Data transmission method, apparatus and communication device

Abstract

The present disclosure provides a data transmission method, apparatus and communication device, which belong to the technical field of wireless communication, where the method includes: a user equipment (UE) determines a current data transmission stage; and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource for data transmission according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

Description

[Technical field]

[0001] The present disclosure relates to the field of wireless communication technology, and in particular to a data transmission method, apparatus and communication device. [Background technology]

[0002] In a CG SDT (Configure Grant-Small Data Transmission) process, a network side device may configure multiple periodic CG (Configure Grant) resources, and the multiple CG resources may correspond to different HARQ (Hybrid Automatic Repeat Request) processes. However, in one specific SDT process, a problem to be solved is which CG resource a UE (User Equipment) should use to transmit data with the network side device. Summary of the Invention [Problem to be solved by the invention]

[0003] An embodiment of a first aspect of the present disclosure provides a data transmission method applied to a UE, the data transmission method including: determining a current data transmission stage; and using a CG SDT resource in a configuration grant small data transmission (CG SDT) process based on the current data transmission stage.

[0004] The selectable step further includes receiving a CG SDT resource set by a network side device.

[0005] Optionally, the CG SDT resource is configured by a Radio Resource Control Release (RRC Release) message.

[0006] Optionally, the step of using a CG SDT resource in the CG SDT process based on the current data transmission stage includes the steps of determining that the current data transmission stage is an initial data transmission stage, and not transmitting data using other CG SDT resources in response to the UE not receiving feedback information of the network side device after transmitting data using a first CG SDT resource.

[0007] Optionally, the method further includes retransmitting the data using a retransmission CG SDT resource until it is determined that a retransmission condition is met.

[0008] Optionally, the step of using CG SDT resources in a CG SDT process based on the current data transmission stage includes determining that the current data transmission stage is a subsequent data transmission stage, and transmitting using a plurality of CG SDT resources.

[0009] Optionally, the multiple CG SDT resources correspond to the same beam or belong to the same CG SDT resource group.

[0010] Optionally, the plurality of CG SDT resources and the CG SDT resource in the initial data transmission stage correspond to the same beam or belong to the same CG SDT resource group.

[0011] Optionally, the method further includes monitoring control information of the network side device using a specific physical downlink control channel (PDCCH) resource configuration.

[0012] Optionally, the method further includes determining that the current data transmission stage is a subsequent data transmission stage, and monitoring control information of the network side device using a specific PDCCH resource configuration.

[0013] Optionally, the specific PDCCH resource is configured by the network side device.

[0014] Optionally, the specific PDCCH resource includes at least one of a specific resource identifier, a specific time domain resource setting, a specific frequency domain resource setting, and a PDCCH resource that is the same as a PDCCH resource corresponding to feedback information of the network side device received in the initial data transmission step, and a downlink signal associated with the specific PDCCH resource is the same as a downlink signal associated with a CG SDT resource used by the UE in the initial data transmission step.

[0015] An embodiment of a second aspect of the present disclosure is a data transmission method applied to a network side device, comprising: a step of sending a configured CG SDT resource to a UE, and the UE uses the CG SDT resource in a CG SDT process according to a current data transmission stage.

[0016] Optionally, the step of sending the configured CG SDT resource to the UE includes a step of sending a first RRC Release message to the UE, and configuring the CG SDT resource by the first RRC Release message.

[0017] Optionally, the method further includes the step of transmitting a configured specific PDCCH resource to a UE, where the specific PDCCH resource is used for monitoring control information of the network side device.

[0018] Optionally, the step of transmitting the configured specific PDCCH resource to the UE includes a step of transmitting a second RRC Release message to the UE, and configuring the specific PDCCH resource by the second RRC Release message.

[0019] Optionally, sending the configured specific PDCCH resource to the UE comprises sending a system message to the UE, the system message configuring the specific PDCCH resource.

