Channel detection method and device

Abstract

The embodiments of the present disclosure disclose a channel detection method and device, which can be applied to the field of communication technology. The method performed by the base station includes: in response to determining that the interference caused by the downlink transmission to the interfered cell of the interfered base station meets the preset condition, determining to perform channel detection before downlink transmission to the terminal device. In this way, efficient channel detection can be achieved, and according to the channel detection result obtained by performing the channel detection, the downlink transmission can be controlled, interference can be avoided, and the performance of the system can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a channel detection method and device. Background Art

[0002] In a TDD (Time Division Duplexing) system, the TDD configurations of adjacent cells maintain a consistent transmission direction, which prevents serious cross-interference.

[0003] In the related art, in order to better adapt to the transmission of services, a solution is proposed for the base station to dynamically adjust the TDD configuration. In this case, the cross interference problem between uplink and downlink transmissions between different cells needs to be solved.

[0004] Furthermore, for dynamic TDD, co-channel interference is generally caused by deployment within the same operator. Therefore, how to perform efficient channel detection is an issue that needs to be addressed urgently. Summary of the invention

[0005] The embodiments of the present disclosure provide a channel detection method and device, which can realize efficient channel detection and control downlink transmission according to the channel detection result obtained by performing channel detection, thereby avoiding interference and improving system performance.

[0006] In a first aspect, an embodiment of the present disclosure provides a channel detection method, which is executed by a base station. The method includes: in response to determining that interference caused by downlink transmission to an interfering cell meets a preset condition, determining to perform channel detection before performing downlink transmission to a terminal device.

[0007] In this technical solution, in response to determining that the interference caused by downlink transmission to the interfering cell meets the preset conditions, the base station determines to perform channel detection before downlink transmission to the terminal device. In this way, efficient channel detection can be achieved, and the downlink transmission can be controlled according to the channel detection result obtained by performing channel detection, which can avoid interference and improve the performance of the system.

[0008] In a second aspect, an embodiment of the present disclosure provides another channel detection method, which is executed by a terminal device, and the method includes: receiving indication information sent by a base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station based on the auxiliary information of the interfered base station corresponding to the interfering cell when it is determined that the interference caused by the downlink transmission to the interfering cell meets the preset conditions; according to the indication information, canceling the uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

[0009] In a third aspect, an embodiment of the present disclosure provides another channel detection method, which is executed by a terminal device. The method includes: in response to determining that the interference caused by the uplink transmission to the interfered terminal device meets a preset condition, determining to perform channel detection before performing uplink transmission to the base station.

[0010] In a fourth aspect, an embodiment of the present disclosure provides a communication device, which has some or all of the functions of the base station in the method described in the first aspect above. For example, the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0011] In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may also include a storage module, which is used to couple with the transceiver module and the processing module, and store the computer programs and data necessary for the communication device.

[0012] In one implementation, the communication apparatus includes: a processing module configured to, in response to determining that interference caused by downlink transmission to an interfering cell satisfies a first condition, determine to perform channel detection before performing downlink transmission to a terminal device.

[0013] In a fifth aspect, an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the terminal device in the method example described in the second aspect above, such as the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0014] In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may also include a storage module, which is used to couple with the transceiver module and the processing module, and store the computer programs and data necessary for the communication device.

[0015] In one implementation, the communication device includes: a transceiver module, configured to receive indication information sent by a base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station based on the auxiliary information of the interfered base station corresponding to the interfering cell when it is determined that the interference caused by the downlink transmission to the interfering cell meets the first condition; the processing module is also configured to cancel the uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information according to the indication information.

[0016] In a sixth aspect, an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the terminal device in the method example described in the third aspect above, such as the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0017] In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may also include a storage module, which is used to couple with the transceiver module and the processing module, and store the computer programs and data necessary for the communication device.

[0018] In one implementation, the communication device includes: a processing module configured to determine to perform channel detection before uplink transmission to the base station in response to determining that interference caused by uplink transmission to the interfered terminal device meets a second condition.

[0019] In a seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the first aspect is executed.

[0020] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the second aspect is executed.

[0021] In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the third aspect is executed.

[0022] In a tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

[0023] In the eleventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

[0024] In the twelfth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the third aspect above.

[0025] In a thirteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.

[0026] In a fourteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

[0027] In a fifteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the third aspect above.

[0028] In the sixteenth aspect, an embodiment of the present disclosure provides a channel detection system, which includes the communication device described in the fourth aspect, the communication device described in the fifth aspect, and the communication device described in the sixth aspect, or the system includes the communication device described in the seventh aspect, the communication device described in the eighth aspect, and the communication device described in the ninth aspect, or the system includes the communication device described in the tenth aspect, the communication device described in the eleventh aspect, and the communication device described in the twelfth aspect, or the system includes the communication device described in the thirteenth aspect, the communication device described in the fourteenth aspect, and the communication device described in the fifteenth aspect.

[0029] In the seventeenth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions for the above-mentioned base station. When the instructions are executed, the base station executes the method described in the first aspect.

[0030] In an eighteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the above-mentioned second aspect.

[0031] In the nineteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the third aspect.

[0032] In a twentieth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

[0033] In a twenty-first aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above.

[0034] In the twenty-second aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the third aspect above.

[0035] In a twenty-third aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting the base station to implement the functions involved in the first aspect, for example, determining or processing at least one of the data and information involved in the above method. In one possible design, the chip system also includes a memory, which is used to store computer programs and data necessary for the base station. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0036] In a twenty-fourth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a terminal device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method. In a possible design, the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0037] In the twenty-fifth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a terminal device to implement the functions involved in the third aspect, for example, determining or processing at least one of the data and information involved in the above method. In one possible design, the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0038] In a twenty-sixth aspect, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the first aspect.

[0039] In a twenty-seventh aspect, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect.

[0040] In a twenty-eighth aspect, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

[0042] Figure 1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

[0043] Figure 2 is a schematic diagram of co-channel interference between base stations and co-channel interference between terminal devices provided by an embodiment of the present disclosure;

[0044] Figure 3 is a flow chart of a channel detection method provided by an embodiment of the present disclosure;

[0045] Figure 4 is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0046] Figure 5 is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0047] Figure 6 is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0048] Figure 7 is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0049] Figure 8is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0050] Fig. 9 is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0051] Fig.10 is a flow chart of another channel detection method provided by an embodiment of the present disclosure;

[0052] Fig.11 is a structural diagram of a communication device provided by an embodiment of the present disclosure;

[0053] Fig.12 is a structural diagram of another communication device provided by an embodiment of the present disclosure;

[0054] Fig.13 It is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0055] In order to better understand a channel detection method and device disclosed in an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.

[0056] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. Unless otherwise indicated, when the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0057] The terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0058] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, for example, the word "if" used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0059] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this disclosure are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions.

[0060] See also Figure 1 , Figure 1 The following is a schematic diagram of the architecture of a communication system provided in an embodiment of the present disclosure. The communication system may include but is not limited to a base station and a terminal device. Figure 1 The number and form of the devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more base stations and two or more terminal devices may be included. Figure 1 The communication system 10 shown includes a base station 101 and a terminal device 102 as an example.

[0061] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long term evolution (LTE) system, fifth generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

[0062] The base station 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the base station 101 may be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the base station. The base station provided in the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the base station, such as the protocol layer of the base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0063] The terminal device 102 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device may be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), etc. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal device.

[0064] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0065] In addition, in order to facilitate understanding of the embodiments of the present disclosure, the following points are explained.

[0066] First, in the embodiments of the present disclosure, "used for indication" may include being used for direct indication and being used for indirect indication. When describing that a certain information is used for indicating A, it may include that the information directly indicates A or indirectly indicates A, but it does not mean that the information must carry A. For example, other messages that can determine A may be carried in the information.

