein 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.

According to a third aspect of the embodiments of the present disclosure, there is provided 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.

According to a fourth aspect of the embodiments of the present disclosure, there is provided 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. In this way, using the selection basis information as the basis for selecting broadband-based channel detection or sub-band-based channel detection, 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.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the embodiments of the present disclosure.

Description of the drawings

The drawings herein are incorporated into the specification and constitute a part of the specification, show embodiments consistent with the present invention, and together with the specification are used to explain the principles of the embodiments of the present invention.

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.

Detailed ways

Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the embodiments of the present invention. Rather, they are merely examples of devices and methods that are consistent with some aspects of the embodiments of the present invention as detailed in the appended claims.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present disclosure. The singular forms of "a", "said" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and/or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

It should be understood that although the terms 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. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "when" or "in response to determination".

Please refer to FIG. 1, which shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in FIG. 1, 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.

Wherein, 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). 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. 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). Alternatively, the terminal 11 may also be a device of an unmanned aerial vehicle. Alternatively, 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. Alternatively, 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. Among them, 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. Alternatively, the wireless communication system may also be the next-generation system of the 5G system. Among them, the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.

Among them, the base station 12 may be an evolved base station (eNB) used in a 4G system. Alternatively, the base station 12 may also be a base station (gNB) adopting a centralized and distributed architecture in the 5G system. When 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. 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. In different embodiments, 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.

In some embodiments, E2E (End to End, end-to-end) connections may also be established between the terminals 11. For example, in vehicle-to-everything (V2X) communication, V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure, vehicle-to-roadside equipment) communication, and V2P (vehicle to pedestrian, vehicle-to-person) communication Waiting for the scene.

In some embodiments, the above-mentioned wireless communication system may further include a network management device 13.

Several base stations 12 are connected to the network management device 13 respectively. The network management device 13 may be a core network device in a wireless communication system. For example, 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). Alternatively, 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. The implementation form of the network management device 13 is not limited in the embodiment of the present disclosure.

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.

In the traditional LAA system, the maximum bandwidth of a system's carrier is 20MHz. In a new generation of communication system, 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. When the terminal is configured with frequency resources such as multiple subbands, how the terminal performs data transmission on multiple frequency resources needs to be clarified. 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.

When the bandwidth of the carrier is relatively large, performing channel detection with the bandwidth of the carrier as the unit of channel detection may result in the situation that channel resources on the unlicensed frequency band cannot be fairly occupied among different wireless communication systems. In this case, 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.

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.

As shown in FIG. 3, 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.

As shown in Figure 4, 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.

Here, the sending end may be a base station or a terminal.

For example, 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. 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.

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. 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.

Using the selection basis information as the basis for selecting broadband-based channel detection or sub-band-based channel detection, the channel detection method can be flexibly switched to adapt to different unlicensed carrier channel resource occupancy conditions and improve channel resource utilization.

Here, 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. For example: the first system is a 5G system, and the second system is a non-5G system, such as a WiFi system. Among them, the first system is the system currently used by the sender to send data. For example, 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. For example: 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.

Taking the terminal as the sending end as an example, 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. When the terminal sends data to the base station on an unlicensed carrier, it needs to determine whether the channel is free; at this time, 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. When the base station serves as the transmitting end, the same method can be used to select the channel detection mode, which will not be repeated here. Here, 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.

According to the signal strength measurement result of the second system of the unlicensed carrier by the first system; 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.

In one embodiment, 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. When the terminal needs to send data on an unlicensed carrier through the 5G 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. In one embodiment, according to the signal strength measurement result of the second system of the unlicensed carrier by the first system, on the unlicensed carrier, the first system's broadband-based channel detection or subband-based 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. For example: the first system, namely the 5G system, detects that the second system, namely the WiFi system, occupies the resources of the carrier. Since WiFi is based on narrowband detection, with 20MHz as the unit, when a WiFi system already exists in the carrier, then the 5G system also needs to perform channel detection based on subbands; it shares carrier resources fairly with the WiFi system. When there is no 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.

When the second system occupies less or does not occupy unlicensed carrier resources, 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.

When the sending end is a terminal, 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 Control Element), or physical layer signaling.

In an embodiment, 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 wideband-based channel detection or the subband-based channel detection.