[0020] An embodiment of a third aspect of the present disclosure provides a data transmission device, including: a determination module used for determining a current data transmission stage; and a processing module used for using a CG SDT resource in a configuration grant small data transmission (CG SDT) process based on the current data transmission stage.

[0021] An embodiment of a fourth aspect of the present disclosure provides a data transmission device, including a transmission module used for transmitting a configured CG SDT resource to a UE, where the UE uses the CG SDT resource in a CG SDT process according to a current data transmission stage.

[0022] An embodiment of a fifth aspect of the present disclosure provides a communication device including a transceiver, a memory, and a processor connected to the transceiver and the memory, respectively, and configured to control transmission and reception of radio signals by the transceiver by executing computer-executable commands in the memory, and capable of implementing a data transmission method provided by an embodiment of the first aspect of the present disclosure or a data transmission method provided by an embodiment of the second aspect of the present disclosure.

[0023] An embodiment of a sixth aspect of the present disclosure provides a computer storage medium storing computer-executable instructions which, when executed by a processor, can realize a data transmission method provided by an embodiment of the first aspect of the present disclosure or can realize a data transmission method provided by an embodiment of the second aspect of the present disclosure.

[0024] An embodiment of a seventh aspect of the present disclosure provides a computer program product including a computer program that, when executed by a processor, can realize the data transmission method provided by the embodiment of the first aspect of the present disclosure or the data transmission method provided by the embodiment of the second aspect of the present disclosure.

[0025] The data transmission method, apparatus and communication device provided by the embodiments of the present disclosure allow a UE to determine a current data transmission stage, and use a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process. Effect of the Invention

[0026] Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be apparent from the description, or may be learned through the practice of the disclosure. [Brief description of the drawings]

[0027] The above and / or additional aspects and advantages of the present disclosure will become apparent and will be more readily understood from the following detailed description of the embodiments taken in conjunction with the drawings. [Figure 1] FIG. 1 is a schematic diagram of the SDT process. [Diagram 2] This is a flowchart of CG SDT. [Diagram 3] 4 is a flowchart of a data transmission method provided by an embodiment of the present disclosure. [Figure 4] 4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. [Diagram 5] 4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. [Figure 6]4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. [Figure 7] 4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. [Figure 8] 4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. [Figure 9] 4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. [Figure 10] FIG. 2 is a structural schematic diagram of a data transmission device provided by an embodiment of the present disclosure; [Figure 11] FIG. 2 is a structural schematic diagram of another data transmission device provided by an embodiment of the present disclosure; [Figure 12] FIG. 2 is a block diagram of a UE provided by an embodiment of the present disclosure. [Figure 13] FIG. 2 is a structural schematic diagram of a network side device provided by an embodiment of the present disclosure; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise specified. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0029] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims are intended to include the plural forms unless the context clearly indicates otherwise. The term "and / or" used herein should be understood to include any and all combinations of one or more of the associated listed items.

[0030] In the embodiments of the present disclosure, terms such as first, second, and third may be used to describe various pieces of information, but it should be understood that such information should not be limited to these terms. These terms are used only to distinguish between the same types of information. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the terms "if" and "if" used herein may be interpreted as "when" or "in the case of" or "responsive to determining."

[0031] DETAILED DESCRIPTION OF THE DISCLOSURE

[0023] Below, embodiments of the present disclosure are described in detail, examples of which are illustrated in the drawings, in which like or similar reference numerals refer to like or similar elements throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are intended to illustrate the present disclosure and should not be construed as limiting the present disclosure.

[0032] Before describing specific embodiments of the present disclosure, a general terminology will first be introduced to facilitate understanding.

