Uplink transmission method, uplink scheduling method, apparatus, and communication system

Abstract

To provide an uplink transmission method, an uplink scheduling method, a device, and a communication system.SOLUTION: An uplink transmission method includes a step in which a terminal device performs channel detection on two or more bandwidth units of a carrier, and a step in which the terminal device transmits an uplink transmission on at least one bandwidth unit based on a result of the channel detection, and at least one bandwidth unit is detected to be idle.EFFECT: The terminal device performs channel detection on the two or more bandwidth units of the carrier, determines whether each bandwidth unit is busy or idle, and can initiate or complete data transmission more quickly.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to the field of communications, and more particularly to an uplink transmission method, an uplink scheduling method, an apparatus, and a communication system.

Background Art

[0002] In an unlicensed frequency band, considering the frequency band regulation requirements and network coexistence, a terminal device needs to detect whether the channel is idle or busy before transmitting data, and can only transmit data when the channel is idle. For example, before transmitting data, the terminal device detects energy or a signal, and if the energy is lower than a predetermined threshold or no signal is detected, it determines that the channel is idle.

[0003] It should be noted that the above description of the background art is only for more clearly and completely explaining the configuration of the present invention, and is for the purpose of making those skilled in the art understand. These configurations should not be construed as well-known technologies to those skilled in the art just because they are described in the background art part of the present invention.

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to the discovery of the inventor of the present invention, in Long Term Evolution - License Assisted Access (LTE - LAA), the carrier bandwidth is 20 MHz or 10 MHz. In uplink transmission, the terminal device detects a carrier (LAA Scell) to determine whether the corresponding channel is idle or busy, and performs transmission on the carrier. However, in New Radio (NR) - based access to unlicensed spectrum (NR - U), the carrier bandwidth is larger than 20 MHz and may be, for example, 40 MHz or 80 MHz. The terminal device may perform channel detection on two or more bandwidth units of the carrier to determine whether each bandwidth unit is busy or idle so that the terminal device can start or complete data transmission more quickly. Therefore, the channel detection and uplink transmission method in LTE - LAA cannot be directly applied to this scenario.

[0005] To solve at least one of the above problems, or other similar problems, embodiments of the present invention provide an uplink transmission method, apparatus, and communication system.

Means for Solving the Problems

[0006] In a first aspect of an embodiment of the present invention, there is provided an uplink transmission method configured in a terminal device, including: a step in which the terminal device performs channel detection on two or more bandwidth units of a carrier; and a step in which the terminal device transmits an uplink transmission on at least one bandwidth unit based on the result of the channel detection, where the at least one bandwidth unit is detected to be idle.

[0007] In a second aspect of an embodiment of the present invention, there is provided an uplink scheduling method configured in a network device, the method including: a step of the network device transmitting at least one first instruction information to a terminal device, where the at least one first instruction information indicates at least one resource available for uplink transmission, the at least one resource corresponding to at least one bandwidth unit among two or more bandwidth units of carriers in a frequency domain; the terminal device performing channel detection on the two or more bandwidth units and transmitting uplink transmission on at least one bandwidth unit based on a result of the channel detection, where the at least one bandwidth unit is detected to be idle.

[0008] In a third aspect of an embodiment of the present invention, there is provided an uplink scheduling method configured in a network device, the method including: a step of the network device transmitting second instruction information to a terminal device, where the second instruction information is related to a method for the terminal device to determine whether to transmit uplink transmission, and the terminal device determines whether to transmit uplink transmission based on the second instruction information.

[0009] In a fourth aspect of an embodiment of the present invention, there is provided an uplink scheduling method configured in a network device, the method including: a step of the network device transmitting third instruction information to a terminal device, where the third instruction information is related to a method for the terminal device to select at least one bandwidth unit from bandwidth units detected to be idle, and the terminal device selects at least one bandwidth unit from the bandwidth units detected to be idle based on the third instruction information and transmits uplink transmission on the selected at least one bandwidth unit.

[0010] In a fifth aspect of an embodiment of the present invention, there is provided an uplink scheduling method configured in a network device, including a step of the network device transmitting fourth indication information to a terminal device, where the fourth indication information is related to whether the terminal device switches the transmission bandwidth before transmitting an uplink transmission, and the terminal device switches or does not switch the transmission bandwidth before transmitting an uplink transmission based on the fourth indication information.

[0011] In a sixth aspect of an embodiment of the present invention, there is provided an uplink transmission device configured in a terminal device, including a detection unit that performs channel detection on two or more bandwidth units of a carrier, and a first transmission unit that transmits an uplink transmission on at least one bandwidth unit based on the result of the channel detection, where the at least one bandwidth unit is detected to be idle.

[0012] In a seventh aspect of an embodiment of the present invention, there is provided an uplink scheduling device configured in a network device, including a transmission unit that transmits at least one first indication information to a terminal device, where the at least one first indication information indicates at least one resource available for uplink transmission, the at least one resource corresponds to at least one bandwidth unit among two or more bandwidth units of a carrier in a frequency domain, the terminal device performs channel detection on the two or more bandwidth units, transmits an uplink transmission on at least one bandwidth unit based on the result of the channel detection, and the at least one bandwidth unit is detected to be idle.

[0013] In an eighth aspect of an embodiment of the present invention, there is provided an uplink scheduling device configured in a network device, the device including a transmitting unit that transmits second instruction information to a terminal device, where the second instruction information is related to a method for determining whether the terminal device transmits uplink transmission, and the terminal device determines whether to transmit uplink transmission based on the second instruction information.

[0014] In a ninth aspect of an embodiment of the present invention, there is provided an uplink scheduling device configured in a network device, the device including a transmitting unit that transmits third instruction information to a terminal device, where the third instruction information is related to a method for selecting at least one bandwidth unit from detected bandwidth units in which the terminal device is idle, and the terminal device selects at least one bandwidth unit from the detected bandwidth units in which the terminal device is idle based on the third instruction information and transmits uplink transmission using the selected at least one bandwidth unit.

[0015] In a tenth aspect of an embodiment of the present invention, there is provided an uplink scheduling device configured in a network device, the device including a transmitting unit that transmits fourth instruction information to a terminal device, where the fourth instruction information is related to whether to switch a transmission bandwidth before the terminal device transmits uplink transmission, and the terminal device switches or does not switch the transmission bandwidth before transmitting uplink transmission based on the fourth instruction information.

[0016] In an eleventh aspect of an embodiment of the present invention, there is provided a terminal device including the device according to the sixth aspect of the above embodiment.

[0017] In a twelfth aspect of an embodiment of the present invention, there is provided a network device including the device according to any one of the seventh to tenth aspects of the above embodiment.

[0018] In a thirteenth aspect of an embodiment of the present invention, a communication system is provided that includes the network device described in the twelfth aspect of the above embodiment and the terminal device described in the eleventh aspect of the above embodiment.

[0019] In another aspect of an embodiment of the present invention, a computer-readable program is further provided, which, when executed on a terminal device, causes a computer to execute the method described in the first aspect of the above embodiment in the terminal device.

[0020] In another aspect of an embodiment of the present invention, a storage medium storing a computer-readable program is further provided, which, when the program is executed, causes a computer to execute the method described in the first aspect of the embodiment in a terminal device.

[0021] In another aspect of an embodiment of the present invention, a computer-readable program is further provided, which, when executed on a network device, causes a computer to execute the method described in any one of the second to fifth aspects of the above embodiment in the network device.

[0022] In another aspect of an embodiment of the present invention, a storage medium storing a computer-readable program is further provided, which, when the program is executed, causes a computer to execute the method described in any one of the second to fifth aspects of the embodiment in a network device.

[0023] As an advantageous effect of an embodiment of the present invention, according to at least one aspect of the embodiment of the present invention, a terminal device can start or complete data transmission more quickly by performing channel detection in two or more bandwidth units of a carrier and determining whether each bandwidth unit is busy or idle.

[0024] As described in the following explanations and shown in the drawings, specific embodiments of the present invention are disclosed in detail, and the ways in which the principles of the present invention can be adopted are shown. It should be noted that the scope of the embodiments of the present invention is not limited to these. The embodiments of the present invention include those that are changed, modified, and equivalent within the gist and scope of the appended claims.

[0025] The features and / or characteristics described and / or shown in one embodiment may be used in one or more other embodiments in the same or similar ways, or may be combined with the features in other embodiments, or may replace the features in other embodiments.

[0026] In this text, the term "comprising / including" means that a feature, member, step, or component exists and does not exclude the existence or addition of one or more other features, members, steps, or components.

Brief Explanation of Drawings

[0027] The elements and features shown in one drawing and described in one embodiment of the present invention may be combined with the elements and features shown in one or more other drawings or embodiments. Also, in the drawings, similar reference numerals indicate corresponding elements in multiple drawings and may indicate corresponding elements used in one or more embodiments.

[0028] The included drawings are used to further understand the embodiments of the present invention, constitute a part of the specification, are used to illustrate the embodiments of the present invention, and explain the principles of the present invention together with the written description. It should be noted that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can easily conceive of other drawings based on these drawings.

