Transmission, reception methods and devices, communication equipment and media for uplink transmission

Abstract

Embodiments of the present disclosure provide a method and apparatus for sending and receiving uplink transmissions, a communication device, and a storage medium. The method for sending an uplink transmission includes: in response to the existence of a time interval within the Contention of Time (COT) of an unlicensed spectrum, sending a predetermined uplink transmission within the time interval.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies. In particular, it relates to a transmission method and device for uplink transmission based on unlicensed spectrum, a reception method and device for uplink transmission based on unlicensed spectrum, a communication device, and a medium. Background Art

[0002] On unlicensed spectrum, before a transmitting end occupies a channel to send data, it generally needs to monitor the channel, that is, clear channel assessment (CCA). If the transmitting end determines that the channel is idle after performing CCA, it can occupy the channel to send data; otherwise, it cannot occupy the channel. The above process is generally referred to as the process of channel access on unlicensed bands. If an idle channel is detected, the idle channel will be occupied, and the duration of one occupation of the idle channel is a Channel Occupancy Time (COT). Summary of the Invention

[0003] Embodiments of the present disclosure provide a transmission method and device for uplink transmission based on unlicensed spectrum, a reception method and device for uplink transmission based on unlicensed spectrum, a communication device, and a storage medium.

[0004] In a first aspect of an embodiment of the present disclosure, a transmission method for uplink transmission is provided, which includes:

[0005] In response to the existence of a time interval within the occupancy time COT of the unlicensed spectrum, a predetermined uplink transmission is sent within the time interval.

[0006] In a second aspect of an embodiment of the present disclosure, a reception method for uplink transmission is provided, which includes:

[0007] In response to the existence of a time interval within the occupancy time COT of the unlicensed spectrum, a predetermined uplink transmission is received within the time interval.

[0008] In a third aspect of an embodiment of the present disclosure, a transmission device for uplink transmission is provided, which includes:

[0009] A transmission module configured to, in response to the existence of a time interval within the occupancy time COT of the unlicensed spectrum, send a predetermined uplink transmission within the time interval.

[0010] In a fourth aspect of an embodiment of the present disclosure, a reception device for uplink transmission is provided, which includes:

[0011] A reception module configured to, in response to the existence of a time interval within the occupancy time COT of the unlicensed spectrum, receive a predetermined uplink transmission within the time interval.

[0012] In a fifth aspect of the embodiments of the present disclosure, a communication device is provided, including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of running on the processor. Wherein, when the processor runs the executable program, it executes the method shown in any technical solution of the first aspect or the second aspect.

[0013] In a sixth aspect of the embodiments of the present disclosure, a computer storage medium is provided. The computer storage medium stores an executable program; after the executable program is executed by a processor, it can implement the method shown in any technical solution of the first aspect or the second aspect.

[0014] In the technical solution provided by the embodiments of the present disclosure, when there is a time interval in an occupied COT of the UE on the unlicensed spectrum, it will automatically send a predetermined uplink transmission to suppress other devices from occupying the transmission channel where the COT is located during the time interval when it stops data transmission, thereby reducing the large uplink transmission delay caused by the channel being occupied by other devices midway and improving the data transmission rate.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the embodiments of the present invention.

[0017] Figure 1 It is a schematic structural diagram of a wireless communication system shown according to an exemplary embodiment;

[0018] Figure 2 It is a schematic diagram of the effect of a time interval shown according to an exemplary embodiment;

[0019] Figure 3 It is a schematic flowchart of a method for sending a time interval shown according to an exemplary embodiment;

[0020] Figure 4 It is a schematic diagram of the effect of a time interval shown according to an exemplary embodiment;

[0021] Figure 5 It is a schematic flowchart of a method for sending a time interval shown according to an exemplary embodiment;

[0022] Figure 6 It is a schematic diagram of the effect of a time interval shown according to an exemplary embodiment;

[0023] Figure 7It is a schematic structural diagram of a transmission device for uplink transmission shown according to an exemplary embodiment;

[0024] Figure 8 It is a schematic structural diagram of a receiving device for uplink transmission shown according to an exemplary embodiment;

[0025] Figure 9 It is a schematic structural diagram of a UE shown according to an exemplary embodiment;

[0026] Figure 10 It is a schematic structural diagram of a base station shown according to an exemplary embodiment. Detailed implementation manners

[0027] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with the embodiments of the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present invention detailed in the appended claims.

[0028] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present disclosure. The singular forms "a", "and", and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0029] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0030] Please refer to Figure 1 , which shows a schematic structural diagram of a wireless communication system provided by the embodiments of the present disclosure. As Figure 1 shown, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several UEs 11 and several base stations 12.

[0031] Among them, the UE11 can be a device that provides voice and / or data connectivity for a user. The UE11 can communicate with one or more core networks via a Radio Access Network (RAN). The UE11 can be an Internet of Things (IoT) UE, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an IoT UE. For example, it can be a fixed, portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted device. For example, a Station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote UE, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Or, the UE11 can also be a device of an unmanned aerial vehicle. Or, the UE11 can also be a vehicle-mounted device. For example, it can be an on-board computer with wireless communication functions, or a wireless communication device external to the on-board computer. Or, the UE11 can also be a roadside device. For example, it can be a street lamp, a signal lamp, or other roadside devices with wireless communication functions, etc.

