An access method, device, and apparatus for an unlicensed channel, and a storage medium

Abstract

The present disclosure provides a non-licensed channel access method, device, equipment and storage medium, the method comprises: determining the detection mode of listen before talk (LBT) detection of the non-licensed channel, the detection mode comprises a first mode or a second mode; wherein the first mode comprises that the sender equipment performs LBT detection to obtain a first detection result; the second mode comprises that the sender equipment performs LBT detection to obtain a first detection result, and obtains a second detection result of LBT detection of the receiver equipment; and performing detection on the non-licensed channel according to the determined detection mode. In the present disclosure, the sender equipment can use different ways to detect the non-licensed channel, that is, it can also use the first mode to detect the non-licensed channel, or use the second mode to detect the non-licensed channel. When the sender equipment uses the first mode, it can save signaling overhead, and when it uses the second mode, it can improve the detection accuracy of the interference level. The sender equipment switches between the two detection modes, which can use different detection modes in different application scenarios to meet different detection requirements.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a method, apparatus, device, and storage medium for accessing an unlicensed channel. Background Technology

[0002] Radio spectrum resources are a finite and non-renewable natural resource. Therefore, each country has a dedicated management agency and specific policies and regulations to achieve unified planning and management of the radio spectrum. Currently, most countries adopt a fixed spectrum allocation strategy, where spectrum resources are managed by the government authorities and allocated to a fixed number of licensed users. This ensures that users avoid excessive mutual interference and better utilize spectrum resources. Currently, spectrum resources can be divided into two categories: licensed spectrum and unlicensed spectrum.

[0003] The licensed spectrum is strictly limited and protected, allowing access only to authorized users and their compliant devices.

[0004] While unlicensed frequency bands are abundant, in order to ensure fair coexistence among different Radio Access Technologies (RATs) using these bands, the Listen before talk (LBT) technology based on Clear Channel Assessment (CCA) has been introduced. Introducing LBT into the New Radio Based Unlicensed Access (NR-U) in unlicensed frequency bands is an important way to ensure fair coexistence. Summary of the Invention

[0005] In view of this, the present disclosure provides a method, apparatus, device and storage medium for accessing an unlicensed channel.

[0006] According to a first aspect of the embodiments of this disclosure, an access method for an unlicensed channel is provided, applied to a transmitting device, comprising:

[0007] The detection method for Listen-Before-Speak (LBT) detection on unlicensed channels is determined, and the detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining a second detection result of LBT detection performed by the receiving device;

[0008] Unlicensed channels are detected according to the determined detection method.

[0009] In one embodiment, determining the detection method for LBT detection of the unlicensed channel includes:

[0010] The detection method is determined based on the HARQ-ACK feedback results from the receiving device.

[0011] In one embodiment, determining the detection method based on the HARQ-ACK feedback result of the receiving device includes:

[0012] If the proportion of NACKs received within the first time interval is greater than or equal to a threshold value, it is determined that the second method will be used to perform LBT detection on the unlicensed channel.

[0013] In one embodiment, determining the detection method based on the HARQ-ACK feedback result of the receiving device includes:

[0014] If the proportion of NACKs received within a first time interval is less than or equal to a threshold value, it is determined that the first method should be used to perform LBT detection on the unlicensed channel.

[0015] In one embodiment, determining the detection method for LBT detection of the unlicensed channel includes:

[0016] In response to receiving the auxiliary activation request from the receiving device, it is determined that the second method will be used to perform LBT detection on the unlicensed channel.

[0017] In one embodiment, determining the detection method for LBT detection of the unlicensed channel includes:

[0018] In response to receiving a termination assistance request from the receiving device, it is determined that the unlicensed channel will be subjected to LBT detection using a first method.

[0019] In one embodiment, determining the detection method for LBT detection of the unlicensed channel includes:

[0020] In response to receiving configuration signaling, the detection method for LBT detection of unlicensed channels is determined based on the configuration signaling.

[0021] In one embodiment, determining the detection method for LBT detection of the unlicensed channel includes:

[0022] In response to receiving a Medium Access Layer (MAC) signaling or a Radio Resource Control (RRC) signaling, a detection method for performing LBT detection on the unlicensed channel using the second method is determined based on a preset field of the MAC or RRC signaling.

[0023] or

[0024] In response to receiving MAC signaling or RRC signaling, the detection mode for LBT detection of the unlicensed channel is determined by switching from the first mode to the second mode based on the preset fields of the MAC signaling or RRC signaling.

[0025] In one embodiment, determining the detection method for LBT detection of the unlicensed channel includes:

[0026] In response to receiving MAC signaling or RRC signaling, a detection method for LBT detection of the unlicensed channel is determined according to a preset field of the MAC signaling or RRC signaling.

[0027] or

[0028] In response to receiving MAC signaling or RRC signaling, the detection mode for LBT detection of the unlicensed channel is determined by switching from the second mode to the first mode based on the preset fields of the MAC signaling or RRC signaling.

[0029] According to a second aspect of the present disclosure, an access method for an unlicensed channel is provided, applied to a receiving device, comprising:

[0030] Send auxiliary information to the sending device so that the sending device can determine the detection method based on the auxiliary information;

[0031] The detection method described herein is a detection method for detecting access to unlicensed channels;

[0032] The detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining the receiving device performing LBT detection to obtain a second detection result.