[0067] The information indicated by the information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved by means of the arrangement order of each information agreed in advance (such as specified by the protocol), thereby reducing the indication overhead to a certain extent.

[0068] The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in this disclosure. Among them, the sending period and / or sending time of these sub-information can be predefined, for example, predefined according to a protocol.

[0069] Second, the first, second and various numerical numbers in the present disclosure are only used for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure. For example, to distinguish different conditions, etc.

[0070] Third, in the present disclosure, "pre-set" may include indication by base station signaling, or pre-defined, for example, protocol definition. Among them, "pre-defined" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a base station), and the present disclosure does not limit its specific implementation method.

[0071] Fourth, the “protocol” involved in the embodiments of the present disclosure may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present disclosure does not limit this.

[0072] Fifth, the embodiments of the present disclosure list multiple implementation methods to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art can understand that the multiple embodiments provided by the embodiments of the present disclosure can be executed separately, or can be executed together with the methods of other embodiments of the embodiments of the present disclosure, or can be executed together with some methods in other related technologies separately or in combination; the embodiments of the present disclosure do not limit this.

[0073] In order to better understand the technical solutions described in any embodiment of the present disclosure, first, the application scenarios in the related technologies are described:

[0074] In one embodiment, the enhancement of the full-duplex transmission mode is only for the base station side, while the terminal side still only supports the half-duplex transmission mode. The reason is that if transmission and reception are realized simultaneously on one carrier, the transmitting end and the receiving end need to be able to better suppress cross-slot interference and self-interference. For cross-slot interference, it can be measured, avoided and eliminated through a certain mechanism. For self-interference, the device needs to have a high transmit-receive isolation degree, so as to achieve a strong self-interference suppression capability. Generally speaking, the full-duplex transmission mode can bring about an increase in throughput, a reduction in transmission delay (especially uplink transmission) and an enhancement in uplink coverage. In order to achieve the above-mentioned purpose, it is necessary to schedule uplink transmission in the downlink area of ​​the time division duplexing (TDD, Time Division Duplexing) frequency band or the downlink spectrum of the frequency division duplexing (FDD, Frequency Division Duplex) frequency band. According to the relevant protocol, the terminal will not send uplink data in the downlink time slot. Therefore, the base station needs to indicate the frequency domain range that the terminal can use for uplink transmission in the downlink time slot. However, there is no clear method to indicate the resources used for uplink data transmission in the downlink time slot.

[0075] In one embodiment, data can be received and sent simultaneously in one time slot. In order to minimize the impact on terminal complexity and radio frequency, the research on duplex mode enhancement can be limited to the base station side, that is, full duplex is supported only on the base station side.

[0076] For example, Figure 2 , co-channel interference between base stations and co-channel interference between terminal devices are shown.

[0077] In some embodiments, there are mainly three full-duplex solutions on the base station side:

[0078] No overlapping sub-bands, that is, uplink and downlink data are transmitted on different sub-bands, and there is no overlap between sub-bands in the frequency domain;

[0079] Partially overlapping sub-bands, that is, uplink and downlink data are transmitted on different sub-bands, and there is partial overlap between the sub-bands in the frequency domain;

[0080] Co-spectrum full-duplex means that uplink and downlink data can be transmitted on completely overlapping frequency domain resources.

[0081] It is understandable that, since the degree of change of CLI (cross-link interference) is dynamic, the CLI measurement in the related art cannot respond to the actual interference environment. Channel access-based solutions are supported on unlicensed frequency bands. In the related art, the channel access solution is to ensure the coexistence of heterogeneous systems from the perspective of regulation.

[0082] Furthermore, for dynamic TDD, co-channel interference is generally caused by deployment within the same operator. Therefore, how to perform efficient channel detection is an issue that needs to be addressed urgently.

[0083] Based on this, a channel detection method is provided in an embodiment of the present disclosure to reduce mutual interference in transmissions between different nodes and improve system performance.

[0084] A channel detection method and device provided by the present disclosure are described in detail below with reference to the accompanying drawings.

[0085] See also Figure 3 , Figure 3 It is a flow chart of a channel detection method provided by an embodiment of the present disclosure.

[0086] like Figure 3 As shown, the method is executed by a base station, and the method may include but is not limited to the following steps:

[0087] S31: In response to determining that the interference caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition, determine to perform channel detection before performing downlink transmission to the terminal device.

[0088] In the embodiment of the present disclosure, when the base station determines that downlink transmission will cause interference to the interfered cell of the interfered base station and the interference meets the first condition, the base station determines to perform channel detection before performing downlink transmission to the terminal device.

[0089] The base station and the interfered base station are different base stations, the interfered base station is adjacent to the base station, or the cell corresponding to the interfered base station is adjacent to the cell corresponding to the base station.

[0090] The first condition may be determining that the downlink transmission will cause interference to the interfered cell of the interfered base station, or that the interference caused by the downlink transmission to the interfered cell of the interfered base station exceeds a predefined threshold.

[0091] It is understandable that, for interference scenarios between base stations, the base station may measure whether its downlink transmission will cause interference to other cells, so as to determine the interference caused to the interfered cell.

[0092] It is understandable that the base station determines to perform channel detection before performing downlink transmission to the terminal device, can obtain the channel detection result, and determine whether to perform downlink transmission to the terminal device based on the channel detection result.

[0093] Exemplarily, when the base station detects that the channel resources for downlink transmission are occupied, the downlink transmission to the terminal device may be canceled. Alternatively, when the base station detects that the channel resources for downlink transmission are not occupied, the downlink transmission to the terminal device may be performed.

[0094] Based on this, in the embodiment of the present disclosure, when the base station determines that the downlink transmission will cause interference to the interfered cell and the interference meets the first condition, it determines to perform channel detection before performing downlink transmission to the terminal device. Efficient channel detection can be achieved, and the downlink transmission can be controlled according to the channel detection result obtained by performing the channel detection, which can avoid interference and improve the performance of the system.

[0095] It can be understood that in the embodiments of the present disclosure, the base station performs channel detection before performing downlink transmission to the terminal device. It can perform channel detection on the channel resources used for downlink transmission, or it can also obtain auxiliary information for downlink transmission of the interfered base station corresponding to the interfered cell, and by comparing the auxiliary information for downlink transmission of the interfered base station with the channel resources used for downlink transmission by the base station, the channel resources that need to be channel detected are determined to achieve efficient channel detection.

[0096] In some embodiments, the base station performs channel detection before downlink transmission to the terminal device, and the method for performing channel detection includes: the base station determines auxiliary information of the interfered base station corresponding to the interfered cell; and determines configuration information for performing channel detection based on the auxiliary information.

[0097] It is understandable that the base station determines the auxiliary information of the interfered base station corresponding to the interfered cell, and can determine the relevant information of the interfered base station when performing channel access, such as: the time domain resources, frequency domain resources, etc. used by the interfered base station in downlink transmission.

[0098] Based on this, when the base station determines the auxiliary information of the interfered base station corresponding to the interfered cell, the base station can determine the configuration information for the base station to perform channel detection.

[0099] In the embodiment of the present disclosure, the base station may determine the auxiliary information of the interfered base station by itself or in other ways.

[0100] In some possible implementations, the base station determines the auxiliary information of the interfered base station by interactively performing channel access configuration with the interfered base station of the interfered cell to determine the auxiliary information of the interfered base station.

[0101] Based on this, the base station can determine the configuration information for performing channel detection based on the auxiliary information of the interfered base station. The configuration information includes one or more of the time domain configuration, frequency domain configuration, channel detection mechanism, and frequency domain unit for performing channel detection that the base station can determine to perform channel access. Thus, the base station can determine to perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information based on the configuration information.

[0102] In some embodiments, the configuration information includes at least one of the following:

[0103] A time domain resource range for performing channel detection;

[0104] A frequency domain resource range for performing channel detection;

[0105] Channel detection mechanism;

[0106] Channel detection frequency domain detection unit.