[0032] The base station 12 can be a network-side device in a wireless communication system. Among them, the wireless communication system can be a fourth-generation mobile communication technology (4G) system, also known as the Long Term Evolution (LTE) system; or, the wireless communication system can also be a 5G system, also known as the new radio (NR) system or the 5G NR system. Or, the wireless communication system can also be the next generation system of the 5G system. Among them, the access network in the 5G system can be called the NG-RAN (New Generation-Radio Access Network, new generation wireless access network). Or, an MTC system.

[0033] Among them, the base station 12 may be an evolved Node B (eNB) adopted in a 4G system. Alternatively, the base station 12 may also be a base station (gNB) with a centralized distributed architecture adopted in a 5G system. When the base station 12 adopts a centralized distributed architecture, it generally includes a central unit (CU) and at least two distributed units (DUs). The protocol stacks of the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, and Media Access Control (MAC) layer are set in the central unit; the protocol stack of the Physical (PHY) layer is set in the distributed unit. The specific implementation manner of the base station 12 is not limited in the embodiments of the present disclosure.

[0034] A wireless connection can be established between the base station 12 and the UE 11 through a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as the new air interface; or, the wireless air interface may also be a wireless air interface based on the standard of the next-generation mobile communication network technology of 5G.

[0035] In some embodiments, an E2E (End to End) connection can also be established between UEs 11. For example, in scenarios such as vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication in vehicle-to-everything (V2X) communication.

[0036] In some embodiments, the above wireless communication system may further include a network management device 13.

[0037] A plurality of base stations 12 are respectively connected to a network management device 13. Among them, the network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Or, the network management device may also be other core network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS), etc. The embodiments of the present disclosure do not limit the implementation form of the network management device 13. A frame-based equipment (FBE) is a device that executes a specific channel access method. In this method, the sending end will perform channel listening at a fixed frame period (FFP), and only needs to perform Clear Channel Assessment (CCA) in one observation slot. After determining that the channel is idle, data transmission can start. Each FFP will include an idle duration of a fixed length at the end. Excluding the idle duration and the observation slot for CCA, the other part is the maximum allowable channel occupancy time (COT) of the sending end in a continuous transmission. The R17 URLLC / IIoT project needs to study related issues of the terminal as an initiating FBE occupying the channel (UE initiated COT for FBE). Even when the UE is an initiating FBE occupying the channel, the uplink channel of the UE still needs to be pre-configured or dynamically scheduled by the base station to ensure that the base station can predict the resource location, modulation method, etc. used for uplink transmission to accurately receive uplink information. Within the COT, the terminal can perform uplink transmission on a configured grant-Physical Uplink Shared channel (CG-PUSCH), a dynamic scheduled-Physical Uplink Shared channel (DS-PUSCH), and a common PUCCH, etc.

[0038] If the terminal is in the FBE mode, after the UE CCA is successful, information transmission should start at the beginning of the FFP; otherwise, it will be considered that the channel has not been successfully occupied. During the process of occupying the channel, if the UE aborts the uplink transmission for more than a certain period after sending a segment of uplink information, and if the UE still has uplink data to send and has not exceeded the COT, it can perform a CCA again. If the channel is detected to be idle, it can continue to occupy the channel until the end of the COT. However, it is very likely that the terminal detects that the channel is busy, in which case the terminal cannot continue to occupy the channel for transmission. This may increase the transmission delay of some uplink channels.

[0039] As Figure 2 shown, CCA is performed within the observation time slot. If the CCA is successful, that is, an idle channel on the unlicensed spectrum is detected, the idle channel is occupied. The time for occupying the idle channel is one COT. Before performing the next CCA, there is an idle period (i.e., Idle duration). And one FFP includes one COT and one idle period.

[0040] As Figure 3 shown, an embodiment of the present disclosure provides a method for transmitting uplink transmission, which includes:

[0041] S110: In response to the existence of a time interval within the occupancy time COT of the unlicensed spectrum, send a predetermined uplink transmission within the time interval.

[0042] This method can be applied within the UE.

[0043] The UE can be various types of UEs. The types of the UE include but are not limited to: human-carried terminals such as mobile phones or wearable devices, and can also be vehicle-mounted terminals or Internet of Things terminals. Typical Internet of Things terminals may include: various types of sensors or electrical appliances. The sensors include industrial touch sensors, home environment sensors, or road monitoring sensors. The electrical appliances include: smart home devices and / or smart office devices.

[0044] Within the COT of the UE occupying the unlicensed spectrum, if it is determined that there is a time interval within the COT according to the pre-configured configuration information of the uplink channel and / or the scheduling information of the dynamically scheduled uplink channel, the UE will send a predetermined uplink transmission within the time interval, thereby reducing the preemption of the occupied COT by other devices. This time interval can be considered as the time when there is no transmission channel configured within the COT, for example, the time when there is no uplink channel configured.

[0045] The predetermined uplink transmission includes but is not limited to: uplink data and / or uplink signaling, etc.

[0046] By scheduling the transmission of the scheduled uplink transmission over the time interval within the COT occupied by the UE, the probability that other devices preempt the channel occupied by the UE is reduced, thereby reducing the phenomenon of large uplink transmission delay caused by such preemption and improving the transmission rate of the uplink transmission on the uplink channel.

