Data Transmission Method, Device, Terminal, Network Side Device and Storage Medium

Abstract

An embodiment of the present application provides a data transmission method, apparatus, electronic device, and storage medium. The method includes: obtaining configuration information for data transmission, where the configuration information carries associated configuration information of a downlink signal and an uplink transmission resource; selecting a target downlink signal, and determining a target uplink transmission resource according to the associated configuration information of the downlink signal and the uplink transmission resource; determining HARQ information corresponding to the target uplink transmission resource and / or calculating a downlink path loss estimate, and sending uplink data according to the HARQ information and / or the downlink path loss estimate. The data transmission method, apparatus, electronic device, and storage medium provided by the embodiments of the present application enable a UE to perform uplink data transmission according to the configuration resources on the network side by configuring resources, thereby improving the efficiency of small data transmission.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a data transmission method, apparatus, terminal, network-side device, and storage medium. Background Art

[0002] The characteristics of efficient small data transmission are that for terminals (User Equipment, UE) in a non-connected state (for example, idle (IDLE) state and inactive (INACTIVE) state), it is necessary to avoid excessive signaling overhead caused by the resulting radio resource control (RRC) state transition and RRC connection establishment process, and complete the purpose of small data transmission through a very simple signaling process.

[0003] The characteristics of the small data transmission scheme are that the current data radio bearers (DRBs) of the UE are all in a suspended state rather than a released state. Therefore, before sending a resume request message, the UE can first resume the DRB and then piggyback the small data with RRC signaling. At this time, like a UE in the connected (CONNECTED) state, it can transmit data on the DRB. Thus, state transition is avoided, and the purpose of efficient small data transmission is achieved with less signaling overhead.

[0004] For the scenario of small data transmission for an INACTIVE state UE, the network side needs to configure small data transmission resources based on configured grant for the UE. However, there is currently no related solution for the configured resources of a new radio (NR) UE and how to use the configured resources for uplink data transmission, and the small data transmission efficiency is low. Therefore, how to perform data transmission based on configured resources to improve the small data transmission efficiency is an urgent problem to be solved.

[0005] Summary of the Application

[0006] Embodiments of this application provide a data transmission method, apparatus, terminal, network-side device, and storage medium, which can solve the technical problem of low small data transmission efficiency.

[0007] To solve the above technical problem, this application is implemented as follows:

[0008] In a first aspect, embodiments of this application provide a data transmission method, including:

[0009] The terminal obtains configuration information for data transmission, where the configuration information carries associated configuration information of a downlink signal and uplink transmission resources;

[0010] The terminal selects a target downlink signal, and determines a target uplink transmission resource according to the association configuration information of the downlink signal and the uplink transmission resource;

[0011] The terminal determines the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource and / or calculates a downlink path loss estimate, and sends uplink data according to the HARQ information and / or the downlink path loss estimate.

[0012] In a second aspect, an embodiment of the present application provides a data transmission method, including:

[0013] The network side device sends configuration information for data transmission to the terminal, and the configuration information carries the association configuration information of the reference signal and the uplink transmission resource;

[0014] The network side device receives uplink data sent by the terminal according to the HARQ information and / or the path loss reference signal; the HARQ information and / or the path loss reference signal is determined by the terminal according to the configuration information.

[0015] In a third aspect, an embodiment of the present application provides a data transmission apparatus, including:

[0016] An acquisition module, configured to acquire configuration information for data transmission, where the configuration information carries the association configuration information of the downlink signal and the uplink transmission resource;

[0017] A determination module, configured to select a target downlink signal, and determine a target uplink transmission resource according to the association configuration information of the downlink signal and the uplink transmission resource;

[0018] A first sending module, configured to determine the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource and / or calculate a downlink path loss estimate, and send uplink data according to the HARQ information and / or the downlink path loss estimate.

[0019] In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, including:

[0020] A second sending module, configured to send configuration information for data transmission to the terminal, where the configuration information carries the association configuration information of the reference signal and the uplink transmission resource;

[0021] A receiving module, configured to receive uplink data sent by the terminal according to the HARQ information and / or the path loss reference signal; the HARQ information and / or the path loss reference signal is determined by the terminal according to the configuration information.

[0022] Fifth aspect, an embodiment of the present application provides a terminal, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0023] Sixth aspect, an embodiment of the present application provides a network-side device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0024] Seventh aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0025] Eighth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect or the second aspect.

[0026] The data transmission method, device, electronic device, and storage medium provided by the embodiments of the present application configure resources, enabling the UE to perform uplink data transmission according to the configured resources on the network side, thereby improving the efficiency of small data transmission. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of a wireless communication system applicable to the embodiments of the present application;

[0028] Figure 2 It is one of the schematic diagrams of the data transmission method provided by the embodiments of the present application;

[0029] Figure 3 It is a schematic diagram of the order rule of the uplink transmission opportunity provided by the embodiments of the present application;

[0030] Figure 4 It is one of the schematic diagrams of the association relationship between the uplink transmission opportunity and the first reference signal provided by the embodiments of the present application;

[0031] Figure 5 It is another schematic diagram of the association relationship between the uplink transmission opportunity and the first reference signal provided by the embodiments of the present application;

[0032] Figure 6 It is another schematic diagram of the data transmission method provided by the embodiments of the present application;

[0033] Figure 7 It is one of the schematic diagrams of the data transmission device provided by the embodiments of the present application;

[0034] Figure 8 The second schematic diagram of the data transmission device provided by the embodiment of the present application;

[0035] Figure 9 The schematic diagram of the hardware structure of the terminal provided by the embodiment of the present application;

[0036] Figure 10 The schematic diagram of the hardware structure of the network - side device provided by the embodiment of the present application. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0038] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data may be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object may be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0039] It should be noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only in the above-mentioned systems and radio technologies, but also in other systems and radio technologies. However, the following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, although these technologies can also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0040] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. Terminal-side devices. Wearable devices include: bracelets, headphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can be a base station or a core network. Among them, the base station can be referred to as Node B, evolved Node B, access point, base transceiver station (Base Transceiver Station, BTS), radio base station, radio transceiver, basic service set (Basic Service Set, BSS), extended service set (Extended Service Set, ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0041] The data transmission method, device, terminal, network-side device and storage medium provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0042] Figure 2 It is one of the schematic diagrams of the data transmission method provided by the embodiments of the present application. As Figure 2 shown, the embodiments of the application provide a data transmission method, and the execution subject of the method can be a terminal. The method includes:

[0043] Step 201, the terminal obtains configuration information for data transmission, and the configuration information carries the associated configuration information of the downlink signal and the uplink transmission resource.

[0044] Step 202: The terminal selects a target downlink signal, and determines a target uplink transmission resource according to the association configuration information between the downlink signal and the uplink transmission resource.

[0045] Step 203: The terminal determines the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource and / or calculates a downlink path loss estimate, and sends uplink data according to the HARQ information and / or the downlink path loss estimate.

[0046] Optionally, the method further includes that the terminal receives downlink data according to the target downlink signal.

[0047] Optionally, the association configuration information between the downlink signal and the uplink transmission resource includes at least one of the following:

[0048] Association configuration information between the downlink signal and the uplink transmission occasion;

[0049] Identifier of the downlink signal;

[0050] First scrambling code identifier information of the uplink signal;

[0051] Second scrambling code identifier information of the uplink signal;

[0052] Code division multiplexing group information of the uplink signal;

[0053] Antenna port information of the uplink signal.

[0054] Optionally, the configuration information further includes at least one of the following:

[0055] Number of frequency division multiplexing of the uplink transmission occasion at a moment;

[0056] Resource allocation information of the uplink transmission occasion in the time domain;

[0057] Resource allocation information of the uplink transmission occasion in the frequency domain;

[0058] Downlink signal configuration information;

[0059] Duration information of the configuration grant response timer;

[0060] Measurement threshold for downlink signal selection;

[0061] First power boost step parameter;

[0062] Second power boost step parameter;

[0063] Maximum number of configuration grant transmissions;

[0064] Expected received power;

[0065] Uplink transmission occasion mask information;

[0066] Configure the authorization period;

[0067] Configure the duration information of the authorization timer;

[0068] The maximum number of uplink skips;

[0069] The resource allocation information of the uplink transmission opportunity in the time domain includes at least one of the following:

[0070] The number of time slots in each configured authorization period;

[0071] The number of uplink transmission opportunities included in each time slot;

[0072] The number of uplink transmission opportunities in each configured authorization period;

[0073] The resource allocation information of the uplink transmission opportunity in the frequency domain includes at least one of the following:

[0074] Bandwidth information;

[0075] The starting position information of the uplink transmission opportunity in the frequency domain.

[0076] Optionally, determining the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource includes

[0077] Determining the HARQ information corresponding to the target uplink transmission resource according to at least one of the following:

[0078] The total number of HARQ processes that can be used;

[0079] The numbers corresponding to the HARQ processes that can be used;

[0080] The total number of HARQ processes that can be used in each configured authorization period;

[0081] The numbers corresponding to the HARQ processes that can be used in each configured authorization period;

[0082] The numbers corresponding to the HARQ processes corresponding to the uplink transmission resources in each configured authorization period.

[0083] Optionally, the calculating the downlink path loss estimate includes:

[0084] Calculating the downlink path loss estimate according to the target downlink signal.

[0085] Optionally, the method further includes at least one of the following:

[0086] If the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within a configured authorization period, increment the first counter by 1, where the first counter is used to count the number of data transmission skips;

[0087] If the value of the first counter is greater than or equal to the maximum uplink skip count, or if the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within N consecutive configured periods, the terminal behavior includes at least one of the following:

[0088] Terminate the data transmission process based on the configured resources;

[0089] Release the uplink transmission resources;

[0090] Discard the configuration information.