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Embodiments for Carrying Out the Invention

[0029] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some of the embodiments in which the principles of the present invention can be adopted are shown. Note that the present invention is not limited to the described embodiments. The present invention includes all modified, deformed, and equivalent ones within the scope of the appended claims. The following describes each embodiment of the present invention with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0030] In the embodiments of the present invention, terms such as "first" and "second" are used to distinguish different elements in the title, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited by these terms. The term "and / or" includes any one and all combinations of one or more of the terms listed in the related list. Terms such as "include", "comprise", and "have" mean the presence of the listed features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0031] In the embodiments of the present invention, the singular forms "one", "the", etc. include the plural forms and should be understood broadly as "one type" or "one category" and are not limited to "one piece". Also, the term "the foregoing" should be understood to include both the singular and plural forms unless the context clearly indicates otherwise. Also, unless the context clearly indicates otherwise, the term "described in" should be understood as "described in at least part", and the term "based on" should be understood as "based on at least part".

[0032] In an embodiment of the present invention, the term "communication network" or "wireless communication network" may mean a network that conforms to any communication standard such as, for example, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA (registered trademark)), High-Speed Packet Access (HSPA), etc.

[0033] Also, the communication between devices in a communication system may be performed according to a communication protocol at any stage, and the communication protocol may include, for example, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), etc., and / or other currently known or future-developed communication protocols, but is not limited thereto.

[0034] In an embodiment of the present invention, the term "network device" means a device in a communication system that, for example, allows a terminal device to access the communication system and provides services to the terminal device. The network device may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobility management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0035] Among them, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), as well as a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay device, or a low-power node (e.g., femto, pico, etc.). Also, the term "base station" may include some or all of their functions, and each base station may provide communication coverage for a specific geographical area. The term "cell" may mean a base station and / or its coverage area depending on the context in which the term is used.

[0036] In an embodiment of the present invention, the term "user equipment" (UE) or the term "terminal equipment" (TE) means a device that accesses a communication network via, for example, a network device and receives network services. The terminal equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0037] Among them, the terminal equipment may include, but is not limited to, a cellular phone, a personal digital assistant (PDA), a radio transceiver, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, a smartphone, a smartwatch, a digital camera, etc.

[0038] For example, in scenarios such as the Internet of Things (IoT), the user device may be a device or apparatus that performs monitoring or measurement, and may include, for example, a Machine Type Communication (MTC) terminal, a vehicle-mounted communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc., but is not limited thereto.

[0039] The following describes the scenario of the embodiment of the present invention with reference to an example, but the present invention is not limited thereto.

[0040] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, schematically showing examples of a user device and a network device. As shown in FIG. 1, the communication system 100 may include a network device 101 and a terminal device 102. For convenience of explanation, FIG. 1 will be described by taking only one terminal device as an example. The network device 101 is, for example, a network device gNB of NR.

[0041] In an embodiment of the present invention, between the network device 101 and the terminal device 102, an existing service or a service that can be implemented in the future can be performed. For example, these services include, but are not limited to, enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), and Ultra-Reliable and Low-Latency Communication (URLLC).

[0042] Here, the terminal device 102 may transmit data to the network device 101 using, for example, a grant-free transmission method. The network device 101 may receive data transmitted by one or more terminal devices 102 and feedback information (such as an acknowledgment (ACK) / negative acknowledgment (NACK)) to the terminal device 102. The terminal device 102 may confirm the end of the transmission process based on the feedback information, or may perform new data transmission or data retransmission.

[0043] The following briefly describes several concepts related to the embodiments of the present invention to make the embodiments of the present invention easier to understand clearly.

[0044] For example, channel detection (channel detection, channel listening, or channel sensing) described below means detecting (listens to or senses) a channel to determine whether the channel is idle or busy, and may also be referred to as channel access, Listen-Before-Talk (LBT), or Clear Channel Assessment (CCA).

[0045] Also, for example, the bandwidth unit (bandwidth unit) described below may also be referred to as a BWP sub-band, a channel access sub-band, an LBT sub-band, a CCA sub-band, a channel detection, listening, or sensing sub-band, or a sub-band, etc.

[0046] Also, for example, the uplink transmission (UL transmission) described below may be a UL burst, and the UL burst may include an uplink channel and / or an uplink signal (PRACH / PUCCH / PUSCH / SRS), etc.

[0047] Also, for example, the RRC signaling described below may be an RRC message. The RRC signaling or RRC message may include system information or system messages, such as MIB, SIB, etc., and may also include cell-specific, group-specific, UE-specific RRC messages, and specific RRC IEs therein. The MAC signaling described below may be a MAC CE or the like. The physical layer signaling described below may be DCI, and DCI means downlink control information. The UL grant described below means an uplink grant or uplink license indicated via physical layer signaling or MAC signaling. The CG (Configured-Grant) described below means a configured grant or configured license. The "select" described below may be "determine". The "judgment" described below may be "determine". The "correspondence" described below may be "association".

[0048] The following describes each aspect of the embodiments of the present invention with reference to the drawings. These aspects are merely exemplary and do not limit the present invention.

[0049] <Example 1> This example provides an uplink transmission method, which is applicable to a terminal device, such as the above-mentioned UE. FIG. 2 is a schematic diagram of one of the uplink transmission methods of this example. As shown in FIG. 2, the method includes the following steps.

[0050] Step 201: The terminal device performs channel detection in two or more bandwidth units of a carrier.

[0051] Step 202: The terminal device transmits uplink transmission in at least one bandwidth unit based on the result of the channel detection. It is detected that the at least one bandwidth unit is idle.

[0052] In this embodiment, the terminal device can start or complete data transmission more quickly by performing channel detection in two or more bandwidth units of a carrier and determining whether each bandwidth unit is busy or idle.

[0053] In this embodiment, the above two or more bandwidth units are located in one BWP of the above carrier, and the BWP may be an activated BWP.

[0054] Figures 3a to 3c are schematic diagrams of the correspondence between bandwidth units and a carrier. As shown in Figure 3a, in this example, one uplink carrier (UL carrier) includes two bandwidth units, namely bandwidth unit 1 and bandwidth unit 2. These two bandwidth units are located in one UL BWP, and the UL BWP is an activated BWP. These two bandwidth units may overlap in the frequency domain. As shown in Figure 3b, in this example, one uplink carrier (UL carrier) includes two bandwidth units, namely bandwidth unit 1 and bandwidth unit 2. These two bandwidth units are located in one UL BWP, and the UL BWP is an activated BWP. These two bandwidth units partially overlap in the frequency domain. As shown in Figure 3c, in this example, one uplink carrier (UL carrier) includes three bandwidth units, namely bandwidth units 1 to 3. These three bandwidth units are located in one UL BWP, and the UL BWP is an activated BWP. Bandwidth unit 1 and bandwidth unit 2 do not overlap in the frequency domain, and bandwidth unit 3 overlaps with bandwidth unit 1 and bandwidth unit 2 respectively. The correspondence relationships in Figures 3a to 3c are merely examples, and this embodiment is not limited thereto.

[0055] In one aspect, the terminal device may receive an instruction from the network device to identify the resources available for uplink transmission. For example, the terminal device may receive at least one piece of instruction information (referred to as the first instruction information) transmitted by the network device. The at least one piece of first instruction information indicates at least one resource available for uplink transmission. The at least one resource is a resource of a CG or a resource of a UL Grant.

[0056] In this embodiment, one resource is used for one complete uplink transmission or is the corresponding time-frequency resource. Here, a complete uplink transmission means that the network device can successfully receive data or a detection signal.

[0057] For example, when a resource is used to transmit a physical random access channel (PRACH) or a signal, the resource refers to the time-frequency resource corresponding to a random access channel occasion (RO). That is, the time-frequency resource can transmit a complete preamble or a random access request, and the network device can transmit a corresponding downlink signal and / or channel, such as PDCCH, PDSCH, etc., based on the preamble or the random access request. When a resource is used to transmit a physical uplink shared channel (PUSCH) or a signal, the resource refers to the time-frequency resource corresponding to a transport block (TB). When a resource is used to transmit a physical uplink control channel (PUCCH) or a signal, the resource refers to the time-frequency resource corresponding to uplink control information (UCI). When a resource is used to transmit a sounding reference signal (SRS), the resource refers to the time-frequency resource corresponding to an SRS sequence.

[0058] In this aspect, the above-mentioned at least one first indication information may be one or plural. For example, when there are two or more of the above-mentioned at least one resource, the same signal and / or channel may be transmitted using these two or more resources. For example, both may be used to transmit a PRACH, or both may be used to transmit a PUSCH or the like. In this case, the two or more resources mentioned above may be indicated by the same first indication information, for example, may be indicated by the same physical layer signaling.

[0059] In this aspect, the at least one resource may correspond to at least one bandwidth unit among two or more bandwidth units of the carrier in the frequency domain. For example, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is two or more resources, and the start positions of the time domain of the at least one resource are the same.

[0060] Also, for example, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is one resource, and the start positions of the time domain of each partial resource corresponding to different bandwidth units of the one resource are the same.

[0061] Figures 4a to 4b are schematic diagrams of the correspondence between resources and bandwidth units. As shown in Figure 4a, in this example, two resources respectively correspond to one bandwidth unit in the frequency domain, and the time domain start positions of these two resources are the same. As shown in Figure 4b, in this example, two parts of one resource respectively correspond to one bandwidth unit, and the time domain start positions of these two parts of the resource are the same. Figures 4a and 4b are merely examples, and the present embodiment is not limited thereto. For example, one resource may correspond to one bandwidth unit as shown in Resource 1 or Resource 2 in Figure 4a, and another resource may have two or more of its parts respectively corresponding to one bandwidth unit as shown in Resource 1 in Figure 4b.