[0047] In one embodiment, scheduling the transmission of the scheduled uplink transmission within the time interval may include:

[0048] Transmitting the scheduled uplink transmission throughout the time interval;

[0049] Alternatively, transmit the scheduled uplink interval within a partial time of the time interval, and the transmission of the scheduled uplink transmission during this partial time can suppress other devices from preempting the channel.

[0050] For example, for the convenience of the base station side to distinguish, a blank period is reserved at the end of the time interval. The blank period can be: a period without any uplink transmission. In this way, through the stay of the uplink transmission in the blank period, when the base station side receives, it can facilitate the decoding of the base station side according to the received silent time period (i.e., the blank period). The duration of the blank period is less than a preset duration, and the preset duration can be a minimum duration for the channel to be preempted by other devices, such as 16 us, etc.

[0051] In one embodiment, S110 may include: in response to the interval duration of the time interval within the COT of the unlicensed spectrum satisfying a first condition, transmitting the scheduled uplink transmission within the time interval.

[0052] Only when the interval duration of the time interval satisfies certain conditions, the scheduled uplink transmission is transmitted, otherwise the scheduled uplink transmission may not be transmitted. On the one hand, it reduces unnecessary transmissions when the interval duration is very short, and on the other hand, it reduces the waste of resources caused by continuing to occupy the channel when the interval duration is very long.

[0053] For example, in one embodiment, the interval duration satisfying the first condition may include:

[0054] A time interval whose interval duration exceeds the preset duration. For example, the preset duration can be 16 us, and of course it is not limited to 16 us. Since this time interval is relatively small, the possibility that the channel is preempted by other devices is relatively small or the channel will not be preempted by other devices, so the scheduled uplink transmission may not be transmitted over this time interval.

[0055] In this way, the scheduled uplink transmission is not transmitted over a very small time interval, thereby reducing unnecessary uplink transmissions and reducing the transmission complexity of the UE.

[0056] In another embodiment, the interval duration satisfying the first condition includes:

[0057] The interval duration of the time interval is less than a threshold value;

[0058] wherein, the threshold value is a fixed value; or,

[0059] the threshold value is associated with at least one of the duration of the fixed cycle FFP of the unlicensed spectrum and the duration of the COT.

[0060] The threshold value may be the upper limit value for the interval duration to meet the first condition, and the aforementioned preset duration may be the lower limit value for the interval duration to meet the first condition.

[0061] The threshold value can be a fixed value set in advance, or a static value set in advance. The preset value can be any value between 1 - 5 ms. For example, the specific value is 2 ms or 3 ms, etc.

[0062] In addition, the threshold value can also be a dynamic value.

[0063] The threshold value depends on the duration of the current FFP and / or COT.

[0064] In one embodiment, the threshold value is positively correlated with the duration of the FFP and / or COT, that is, the longer the FFP and / or COT, the larger the threshold value can be.

[0065] For example, the threshold value can be a preset percentage of the FFP where the current COT is located. The preset percentage can be: 50%, 60%, 30% or 70%, etc.

[0066] Exemplarily, the threshold value can be the COT minus a specific value. The specific value can be a preset millisecond, such as 1 ms, 2 ms or 4 ms, etc. The value range of the specific value can be less than or equal to 50% of the duration of the COT.

[0067] In short, by satisfying the first condition of the interval duration, the unnecessary transmissions and waste of resource occupation of sending the predetermined uplink transmission at any interval duration are reduced.

[0068] In one embodiment, the S110 may include:

[0069] In response to the presence of the time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying the second condition, send a predetermined uplink transmission within the time interval.

[0070] Sending a scheduled uplink transmission over a corresponding time interval may only require that the interval duration of the time interval itself meets the first condition, or that the uplink channel configured within the COT also needs to meet certain conditions, such as the second condition. Of course, in another embodiment, it may also be that regardless of whether the interval duration of the time interval meets the first condition, only the uplink channel within the COT needs to meet the second condition.

[0071] In one embodiment, the uplink channel meeting the second condition includes but is not limited to:

[0072] There is at least one uplink channel configured within the COT after the time interval, so that it is necessary to continue waiting for the uplink transmission after the time interval. Otherwise, the channel occupied by the UE can be released.

[0073] In another embodiment, the uplink channel meeting the second condition includes:

[0074] The termination time-domain position of the uplink channel is within the COT;

[0075] And / or,

[0076] The priority of the uplink channel after the time interval reaches a preset priority.

[0077] For example, the termination time-domain position (i.e., the termination position in the time domain) of one or more uplink channels after the time interval needs to be within the COT. For example, it can be before the end time of the COT or end simultaneously with the COT. If it is outside the COT, if the COT continues to be occupied, all uplink transmissions on the uplink channel cannot be sent within the COT. Therefore, no scheduled uplink transmission is sent over the time interval, and the COT is released as soon as possible, which can reduce the interference caused by invalid uplink transmissions to other surrounding nodes.

[0078] In some other cases, it is also necessary to consider the priority of one or more uplink channels for uplink transmissions to be sent within the COT. Generally, the higher the priority, the more urgent the uplink transmission on the uplink channel is and the more sensitive it is to latency. Therefore, it is necessary to complete the uplink transmission on the corresponding uplink channel within the current COT as much as possible.

[0079] In one embodiment, the priority of the uplink channel can be divided into multiple priorities, and the preset priority can include one or more of the higher priorities.

[0080] For example, the priority of the uplink channel can be divided into a first priority and a second priority, with the first priority higher than the second priority, and the priority meeting the second condition can be the first priority.