Here, 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. When 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.

In some special cases, 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.

In one embodiment, it can be sent on an 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. When 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.

As shown in FIG. 4, 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. When 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.

In Figure 4, 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.

When the sending end is a terminal, the preset signal may be sent by the base station, and the terminal determines the channel detection mode according to the preset signal. When the sending end is a base station, 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.

When the predetermined signal is a second signal, performing the subband-based channel detection 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. When the received predetermined signal is a pre-agreed existing signal or a newly defined specific signal, perform The broadband-based channel detection. As shown in FIG. 4, 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. When 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 When the transmission resource location of the existing signal or the newly defined signal is the second resource location, perform broadband-based channel detection. Wherein, 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.

In Figure 4, 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.

When the sending end is a terminal, the preset signal may be sent by the base station, and the terminal determines the channel detection mode according to the preset signal. When the sending end is a base station, 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. In an embodiment, the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal includes:

Here, the preset signal may be used as a switching signal for bandwidth-based channel detection and subband-based channel detection. When the predetermined signal carries the first handover measurement information, the sending end can switch from the currently applied channel detection mode to another channel detection mode.

As shown in Figure 5, 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.

In Figure 5, 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. When 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. Wherein, 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. When 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. Among them, 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.

In an embodiment, 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.

When the sending end is a terminal, 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. In some special cases, when the sending end is a base station, 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.

When the indication signaling carries a broadband-based measurement instruction, 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.

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. Among them, the sending end may be a terminal or a base station.

In an embodiment, 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.

Here, the indication signaling may carry switching information as bandwidth-based channel detection and subband-based channel detection. When 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.

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. 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. Among them, the sending end may be a terminal or a base station.

In one embodiment, 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.

Here, the transmitting end such as the base station or the terminal may periodically perform broadband-based channel detection or subband-based channel detection.

For example, it is possible to pre-determine the periodicity of the unlicensed carrier being occupied, and perform subband-based channel detection during the time period when the unlicensed carrier resource is more likely to be occupied; in the time period when the unlicensed carrier resource is less likely to be occupied , Perform broadband-based channel detection. So as to realize the switching of periodic channel detection mode.

It can also make periodic judgments on the occupation of unlicensed carrier resources. 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. For example, 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.

A specific example is provided below in conjunction with any of the foregoing embodiments:

Here, there are two ways to switch the channel detection method

Method 1: Dynamically switch the channel detection mechanism.

In this method, the sender dynamically adjusts the channel detection mechanism based on preset rules. The preset rules can be predefined. When the sending end is a terminal, the preset rules can also be notified to the terminal through RRC signaling, MAC CE, or physical layer signaling sent by the base station.

In an implementation method, the preset rule may be a measured measurement result from a different system. 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.

When the sending end is a terminal, 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.

In one implementation method, 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.

Under one implementation method, as shown in Figure 5. After receiving the preset signal, the terminal automatically changes the channel detection mechanism.

In another implementation method, as shown in Figure 4. 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.

In this method, 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.

Method 3: Hybrid switching channel detection mechanism.

Here, 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.

The embodiment of the present invention also provides a channel detection mode switching device, which is applied to the transmitting end of wireless communication. 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.

In an embodiment, as shown in FIG. 7, 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.

In an embodiment, as shown in FIG. 8, 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.

In an embodiment, as shown in FIG. 9, 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.

In an embodiment, as shown in FIG. 10, 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.

In an embodiment, as shown in FIG. 11, 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.

In an embodiment, as shown in FIG. 12, 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.

In an embodiment, as shown in FIG. 13, 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.

In an embodiment, as shown in FIG. 14, 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.

In an embodiment, as shown in FIG. 15, 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.

In an embodiment, as shown in FIG. 16, 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.

In an exemplary embodiment, 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.

Fig. 17 is a block diagram showing a device 3000 for switching channel detection modes according to an exemplary embodiment. For example, 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.

Referring to Figure 17, 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. In addition, the processing component 3002 may include one or more modules to facilitate the interaction between the processing component 3002 and other components. For example, 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.

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. In some embodiments, 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. In some embodiments, 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. For example, 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. In some embodiments, 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. For example, 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. In some embodiments, 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. In an exemplary embodiment, the communication component 3016 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication. For example, 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.