[0091] Optionally, the method further includes that after the data transmission process based on the configured resources is triggered, the terminal behavior includes at least one of the following:

[0092] The Radio Resource Control (RRC) layer indicates to the Medium Access Control (MAC) layer that the data transmission process based on the configured resources is triggered;

[0093] After the MAC layer is indicated by the RRC layer that the data transmission process based on the configured resources is triggered, save the uplink transmission resources and the corresponding Hybrid Automatic Repeat reQuest (HARQ) information, and / or initialize or re-initialize the uplink transmission resources;

[0094] If no corresponding Medium Access Control Protocol Data Unit (MAC PDU) is generated on all uplink transmission opportunities within a configured period, the MAC layer sends an uplink skip indication to the upper layer;

[0095] If the upper layer receives the uplink skip indication, increment the first counter by 1;

[0096] If the value of the first counter is greater than or equal to the maximum uplink skip count, the terminal behavior includes at least one of the following:

[0097] Terminate the data transmission process based on the configured resources;

[0098] The RRC indicates to the MAC layer to end the data transmission process based on the configured resources;

[0099] Clear the uplink transmission resources and / or the corresponding HARQ information;

[0100] Release the uplink transmission resources;

[0101] Discard the configuration information.

[0102] Optionally, the method further includes:

[0103] Set a power boost step parameter according to a second power boost step parameter configured by a network-side device, a target access identity and / or a target access type provided by a higher layer, and a first indication message sent by the network-side device; the power boost step parameter includes a first power boost step parameter and a second power boost step parameter; the first indication message is used to instruct the terminal to use the second power boost step parameter.

[0104] Optionally, the method further includes at least one of the following:

[0105] Select a target downlink signal according to a measurement threshold for downlink signal selection;

[0106] Generate an uplink signal according to the selected target downlink signal and / or association configuration information of the downlink signal and the uplink signal;

[0107] Determine a nearest available uplink transmission opportunity according to the selected target downlink signal;

[0108] Determine an uplink grant and corresponding HARQ information according to the selected uplink transmission opportunity;

[0109] Deliver the uplink grant and the corresponding HARQ information to a HARQ entity.

[0110] Optionally, the HARQ entity performs uplink skipping according to a predefined rule and reports an uplink skipping indication to a higher layer.

[0111] Optionally, if a MAC PDU is obtained, instruct a corresponding HARQ process to perform data transmission.

[0112] Optionally, during the process of transmitting uplink data, it further includes at least one of the following:

[0113] Increment a third counter by 1 according to a second counter, an indication of a suspended power boost counter, a listen-before-talk LBT failure indication, an uplink skipping indication, and the selected target downlink signal;

[0114] Determine a data transmission power according to the third counter, the power boost step parameter, a downlink path loss estimate, and an expected received power.

[0115] Optionally, the receiving of downlink data includes:

[0116] After a MAC PDU is transmitted in an uplink transmission opportunity, start or restart a configured grant response timer and / or start or restart a configured grant timer, and listen for a physical downlink control channel PDCCH;

[0117] The modulation reference signal antenna port of the PDCCH has the same quasi-orthogonal characteristic as the target downlink signal.

[0118] Optionally, during the operation of the configured grant response timer, the terminal behavior includes at least one of the following:

[0119] If an indication that the data transmission is correct is received, stop the configured grant response timer and / or the configured grant timer;

[0120] If an indication that the data transmission is correct is received, restart the T319 timer;

[0121] If an indication that the data transmission is correct is received, set the first counter value to 0;

[0122] If a PDCCH for scheduling an uplink retransmission is received, stop the configured grant response timer and / or restart the configured grant timer;

[0123] If a PDCCH for scheduling an uplink new transmission is received, stop the configured grant response timer and / or the configured grant timer;

[0124] If a PDCCH for scheduling a downlink transmission is received and the corresponding scheduled MAC PDU is successfully decoded, the terminal behavior includes at least one of the following:

[0125] Stop the configured grant response timer and / or the configured grant timer;

[0126] Disassemble and / or demultiplex the MAC PDU;

[0127] Report a hybrid automatic repeat request acknowledgment HARQ-ACK indication;

[0128] If a PDCCH for scheduling a downlink transmission is received and the corresponding scheduled MAC PDU is not successfully decoded, report a hybrid automatic repeat request negative acknowledgment HARQ-NACK indication.

[0129] Optionally, after the configured grant response timer expires, the terminal behavior includes at least one of the following:

[0130] Increment the second counter by 1;

[0131] If the value of the second counter is equal to the configured grant transmission maximum number threshold plus 1, the terminal behavior includes at least one of the following:

[0132] Report a failure or fallback indication to the upper layer;

[0133] Terminate the data transmission process based on the configured resources;

[0134] Release the uplink transmission resources;

[0135] Discard the configuration information;

[0136] Clear the uplink transmission resources and the corresponding HARQ information.

[0137] Specifically, the UE receives dedicated uplink resources configured by the network side (referred to as "uplink transmission resources" for short) to send uplink data. In the embodiments of this application, the first reference signal is used as a downlink signal, and the second reference signal is used as an uplink signal as an example for illustration.

[0138] For example, the network device side carries the configuration information of the configured grant in the RRC Release message for the INACTIVE state UE, and this configuration information includes the Physical Uplink Shared Channel (PUSCH) resources dedicated to the INACTIVE UE to send uplink data.

[0139] Optionally, the PUSCH resources may include at least one of the following:

[0140] 1. Uplink transmission opportunity;

[0141] 2. Second reference signal resources;

[0142] Optionally, the configuration information of the configured grant may include at least one of the following:

[0143] 1. The number of frequency division multiplexing (FDMed) of the uplink transmission opportunity at a moment (for example, 1, 2, 4, 8).

[0144] 2. Resource allocation information of the uplink transmission opportunity in the time domain.

[0145] Optionally, the resource allocation information of the uplink transmission opportunity in the time domain may include at least one of the following:

[0146] (1) The number of slot allocations and the number of first uplink transmission opportunity allocations information, where the number of slot allocations information indicates the number of slots within a CG periodicity, and this slot contains one or more uplink transmission opportunities. The number of first uplink transmission opportunity allocations information indicates the number of uplink transmission opportunities within a slot.

[0147] (2) The number of second uplink transmission opportunity allocations information, and the number of second uplink transmission opportunity allocations information is used to indicate the number of uplink transmission opportunities within a CG periodicity.

[0148] Optionally, the above-mentioned slots and / or uplink transmission opportunities are continuous in the time domain.

[0149] 3. Resource allocation information of the uplink transmission opportunity in frequency domain.

[0150] Optionally, the resource allocation information of the uplink transmission opportunity in frequency domain may include at least one of the following:

[0151] (1) Bandwidth information.

[0152] For example, the number of physical resource blocks (PRBs) of each uplink transmission opportunity.

[0153] (2) Starting position information of the uplink transmission opportunity in the frequency domain.

[0154] For example, the offset before the lowest uplink transmission opportunity and PRB 0 in the frequency position, or for another example, the frequency starting position of the lowest uplink transmission opportunity in the frequency position is PRB 0 / RBG 0). RBG is the resource block group.

[0155] 4. First reference signal configuration information.

[0156] The first reference signal configuration information indicates which first reference signals can be used for the data transmission process based on the configured resources (e.g., small data transmission process).

[0157] For example, the network side indicates which synchronization signal blocks (SSBs) in the serving cell can be used for small data transmission through a bitmap.

[0158] Optionally, the first reference signal is a downlink path loss reference signal.

[0159] For example, the first reference signal is one of SSB or Channel State Information - Reference Signal (CSI - RS).

[0160] Optionally, if the first reference signal configuration information is not configured, the UE considers that all the first reference signals (e.g., SSB) indicated in the system message for transmission can be used for the data transmission process based on the configured resources.

[0161] 5. Association configuration information between the first reference signal and the uplink transmission opportunity.

[0162] The association configuration information between the first reference signal and the uplink transmission timing indicates how many first reference signals are associated with one uplink transmission timing (e.g., 1 / 8 means 1 SSB is mapped to 8 uplink transmission timings, and 8 means 8 SSBs are mapped to 1 uplink transmission timing, so that there is an association relationship between the SSB and the uplink transmission timing).

[0163] 6. The association configuration information between the first reference signal and the second reference signal.

[0164] Optionally, the association configuration information between the first reference signal and the second reference signal may include at least one of the following:

[0165] (1) The identification or index value of the first reference signal (e.g., SSB-index).

[0166] (2) The first scrambling identification information of the second reference signal (e.g., ScramblingID0 = 0), and the first scrambling identification information is used for the scrambling initialization of the first reference signal.

[0167] (3) The second scrambling identification information of the second reference signal (e.g., ScramblingID1 = 1), and the second scrambling identification information is used for the scrambling initialization of the second reference signal.

[0168] (4) The code division multiplexing group (CDM group) information of the second reference signal (e.g., λ = 0).

[0169] (5) The antenna port information of the second reference signal (e.g., the demodulation reference signal port index value (DMRS port index)).

[0170] For example, if the SSB-index is 1, ScramblingID0 = 0, ScramblingID1 = 1, λ = 0, and DMRS port index = 0 in the association configuration information between the first reference signal and the second reference signal, it means that there is an association between SSB1 and the DMRS signal constituted according to ScramblingID0 = 0, ScramblingID1 = 1, λ = 0, and DMRS port index = 0. Another example, if the SSB-index is 2, ScramblingID0 = 11, ScramblingID1 = 20, and λ = 0 in the association configuration information between the first reference signal and the second reference signal, it means that there is an association between SSB2 and the DMRS signal constituted according to ScramblingID0 = 11, ScramblingID1 = 20, and λ = 0. Examples are not given one by one here.

[0171] Optionally, the first reference signal can be at least one of SSB or CSI-RS, and the second reference signal can be an uplink demodulation reference signal (DMRS).

[0172] Optionally, the association configuration information of the first reference signal and the second reference signal includes one or more pieces of information on the association relationship between the first reference signal and the second reference signal. The configuration information can be a list, and each element in the list indicates the association information between a first reference signal and a second reference signal.

[0173] 7. Configure the duration information of the configuration grant response timer (CG response timer).

[0174] 8. Measurement threshold for the selection of the first reference signal. (A threshold value, e.g., rsrp-ThresholdSSB).

[0175] 9. First (low priority) power ramping step parameter.

[0176] 10. Second (high priority) power ramping step parameter.

[0177] 11. Maximum number of CG transmissions (a threshold value).

[0178] 12. Expected received power.