[0081] The priority of the uplink channel for enhanced Mobile Broadband (eMBB) services can be lower than that of the uplink channel for Ultra-reliable and Low Latency Communication (URLLC) services. At this time, if the uplink channel within the COT occupied by the current UE after the time interval contains an uplink channel for URLLC service transmission, it can be considered that the uplink channel within the current COT meets the second condition. However, if the uplink channel within the COT occupied by the previous UE after the time interval only contains an uplink channel for eMBB service transmission, it can be considered that the second condition is not met. Of course, this is just an example here, and the specific implementation is not limited to this.

[0082] In one embodiment, that is, when the priority of the uplink channel after the time interval within the COT does not reach the preset priority, it can be considered that the urgency of the data to be transmitted on this uplink channel is not high, and there is no need to continuously occupy this COT by filling the predetermined uplink transmission within the time interval, thereby reducing unnecessary predetermined uplink transmissions.

[0083] In one embodiment, the time interval includes at least one of the following:

[0084] The time interval between the starting time domain position of the FFP where the COT is located and the starting time domain position of the first uplink channel within the COT;

[0085] The time interval between the time domain resources of any two adjacent uplink channels within the COT.

[0086] If the time domain resources of multiple uplink channels are configured within a COT, the time interval within this COT may further include: the time interval between the time domain resources of different uplink channels.

[0087] Reference Figure 4 As shown, gap1 is the time interval between the starting time domain position of the FFP and the first uplink channel within the COT. gap2 is the time interval between the time domain resources of two uplink channels.

[0088] Both of these time intervals are time intervals during which predetermined uplink transmissions can be made. In one embodiment, sending a predetermined uplink transmission within the time interval includes at least one of the following:

[0089] Sending a pilot signal within the time interval;

[0090] In response to the uplink channel being configured within the COT before the time interval, repeating the uplink transmission on the uplink channel before the time interval within the time interval;

[0091] Transmit an uplink transmission on an uplink channel after the time interval within the time interval.

[0092] If the predetermined uplink transmission is a pilot signal, the transmission of the pilot signal completes the function corresponding to the pilot signal. For example, if the pilot signal is a Channel-State Information Reference Signal (CSI-RS), the transmission of the pilot signal can be used for channel measurement and / or estimation.

[0093] If the pilot signal is a synchronization signal, the transmission of the pilot signal can be used for synchronization and / or synchronization calibration between the base station and the UE, etc.

[0094] If the pilot signal is a demodulation reference signal, the transmission of the pilot signal can be used to improve the demodulation performance of the uplink transmission.

[0095] In one embodiment, any information can be transmitted within the time interval. When the base station receives information transmitted randomly without a specific purpose, it can be directly discarded. However, through the information transmitted randomly without a specific purpose, the UE's continuous occupancy of the COT can be maintained. The information without a specific purpose can also be a pre-set filling sequence. The filling sequence can be composed of all "0" bits, or all "1" bits, or a mixed sequence of "1" and "0".

[0096] In the embodiments of the present disclosure, the transmitted pilot signal or the uplink transmission on the uplink channel within the COT has a specific purpose, so the resource utilization efficiency of the time interval is further utilized.

[0097] For example, if one or more uplink channels are configured within the COT before the time interval, the uplink transmissions of these uplink channels can be repeatedly transmitted within the time interval, which will increase the time gain of the base station and thus improve the decoding success rate.

[0098] For another example, if one or more uplink channels exist within the COT after the time interval, the uplink transmissions of the uplink channels configured after the time interval can be transmitted within the time interval, which will also increase the time gain of the base station and thus improve the decoding success rate.

[0099] Specifically, for example, the uplink transmission of the first uplink channel or the last uplink channel within the COT is transmitted within the time interval.

[0100] The predetermined uplink transmission transmitted within the time interval can be an uplink transmission on an uplink control channel or an uplink transmission on an uplink data channel.

[0101] Such as Figure 5As shown in the figure, an embodiment of the present disclosure provides a method for receiving uplink transmission, which includes:

[0102] S210: In response to the existence of a time interval within the Occupancy Time (COT) of the unlicensed spectrum, receive a predetermined uplink transmission within the time interval.

[0103] The method for receiving the uplink transmission can be applied to a base station.

[0104] Since the uplink channel can be configured by the base station, the base station will know whether there is a time interval within a COT occupied by the User Equipment (UE).

[0105] Therefore, the base station can determine the time interval according to its own configuration information and / or scheduling instructions for the UE's uplink channel, and receive the predetermined uplink transmission sent by the UE within the determined time interval.

[0106] In one embodiment, S210 may include:

[0107] In response to the interval duration of the time interval within the COT of the unlicensed spectrum satisfying a first condition, receive the predetermined uplink transmission within the time interval.

[0108] Only when the time interval satisfies the first condition, it is necessary to receive the predetermined uplink transmission within the time interval. Otherwise, it can be not received, reducing unnecessary reception and / or decoding.

[0109] In another embodiment, the interval duration satisfying the first condition includes at least one of the following:

[0110] The interval duration of the time interval is less than a threshold value; wherein, the threshold value is a fixed value; or,

[0111] The threshold value is associated with at least one of the duration of the Fixed Frame Period (FFP) of the unlicensed spectrum and the duration of the COT.

[0112] The determination method of the threshold value here can refer to the foregoing embodiment and will not be repeated here.