[0062] In the present embodiment, in step 201, the terminal device may determine the channel detection method for each bandwidth unit based on the instruction of the network device, or may determine the channel detection method for each bandwidth unit based on its own capabilities, and the present embodiment is not limited thereto.

[0063] In the present embodiment, each bandwidth unit may correspond to the following two channel detection methods, namely channel detection with a fixed time length and channel detection based on a random backoff mechanism.

[0064] For example, each bandwidth unit may all correspond to the channel detection method with a fixed time length, and the terminal device may perform channel detection based on a fixed time length in the two or more bandwidth units.

[0065] As another example, one of the bandwidth units corresponds to the channel detection method based on a random backoff mechanism, and the other bandwidth units correspond to the channel detection method with a fixed time length. The terminal device performs channel detection based on a random backoff mechanism in one of the two or more bandwidth units, and performs channel detection based on a fixed time length in the other bandwidth units among the two or more bandwidth units.

[0066] In this embodiment, for the specific implementation method of channel detection based on a fixed time length and a random backoff mechanism, reference may be made to the prior art, and the description thereof is omitted here.

[0067] In this embodiment, in step 202, the terminal device may transmit uplink transmission based on the number of detected idle bandwidth units among the two or more bandwidth units, the positions of the detected idle bandwidth units among the two or more bandwidth units, whether the detected idle bandwidth units among the two or more bandwidth units meet a predetermined condition, and at least one of the signals and / or channels included in the uplink transmission.

[0068] In one aspect of step 202, the terminal device determines whether to transmit uplink transmission based on at least one of the above. If the result of the determination is YES, the terminal device may transmit uplink transmission.

[0069] In this aspect, the terminal device may further receive instruction information (referred to as second instruction information) transmitted by the network device. The second instruction information is related to a method for the terminal device to determine whether to transmit uplink transmission based on at least one of the above. That is, the terminal device may refer to the second instruction information to determine whether to transmit uplink transmission based on at least one of the above.

[0070] In this aspect, as an example, the terminal device determines whether to transmit uplink transmission based on the number and / or positions of the detected idle bandwidth units among the two or more bandwidth units.

[0071] In this example, the network device may instruct, via the above second instruction information, a method for the terminal device to determine whether to transmit uplink transmission based on the number and / or positions of the detected idle bandwidth units. The terminal device performs corresponding processing based on the instruction of the second instruction information.

[0072] For example, when it is indicated by the second instruction information that uplink transmission can be sent when all bandwidth units (two or more bandwidth units of the above carriers) are idle, the terminal device determines whether it is detected that all bandwidth units are in an idle state. If the determination result is YES, the terminal device sends uplink transmission. For example, when there are a total of N bandwidth units and it is detected that M of them are idle, when N = M, the terminal device may send uplink transmission.

[0073] In another example, when it is indicated by the second instruction information that uplink transmission can be sent when some bandwidth units are idle and there are at least two consecutive bandwidth units among the idle bandwidth units, the terminal device determines whether at least two of the idle bandwidth units are consecutive. If the determination result is YES, the terminal device sends uplink transmission. For example, when there are a total of N bandwidth units and it is detected that M of them are idle, when N > M, M ≥ 1, and M ≥ 2 and they are consecutive, the terminal device may send uplink transmission. In this case, there may be a case where N and M are equal, and even when N = M, the terminal device may send uplink transmission.

[0074] In another example, when it is indicated by the second instruction information that uplink transmission can be sent when some bandwidth units are idle, the terminal device determines whether there are idle bandwidth units. If the determination result is YES, the terminal device sends uplink transmission. For example, when there are a total of N bandwidth units and it is detected that M of them are idle, when N > M, M ≥ 2, and they are not consecutive, the terminal device may send uplink transmission. There may be a case where N and M are equal, that is, when N = M, or when N and M satisfy the following relationship, that is, when N > M, M ≥ 1, and M ≥ 2 and they are consecutive, in these two cases, the terminal device may send uplink transmission.

[0075] In this example, the network device may give different instructions for each signal / channel. For example, when the priority of a signal / channel is high, such as PRACH, the network device may, via the above second instruction information, instruct some units to transmit uplink transmissions when they are idle, the details of which will be described later.

[0076] In this aspect, as an example, the terminal device determines whether to transmit an uplink transmission based on whether the detected idle bandwidth units among the two or more bandwidth units satisfy a predetermined condition.

[0077] For example, when the detected idle bandwidth unit includes a specific bandwidth unit (referred to as the first bandwidth unit), the terminal device may transmit an uplink transmission. That is, the terminal device determines whether the detected idle bandwidth unit includes the first bandwidth unit, and if the result of the determination is YES, the terminal device transmits an uplink transmission. In the above example, when the result of channel detection is partial idle (N>M, M≧1), the uplink transmission is transmitted only when the M idle bandwidth units include X (X≧1) first bandwidth units.

[0078] In this example, the first bandwidth unit may be autonomously selected by the terminal device before the terminal device performs the channel detection, or may be directly or indirectly instructed by the network device via the second instruction information.

[0079] For example, the terminal device may autonomously select the first bandwidth unit. Thus, when the detected idle bandwidth unit includes the randomly selected first bandwidth unit, the terminal device transmits an uplink transmission.

[0080] In another example, the second indication information may directly indicate the first bandwidth unit, or the second indication information may indicate a method for the network device to select the first bandwidth unit, that is, indirectly indicate the first bandwidth unit. For example, the first bandwidth unit is a bandwidth unit corresponding to an initial uplink or downlink BWP, and the network device may indirectly indicate the first bandwidth unit by indicating the initial uplink or downlink BWP via the second indication information. In another example, when the first bandwidth unit is the first bandwidth unit corresponding to the at least one resource, the network device may indirectly indicate the first bandwidth unit by indicating the position of the at least one resource via the second indication information. The first bandwidth unit is, for example, the first one among the bandwidth units sorted in ascending order in the frequency domain, including the case where the at least one resource corresponds to only one bandwidth unit.

[0081] In this example, the first bandwidth unit may be a bandwidth unit corresponding to channel detection based on random back-off among two or more bandwidth units of the carrier. Also, only one of the two or more bandwidth units of the carrier may correspond to channel detection based on random back-off. That is, when only one of the two or more bandwidth units of the carrier corresponds to channel detection based on random back-off, the first bandwidth unit may be equivalent to the bandwidth unit corresponding to channel detection based on random back-off. In this case, the terminal device autonomously selects the bandwidth unit corresponding to channel detection based on random back-off, and when the bandwidth unit corresponding to channel detection based on random back-off is included in the detected idle bandwidth unit, the terminal device may transmit an uplink transmission. Alternatively, the network device may directly or indirectly indicate the bandwidth unit corresponding to channel detection based on random back-off via the second indication information, and the terminal device may transmit an uplink transmission when the bandwidth unit corresponding to channel detection based on random back-off is included in the detected idle bandwidth unit.

[0082] In this example, for instance, when the bandwidth unit corresponding to a fixed time length among two or more bandwidth units is indicated by the above indirect indication, the terminal device selects a bandwidth unit based on random back-off from other bandwidth units. The fixed time length means not based on random back-off, and the corresponding length may vary according to the situation.

[0083] In this aspect, an example is that the terminal device determines whether to transmit an uplink transmission based on the signal and / or channel included in the uplink transmission.

[0084] For example, the above signal and / or channel may have a correspondence with the situation for transmitting uplink transmission. For example, when some bandwidth units are idle and a first type of signal can be transmitted, the terminal device may determine whether to transmit the uplink transmission based on the signal and / or channel included in the uplink transmission. For example, since PRACH can be transmitted when some bandwidth units are idle, when the uplink transmission is PRACH, when idle bandwidth units are detected, the terminal device transmits the uplink transmission. The above is merely an example, and this embodiment is not limited thereto.

[0085] The above uses several examples to explain the method for the terminal device to determine whether to transmit uplink transmission based on at least one of them in step 202. The above examples may be arbitrarily combined, and the description thereof is omitted here.

[0086] In another aspect of step 202, the terminal device may select at least one of the bandwidth units from the detected idle bandwidth units based on at least one of them and transmit the uplink transmission using the selected at least one bandwidth unit.

[0087] In this aspect, the terminal device may further receive instruction information (referred to as the third instruction information) transmitted by the network device. The third instruction information is related to the method for the terminal device to select at least one of the bandwidth units from the detected idle bandwidth units. That is, the terminal device may refer to the third instruction information and select at least one of the bandwidth units from the detected idle bandwidth units based on at least one of them.

[0088] In this aspect, the terminal device may autonomously select at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one. And / or, the terminal device may select at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one and / or an instruction from the network device (for example, the third instruction information).

[0089] For example, when the third instruction information instructs "random selection", the terminal device may randomly select at least one bandwidth unit from the bandwidth units detected to be idle based on the third instruction information.

[0090] As another example, when the third instruction information instructs "select based on a specific bandwidth unit", the terminal device may select at least one bandwidth unit including the specific bandwidth unit (referred to as the second bandwidth unit) from the bandwidth units detected to be idle based on the third instruction information.

[0091] As another example, when the third instruction information instructs "selection based on grouping and / or ordering", the terminal device may group and / or order at least two bandwidth units of the carrier for which channel detection is performed from the bandwidth units detected to be idle, and select at least one bandwidth unit according to the result of the grouping and / or ordering. Or, when the third instruction information instructs grouping and / or ordering of at least two bandwidth units of the carrier, the terminal device may select at least one bandwidth unit according to the result of the grouping and / or ordering.

