CN110546899A

CN110546899A - channel detection mode switching method, device and storage medium

Info

Publication number: CN110546899A
Application number: CN201980001558.2A
Authority: CN
Inventors: 朱亚军
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2019-12-06
Anticipated expiration: 2039-07-26
Also published as: WO2021016771A1; CN110546899B

Abstract

the embodiment of the invention relates to a channel detection mode switching method, a channel detection mode switching device and a storage medium. And according to the selection basis information, carrying out wideband-based channel detection or subband-based channel detection on the unlicensed carrier, wherein the bandwidth of the wideband is greater than that of the subband.

Description

Channel detection mode switching method, device and storage medium

Technical Field

the present application relates to the field of wireless communications technologies, but not limited to the field of wireless communications technologies, and in particular, to a method and an apparatus for switching a channel detection scheme, and a storage medium.

background

Cellular mobile communications technology is in the evolution of a new generation of technology. An important feature of the new generation of technology is the flexible configuration that supports multiple service types. Different traffic types have different requirements for wireless communication technologies, such as: enhanced mobile broadband (eMBB) traffic types are mainly focused on large bandwidth, high rate, etc.; the ultra-reliable, low-latency communication (urrllc) service type is mainly focused on higher reliability and lower latency; mass machine type communication (mtc) traffic types are mainly focused on large connection numbers. With the increasing business demand, the use of licensed spectrum has failed to meet the increasing business demand. Therefore, there is a need to deploy mobile networks in unlicensed frequency bands. In unlicensed frequency bands, cellular mobile communication systems need to share resources with other systems, such as WiFi systems.

Disclosure of Invention

In view of this, embodiments of the present invention provide a method, an apparatus, and a storage medium for switching a channel detection mode.

According to a first aspect of the embodiments of the present invention, a method for switching a channel detection mode is provided, where the method includes:

and according to the selection basis information, carrying out wideband-based channel detection or subband-based channel detection on the unlicensed carrier, wherein the bandwidth of the wideband is greater than that of the subband.

In one embodiment, the wideband-based channel detection or the subband-based channel detection is performed on the unlicensed carrier according to the selection-dependent information: the method comprises the following steps:

And carrying out broadband-based channel detection or sub-band-based channel detection of the first system on the unlicensed carrier according to the signal strength measurement result of the first system on the second system of the unlicensed carrier.

in one embodiment, the performing wideband-based channel detection or subband-based channel detection of the first system on the unlicensed carrier according to the signal strength measurement of the second system on the unlicensed carrier by the first system includes one of:

performing the wideband-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;

And when the signal strength of the second system measured by the first system is greater than a second strength threshold, performing the sub-band-based channel detection of the first system on the unlicensed carrier.

in one embodiment, the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information includes:

and performing the wideband-based channel detection or the sub-band-based channel detection on the unlicensed carrier according to the received predetermined signal.

In one embodiment, the performing the wideband-based channel detection or the sub-band-based channel detection on the unlicensed carrier according to the received predetermined signal includes one of:

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

When the sending resource position of the predetermined signal is a first resource position, performing the channel detection based on the broadband on the unauthorized carrier;

and when the predetermined signal carries a measurement indication based on a broadband, performing the channel detection based on the broadband on the unauthorized carrier.

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

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

when the sending resource position of the predetermined signal is a second resource position, performing the sub-band-based channel detection on the unlicensed carrier;

And when the predetermined signal carries a sub-band-based measurement indication, performing the sub-band-based channel detection on the unlicensed carrier.

When the predetermined signal carries first switching measurement information, switching the currently applied channel detection based on the bandwidth to the channel detection based on the sub-band, or switching the currently applied channel detection based on the sub-bandwidth to the channel detection based on the broadband;

when the predetermined signal is a third signal, switching the currently applied bandwidth-based channel detection to the sub-band-based channel detection, or switching the currently applied sub-bandwidth-based channel detection to the wideband-based channel detection;

And when the sending resource position of the predetermined signal is a third resource position, switching the currently applied channel detection based on the bandwidth to the channel detection based on the subband, or switching the currently applied channel detection based on the subband to the channel detection based on the broadband.

And according to the received indication signaling, carrying out broadband-based channel detection or sub-band-based channel detection on the unlicensed carrier.

In one embodiment, the performing wideband-based channel detection or sub-band-based channel detection on the unlicensed carrier according to the received indication signaling includes one of:

when the indication signaling carries a measurement indication based on a sub-band, the channel detection based on the sub-band is carried out on the unauthorized carrier;

and when the indication signaling carries a measurement indication based on the broadband, the channel detection based on the broadband is carried out on the unauthorized carrier.

And when the indication signaling carries second switching measurement information, switching the currently applied channel detection based on the bandwidth to the channel detection based on the sub-band, or switching the currently applied channel detection based on the sub-bandwidth to the channel detection based on the broadband.

and according to a preset period length, carrying out the broadband-based channel detection or the sub-band-based channel detection on the unlicensed carrier.