[0107] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the time domain resource range for performing channel detection. Thus, the base station can perform channel detection within the time domain resource range, and can achieve efficient channel detection.

[0108] Among them, the time domain resource range can be one or more continuous OFDM (Orthogonal Frequency Division Multiplexing) symbols, time slots, subframes, radio frames or other time domain units in the time domain; or the time domain resource range can also be one or more discontinuous OFDM symbols, time slots, subframes, radio frames or other time domain units in the time domain, and so on.

[0109] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the frequency domain resource range for performing channel detection. Thus, the base station can perform channel detection within the frequency domain resource range, and can achieve efficient channel detection.

[0110] The frequency domain resource range may be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the frequency domain resource range may be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0111] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including a channel detection mechanism. The channel detection mechanism indicates the channel detection method and the channel detection configuration. Thus, the base station can perform channel detection according to the determined channel detection mechanism, and can achieve efficient channel detection.

[0112] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the channel detection frequency domain detection unit. Thus, the base station can perform channel detection on the channel detection frequency domain detection unit, thereby achieving efficient channel detection.

[0113] Among them, the channel detection frequency domain detection unit can be used to indicate the basic detection unit for performing channel detection. The basic detection unit can be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the basic detection unit can also be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0114] Exemplarily, 6 RBs are used as a basic channel detection unit, or 10 MHz bandwidth is used as a basic detection unit.

[0115] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0116] In some possible implementations, after the base station determines the configuration information for performing channel detection, it may send an indication to the terminal device it serves to instruct the terminal device not to perform uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

[0117] In some embodiments, the base station sends indication information to the terminal device, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

[0118] In an embodiment of the present disclosure, a base station sends indication information to a terminal device, where the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information, thereby preventing the terminal device from performing uplink transmission and interfering with the downlink transmission of the interference base station, thereby avoiding transmission failure or data loss.

[0119] In some embodiments, the base station performs channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generates a channel detection result.

[0120] In an embodiment of the present disclosure, a base station determines to perform channel detection. After determining auxiliary information of an interfered base station corresponding to an interfered cell, and determining configuration information for performing channel detection based on the auxiliary information, it can be determined to perform channel detection on time domain resources and / or frequency domain resources indicated by the configuration information to generate a channel detection result.

[0121] It can be understood that after the base station performs channel detection and obtains the channel detection result, it can determine whether the detected channel resources are occupied. If occupied, it can abandon downlink data transmission and cancel downlink transmission to the terminal device, or it can adjust the downlink transmission parameters to reduce interference to the interfered cell.

[0122] By implementing the embodiments of the present disclosure, when the base station determines that the interference caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition, it determines to perform channel detection before performing downlink transmission to the terminal device. In this way, efficient channel detection can be achieved, and the downlink transmission can be controlled according to the channel detection result obtained by performing the channel detection, so as to avoid interference and improve the performance of the system.

[0123] See also Figure 4 , Figure 4 FIG. 1 is a flow chart of another channel detection method provided by an embodiment of the present disclosure. Figure 4 As shown, the method may include but is not limited to the following steps:

[0124] S41: When the interference caused by downlink transmission to the interfered cell of the interfered base station meets the first condition, the base station determines the auxiliary information of the interfered base station corresponding to the interfered cell, and determines the configuration information for channel detection according to the auxiliary information.

[0125] Among them, the relevant description of S41 can refer to the relevant description in the above embodiment, and will not be repeated here.

[0126] In some embodiments, the configuration information includes at least one of the following:

[0127] A time domain resource range for performing channel detection;

[0128] A frequency domain resource range for performing channel detection;

[0129] Channel detection mechanism;

[0130] Channel detection frequency domain detection unit.

[0131] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the time domain resource range for performing channel detection. Thus, the base station can perform channel detection within the time domain resource range, and can achieve efficient channel detection.

[0132] Among them, the time domain resource range can be one or more continuous OFDM (Orthogonal Frequency Division Multiplexing) symbols, time slots, subframes, radio frames or other time domain units in the time domain; or the time domain resource range can also be one or more discontinuous OFDM symbols, time slots, subframes, radio frames or other time domain units in the time domain, and so on.

[0133] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the frequency domain resource range for performing channel detection. Thus, the base station can perform channel detection within the frequency domain resource range, and can achieve efficient channel detection.

[0134] The frequency domain resource range may be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the frequency domain resource range may be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0135] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including a channel detection mechanism. The channel detection mechanism indicates the channel detection method and the channel detection configuration. Thus, the base station can perform channel detection according to the determined channel detection mechanism, and can achieve efficient channel detection.

[0136] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the channel detection frequency domain detection unit. Thus, the base station can perform channel detection on the channel detection frequency domain detection unit, thereby achieving efficient channel detection.

[0137] Among them, the channel detection frequency domain detection unit can be used to indicate the basic detection unit for performing channel detection. The basic detection unit can be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the basic detection unit can also be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0138] Exemplarily, 6 RBs are used as a basic channel detection unit, or 10 MHz bandwidth is used as a basic detection unit.

[0139] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0140] S42: The base station sends indication information to the terminal device, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

[0141] In the embodiment of the present disclosure, the base station sends an indication information to the terminal device, and the indication information is used to instruct the terminal device to cancel the uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

[0142] S43: The terminal device cancels uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information according to the indication information.

[0143] In the embodiment of the present disclosure, after receiving the indication information sent by the base station, the terminal device can cancel the uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information according to the indication information. Thus, the uplink transmission of the terminal device is prevented from interfering with the downlink transmission of the interfering base station, thereby avoiding transmission failure or data loss.

[0144] It should be noted that in the embodiments of the present disclosure, S41 to S43 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S31 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

[0145] By implementing the embodiments of the present disclosure, when determining that the interference caused by downlink transmission to the interfered cell of the interfered base station meets the first condition, the base station determines the auxiliary information of the interfered base station corresponding to the interfered cell, determines the configuration information for channel detection based on the auxiliary information, and sends indication information to the terminal device, wherein the indication information is used to instruct the terminal device to cancel the uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information. In this way, efficient channel detection can be achieved, and uplink transmission and downlink transmission can be controlled according to the configuration information of channel detection, which can avoid interference and improve system performance.

[0146] See also Figure 5 , Figure 5 FIG. 1 is a flow chart of another channel detection method provided by an embodiment of the present disclosure. Figure 5 As shown, the method may include but is not limited to the following steps:

[0147] S51: When interference caused by downlink transmission to an interfered cell of the interfered base station meets a first condition, the base station determines auxiliary information of the interfered base station corresponding to the interfered cell, and determines configuration information for performing channel detection according to the auxiliary information.

[0148] For the relevant description of S51, reference may be made to the relevant description in the above embodiment, which will not be repeated here.

[0149] In some embodiments, the configuration information includes at least one of the following:

[0150] A time domain resource range for performing channel detection;

[0151] A frequency domain resource range for performing channel detection;

[0152] Channel detection mechanism;

[0153] Channel detection frequency domain detection unit.

[0154] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the time domain resource range for performing channel detection. Thus, the base station can perform channel detection within the time domain resource range, and can achieve efficient channel detection.

[0155] Among them, the time domain resource range can be one or more continuous OFDM (Orthogonal Frequency Division Multiplexing) symbols, time slots, subframes, radio frames or other time domain units in the time domain; or the time domain resource range can also be one or more discontinuous OFDM symbols, time slots, subframes, radio frames or other time domain units in the time domain, and so on.

[0156] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the frequency domain resource range for performing channel detection. Thus, the base station can perform channel detection within the frequency domain resource range, and can achieve efficient channel detection.

[0157] The frequency domain resource range may be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the frequency domain resource range may be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0158] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including a channel detection mechanism. The channel detection mechanism indicates the channel detection method and the channel detection configuration. Thus, the base station can perform channel detection according to the determined channel detection mechanism, and can achieve efficient channel detection.