[0113] In another embodiment, S210 may include:

[0114] In response to the existence of the time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying a second condition, send a predetermined uplink transmission within the time interval.

[0115] When the uplink channel configured within the COT also needs to satisfy the second condition, the predetermined uplink transmission will be received within the time interval within the COT. For example, the uplink channel satisfying the second condition includes:

[0116] The termination time domain position of the uplink channel is within the COT;

[0117] and / or

[0118] The priority of the uplink channel after the time interval is a preset priority.

[0119] In another embodiment, the time interval includes at least one of the following:

[0120] The time interval between the start time domain position of the FFP where the COT is located and the start time domain position of the first uplink channel within the COT;

[0121] The time interval between the time domain resources of any two adjacent uplink channels within the COT.

[0122] In a COT, there may be one or more time intervals. If some time intervals meet the first condition, it may be necessary to receive a scheduled uplink transmission, while if some time intervals do not meet the first condition, it may not be necessary to receive a scheduled uplink transmission.

[0123] In other embodiments, the sending of a scheduled uplink transmission within the time interval includes at least one of the following:

[0124] Receiving a pilot signal within the time interval;

[0125] In response to the uplink channel being configured within the COT before the time interval, receiving an uplink transmission on the uplink channel before the time interval within the time interval;

[0126] Within the time interval, receiving an uplink transmission on the uplink channel after the time interval.

[0127] By receiving the pilot signal, channel condition measurement and / or estimation of the uplink channel can be performed, or synchronization or synchronization calibration can be performed, etc.

[0128] If the scheduled uplink transmission is the uplink transmission of one or more uplink channels within the COT, if the base station receives it, the time domain gain can be increased, thereby improving the decoding success rate and reception success rate of the base station.

[0129] As Figure 7 shown, an embodiment of the present disclosure provides a sending device for uplink transmission, which includes:

[0130] A sending module 110, configured to send a scheduled uplink transmission within the time interval in response to the existence of a time interval within the occupied time COT of the unlicensed spectrum.

[0131] In one embodiment, the sending module 110 may be a program module; after being executed by a processor, the program module sends the predetermined uplink transmission.

[0132] In another embodiment, the sending module 110 may be a software-hardware combination module; the software-hardware combination module includes, but is not limited to, various programmable arrays. The programmable arrays include, but are not limited to: field programmable arrays or complex programmable arrays.

[0133] In still another embodiment, the sending module 110 may further include: a pure hardware module; the pure hardware module includes, but is not limited to: application specific integrated circuits.

[0134] In one embodiment, the first sending module 110 is configured to send the predetermined uplink transmission within the time interval in response to the interval duration of the time interval within the COT of the unlicensed spectrum satisfying a first condition.

[0135] In one embodiment, the interval duration satisfying the first condition includes:

[0136] The interval duration of the time interval is less than a threshold value;

[0137] wherein, the threshold value is a fixed value; or,

[0138] The threshold value is associated with at least one of the duration of the fixed period FFP of the unlicensed spectrum and the duration of the COT.

[0139] In one embodiment, the first sending module 110 is configured to send a predetermined uplink transmission within the time interval in response to the presence of the time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying a second condition.

[0140] In one embodiment, the uplink channel satisfying the second condition includes:

[0141] The termination time domain position of the uplink channel is within the COT;

[0142] and / or,

[0143] The priority of the uplink channel after the time interval reaches a preset priority.

[0144] In one embodiment, the time interval includes at least one of the following:

[0145] The time interval between the start time domain position of the FFP where the COT is located and the start time domain position of the first uplink channel within the COT;

[0146] The time interval between the time domains of any two adjacent uplink channels within the COT.

[0147] In one embodiment, the first transmission module 110 is specifically configured to perform at least one of the following:

[0148] Transmit a pilot signal within the time interval;

[0149] In response to the uplink channel being configured within the COT before the time interval, repeat the uplink transmission on the uplink channel before the time interval within the time interval;

[0150] Transmit the uplink transmission on the uplink channel after the time interval within the time interval.

[0151] As Figure 8 shown, an embodiment of the present disclosure provides a receiving device for uplink transmission, which includes:

[0152] A receiving module 210, configured to receive a predetermined uplink transmission within the time interval in response to the existence of a time interval within the occupancy time (COT) of the unlicensed spectrum.

[0153] In one embodiment, the receiving module 210 may be a program module; after being executed by a processor, the program module will receive the predetermined uplink transmission.

[0154] In another embodiment, the receiving module 210 may be a software-hardware combined module; the software-hardware combined module includes, but is not limited to, various programmable arrays. The programmable arrays include, but are not limited to: field programmable arrays or complex programmable arrays.

[0155] In still another embodiment, the transmission module may further include: a pure hardware module; the pure hardware module includes, but is not limited to: application specific integrated circuits.

[0156] In one embodiment, the receiving module 210 is configured to receive the predetermined uplink transmission within the time interval in response to the interval duration of the time interval within the COT of the unlicensed spectrum satisfying a first condition.

[0157] In one embodiment, the interval duration satisfying the first condition includes at least one of the following:

[0158] The interval duration of the time interval is less than a threshold value; wherein, the threshold value is a fixed value; or,

[0159] The threshold value is associated with at least one of the duration of the fixed period (FFP) of the unlicensed spectrum and the duration of the COT.