[0179] 13. Uplink transmission opportunity mask information. The uplink transmission opportunity mask information is used to explicitly indicate the uplink transmission opportunities available for the data transmission process based on the configured resources.

[0180] 14. CG period.

[0181] 15. Configure the duration information of the configuration grant timer (CG timer).

[0182] 16. Maximum number of uplink skips (a threshold value).

[0183] The network side or the protocol predefines any one of the following rules:

[0184] 1. Order rule for uplink transmission opportunities.

[0185] The order rule for uplink transmission opportunities can include at least one of the following:

[0186] (1) First, increase sequentially in the frequency domain according to the number of FDMed uplink transmission opportunities;

[0187] (2) Subsequently, it increases sequentially within a time slot according to the number of allocated TDMed uplink transmission opportunities.

[0188] (3) Subsequently, it increases sequentially according to the number of allocated TDMed uplink transmission opportunities.

[0189] (4) Finally, it increases sequentially according to the number of allocated time slots.

[0190] Figure 3 It is a schematic diagram of the order rule for the uplink transmission opportunity provided by the embodiment of this application. Assume that in the configuration, the number of frequency-division multiplexing of the uplink transmission opportunity at a moment is 2, the number of allocated uplink transmission opportunities is 2, and the number of allocated time slots is 2. Then the numbers of the uplink transmission opportunities are as Figure 3 shown.

[0191] 2. Association between the first reference signal and the uplink transmission opportunity.

[0192] For example, the UE first verifies whether all configured uplink transmission opportunities are valid. Then, for each CG configuration, according to the number of all valid uplink transmission opportunities and the number of configured SSBs within a CG period, it is used to determine the number of mapping rounds (mappingcycle) for mapping the SSB and the uplink transmission opportunity. Assume that the network configures SSB1 / 2 / 3 / 4, and the uplink transmission opportunities #1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 within a CG period are all valid. Then, two rounds of mapping are performed at this time (i.e., floor(8 / 4) = 2). Finally, SSB1 is associated with uplink transmission opportunities #1 and 5, SSB2 is associated with uplink transmission opportunities #2 and 6, and so on.

[0193] 3. Hybrid automatic repeat request (HARQ) process information for new transmissions.

[0194] (1) The protocol predefines or the network device configures the HARQ process information available to the UE.

[0195] For example, for a CG configuration, within a CG period, for any uplink transmission opportunity, its corresponding HARQ process is pre-defined by the protocol or configured by the network side as 0. Similarly, within the subsequent CG period, for any uplink transmission opportunity, its corresponding HARQ process is pre-defined by the protocol or configured by the network side as 0.

[0196] (2) The protocol predefines or the network side configures the HARQ process information available to the UE.

[0197] For example, for a CG configuration, in the first cycle, for any uplink transmission opportunity, its corresponding HARQ process is agreed to be 0; in the second cycle, for any CG, the HARQ processes available to the UE are agreed to be 1, and so on. Or it can be understood that within a CG cycle, the HARQ process corresponding to any uplink transmission opportunity is the HARQ process corresponding to the uplink transmission opportunity with the smallest number. Herein, there is no limitation on how to determine the HARQ process corresponding to the uplink transmission opportunity with the smallest number.

[0198] 4. Association between the first reference signal and the path loss reference signal.

[0199] When performing data transmission based on configured resources, the path loss reference signal (pathlossRS) corresponding to the PUSCH is self-selected by the UE.

[0200] Optionally, the pathloss RS of the PUSCH is the first reference signal associated with this PUSCH transmission on the currently serving cell's currently active downlink bandwidth part (DL BWP) (e.g., the initial DL BWP).

[0201] For example, the network configures SSB1 / 2 / 3 / 4, and the UE triggers the data transmission process based on configured resources. Then, the UE selects SSB2 according to the measurement quality threshold for the selection of the first reference signal (i.e., SSB2 is the target downlink signal), and performs PUSCH transmission according to the uplink transmission opportunity and the second reference signal associated with SSB2. Then, the UE uses SSB2 as the pathloss RS of the PUSCH, thereby calculating the downlink path loss estimate by using SSB2.

[0202] Optionally, before using the uplink transmission resources for data transmission, it includes:

[0203] Step 0: If the data transmission process based on configured resources is not triggered on all uplink transmission opportunities within a CG cycle, then perform the following steps:

[0204] Optionally, increment the first counter by 1.

[0205] This first counter is used to count the number of data transmission skips. If the value of the first counter = the maximum uplink skip count, that is, when the value of the first counter is greater than the maximum uplink skip count, then terminate (end) the data transmission process based on configured resources, release the uplink transmission resources, and discard the configuration information.

[0206] Optionally, if the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within N consecutive CG cycles, the data transmission process based on the configured resources is terminated, the uplink transmission resources are released, and the configuration information is discarded; the threshold value N can be configured by the network side device (NW), or agreed upon by the protocol, or predefined.

[0207] Optionally, this process can be performed according to each configuration grant period (per CG periodicity) in each configuration grant configuration (per CG configuration).

[0208] For example, assume that the network side configures two CG configurations, then the UE needs to perform the above process for each CG cycle corresponding to CG configuration1 / 2.

[0209] Step 1: After the data transmission process based on the configured resources is triggered, at least one of the following can be executed:

[0210] 1. The RRC layer indicates to the MAC layer that the data transmission process based on the configured resources is triggered.

[0211] 2. After the MAC layer is indicated by the RRC layer that the data transmission process based on the configured resources is triggered, it saves the dedicated uplink resources and the corresponding HARQ information.

[0212] Optionally, the uplink resources can also be understood as uplink grants (UL grants) or configured grants (CGs).

[0213] 3. The MAC layer initializes / re-initializes the dedicated uplink resources.

[0214] 4. If no corresponding MAC PDU is generated on all uplink transmission opportunities within a CG cycle (which can be understood as no PUSCH transmission is performed), the MAC layer sends an uplink skip indication to the upper layer (RRC layer), and the upper layer increments a first counter by 1 (this first counter is used to count the number of data transmission skips).

[0215] If the value of the first counter = the maximum number of uplink skips, that is, when the value of the first counter is greater than the maximum number of uplink skips, the terminal behavior includes at least one of the following:

[0216] (1) Terminate the data transmission process based on the configured resources.

[0217] (2) The RRC indicates to the MAC layer to terminate the data transmission process based on the configured resources.

[0218] (3) The MAC clears the dedicated uplink resources and the corresponding HARQ information saved in step 1.

[0219] (4) The RRC discards all the saved configuration information of step 0.

[0220] Step 2: Before the UE sends uplink data through dedicated uplink resources, it first performs initialization.

[0221] If the network side configures a high-priority power ramping step parameter, and if the upper layer provides access ID 1 or 2, and if the network side instructs the UE to use the high-priority power ramping step parameter, then the UE sets the high-priority power ramping step parameter.

[0222] Otherwise, the UE sets the low-priority power ramping step parameter.

[0223] Optionally, this process is performed per CG configuration.

[0224] For example, assume that the network side configures two CG configurations, then the UE needs to perform the above process for the CG configuraton1 / 2 pair.

[0225] Step 3: Before the UE sends uplink data through dedicated uplink resources, it first selects the transmission resources.

[0226] 1. According to the measurement threshold for the first reference signal selection, the UE first selects the first reference signal for the data transmission process based on the configured resources.

[0227] For example, assume that the network side configures SSB1 / 2 / 3 / 4, and the first reference signal is selected according to the quality threshold value configured by the network (for example, the threshold value is -80 dBm). The UE selects the first reference signal according to the latest measured L1-RSRP of SSB1 / 2 / 3 / 4. Assume that only the L1-RSRP of SSB3 (for example: -70 dBm) is higher than the threshold value, then the UE selects SSB3.

[0228] 2. Generate a second reference signal according to the selected first reference signal and / or the associated configuration information of the first reference signal and the second reference signal.

[0229] For example, the associated configuration information of the first reference signal and the second reference signal configures the SSB-index as 2, ScramblingID0 = 11, ScramblingID1 = 20, λ = 0. According to the selected first reference signal being SSB2, then the second reference signal (DMRS) is constituted according to ScramblingID0 = 11, ScramblingID1 = 20, λ = 0.

[0230] 3. Determine a most recently available uplink transmission opportunity based on the selected first reference signal (there is an association relationship between the uplink transmission opportunity and the selected first reference signal).

[0231] 4. Optionally, the UE randomly selects one with equal probability from consecutive uplink transmission opportunities associated with the selected first reference signal.

[0232] For example, Figure 4 is one of the schematic diagrams of the association relationship between the uplink transmission opportunity and the first reference signal provided in the embodiments of this application. As Figure 4 shown, assume that the network side configures SSB1 / 2, and the first reference signal is selected according to the quality threshold value configured by the network (for example, the threshold value is -80 dBm). The UE selects SSB2 according to the latest measured L1-RSRP of SSB1 / 2. Assume that only the L1-RSRP of SSB2 (for example: -70 dBm) is higher than the threshold value. Then the UE selects SSB2, and then randomly selects one with equal probability from the two uplink transmission opportunities (#3 / 4) associated with SSB2 (for example #3). It can be understood that the uplink transmission opportunity (#3 / 4) is the most recently available uplink transmission opportunity corresponding to SSB2.

[0233] Optionally, determining a most recently available uplink transmission opportunity can also be based on the selected first reference signal and uplink transmission opportunity mask information.

[0234] For example, Figure 5 is the second of the schematic diagrams of the association relationship between the uplink transmission opportunity and the first reference signal provided in the embodiments of this application. As Figure 5As shown, assume that the network side configures SSB1 / 2, and the first reference signal is selected according to the quality threshold value configured by the network (for example, the threshold value is -80 dBm). The UE selects SSB2 according to the latest measured L1-RSRP of SSB1 / 2. Assume that only the L1-RSRP of SSB2 (for example: -70 dBm) is higher than the threshold value. Assume that the value indicated by the uplink transmission timing mask information is 1 (for example: 1 indicates that the UE uses the first one of the uplink transmission timings associated with the selected SSB). Then the UE selects the nearest available SSB2#0. Assume that the value indicated by the uplink transmission timing mask information is 0 (for example: 0 indicates that all uplink transmission timings associated with the selected SSB can be used). Then the UE randomly selects one (for example #0) with equal probability from the two nearest available uplink transmission timings (SSB2#0 / 1) associated with SSB2. Finally, the UE transmits PUSCH on the selected uplink transmission timing (for example #0) according to the selected SSB (for example: SSB2). The uplink DMRS of the PUSCH generates (generate) the second reference signal according to the selected SSB (the uplink DMRS constituted by ScramblingID0 = 11, ScramblingID1 = 20, and λ = 0).