[0159] In the embodiment of the present disclosure, the base station determines the configuration information for performing channel detection, including the channel detection frequency domain detection unit. Thus, the base station can perform channel detection on the channel detection frequency domain detection unit, thereby achieving efficient channel detection.

[0160] Among them, the channel detection frequency domain detection unit can be used to indicate the basic detection unit for performing channel detection. The basic detection unit can be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the basic detection unit can also be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0161] Exemplarily, 6 RBs are used as a basic channel detection unit, or 10 MHz bandwidth is used as a basic detection unit.

[0162] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0163] S52: The base station performs channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generates a channel detection result.

[0164] S53: In response to the channel detection result indicating that the channel resources are occupied, the base station cancels downlink data transmission or adjusts downlink transmission parameters.

[0165] In an embodiment of the present disclosure, a base station determines to perform channel detection. After determining auxiliary information of an interfered base station corresponding to an interfered cell, and determining configuration information for performing channel detection based on the auxiliary information, it can be determined to perform channel detection on time domain resources and / or frequency domain resources indicated by the configuration information to generate a channel detection result.

[0166] It can be understood that after the base station performs channel detection and obtains the channel detection result, it can determine whether the detected channel resources are occupied. If occupied, it can abandon downlink data transmission and cancel downlink transmission to the terminal device, or it can adjust the downlink transmission parameters to reduce interference to the interfered cell.

[0167] It should be noted that in the embodiments of the present disclosure, S51 to S53 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S31 and / or S41 and S42 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

[0168] By implementing the embodiments of the present disclosure, when determining that the interference caused by downlink transmission to the interfered cell of the interfered base station meets the first condition, the base station determines the auxiliary information of the interfered base station corresponding to the interfered cell, determines the configuration information for channel detection based on the auxiliary information, performs channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generates a channel detection result, and cancels the downlink data transmission or adjusts the downlink transmission parameters in response to the channel detection result indicating that the channel resources are occupied. In this way, efficient channel detection can be achieved, and channel detection can also be performed according to the configuration information of the channel detection to obtain the channel detection result to control the downlink transmission, thereby avoiding interference and improving the performance of the system.

[0169] See also Figure 6 , Figure 6 This is a flow chart of another channel detection method provided by an embodiment of the present disclosure.

[0170] like Figure 6 As shown, the method is executed by a terminal device, and the method may include but is not limited to the following steps:

[0171] S61: In response to determining that interference caused by uplink transmission to the interfered terminal device satisfies a second condition, the terminal device determines to perform channel detection before performing uplink transmission to the base station.

[0172] In the embodiment of the present disclosure, when the terminal device determines that the interference caused by the uplink transmission to the interfered terminal device satisfies the second condition, the terminal device determines to perform channel detection before performing uplink transmission to the base station.

[0173] The terminal device and the interfered terminal device may be different terminal devices. For example, the interfered terminal device and the terminal device are located in different cells, and the interfered terminal device and the terminal device are within the coverage of different base stations.

[0174] The terminal device determines that the uplink transmission causes interference to the interfered terminal device. This can be determined based on the terminal device implementation, or based on a protocol agreement, or based on a base station indication, and so on.

[0175] In the embodiment of the present disclosure, in the interference scenario between terminal devices, the terminal device can determine whether the uplink transmission it needs to perform will cause interference to the interfered terminal device, and whether the generated interference meets the second condition.

[0176] The second condition may be determining that the uplink transmission will cause interference to the interfered terminal device, or that the interference caused by the uplink transmission to the interfered terminal device exceeds a predefined threshold.

[0177] In the embodiments of the present disclosure, the predefined threshold value may be determined by the terminal device based on implementation, or based on protocol agreement, or based on base station indication, and so on.

[0178] It is understandable that the terminal device performs channel detection before performing uplink transmission to the base station, and can obtain channel detection results. It can determine whether the channel resources it uses are occupied or whether the channel is busy based on the channel detection results.

[0179] Based on this, the terminal device can determine whether to perform uplink transmission or whether to adjust uplink transmission parameters according to the channel detection result.

[0180] Exemplarily, when the terminal device determines, based on the channel detection result, that the channel for uplink transmission is in a busy state, the uplink transmission may be canceled, or uplink transmission parameters may be adjusted.

[0181] Based on this, in the embodiment of the present disclosure, when the terminal device determines that the interference caused by the uplink transmission to the interfered terminal device meets the second condition, it determines to perform channel detection before uplink transmission to the base station. Efficient channel detection can be achieved, and the uplink transmission can be controlled according to the channel detection result obtained by performing the channel detection, which can avoid interference and improve the performance of the system.

[0182] In some possible implementations, the terminal device determines to perform channel detection before performing uplink transmission to the base station, including: receiving high-layer signaling sent by the base station; and determining configuration information for performing channel detection according to the high-layer signaling.

[0183] In the disclosed embodiment, the terminal device may receive high-layer signaling from the base station, such as system signaling, RRC (Radio Resource Control) signaling, MAC CE (media access control element) or physical layer signaling, etc. The configuration information for performing channel detection is determined according to the high-layer signaling from the base station.

[0184] The configuration information includes one or more of the time domain configuration, frequency domain configuration, channel detection mechanism, and frequency domain unit for performing channel detection that the terminal device can determine to perform channel access. Thus, the terminal device can determine to perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information based on the configuration information.

[0185] In some embodiments, the configuration information includes at least one of the following:

[0186] A time domain resource range for performing channel detection;

[0187] A frequency domain resource range for performing channel detection;

[0188] Channel detection mechanism;

[0189] Channel detection frequency domain detection unit.

[0190] In the embodiment of the present disclosure, the terminal device determines the configuration information for performing channel detection according to the high-level signaling, including the time domain resource range for performing channel detection. Thus, the terminal device can perform channel detection within the time domain resource range, and can achieve efficient channel detection.

[0191] Among them, the time domain resource range can be one or more continuous OFDM (Orthogonal Frequency Division Multiplexing) symbols, time slots, subframes, radio frames or other time domain units in the time domain; or the time domain resource range can also be one or more discontinuous OFDM symbols, time slots, subframes, radio frames or other time domain units in the time domain, and so on.

[0192] In the disclosed embodiment, the terminal device determines the configuration information for performing channel detection according to the high-level signaling, including the frequency domain resource range for performing channel detection. Thus, the terminal device can perform channel detection within the frequency domain resource range, and can achieve efficient channel detection.

[0193] The frequency domain resource range may be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the frequency domain resource range may be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0194] In the embodiment of the present disclosure, the terminal device determines the configuration information for performing channel detection according to the high-level signaling, including the channel detection mechanism. The channel detection mechanism indicates the channel detection method and the channel detection configuration. Thus, the terminal device can perform channel detection according to the determined channel detection mechanism, and can achieve efficient channel detection.

[0195] In the embodiment of the present disclosure, the terminal device determines the configuration information for performing channel detection, including the channel detection frequency domain detection unit. Thus, the terminal device can perform channel detection on the channel detection frequency domain detection unit, thereby achieving efficient channel detection.

[0196] Among them, the channel detection frequency domain detection unit can be used to indicate the basic detection unit for performing channel detection. The basic detection unit can be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the basic detection unit can also be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0197] Exemplarily, 6 RBs are used as a basic channel detection unit, or 10 MHz bandwidth is used as a basic detection unit.

[0198] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0199] In the embodiment of the present disclosure, after the terminal device determines the configuration information for performing channel detection, it can perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information to obtain the channel detection result.

[0200] In some other possible implementations, the terminal device determines to perform channel detection before performing uplink transmission to the base station, including: determining a first time domain position; determining to perform channel detection at the first time domain position before performing uplink transmission to the base station, and generating a channel detection result.