[0160] In one embodiment, the receiving module 210 is configured to send a predetermined uplink transmission within the time interval in response to the presence of the time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying a second condition.

[0161] In one embodiment, the uplink channel satisfying the second condition includes:

[0162] The termination time domain position of the uplink channel is within the COT;

[0163] And / or,

[0164] The priority of the uplink channel is a preset priority.

[0165] In one embodiment, the time interval includes at least one of the following:

[0166] The time interval between the start time domain position of the FFP where the COT is located and the start time domain position of the first uplink channel within the COT;

[0167] The time interval between the time domain resources of any two adjacent uplink channels within the COT.

[0168] In one embodiment, the receiving module 210 is at least configured to perform at least one of the following:

[0169] Receive a pilot signal within the time interval;

[0170] In response to the uplink channel being configured within the COT before the time interval, receive an uplink transmission on the uplink channel before the time interval within the time interval;

[0171] Receive an uplink transmission on the uplink channel after the time interval within the time interval.

[0172] The present disclosure proposes an uplink information sending method when a terminal serves as an initiating FBE to occupy a channel on an unlicensed spectrum. This method can ensure continuous channel occupancy of the FBE terminal for uplink transmission and improve the uplink data demodulation performance.

[0173] Use some bits or information to fill into Figure 2 the time interval (gap) shown to ensure that the terminal can continuously occupy the channel for uplink transmission.

[0174] The technical solution provided in this example can be specifically as follows:

[0175] If certain conditions are met, the terminal will fill some uplink bits / information within the interval to ensure continuous uplink transmission. The conditions can be:

[0176] The duration of the time interval is less than a certain threshold value, which can be a fixed value or a value related to the FFP duration and the maximum allowable COT. The following are several specific examples of this threshold value:

[0177] Example 1, the threshold value can be fixedly set to 2 ms.

[0178] Example 2, the threshold value can be set to 60% of the FFP duration.

[0179] Example 3, the threshold value can be set to the maximum COT duration - 1 ms.

[0180] The end time domain position of the uplink channel to be transmitted after the time interval does not exceed the maximum allowable COT, that is, the uplink channel after this time interval also needs to meet certain conditions. The condition here is one of the aforementioned second conditions.

[0181] Figure 6 The uplink channel after gap1 is CG-PUSCH1, and CG-PUSCH1 occupies 4 symbols. The terminal judges that the end position of CG-PUSCH1 will still be within the COT, so this CG-PUSCH1 meets the condition.

[0182] Figure 6 The uplink channel after gap 2 is the PUCCH for HARQ feedback, and this PUCCH for HARQ feedback occupies 2 symbols. The terminal judges that the end position of the PUCCH for HARQ feedback will still be within the COT, so the PUCCH for HARQ feedback meets the condition.

[0183] Figure 6 The uplink channel after gap3 is CG-PUSCH 2, and CG-PUSCH 2 occupies 4 symbols. The terminal judges that the end position of CG-PUSCH 2 will exceed the COT, so CG-PUSCH 2 does not meet the condition.

[0184] In some embodiments, if at least one uplink channel within the COT after the time interval meets the second condition, then the predetermined uplink transmission is sent within the time interval.

[0185] In another embodiment, if all the uplink channels included within the COT after the time interval meet the second condition, then the predetermined uplink transmission is sent within the time interval.

[0186] The priority of the uplink channel to be transmitted after the time interval is high priority.

[0187] For example, if the priority of the uplink channel to be transmitted after the interval is high priority, the condition is satisfied. If it is not high priority, the condition is not satisfied. The uplink channel for the uplink transmission to be sent may include at least one of the following:

[0188] CG-PUSCH, and the priority of the CG-PUSCH may be configured by RRC layer signaling.

[0189] DS-PUSCH, and the priority of the DS-PUSCH may be indicated by the DCI scheduling the PUSCH.

[0190] The uplink channel where the resource scheduling request (SR) is located, and the SR priority is configured by RRC layer signaling.

[0191] PUCCH for performing Hybrid Automatic Repeat reQuest (HARQ) feedback;

[0192] The priority of the PUCCH is indicated by the DCI scheduling the PUCCH.

[0193] In this embodiment, the priorities of various uplink channels may only have two levels, but the specific implementation may have three levels or more.

[0194] The filled uplink transmission may be at least one of the following:

[0195] Pilot. For example, tracking reference signal (TRS) TRS / CSI-RS / demodulation reference signal (DMRS). The frequency domain position occupied by the pilot may be the same as the frequency domain position of the channel before or after the time interval. The pilot will occupy all the time domain symbols within the time interval. The filled pilot can be used for accurate channel measurement and estimation, time-frequency synchronization, etc., and can improve the demodulation performance of uplink data.

[0196] Repetition of the uplink channel before the time interval. For example, the uplink channel before the time interval is CG-PUSCH, which occupies 8 symbols, and the time interval is 4 symbols. Then, 4 specific symbols in the CG-PUSCH can be completely repeated within the time interval. Repeating the uplink transmission on the uplink channel is equivalent to reducing the code rate of data transmission, and thus better data demodulation performance can be obtained.

[0197] Repetition of the uplink channel after the time interval. For example, the uplink channel after the time interval is PUCCH for HARQ, which occupies 2 symbols, and the time interval is 4 symbols. Then, the 2 uplink transmissions on the PUCCH channel can be completely repeated within the time interval. Repeating the uplink channel is equivalent to reducing the code rate of data transmission, and thus better data demodulation performance can be obtained.