[0235] 5. Determine the uplink grant (UL grant) and the corresponding HARQ information according to the selected uplink transmission timing. For example, the HARQ process identification code (HARQ process ID), the new data indication bit (new data indicator bit, NDIbit), and the transport block size (Transport Block Size, TBS).

[0236] 6. Deliver the UL grant and the corresponding HARQ information to the HARQ entity.

[0237] Optionally, the UL grant and the corresponding HARQ information are delivered to the HARQ entity only when the CG response timer and / or the CG timer corresponding to the HARQ process ID corresponding to the UL grant are not running (it can be understood that during the running of the CG response timer, the corresponding HARQ process cannot be used for new transmission or retransmission).

[0238] Optionally, the UL grant and the corresponding NDI bit are toggled only when the CG timer corresponding to the UL grant and the HARQ process ID is not running (it can be understood that during the running of the CG timer, the corresponding HARQ process cannot be used for new transmissions).

[0239] 7. Optionally, the HARQ entity performs UL skipping according to predefined rules, does not generate a MAC PDU, and reports an UL skipping indication to the RRC layer.

[0240] 8. Optionally, this process can be performed per CG configuration per CG period.

[0241] For example, assuming that the network side configures two CG configurations, the UE needs to perform the above process for each CG period corresponding to CG configuration 1 / 2.

[0242] Step 4.1: If a MAC PDU is obtained, indicate the corresponding HARQ process to send data.

[0243] Step 4.2: When the UE sends uplink data through dedicated uplink resources:

[0244] 1. According to the second counter, suspend the indication of the power ramping counter, listen before talk (LBT) failure indication, UL skipping indication, and the first reference signal selected for this transmission, and increment the third counter by 1.

[0245] For example, if the value of the second counter is greater than 1, and no indication of a suspending power ramping counter is received from the physical layer, and no LBT failure indication is received from the physical layer, and no UL skipping indication is generated by the MAC layer, and the first reference signal selected for this transmission has not changed (understood as the first reference signal selected for this transmission is the same as the one selected for the previous transmission), then increment the third counter by 1. This third counter is used to calculate the cumulative power ramping sum.

[0246] 2. The MAC layer gives the cumulative power ramping sum (for example, (the value of the third counter - 1) * the set power ramping step parameter) and the expected received power to the physical layer.

[0247] 3. The physical layer can determine the uplink transmission power for data transmission based on the cumulative power ramping sum, the downlink path loss estimate, and the desired received power.

[0248] 4. Optionally, this process is carried out per CG configuration per CG cycle.

[0249] For example, assuming that the network side configures two CG configurations, the UE needs to perform the above process for each CG cycle corresponding to CG configuration 1 / 2.

[0250] Step 5: The UE sends uplink data through dedicated uplink resources and then receives a response:

[0251] 1. When a MAC PDU is transmitted during an uplink transmission opportunity (e.g., the PUSCH (CG-PUSCH) corresponding to configured grant), regardless of whether there is a potential measurement gap, the UE starts the CG response timer at the first PDCCH occasion after the CG-PUSCH. During the running of this timer, the UE listens for the PDCCH scrambled with a certain RNTI.

[0252] Optionally, the UE starts the CG timer (whose start time is the same as that of the CG response timer).

[0253] 2. The UE assumes that the first reference signal selected in step 3 (which can be understood as the first reference signal having an associated relationship with the transmission of CG-PUSCH) and the DM-RS antenna port (which can be understood as the DMRS of the PDCCH) have the same quasi co-location properties.

[0254] 3. Optionally, the CG response timer is maintained per HARQ process.

[0255] 4. Optionally, this process is carried out per CG configuration per CG cycle. For example, assuming that the network side configures two CG configurations, the UE needs to perform the above process for each CG cycle corresponding to CG configuration 1 / 2.

[0256] Optionally, during the running of the CG response timer:

[0257] 1. If the UE receives an indication that the data transmission is correctly acknowledged, it stops the CGresponse timer and / or the CG timer corresponding to the HARQ process. Optionally, the indication that the data transmission is correctly acknowledged can be carried on the PDCCH. Optionally, the indication that the data transmission is correctly acknowledged is indicated per HARQ process. Optionally, the indication that the data transmission is correctly acknowledged for one or more HARQ processes can be carried on one PDCCH.

[0258] 2. Optionally, if the UE receives an indication that the data transmission is correctly acknowledged, it restarts the T319 timer.

[0259] 3. Optionally, if the UE receives an indication that the data transmission is correctly acknowledged, it sets the first counter value to 0.

[0260] 4. If the UE receives a PDCCH for scheduling an uplink retransmission, it stops the CGresponse timer and / or restarts the CG timer corresponding to the HARQ process.

[0261] The retransmission is performed according to the content of the PDCCH. After the PUSCH for retransmission is sent, regardless of whether there is a potential measurement gap, the UE starts the CG response timer at the first PDCCH occasion after the PUSCH, and starts / restarts the CG timer.

[0262] 5. If the UE receives a PDCCH for scheduling an uplink new transmission, it stops the CGresponse timer and / or the CG timer corresponding to the HARQ process.

[0263] The new transmission is performed according to the content of the PDCCH. After the PUSCH for new transmission is sent, regardless of whether there is a potential measurement gap, the UE starts the CG response timer at the first PDCCH occasion after the PUSCH, and starts / restarts the CG timer.

[0264] 6. If the UE receives a PDCCH for scheduling a downlink transmission and the corresponding scheduled PDSCH is successfully decoded, it stops the CG response timer and / or stops the CG timer corresponding to the HARQ process.

[0265] Then, the UE disassembles and demultiplexes the MAC PDU. The UE reports the HARQ-ACK indication according to the UCI resource indication information of the PDCCH.

[0266] Optionally, the PDCCH carries response indication information, which indicates which uplink HARQ process the downlink scheduling responds to (for example, the PDCCH carries response indication information indicating that the downlink scheduling responds to the uplink HARQ process with ID 0).

[0267] 7. If the UE receives a PDCCH for scheduling a downlink transmission but the corresponding scheduled PDSCH is not successfully decoded, the UE reports the HARQ-NACK indication according to the UCI resource indication information of the PDCCH.

[0268] Optionally, the PDCCH carries response indication information, which indicates which uplink HARQ process the downlink scheduling responds to (for example, the PDCCH carries response indication information indicating that the downlink scheduling responds to the uplink HARQ process with ID 0).

[0269] 8. The UE assumes that the first reference signal selected in the most recent step 3 (which can be understood as the first reference signal associated with the transmission of CG-PUSCH) and the DM-RS antenna port (which can be understood as the DMRS of the PDCCH) have the same quasi co-location properties.

[0270] Optionally, after the CG response timer expires:

[0271] 1. After the CG response timer expires, increment the second counter by 1;

[0272] 2. If the value of the second counter = the CG transmission maximum number threshold + 1, that is, when the value of the second counter is greater than the configured grant transmission maximum number threshold, perform at least one of the following:

[0273] (1) Report a failure / fallback indication to the upper layer (RRC).

[0274] (2) End the data transmission process based on the configured resources.

[0275] (3) The MAC clears the dedicated uplink resources and the corresponding HARQ information saved in step 1.

[0276] (4) The RRC clears all the saved resources and information in step 0.

[0277] Otherwise, perform the resource selection process in step 3.

[0278] 3. Optionally, the CG transmission counter is maintained per HARQ process; if the maximum / minimum value among the second counter values corresponding to all HARQ processes = the CG transmission maximum number threshold + 1, that is, the maximum or minimum value among the second counter values corresponding to all HARQ processes is greater than the configured grant transmission maximum number threshold, then perform at least one of the following:

[0279] (1) Report a failure / fallback indication to the upper layer (RRC).

[0280] (2) End the data transmission process based on the configured resources.

[0281] (3) The MAC clears the dedicated uplink resources and the corresponding HARQ information saved in step 1.

[0282] (4) The RRC clears all the saved resources and information in step 0.

[0283] Otherwise, perform the resource selection process in step 3.

[0284] 4. The UE assumes that the first reference signal selected in the most recent step 3 (which can be understood as the first reference signal having an associated relationship with the transmission of CG-PUSCH) and the DM-RS antenna port (which can be understood as the DMRS of the PDCCH) have the same quasi co-location properties.

[0285] The following takes the data transmission based on the configured resources with only one CG configuration and adopting the first HARQ process rule as an example to illustrate the method in the above embodiments.

[0286] Step A (at time T0): The UE receives dedicated uplink resources through an RRC Release message. The dedicated uplink resources are configured with one CG configuration.

[0287] Step B (during the period from T0 to T1): After receiving the above configuration, the UE (e.g., the RRC layer) adds 1 to the first counter in each CG period if the data transmission process based on the configured resources is not triggered on all (valid) uplink transmission opportunities within the CG period.

[0288] Step C (at time T1): The data transmission process based on the configured resources is triggered by the UE (e.g., the RRC layer). At this time, the RRC layer instructs the MAC layer that the data transmission process based on the configured resources is triggered. Then the MAC layer saves the dedicated uplink resources and the corresponding HARQ information, and initializes the dedicated uplink resources.

[0289] Step D (at time T2): Set the power ramping step parameter according to Step 2.

[0290] Step E (at time T3): In each CG cycle, perform resource selection according to Step 3 (select the SSB, determine the DMRS associated with the selected SSB, determine the uplink transmission, and determine the UL grant and the corresponding HARQ information according to the uplink transmission timing).

[0291] Step F (at time T4): Transmit the uplink data according to Steps 4-1 and 4-2.