[0033] In one embodiment, the assistance information includes enabling or terminating an assistance request.

[0034] In one embodiment, the auxiliary information is used to represent information about the HARQ-ACK feedback result.

[0035] In one embodiment, the method includes:

[0036] Perform idle channel detection to obtain the second detection result;

[0037] Based on the second detection result and the second threshold value, auxiliary information is determined.

[0038] According to a third aspect of the present disclosure, an access device for an unlicensed channel is provided, applied to a transmitting device, comprising:

[0039] The determination module is configured to determine the detection method for Listen-Before-Speak (LBT) detection on the unlicensed channel, the detection method including a first method or a second method; wherein, the first method includes the transmitting device performing LBT detection to obtain a first detection result; the second method includes the transmitting device performing LBT detection to obtain the first detection result, and obtaining a second detection result of the receiving device performing LBT detection;

[0040] The detection module is configured to detect unlicensed channels according to a determined detection method.

[0041] According to a fourth aspect of the present disclosure, an access device for an unlicensed channel is provided, applied to a receiving device, comprising:

[0042] The sending module is configured to send auxiliary information to the sending device so that the sending device can determine the detection method based on the auxiliary information.

[0043] The detection method described herein is a detection method for detecting access to unlicensed channels;

[0044] The detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining the receiving device performing LBT detection to obtain a second detection result.

[0045] According to a fifth aspect of the present disclosure, a transmitting device is provided, comprising:

[0046] processor;

[0047] Memory used to store processor-executable instructions;

[0048] The processor is configured to execute executable instructions in the memory to implement the steps of the unlicensed channel access method.

[0049] According to a sixth aspect of the present disclosure, a receiving device is provided, comprising:

[0050] processor;

[0051] Memory used to store processor-executable instructions;

[0052] The processor is configured to execute executable instructions in the memory to implement the steps of the unlicensed channel access method.

[0053] According to a seventh aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which executable instructions are stored, which, when executed by a processor, implement the steps of the unlicensed channel access method.

[0054] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: the transmitting device can use different methods to detect unlicensed channels, that is, it can use either a first method or a second method to detect unlicensed channels. When using the first method, the transmitting device can save signaling overhead; when using the second method, it can improve the detection accuracy of interference levels. By switching between the two detection methods, the transmitting device can use different detection methods in different application scenarios to meet different detection requirements.

[0055] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0056] The accompanying drawings, which are included to provide a further understanding of the embodiments of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and, together with their descriptions, serve to explain the embodiments of this disclosure and do not constitute an improper limitation of the embodiments of this disclosure. In the drawings:

[0057] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0058] Figure 1 This is a flowchart illustrating an unlicensed channel access method according to an exemplary embodiment;

[0059] Figure 2 This is a flowchart illustrating an unlicensed channel access method according to an exemplary embodiment;

[0060] Figure 3 This is a flowchart illustrating an unlicensed channel access method according to an exemplary embodiment;

[0061] Figure 4 This is a structural diagram illustrating an access device for an unlicensed channel according to an exemplary embodiment;

[0062] Figure 5 This is a structural diagram illustrating an access device for an unlicensed channel according to an exemplary embodiment;

[0063] Figure 6 This is a structural diagram illustrating an access device for an unlicensed channel according to an exemplary embodiment;

[0064] Figure 7 This is a structural diagram illustrating an access device for an unlicensed channel according to an exemplary embodiment. Detailed Implementation

[0065] The embodiments of this disclosure will now be further described in conjunction with the accompanying drawings and specific implementation details.

[0066] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0067] In some possible scenarios: the transmitter performs LBT detection on the unlicensed channel, and the detection result indicates low channel interference, allowing data to be transmitted on the unlicensed channel. However, the receiver experiences significant channel interference, and after receiving the data, it cannot correctly demodulate the received data.

[0068] Therefore, a receiver-assisted detection method is proposed, specifically: the transmitter performs LBT detection on the unlicensed channel to obtain a first detection result; the receiver performs LBT detection on the unlicensed channel to obtain a second detection result; and the receiver sends the second detection result to the transmitter. After receiving the second detection result, the transmitter performs a comprehensive evaluation based on the first and second detection results, and determines whether to access the unlicensed channel based on the comprehensive evaluation result. If access is granted, data is transmitted through the unlicensed channel.

[0069] By employing a receiver-assisted detection method, it is possible to detect in advance situations where the interference level of the unlicensed channel detected by the receiver is inconsistent with the interference level of the unlicensed channel detected by the transmitter's LBT.

[0070] The sender-side detection method has lower signaling overhead but lower accuracy in detecting interference levels, while the receiver-assisted detection method has higher signaling overhead but higher accuracy in detecting interference levels. Therefore, there is a need to switch between the two detection methods.