[0092] In this aspect, the definition of the second bandwidth unit is the same as that of the first bandwidth unit, and the second bandwidth unit may be the same as or different from the first bandwidth unit. In this aspect, the second bandwidth unit may be autonomously selected by the terminal device or may be instructed by the network device. For example, it may be instructed via the third instruction information. The instruction method is the same as the method of instructing the first bandwidth unit via the second instruction information. For example, the third instruction information may directly instruct the second bandwidth unit, or the third instruction information may instruct the method by which the terminal device selects the second bandwidth unit, that is, indirectly instruct the second bandwidth unit. For example, the second bandwidth unit is a bandwidth unit corresponding to the initial uplink or downlink BWP, and the network device may indirectly instruct the second bandwidth unit by instructing the initial uplink or downlink BWP via the third instruction information. In another example, when the second bandwidth unit is the first bandwidth unit corresponding to the at least one resource, the network device may indirectly instruct the second bandwidth unit by instructing the position of the at least one resource via the third instruction information. The first bandwidth unit is, for example, the first one among the bandwidth units sorted in ascending order in the frequency domain, including the case where the at least one resource corresponds to only one bandwidth unit.

[0093] In this example, the second bandwidth unit may be a bandwidth unit corresponding to channel detection based on random back-off among two or more bandwidth units of the carrier. Also, only one of the two or more bandwidth units of the carrier may correspond to channel detection based on random back-off. That is, when only one of the two or more bandwidth units of the carrier corresponds to channel detection based on random back-off, the second bandwidth unit may be equivalent to the bandwidth unit corresponding to channel detection based on random back-off. In this case, the terminal device autonomously selects the bandwidth unit corresponding to channel detection based on random back-off, and when the bandwidth unit detected as idle includes the bandwidth unit corresponding to channel detection based on random back-off, the terminal device may transmit an uplink transmission. Alternatively, the network device may directly or indirectly indicate the bandwidth unit corresponding to channel detection based on random back-off via the third indication information, and the terminal device may transmit an uplink transmission when the bandwidth unit detected as idle includes the bandwidth unit corresponding to channel detection based on random back-off.

[0094] In this example, for instance, when the bandwidth unit corresponding to a fixed time length among two or more bandwidth units is indicated by the above indirect indication, the terminal device selects a bandwidth unit based on random back-off from other bandwidth units. The fixed time length means not based on random back-off, and the corresponding length may vary according to the situation.

[0095] In this aspect, when the second bandwidth unit is the same as the first bandwidth unit, the third indication information and the second indication information may be the same.

[0096] In this aspect, at least one of the above bandwidth units is the M bandwidth units in the above example, and may include only one bandwidth unit, that is, M = 1. Alternatively, it may include two or more bandwidth units and may be continuous or discontinuous in the frequency domain. That is, M ≥ 2 and may be continuous or discontinuous.

[0097] Figs. 5a to 5d are schematic diagrams of the selection of bandwidth units. As shown in Fig. 5a, in this example, the terminal device performs channel detection using two bandwidth units corresponding to the uplink carrier. These two bandwidth units are located in the UL BWP. If the detection result is idle in bandwidth unit 1 and busy in bandwidth unit 2, the terminal device may select bandwidth unit 1 to perform uplink transmission (PRACH). As shown in Fig. 5b, in this example, different from the example of Fig. 5a, the detection result is idle in both of the two bandwidth units, and the terminal device may select one of them, for example, select bandwidth unit 1 to perform uplink transmission (PRACH). As shown in Fig. 5c, in this example, the terminal device performs uplink transmission using four bandwidth units corresponding to the uplink carrier, and these four bandwidth units are located in the UL BWP. If the detection result is idle in bandwidth units 1 to 2 and 4 and busy in bandwidth unit 3, the terminal device may select bandwidth unit 1 and bandwidth unit 2 to transmit uplink transmission (PUSCH). As shown in Fig. 5d, in this example, different from the example of Fig. 5c, only bandwidth unit 2 and bandwidth unit 3 each correspond to one resource, and both bandwidth unit 1 and bandwidth unit 2 are idle, but the terminal device selects bandwidth unit 2 to perform uplink transmission (PRACH).

[0098] Note that in FIG. 5d, the terminal device performs channel detection on all bandwidth units 1 to 4 in the UL BWP or UL carrier. However, the present invention is not limited thereto, and the terminal device may perform channel detection only on the bandwidth units corresponding to the resources. For example, channel detection is performed only on bandwidth units 2 to 3 corresponding to resources 1 to 2.

[0099] In still another aspect of step 202, the terminal device may switch the transmission bandwidth or not switch the transmission bandwidth before transmitting the uplink transmission based on the at least one. For example, the terminal device determines whether to switch the transmission bandwidth based on the at least one, and / or an instruction from the network device, and / or the capability of the terminal device. If the result of the determination is YES, the terminal device may switch the transmission bandwidth before transmitting the uplink transmission.

[0100] In this aspect, the terminal device may further receive instruction information (referred to as fourth instruction information) transmitted by the network device. The fourth instruction information is related to whether to switch the transmission bandwidth before the terminal device transmits the uplink transmission. That is, the terminal device may refer to the fourth instruction information and switch the transmission bandwidth or not switch the transmission bandwidth before transmitting the uplink transmission according to the at least one and / or the capability of the terminal device.

[0101] In this aspect, it is assumed that the number of bandwidth units for transmitting the uplink transmission is K, where K≥1. If the terminal device is permitted to transmit the uplink transmission using some of the bandwidth units K' (K'<K), the network device may indicate via the fourth instruction information whether it is necessary to switch the transmission bandwidth before the terminal device transmits the uplink transmission.

[0102] For example, according to the degree of channel congestion, the network device may indicate whether the terminal device needs to switch the transmission bandwidth before transmitting the uplink transmission via the fourth instruction information. When the channel is congested, the terminal device may be instructed to switch the transmission bandwidth before transmitting the uplink transmission so as to reduce the impact of the uplink transmission of the terminal device on other devices. Otherwise, the terminal device may be instructed not to switch the transmission bandwidth before transmitting the uplink transmission.

[0103] As another example, the terminal device may determine whether it is necessary to switch the transmission bandwidth based on the signal and / or channel included in the uplink transmission. For example, when the signal or channel included in the uplink transmission is a PRACH, the transmission bandwidth is not switched; otherwise, the transmission bandwidth is switched so as to reduce the impact on other devices.

[0104] In this example, the PRACH is used as an example for explanation, but the present embodiment is not limited thereto. In a specific implementation process, whether to switch the transmission bandwidth and the signal and / or channel included in the uplink transmission have a corresponding relationship. For example, the first type of signal and / or channel corresponds to switching the transmission bandwidth, and the second type of signal and / or channel corresponds to not switching the transmission bandwidth. Thereby, the terminal device can determine whether to switch the transmission bandwidth based on the signal and / or channel included in the uplink transmission.

[0105] The above has described, by taking three modes as an example, a method for a terminal device to transmit uplink transmission based on at least one of them. In a specific implementation process, the above three modes may be arbitrarily combined. For example, the terminal device only determines whether to transmit uplink transmission, does not select the at least one bandwidth unit, and does not switch the transmission bandwidth. Or, the terminal device determines whether to transmit uplink transmission, selects the at least one bandwidth unit, but may not perform operations such as switching the transmission bandwidth, and the description thereof is omitted here.

[0106] In this embodiment, the above indication information (the first to fourth indication information) may be any information or signaling among physical layer signaling, media access control (MAC) layer signaling, and radio resource control (RRC) signaling.

[0107] In this embodiment, considering the hardware cost of the terminal device, the cell or system may include both a terminal device that supports the capability and a terminal device that does not support the capability. In this case, in order to achieve better coexistence (resource coordination) between terminal devices or different systems, the terminal device may notify (report) the network device of information related to the capability. The network device may schedule the terminal device based on the information. For example, the network device may perform resource allocation / indication, indication of a channel detection method, and indication of a method for the terminal device to transmit data based on the channel detection result.

[0108] In one mode, the terminal device may transmit indication information (referred to as the fifth indication information) to the network device. The fifth indication information directly or indirectly indicates the capability of the terminal device, and the capability directly or indirectly represents whether the terminal device supports switching the transmission bandwidth within a predetermined time range after channel detection and / or whether the terminal device supports simultaneously transmitting uplink transmission using discontinuous bandwidth units among two or more bandwidth units of a carrier.

[0109] In this aspect, when the network device determines that the terminal device does not have the above capabilities or does not support them, the network device does not permit the transmission of uplink transmissions when a part of the bandwidth unit is idle so as not to affect the data transmission and reception of other devices. The above is just an example. Preferably, the network device may further indicate signals and / or channels that can be used to transmit uplink transmissions when some of the bandwidth units are idle, or may indicate signals and / or channels that can be used to transmit uplinks when all of the bandwidth units are idle. FIG. 6 is an overall flowchart of one of the uplink transmission methods of this embodiment. Although this flowchart describes possible operations of the terminal device, as described above, some steps may be selected according to the channel detection result, the indication of the network device, its own capabilities, or predefined rules. Also, some steps may be added or some steps may be deleted.