[0033] 1. SDT (Small Data Transmission) According to the resources configured by the network side device, when the UE is in an IDLE / INACTIVE state, it transmits data directly to the network side device in the following manner: First, Msg3 for the 4-step random access process for initial access (also called 4-step RACH (Random access channel) SDT). Second, MsgA for the 2-step random access process of initial access (also called 2-step RACH SDT). Third, dedicated uplink PUSCH (Physical Uplink Shared Channel) resources (i.e., CG (Configure Grant) resources or PUR (Preallocated Uplink Resources)) configured by the network side device (also called CG SDT).

[0034] As an example, the network side device is illustrated as a 5G base station (abbreviated as gNB) in a 5G network architecture (next generation system), and the SDT process may be as shown in Figure 1. That is, the SDT process may include the following two steps:

[0035] The first phase is the initial data transmission phase (Initial Phase), which is from the trigger of the SDT initial data transmission to the reception of confirmation information for the initial data transmitted from the network side device.

[0036] Wherein the confirmation information is different for different SDT processes; 1) 4-step RACH SDT: The confirmation information is a contention resolution identifier for successful reception of Msg4. 2) 2-step RACH SDT: The confirmation information is the contention resolution identifier of the successfully received MsgB. 3) CG SDT: The confirmation information is a data reception success indication sent from a network side device (for example, the confirmation information may be ACK (Acknowledgement) information indicated by physical layer DCI (Downlink Control Information).

[0037] The second phase is a subsequent data transmission phase, which is from receiving confirmation information for the initial data sent from the network side device to receiving a connection release message sent from the network side device. In this phase, the UE can transmit and receive uplink and downlink data.

[0038] As an example, the network side device is illustrated as a gNB, and the CG SDT flow may be as shown in Figure 2. For a CG SDT resource set by the network side device, the UE transmits data using the CG resource (e.g., resource-1 in Figure 2), and then starts a feedback timer to monitor the feedback information of the network side device. If the UE does not receive a successful reception confirmation transmitted from the network side device during the operation period of the feedback timer (feedbackTimer), the UE retransmits data in the subsequent CG resource (resource-4 in Figure 2).

[0039] In the related art, in the CG SDT process, a network side device may set multiple periodic CG resources, and the multiple CG resources may correspond to different HARQ (Hybrid Automatic Repeat Request) processes. In one specific SDT process, the problem to be solved is whether the multiple CG resources can be used simultaneously, and in which data transmission stage (i.e., initial data transmission stage or subsequent data transmission stage) of the SDT process the multiple CG resources are used. In addition, in the CG-SDT process, the problem to be solved is how the network side device continuously performs dynamic scheduling (i.e., PDCCH (Physical Downlink Control Channel) corresponding to the UE identification formula) data transmission for the UE to improve data transmission efficiency.

[0040] In response to the above problems, the present disclosure provides a data transmission method, apparatus, and communication device.

[0041] 3 is a flowchart of a data transmission method provided by an embodiment of the present disclosure, which may be performed by a UE.

[0042] Here, the UE may be a device that provides voice and / or data communication for a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. In different systems, the name of the UE may also be different. Here, the wireless UE can communicate with one or more CNs (Core Networks) via a RAN (Radio Access Network), and the wireless UE may be, for example, a mobile terminal device such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network.

[0043] By way of example, a UE may be a device such as a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiated Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), etc. A wireless UE may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, and is not limited to the embodiments of the present disclosure.

[0044] As shown in FIG. 3, the data transmission method may include the following steps 101 and 102.

[0045] In step 101, the current data transmission phase is determined.

[0046] In embodiments of the present disclosure, the current data transmission phase may include an initial data transmission phase or a subsequent data transmission phase.

[0047] In step 102, a CG SDT resource is used in a CG SDT process based on a current data transmission stage.

[0048] In the embodiments of the present disclosure, the CG SDT resource is used to transmit data of the SDT process, and the CG SDT resource may be configured by the network side device, that is, the UE may receive the CG SDT resource configured by the network side device.