[0071] This disclosure provides an access method for an unlicensed channel, applied to a transmitting device. This transmitting device can be a base station or a user equipment. (Refer to...) Figure 1 , Figure 1 This is a flowchart illustrating an unlicensed channel access method according to an exemplary embodiment, such as... Figure 1 As shown, this method includes:

[0072] Step S11: Determine the detection method for Listen-Before-Speak (LBT) detection on the unlicensed channel. The detection method includes a first method or a second method. The first method includes the sending device performing LBT detection to obtain a first detection result. The second method includes the sending device performing LBT detection to obtain the first detection result and obtaining the second detection result of the receiving device performing LBT detection.

[0073] Step S12: Detect the unlicensed channel according to the determined detection method.

[0074] In one embodiment, the first method can be exemplarily referred to as a sender-side detection method, and the second method can be exemplarily referred to as a receiver-assisted detection method.

[0075] In this embodiment, the transmitting device can use different methods to detect the unlicensed channel; that is, it can use either the first method or the second method. Each method has its advantages. For example, using the first method can save signaling overhead, while using the second method can improve the detection accuracy of the interference level. Switching between the two detection methods allows the transmitting device to use different methods in different application scenarios, meeting diverse detection requirements.

[0076] This disclosure provides an access method for an unlicensed channel, applied to a transmitting device. This transmitting device can be a base station or a user equipment. (Refer to...) Figure 2 , Figure 2 This is a flowchart illustrating an unlicensed channel access method according to an exemplary embodiment, such as... Figure 2 As shown, this method includes:

[0077] Step S11: Determine the detection method for Listen-Before-Speak (LBT) detection on the unlicensed channel. The detection method includes a first method or a second method. The first method includes the sending device performing LBT detection to obtain a first detection result. The second method includes the sending device performing LBT detection to obtain the first detection result and obtaining the second detection result of the receiving device performing LBT detection.

[0078] Step S12: Detect the unlicensed channel according to the determined detection method.

[0079] Step S13: Determine whether to access the unlicensed channel based on the detection results of the unlicensed channel.

[0080] Step S13 includes any of the following modes:

[0081] Determine access to the unlicensed channel based on the detection results of the unlicensed channel.

[0082] Based on the detection results of unlicensed channels, it is determined that access to unlicensed channels will not be granted.

[0083] In one example, access to the unlicensed channel is determined in response to the interference level corresponding to the detection result of the unlicensed channel being less than or equal to a first threshold; access to the unlicensed channel is determined not to be granted in response to the interference level corresponding to the detection result of the unlicensed channel being greater than or equal to the first threshold.

[0084] In one embodiment, the first method can be exemplarily referred to as a sender-side detection method, and the second method can be exemplarily referred to as a receiver-assisted detection method.

[0085] In this embodiment, the transmitting device can use different methods to detect unlicensed channels; that is, it can use either a first method or a second method. Each method has its advantages. For example, using the first method can save signaling overhead, while using the second method can improve the accuracy of interference level detection. By switching between the two detection methods, the transmitting device can use different methods in different application scenarios to determine whether access to the unlicensed channel is permitted.

[0086] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0087] The detection method is determined based on the feedback result of the Hybrid Automatic Repeat request-ACK (HARQ-ACK) from the receiving device.

[0088] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the embodiment shown, step S11, determining the detection method for LBT detection of the unlicensed channel, includes: determining the detection method based on the feedback result of the Hybrid Automatic Repeat request-ACK (HARQ-ACK) from the receiving device.

[0089] In this embodiment, the HARQ-ACK feedback result of the receiving device is used as a reference parameter to determine the detection method. If the HARQ-ACK feedback result of the receiving device indicates that the interference level of the unlicensed channel of the receiving device is large, the second method is adopted. If the HARQ-ACK feedback result of the receiving device indicates that the interference level of the unlicensed channel of the receiving device is small, the first method is adopted.

[0090] In one embodiment, the method further includes: receiving configuration signaling, the configuration signaling including at least one of the following parameters:

[0091] Information used to indicate the first time interval

[0092] Information used to indicate the first threshold value.

[0093] In one example, the detection method is determined based on the HARQ-ACK feedback result of the receiving device, including: in response to the proportion of NACKs received within a first time interval being greater than or equal to a first threshold value, determining to use a second method to perform LBT detection on the unlicensed channel.

[0094] In one example, the detection method is determined based on the HARQ-ACK feedback result of the receiving device, including: in response to the proportion of NACKs received within a first time interval being less than or equal to a first threshold value, determining to use a first method to perform LBT detection on the unlicensed channel.

[0095] In one example, the first time interval could be 1000 milliseconds.

[0096] In one example, the first threshold value could be 30%.

[0097] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0098] In response to receiving the auxiliary activation request from the receiving device, it is determined that the second method is used to perform LBT detection on the unlicensed channel;

[0099] Unlicensed channels are detected according to the determined detection method.

[0100] In one embodiment, the receiving device performs an idle channel detection to obtain a second detection result; based on the second detection result and a second threshold value, it determines whether to send an enable assistance request. In one example, an enable assistance request is sent in response to the second detection result being greater than or equal to the second threshold value. In another example, an enable assistance request is not sent in response to the second detection result being less than or equal to the second threshold value.

[0101] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the embodiment shown, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving the receiving device's request to enable assistance, determining to use a second method to perform LBT detection on the unlicensed channel.