[0198] An embodiment of the present disclosure provides a communication device, including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor. When the processor runs the executable program, it executes the transmission method for uplink transmission applied to the UE provided by any of the foregoing technical solutions, or executes the reception method for uplink transmission applied to the base station provided by any of the foregoing technical solutions.

[0199] The communication device may be the foregoing base station or UE.

[0200] Wherein, the processor may include various types of storage media, and the storage media is a non-temporary computer storage media, which can continue to memorize the information stored thereon after the communication device loses power. Here, the communication device includes a base station or a user equipment.

[0201] The processor may be connected to the memory through a bus or the like, and is used to read the executable program stored on the memory. For example, at least one of the methods shown in Figure 3 and Figure 5 is used.

[0202] An embodiment of the present disclosure provides a computer storage medium, which stores an executable program; after the executable program is executed by a processor, it can implement the methods shown in any technical solutions of the first aspect or the second aspect. For example, at least one of the methods shown in Figure 3 and Figure 5 is used.

[0203] Figure 9 is a block diagram of a UE800 shown according to an exemplary embodiment. For example, the UE800 may be a mobile phone, a computer, a digital broadcast user equipment, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0204] Referring to Figure 9 , the UE800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0205] The processing component 802 generally controls the overall operation of the UE 800, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0206] The memory 804 is configured to store various types of data to support the operation of the UE 800. Examples of such data include instructions for any application or method operating on the UE 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disks, or optical disks.

[0207] The power component 806 provides power to various components of the UE 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the UE 800.

[0208] The multimedia component 808 includes a screen that provides an output interface between the UE 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may not only sense the boundaries of the touch or swipe actions, but also detect the duration and pressure associated with the touch or swipe operations. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the UE 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each of the front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capabilities.

[0209] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the UE 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting audio signals.

[0210] The I / O interface 812 provides an interface between the processing component 802 and a peripheral interface module, and the peripheral interface module can be a keyboard, a click wheel, buttons, etc. These buttons can include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0211] The sensor component 814 includes one or more sensors for providing an assessment of various aspects of the status of the UE 800. For example, the sensor component 814 can detect the on / off state of the UE 800, the relative positioning of components, such as the display and keypad of the UE 800. The sensor component 814 can also detect a change in the position of the UE 800 or a component of the UE 800, the presence or absence of user contact with the UE 800, the orientation or acceleration / deceleration of the UE 800, and a change in the temperature of the UE 800. The sensor component 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 814 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0212] The communication component 816 is configured to facilitate communication between the UE 800 and other devices in a wired or wireless manner. The UE 800 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0213] In an exemplary embodiment, the UE 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above method.

[0214] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the above instructions can be executed by a processor 820 of the UE 800 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0215] As Figure 10 shown, an embodiment of the present disclosure shows a structure of a base station. For example, the base station 900 may be provided as a network-side device. Referring to Figure 10 , the base station 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by a memory 932 for storing instructions executable by the processing component 922, such as application programs. The application programs stored in the memory 932 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute instructions to perform any method of the above-mentioned application in the base station, for example, as Figure 3 and Figure 5 shown in the method.

[0216] The base station 900 may further include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to the network, and an input / output (I / O) interface 958. The base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server TM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

[0217] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are to be considered as exemplary only, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0218] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A transmission method for uplink transmission, wherein, The method is executed by a UE, and the method includes: In response to there being a time interval within the Occupancy Time (COT) of the unlicensed spectrum, sending a predetermined uplink transmission within the time interval; The step of, in response to there being a time interval within the Occupancy Time (COT) of the unlicensed spectrum, sending a predetermined uplink transmission within the time interval, includes: In response to there being the time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying a second condition, sending a predetermined uplink transmission within the time interval; wherein, the uplink channel satisfying the second condition includes: the termination time domain position of the uplink channel is within the COT; and / or, the priority of the uplink channel reaches a preset priority; The step of sending a predetermined uplink transmission within the time interval includes at least one of the following: Sending a pilot signal; In response to the uplink channel being configured before the time interval within the COT, repeating the uplink transmission on the uplink channel before the time interval; Sending the uplink transmission on the uplink channel after the time interval.

2. The method according to claim 1, wherein The step of, in response to there being a time interval within the Occupancy Time (COT) of the unlicensed spectrum, sending a predetermined uplink transmission within the time interval, includes: In response to at least one uplink channel after the time interval within the COT of the unlicensed spectrum satisfying the second condition, and the interval duration of the time interval satisfying a first condition, sending the predetermined uplink transmission within the time interval.

3. The method according to claim 2, wherein, The interval duration satisfying the first condition includes: The interval duration of the time interval is less than a threshold value; wherein, the threshold value is a fixed value; or, the threshold value is associated with at least one of the duration of the fixed period (FFP) of the unlicensed spectrum and the duration of the COT.

4. The method according to any one of claims 1 to 3, wherein, The time interval includes at least one of the following: The time interval between the start time domain position of the FFP where the COT is located and the start time domain position of the first uplink channel within the COT; The time interval between the time domain resources of any two adjacent uplink channels within the COT.