[0201] In an embodiment of the present disclosure, the terminal device may perform channel detection at a first time domain position, wherein the terminal device may determine the first time domain position, and the terminal device may determine the first time domain position based on implementation, or based on a base station indication, or based on a protocol agreement, and so on.

[0202] Wherein, when determining the first time domain position, the terminal device can perform channel detection at the first time domain position and generate a channel detection result before performing uplink transmission to the base station.

[0203] Exemplarily, the terminal device performs channel detection at a first time domain position, and may perform channel detection at a position of one symbol after receiving an uplink scheduling instruction from a base station; or may also perform channel detection at a position of the first symbol of a target uplink resource scheduled by the received uplink scheduling instruction, etc.

[0204] The terminal device may further report capability indication information, which represents the time information required for the terminal device to complete channel detection related operations. The base station may determine the time gap between the resource where the uplink scheduling instruction is located and the scheduled resource based on the capability information reported by the terminal device.

[0205] It can be understood that after the terminal device performs channel detection and obtains the channel detection result, it can determine whether the detected channel is in a busy state. If it is in a busy state, the uplink data transmission can be abandoned and the uplink transmission can be canceled, or it can also determine whether the uplink transmission parameters need to be adjusted based on the channel detection result. If it is determined that the channel is in a busy state based on the channel detection result, the uplink transmission parameters can be adjusted to reduce interference to the interfered terminal device.

[0206] In some embodiments, the uplink transmission parameter includes at least one of the following:

[0207] Uplink transmission power;

[0208] Uplink transmission MCS (modulation and coding scheme) level;

[0209] The amount of resources occupied by uplink transmission.

[0210] In the disclosed embodiment, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and may determine to adjust the uplink transmission power.

[0211] In the disclosed embodiment, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and may determine to adjust the uplink transmission MCS.

[0212] In the disclosed embodiment, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and may determine to adjust the amount of resources occupied by the uplink transmission.

[0213] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0214] In some possible implementations, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and can adjust the uplink transmission parameters according to the channel detection result in a predefined manner to determine the adjusted uplink transmission parameters.

[0215] The predefined method may be pre-indicated by the base station or pre-indicated by the protocol, and so on.

[0216] In other possible implementations, the terminal device determines to adjust the uplink transmission parameters based on the channel detection results, and can adjust the uplink transmission parameters according to the target parameter adjustment method when the target parameter adjustment method is determined based on the channel detection results and the corresponding relationship to determine the adjusted uplink transmission parameters.

[0217] Among them, the correspondence between the channel detection result and the parameter adjustment method can be determined by the terminal device based on implementation, or based on the base station instruction, or based on the protocol agreement.

[0218] Among them, when the terminal device determines the correspondence between the channel detection result and the parameter adjustment method based on the base station instruction, it can be determined according to the high-level signaling or physical layer signaling sent by the base station.

[0219] Exemplarily, the corresponding relationship between the channel detection result and the parameter adjustment method is shown in the following Table 1:

[0220] Channel detection results Parameter adjustment method Less than or equal to threshold 1 No need to adjust transmission parameters Greater than the threshold, less than or equal to the threshold 2 Transmission parameter offset value 1 Greater than threshold 2 Transmission parameter offset value 2

[0221] Table 1

[0222] It is understood that each element in Table 1 exists independently. These elements are exemplarily listed in the same table, but it does not mean that all elements in the table must exist at the same time as shown in the table. The value of each element is independent of the value of any other element in Table 1. Therefore, those skilled in the art can understand that the value of each element in Table 1 is an independent embodiment.

[0223] By implementing the embodiments of the present disclosure, when the terminal device determines that the interference caused by the uplink transmission to the interfered terminal device satisfies the second condition, it determines to perform channel detection before uplink transmission to the base station. Efficient channel detection can be achieved, and the uplink transmission can be controlled according to the channel detection result obtained by performing the channel detection, so as to avoid interference and improve the performance of the system.

[0224] See also Figure 7 , Figure 7 This is a flow chart of another channel detection method provided by an embodiment of the present disclosure.

[0225] like Figure 7 As shown, the method is executed by a terminal device, and the method may include but is not limited to the following steps:

[0226] S71: In response to determining that the interference caused by uplink transmission to the interfered terminal device meets the second condition, the terminal device receives high-layer signaling sent by the base station; and determines configuration information for performing channel detection according to the high-layer signaling.

[0227] S72: Perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generate a channel detection result.

[0228] S73: In response to the channel detection result indicating that the channel is in a busy state, determine to cancel uplink transmission.

[0229] In the disclosed embodiment, the terminal device may receive high-layer signaling from the base station, such as system signaling, RRC (Radio Resource Control) signaling, MAC CE (media access control element) or physical layer signaling, etc. The configuration information for performing channel detection is determined according to the high-layer signaling from the base station.

[0230] The configuration information includes one or more of the time domain configuration, frequency domain configuration, channel detection mechanism, and frequency domain unit for performing channel detection that the terminal device can determine to perform channel access. Thus, the terminal device can determine to perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information based on the configuration information.

[0231] In some embodiments, the configuration information includes at least one of the following:

[0232] A time domain resource range for performing channel detection;

[0233] A frequency domain resource range for performing channel detection;

[0234] Channel detection mechanism;

[0235] Channel detection frequency domain detection unit.

[0236] In the embodiment of the present disclosure, the terminal device determines the configuration information for performing channel detection according to the high-level signaling, including the time domain resource range for performing channel detection. Thus, the terminal device can perform channel detection within the time domain resource range, and can achieve efficient channel detection.

[0237] Among them, the time domain resource range can be one or more continuous OFDM (Orthogonal Frequency Division Multiplexing) symbols, time slots, subframes, radio frames or other time domain units in the time domain; or the time domain resource range can also be one or more discontinuous OFDM symbols, time slots, subframes, radio frames or other time domain units in the time domain, and so on.

[0238] In the disclosed embodiment, the terminal device determines the configuration information for performing channel detection according to the high-level signaling, including the frequency domain resource range for performing channel detection. Thus, the terminal device can perform channel detection within the frequency domain resource range, and can achieve efficient channel detection.

[0239] The frequency domain resource range may be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the frequency domain resource range may be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0240] In the embodiment of the present disclosure, the terminal device determines the configuration information for performing channel detection according to the high-level signaling, including the channel detection mechanism. The channel detection mechanism indicates the channel detection method and the channel detection configuration. Thus, the terminal device can perform channel detection according to the determined channel detection mechanism, and can achieve efficient channel detection.

[0241] In the embodiment of the present disclosure, the terminal device determines the configuration information for performing channel detection, including the channel detection frequency domain detection unit. Thus, the terminal device can perform channel detection on the channel detection frequency domain detection unit, thereby achieving efficient channel detection.

[0242] Among them, the channel detection frequency domain detection unit can be used to indicate the basic detection unit for performing channel detection. The basic detection unit can be one or more continuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain; or the basic detection unit can also be one or more discontinuous sub-carriers (SC), resource blocks (RB), resource block sets (RB sets), bandwidth parts (BWP) or other frequency domain units in the frequency domain, and so on.

[0243] Exemplarily, 6 RBs are used as a basic channel detection unit, or 10 MHz bandwidth is used as a basic detection unit.

[0244] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0245] In the embodiment of the present disclosure, after the terminal device determines the configuration information for performing channel detection, it can perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information to obtain the channel detection result.

[0246] In the embodiment of the present disclosure, after the terminal device obtains the channel detection result, if the channel detection result indicates that the channel is in a busy state, it can be determined to cancel the uplink transmission.

[0247] It should be noted that in the embodiments of the present disclosure, S71 to S73 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S61 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

[0248] By implementing the embodiment of the present disclosure, in response to determining that the interference caused by uplink transmission to the interfered terminal device meets the second condition, the terminal device receives the high-level signaling sent by the base station; according to the high-level signaling, the configuration information for channel detection is determined, the channel detection is performed on the time domain resources and / or frequency domain resources indicated by the configuration information, and a channel detection result is generated, and in response to the channel detection result indicating that the channel is in a busy state, the uplink transmission is determined to be cancelled. In this way, efficient channel detection can be achieved, and according to the channel detection result obtained by performing channel detection, the uplink transmission can be controlled, interference can be avoided, and the performance of the system can be improved.