[0102] In this embodiment, the receiving device determines whether to actively send an enable assistance request based on the idle channel detection result. After receiving the enable assistance request, the sending device determines to use the second method to perform LBT detection on the unlicensed channel. The sending device selects the second method according to the instruction of the receiving device, so that the operation of selecting the second method is consistent with the channel interference situation of the receiving device.

[0103] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0104] In response to receiving a termination assistance request sent by the receiving device, it is determined that the unlicensed channel will be subjected to LBT detection using the first method;

[0105] Unlicensed channels are detected according to the determined detection method.

[0106] In one embodiment, the receiving device performs an idle channel detection to obtain a second detection result; based on the second detection result and a second threshold value, it determines to send a termination assistance request. In one example, a termination assistance request is sent when the second detection result is less than or equal to the second threshold value.

[0107] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the embodiment shown, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving a termination assistance request sent by the receiving device, determining to use a first method to perform LBT detection on the unlicensed channel.

[0108] In this embodiment, the receiving device determines whether to actively send a termination assistance request based on the idle channel detection result. After receiving the termination assistance request, the sending device determines to perform LBT detection on the unlicensed channel using the first method. The sending device selects the first method according to the instruction of the receiving device, so that the operation of selecting the first method is consistent with the channel interference situation of the receiving device.

[0109] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0110] In response to receiving configuration signaling, determine the detection method for LBT detection of the unlicensed channel based on the configuration signaling;

[0111] Unlicensed channels are detected according to the determined detection method.

[0112] In one embodiment, the configuration signaling includes an indication field for indicating the selection of a first mode, and / or an indication field for indicating the selection of a second mode.

[0113] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the illustrated embodiment, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving configuration signaling, determining the detection method for LBT detection of the unlicensed channel according to the configuration signaling.

[0114] In this embodiment, configuration signaling is received from the receiving device, and the detection method for LBT detection of the unlicensed channel is determined based on the configuration signaling.

[0115] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0116] In response to receiving a Medium Access Layer (MAC) signaling or a Radio Resource Control (RRC) signaling, a detection method for performing LBT detection on the unlicensed channel using the second method is determined based on a preset field of the MAC or RRC signaling.

[0117] Unlicensed channels are detected according to the determined detection method.

[0118] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the illustrated embodiment, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving Medium Access Layer (MAC) signaling or Radio Resource Control (RRC) signaling, determining the detection method for LBT detection of the unlicensed channel using the second method based on a preset field of the MAC signaling or RRC signaling.

[0119] In this embodiment, the receiving device receives Medium Access Layer (MAC) signaling or Radio Resource Control (RRC) signaling and learns from the signaling an instruction to use the second method.

[0120] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0121] In response to receiving MAC signaling or RRC signaling, the detection mode for LBT detection of the unlicensed channel is determined by switching from the first mode to the second mode based on the preset fields of the MAC signaling or RRC signaling.

[0122] Unlicensed channels are detected according to the determined detection method.

[0123] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the illustrated embodiment, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving MAC signaling or RRC signaling, determining, based on a preset field of the MAC signaling or RRC signaling, to switch from the first method to the second method for LBT detection of the unlicensed channel.

[0124] In this embodiment, the receiving device receives Media Access Layer (MAC) signaling or Radio Resource Control (RRC) signaling and learns from the signaling an indication to switch from the first mode to the second mode.

[0125] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0126] In response to receiving MAC signaling or RRC signaling, a detection method for LBT detection of the unlicensed channel is determined according to a preset field of the MAC signaling or RRC signaling.

[0127] Unlicensed channels are detected according to the determined detection method.

[0128] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the illustrated embodiment, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving MAC signaling or RRC signaling, determining the detection method for LBT detection of the unlicensed channel using the first method based on a preset field of the MAC signaling or RRC signaling.

[0129] In this embodiment, the receiving device receives Medium Access Layer (MAC) signaling or Radio Resource Control (RRC) signaling and learns from the signaling an instruction to use the first method.

[0130] This disclosure provides an access method for an unlicensed channel, which is applied to a transmitting device. The transmitting device can be a base station or a user equipment. The method includes:

[0131] In response to receiving MAC signaling or RRC signaling, the detection mode for LBT detection of the unlicensed channel is determined by switching from the second mode to the first mode based on a preset field of the MAC signaling or RRC signaling.

[0132] Unlicensed channels are detected according to the determined detection method.

[0133] In one embodiment, the foregoing can be considered as follows: Figure 1 or Figure 2 In the illustrated embodiment, determining the detection method for LBT detection of the unlicensed channel in step S11 includes: in response to receiving MAC signaling or RRC signaling, determining the detection method for LBT detection of the unlicensed channel by switching from the second method to the first method based on a preset field of the MAC signaling or RRC signaling.

[0134] In this embodiment, the receiving device receives Media Access Layer (MAC) signaling or Radio Resource Control (RRC) signaling and learns from the signaling an indication to switch from the second mode to the first mode.