According to a second aspect of the embodiments of the present invention, there is provided a channel detection method switching apparatus, wherein the apparatus includes:

And the switching module is used for carrying out broadband-based channel detection or subband-based channel detection on the unauthorized carrier according to the selection basis information, wherein the bandwidth of the broadband is greater than that of the subband.

in one embodiment, the switching module includes:

and the first switching submodule is used for carrying out broadband-based channel detection or subband-based channel detection of the first system on the unlicensed carrier according to the signal strength measurement result of the first system on the second system of the unlicensed carrier.

in one embodiment, the first switching sub-module comprises one of:

A first switching unit, configured to perform the wideband-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 smaller than a first strength threshold;

A second switching unit, configured to perform the subband-based channel detection for 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.

in one embodiment, the switching module includes:

A second switching sub-module, configured to perform the wideband-based channel detection or the subband-based channel detection on the unlicensed carrier according to a received predetermined signal.

In one embodiment, the second switching submodule includes one of:

A third switching unit, configured to perform the wideband-based channel detection on the unlicensed carrier when the predetermined signal is the first signal;

A fourth switching unit, configured to perform the wideband-based channel detection on the unlicensed carrier when a sending resource location of the predetermined signal is a first resource location;

A fifth switching unit, configured to perform the wideband-based channel detection on the unlicensed carrier when the predetermined signal carries a wideband-based measurement indication.

In one embodiment, the second switching submodule includes one of:

A sixth switching unit, configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal is a second signal;

A seventh switching unit, configured to perform the subband-based channel detection on the unlicensed carrier when a sending resource location of the predetermined signal is a second resource location;

an eighth switching unit, configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal carries a subband-based measurement indication.

In one embodiment, the second switching submodule includes one of:

a ninth switching unit, configured to switch the currently applied channel detection based on bandwidth to perform the channel detection based on sub-band, or switch the currently applied channel detection based on sub-bandwidth to perform the channel detection based on wideband when the predetermined signal carries first switching measurement information;

A tenth switching unit, configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection or switch the currently applied subband-based channel detection to perform the wideband-based channel detection when the predetermined signal is a third signal;

An eleventh switching unit, configured to switch the currently applied channel detection based on bandwidth to perform the channel detection based on subband or switch the currently applied channel detection based on subband to perform the channel detection based on wideband when a transmission resource location of the predetermined signal is a third resource location.

In one embodiment, the switching module includes:

And the third switching submodule is used for carrying out broadband-based channel detection or subband-based channel detection on the unauthorized carrier according to the received indication signaling.

In one embodiment, the third switching sub-module includes one of:

A twelfth switching unit, configured to perform the subband-based channel detection on the unlicensed carrier when the indication signaling carries a subband-based measurement indication;

a thirteenth switching unit, configured to perform the wideband-based channel detection on the unlicensed carrier when the indication signaling carries a wideband-based measurement indication.

in one embodiment, the third switching sub-module includes one of:

a fourteenth switching unit, configured to switch the currently applied channel detection based on bandwidth to perform the channel detection based on subband or switch the currently applied channel detection based on subband to perform the channel detection based on wideband when the indication signaling carries second switching measurement information.

In one embodiment, wherein the switching module comprises:

And the fourth switching submodule is used for carrying out the broadband-based channel detection or the sub-band-based channel detection on the unauthorized carrier according to a preset period length.

according to a third aspect of the embodiments of the present invention, there is provided a channel detection mode switching apparatus, including a processor, a memory, and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the steps of the channel detection mode switching method according to the first aspect when executing the executable program.

according to a fourth aspect of the embodiments of the present invention, there is provided a storage medium on which an executable program is stored, wherein the executable program, when executed by a processor, implements the steps of the channel detection mode switching method of the first aspect.

According to the channel detection mode switching method, device and storage medium provided by the embodiment of the invention, the channel detection based on the broadband or the channel detection based on the sub-band is carried out on the unauthorized carrier according to the selection basis information, wherein the bandwidth of the broadband is greater than that of the sub-band. Therefore, the selection basis information is used as a basis for selecting the broadband-based channel detection or the sub-band-based channel detection, the channel detection mode can be flexibly switched to adapt to different unauthorized carrier channel resource occupation conditions, the sub-band-based channel detection takes the sub-bands divided in the broadband as the unit of channel detection, the idle resources can be confirmed under the condition that the broadband resources are partially occupied, and the channel resource utilization rate is improved.

it is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the invention.

drawings

the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the embodiments.

Fig. 1 is a block diagram illustrating a wireless communication system in accordance with an exemplary embodiment;

FIG. 2 is a diagram illustrating carrier partitioning of subbands in accordance with an exemplary embodiment;

Fig. 3 is a flowchart illustrating a channel detection mode switching method according to an exemplary embodiment;

FIG. 4 is a schematic diagram illustrating a channel detection mode switching according to an exemplary embodiment

FIG. 5 is a schematic diagram illustrating another channel sensing mode switch, according to an example embodiment;

fig. 6 is a block diagram illustrating yet another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 7 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 8 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

fig. 9 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

fig. 10 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

fig. 11 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 12 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 13 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 14 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 15 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 16 is a block diagram illustrating still another channel detection mode switching apparatus according to an exemplary embodiment;

Fig. 17 is a block diagram illustrating an apparatus for channel sensing mode switching in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in embodiments of the present invention, the information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the present invention is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: several terminals 11 and several base stations 12.