[0249] See also Figure 8 , Figure 8 This is a flow chart of another channel detection method provided by an embodiment of the present disclosure.

[0250] like Figure 8 As shown, the method is executed by a terminal device, and the method may include but is not limited to the following steps:

[0251] S81: In response to determining that the interference caused by uplink transmission to the interfered terminal device meets the second condition, the terminal device receives high-layer signaling sent by the base station; and determines configuration information for performing channel detection according to the high-layer signaling.

[0252] S82: Perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generate a channel detection result.

[0253] Among them, the relevant descriptions of S81 and S82 can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0254] S83: Determine to adjust uplink transmission parameters according to the channel detection result.

[0255] It can be understood that after the terminal device performs channel detection and obtains the channel detection result, it can determine whether the uplink transmission parameters need to be adjusted based on the channel detection result. When it is determined based on the channel detection result that the channel is busy, the uplink transmission parameters can be adjusted to reduce interference to the interfered terminal device.

[0256] In some embodiments, the uplink transmission parameter includes at least one of the following:

[0257] Uplink transmission power;

[0258] Uplink transmission MCS (modulation and coding scheme) level;

[0259] The amount of resources occupied by uplink transmission.

[0260] In the disclosed embodiment, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and may determine to adjust the uplink transmission power.

[0261] In the disclosed embodiment, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and may determine to adjust the uplink transmission MCS.

[0262] In the disclosed embodiment, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and may determine to adjust the amount of resources occupied by the uplink transmission.

[0263] It should be noted that the above embodiments are not exhaustive but are only illustrations of some embodiments, and the above embodiments may be implemented individually or in combination. The above embodiments are only for illustration and are not intended to be specific limitations on the scope of protection of the embodiments of the present disclosure.

[0264] In some possible implementations, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and can adjust the uplink transmission parameters according to the channel detection result in a predefined manner to determine the adjusted uplink transmission parameters.

[0265] The predefined method may be pre-indicated by the base station or pre-indicated by the protocol, and so on.

[0266] In other possible implementations, the terminal device determines to adjust the uplink transmission parameters based on the channel detection results, and can adjust the uplink transmission parameters according to the target parameter adjustment method when the target parameter adjustment method is determined based on the channel detection results and the corresponding relationship to determine the adjusted uplink transmission parameters.

[0267] Among them, the correspondence between the channel detection result and the parameter adjustment method can be determined by the terminal device based on implementation, or based on the base station instruction, or based on the protocol agreement.

[0268] Among them, when the terminal device determines the correspondence between the channel detection result and the parameter adjustment method based on the base station instruction, it can be determined according to the high-level signaling or physical layer signaling sent by the base station.

[0269] Exemplarily, the correspondence between the channel detection result and the parameter adjustment method is shown in Table 1 above.

[0270] It should be noted that in the embodiments of the present disclosure, S81 to S83 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S61 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

[0271] By implementing the embodiment of the present disclosure, in response to determining that the interference caused by uplink transmission to the interfered terminal device meets the second condition, the terminal device receives the high-level signaling sent by the base station; determines the configuration information for performing channel detection according to the high-level signaling, performs channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generates a channel detection result, and determines to adjust the uplink transmission parameters according to the channel detection result. In this way, efficient channel detection can be achieved, and the uplink transmission parameters can be adjusted according to the channel detection result obtained by performing channel detection, which can avoid interference and improve the performance of the system.

[0272] See also Fig. 9 , Fig. 9 This is a flow chart of another channel detection method provided by an embodiment of the present disclosure.

[0273] like Fig. 9 As shown, the method is executed by a terminal device, and the method may include but is not limited to the following steps:

[0274] S91: In response to determining that the interference caused by the uplink transmission to the interfered terminal device meets the second condition, the terminal device determines the first time domain position; determines to perform channel detection at the first time domain position before performing uplink transmission to the base station, and generates a channel detection result.

[0275] S92: In response to the channel detection result indicating that the channel is in a busy state, determine to cancel uplink transmission.

[0276] In an embodiment of the present disclosure, the terminal device may perform channel detection at a first time domain position, wherein the terminal device may determine the first time domain position, and the terminal device may determine the first time domain position based on implementation, or based on a base station indication, or based on a protocol agreement, and so on.

[0277] Wherein, when determining the first time domain position, the terminal device can perform channel detection at the first time domain position and generate a channel detection result before performing uplink transmission to the base station.

[0278] Exemplarily, the terminal device performs channel detection at a first time domain position, and may perform channel detection at a position of one symbol after receiving an uplink scheduling instruction from a base station; or may also perform channel detection at a position of the first symbol of a target uplink resource scheduled by the received uplink scheduling instruction, etc.

[0279] The terminal device may further report capability indication information, which represents the time information required for the terminal device to complete channel detection related operations. The base station may determine the time gap between the resource where the uplink scheduling instruction is located and the scheduled resource based on the capability information reported by the terminal device.

[0280] It is understandable that after the terminal device performs channel detection and obtains the channel detection result, it can determine whether the detected channel is in a busy state. If it is in a busy state, the uplink data transmission can be abandoned and the uplink transmission can be canceled.

[0281] It should be noted that in the embodiment of the present disclosure, S91 to S92 can be implemented separately or in combination with any other steps in the embodiment of the present disclosure, for example, in combination with S61 in the embodiment of the present disclosure, and the embodiment of the present disclosure is not limited to this.

[0282] By implementing the embodiment of the present disclosure, the terminal device determines the first time domain position in response to determining that the interference caused by the uplink transmission to the interfered terminal device meets the second condition; determines to perform channel detection at the first time domain position before uplink transmission to the base station, and generates a channel detection result, and determines to cancel the uplink transmission in response to the channel detection result indicating that the channel is in a busy state. In this way, efficient channel detection can be achieved, and the uplink transmission can be controlled according to the channel detection result obtained by performing the channel detection, which can avoid interference and improve the performance of the system.

[0283] See also Fig.10 , Fig.10This is a flow chart of another channel detection method provided by an embodiment of the present disclosure.

[0284] like Fig.10 As shown, the method is executed by a terminal device, and the method may include but is not limited to the following steps:

[0285] S101: In response to determining that the interference caused by uplink transmission to the interfered terminal device meets the second condition, the terminal device determines a first time domain position; determines to perform channel detection at the first time domain position before uplink transmission to the base station, and generates a channel detection result.

[0286] For the relevant description of S101, reference may be made to the relevant description in the above embodiment, which will not be repeated here.

[0287] S102: Determine to adjust uplink transmission parameters according to the channel detection result.

[0288] In some possible implementations, the terminal device determines to adjust the uplink transmission parameters according to the channel detection result, and can adjust the uplink transmission parameters according to the channel detection result in a predefined manner to determine the adjusted uplink transmission parameters.

[0289] The predefined method may be pre-indicated by the base station or pre-indicated by the protocol, and so on.

[0290] In other possible implementations, the terminal device determines to adjust the uplink transmission parameters based on the channel detection results, and can adjust the uplink transmission parameters according to the target parameter adjustment method when the target parameter adjustment method is determined based on the channel detection results and the corresponding relationship to determine the adjusted uplink transmission parameters.

[0291] Among them, the correspondence between the channel detection result and the parameter adjustment method can be determined by the terminal device based on implementation, or based on the base station instruction, or based on the protocol agreement.

[0292] Among them, when the terminal device determines the correspondence between the channel detection result and the parameter adjustment method based on the base station instruction, it can be determined according to the high-level signaling or physical layer signaling sent by the base station.