[0292] Step G (at time T5): Start the CG response timer according to Step 5 and monitor the PDCCH. The UE assumes that the antenna port of the PDCCH has the same quasi-orthogonal characteristic as the SSB selected in Step E.

[0293] Step H-1 (at time T6): During the operation of the CG response timer, the UE receives an indication that the data transmission is confirmed correctly, stops the CG response timer, restarts the T319 timer, and (the RRC layer) sets the first counter value to 0.

[0294] Step H-2 (at time T6): During the operation of the CG response timer, the UE receives the PDCCH for scheduling the downlink transmission and the corresponding scheduled PDSCH is successfully decoded, stops the CG response timer, and reports the HARQ-ACK indication.

[0295] Step H-1 (at time T6): During the operation of the CG response timer, the UE receives an indication that the data transmission is confirmed correctly, stops the CG response timer, restarts the T319 timer, and (the RRC layer) sets the first counter value to 0.

[0296] Step H-3 (at time T6): During the operation of the CG response timer, the UE receives a PDCCH for scheduling a downlink transmission, the corresponding scheduled PDSCH is successfully decoded, and the PDCCH carries an indication confirming the correct data transmission. Stop the CG response timer, report the HARQ-ACK indication, and restart the T319 timer.

[0297] Step I (at time T7): The UE can perform a resource selection process within the nearest available CG period, and then execute steps E->F->G->H->I to achieve the transmission of new data.

[0298] The data transmission method proposed in the embodiments of the present application includes a method for configuring resources, a method for associating a downlink first reference signal with the configured resources, a method for configuring resource selection, and a method for data sending / response receiving based on the configured resources, enabling the UE to transmit uplink data according to the configured resources on the network side and improving the efficiency of small data transmission.

[0299] Figure 6 This is the second schematic diagram of the data transmission method provided by the embodiments of the present application. As Figure 6 shown, the embodiments of the present application provide a data transmission method, and the execution entity thereof may be a network-side device. The method includes:

[0300] Step 601: The network-side device sends configuration information for data transmission to the terminal, and the configuration information carries the association configuration information of the reference signal and the uplink transmission resource.

[0301] Step 602: The network-side device receives uplink data sent by the terminal according to the HARQ information and / or the path loss reference signal; the HARQ information and / or the path loss reference signal are determined by the terminal according to the configuration information.

[0302] Optionally, the method further includes:

[0303] Sending downlink data to the terminal according to the target downlink signal selected by the terminal.

[0304] Optionally, the sending of the downlink data includes:

[0305] Sending a PDCCH after transmitting a MAC PDU in the uplink transmission opportunity;

[0306] The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

[0307] Specifically, the data transmission method provided by the embodiments of the present application is the same as the method described in the corresponding embodiments above and can achieve the same technical effects. The only difference lies in the execution subject. Therefore, the same parts and beneficial effects as those in the corresponding method embodiments above will not be specifically described herein.

[0308] It should be noted that for the data transmission method provided by the embodiments of the present application, the execution subject can be a data transmission device, or a control module in the data transmission device for executing the data transmission method. In the embodiments of the present application, the data transmission method executed by the data transmission device is taken as an example to illustrate the data transmission device provided by the embodiments of the present application.

[0309] Figure 7 One of the schematic diagrams of the data transmission device provided by the embodiments of the present application is shown as Figure 7 As shown, the embodiments of the present application provide a data transmission device, including an acquisition module 701, a determination module 702, and a first transmission module 703, where:

[0310] The acquisition module 701 is configured to acquire configuration information for data transmission, where the configuration information carries associated configuration information of a downlink signal and an uplink transmission resource; the determination module 702 is configured to select a target downlink signal and determine a target uplink transmission resource according to the associated configuration information of the downlink signal and the uplink transmission resource; the first transmission module 703 is configured to determine hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource and / or calculate a downlink path loss estimate, and transmit uplink data according to the HARQ information and / or the downlink path loss estimate.

[0311] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0312] Optionally, it further includes a reception module, configured to receive downlink data according to the target downlink signal.

[0313] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0314] Optionally, the associated configuration information of the downlink signal and the uplink transmission resource includes at least one of the following:

[0315] Associated configuration information of the downlink signal and the uplink transmission opportunity;

[0316] Identification of the downlink signal;

[0317] First scrambling code identification information of the uplink signal;

[0318] Second scrambling code identification information of the uplink signal;

[0319] Code division multiplexing group information of the uplink signal;

[0320] Antenna port information of the uplink signal.

[0321] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0322] Optionally, the configuration information further includes at least one of the following:

[0323] The number of frequency division multiplexing on one moment of the uplink transmission opportunity;

[0324] Resource allocation information of the uplink transmission opportunity in the time domain;

[0325] Resource allocation information of the uplink transmission opportunity in the frequency domain;

[0326] Downlink signal configuration information;

[0327] Duration information of the configuration grant response timer;

[0328] Measurement threshold for downlink signal selection;

[0329] First power boost step parameter;

[0330] Second power boost step parameter;

[0331] Maximum number of configuration grant transmissions;

[0332] Expected received power;

[0333] Uplink transmission opportunity mask information;

[0334] Configuration grant period;

[0335] Duration information of the configuration grant timer;

[0336] Maximum number of uplink skips;

[0337] The resource allocation information of the uplink transmission opportunity in the time domain includes at least one of the following:

[0338] The number of time slots in each configuration grant period;

[0339] The number of uplink transmission opportunities included in each time slot;

[0340] The number of uplink transmission opportunities within each configured grant period;

[0341] The resource allocation information of the uplink transmission opportunity in the frequency domain includes at least one of the following:

[0342] Bandwidth information;

[0343] The starting position information of the uplink transmission opportunity in the frequency domain.

[0344] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0345] Optionally, determining the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource includes

[0346] Determining the HARQ information corresponding to the target uplink transmission resource according to at least one of the following:

[0347] The total number of available HARQ processes;

[0348] The numbers corresponding to the available HARQ processes;

[0349] The total number of available HARQ processes within each configured grant period;

[0350] The numbers corresponding to the available HARQ processes within each configured grant period;

[0351] The numbers corresponding to the HARQ processes corresponding to the uplink transmission resources within each configured grant period.

[0352] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0353] Optionally, calculating the downlink path loss estimate includes:

[0354] Calculating the downlink path loss estimate according to the target downlink signal.

[0355] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0356] Optionally, it further includes at least one of the following:

[0357] If the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within a configuration authorization period, the first counter is incremented by 1, and the first counter is used to count the number of data transmission skips;

[0358] If the value of the first counter is greater than or equal to the maximum uplink skip count, or if the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within N consecutive configuration periods, the terminal behavior includes at least one of the following:

[0359] Terminate the data transmission process based on the configured resources;

[0360] Release the uplink transmission resources;

[0361] Discard the configuration information.

[0362] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described again.

[0363] Optionally, it further includes that after the data transmission process based on the configured resources is triggered, the terminal behavior includes at least one of the following:

[0364] The RRC layer indicates to the MAC layer that the data transmission process based on the configured resources is triggered;

[0365] After the MAC layer is indicated by the RRC layer that the data transmission process based on the configured resources is triggered, it saves the uplink transmission resources and the corresponding HARQ information, and / or initializes or re-initializes the uplink transmission resources;

[0366] If no corresponding MAC PDU is generated on all uplink transmission opportunities within a configuration period, the MAC layer sends an uplink skip indication to the upper layer;

[0367] If the upper layer receives the uplink skip indication, the first counter is incremented by 1;

[0368] If the value of the first counter is greater than or equal to the uplink skip count, the terminal behavior includes at least one of the following:

[0369] Terminate the data transmission process based on the configured resources;

[0370] The RRC indicates to the MAC layer to end the data transmission process based on the configured resources;

[0371] Clear the uplink transmission resources and / or the corresponding HARQ information;

[0372] Release the uplink transmission resources;

[0373] Discard the configuration information.

[0374] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described.

[0375] Optionally, it further includes:

[0376] Set the power boost step parameter according to the second power boost step parameter configured by the network side device, the target access identity and / or the target access type provided by the higher layer, and the first indication information sent by the network side device; the power boost step parameter includes a first power boost step parameter and a second power boost step parameter; the first indication information is used to indicate that the terminal uses the second power boost step parameter.

[0377] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described.

[0378] Optionally, it further includes at least one of the following:

[0379] Select a target downlink signal according to the measurement threshold for downlink signal selection;

[0380] Generate an uplink signal according to the selected target downlink signal and / or the association configuration information of the downlink signal and the uplink signal;

[0381] Select a target downlink signal according to the measurement threshold for downlink signal selection;

[0382] Determine a nearest available uplink transmission opportunity according to the selected target downlink signal;

[0383] Determine the uplink grant and the corresponding HARQ information according to the selected uplink transmission opportunity;

[0384] Submit the uplink grant and the corresponding HARQ information to the HARQ entity.

[0385] Optionally, the HARQ entity performs uplink skipping according to a predefined rule and reports an uplink skipping indication to a higher layer.

[0386] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0387] Optionally, if a MAC PDU is obtained, it is indicated that the corresponding HARQ process performs data transmission.

[0388] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0389] Optionally, during the process of transmitting uplink data, at least one of the following is further included:

[0390] Increment a third counter according to a second counter, an indication of a suspend power boost counter, a listen-before-talk LBT failure indication, an uplink skipping indication, and a selected target downlink signal;

[0391] Determine a data transmission power according to the third counter, a power boost step parameter, a downlink path loss estimation, and an expected received power.

[0392] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0393] Optionally, the receiving of downlink data includes:

[0394] After a MAC PDU is transmitted in an uplink transmission opportunity, start or restart a configured grant response timer and / or start or restart a configured grant timer, and monitor the PDCCH;

[0395] The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

[0396] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0397] Optionally, during the operation of the configured grant response timer, the terminal behavior includes at least one of the following:

[0398] If an indication of correct data transmission confirmation is received, stop the configured grant response timer and / or the configured grant timer;

[0399] If an indication of correct data transmission confirmation is received, restart the T319 timer;

[0400] If an indication of correct data transmission confirmation is received, set the first counter value to 0;

[0401] If a PDCCH for scheduling uplink retransmission is received, stop the configured grant response timer and / or restart the configured grant timer;

[0402] If a PDCCH for scheduling uplink new transmission is received, stop the configured grant response timer and / or the configured grant timer;

[0403] If a PDCCH for scheduling downlink transmission is received and the corresponding scheduled MAC PDU is successfully decoded, the terminal behavior includes at least one of the following:

[0404] Stop the configured grant response timer and / or the configured grant timer;

[0405] Disassemble and / or demultiplex the MAC PDU;

[0406] Report the HARQ-ACK indication;

[0407] If a PDCCH for scheduling downlink transmission is received and the corresponding scheduled MAC PDU is not successfully decoded, report the HARQ-NACK indication.