[0049] Here, the network side device is exemplified by a base station. The base station may include a number of cells serving UEs. According to specific applications, each cell may include a number of TRPs (Transmission Reception Points or Transmit Receive Points), and each TRP may include one or more antenna panels, or may be a device that communicates with a wireless terminal device through one or more sectors over an air interface in an access network, or may be other names. For example, the base station according to the embodiment of the present disclosure may be a BTS (Base Transceiver Station) in GSM (Global System for Mobile communications) or CDMA (Code Division Multiple Access), a base station (Node B) in WCDMA (Wide-band Code Division Multiple Access), an evolutional Node B (abbreviated as eNB or e-NodeB) in an LTE (long term evolution) system, a 5G base station (abbreviated as gNB) in a 5G network architecture (next generation system), a HeNB (Home evolved Node B), a relay node, a home base station (femto), a pico base station (pico), or the like, and is not limited to the embodiment of the present disclosure.

[0050] In the embodiment of the present disclosure, the UE can use the CG SDT resource in the CG SDT process according to the current data transmission stage, so that the UE can use the appropriate CG SDT resource to transmit data according to the current data transmission stage, and can improve the data transmission efficiency of the UE, thereby allowing the UE to transmit more data in the SDT process.

[0051] The data transmission method of the embodiment of the present disclosure determines a current data transmission stage by a UE, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0052] An embodiment of the present disclosure provides another data transmission method, and Fig. 4 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. The data transmission method may be performed by a UE. The data transmission method may be performed independently, or may be performed according to any one of the embodiments or possible implementations of the embodiments in the present disclosure, or may be performed according to any technical solution in the related art.

[0053] As shown in FIG. 4, the data transmission method may include the following steps 201 and 202.

[0054] In step 201, it is determined that the current data transmission phase is an initial data transmission phase.

[0055] In an embodiment of the present disclosure, the UE can determine a current data transmission stage, and can trigger the execution of a subsequent step if the current data transmission stage is an initial data transmission stage.

[0056] In step 202, after the UE uses a first CG SDT resource to transmit data, in response to not receiving feedback information from the network side device, it does not use other CG SDT resources to transmit data.

[0057] In the embodiment of the present disclosure, the first CG SDT resource and the other CG SDT resources may be CG SDT resources configured by a network side device.

[0058] In one possible implementation, the network side device may configure the CG SDT resource to the UE through an RRC (Radio Resource Control) Release message, so that the UE can receive the RRC Release message sent from the network side device and determine the CG SDT resource configured by the network side device according to the RRC Release message.

[0059] In the embodiment of the present disclosure, the first CG SDT resource is the CG SDT resource used when the UE triggers the transmission of CG SDT data.

[0060] In the embodiment of the present disclosure, in the initial data transmission stage, after the UE uses the first CG SDT resource to transmit data, if the UE does not receive the feedback information of the network side device, the UE does not use other CG SDT resources to transmit data. That is, in the initial data transmission stage, after the UE triggers data transmission, before receiving the feedback information of the network side device, the UE does not use other CG SDT resources to transmit data.

[0061] As an example, the first CG SDT resource is a CG SDT resource corresponding to one HARQ process among the CG SDT resources corresponding to a plurality of HARQ processes in the CG SDT resource. For example, the CG SDT resource configured by the network side device to the UE corresponds to a plurality of HARQ processes, and in the initial data transmission stage, the UE selects one of the HARQ processes to transmit data, and then the UE does not use other HARQ processes to transmit data in the initial data transmission stage.

[0062] As an example, as shown in FIG. 2, after the UE triggers data transmission of the CG SDT (the data transmission may be the first transmission of resource-1, or the data transmission may be the retransmission of resource-4), the UE may start a feedback timer to monitor the feedback information of the network side device, and before the UE receives the feedback information of the network side device, the UE cannot transmit data using other CG SDT resources, for example, the UE cannot transmit data using resource-2 or resource-3. In this way, it is possible to avoid a situation in which the network side device fails to receive the subsequent data because the subsequent data transmission does not have an identifier to authenticate the UE when the first data transmission is unsuccessful.