[0135] This disclosure provides an access method for an unlicensed channel, applied to a receiving device. This receiving device can be a base station device or a user equipment. (Refer to...) Figure 3 , Figure 3 This is a flowchart illustrating an unlicensed channel access method according to an exemplary embodiment, such as... Figure 3 As shown, this method includes:

[0136] Step S31: Send auxiliary information to the sending device so that the sending device can determine the detection method based on the auxiliary information;

[0137] The detection method described herein is a detection method for detecting access to unlicensed channels;

[0138] The detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining the receiving device performing LBT detection to obtain a second detection result.

[0139] In this embodiment, the receiving device sends auxiliary information to the sending device, enabling the sending device to determine the detection method based on the auxiliary information. This allows the sending device to use different methods to detect the unlicensed channel; that is, it can use either a first method or a second method. Each method has its advantages. For example, using the first method can save signaling overhead, while using the second method can improve the detection accuracy of the interference level. The sending device can switch between the two detection methods to use different methods in different application scenarios and meet different detection requirements.

[0140] This disclosure provides an access method for an unlicensed channel, which is applied to a receiving device. The receiving device can be a base station or a user equipment. The method includes:

[0141] Auxiliary information is sent to the sending device to enable the sending device to determine the detection method based on the auxiliary information; wherein the auxiliary information includes an enable request to enable the sending device to determine that the second method is used to perform LBT detection on the unlicensed channel.

[0142] The second method includes the sending device performing LBT detection to obtain a first detection result, and obtaining the receiving device performing LBT detection to obtain a second detection result.

[0143] In one example, the receiving device performs an idle channel detection to obtain a second detection result; based on the second detection result and a second threshold value, it determines whether to send an enable assistance request. In one example, an enable assistance request is sent in response to the second detection result being greater than or equal to the threshold value. In another example, an enable assistance request is sent in response to the second detection result being less than or equal to the threshold value.

[0144] In this embodiment, the receiving device determines whether to actively send an enable assistance request based on the idle channel detection result. After receiving the enable assistance request, the sending device determines to use the second method to perform LBT detection on the unlicensed channel. The sending device selects the second method according to the instruction of the receiving device, so that the operation of selecting the second method is consistent with the channel interference situation of the receiving device.

[0145] This disclosure provides an access method for an unlicensed channel, which is applied to a receiving device. The receiving device can be a base station or a user equipment. The method includes:

[0146] Auxiliary information is sent to the sending device to enable the sending device to determine the detection method based on the auxiliary information; wherein the auxiliary information includes a termination of auxiliary request to enable the sending device to determine to use the first method to perform LBT detection on the unlicensed channel.

[0147] The first method includes the sending device performing LBT detection to obtain a first detection result.

[0148] In one embodiment, the receiving device performs an idle channel detection to obtain a second detection result; based on the second detection result and a second threshold value, it determines whether to send a termination assistance request. In one example, a termination assistance request is sent when the second detection result is less than or equal to the threshold value. In another example, a termination assistance request is sent when the second detection result is greater than or equal to the threshold value.

[0149] In this embodiment, the receiving device determines whether to actively send a termination assistance request based on the idle channel detection result. After receiving the termination assistance request, the sending device determines to use the first method to perform LBT detection on the unlicensed channel. The sending device selects the first method according to the instruction of the receiving device, so that the operation of selecting the first method is consistent with the channel interference situation of the receiving device.

[0150] This disclosure provides an access method for an unlicensed channel, which is applied to a receiving device. The receiving device can be a base station or a user equipment. The method includes... Figure 3 The method shown, and:

[0151] The auxiliary information is used to represent the HARQ-ACK feedback results.

[0152] In the embodiments disclosed herein, the two embodiments described above can be used together, individually, or in combination. For example, the second method is used when sending an enable assistance request; the first method is used when sending a terminate assistance request. This scheme can be exemplary used in the following scenario: switching between two LBT methods. When the two embodiments are used individually, they can be exemplary used in the following scenario: directly helping the receiver determine the initial LBT method in the initial stage.

[0153] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device can be a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments.

[0154] Reference Figure 4 , Figure 4 This is a structural diagram illustrating an access device for an unlicensed channel according to an exemplary embodiment, such as... Figure 4 As shown, this device includes:

[0155] The first determining module 401 is configured to determine a detection method for listening-before-telling (LBT) detection on an unlicensed channel, wherein the detection method includes a first method or a second method; wherein the first method includes the transmitting device performing LBT detection to obtain a first detection result; and the second method includes the transmitting device performing LBT detection to obtain the first detection result and obtaining a second detection result of the receiving device performing LBT detection.

[0156] The detection module 402 is configured to detect unlicensed channels according to a determined detection method.

[0157] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 4 The apparatus shown, and:

[0158] The first determining module 401 is configured to determine the detection method for LBT detection of the unlicensed channel using the following method:

[0159] The detection method is determined based on the HARQ-ACK feedback results from the receiving device.

[0160] In one embodiment, determining the detection method based on the HARQ-ACK feedback result of the receiving device includes:

[0161] If the proportion of NACKs received within the first time interval is greater than or equal to a threshold value, it is determined that the second method will be used to perform LBT detection on the unlicensed channel.

[0162] In one embodiment, determining the detection method based on the HARQ-ACK feedback result of the receiving device includes:

[0163] If the proportion of NACKs received within a first time interval is less than or equal to a threshold value, it is determined that the first method should be used to perform LBT detection on the unlicensed channel.