[0110] As shown in FIG. 6, the method includes the following steps.

[0111] Step 601: Report capabilities.

[0112] Step 602: Obtain resources from the network device based on the indication of the network device.

[0113] Step 603: Perform channel detection based on predefined rules and / or indications of the network device. If the channel detection result is not idle, execute Step 604. If the channel detection result is partially idle and discontinuous, execute Step 605. If the channel detection result is partially idle and continuous, execute Step 606. If the channel detection result is all idle, execute Step 607 or Step 609.

[0114] Step 604: Confirm that the uplink transmission has failed, return to step 602 to reacquire resources, or return to step 603 to re-execute channel detection with the next resource.

[0115] Step 605: Determine whether to send an uplink transmission based on pre-defined rules and / or instructions from the network device. If the result of the determination is NO, return to step 604; if the result of the determination is YES, execute step 607.

[0116] Step 606: Determine whether to send an uplink transmission based on pre-defined rules and / or instructions from the network device. If the result of the determination is NO, return to step 604; if the result of the determination is YES, execute step 607.

[0117] Step 607: Select or determine a bandwidth unit based on pre-defined rules and / or instructions from the network device.

[0118] Step 608: Switch the transmission bandwidth based on pre-defined rules and / or instructions from the network device.

[0119] Step 609: Send an uplink transmission.

[0120] According to the method of this embodiment, the terminal device can perform channel detection on two or more bandwidth units of a carrier, and determine whether each bandwidth unit is busy or idle, so as to start or complete data transmission more quickly.

[0121] <Example 2> This embodiment provides an uplink scheduling method, which is applicable to a network device, such as the above-mentioned gNB, etc. This method is the network-side processing corresponding to the method of Embodiment 1, and the description of the same content as in Embodiment 1 is omitted.

[0122] FIG. 7 is a schematic diagram of the uplink scheduling method of this embodiment. As shown in FIG. 7, the method includes the following steps.

[0123] Step 701: The network device transmits at least one piece of first indication information to the terminal device. The at least one piece of first indication information indicates at least one resource available for uplink transmission, and the at least one resource corresponds to at least one bandwidth unit among two or more bandwidth units of a carrier in the frequency domain.

[0124] In this embodiment, after the terminal device tunes to the first indication information, it performs channel detection on the two or more bandwidth units, and based on the result of the channel detection, it may transmit uplink transmission on at least one bandwidth unit detected to be idle. As described in Embodiment 1, the two or more bandwidth units are located in one BWP, and the BWP may be an activated BWP.

[0125] In this embodiment, one of the at least one resource means the time-frequency resource used for complete uplink transmission.

[0126] In one aspect, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is two or more resources, and the start positions of the at least one resource in the time domain are the same.

[0127] In another aspect, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is one resource, and the start positions of the time domains of each partial resource corresponding to different bandwidth units of the one resource are the same.

[0128] In this embodiment, the at least one resource is used to transmit the same signal and / or channel, and the at least one first indication information used to indicate the at least one resource is one piece of first indication information. The content of the first indication information is described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0129] In this embodiment, the network device may further transmit second indication information to the terminal device. The second indication information is related to a method for the terminal device to determine whether to transmit uplink transmission. The content of the second indication information and the operation of the terminal device are described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0130] In this embodiment, the network device may further transmit third indication information to the terminal device. The third indication information is related to a method for the terminal device to select the at least one bandwidth unit from the detected bandwidth units that are idle. The content of the third indication information and the operation of the terminal device are described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0131] In this embodiment, the network device may further transmit fourth indication information to the terminal device. The fourth indication information is related to whether the terminal device switches the transmission bandwidth before transmitting uplink transmission. The content of the fourth indication information and the operation of the terminal device are described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0132] In this embodiment, the network device may further receive fifth instruction information sent by the terminal device. The fifth instruction information indicates the capabilities of the terminal device, and the capabilities directly or indirectly indicate whether the terminal device supports switching the transmission bandwidth within a predetermined time range after channel detection and / or whether the terminal device supports simultaneously transmitting uplink transmissions using discontinuous bandwidth units among two or more bandwidth units of the carrier. The content of the fifth instruction information and the operations of the terminal device are described in Embodiment 1, and the content thereof is incorporated herein by reference and the description thereof is omitted.

[0133] In this embodiment, the network device may interact with other network devices to cooperate on resources. The information is related to the channel detection and / or data transmission and reception methods employed by the network device and / or the terminal devices served by the network device. For example, the information is used to indicate the primary bandwidth unit for channel detection and / or data transmission of the network device and / or the terminal devices served by the network device, and / or is used to indicate whether the network device and / or the terminal devices served by the network device support switching the transmission bandwidth within a predetermined time range after channel detection. This embodiment is not limited to the manner of information interaction and the manner of resource cooperation.

[0134] FIG. 8 is another schematic diagram of the uplink scheduling method of this embodiment. As shown in FIG. 8, the method includes the following steps.

[0135] Step 801: The network device transmits second instruction information to the terminal device. The second instruction information is related to a method for the terminal device to determine whether to transmit an uplink transmission, and the terminal device determines whether to transmit an uplink transmission based on the second instruction information.

[0136] In this embodiment, the content of the second instruction information and the operations of the terminal device are as described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0137] According to this embodiment, the terminal device can determine whether to send an uplink transmission based on the instruction of the network device. The specific determination method is as described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0138] FIG. 9 is another schematic diagram of the uplink scheduling method of this embodiment. As shown in FIG. 9, the method includes the following steps.

[0139] Step 901: The network device sends third instruction information to the terminal device. The third instruction information is related to a method for selecting at least one bandwidth unit from the detected bandwidth units in which the terminal device is idle, and the terminal device selects at least one bandwidth unit from the detected bandwidth units in which the terminal device is idle based on the third instruction information, and sends an uplink transmission using the selected at least one bandwidth unit.

[0140] In this embodiment, the content of the third instruction information and the operations of the terminal device are as described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0141] According to this embodiment, the terminal device can select at least one bandwidth unit from the bandwidth units detected to be idle based on the instruction of the network device. The specific selection method is as described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0142] FIG. 10 is another schematic diagram of the uplink scheduling method of this embodiment. As shown in FIG. 10, the method includes the following steps.

[0143] Step 1001: The network device transmits fourth instruction information to the terminal device. The fourth instruction information is related to whether the terminal device switches the transmission bandwidth before transmitting uplink transmission. The terminal device switches or does not switch the transmission bandwidth before transmitting uplink transmission based on the fourth instruction information.

[0144] In this embodiment, the content of the fourth instruction information and the operation of the terminal device are described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0145] According to this embodiment, the terminal device can determine whether to switch the transmission bandwidth before transmitting uplink transmission based on the instruction of the network device. The specific determination method is described in Embodiment 1, and the content is incorporated herein by reference and the description thereof is omitted.

[0146] FIG. 11 is another schematic diagram of the uplink scheduling method of this embodiment. As shown in FIG. 11, the method includes the following steps.

[0147] Step 1101: The network device performs information interaction with other network devices to cooperate resources. The information is related to the channel detection and / or data transmission / reception method adopted by the network device and / or the terminal device served by the network device.

[0148] In this aspect, the information is used to indicate the main bandwidth unit for channel detection and / or data transmission of the network device and / or the terminal device served by the network device, and / or is used to indicate whether to support the network device and / or the terminal device served by the network device to switch the transmission bandwidth within a predetermined time range after channel detection. Regarding the information interaction method and the resource cooperation method, this embodiment is not limited thereto.

[0149] Figure 12 is an overall flowchart of the method of this embodiment. In this flowchart, the possible operations of the network device are described. However, as described above, some steps are optional. Also, based on this, some steps may be added or some steps may be deleted.

[0150] As shown in Figure 12, the method includes the following steps.

[0151] Step 1201: Indicate resources.

[0152] Step 1202: Indicate the channel detection method.

[0153] Step 1203: Indicate the method of sending uplink transmission based on the channel detection result.

[0154] In steps 1201 to 1203, the network device may perform corresponding processing based on the capabilities reported by the terminal device and / or the results of information interaction with other network devices.

[0155] According to the method of this embodiment, the terminal device can perform channel detection in two or more bandwidth units of the carrier, and determine whether each bandwidth unit is busy or idle, so as to start or complete data transmission more quickly.

[0156] <Example 3> This embodiment provides an uplink transmission device, and the device may be applied to a terminal device. Since the principle of problem solving of the device is similar to that of the method of Embodiment 1, the specific implementation thereof may refer to the implementation of the method of Embodiment 1, and the description of the same content is omitted.

[0157] Figure 13 is a schematic diagram of the uplink transmission apparatus according to this embodiment. As shown in Figure 13, the uplink transmission apparatus 1300 includes a detection unit 1301 and a first transmission unit 1302. The detection unit 1301 performs channel detection on two or more bandwidth units of a carrier. The first transmission unit 1302 transmits uplink transmission on at least one bandwidth unit based on the result of the channel detection. It is detected that the at least one bandwidth unit is idle.

[0158] In this embodiment, as shown in Figure 13, the apparatus 1300 may further include a first reception unit 1303.

[0159] The first reception unit 1303 receives at least one first instruction information transmitted by a network apparatus. The at least one first instruction information indicates at least one resource available for uplink transmission.

[0160] In this embodiment, one of the at least one resources is a time-frequency resource used for complete uplink transmission.