[0063] The data transmission method of the embodiment of the present disclosure determines a current data transmission stage by a UE, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0064] It should be noted that the above-mentioned implementation forms may be implemented alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0065] An embodiment of the present disclosure provides another data transmission method, and FIG. 5 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. The data transmission method may be performed by a UE. The data transmission method may be performed independently, or may be performed according to any one of the embodiments or possible implementations of the embodiments in the present disclosure, or may be performed according to any technical solution in the related art.

[0066] As shown in FIG. 5, the data transmission method may include the following steps 301 to 303.

[0067] In step 301, it is determined that the current data transmission phase is an initial data transmission phase.

[0068] In step 302, after the UE uses a first CG SDT resource to transmit data, in response to not receiving feedback information from the network side device, the UE does not use other CG SDT resources to transmit data.

[0069] In the embodiment of the present disclosure, step 301 and step 302 may be implemented in any one of the forms of each embodiment of the present disclosure, and the embodiment of the present disclosure is not limited thereto, and the description thereof will be omitted.

[0070] In step 303, the data is retransmitted using a retransmission CG SDT resource until it is determined that a retransmission condition is met.

[0071] As an example, after the UE transmits data using the first CG SDT resource, the UE may start a feedback timer (e.g., feedbackTimer) to monitor the feedback information of the network side device. If the UE does not receive feedback information (e.g., successful reception confirmation information) transmitted from the network side device during the operation period of the feedback timer, the UE may determine that the retransmission condition is met and may retransmit the data using the retransmission CG SDT resource.

[0072] For example, the first CG SDT resource may be resource-1 in FIG. 2, and the retransmission resource may be resource-4 in FIG. 2. After the UE transmits data using resource-1, the UE may start a feedback timer to monitor feedback information of the network side device. If the UE does not receive feedback information (e.g., successful reception confirmation information) from the network side device during the operation period of the feedback timer, the UE can retransmit data in the subsequent CG SDT resource (i.e., resource-4).

[0073] The data transmission method of the embodiment of the present disclosure determines a current data transmission stage by a UE, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0074] It should be noted that the above-mentioned possible implementation forms may be implemented alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0075] An embodiment of the present disclosure provides another data transmission method, and Fig. 6 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. The data transmission method may be performed by a UE. The data transmission method may be performed independently, or may be performed according to any one of the embodiments or possible implementations of the embodiments in the present disclosure, and may also be performed according to any technical solution in the related art.

[0076] As shown in FIG. 6, the data transmission method may include the following steps 401 and 402.

[0077] In step 401, it is determined that the current data transmission phase is a subsequent data transmission phase.

[0078] In an embodiment of the present disclosure, the UE may determine a current data transmission stage, and may trigger the execution of a subsequent step if the current data transmission stage is a subsequent data transmission stage.

[0079] In step 402, multiple CG SDT resources are used for transmission.

[0080] In an embodiment of the present disclosure, in a subsequent data transmission stage, the UE may transmit using multiple CG SDT resources, for example, the UE may transmit using multiple consecutive CG SDT resources, or the UE may transmit using multiple consecutive CG SDT resources.

[0081] For example, the CG SDT resource configured in the UE by the network side device may correspond to multiple HARQ processes, and in a subsequent data transmission stage, the UE may use the multiple HARQ processes to transmit data.

[0082] In one possible implementation of the embodiment of the present disclosure, the multiple CG SDT resources may correspond to the same beam, or the consecutive multiple CG SDT resources may correspond to the same beam.

[0083] In another possible implementation of the embodiment of the present disclosure, the above-mentioned multiple CG SDT resources may belong to the same CG SDT resource group, or the above-mentioned consecutive multiple CG SDT resources may belong to the same CG SDT resource group.