[0408] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0409] Optionally, after the configured grant response timer expires, the terminal behavior includes at least one of the following:

[0410] Increment the second counter by 1;

[0411] If the value of the second counter is equal to the configured grant transmission maximum number threshold plus 1, the terminal behavior includes at least one of the following:

[0412] Report a failure or fallback indication to the upper layer;

[0413] Terminate the data transmission process based on the configured resources;

[0414] Release the uplink transmission resources;

[0415] Discard the configuration information;

[0416] Clear the uplink transmission resources and the corresponding HARQ information.

[0417] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0418] Figure 8 This is the second schematic diagram of the data transmission device provided by the embodiments of the present application. As Figure 8 shown, the embodiments of the present application provide a data transmission device, including a second sending module 801 and a receiving module 802, where:

[0419] The second sending module 801 is used to send the configuration information of data transmission to the terminal, and the configuration information carries the associated configuration information of the reference signal and the uplink transmission resources; the receiving module 802 is used to receive the uplink data sent by the terminal according to the HARQ information and / or the path loss reference signal; the HARQ information and / or the path loss reference signal is determined by the terminal according to the configuration information.

[0420] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0421] Optionally, it further includes a third sending module, which is used to send downlink data to the terminal according to the target downlink signal selected by the terminal.

[0422] Specifically, the above data transmission device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0423] Optionally, sending the downlink data includes:

[0424] After a MAC PDU is transmitted in the uplink transmission opportunity, send a PDCCH;

[0425] The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

[0426] The data transmission device in the embodiments of the present application may be a device, or a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

[0427] The data transmission device in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0428] The data transmission device provided in the embodiments of the present application can implement each process implemented in the above embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0429] Figure 9 It is a schematic diagram of the hardware structure of the terminal provided in the embodiments of the present application. As Figure 9 shown, the terminal 900 includes, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910, etc.

[0430] Those skilled in the art can understand that the terminal 900 may further include a power source (such as a battery) for supplying power to each component. The power source may be logically connected to the processor 910 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 9 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements, which will not be elaborated here.

[0431] It should be understood that in the embodiments of the present application, the input unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042. The graphics processor 9041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. The other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0432] In the embodiments of the present application, after receiving the downlink data from the network-side device, the radio frequency unit 901 sends it to the processor 910 for processing; in addition, it sends the uplink data to the network-side device. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0433] The memory 909 can be used to store software programs or instructions and various data. The memory 909 mainly includes a program or instruction storage area and a data storage area. Among them, the program or instruction storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 may include a high-speed random access memory, and may also include a non-volatile memory. Among them, the non-volatile memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0434] The processor 910 may include one or more processing units; optionally, the processor 910 may integrate an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes the operating system, user interface, applications or instructions, etc., and the modulation and demodulation processor mainly processes wireless communications, such as a baseband processor. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 910.

[0435] Among them, a radio frequency unit 901 is configured to obtain configuration information for data transmission, where the configuration information carries associated configuration information of a downlink signal and uplink transmission resources.

[0436] A processor 910 is configured to select a target downlink signal and determine target uplink transmission resources according to the associated configuration information of the downlink signal and the uplink transmission resources.

[0437] The radio frequency unit 901 is further configured to determine hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resources and / or calculate a downlink path loss estimate, and send uplink data according to the HARQ information and / or the downlink path loss estimate.

[0438] Optionally, the method further includes that the terminal receives downlink data according to the target downlink signal.

[0439] Optionally, the associated configuration information of the downlink signal and the uplink transmission resources includes at least one of the following:

[0440] Associated configuration information of the downlink signal and the uplink transmission opportunity;

[0441] Identifier of the downlink signal;

[0442] First scrambling identifier information of the uplink signal;

[0443] Second scrambling identifier information of the uplink signal;

[0444] Code division multiplexing group information of the uplink signal;

[0445] Antenna port information of the uplink signal.

[0446] Optionally, the configuration information further includes at least one of the following:

[0447] Number of frequency division multiplexing of the uplink transmission opportunity at a moment;

[0448] Resource allocation information of the uplink transmission opportunity in the time domain;

[0449] Resource allocation information of the uplink transmission opportunity in the frequency domain;

[0450] Downlink signal configuration information;

[0451] Duration information of a configured grant response timer;

[0452] Measurement threshold for downlink signal selection;

[0453] First power boost step parameter;

[0454] Second power boost step parameter;

[0455] Maximum number of configured grant transmissions;

[0456] Expected received power;

[0457] Uplink transmission opportunity mask information;

[0458] Configured grant period;

[0459] Duration information of the configured grant timer;

[0460] Maximum uplink skip count;

[0461] The resource allocation information of the uplink transmission opportunity in the time domain includes at least one of the following:

[0462] The number of time slots in each configured grant period;

[0463] The number of uplink transmission opportunities included in each time slot;

[0464] The number of uplink transmission opportunities in each configured grant period;

[0465] The resource allocation information of the uplink transmission opportunity in the frequency domain includes at least one of the following:

[0466] Bandwidth information;

[0467] Start position information of the uplink transmission opportunity in the frequency domain.

[0468] Optionally, determining the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource includes

[0469] Determining the HARQ information corresponding to the target uplink transmission resource according to at least one of the following:

[0470] The total number of HARQ processes that can be used;

[0471] The numbers corresponding to the HARQ processes that can be used;

[0472] The total number of HARQ processes that can be used in each configured grant period;

[0473] The numbers corresponding to the HARQ processes that can be used in each configured grant period;

[0474] The numbers corresponding to the HARQ processes corresponding to the uplink transmission resources in each configured grant period.

[0475] Optionally, calculating the downlink path loss estimate includes:

[0476] Calculating the downlink path loss estimate according to the target downlink signal.

[0477] Optionally, the method further includes at least one of the following:

[0478] If the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within a configured authorization period, the first counter is incremented by 1, and the first counter is used to count the number of data transmission skips;

[0479] If the value of the first counter is greater than or equal to the maximum uplink skip count, or if the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within N consecutive configured periods, the terminal behavior includes at least one of the following:

[0480] Terminate the data transmission process based on the configured resources;

[0481] Release the uplink transmission resources;

[0482] Discard the configuration information.

[0483] Optionally, the method further includes that after the data transmission process based on the configured resources is triggered, the terminal behavior includes at least one of the following:

[0484] The RRC layer indicates to the MAC layer that the data transmission process based on the configured resources is triggered;

[0485] After the MAC layer is indicated by the RRC layer that the data transmission process based on the configured resources is triggered, save the uplink transmission resources and the corresponding HARQ information, and / or initialize or re-initialize the uplink transmission resources;

[0486] If no corresponding MAC PDU is generated on all uplink transmission opportunities within a configured period, the MAC layer sends an uplink skip indication to the upper layer;

[0487] If the upper layer receives the uplink skip indication, the first counter is incremented by 1;

[0488] If the value of the first counter is greater than or equal to the maximum uplink skip count, the terminal behavior includes at least one of the following:

[0489] Terminate the data transmission process based on the configured resources;

[0490] The RRC indicates to the MAC layer to end the data transmission process based on the configured resources;

[0491] Clear the uplink transmission resources and / or the corresponding HARQ information;

[0492] Release the uplink transmission resources;

[0493] Discard the configuration information.

[0494] Optionally, the method further includes:

[0495] Set a power boost step parameter according to a second power boost step parameter configured by a network-side device, a target access identity and / or a target access type provided by a higher layer, and a first indication message sent by the network-side device; the power boost step parameter includes a first power boost step parameter and a second power boost step parameter; the first indication message is used to instruct the terminal to use the second power boost step parameter.

[0496] Optionally, the method further includes at least one of the following:

[0497] Select a target downlink signal according to a measurement threshold for downlink signal selection;

[0498] Generate an uplink signal according to the selected target downlink signal and / or association configuration information of the downlink signal and the uplink signal;

[0499] Determine a nearest available uplink transmission opportunity according to the selected target downlink signal;

[0500] Determine an uplink grant and corresponding HARQ information according to the selected uplink transmission opportunity;

[0501] Deliver the uplink grant and the corresponding HARQ information to a HARQ entity.

[0502] Optionally, the HARQ entity performs uplink skipping according to a predefined rule and reports an uplink skipping indication to a higher layer.

[0503] Optionally, if a MAC PDU is obtained, instruct a corresponding HARQ process to perform data transmission.

[0504] Optionally, during the process of transmitting uplink data, it further includes at least one of the following:

[0505] Increment a third counter by 1 according to a second counter, an indication of a suspended power boost counter, a listen-before-talk LBT failure indication, an uplink skipping indication, and the selected target downlink signal;

[0506] Determine a data transmission power according to the third counter, the power boost step parameter, a downlink path loss estimate, and an expected received power.

[0507] Optionally, the receiving of downlink data includes:

[0508] After a MAC PDU is transmitted in an uplink transmission opportunity, start or restart a configured grant response timer and / or start or restart a configured grant timer, and listen for a PDCCH;

[0509] The modulation reference signal antenna port of the PDCCH has the same quasi-orthogonal characteristic as the target downlink signal.