Terminal 11 may refer to, among other things, a device that provides voice and/or data connectivity to a user. The terminal 11 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 11 may be an internet of things terminal, such as a sensor device, a mobile phone (or referred to as a "cellular" phone), and a computer having the internet of things terminal, and may be a fixed, portable, pocket, handheld, computer-included, or vehicle-mounted device, for example. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point (ap), a remote terminal (remote terminal), an access terminal (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user terminal (UE). Alternatively, the terminal 11 may be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, a vehicle computer with a wireless communication function, or a wireless communication device externally connected to the vehicle computer. Alternatively, the terminal 11 may be a roadside device, for example, a street lamp, a 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 a fourth generation mobile communication (4G) system, which is also called a Long Term Evolution (LTE) system; alternatively, the wireless communication system can be a 5G system, which is also called a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next-generation system of a 5G system. Among them, the Access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access network, New Generation Radio Access network). Alternatively, an MTC system.

the base station 12 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 12 may be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DU). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present invention does not limit the specific implementation manner of the base station 12.

The base station 12 and the terminal 11 may establish a wireless connection over a wireless air interface. In various embodiments, the wireless air interface is based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

in some embodiments, an E2E (End to End) connection may also be established between terminals 11. Scenarios such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to vehicle) communication in vehicle networking communication (V2X).

in some embodiments, the wireless communication system may further include a network management device 13.

Several base stations 12 are connected to a 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 (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The implementation form of the network management device 13 is not limited in the embodiment of the present invention.

The execution subject related to the embodiment of the invention includes but is not limited to: a terminal or a base station in a wireless communication system.

an application scenario of the embodiment of the present invention is that, in a development process of a wireless communication system, for an unlicensed frequency band, in 3GPP, a mechanism of Licensed Assisted Access (LAA) is proposed to use the unlicensed frequency band. That is, the use of the unlicensed frequency band is facilitated by the licensed frequency band. A mechanism for detecting a channel before data transmission is also introduced into the LAA, and a transmitting end needs to detect whether the channel is idle when data needs to be transmitted, and can transmit the data only after the channel is in an idle state.

In a conventional LAA system, the maximum bandwidth of a carrier of one system is 20MHz, while in a new generation communication system, the bandwidth that the carrier may occupy may be larger, such as 100 MHz. The power consumption of the terminal can be saved by introducing the channel detection on one carrier with a larger bandwidth, namely a broadband, and dividing the carrier into a plurality of sub-bands. In a case where a terminal is configured with frequency resources such as a plurality of subbands, it is clear how the terminal performs data transmission on the plurality of frequency resources. The sub-band refers to continuous resources in a frequency domain divided in a carrier bandwidth, as shown in fig. 2: the bandwidth of the carrier is 80MHz, and 4 sub-bands are included in the carrier, and the bandwidth of each sub-band is 20 MHz.

When the bandwidth of the carrier is relatively large, performing channel detection by using the bandwidth of the carrier as a unit of channel detection may cause that channel resources on the unlicensed frequency band cannot be fairly occupied between different wireless communication systems. In this case, the carrier is divided into a plurality of subbands, and channel detection is performed on the different subbands, respectively. For example, the bandwidth of the carrier is 100MHz, the carrier may be divided into 5 sub-bands of 20MHz for channel detection respectively.

in the case of using subband-based channel detection, the transmitting end needs to perform channel detection multiple times at the same time in a wideband system. For example, if the bandwidth of the carrier is 100MHz, then the carrier is divided into 5 subbands of 20MHz to perform channel detection, the transmitting end needs to perform channel detection operation 5 times at the same time, and the complexity of channel detection is high. In the case of wideband-based channel detection, failure of channel detection on any sub-band may result in the whole wideband resource being unavailable, and thus the resource utilization is low.

as shown in fig. 3, the present exemplary embodiment provides a channel detection method switching method, where the channel detection method switching method may be applied to a transmitting end of wireless communication, and the method includes:

Step 301: and according to the selection basis information, carrying out wideband-based channel detection or subband-based channel detection on the unlicensed carrier, wherein the bandwidth of the wideband is greater than that of the subband.

the channel detection based on the broadband takes the carrier bandwidth as the unit of the channel detection; the sub-band-based channel detection uses the bandwidths of a plurality of sub-bands divided in a carrier bandwidth as a unit of channel detection; wherein, a sub-band refers to a resource which is continuous in a frequency domain and is divided inside a bandwidth.

As shown in fig. 4, 5 subbands are divided within a carrier bandwidth as a unit of channel detection. A transmitting side of wireless communication such as a terminal can select a sub-band bandwidth as a unit of channel detection and perform sub-band channel detection or a wideband bandwidth as a unit of channel detection in different time domains. Wideband-based channel sensing covers a carrier bandwidth that is larger than subband-based channel sensing.

the selection can be set according to the requirement at the sending end according to the information, or the external equipment indicates the selection through the form of instructions and the like.

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

for example, when the base station transmits data to the terminal on an unlicensed carrier, it needs to determine whether a channel is idle; at this time, the channel detection mode can be selected according to the selection basis information. The selection-dependent information may be provided inside the base station or may be indicated by an external device such as an external control server or the like in the form of instructions. And after determining the channel detection mode, the base station carries out channel detection. And finally, transmitting data to the terminal by using the idle channel.