[0084] As an example, the above-mentioned multiple CG SDT resources or the above-mentioned consecutive multiple CG SDT resources may be associated with the same downlink signal. For example, the network side device configures multiple sets of CG SDT resources for the UE, and the multiple sets of CG SDT resources correspond to different downlink signals (for example, SSB (Synchronous Signal Block)), or in one CG SDT resource transmission period, there are multiple CG SDT resources (for example, multiple CG SDT resources correspond to CG SDT resource-1, CG SDT resource-2, CG SDT resource-3, CG SDT resource-4), and these multiple CG resources correspond to different downlink signals (for example, CG SDT resource-1 corresponds to SSB-1, CG SDT resource-2 corresponds to SSB-2, CG SDT resource-3 corresponds to SSB-3, and CG SDT resource-4 corresponds to SSB-4), so that the downlink signals associated with the CG SDT resources used by the UE in multiple resource transmission periods of the "subsequent data transmission stage" are the same.

[0085] In another possible implementation of the embodiment of the present disclosure, the multiple CG SDT resources may correspond to the same beam as the CG SDT resource in the initial data transmission phase, or the consecutive multiple CG SDT resources may correspond to the same beam as the CG SDT resource in the initial data transmission phase.

[0086] In another possible implementation of the embodiment of the present disclosure, the above-mentioned multiple CG SDT resources may belong to the same CG SDT resource group as the CG SDT resource in the initial data transmission phase, or the above-mentioned consecutive multiple CG SDT resources may belong to the same CG SDT resource group as the CG SDT resource in the initial data transmission phase.

[0087] As an example, the downlink signal associated with the above-mentioned multiple CG SDT resources or the above-mentioned continuous multiple CG SDT resources may be the same as the downlink signal associated with the CG SDT resource used by the UE in the "initial data transmission stage". For example, the network side device configures multiple sets of CG SDT resources in the UE, and the multiple sets of CG SDT resources correspond to different downlink signals (for example, SSB), or in one CG SDT resource transmission period, there are multiple CG SDT resources (for example, multiple CG SDT resources correspond to CG SDT resource-1, CG SDT resource-2, CG SDT resource-3, CG SDT resource-4), and the multiple CG resources correspond to different downlink signals (for example, CG SDT resource-1 corresponds to SSB-1, CG SDT resource-2 corresponds to SSB-2, CG SDT resource-3 corresponds to SSB-3, and CG SDT resource-4 corresponds to SSB-4). If in the "initial data transmission phase" the UE transmits data using CG SDT resource-1 associated with SSB-1, then in the "subsequent data transmission phase" the UE also transmits data using the CG SDT resource associated with SSB-1.

[0088] The data transmission method of the embodiment of the present disclosure determines a current data transmission stage by a UE, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0089] It should be noted that the above-mentioned implementation forms may be implemented alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0090] An embodiment of the present disclosure provides another data transmission method, and FIG. 7 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. The data transmission method may be performed by a UE. The data transmission method may be performed independently, or may be performed according to any one of the embodiments or possible implementations of the embodiments in the present disclosure, or may be performed according to any technical solution in the related art.

[0091] As shown in FIG. 7, the data transmission method may include steps 501 to 503.

[0092] In step 501, the current data transmission phase is determined.

[0093] In step 502, a CG SDT resource is used in a CG SDT process based on a current data transmission stage.

[0094] In the embodiments of the present disclosure, step 501 and step 502 may be implemented in any one of the forms of the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited thereto, and the description thereof will be omitted.

[0095] In step 503, a specific PDCCH resource configuration is used to monitor control information of a network side device.

[0096] In an embodiment of the present disclosure, the specific PDCCH resource may be configured by a network side device.

[0097] In one possible implementation, the network side device may configure the specific PDCCH resource through an RRC Release message.

[0098] In another embodiment, the network side device may configure the specific PDCCH resource through a system message.

[0099] In the embodiment of the present disclosure, in both the initial data transmission phase and the subsequent data transmission phase, the UE may monitor the control information of the network side device using a specific PDCCH resource configuration.