[0293] Exemplarily, the correspondence between the channel detection result and the parameter adjustment method is shown in Table 1 above.

[0294] It should be noted that in the embodiments of the present disclosure, S101 to S102 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S61 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

[0295] By implementing the embodiment of the present disclosure, in response to determining that the interference caused by uplink transmission to the interfered terminal device meets the second condition, the terminal device determines the first time domain position; determines to perform channel detection at the first time domain position before uplink transmission to the base station, and generates a channel detection result, and determines to adjust the uplink transmission parameters according to the channel detection result. In this way, efficient channel detection can be achieved, and the uplink transmission parameters can be adjusted according to the channel detection result obtained by performing channel detection, which can avoid interference and improve system performance.

[0296] In the above-mentioned embodiments provided by the present disclosure, the methods provided by the embodiments of the present disclosure are introduced from the perspectives of the terminal device, the base station, and the interaction between the terminal device and the base station.

[0297] See also Fig.11 , is a structural diagram of a communication device 1 provided in an embodiment of the present disclosure. Fig.11 The communication device 1 shown may include a transceiver module 11 and a processing module 12. The transceiver module may include a sending module and / or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module may implement a sending function and / or a receiving function.

[0298] The communication device 1 may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. Alternatively, the communication device 1 may be a base station, a device in a base station, or a device that can be used in conjunction with a base station.

[0299] The communication device 1 is a base station:

[0300] The device includes: a processing module 12.

[0301] The processing module 12 is configured to determine to perform channel detection before performing downlink transmission to the terminal device in response to determining that the interference caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition.

[0302] In some embodiments, the processing module 12 is further configured to determine auxiliary information of an interfered base station corresponding to the interfered cell; and determine configuration information for performing channel detection according to the auxiliary information.

[0303] In some embodiments, the configuration information includes at least one of the following:

[0304] A time domain resource range for performing channel detection;

[0305] A frequency domain resource range for performing channel detection;

[0306] Channel detection mechanism;

[0307] Channel detection frequency domain detection unit.

[0308] like Fig.11 As shown, in some embodiments, the device further includes: a transceiver module 11.

[0309] The transceiver module 11 is configured to send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

[0310] In some embodiments, the processing module 12 is further configured to perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generate a channel detection result.

[0311] In some embodiments, the processing module 12 is further configured to cancel downlink data transmission or adjust downlink transmission parameters in response to the channel detection result indicating that the channel resources are occupied.

[0312] The communication device 1 is a terminal device:

[0313] The device includes: a transceiver module 11 and a processing module 12.

[0314] The transceiver module 11 is configured to receive indication information sent by the base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station according to the auxiliary information of the interfered base station corresponding to the interfered cell when it is determined that the interference caused by the downlink transmission to the interfered cell of the interfered base station meets the preset conditions;

[0315] The processing module 12 is configured to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information according to the indication information.

[0316] In some embodiments, the configuration information includes at least one of the following:

[0317] A time domain resource range for performing channel detection;

[0318] A frequency domain resource range for performing channel detection;

[0319] Channel detection mechanism;

[0320] Channel detection frequency domain detection unit.

[0321] The communication device 1 is a terminal device:

[0322] The device includes: a processing module 12.

[0323] The processing module 12 is configured to determine to perform channel detection before performing uplink transmission to the base station in response to determining that the interference caused by the uplink transmission to the interfered terminal device meets a preset condition.

[0324] like Fig.11 As shown, in some embodiments, the device further includes: a transceiver module 11.

[0325] The transceiver module 11 is configured to receive high-layer signaling sent by the base station.

[0326] The processing module 12 is further configured to determine configuration information for performing channel detection according to the high-layer signaling.

[0327] In some embodiments, the configuration information includes at least one of the following:

[0328] A time domain resource range for performing channel detection;

[0329] A frequency domain resource range for performing channel detection;

[0330] Channel detection mechanism;

[0331] Channel detection frequency domain detection unit.

[0332] In some embodiments, the processing module 12 is further configured to perform channel detection on the time domain resources and / or frequency domain resources indicated by the configuration information, and generate a channel detection result.

[0333] In some embodiments, the processing module 12 is further configured to determine a first time domain position; determine to perform channel detection at the first time domain position before performing uplink transmission to the base station, and generate a channel detection result.

[0334] In some embodiments, the processing module 12 is further configured to determine to cancel the uplink transmission in response to the channel detection result indicating that the channel is in a busy state.

[0335] In some embodiments, the processing module 12 is further configured to determine to adjust the uplink transmission parameters according to the channel detection result.

[0336] In some embodiments, the processing module 12 is further configured to determine a correspondence between a channel detection result and a parameter adjustment method; in response to determining a target parameter adjustment method based on the channel detection result and the correspondence, adjust the uplink transmission parameter according to the target parameter adjustment method.

[0337] In some embodiments, the uplink transmission parameter includes at least one of the following:

[0338] Uplink transmission power;

[0339] Uplink transmission modulation and coding strategy MCS level;

[0340] The amount of resources occupied by uplink transmission.

[0341] Regarding the communication device 1 in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0342] The communication device 1 provided in the above embodiments of the present disclosure achieves the same or similar beneficial effects as the channel detection methods provided in some of the above embodiments, which will not be described in detail here.

[0343] See also Fig.12 , Fig.12 1 is a schematic diagram of the structure of another communication device 1000 provided in an embodiment of the present disclosure. The communication device 1000 may be a base station, or a terminal device, or a chip, a chip system, or a processor that supports the base station to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method. The communication device 1000 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

[0344] The communication device 1000 may include one or more processors 1001. The processor 1001 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a network side device, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.

[0345] Optionally, the communication device 1000 may further include one or more memories 1002, on which a computer program 1004 may be stored, and the memory 1002 executes the computer program 1004 so that the communication device 1000 executes the method described in the above method embodiment. Optionally, data may also be stored in the memory 1002. The communication device 1000 and the memory 1002 may be provided separately or integrated together.

[0346] Optionally, the communication device 1000 may further include a transceiver 1005 and an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function. The transceiver 1005 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

[0347] Optionally, the communication device 1000 may further include one or more interface circuits 1007. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001. The processor 1001 executes the code instructions to enable the communication device 1000 to execute the method described in the above method embodiment.

[0348] The communication device 1000 is a base station: the processor 1001 is used to execute Figure 3 S31 in; Figure 4 S41 in; Figure 5 S51, S52 and S53 in the embodiment; transceiver 1005 is used to execute Figure 4 S42 in.

[0349] The communication device 1000 is a terminal device: the transceiver 1005 is used to perform Figure 4 S42 in the process; the processor 1001 is used to execute Figure 4 S43 in.

[0350] The communication device 1000 is a terminal device: the processor 1001 is used to execute Figure 6 S61 in; Figure 7 S71, S72 and S73 in; Figure 8 S81, S82 and S83 in; Fig. 9 S91 and S92; Fig.10 S101 and S102 in.

[0351] In one implementation, the processor 1001 may include a transceiver for implementing receiving and sending functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0352] In one implementation, the processor 1001 may store a computer program 1003, which runs on the processor 1001 and enables the communication device 1000 to perform the method described in the above method embodiment. The computer program 1003 may be fixed in the processor 1001, in which case the processor 1001 may be implemented by hardware.

[0353] In one implementation, the communication device 1000 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channelmetal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0354] The communication device described in the above embodiments may be a terminal device or a network side device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited thereto. Fig.12 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0355] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0356] (2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;

[0357] (3) ASIC, such as modem;

[0358] (4) Modules that can be embedded in other devices;

[0359] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0360] (6)Others

[0361] For cases where the communication device may be a chip or a chip system, see Fig.13 , is a structural diagram of a chip provided in an embodiment of the present disclosure.

[0362] The chip 1100 includes a processor 1101 and an interface 1103. The number of the processor 1101 may be one or more, and the number of the interface 1103 may be multiple.