When the terminal sends data to the base station on the unauthorized carrier, whether the channel is idle or not needs to be determined; at this time, the channel detection mode can be selected according to the selection basis information. The selection-dependent information may be provided inside the terminal, or may be indicated to the terminal in the form of an instruction by the base station or the like. The selection basis information set inside may be transmitted to the terminal by the base station or the like through signaling or the like. And after determining the channel detection mode, the terminal performs channel detection. And finally, transmitting data to the base station by using the idle channel.

The selection basis information is used as a basis for selecting the broadband-based channel detection or the sub-band-based channel detection, and the channel detection mode can be flexibly switched, so that the method is suitable for different channel resource occupation conditions of the unlicensed carrier, and the channel resource utilization rate is improved.

Here, the selection-dependent information may be a signal strength measurement result of the first system with respect to the second system, and the wideband-based channel detection or the subband-based channel detection may be determined to be performed according to the signal strength of the second system.

the first system is a system that employs a different communication technology than the second system. For example: the first system is a 5G system, and the second system is other systems which are not 5G, such as a WiFi system and the like. The first system is a system adopted by a sending end to send data currently. For example: the sending end needs to send data on the unauthorized carrier wave by adopting a 5G system at present, and can carry out channel detection on a 5G channel of the unauthorized carrier wave.

The signal strength of the second system of unlicensed carriers may be measured by the first system. For example: measuring the signal strength of the WiFi system of the unauthorized carrier by the 5G system, namely measuring the signal strength of the WiFi signal in the bandwidth range of the unauthorized carrier; and determining that the 5G system adopts broadband-based channel detection or sub-band-based channel detection according to the measured signal strength of the WiFi system.

Taking a terminal as an example as a sending end, the terminal adopts a first system, namely a 5G system to send data; the second system is a non-5G system such as WiFi. When a terminal sends data to a base station on an unauthorized carrier, whether a channel is idle needs to be determined; at this time, the 5G system may measure the signal strength of the second system within the unlicensed carrier bandwidth, such as measuring the signal strength of WiFi within the unlicensed carrier bandwidth. And determining that the terminal adopts the channel detection based on the broadband or the channel detection based on the sub-band according to the measured signal intensity. When the base station is used as the transmitting end, the same method can be adopted to select the channel detection mode, and further description is omitted. Here, the first system may dynamically measure the signal strength of the second system of the unlicensed carrier, so that the occupation situation of the unlicensed carrier resource may be obtained in real time, and implementation switching of the channel detection mode may be implemented.

the sending end can measure the signal intensity of the second system on the unauthorized carrier wave through the first system, and determines that the first system adopts the channel detection based on the broadband or the channel detection based on the sub-band according to the measurement result.

Measuring the signal strength of a second system of the unauthorized carrier waves according to the first system; the use condition of the second system on the carrier can be determined, and a basis is provided for the first system to select a channel detection mode.

In an embodiment, the transmitting end such as the terminal may 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 the unauthorized carrier through the 5G system, the WiFi system can measure the WiFi signal strength within the unauthorized carrier bandwidth range, the WiFi signal strength information is sent to the 5G system through the internal communication path of the terminal, and the 5G system judges to carry out channel detection based on a broadband or channel detection based on a subband. In one embodiment, the performing wideband-based channel detection or subband-based channel detection of the first system on the unlicensed carrier according to the signal strength measurement of the second system on the unlicensed carrier by the first system includes one of: performing the wideband-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; and when the signal strength of the second system measured by the first system is greater than a second strength threshold, performing the sub-band-based channel detection of the first system on the unlicensed carrier.

the first intensity threshold and the second intensity threshold may be determined based on signal characteristics of the first system.

the signal measurement result is lower than the first intensity threshold value, which indicates that the second system occupies less resources on the unauthorized carrier wave, even does not occupy the resources; therefore, the first system can adopt broadband-based channel detection, the channel detection covers the whole bandwidth of the unlicensed carrier, and the whole bandwidth does not need to be divided for detection, so that the complexity of channel detection is reduced.

The signal measurement result is higher than the second intensity threshold, which can indicate that the second system occupies the resource on the unauthorized carrier for data transmission; therefore, the first system may employ subband-based channel detection to attempt to acquire free resources from the unlicensed carrier in units of channel detection of the bandwidth of the subband. For example: the first system, i.e. the 5G system, detects that the second system, i.e. the WiFi system, occupies the resources of the carrier. Since WiFi is based on narrowband detection, taking 20MHz as a unit, when there is a WiFi system in a carrier, then the 5G system also needs to perform channel detection based on a subband; and sharing the resources of the carrier fairly with the WiFi system. When there is no WiFi system, the 5G system may use wideband 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 the unauthorized carrier resources, the first system acquires the unauthorized carrier resources in the maximum range, so that the complexity of channel detection can be reduced; when the second system occupies the unauthorized carrier resource, the first system may detect the idle resource on the carrier by using the same channel detection unit as the second system, and fairly share the resource of the carrier with the second system.

When the sending end is a terminal, the base station may determine which system the second system is, and specific values of the first strength threshold, the second strength threshold, and the like, and instruct the terminal in a manner of issuing an instruction. The issued command may be a Radio Resource Control (RRC) signaling, a Media Access Control Element (MAC CE), or a physical layer signaling.