In an exemplary embodiment, 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.

In an exemplary embodiment, there is also provided a 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. For example, 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.

After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other implementations of the embodiments of the present invention. This application is intended to cover any variations, uses, or adaptive changes of the embodiments of the present invention. These variations, uses, or adaptive changes follow the general principles of the embodiments of the present invention and include those in the technical field not disclosed in the embodiments of the present disclosure. Common knowledge or conventional technical means. The description and the embodiments are to be regarded as exemplary only, and the true scope and spirit of the embodiments of the present invention are pointed out by the following claims.

It should be understood that the embodiments of the present invention are not limited to the precise structure that has been described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the embodiments of the present invention is only limited by the appended claims.

Claims

A channel detection mode switching method, wherein the method includes:

According to 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 method according to claim 1, wherein the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information includes:

According to the signal strength measurement result of the second system of the unlicensed carrier by the first system, the broadband-based channel detection or the subband-based channel detection of the first system is performed on the unlicensed carrier.
2. The method according to claim 2, wherein the signal strength measurement result of the second system of the unlicensed carrier by the first system is performed on the unlicensed carrier to perform the broadband-based channel of the first system Detection or subband-based channel detection, including one of the following:

When 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;

When the signal strength of the second system measured by the first system is greater than a second strength threshold, the subband-based channel detection of the first system is performed on the unlicensed carrier.
The method according to claim 1, wherein the performing broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information comprises:

According to the received predetermined signal, the broadband-based channel detection or the subband-based channel detection is performed on the unlicensed carrier.
The method according to claim 4, wherein the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal comprises one of the following:

When the predetermined signal is the first signal, performing the broadband-based channel detection on the unlicensed carrier;

When the transmission resource location of the predetermined signal is the first resource location, performing the broadband-based channel detection on the unlicensed carrier;

When the predetermined signal carries a broadband-based measurement instruction, the broadband-based channel detection is performed on the unlicensed carrier.
The method of claim 4, wherein:

The performing the subband-based channel detection on the unlicensed carrier according to a predetermined signal further includes one of the following:

When the predetermined signal is a second signal, performing the subband-based channel detection on the unlicensed carrier;

When the transmission resource location of the predetermined signal is the second resource location, performing the subband-based channel detection on the unlicensed carrier;

When the predetermined signal carries a subband-based measurement indication, the subband-based channel detection is performed on the unlicensed carrier.
The method according to claim 4, wherein the performing the broadband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal comprises one of the following:

When the predetermined signal carries the first handover measurement information, 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;

When 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;

When the transmission resource position of the predetermined signal is the third resource position, 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 method according to claim 1, wherein the performing broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier according to the selection basis information comprises:

According to the received indication signaling, perform broadband-based channel detection or subband-based channel detection on the unlicensed carrier.
The method according to claim 8, wherein the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the received indication signaling comprises one of the following:

When the indication signaling carries a subband-based measurement indication, perform the subband-based channel detection on the unlicensed carrier;

When the indication signaling carries a broadband-based measurement instruction, the broadband-based channel detection is performed on the unlicensed carrier.
The method according to claim 8, wherein the performing broadband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information comprises:

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.
The method according to any one of claims 1 to 10, wherein, according to the selection basis information, performing broadband-based channel detection or sub-band-based channel detection on an unlicensed carrier comprises:

According to a predetermined period length, 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 device according to claim 12, wherein the switching module comprises:

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 device according to claim 13, wherein the first switching submodule comprises 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 device according to claim 12, wherein the switching module comprises:

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 apparatus according to claim 15, wherein the second switching submodule comprises 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 apparatus according to claim 15, wherein the second switching submodule comprises 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 apparatus according to claim 15, wherein the second switching submodule comprises 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 device according to claim 12, wherein the switching module comprises:

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 device according to claim 19, wherein the third switching submodule comprises 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 indication;

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 device according to claim 19, wherein the third switching submodule comprises 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 device according to any one of claims 12 to 21, wherein the switching module comprises:

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, comprising a processor, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor executes the executable program as claimed in claims 1 to 11. Steps of any of the channel detection method switching methods.
A storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the steps of the channel detection mode switching method according to any one of claims 1 to 11 are implemented.