[0363] For the case where the chip is used to implement the functions of the terminal device in the embodiment of the present disclosure:

[0364] The interface 1103 is used to receive code instructions and transmit them to the processor.

[0365] The processor 1101 is configured to run code instructions to execute the channel detection method as described in some of the above embodiments.

[0366] For the case where the chip is used to implement the function of the base station in the embodiment of the present disclosure:

[0367] The interface 1103 is used to receive code instructions and transmit them to the processor.

[0368] The processor 1101 is configured to run code instructions to execute the channel detection method as described in some of the above embodiments.

[0369] Optionally, the chip 1100 further includes a memory 1102, and the memory 1102 is used to store necessary computer programs and data.

[0370] Those skilled in the art may also understand that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions described for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

[0371] The present disclosure also provides a channel detection system, which includes the aforementioned Fig.11 In the embodiment, the communication device as the terminal device and the communication device as the base station, or the system includes the aforementioned Fig.12 The communication device in the embodiment serves as a terminal device and the communication device serves as a base station.

[0372] The present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0373] The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0374] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0375] Those skilled in the art can understand that the various numerical numbers such as first and second involved in the present disclosure are only used for distinction for convenience of description and are not used to limit the scope of the embodiments of the present disclosure, and also indicate the order of precedence.

[0376] At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no order of precedence or size between the technical features described by the "first", "second", "third", "A", "B", "C" and "D".

[0377] The corresponding relationships shown in the tables in the present disclosure can be configured or predefined. The values ​​of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure. When configuring the corresponding relationship between the information and each parameter, it is not necessarily required to configure all the corresponding relationships illustrated in each table. For example, in the table in the present disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also be other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.

[0378] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0379] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0380] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0381] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A channel detection method, characterized in that: The method is performed by a base station and includes: In response to determining that in a dynamic time division duplex (TDD) scenario, co-channel interference caused by downlink transmission to an interfered cell of an interfered base station satisfies a first condition, determining to perform channel detection before performing downlink transmission to a terminal device; The determining to perform channel detection before downlink transmission to the terminal device includes: Determining auxiliary information of the interfered base station; Determining configuration information for performing channel detection according to the auxiliary information; Wherein, the method further comprises: Send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

2. The method according to claim 1, characterized in that The configuration information includes at least one of the following: A time domain resource range for performing channel detection; A frequency domain resource range for performing channel detection; Channel detection mechanism; Channel detection frequency domain detection unit.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Channel detection is performed on the time domain resources and / or frequency domain resources indicated by the configuration information, and a channel detection result is generated.

4. The method according to claim 3, characterized in that The method further comprises: In response to the channel detection result indicating that the channel resources are occupied, downlink data transmission is canceled, or downlink transmission parameters are adjusted.

5. A channel detection method, characterized in that: The method is executed by a terminal device, and includes: Receive indication information sent by a base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station in a dynamic TDD scenario, when determining that the interference of the co-channel caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition, and determining that channel detection is performed before downlink transmission to the terminal device, based on the auxiliary information of the interfered base station corresponding to the interfered cell; According to the indication information, uplink transmission is canceled on the time domain resources and / or frequency domain resources indicated by the configuration information.

6. The method according to claim 5, characterized in that The configuration information includes at least one of the following: A time domain resource range for performing channel detection; A frequency domain resource range for performing channel detection; Channel detection mechanism; Channel detection frequency domain detection unit.

7. A channel detection method, characterized in that: The method is executed by a terminal device, and includes: In response to determining that in a dynamic TDD scenario, co-channel interference caused by uplink transmission to the interfered terminal device meets a second condition, determining to perform channel detection before uplink transmission to the base station; Receive indication information sent by a base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station in a dynamic TDD scenario, when determining that the co-channel interference caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition, and when determining to perform channel detection before downlink transmission to the terminal device, based on the auxiliary information of the interfered base station corresponding to the interfered cell.

8. The method according to claim 7, characterized in that The determining to perform channel detection before uplink transmission to the base station includes: Receive high-level signaling sent by the base station; Configuration information for performing channel detection is determined according to the high-layer signaling.

9. The method according to claim 7 or 8, characterized in that The configuration information includes at least one of the following: A time domain resource range for performing channel detection; A frequency domain resource range for performing channel detection; Channel detection mechanism; Channel detection frequency domain detection unit.

10. The method according to claim 8, characterized in that The method further comprises: Channel detection is performed on the time domain resources and / or frequency domain resources indicated by the configuration information, and a channel detection result is generated.

11. The method according to claim 7, characterized in that The determining to perform channel detection before uplink transmission to the base station includes: determining a first time domain position; It is determined that before uplink transmission is performed to the base station, channel detection is performed at the first time domain position and a channel detection result is generated.

12. The method according to claim 10 or 11, characterized in that The method further comprises: In response to the channel detection result indicating that the channel is in a busy state, it is determined to cancel uplink transmission.

13. The method according to claim 10 or 11, characterized in that: The method further comprises: According to the channel detection result, it is determined to adjust the uplink transmission parameters.

14. The method according to claim 13, characterized in that The step of determining, according to the channel detection result, to adjust an uplink transmission parameter comprises: Determining a correspondence between the channel detection result and the parameter adjustment method; In response to determining a target parameter adjustment method based on the channel detection result and the corresponding relationship, the uplink transmission parameter is adjusted according to the target parameter adjustment method.

15. The method according to claim 13, characterized in that The uplink transmission parameter includes at least one of the following: Uplink transmission power; Uplink transmission modulation and coding strategy MCS level; The amount of resources occupied by uplink transmission.

16. A communication device, characterized in that: The device comprises: The processing module is configured to determine, in response to determining that in a dynamic TDD scenario, the interference of a co-channel generated by downlink transmission on an interfered cell of an interfered base station meets a first condition, to perform channel detection before performing downlink transmission to a terminal device; wherein the determination to perform channel detection before performing downlink transmission to the terminal device includes: determining auxiliary information of the interfered base station; and determining configuration information for performing channel detection according to the auxiliary information; A transceiver module is used to send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information.

17. A communication device, characterized in that: The device comprises: A transceiver module is configured to receive indication information sent by a base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station in a dynamic TDD scenario, when the interference of the co-channel caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition, and when channel detection is performed before downlink transmission to the terminal device, the configuration information is determined according to the auxiliary information of the interfered base station corresponding to the interfered cell; The transceiver module is further configured to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information according to the indication information.

18. A communication device, characterized in that: The device comprises: A processing module, configured to determine to perform channel detection before uplink transmission to the base station in response to determining that the co-channel interference generated by the uplink transmission on the interfered terminal device in the dynamic TDD scenario meets the second condition; The transceiver module is configured to receive indication information sent by a base station, wherein the indication information is used to instruct the terminal device to cancel uplink transmission on the time domain resources and / or frequency domain resources indicated by the configuration information; the configuration information is determined by the base station in a dynamic TDD scenario, when the interference caused by the downlink transmission to the interfered cell of the interfered base station meets the first condition, and when channel detection is performed before downlink transmission to the terminal device, based on the auxiliary information of the interfered base station corresponding to the interfered cell.

19. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory so that the device performs the method as described in any one of claims 1 to 4, or the processor executes the computer program stored in the memory so that the device performs the method as described in any one of claims 5 or 6, or the processor executes the computer program stored in the memory so that the device performs the method as described in any one of claims 7 to 15.

20. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is used to run the code instructions to execute the method according to any one of claims 1 to 4, or to run the code instructions to execute the method according to claim 5 or 6, or to run the code instructions to execute the method according to any one of claims 7 to 15.

21. A computer-readable storage medium storing instructions, which, when executed, implement the method according to any one of claims 1 to 4, or implement the method according to claim 5 or 6, or implement the method according to any one of claims 7 to 15.

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