In one embodiment, the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information includes: and performing the wideband-based channel detection or the sub-band-based channel detection on the unlicensed carrier according to the received predetermined signal.

Here, the selection-dependent information may be a predetermined signal according to which the wideband-based channel detection or the subband-based channel detection is performed. When the transmitting end is a terminal, the received predetermined signal of the base station may be used as a trigger instruction for switching the channel detection mode. The base station controls the way in which the terminal selects channel detection.

In some special cases, when the transmitting end is a base station, the terminal may also trigger the base station channel detection mode through a predetermined signal.

the predetermined signal may be transmitted on a licensed carrier or an unlicensed carrier.

in one embodiment, the transmission may be on an unlicensed carrier.

The first signal may be an existing signal agreed in advance between the transmitting end and the receiving end or a newly defined specific signal, and the wideband-based channel detection is performed when the received predetermined signal is the pre-agreed existing signal or the newly defined specific signal.

The preset Signal may be a Cell Reference Signal (CRS, Cell Reference Signal), a Channel State information Reference Signal (CSI-RS), a Demodulation Reference Signal (DMRS), a phase tracking Reference Signal (PTRS, phase tracking Reference Signal), or the like, or may be a newly defined Signal.

as shown in fig. 4, the new definition signal can be directly used to instruct the transmitting end to perform wideband-based channel detection, i.e., the new definition signal is used as the first signal. And when the transmitting end receives the new definition signal, carrying out channel detection based on the broadband. Some existing signals may also be used as the first signal.

the sending end can also determine to perform the channel detection based on the broadband through the sending resource positions of the existing signals such as the CRS, the CSI-RS, the DMRS and the PTRS or the signal sequence itself. For example: and when detecting that the sending resource position of the existing signals such as CRS, CSI-RS, DMRS and PTRS or the newly defined signals is the first resource position, carrying out channel detection based on the broadband.

the transmitting end may further indicate the performing of the wideband-based channel detection through indication information carried in a signal sequence, for example, through indication information carried in 1 or more bits in the signal sequence. For example: and when detecting that the existing signals or the newly defined signals such as the CRS, the CSI-RS, the DMRS, the PTRS and the like carry the measurement indication based on the broadband, carrying out the channel detection based on the broadband.

in fig. 4, both the preset signal 1 and the preset signal 2 are used to instruct the transmitting end to perform wideband-based channel detection. Thus, the preset signal 1 and the preset signal 2 may be one of the following cases: the preset signal 1 and the preset signal 2 may be first signals of the same form or different forms, or the transmission resource positions of the preset signal 1 and the preset signal 2 are first resource positions, or the preset signal 1 and the preset signal 2 carry measurement instructions based on a wideband. The first resource location may be a transmission location, a device name, a device type, and the like of a preset signal.

When the sending end is a terminal, the preset signal can be sent by the base station, and the terminal determines the channel detection mode according to the preset signal. When the transmitting end is a base station, the preset signal can be transmitted by a terminal or other external control equipment, and the base station determines a channel detection mode according to the preset signal.

the second signal may be an existing signal agreed in advance between the transmitting end and the receiving end or a newly defined specific signal, and the wideband-based channel detection is performed when the received predetermined signal is the pre-agreed existing signal or the newly defined specific signal. As shown in fig. 4, the newly defined signal can be directly used to instruct the transmitting end to perform subband-based channel detection, i.e., to use the newly defined signal as the second signal. And when the transmitting end receives the new definition signal, carrying out channel detection based on the broadband. Some existing signals may also be used as the second signal.

the sending end can also determine to carry out sub-band-based channel detection through the sending resource positions or the signal sequences of the existing signals such as CRS, CSI-RS, DMRS and PTRS; for example: and when detecting that the sending resource position of the existing signals such as CRS, CSI-RS, DMRS, PTRS and the like or the newly defined signals is a second resource position, carrying out channel detection based on the broadband. The second resource location may be a transmission location, a device name, a device type, etc. of the preset signal.

The transmitting end may further indicate the performing of the wideband-based channel detection through indication information carried in a signal sequence, for example, through indication information carried in 1 or more bits in the signal sequence. For example: and when detecting that the existing signals such as CRS, CSI-RS, DMRS and PTRS or the newly defined signals carry the measurement indication based on the sub-band, carrying out the channel detection based on the sub-band.

in fig. 4, the preset signal 3 is used to instruct the transmitting end to perform subband-based channel detection. Thus, the preset signal 3 may be one of the following cases: the preset signal 3 may be a second signal; or presetting the sending resource position of the signal 2 as a second resource position; or the preset signal 3 carries a subband based measurement indication.

when the sending end is a terminal, the preset signal can be sent by the base station, and the terminal determines the channel detection mode according to the preset signal. When the transmitting end is a base station, the preset signal can be transmitted by a terminal or other external control equipment, and the base station determines a channel detection mode according to the preset signal. In one embodiment, the performing the wideband-based channel detection or the sub-band-based channel detection on the unlicensed carrier according to the received predetermined signal includes:

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

as shown in fig. 5, when the sending end currently performs subband-based channel detection, if a predetermined signal is received and the predetermined signal carries first handover measurement information, or the predetermined signal is a third signal, or a sending resource location of the predetermined signal is a third resource location, the sending end switches to wideband-based channel detection.

in fig. 5, the preset signal is used to instruct the transmitting end to switch between bandwidth-based channel detection and bandwidth-based channel detection. Thus, the preset signal may be one of the following cases: the preset signal is a third signal; presetting a sending resource position of a signal as a third resource position; the preset signal carries first switching measurement information.