[0100] As an example, in a current data transmission stage (the current data transmission stage may be an initial data transmission stage or a subsequent data transmission stage), the UE may use the above-mentioned specific PDCCH resource setting to monitor control information of a network side device, and the control information is used to schedule subsequent data reception and transmission.

[0101] The data transmission method of the embodiment of the present disclosure determines a current data transmission stage by a UE, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0102] It should be noted that the above-mentioned implementation forms may be implemented alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0103] In any one embodiment of the present disclosure, the specific PDCCH resource includes at least one of the following aspects.

[0104] The first aspect is a specific resource identifier, For example, the network side device sets a C-RNTI (Cell Radio Network Temporary Identifier) ​​to the specific PDCCH resource through an RC Release message, where the C-RNTI is a specific resource identifier or a PDCCH resource identifier, and thus the UE can set the PDCCH resource corresponding to the C-RNTI identifier as a specific PDCCH resource, so that the UE can use the specific PDCCH resource to monitor control information of the network side device.

[0105] A second aspect is a specific time domain resource configuration; For example, the particular time domain resource configuration may be a particular search space configuration.

[0106] A third aspect is a specific frequency domain resource configuration; For example, the specific frequency domain resource configuration may be a specific CORESET (Control Resource Set) configuration.

[0107] A fourth aspect is a PDCCH resource that is the same as the PDCCH resource corresponding to the feedback information of the network side device received in the initial data transmission step; That is, the specific PDCCH resource may be the same as the PDCCH resource corresponding to the feedback information of the network side device received by the UE in the "initial data transmission stage".

[0108] In a fifth aspect, the downlink signal associated with a particular PDCCH resource is the same as the downlink signal associated with the CG SDT resource used by the UE in the initial data transmission phase.

[0109] For example, the spatial relationship signal corresponding to a particular PDCCH resource is the same as the downlink signal associated with the CG SDT resource used by the UE during the "initial data transmission phase", where the spatial relationship signal may be, for example, a signal corresponding to a TCI (Transmission Configuration Indication) state.

[0110] In any one of the embodiments of the present disclosure, the identifier of the "downlink signal" includes at least one of an SSB identifier and a CSI-RS (Channel State Information-Reference Signal) identifier.

[0111] An embodiment of the present disclosure provides another data transmission method, and FIG. 8 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. The data transmission method may be performed by a UE. The data transmission method may be performed independently, or may be performed according to any one of the embodiments or possible implementations of the embodiments in the present disclosure, or may be performed according to any technical solution in the related art.

[0112] As shown in FIG. 8, the data transmission method may include steps 601 to 604.

[0113] In step 601, the current data transmission phase is determined.

[0114] In step 602, a CG SDT resource is used in a CG SDT process based on a current data transmission stage.

[0115] In the embodiment of the present disclosure, step 601 and step 602 may be implemented in any one of the forms of each embodiment of the present disclosure, and the embodiment of the present disclosure is not limited thereto, and the description thereof will be omitted.

[0116] In step 603, it is determined that the current data transmission phase is a subsequent data transmission phase.

[0117] In step 604, the control information of the network side device is monitored using a specific PDCCH resource configuration.

[0118] Note that the description of the specific PDCCH resources in the above-mentioned embodiment also applies to this embodiment, and the description thereof will be omitted here.

[0119] In an embodiment of the present disclosure, the UE may monitor control information of a network side device using a specific PDCCH resource configuration in a subsequent data transmission stage.

[0120] As an example, if the current data transmission stage is a subsequent data transmission stage, the UE may use the above-mentioned specific PDCCH resource configuration to monitor control information of a network side device, and the control information is used to schedule reception and transmission of subsequent data.