[0510] Optionally, during the running of the configuration authorization response timer, the terminal behavior includes at least one of the following:

[0511] If an indication of correct data transmission confirmation is received, stop the configuration authorization response timer and / or the configuration authorization timer;

[0512] If an indication of correct data transmission confirmation is received, restart the T319 timer;

[0513] If an indication of correct data transmission confirmation is received, set the first counter value to 0;

[0514] If a PDCCH for scheduling uplink retransmission is received, stop the configuration authorization response timer and / or restart the configuration authorization timer;

[0515] If a PDCCH for scheduling uplink new transmission is received, stop the configuration authorization response timer and / or the configuration authorization timer;

[0516] If a PDCCH for scheduling downlink transmission is received and the corresponding scheduled MAC PDU is successfully decoded, the terminal behavior includes at least one of the following:

[0517] Stop the configuration authorization response timer and / or the configuration authorization timer;

[0518] Disassemble and / or demultiplex the MAC PDU;

[0519] Report the HARQ-ACK indication;

[0520] If a PDCCH for scheduling downlink transmission is received and the corresponding scheduled MAC PDU is not successfully decoded, report the HARQ-NACK indication.

[0521] Optionally, after the configuration authorization response timer expires, the terminal behavior includes at least one of the following:

[0522] Increment the second counter by 1;

[0523] If the value of the second counter is equal to the configuration authorization transmission maximum number threshold plus 1, the terminal behavior includes at least one of the following:

[0524] Report a failure or fallback indication to the upper layer;

[0525] Terminate the data transmission process based on the configured resources;

[0526] Release the uplink transmission resources;

[0527] Discard the configuration information;

[0528] Clear the uplink transmission resources and the corresponding HARQ information.

[0529] Figure 10 This is a schematic diagram of the hardware structure of the network-side device provided by the embodiments of the present application. As Figure 10 shown, the network device 1000 includes: an antenna 1001, a radio frequency device 1002, and a baseband device 1003. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be sent and sends it to the radio frequency device 1002. After processing the received information, the radio frequency device 1002 sends it out through the antenna 1001.

[0530] The above frequency band processing device may be located in the baseband device 1003. The methods performed by the network-side device in the above embodiments may be implemented in the baseband device 1003. The baseband device 1003 includes a processor 1004 and a memory 1005.

[0531] The baseband device 1003 may include, for example, at least one baseband board, and a plurality of chips are arranged on the baseband board. As Figure 10 shown, one of the chips is, for example, a processor 1004, which is connected to the memory 1005 to call the program in the memory 1005 and execute the operations of the network device shown in the above method embodiments.

[0532] The baseband device 1003 may further include a network interface 1006 for interacting with the radio frequency device 1002. This interface is, for example, a common public radio interface (CPRI for short).

[0533] Specifically, the network-side device of the embodiments of the present invention further includes: instructions or programs stored on the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute Figure 8 the methods performed by the modules shown, and achieves the same technical effects. To avoid repetition, they are not described herein again.

[0534] The embodiments of the present application further provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, each process of the above data transmission method embodiments is implemented, and the same technical effects can be achieved. To avoid repetition, they are not described herein again.

[0535] Among them, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disc, etc.

[0536] Another embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement each process of the data transmission method embodiment described above, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0537] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0538] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the methods described can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0539] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions to enable a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0540] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A data transmission method, characterized in that, Including: The terminal obtains configuration information for data transmission. The configuration information carries associated configuration information of a downlink signal and an uplink transmission resource, as well as first reference signal configuration information, where the first reference signal configuration information is used to indicate which downlink signals are used for the small data transmission process; The terminal selects a target downlink signal according to the first reference signal configuration information, and determines a target uplink transmission resource according to the associated configuration information of the downlink signal and the uplink transmission resource; The terminal determines hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource and / or calculates a downlink path loss estimate, and sends uplink data according to the HARQ information and / or the downlink path loss estimate.

2. The data transmission method according to claim 1, wherein The method further includes that the terminal receives downlink data according to the target downlink signal.

3. The data transmission method according to claim 1, wherein The associated configuration information of the downlink signal and the uplink transmission resource includes at least one of the following: Associated configuration information of a downlink signal and an uplink transmission occasion; Identification of the downlink signal; First scrambling identification information of the uplink signal; Second scrambling identification information of the uplink signal; Code division multiplexing group information of the uplink signal; Antenna port information of the uplink signal.

4. The data transmission method according to claim 1, wherein The configuration information further includes at least one of the following: The number of frequency division multiplexing of the uplink transmission occasion at one moment; Resource allocation information of the uplink transmission occasion in the time domain; Resource allocation information of the uplink transmission occasion in the frequency domain; Duration information of the configuration grant response timer; Measurement threshold for downlink signal selection; First power boost step parameter; Second power boost step parameter; Maximum number of configuration grant transmissions; Desired received power; Uplink transmission occasion mask information; Configuration grant period; Duration information of the configuration grant timer; Maximum number of uplink skips; The resource allocation information of the uplink transmission occasion in the time domain includes at least one of the following: The number of time slots in each configuration grant period; The number of uplink transmission occasions included in each time slot; The number of uplink transmission occasions in each configuration grant period; The resource allocation information of the uplink transmission occasion in the frequency domain includes at least one of the following: Bandwidth information; Starting position information of the uplink transmission occasion in the frequency domain.

5. The data transmission method according to claim 1, wherein Determining the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource includes Determining the HARQ information corresponding to the target uplink transmission resource according to at least one of the following: The total number of available HARQ processes; The numbers corresponding to the available HARQ processes; The total number of available HARQ processes in each configuration grant period; The numbers corresponding to the available HARQ processes in each configuration grant period; The numbers corresponding to the HARQ processes corresponding to the uplink transmission resource in each configuration grant period.

6. The data transmission method according to claim 1, wherein Calculating the downlink path loss estimate includes: Calculating the downlink path loss estimate according to the target downlink signal.

7. The data transmission method according to claim 1, wherein The method further includes at least one of the following: If the data transmission process based on the configured resources is not triggered on all uplink transmission occasions within a configuration grant period, the first counter is incremented by 1, and the first counter is used to count the data transmission skip times; If the value of the first counter is greater than or equal to the maximum number of uplink skips, or if the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within N consecutive configuration periods, the terminal behavior includes at least one of the following: Terminate the data transmission process based on the configured resources; Release the uplink transmission resources; Discard the configuration information.

8. The data transmission method according to claim 1, wherein The method further includes that after the data transmission process based on the configured resources is triggered, the terminal behavior includes at least one of the following: The radio resource control (RRC) layer indicates to the media access control (MAC) layer that the data transmission process based on the configured resources is triggered; After the MAC layer is indicated by the RRC layer that the data transmission process based on the configured resources is triggered, save the uplink transmission resources and the corresponding hybrid automatic repeat request (HARQ) information, and / or initialize or re-initialize the uplink transmission resources; If no corresponding media access control protocol data unit (MAC PDU) is generated on all uplink transmission opportunities within a configuration period, the MAC layer sends an uplink skip indication to the higher layer; If the higher layer receives the uplink skip indication, increment the first counter by 1; If the value of the first counter is greater than or equal to the maximum number of uplink skips, the terminal behavior includes at least one of the following: Terminate the data transmission process based on the configured resources; The RRC indicates to the MAC layer to end the data transmission process based on the configured resources; Clear the uplink transmission resources and / or the corresponding HARQ information; Release the uplink transmission resources; Discard the configuration information.

9. The data transmission method according to claim 1, characterized in that, The method further includes: Set the power boost step parameter according to the second power boost step parameter configured by the network side device, the target access identity and / or target access type provided by the higher layer, and the first indication information sent by the network side device; the power boost step parameter includes a first power boost step parameter and a second power boost step parameter; the first indication information is used to indicate that the terminal uses the second power boost step parameter.

10. The data transmission method according to claim 1, wherein The method further includes at least one of the following: Select a target downlink signal according to the measurement threshold for downlink signal selection; Generate an uplink signal according to the selected target downlink signal and / or the association configuration information of the downlink signal and the uplink signal; Determine a nearest available uplink transmission opportunity according to the selected target downlink signal; Determine the uplink grant and the corresponding HARQ information according to the selected uplink transmission opportunity; Deliver the uplink grant and the corresponding HARQ information to the HARQ entity.

11. The data transmission method according to claim 10, wherein The HARQ entity performs an uplink skip according to the predefined rule and reports an uplink skip indication to the higher layer.

12. The data transmission method according to claim 11, wherein If a MAC PDU is obtained, instruct the corresponding HARQ process to send data.

13. The data transmission method according to claim 1, wherein During the process of sending uplink data, it further includes at least one of the following: Increment the third counter by 1 according to the second counter, the indication of the pause power boost counter, the listen-before-talk (LBT) failure indication, the uplink skip indication, and the selected target downlink signal; Determine the data transmission power according to the third counter, the power boost step parameter, the downlink path loss estimation, and the desired received power.

14. The data transmission method according to claim 2, wherein The receiving of the downlink data includes: After a MAC PDU is transmitted in an uplink transmission opportunity, start or restart a configuration grant response timer and / or start or restart a configuration grant timer, and monitor a physical downlink control channel PDCCH; The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

15. The data transmission method according to claim 14, wherein During the operation of the configuration grant response timer, the terminal behavior includes at least one of the following: If an indication that the confirmed data transmission is correct is received, stop the configuration grant response timer and / or the configuration grant timer; If an indication that the confirmed data transmission is correct is received, restart the T319 timer; If an indication that the confirmed data transmission is correct is received, set the first counter value to 0; If a PDCCH for scheduling an uplink retransmission is received, stop the configuration grant response timer and / or restart the configuration grant timer; If a PDCCH for scheduling an uplink new transmission is received, stop the configuration grant response timer and / or the configuration grant timer; If a PDCCH for scheduling a downlink transmission is received and the corresponding scheduled MAC PDU is successfully decoded, the terminal behavior includes at least one of the following: Stop the configuration grant response timer and / or the configuration grant timer; Disassemble and / or demultiplex the MAC PDU; Report a hybrid automatic repeat request acknowledgment HARQ-ACK indication; If a PDCCH for scheduling a downlink transmission is received and the corresponding scheduled MAC PDU is not successfully decoded, report a hybrid automatic repeat request negative acknowledgment HARQ-NACK indication.