[0161] In this embodiment, the at least one resource corresponds to at least one bandwidth unit among two or more bandwidth units of the carrier in the frequency domain.

[0162] For example, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is two or more resources, and the start positions of the at least one resource in the time domain are the same.

[0163] Also, for example, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is one resource, and the start positions of each partial resource corresponding to different bandwidth units of the one resource in the time domain are the same.

[0164] In this embodiment, the at least one resource is used to transmit the same signal and / or channel, and the at least one first indication information for indicating the at least one resource is one piece of first indication information.

[0165] In this embodiment, the first transmitting unit 1302 may transmit the uplink transmission based on the number of bandwidth units detected to be idle among the two or more bandwidth units, the positions of the bandwidth units detected to be idle among the two or more bandwidth units, whether the bandwidth units detected to be idle among the two or more bandwidth units meet a predetermined condition, and at least one of the signals and / or channels included in the uplink transmission.

[0166] In one aspect, the first transmitting unit 1302 determines whether to transmit an uplink transmission based on the at least one. If the result of the determination is YES, the uplink transmission may be transmitted.

[0167] In this aspect, as shown in FIG. 13, the apparatus 1300 may further include a second receiving unit 1304.

[0168] The second receiving unit 1304 receives second indication information transmitted by the network. The second indication information is related to a method for the first transmitting unit 1302 to determine whether to transmit an uplink transmission based on the at least one.

[0169] In this aspect, whether the bandwidth units detected to be idle meet a predetermined condition may be whether a first bandwidth unit is included in the bandwidth units detected to be idle. That is, the first transmitting unit 1302 determines whether a first bandwidth unit is included in the bandwidth units detected to be idle. If the result of the determination is YES, the uplink transmission is transmitted.

[0170] In this aspect, the first bandwidth unit may be a bandwidth unit corresponding to channel detection based on random back-off among the two or more bandwidth units. Also, only one of the two or more bandwidth units may correspond to channel detection based on random back-off.

[0171] In this aspect, the first bandwidth unit may be selected before the terminal device performs the channel detection and / or may be instructed by the network device, for example, may be instructed via the second instruction information.

[0172] In another aspect, the first transmission unit 1302 may select the at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one, and transmit uplink transmission on the selected at least one bandwidth unit.

[0173] In this aspect, as shown in FIG. 13, the apparatus 1300 may further include a third reception unit 1305.

[0174] The third reception unit 1305 receives third instruction information transmitted by the network device. The third instruction information is related to a method for the first transmission unit 1302 to select the at least one bandwidth unit from the bandwidth units detected to be idle.

[0175] In this aspect, the first transmission unit 1302 may autonomously select the at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one, and / or the first transmission unit 1302 may select the at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one and / or an instruction from the network device.

[0176] For example, the first transmission unit 1302 may randomly select the at least one bandwidth unit from the bandwidth units detected to be idle based on the third instruction information. Alternatively, the first transmission unit 1302 may select the at least one bandwidth unit including the second bandwidth unit from the bandwidth units detected to be idle based on the third instruction information. Alternatively, the first transmission unit 1302 may group and / or order the bandwidth units detected to be idle or the two or more bandwidth units for channel detection based on the third instruction information, and select the at least one bandwidth unit according to the result of the grouping and / or ordering.

[0177] In this aspect, the at least one bandwidth unit includes one bandwidth unit, or the at least one bandwidth unit includes two or more bandwidth units and is continuous or discontinuous in the frequency domain.

[0178] In another aspect, the first transmission unit 1302 may switch the transmission bandwidth or not switch the transmission bandwidth before transmitting the uplink transmission based on the at least one.

[0179] For example, the first transmission unit 1302 determines whether to switch the transmission bandwidth before transmitting the uplink transmission based on the at least one, and / or an instruction of the network device, and / or the capability of the terminal device. If the result of the determination is YES, the transmission bandwidth may be switched before transmitting the uplink transmission.

[0180] In this aspect, as shown in FIG. 13, the device 1300 may further include a fourth receiving unit 1306.

[0181] The fourth receiving unit 1306 receives fourth instruction information transmitted by the network device. The fourth instruction information is related to whether the terminal device switches the transmission bandwidth before transmitting the uplink transmission.

[0182] In this embodiment, as shown in FIG. 13, the apparatus 1300 may further include a second transmission unit 1307.

[0183] The second transmission unit 1307 transmits fifth indication information to the network device. The fifth indication information directly or indirectly indicates the capabilities of the terminal device, and the capabilities directly or indirectly represent whether the terminal device supports switching the transmission bandwidth within a predetermined time range after channel detection, and / or whether the terminal device supports simultaneously performing uplink transmission using discontinuous bandwidth units among two or more bandwidth units of the carrier.

[0184] According to the apparatus of this embodiment, the terminal device can perform channel detection on two or more bandwidth units of the carrier, and determine whether each bandwidth unit is busy or idle, so as to more quickly start or complete data transmission.

[0185] <Example 4> This embodiment provides an uplink scheduling apparatus, which may be applied to a network device. Since the principle of problem solving of this apparatus is similar to that of the method in Embodiment 2, the specific implementation thereof may refer to the implementation of the method in Embodiment 2, and the description of similar content is omitted.

[0186] FIG. 14 is a schematic diagram of the uplink scheduling apparatus according to an embodiment of the present invention. As shown in FIG. 14, the uplink scheduling apparatus 1400 includes a transmission unit 1401.

[0187] The transmitting unit 1401 transmits at least one first instruction information to the terminal device. The at least one first instruction information indicates at least one resource available for uplink transmission. The at least one resource corresponds to at least one bandwidth unit among two or more bandwidth units of a carrier in the frequency domain. The terminal device performs channel detection in the two or more bandwidth units and transmits uplink transmission in at least one bandwidth unit detected to be idle based on the result of the channel detection.

[0188] In this embodiment, one of the at least one resources is a time-frequency resource used for complete uplink transmission.

[0189] In one aspect, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units. The at least one resource is two or more resources, and the start position of the time domain of the at least one resource is the same.

[0190] In another aspect, at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units. The at least one resource is one resource, and the start position of the time domain of each partial resource corresponding to different bandwidth units of the one resource is the same.

[0191] In this embodiment, the at least one resource is used to transmit the same signal and / or channel, and the at least one first instruction information for indicating the at least one resource is one first instruction information.

[0192] In this embodiment, the transmitting unit 1401 may further transmit second instruction information to the terminal device. The second instruction information is related to a method for the terminal device to determine whether to transmit uplink transmission. The terminal device may determine whether to transmit uplink transmission based on the second instruction information.

[0193] In this embodiment, the transmitting unit 1401 may further transmit third instruction information to the terminal device, and the third instruction information is related to a method for the terminal device to select at least one bandwidth unit from the detected bandwidth units that are idle. The terminal device may select at least one bandwidth unit from the detected bandwidth units that are idle based on the third instruction information, and may perform uplink transmission using the selected at least one bandwidth unit.

[0194] In this embodiment, the transmitting unit 1401 may further transmit fourth instruction information to the terminal device, and the fourth instruction information is related to whether to switch the transmission bandwidth before the terminal device transmits uplink transmission. The terminal device may switch or not switch the transmission bandwidth before transmitting uplink transmission based on the fourth instruction information.

[0195] In this embodiment, as shown in FIG. 14, the apparatus 1400 may further include a receiving unit 1402.

[0196] The receiving unit 1402 receives fifth instruction information transmitted by the terminal device. The fifth instruction information directly or indirectly indicates the capabilities of the terminal device, and the capabilities directly or indirectly represent whether the terminal device supports switching the transmission bandwidth within a predetermined time range after channel detection, and / or whether the terminal device supports simultaneously performing uplink transmission using discontinuous bandwidth units among two or more bandwidth units of the carrier.

[0197] In this embodiment, as shown in FIG. 14, the apparatus 1400 may further include an interaction unit 1403.

[0198] The interaction unit 1403 interacts with other network devices to coordinate resources. The information is related to the channel detection and / or data transmission / reception methods employed by the network device and / or the terminal device served by the network device. For example, the information is used to indicate the main bandwidth unit for channel detection and / or data transmission of the network device and / or the terminal device served by the network device, and / or may be used to indicate whether the network device and / or the terminal device served by the network device supports switching the transmission bandwidth within a predetermined time range after channel detection.

[0199] In this embodiment, the above second instruction information, third instruction information, and fourth instruction information may not depend on the transmission of the first instruction information and the reception of the fifth instruction information. That is, the uplink scheduling device 1400 may include only the transmission unit 1401 that transmits the second instruction information, or may include only the transmission unit 1401 that transmits the third instruction information, or may include only the transmission unit 1401 that transmits the fourth instruction information. Since its operation has already been described above, the description thereof is omitted here.

[0200] Also, in this embodiment, the above interaction unit 1403 may not depend on the transmission or reception of the above instruction information. That is, the uplink scheduling device 1400 may include only the above interaction unit 1403. Since its operation has already been described above, the description thereof is omitted here.

[0201] According to the device of this embodiment, the terminal device can perform channel detection on two or more bandwidth units of the carrier and determine whether each bandwidth unit is busy or idle, so as to start or complete data transmission more quickly.

[0202] <Example 5> This embodiment provides a terminal device. Here, the terminal device includes the device 1300 of Embodiment 3.