[0164] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 4 The apparatus shown, and:

[0165] The first determining module 401 is configured to determine the detection method for LBT detection of the unlicensed channel using the following method:

[0166] In response to receiving the auxiliary activation request from the receiving device, it is determined that the second method will be used to perform LBT detection on the unlicensed channel.

[0167] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 4 The apparatus shown, and:

[0168] The first determining module 401 is configured to determine the detection method for LBT detection of the unlicensed channel using the following method:

[0169] In response to receiving a termination assistance request from the receiving device, it is determined that the unlicensed channel will be subjected to LBT detection using a first method.

[0170] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 4 The apparatus shown, and:

[0171] The first determining module 401 is configured to determine the detection method for LBT detection of the unlicensed channel using the following method:

[0172] In response to receiving configuration signaling, the detection method for LBT detection of unlicensed channels is determined based on the configuration signaling.

[0173] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 4 The apparatus shown, and:

[0174] The first determining module 401 is configured to determine the detection method for LBT detection of the unlicensed channel using the following method:

[0175] In response to receiving a Medium Access Layer (MAC) signaling or a Radio Resource Control (RRC) signaling, a detection method for performing LBT detection on the unlicensed channel using the second method is determined based on a preset field of the MAC or RRC signaling.

[0176] or

[0177] In response to receiving MAC signaling or RRC signaling, the detection mode for LBT detection of the unlicensed channel is determined by switching from the first mode to the second mode based on the preset fields of the MAC signaling or RRC signaling.

[0178] This disclosure provides an access device for an unlicensed channel, which is applied to a transmitting device. This transmitting device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 4 The apparatus shown, and:

[0179] The first determining module 401 is configured to determine the detection method for LBT detection of the unlicensed channel using the following method:

[0180] In response to receiving MAC signaling or RRC signaling, a detection method for LBT detection of the unlicensed channel is determined according to a preset field of the MAC signaling or RRC signaling.

[0181] or

[0182] In response to receiving MAC signaling or RRC signaling, the detection mode for LBT detection of the unlicensed channel is determined by switching from the second mode to the first mode based on a preset field of the MAC signaling or RRC signaling.

[0183] This disclosure provides an access device for an unlicensed channel, which is applied to a receiving device. This receiving device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. See also... Figure 5 , Figure 5 This is a structural diagram illustrating an access device for an unlicensed channel according to an exemplary embodiment, such as... Figure 5 As shown, this device includes:

[0184] The sending module 501 sends auxiliary information to the sending device so that the sending device can determine the detection method based on the auxiliary information.

[0185] The detection method described herein is a detection method for detecting access to unlicensed channels;

[0186] The detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining the receiving device performing LBT detection to obtain a second detection result.

[0187] This disclosure provides an access device for an unlicensed channel, which is applied to a receiving device. This receiving device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 5 The apparatus shown, and:

[0188] The assistance information includes enabling or terminating the assistance request.

[0189] This disclosure provides an access device for an unlicensed channel, which is applied to a receiving device. This receiving device is either a base station device or a user equipment. The device includes... Figure 5 The apparatus shown, and:

[0190] The auxiliary information is used to represent the HARQ-ACK feedback results.

[0191] This disclosure provides an access device for an unlicensed channel, which is applied to a receiving device. This receiving device is either a base station device or a user equipment. This access device is used to perform any of the preceding method embodiments. The device includes... Figure 5 The apparatus shown also includes:

[0192] The detection module is configured to perform idle channel detection and obtain a second detection result;

[0193] The second determining module is configured to determine auxiliary information based on the second detection result and the second threshold value.

[0194] This disclosure provides a non-transitory computer-readable storage medium storing executable instructions that, when executed by a processor, implement the steps of accessing the unlicensed channel.

[0195] Figure 6 This is a block diagram illustrating an access device 600 for an unlicensed channel according to an exemplary embodiment. For example, device 600 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0196] Reference Figure 6 The device 600 may include one or more of the following components: a processing component 602, a memory 604, a power supply component 606, a multimedia component 608, an audio component 610, an input / output (I / O) interface 612, a sensor component 614, and a communication component 616.

[0197] Processing component 602 typically controls the overall operation of device 600, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 602 may include one or more modules to facilitate interaction between processing component 602 and other components. For example, processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.

[0198] Memory 604 is configured to store various types of data to support the operation of device 600. Examples of this data include instructions for any application or method operating on device 600, contact data, phonebook data, messages, pictures, videos, etc. Memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, 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 storage, flash memory, magnetic disk, or optical disk.

[0199] Power supply component 606 provides power to the various components of device 600. Power supply component 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 600.

[0200] Multimedia component 608 includes a screen that provides an output interface between the device 600 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 touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 608 includes a front-facing camera and / or a rear-facing camera. When the device 600 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0201] Audio component 610 is configured to output and / or input audio signals. For example, audio component 610 includes a microphone (MIC) configured to receive external audio signals when device 600 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 604 or transmitted via communication component 616. In some embodiments, audio component 610 also includes a speaker for outputting audio signals.