The new definition signal may be used directly to instruct the transmitting end to switch between bandwidth-based channel detection and bandwidth-based channel detection. I.e. the new definition signal is taken as the third signal. When the sending end receives the new definition signal, the current channel detection mode is switched to another one. Some existing signals may also be used as the first signal.

the sending end can also instruct the sending end to switch between the channel detection based on the bandwidth and the channel detection based on the bandwidth through the sending resource positions of the existing signals such as CRS, CSI-RS, DMRS and PTRS or the signal sequence; for example: and when the sending resource position of the existing signals or the newly defined signals such as the CRS, the CSI-RS, the DMRS, the PTRS and the like is detected to be a third resource position, switching the current channel detection mode to another one. The third resource location may be a transmission location of a preset signal, a device name, a device type, and the like.

the transmitting end may also switch between bandwidth-based channel detection and wideband-based channel detection through first switch measurement information carried in the signal sequence, for example, through first switch measurement information carried in 1 or more bits in the signal sequence. For example: and when detecting that the existing signals or the newly defined signals such as the CRS, the CSI-RS, the DMRS, the PTRS and the like carry the first switching measurement information, switching the current channel detection mode to another one. When the sending end carries out the channel detection based on the broadband currently, if a preset signal is received and carries first switching measurement information, or the preset signal is a third signal, or the sending resource position of the preset signal is a third resource position, switching to the channel detection based on the subband. 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 predetermined signal or the signal sequence itself.

in one embodiment, the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information includes: and according to the received indication signaling, carrying out broadband-based channel detection or sub-band-based channel detection on the unlicensed carrier.

When the sending end is a terminal, the received indication signaling of the base station may also be used as a trigger instruction 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 may also trigger the base station channel detection mode through the indication signaling.

The indication signaling may be sent on a licensed carrier or an unlicensed carrier. In one embodiment, the transmission may be on an unlicensed carrier.

the indication signaling may be Downlink physical Control channel (DCI) signaling or the like.

The sub-band based measurement indication or the wideband based measurement indication may be a fixed length information field used at a fixed location in the indication signaling. The wideband-based channel measurement or the subband-based channel measurement is performed by different information indications in the information domain.

and when the indication signaling carries the measurement indication based on the broadband, the sending end is switched to carry out the channel detection based on the broadband no matter which channel detection is currently carried out by the sending end. And when the indication signaling carries the measurement indication based on the broadband, the sending end is switched to perform the channel detection based on the sub-band no matter which channel detection is currently performed by the sending end. The sending end may be a terminal or a base station.

in one embodiment, the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information includes: and when the indication signaling carries second switching measurement information, switching the currently applied channel detection based on the bandwidth to the channel detection based on the sub-band, or switching the currently applied channel detection based on the sub-bandwidth to the channel detection based on the broadband.

Here, the indication signaling may carry handover information which is bandwidth-based channel detection and subband-based channel detection. When the predetermined signal carries the second handover measurement information, the transmitting end may switch from the currently applied channel detection mode to another channel detection mode.

when the sending end carries out the channel detection based on the sub-band currently, if the indication signaling is received and carries the second switching measurement information, the channel detection based on the broadband is switched. When the sending end carries out the channel detection based on the broadband currently, if the indication signaling is received and carries the second switching measurement information, the channel detection based on the broadband is switched to. The sending end may be a terminal or a base station.

In one embodiment, the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information includes: and according to a preset period length, carrying out the broadband-based channel detection or the sub-band-based channel detection on the unlicensed carrier.

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

For example, the periodic rule that the unlicensed carrier is occupied can be predetermined, and the channel detection based on the sub-band is performed in the time period with higher probability of the resource occupation of the unlicensed carrier; and carrying out channel detection based on the broadband in a time period with low occupation probability of the unauthorized carrier resources. Therefore, the switching of the periodic channel detection mode is realized.

The occupied condition of the unauthorized carrier wave resources can be periodically judged, the period length can be preset, the occupied condition of the unauthorized carrier wave resources can be periodically judged, and whether the switching channel detection condition is met or not is determined. For example, the measurement of the signal strength of the second system of the unlicensed carrier by the first system may be performed periodically, for example, by measuring the signal strength of the second system at intervals of one week and determining the channel detection. Therefore, compared with dynamic real-time measurement, the load can be reduced, and the effect of saving electric quantity is achieved.

one specific example is provided below in connection with any of the embodiments described above:

Here, two ways of switching channel detection are provided

Mode 1: the channel detection mechanism is dynamically switched.

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

in an implementation method, the preset rule may be a measured measurement result from an inter-system, and when the measurement result is greater than a certain threshold, the transmitting end needs to execute a channel access mechanism based on a sub-band; when the measurement result is smaller than a certain threshold, the sending end needs to execute a channel access mechanism based on the broadband.