[0203] FIG. 15 is a schematic diagram of the terminal device of this embodiment. As shown in FIG. 15, the terminal device 1500 may include a central processing unit (CPU, processor) 1501 and a memory 1502, and the memory 1502 is connected to the central processing unit 1501. Note that this figure is exemplary, and other types of structures may be used to supplement or replace this structure to implement communication functions or other functions.

[0204] In one aspect, the functions of the device of Example 3 may be integrated into the central processing unit 1501, and the functions of the device 1300 of Example 3 may be realized by the central processing unit 1501. The functions of the device 1300 of Example 3 are hereby incorporated by reference, and the description thereof is omitted.

[0205] In another aspect, the device 1300 of Example 3 may be arranged separately from the central processing unit 1501. For example, the device 1300 of Example 3 is a chip connected to the central processing unit 1501, and the functions of the device 1300 of Example 3 may be realized under the control of the central processing unit 1501.

[0206] Also, as shown in FIG. 15, the terminal device 1500 may further include a communication module 1503, an input unit 1504, an audio processing unit 1505, a display 1506, and a power supply 1507. Note that the terminal device 1500 does not necessarily include all the units shown in FIG. 15. Also, the terminal device 1500 may further include units not shown in FIG. 15, and reference may be made to the prior art.

[0207] As shown in FIG. 15, the central processing unit 1501 is also referred to as a controller or an operation control unit, and may include a microprocessor or other processing device and / or logic device. The central processing unit 1501 receives inputs and controls the operations of each part of the terminal device 1500.

[0208] Here, the memory 1502 may be one or more of, for example, a buffer, a flash memory, a hard disk, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices, and stores programs for executing various data and related information. Also, the central processing unit 1501 may execute the programs stored in the memory 1502 to realize storage or processing of information, etc. Since other members are similar to the prior art, the description thereof is omitted here. Each part of the terminal device 1500 may be realized by specific hardware, firmware, software, or a combination thereof without departing from the scope of the present invention.

[0209] According to the terminal device of this embodiment, the terminal device can start or complete data transmission more quickly by performing channel detection in two or more bandwidth units of a carrier and determining whether each bandwidth unit is busy or idle.

[0210] <Example 6> This embodiment provides a network device, such as a gNB (base station in NR), etc. Here, the network device includes the device 1400 of Embodiment 4.

[0211] FIG. 16 is a schematic diagram of the network device of this embodiment. As shown in FIG. 16, the network device 1600 may include a central processing unit (CPU, processor) 1601 and a memory 1602, and the memory 1602 is connected to the central processing unit 1601. The memory 1602 may store various data, further store a program for information processing, execute the program under the control of the central processing unit 1601, receive various information transmitted by the terminal device, and transmit various information to the terminal device.

[0212] In one aspect, the functions of the device 1400 of Embodiment 4 are integrated into the central processing unit 1601, and here, the functions of the device 1400 of Embodiment 4 may be realized by the central processing unit 1601. The functions of the device 1400 of Embodiment 4 are incorporated herein by reference and the description thereof is omitted.

[0213] In another aspect, the apparatus 1400 of Example 4 may be arranged with the central processing unit 1601 respectively. For example, the apparatus 1400 of Example 4 is a chip connected to the central processing unit 1601, and the functions of the apparatus 1400 of Example 4 may be realized under the control of the central processing unit 1601.

[0214] Also, as shown in FIG. 16, the network apparatus 1600 may further include a transceiver 1603, an antenna 1604, etc. The functions of the above members are similar to those of the prior art, and the description thereof is omitted here. Note that the network apparatus 1600 does not necessarily include all the units shown in FIG. 16. Also, the network apparatus 1600 may further include units not shown in FIG. 16, and reference may be made to the prior art.

[0215] According to the network apparatus of this embodiment, the terminal apparatus can start or complete data transmission more quickly by detecting channels in two or more bandwidth units of a carrier and determining whether each bandwidth unit is busy or idle.

[0216] <Example 7> This embodiment provides a communication system including a network apparatus and a terminal apparatus. The network apparatus is, for example, the network apparatus 1600 described in Example 6, and the terminal apparatus is, for example, the terminal apparatus 1500 described in Example 5.

[0217] In this embodiment, the network apparatus may be, for example, a gNB in NR, may include the functions of the apparatus 1400 of Example 4, may implement the method of Example 2, and may further include the conventional configuration and functions of the network apparatus, and the description thereof is omitted here.

[0218] In this embodiment, the terminal apparatus may be, for example, a UE served by a gNB, may include the functions of the apparatus 1300 of Example 3, may implement the method of Example 1, and may further include the conventional configuration and functions of the terminal apparatus, and the description thereof is omitted here.

[0219] According to the communication system of this embodiment, the terminal device can start or complete data transmission more quickly by detecting channels in two or more bandwidth units of a carrier and determining whether each bandwidth unit is busy or idle.

[0220] In an embodiment of the present invention, there is further provided a computer-readable program which, when executed on a terminal device, causes a computer to execute the method described in the above Example 1 in the receiving device.

[0221] In an embodiment of the present invention, there is further provided a storage medium storing a computer-readable program which, when executed, causes a computer to execute the method described in Example 1 in a terminal device.

[0222] In an embodiment of the present invention, there is further provided a computer-readable program which, when executed on a network device, causes a computer to execute the method described in the above Example 2 in the network device.

[0223] In an embodiment of the present invention, there is further provided a storage medium storing a computer-readable program which, when executed, causes a computer to execute the method described in Example 2 in a network device.

[0224] The above devices and methods of the present invention may be implemented by hardware or may be implemented by combining hardware and software. The present invention relates to a computer-readable program which, when executed by a logic unit, can cause the logic unit to implement the above-described device or component, or can cause the logic unit to implement the above-described various methods or steps. The present invention relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0225] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more in the functional block diagrams shown in the drawings, or one or more combinations of the functional block diagrams, may correspond to each software module of the computer program flow, or may correspond to each hardware module. These software modules may each correspond to each step shown in the drawings. These hardware modules may be realized by hardware-implementing these software modules using, for example, a field programmable gate array (FPGA).

[0226] The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor reads information from the storage medium or writes information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or may be stored in a memory card inserted into the mobile terminal. For example, when a device (such as a mobile terminal) uses a relatively large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0227] One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams described in the drawings may be implemented by a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described in this application. One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams described in the drawings may be implemented, for example, by a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with DSP communication, or any other configuration.

[0228] The present invention has been described above with reference to specific embodiments, but the above description is merely exemplary and does not limit the scope of protection of the present invention. Without departing from the spirit and principle of the present invention, various modifications and changes may be made to the present invention, and these modifications and changes are also within the scope of the present invention.