[0202] I / O interface 612 provides an interface between processing component 602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0203] Sensor assembly 614 includes one or more sensors for providing status assessments of various aspects of device 600. For example, sensor assembly 614 may detect the on / off state of device 600, the relative positioning of components such as the display and keypad of device 600, changes in the position of device 600 or a component of device 600, the presence or absence of user contact with device 600, the orientation or acceleration / deceleration of device 600, and temperature changes of device 600. Sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 614 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0204] Communication component 616 is configured to facilitate wired or wireless communication between device 600 and other devices. Device 600 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 616 also includes a near-field communication (NFC) module to facilitate short-range communication. 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.

[0205] In an exemplary embodiment, the apparatus 600 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, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0206] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 604 including instructions, which can be executed by a processor 620 of the device 600 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0207] Figure 7 This is a block diagram illustrating an access device 700 for an unlicensed channel according to an exemplary embodiment. For example, device 700 may be provided as a base station. (Refer to...) Figure 7The apparatus 700 includes a processing component 722, which further includes one or more processors, and memory resources represented by memory 732 for storing instructions, such as application programs, that can be executed by the processing component 722. The application programs stored in memory 732 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 722 is configured to execute instructions to perform the aforementioned unlicensed channel access method.

[0208] Device 700 may also include a power supply component 726 configured to perform power management of device 700, a wired or wireless network interface 750 configured to connect device 700 to a network, and an input / output (I / O) interface 759. Device 700 can operate on an operating system stored in memory 732, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0209] Other embodiments of the present disclosure will readily occur to those skilled in the art upon 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 present disclosure that follow the general principles of the embodiments of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of the present disclosure are indicated by the following claims.

[0210] It should be understood that the embodiments disclosed herein are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments disclosed herein is limited only by the appended claims.

Claims

1. A method for accessing an unlicensed channel, applied to a transmitting device, comprising: The detection method for Listen-Before-Speak (LBT) detection on unlicensed channels is determined, and the detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining a second detection result of LBT detection performed by the receiving device; The method for determining the LBT detection method for unlicensed channels includes: The detection method is determined based on the HARQ-ACK feedback result of the receiving device. If the proportion of NACKs received within the first time interval is greater than or equal to a threshold value, it is determined that the second method is used to perform LBT detection on the unlicensed channel; or, if the proportion of NACKs received within the first time interval is less than or equal to a threshold value, it is determined that the first method is used to perform LBT detection on the unlicensed channel. In response to receiving an enable assistance request from the receiving device, determine to perform LBT detection on the unlicensed channel using the second method; or, in response to receiving a terminate assistance request from the receiving device, determine to perform LBT detection on the unlicensed channel using the first method. In response to receiving configuration signaling, a detection method for performing LBT detection on the unlicensed channel is determined according to the configuration signaling, wherein the configuration signaling includes an indication field for indicating the selection of the first method, and / or an indication field for indicating the selection of the second method; In response to receiving a Medium Access Layer (MAC) signaling or a Radio Resource Control (RRC) signaling, a detection method for performing LBT detection on an unlicensed channel is determined according to a preset field of the MAC or RRC signaling; or in response to receiving a MAC or RRC signaling, a detection method for performing LBT detection on an unlicensed channel is determined according to a preset field of the MAC or RRC signaling, switching from a first method to a second method. Detection of unlicensed channels is performed according to the determined detection method; If the interference level corresponding to the detection result of the unlicensed channel is less than or equal to a first threshold, it is determined that access to the unlicensed channel is made; if the interference level corresponding to the detection result of the unlicensed channel is greater than or equal to the first threshold, it is determined that access to the unlicensed channel is not made.

2. A method for accessing an unlicensed channel, applied to a receiving device, comprising: When the receiving device sends auxiliary information to the sending device, the sending device determines a detection method based on the auxiliary information; wherein, the detection method is a detection method for detecting access to an unlicensed channel; the detection method includes a first method or a second method; wherein, the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result, and obtaining a second detection result of LBT detection performed by the receiving device; The assistance information includes enabling an assistance request or terminating an assistance request. If the assistance information is enabling an assistance request, it is determined that the second method will be used to perform LBT detection on the unlicensed channel; or, if the assistance information is terminating an assistance request, it is determined that the first method will be used to perform LBT detection on the unlicensed channel. The auxiliary information is used to represent the information of HARQ-ACK feedback results; the sending device is used to determine to use the second method to perform LBT detection on the unlicensed channel based on the proportion of NACKs received within the first time interval being greater than or equal to a threshold value, and to determine to use the first method to perform LBT detection on the unlicensed channel based on the proportion of NACKs received within the first time interval being less than or equal to a threshold value. When the receiving device sends configuration signaling to the sending device, the sending device is used to determine the detection method for LBT detection of the unlicensed channel according to the configuration signaling, wherein the configuration signaling includes an indication field for indicating the selection of the first method, and / or an indication field for indicating the selection of the second method; When the receiving device sends MAC signaling or Radio Resource Control (RRC) signaling to the sending device, the sending device is used to determine, based on a preset field of the MAC signaling or RRC signaling, the detection method for performing LBT detection on the unlicensed channel using the second method; or to determine, based on a preset field of the MAC signaling or RRC signaling, the detection method for performing LBT detection on the unlicensed channel by switching from the first method to the second method. The detection method determined by the sender is used to detect unlicensed channels. If the interference level corresponding to the detection result of the unlicensed channel is less than or equal to a first threshold value, it is determined that the unlicensed channel will be accessed; if the interference level corresponding to the detection result of the unlicensed channel is greater than or equal to the first threshold value, it is determined that the unlicensed channel will not be accessed.