When the sending end is a terminal, a trigger instruction of the base station may be further required to trigger the terminal to perform the switching of the channel detection mechanism. The triggering instruction may be a predetermined signal or signaling.

in one embodiment, the trigger command is a predetermined signal. The signal may be a signal already defined in the current communication system, such as CRS, CSI-RS, DMRS, PTRS, etc., or may be a newly defined signal. The terminal can identify whether the channel detection mechanism needs to be switched by the transmission resource position of the signal or the signal sequence itself.

under one implementation, as shown in FIG. 5. And the terminal automatically changes a channel detection mechanism after receiving the preset signal.

In another implementation, as shown in fig. 4, the preset signal may further carry indication information of a channel detection mechanism, and the terminal determines whether to switch the channel detection mechanism based on the indication information.

The trigger instruction may also be a preset DCI signaling, where a fixed-length information field is used at a fixed location in the DCI signaling to indicate whether to switch a channel detection mechanism or which channel detection mechanism to use.

Mode 2: semi-static handover channel detection mechanism.

In the method, the length of the period is predefined, the sending end periodically tests whether the preset condition is met, and the channel detection mechanism is switched under the condition that the preset condition is met.

mode 3: hybrid handover channel detection mechanism.

Here, the hybrid handover channel detection mechanism may be implemented by combining a dynamic handover channel detection mechanism and a semi-static handover channel detection mechanism;

the length of the period may be predefined, and the dynamic switching channel detection mechanism is periodically adopted for channel detection. Therefore, on one hand, the resource condition of the unauthorized 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, and the function of saving electric quantity is achieved.

Fig. 6 is a schematic structural diagram of a configuration of the channel detection mode switching apparatus 100 according to an embodiment of the present invention, where the channel detection mode switching apparatus is applied to a transmitting end of wireless communication; as shown in fig. 6, the apparatus 100 includes:

A switching module 110, configured to perform wideband-based channel detection or subband-based channel detection on an unlicensed carrier according to the selection basis information, where a bandwidth of the wideband is greater than a bandwidth of the subband.

in one embodiment, as shown in fig. 7, the switching module 110 includes:

And the first switching sub-module 111 is configured to perform wideband-based channel detection or subband-based channel detection of the first system on the unlicensed carrier according to a signal strength measurement result of the first system on the second system of the unlicensed carrier.

in one embodiment, as shown in fig. 8, the first switching sub-module 111 includes one of:

A first switching unit 1111, configured to perform the wideband-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 smaller than a first strength threshold;

A second switching unit 1112, configured to perform the subband-based channel detection for 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.

in one embodiment, as shown in fig. 9, the switching module 110 includes:

A second switching sub-module 112, configured to perform the wideband-based channel detection or the subband-based channel detection on the unlicensed carrier according to a received predetermined signal.

In one embodiment, as shown in fig. 10, the second switching sub-module 112 includes one of:

A third switching unit 1121 configured to perform the wideband-based channel detection on the unlicensed carrier when the predetermined signal is a first signal;

A fourth switching unit 1122, configured to perform the wideband-based channel detection on the unlicensed carrier when a transmission resource location of the predetermined signal is a first resource location;

A fifth switching unit 1123, configured to perform the wideband-based channel detection on the unlicensed carrier when the predetermined signal carries a wideband-based measurement indication.

In one embodiment, as shown in fig. 11, the second switching sub-module 112 includes one of:

a sixth switching unit 1124, configured to perform the subband-based channel detection on the unlicensed carrier when the predetermined signal is a second signal;

A seventh switching unit 1125, configured to perform the subband-based channel detection on the unlicensed carrier when a transmission resource location of the predetermined signal is a second resource location;

an eighth switching unit 1126, configured to, when the predetermined signal carries a subband-based measurement indication, perform the subband-based channel detection on the unlicensed carrier.

in one embodiment, as shown in fig. 12, the second switching sub-module 112 includes:

A ninth switching unit 1127, configured to switch the currently applied channel detection based on bandwidth to perform the channel detection based on subband or switch the currently applied channel detection based on subband to perform the channel detection based on wideband when the predetermined signal carries first switching measurement information;

A tenth switching unit 1128, configured to switch the currently applied bandwidth-based channel detection to perform the subband-based channel detection or switch the currently applied subband-based channel detection to perform the wideband-based channel detection when the predetermined signal is a third signal;

an eleventh switching unit 1129, configured to switch the currently applied channel detection based on bandwidth to perform the channel detection based on subband or switch the currently applied channel detection based on subband to perform the channel detection based on wideband when the transmission resource location of the predetermined signal is a third resource location.

in one embodiment, as shown in fig. 13, the switching module 110 includes:

and a third switching sub-module 113, configured to perform wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the received indication signaling.

In one embodiment, as shown in fig. 14, the third switching sub-module 113 includes one of:

A twelfth switching unit 1131, configured to perform, on the unlicensed carrier, the subband-based channel detection when the indication signaling carries a subband-based measurement indication;

A thirteenth switching unit 1132, configured to, when the indication signaling carries a measurement indication based on a wideband, perform the wideband-based channel detection on the unlicensed carrier.