[0229] In addition, the following supplementary notes are disclosed regarding the embodiments including the above-described embodiments. (Supplementary Note 1) An uplink transmission device configured in a terminal device, a detection unit that performs channel detection in two or more bandwidth units of a carrier, a first transmission unit that transmits uplink transmission in at least one bandwidth unit based on the result of the channel detection, the first transmission unit being detected that the at least one bandwidth unit is idle, and the device includes the first transmission unit. (Supplementary Note 2) A first receiving unit that receives at least one first instruction information transmitted by a network device, where the at least one first instruction information indicates at least one resource available for uplink transmission, the apparatus according to Supplementary Note 1, further comprising the first receiving unit. (Supplementary Note 3) The apparatus according to Supplementary Note 2, wherein the at least one resource corresponds to at least one bandwidth unit among two or more bandwidth units of the carrier in the frequency domain. (Supplementary Note 4) At least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is two or more resources, and the time domain start positions of the at least one resource are the same, or The apparatus according to Supplementary Note 3, wherein at least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is one resource, and the time domain start positions of each partial resource corresponding to different bandwidth units of the one resource are the same. (Supplementary Note 5) The apparatus according to Supplementary Note 2, wherein one of the at least one resources is a time-frequency resource used for complete uplink transmission. (Supplementary Note 6) The apparatus according to Supplementary Note 2, wherein the at least one resource is used to transmit the same signal and / or channel, and the at least one first instruction information for indicating the at least one resource is one first instruction information. (Supplementary Note 7) The first transmission unit transmits the uplink transmission based on the number of bandwidth units detected to be idle among the two or more bandwidth units, the positions of the bandwidth units detected to be idle among the two or more bandwidth units, whether the bandwidth units detected to be idle among the two or more bandwidth units satisfy a predetermined condition, and at least one of the signals and / or channels included in the uplink transmission, the apparatus according to Supplementary Note 1. (Supplementary Note 8) The first transmission unit transmitting the uplink transmission based on the at least one means the first transmission unit determines whether to transmit an uplink transmission based on the at least one, and when the result of the determination is YES, the first transmission unit transmits an uplink transmission, the apparatus according to Supplementary Note 7. (Supplementary Note 9) a second receiving unit that receives second instruction information transmitted by a network, the second instruction information being related to a method for determining whether the first transmission unit transmits an uplink transmission based on the at least one, the apparatus according to Supplementary Note 8 further including the second receiving unit. (Supplementary Note 10) Whether the bandwidth unit detected to be idle satisfies a predetermined condition is whether a first bandwidth unit is included in the bandwidth unit detected to be idle, the apparatus according to any one of Supplementary Notes 7 to 9. (Supplementary Note 11) The first bandwidth unit is a bandwidth unit corresponding to channel detection based on random back-off among the two or more bandwidth units, the apparatus according to Supplementary Note 10. (Supplementary Note 12) Only one of the two or more bandwidth units corresponds to channel detection based on random back-off, the apparatus according to Supplementary Note 10. (Supplementary Note 13) The first bandwidth unit is selected before the terminal device performs the channel detection, and / or the first bandwidth unit is the device described in Appendix 10, which is instructed by the network device. (Appendix 14) The first transmitter transmitting the uplink transmission based on the at least one includes: The first transmitter selects the at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one, and transmits the uplink transmission using the selected at least one bandwidth unit, which is the device described in Appendix 7. (Appendix 15) The first transmitter autonomously selects the at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one, and / or the first transmitter selects the at least one bandwidth unit from the bandwidth units detected to be idle based on the at least one and / or an instruction from the network device, which is the device described in Appendix 14. (Appendix 16) A third receiver that receives third instruction information transmitted by the network device, where the third instruction information is related to a method for the first transmitter to select the at least one bandwidth unit from the bandwidth units detected to be idle, and further includes the third receiver, which is the device described in Appendix 15. (Appendix 17) The first transmitter randomly selects the at least one bandwidth unit from the bandwidth units detected to be idle based on the third instruction information, or The first transmitter selects the at least one bandwidth unit including a second bandwidth unit from the bandwidth units detected to be idle based on the third instruction information, or The first transmission unit performs grouping and / or ordering on the bandwidth unit or the two or more bandwidth units for channel detection detected as being idle based on the third instruction information, and selects at least one bandwidth unit according to the result of the grouping and / or ordering, the apparatus according to appended note 16. (Appended note 18) The second bandwidth unit is selected by the terminal device and / or instructed by the network device, the apparatus according to appended note 17. (Appended note 19) The first transmission unit transmitting the uplink transmission based on at least one of them The first transmission unit switching the transmission bandwidth or not switching the transmission bandwidth before transmitting the uplink transmission based on at least one of them, the apparatus according to appended note 7 or 14. (Appended note 20) The first transmission unit determines whether to switch the transmission bandwidth before transmitting the uplink transmission based on at least one of them, and / or an instruction of the network device, and / or the capability of the terminal device. If the result of the determination is YES, the first transmission unit switches the transmission bandwidth before transmitting the uplink transmission, the apparatus according to appended note 19. (Appended note 21) A fourth receiving unit that receives fourth instruction information transmitted by the network device, where the fourth instruction information is related to whether the terminal device switches the transmission bandwidth before transmitting the uplink transmission, a fourth receiving unit, further included, the apparatus according to appended note 20. (Appended note 22) The at least one bandwidth unit includes one bandwidth unit, or the at least one bandwidth unit includes two or more bandwidth units and is continuous or discontinuous in the frequency domain, the apparatus according to any one of appended notes 1 to 21. (Appended note 23) A second transmission unit that transmits fifth instruction information to the network device, where the fifth instruction information directly or indirectly instructs the capabilities of the terminal device, and the capabilities directly or indirectly indicate whether the terminal device supports switching the transmission bandwidth within a predetermined time range after channel detection and / or whether the terminal device supports uplink transmission simultaneously using discontinuous bandwidth units among two or more bandwidth units of the carrier. The device according to any one of Supplementary Notes 1 to 22, further comprising the second transmission unit. (Supplementary Note 1B) An uplink scheduling device configured in a network device, A transmission unit that transmits at least one first instruction information to a terminal device, where the at least one first instruction information instructs at least one resource available for uplink transmission, and the at least one resource corresponds to at least one bandwidth unit among two or more bandwidth units of a carrier in the frequency domain. The terminal device performs channel detection on the two or more bandwidth units and transmits uplink transmission on at least one bandwidth unit based on the result of the channel detection. The device includes the transmission unit when at least one bandwidth unit is detected to be idle. (Supplementary Note 2B) At least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is two or more resources, and the start positions of the time domains of the at least one resource are the same, or At least one bandwidth unit corresponding to the at least one resource in the frequency domain is two or more bandwidth units, the at least one resource is one resource, and the start positions of the time domains of each partial resource corresponding to different bandwidth units of the one resource are the same. The device according to Supplementary Note 1B. (Supplementary Note 3B) One of the at least one resource is a time-frequency resource used for complete uplink transmission. The device according to Supplementary Note 1B. (Appendix 4B) The at least one resource is used to transmit the same signal and / or channel, and the at least one first indication information for indicating the at least one resource is one piece of first indication information, the apparatus according to Appendix 1B. (Appendix 5B) The transmitting unit transmits second indication information to the terminal device, and the second indication information is related to a method for determining whether the terminal device transmits uplink transmission, the apparatus according to any one of Appendices 1B to 4B. (Appendix 6B) The transmitting unit transmits third indication information to the terminal device, and the third indication information is related to a method for the terminal device to select the at least one bandwidth unit from the detected bandwidth units that are idle, the apparatus according to any one of Appendices 1B to 5B. (Appendix 7B) The transmitting unit transmits fourth indication information to the terminal device, and the fourth indication information is related to whether the terminal device switches the transmission bandwidth before transmitting uplink transmission, the apparatus according to any one of Appendices 1B to 6B. (Appendix 8B) A receiving unit that receives fifth indication information transmitted by the terminal device, where the fifth indication information directly or indirectly indicates the capability of the terminal device, and the capability directly or indirectly represents whether the terminal device supports switching the transmission bandwidth within a predetermined time range after channel detection, and / or whether the terminal device supports simultaneously transmitting uplink transmission with discontinuous bandwidth units among two or more bandwidth units of the carrier, the apparatus further including the receiving unit, according to any one of Appendices 1B to 7B. (Appendix 9B) It further includes an interaction unit that performs information interaction with other network devices so as to coordinate resources. The information relates to a channel detection and / or data transmission / reception method adopted by a network device and / or a terminal device served by the network device, and is an apparatus described in any one of Appendices 1B to 8B. (Appendix 10B) The information is used to indicate a main bandwidth unit for channel detection and / or data transmission of a network device and / or a terminal device served by the network device, and / or is used to indicate whether to support switching the transmission bandwidth within a predetermined time range after channel detection by the network device and / or a terminal device served by the network device, and is an apparatus described in Appendix 9B. (Appendix 1C) An uplink scheduling device configured in a network device, A transmission unit that transmits second instruction information to a terminal device, where the second instruction information is related to a method for the terminal device to determine whether to transmit an uplink transmission, and the terminal device determines whether to transmit an uplink transmission based on the second instruction information, and includes a transmission unit. (Appendix 1D) An uplink scheduling device configured in a network device, A transmission unit that transmits third instruction information to a terminal device, where the third instruction information is related to a method for the terminal device to select at least one bandwidth unit from detected bandwidth units that are idle, and the terminal device selects at least one bandwidth unit from the detected bandwidth units that are idle based on the third instruction information and transmits an uplink transmission using the selected at least one bandwidth unit, and includes a transmission unit. (Appendix 1E) An uplink scheduling device configured in a network device, A transmitting unit that transmits fourth instruction information to the terminal device, where the fourth instruction information is related to whether the terminal device switches the transmission bandwidth before transmitting uplink transmission, and the terminal device switches or does not switch the transmission bandwidth before transmitting uplink transmission based on the fourth instruction information. The device includes the transmitting unit. (Appendix 1F) An uplink scheduling device configured in a network device, including an interaction unit that interacts with other network devices to cooperate resources, where the information is related to a channel detection and / or data transmission / reception method adopted by the network device and / or the terminal device served by the network device. (Appendix 2F) The device according to Appendix 1F, where the information is used to indicate the main bandwidth unit for channel detection and / or data transmission of the network device and / or the terminal device served by the network device, and / or is used to indicate whether to support the network device and / or the terminal device served by the network device to switch the transmission bandwidth within a predetermined time range after channel detection.

Claims

A receiving unit that receives second instruction information for instructing to transmit uplink transmission when it is detected that two or more uplink bandwidths within one carrier are idle, A detecting unit that performs channel detection on the two or more uplink bandwidths within the one carrier according to the second instruction information, A transmitting unit that transmits uplink transmission with at least one bandwidth among the two or more uplink bandwidths within the one carrier when it is detected that all of the two or more uplink bandwidths within the one carrier are idle, A terminal device.

2. The receiving unit receives the second instruction information via radio resource control signaling. The terminal device according to claim 1.

3. When it is detected that the two or more uplink bandwidths within the carrier are idle, it further has a control unit that selects the at least one bandwidth from the two or more uplink bandwidths. The terminal device according to claim 1.

4. The receiving unit receives third instruction information regarding a method for selecting the at least one bandwidth. The control unit selects the at least one bandwidth according to the third instruction information. The terminal device according to claim 3.

5. The two or more uplink bandwidths are included in an uplink bandwidth part (UL BWP). The terminal device according to claim 1.

6. A transmitting unit that transmits second instruction information for instructing a terminal device to transmit uplink transmission when it is detected that two or more uplink bandwidths within one carrier are idle, wherein the terminal device performs channel detection on the two or more uplink bandwidths within the one carrier according to the second instruction information. A receiving unit that receives an uplink transmission, wherein when the terminal device detects that all of the two or more uplink bandwidths within the one carrier are idle, the uplink transmission is transmitted by the terminal device with at least one of the two or more uplink bandwidths within the one carrier, and a receiving unit. Network device.

7. The transmitting unit transmits the second instruction information via radio resource control signaling. The network device according to claim 6.

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