3. The method for accessing an unlicensed channel as described in claim 2, wherein, The method includes: Perform idle channel detection to obtain the second detection result; Based on the second detection result and the second threshold value, auxiliary information is determined.

4. An access device for an unlicensed channel, applied to a transmitting device, comprising: The determination module is configured to determine the detection method for Listen-Before-Speak (LBT) detection on the unlicensed channel, the detection method including a first method or a second method; wherein, the first method includes the transmitting device performing LBT detection to obtain a first detection result; the second method includes the transmitting device performing LBT detection to obtain the first detection result, and obtaining a second detection result of the receiving device performing LBT detection; The device is also used to: determine the detection method based on the HARQ-ACK feedback result of the receiving device; The apparatus is further configured to: determine to perform LBT detection on the unlicensed channel using a second method in response to the proportion of NACKs received within a first time interval being greater than or equal to a threshold value; or, determine to perform LBT detection on the unlicensed channel using a first method in response to the proportion of NACKs received within a first time interval being less than or equal to a threshold value. In response to receiving an enable assistance request from the receiving device, determine to perform LBT detection on the unlicensed channel using the second method; or, in response to receiving a terminate assistance request from the receiving device, determine to perform LBT detection on the unlicensed channel using the first method. In response to receiving configuration signaling, a detection method for performing LBT detection on the unlicensed channel is determined according to the configuration signaling, wherein the configuration signaling includes an indication field for indicating the selection of the first method, and / or an indication field for indicating the selection of the second method; In response to receiving a Medium Access Layer (MAC) signaling or a Radio Resource Control (RRC) signaling, a detection method for performing LBT detection on an unlicensed channel is determined according to a preset field of the MAC or RRC signaling; or in response to receiving a MAC or RRC signaling, a detection method for performing LBT detection on an unlicensed channel is determined according to a preset field of the MAC or RRC signaling, switching from a first method to a second method. The detection module is configured to detect unlicensed channels according to a determined detection method; The apparatus is further configured to: determine access to the unlicensed channel in response to the interference level corresponding to the detection result of the unlicensed channel being less than or equal to a first threshold; and determine not to access the unlicensed channel in response to the interference level corresponding to the detection result of the unlicensed channel being greater than or equal to the first threshold.

5. An access device for an unlicensed channel, applied to a receiving device, comprising: The sending module is configured such that when the receiving device sends auxiliary information to the sending device, the sending device determines a detection method based on the auxiliary information; wherein the detection method is a detection method for detecting access to an unlicensed channel; the detection method includes a first method or a second method; wherein the first method includes the sending device performing LBT detection to obtain a first detection result; the second method includes the sending device performing LBT detection to obtain the first detection result and obtaining a second detection result of LBT detection performed by the receiving device; The assistance information includes enabling an assistance request or terminating an assistance request; if the assistance information is enabling an assistance request, it is determined that the second method is used to perform LBT detection on the unlicensed channel; or, if the assistance information is terminating an assistance request, it is determined that the first method is used to perform LBT detection on the unlicensed channel. The auxiliary information is used to represent the HARQ-ACK feedback result. The sending device is used to determine whether to use the second method to perform LBT detection on the unlicensed channel based on whether the proportion of NACKs received within the first time interval is greater than or equal to a threshold value; or, if the proportion of NACKs received within the first time interval is less than or equal to a threshold value, determine whether to use the first method to perform LBT detection on the unlicensed channel. When the receiving device sends configuration signaling to the sending device, the sending device is used to determine the detection method for LBT detection of the unlicensed channel according to the configuration signaling, wherein the configuration signaling includes an indication field for indicating the selection of the first method, and / or an indication field for indicating the selection of the second method; When the receiving device sends MAC signaling or Radio Resource Control (RRC) signaling to the sending device, the sending device is used to determine, based on a preset field of the MAC signaling or RRC signaling, the detection method for performing LBT detection on the unlicensed channel using the second method; or to determine, based on a preset field of the MAC signaling or RRC signaling, the detection method for performing LBT detection on the unlicensed channel by switching from the first method to the second method. The detection method determined by the sender is used to detect unlicensed channels. If the interference level corresponding to the detection result of the unlicensed channel is less than or equal to a first threshold value, it is determined that the unlicensed channel will be accessed; if the interference level corresponding to the detection result of the unlicensed channel is greater than or equal to the first threshold value, it is determined that the unlicensed channel will not be accessed.

6. A transmitting device, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the unlicensed channel access method of claim 1.

7. A receiving device, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the unlicensed channel access method as described in claim 2 or 3.

8. A non-transitory computer-readable storage medium having stored executable instructions thereon, which, when executed by a processor, implement the steps of the unlicensed channel access method of claim 1 or the unlicensed channel access method of claim 2 or 3.

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