In one embodiment, as shown in fig. 15, the third switching sub-module 113 includes one of:

A fourteenth switching unit 1133, configured to switch the currently applied channel detection based on the bandwidth to perform the channel detection based on the subband or switch the currently applied channel detection based on the subband to perform the channel detection based on the wideband when the indication signaling carries second switching measurement information.

in one embodiment, as shown in fig. 16, the switching module includes 110:

a fourth switching sub-module 114, configured to perform the wideband-based channel detection or the subband-based channel detection on the unlicensed carrier according to a predetermined cycle length.

In an exemplary embodiment, the switching module 110, etc. may be implemented by one or more Central Processing Units (CPUs), Graphics Processing Units (GPUs), Baseband Processors (BPs), Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controller Units (MCUs), microprocessors (processors), or other electronic components for performing the aforementioned methods.

Fig. 17 is a block diagram illustrating an apparatus 3000 for channel detection mode switching according to an example embodiment. For example, the apparatus 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

referring to fig. 17, the apparatus 3000 may include one or more of the following components: processing component 3002, memory 3004, power component 3006, multimedia component 3008, audio component 3010, input/output (I/O) interface 3012, sensor component 3014, and communications component 3016.

the processing component 3002 generally controls the overall operation 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 perform all or a portion of the steps of the methods described above. Further, the processing component 3002 may include one or more modules that facilitate interaction between the processing component 3002 and other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the multimedia component 3008 and the processing component 3002.

the memory 3004 is configured to store various types of data to support operations at the device 3000. Examples of such data include instructions for any application or method operating on device 3000, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 3004 may be implemented by any type or combination of volatile or non-volatile memory devices 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 or optical disks.

the power supply component 3006 provides power to the various components of the device 3000. The power components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 3000.

the multimedia component 3008 includes a screen that provides an output interface between the device 3000 and a 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 an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, multimedia component 3008 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 3000 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

the audio component 3010 is configured to output and/or input an audio signal. For example, the audio component 3010 may include a Microphone (MIC) configured to receive external audio signals when the apparatus 3000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be 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.

I/O interface 3012 provides an interface between processing component 3002 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

the sensor component 3014 includes one or more sensors for providing status assessment of various aspects to the device 3000. For example, the sensor component 3014 can detect the open/closed status of the device 3000, the relative positioning of components, such as a display and keypad of the apparatus 3000, the sensor component 3014 can also detect a change in the position of the apparatus 3000 or a component of the apparatus 3000, the presence or absence of user contact with the apparatus 3000, orientation or acceleration/deceleration of the apparatus 3000, and a change in the temperature of the apparatus 3000. The sensor assembly 3014 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 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 assembly 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 apparatus 3000 and other devices. Device 3000 may 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 associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may 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 apparatus 3000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 3004 comprising instructions, executable by the processor 3020 of the apparatus 3000 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the invention following, in general, the principles of the embodiments of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the embodiments of the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of embodiments of the invention being indicated by the following claims.

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

Claims

1. A channel detection mode switching method is characterized by comprising the following steps:

2. The method of claim 1, wherein the wideband-based channel detection or the subband-based channel detection is performed on an unlicensed carrier according to the selection-dependent information: the method comprises the following steps:

3. The method of claim 2, wherein the performing wideband-based channel detection or subband-based channel detection of the first system on the unlicensed carrier based on the signal strength measurements of the first system on the second system of the unlicensed carrier comprises one of:

4. The method of claim 1, wherein the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information comprises:

5. the method of claim 4, wherein the performing the wideband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal comprises one of:

6. The method of claim 4,

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

7. The method of claim 4, wherein the performing the wideband-based channel detection or the subband-based channel detection on the unlicensed carrier according to the received predetermined signal comprises one of:

8. The method of claim 1, wherein the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information comprises:

9. the method of claim 8, wherein the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the received indication signaling comprises one of:

10. The method of claim 8, wherein the performing wideband-based channel detection or subband-based channel detection on the unlicensed carrier according to the selection-dependent information comprises:

11. the method according to any one of claims 1 to 10, wherein performing wideband-based channel detection or subband-based channel detection on unlicensed carriers according to the selection dependency information comprises:

12. A channel detection scheme switching apparatus, comprising:

13. The apparatus of claim 12, wherein the switching module comprises:

14. The apparatus of claim 13, wherein the first switching submodule comprises one of:

15. The apparatus of claim 12, wherein the switching module comprises:

16. the apparatus of claim 15, wherein the second switching submodule comprises one of:

17. The apparatus of claim 15, wherein the second switching submodule comprises one of:

18. The apparatus of claim 15, wherein the second switching submodule comprises one of:

19. The apparatus of claim 12, wherein the switching module comprises:

20. The apparatus of claim 19, wherein the third switching sub-module comprises one of:

21. The apparatus of claim 19, wherein the third switching sub-module comprises one of:

22. The apparatus according to any one of claims 12 to 21, wherein the switching module comprises:

23. A channel detection mode switching apparatus comprising a processor, a memory and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the executable program to perform the steps of the channel detection mode switching method according to any one of claims 1 to 11.

24. A storage medium on which an executable program is stored, wherein the executable program, when executed by a processor, implements the steps of the channel detection mode switching method according to any one of claims 1 to 11.