5. A receiving method for uplink transmission, wherein, The method is executed by a base station, and the method includes: In response to there being a time interval within the Occupancy Time (COT) of the unlicensed spectrum, receiving a predetermined uplink transmission within the time interval; The step of, in response to there being a time interval within the Occupancy Time (COT) of the unlicensed spectrum, receiving a predetermined uplink transmission within the time interval, includes: In response to there being the time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying the second condition, receiving a predetermined uplink transmission within the time interval, wherein, the uplink channel satisfying the second condition includes: the termination time domain position of the uplink channel is within the COT; and / or, the priority of the uplink channel reaches a preset priority; The step of receiving a predetermined uplink transmission within the time interval includes at least one of the following: Receiving a pilot signal; In response to the uplink channel being configured before the time interval within the COT, receiving the uplink transmission on the uplink channel before the time interval; Receive an uplink transmission on an uplink channel after the time interval.

6. The method according to claim 5, wherein, The receiving a predetermined uplink transmission within the time interval in response to there being a time interval within the occupied time COT of the unlicensed spectrum includes: Receiving the predetermined uplink transmission within the time interval in response to at least one uplink channel after the time interval within the COT of the unlicensed spectrum satisfying a second condition and the interval duration of the time interval satisfying a first condition.

7. The method according to claim 6, wherein, The interval duration satisfying the first condition includes at least one of the following: The interval duration of the time interval is less than a threshold value; wherein, the threshold value is a fixed value; or, The threshold value is associated with at least one of the duration of the fixed period FFP of the unlicensed spectrum and the duration of the COT.

8. The method according to any one of claims 5 to 7, wherein The time interval includes at least one of the following: The time interval between the starting time domain position of the FFP where the COT is located and the starting time domain position of the first uplink channel within the COT; The time interval between the time domain resources of any two adjacent uplink channels within the COT.

9. A transmitting device for uplink transmission, wherein, Including: A sending module, configured to send a predetermined uplink transmission within the time interval in response to there being a time interval within the occupied time COT of the unlicensed spectrum; The sending a predetermined uplink transmission within the time interval in response to there being a time interval within the occupied time COT of the unlicensed spectrum includes: sending a predetermined uplink transmission within the time interval in response to there being a time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfying a second condition, wherein the uplink channel satisfying the second condition includes: the termination time domain position of the uplink channel is within the COT; and / or, the priority of the uplink channel reaches a preset priority; The sending a predetermined uplink transmission within the time interval includes at least one of the following: Sending a pilot signal; Repeating the uplink transmission on the uplink channel before the time interval in response to the uplink channel being configured before the time interval within the COT; Sending an uplink transmission on the uplink channel after the time interval.

10. The device according to claim 9, wherein, The sending module, configured to send the predetermined uplink transmission within the time interval in response to at least one uplink channel after the time interval within the COT of the unlicensed spectrum satisfying a second condition and the interval duration of the time interval satisfying a first condition.

11. The device according to claim 10, wherein, The interval duration satisfying the first condition includes: The interval duration of the time interval is less than a threshold value; Wherein, the threshold value is a fixed value; or, The threshold value is associated with at least one of the duration of the fixed period FFP of the unlicensed spectrum and the duration of the COT.

12. The apparatus according to any one of claims 9 to 11, wherein The time interval includes at least one of the following: The time interval between the starting time domain position of the FFP where the COT is located and the starting time domain position of the first uplink channel within the COT; The time interval between the time domain resources of any two adjacent uplink channels within the COT.

13. A receiving device for uplink transmission, wherein, Including: A receiving module, configured to receive a predetermined uplink transmission within the time interval in response to the existence of a time interval within the Occupancy Time (COT) of the unlicensed spectrum. The receiving of the predetermined uplink transmission within the time interval in response to the existence of a time interval within the COT of the unlicensed spectrum includes: receiving the predetermined uplink transmission within the time interval in response to the existence of a time interval within the COT of the unlicensed spectrum and at least one uplink channel after the time interval within the COT satisfies a second condition, where the uplink channel satisfying the second condition includes: the termination time-domain position of the uplink channel is within the COT; and / or, the priority of the uplink channel reaches a preset priority. The receiving of the predetermined uplink transmission within the time interval includes at least one of the following: Receiving a pilot signal; Receiving an uplink transmission on the uplink channel before the time interval in response to the uplink channel being configured before the time interval within the COT; Receiving an uplink transmission on the uplink channel after the time interval.

14. The apparatus according to claim 13, wherein, The receiving module is configured to receive the predetermined uplink transmission within the time interval in response to at least one uplink channel after the time interval within the COT of the unlicensed spectrum satisfying the second condition and the interval duration of the time interval satisfying a first condition.

15. The apparatus according to claim 14, wherein, The interval duration satisfying the first condition includes at least one of the following: The interval duration of the time interval is less than a threshold value; where the threshold value is a fixed value; or, The threshold value is associated with at least one of the duration of the Fixed Frame Period (FFP) of the unlicensed spectrum and the duration of the COT.

16. The device according to any one of claims 13 to 15, wherein The time interval includes at least one of the following: The time interval between the start time-domain position of the FFP where the COT is located and the start time-domain position of the first uplink channel within the COT; The time interval between the time-domain resources of any two adjacent uplink channels within the COT.

17. A communication device, comprising a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein, When the processor runs the executable program, it executes the method provided in any one of claims 1 to 4 or any one of claims 5 to 8.

18. A computer storage medium, which stores an executable program; after the executable program is executed by a processor, it can implement the method provided in any one of claims 1 to 4 or any one of claims 5 to 8.

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