16. The data transmission method according to claim 14, wherein After the configuration grant response timer expires, the terminal behavior includes at least one of the following: Increment the second counter by 1; If the value of the second counter is equal to the configuration grant transmission maximum number threshold plus 1, the terminal behavior includes at least one of the following: Report a failure or fallback indication to a higher layer; Terminate the data transmission process based on the configured resources; Release the uplink transmission resources; Discard the configuration information; Clear the uplink transmission resources and the corresponding HARQ information.

17. A data transmission method, characterized in that, Includes: The network side device sends configuration information for data transmission to the terminal, and the configuration information carries the associated configuration information of the reference signal and the uplink transmission resources and the first reference signal configuration information, and the first reference signal configuration information is used to indicate which downlink signals are used for the small data transmission process; The network side device receives the uplink data sent by the terminal according to the hybrid automatic repeat request HARQ information and / or the path loss reference signal; the HARQ information and / or the path loss reference signal is determined by the terminal according to the configuration information.

18. The data transmission method according to claim 17, wherein The method further includes: Send downlink data to the terminal according to the target downlink signal selected by the terminal.

19. The data transmission method according to claim 18, wherein The sending of the downlink data includes: According to a media access control protocol data unit MAC PDU transmitted in an uplink transmission opportunity, send a physical downlink control channel PDCCH; The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

20. A data transmission device, characterized in that, Includes: An acquisition module, configured to acquire configuration information for data transmission, where the configuration information carries associated configuration information of a downlink signal and an uplink transmission resource, and first reference signal configuration information, and the first reference signal configuration information is used to indicate which downlink signals are used for the small data transmission process; A determination module, configured to select a target downlink signal according to the first reference signal configuration information, and determine a target uplink transmission resource according to the associated configuration information of the downlink signal and the uplink transmission resource; A first transmission module, configured to determine hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource and / or calculate a downlink path loss estimate, and transmit uplink data according to the HARQ information and / or the downlink path loss estimate.

21. The data transmission device according to claim 20, wherein It further includes a reception module, configured to receive downlink data according to the target downlink signal.

22. The data transmission device according to claim 20, wherein The associated configuration information of the downlink signal and the uplink transmission resource includes at least one of the following: Associated configuration information of the downlink signal and the uplink transmission occasion; The identifier of the downlink signal; The first scrambling identifier information of the uplink signal; The second scrambling identifier information of the uplink signal; The code division multiplexing group information of the uplink signal; The antenna port information of the uplink signal.

23. The data transmission device according to claim 20, wherein The configuration information further includes at least one of the following: The number of frequency division multiplexing of the uplink transmission occasion at a moment; The resource allocation information of the uplink transmission occasion in the time domain; The resource allocation information of the uplink transmission occasion in the frequency domain; The duration information of the configured grant response timer; The measurement threshold for downlink signal selection; The first power boost step parameter; The second power boost step parameter; The maximum number of configured grant transmissions; The expected received power; The uplink transmission occasion mask information; The configured grant period; The duration information of the configured grant timer; The maximum number of uplink skips; The resource allocation information of the uplink transmission occasion in the time domain includes at least one of the following: The number of time slots in each configured grant period; The number of uplink transmission occasions included in each time slot; The number of uplink transmission occasions in each configured grant period; The resource allocation information of the uplink transmission occasion in the frequency domain includes at least one of the following: The bandwidth information; The starting position information of the uplink transmission occasion in the frequency domain.

24. The data transmission device according to claim 20, wherein Determining the hybrid automatic repeat request (HARQ) information corresponding to the target uplink transmission resource includes Determining the HARQ information corresponding to the target uplink transmission resource according to at least one of the following: The total number of available HARQ processes; The numbers corresponding to the available HARQ processes; The total number of available HARQ processes in each configured grant period; The numbers corresponding to the available HARQ processes in each configured grant period; The numbers corresponding to the HARQ processes corresponding to the uplink transmission resources in each configured grant period.

25. The data transmission device according to claim 20, wherein Calculating the downlink path loss estimate includes: Calculating the downlink path loss estimate according to the target downlink signal.

26. The data transmission device according to claim 20, wherein It further includes at least one of the following: If the data transmission process based on the configured resources is not triggered on all uplink transmission occasions in a configured grant period, the first counter is incremented by 1, and the first counter is used to count the data transmission skip times; If the value of the first counter is greater than or equal to the maximum uplink skip count, or if the data transmission process based on the configured resources is not triggered on all uplink transmission opportunities within N consecutive configuration periods, the terminal behavior includes at least one of the following: Terminate the data transmission process based on the configured resources; Release the uplink transmission resources; Discard the configuration information.

27. The data transmission device according to claim 20, characterized in that, It further includes that after the data transmission process based on the configured resources is triggered, the terminal behavior includes at least one of the following: The radio resource control (RRC) layer indicates to the media access control (MAC) layer that the data transmission process based on the configured resources is triggered; After the MAC layer is indicated by the RRC layer that the data transmission process based on the configured resources is triggered, save the uplink transmission resources and the corresponding hybrid automatic repeat request (HARQ) information, and / or initialize or re-initialize the uplink transmission resources; If no corresponding media access control protocol data unit (MAC PDU) is generated on all uplink transmission opportunities within a configuration period, the MAC layer sends an uplink skip indication to the higher layer; If the higher layer receives the uplink skip indication, increment the first counter by 1; If the value of the first counter is greater than or equal to the maximum uplink skip count, the terminal behavior includes at least one of the following: Terminate the data transmission process based on the configured resources; The RRC indicates to the MAC layer to end the data transmission process based on the configured resources; Clear the uplink transmission resources and / or the corresponding HARQ information; Release the uplink transmission resources; Discard the configuration information.

28. The data transmission device according to claim 20, characterized in that, It further includes: Set the power boost step parameter according to the second power boost step parameter configured by the network side device, the target access identity and / or target access type provided by the higher layer, and the first indication information sent by the network side device; the power boost step parameter includes the first power boost step parameter and the second power boost step parameter; the first indication information is used to indicate that the terminal uses the second power boost step parameter.

29. The data transmission device according to claim 20, wherein It further includes at least one of the following: Select the target downlink signal according to the measurement threshold for downlink signal selection; Generate the uplink signal according to the selected target downlink signal and / or the association configuration information of the downlink signal and the uplink signal; Determine a nearest available uplink transmission opportunity according to the selected target downlink signal; Determine the uplink grant and the corresponding HARQ information according to the selected uplink transmission opportunity; Deliver the uplink grant and the corresponding HARQ information to the HARQ entity.

30. The data transmission device according to claim 29, wherein The HARQ entity performs uplink skipping according to the predefined rules and reports an uplink skip indication to the higher layer.

31. The data transmission device according to claim 30, wherein, If a MAC PDU is obtained, instruct the corresponding HARQ process to perform data transmission.

32. The data transmission device according to claim 20, wherein During the process of sending uplink data, it further includes at least one of the following: Increment the third counter according to the second counter, the indication of the pause power boost counter, the listen-before-talk (LBT) failure indication, the uplink skip indication, and the selected target downlink signal; Determine the data transmission power according to the third counter, the power boost step parameter, the downlink path loss estimation, and the desired received power.

33. The data transmission device according to claim 21, wherein The receiving of the downlink data includes: After a MAC PDU is transmitted in an uplink transmission opportunity, start or restart a configuration grant response timer and / or start or restart a configuration grant timer, and monitor the physical downlink control channel PDCCH; The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

34. The data transmission device according to claim 33, characterized in that, During the operation of the configuration grant response timer, the terminal behavior includes at least one of the following: If an indication that the data transmission is correctly confirmed is received, stop the configuration grant response timer and / or the configuration grant timer; If an indication that the data transmission is correctly confirmed is received, restart the T319 timer; If an indication that the data transmission is correctly confirmed is received, set the first counter value to 0; If a PDCCH for scheduling an uplink retransmission is received, stop the configuration grant response timer and / or restart the configuration grant timer; If a PDCCH for scheduling an uplink new transmission is received, stop the configuration grant response timer and / or the configuration grant timer; If a PDCCH for scheduling a downlink transmission is received and the corresponding scheduled MAC PDU is successfully decoded, the terminal behavior includes at least one of the following: Stop the configuration grant response timer and / or the configuration grant timer; Disassemble and / or demultiplex the MAC PDU; Report a hybrid automatic repeat request acknowledgement HARQ-ACK indication; If a PDCCH for scheduling a downlink transmission is received and the corresponding scheduled MAC PDU is not successfully decoded, report a hybrid automatic repeat request negative acknowledgement HARQ-NACK indication.

35. The data transmission device according to claim 33, wherein After the configuration grant response timer expires, the terminal behavior includes at least one of the following: Increment the second counter by 1; If the value of the second counter is equal to the configuration grant transmission maximum number threshold plus 1, the terminal behavior includes at least one of the following: Report a failure or fallback indication to the upper layer; Terminate the data transmission process based on the configured resources; Release the uplink transmission resources; Discard the configuration information; Clear the uplink transmission resources and the corresponding HARQ information.

36. A data transmission device, characterized in that, Includes: A second sending module, configured to send configuration information for data transmission to a terminal, where the configuration information carries associated configuration information of a reference signal and an uplink transmission resource, and first reference signal configuration information, and the first reference signal configuration information is used to indicate which downlink signals are used for a small data transmission process; A receiving module, configured to receive uplink data sent by the terminal according to hybrid automatic repeat request HARQ information and / or a path loss reference signal; the HARQ information and / or the path loss reference signal are determined by the terminal according to the configuration information.

37. The data transmission device according to claim 36, characterized in that, Further includes a third sending module, configured to send downlink data to the terminal according to a target downlink signal selected by the terminal.

38. The data transmission device according to claim 37, wherein Sending the downlink data includes: After a media access control protocol data unit MAC PDU is transmitted in an uplink transmission opportunity, send a physical downlink control channel PDCCH; The modulation reference signal antenna port of the PDCCH and the target downlink signal have the same quasi-orthogonal characteristics.

39. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the steps of the data transmission method according to any one of claims 1 to 16 are implemented.

40. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the steps of the data transmission method according to any one of claims 17 to 19 are implemented.

41. A readable storage medium, characterized in that, A program or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, the data transmission method according to any one of claims 1 to 16 is implemented, or the steps of the data transmission method according to any one of claims 17 to 19 are implemented.

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