[0121] The data transmission method of the embodiment of the present disclosure determines a current data transmission stage by a UE, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0122] It should be noted that the above-mentioned implementation forms may be implemented alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0123] In one embodiment of the present disclosure, the scheduling form and dynamic scheduling form of the CG SDT resources of the CG SDT may be controlled in the form of protocol conventions or network side device settings, that is, the UE may distinguish different data transmission stages according to the network side device settings or protocol conventions, and use the CG SDT resources and / or dynamic scheduling resources of the CG SDT process.

[0124] In one embodiment of the present disclosure, the network side device may configure the UE with a specific PDCCH resource to be used by the UE in the "subsequent data transmission stage" of the CG SDT process.

[0125] In an embodiment of the present disclosure, a network side device may configure a CG SDT resource for a UE, for example, the network side device may configure a CG SDT resource for a UE through an RRC Release message, and the CG SDT resource is used for data transmission of an SDT process.

[0126] In one embodiment of the present disclosure, the UE may trigger the SDT process and select the CG SDT process to perform data transmission.

[0127] In one embodiment of the present disclosure, according to the configuration of a network side device or the protocol rules, the UE may transmit and receive data according to any of the following rules.

[0128] Rule 1: In the "initial data transmission phase", after the UE triggers data transmission, before receiving feedback information from the network side device, the UE cannot transmit data using other CG SDT resources.

[0129] As an example, the CG SDT resource configured in the UE by the network side device corresponds to multiple HARQ processes, and in the initial data transmission stage, the UE selects one of the HARQ processes to transmit data, and then the UE does not transmit data using other HARQ processes in the initial data transmission stage.

[0130] As shown in Figure 2, the UE triggers CG SDT data transmission, which may be the first transmission of resource-1 or the retransmission of resource-4, and the UE starts a feedback timer to monitor the feedback information of the network side device. Before the UE receives the feedback information of the network side device, the UE cannot use other CG SDT resources, for example, the UE cannot use resource-2 or resource-3 to transmit data, so as to avoid the situation that the subsequent data transmission does not have an identifier to authenticate the UE when the first data transmission is unsuccessful, resulting in failure to receive the subsequent data.

[0131] Rule 2: In the "subsequent data transmission phase", the UE may use multiple CG SDT resources consecutively, or the UE may use multiple consecutive CG SDT resources.

[0132] For example, the CG SDT resource configured in the UE by the network side device may correspond to multiple HARQ processes, and in a subsequent data transmission stage, the UE may use the multiple HARQ processes to transmit data.

[0133] Rule 3: In the "subsequent data transmission phase", the UE monitors the control information of the network side device using a specific PDCCH resource configuration.

[0134] For example, the network side device may pre-configure a specific PDCCH resource for the UE via an RRC Release message or a system message, and when the UE enters a "subsequent data transmission phase", the UE may use the specific PDCCH resource configuration to monitor control information of the network side device, and the control information may be used to schedule the reception and transmission of subsequent data.

[0135] This enables the UE to continuously transmit uplink and / or downlink data in the appropriate "data transmission phase" in the CG SDT process using CG SDT resources and / or dynamically scheduled resources (e.g., specific PDCCH resources), thereby supporting the UE to transmit more data in the SDT process.

[0136] An embodiment of the present disclosure provides another data transmission method, and FIG. 9 is a flowchart of another data transmission method provided by an embodiment of the present disclosure. The data transmission method may be performed by a network-side device. The data transmission method may be performed independently, or may be performed according to any one of the embodiments or possible implementation forms of the embodiments in the present disclosure, and may also be performed according to any technical solution in the related art.

[0137] As shown in FIG. 9, the data transmission method may include the following step 701.

[0138] In step 701, the configured CG SDT resource is sent to the UE, where the UE uses the CG SDT resource in the CG SDT process according to the current data transmission stage.

[0139] Optionally, in one possible implementation form of the embodiment of the present disclosure, the network side device may send a first RRC Release message to the UE, where the first RRC Release message configures a CG SDT resource.

[0140] Optionally, in one possible implementation form of the embodiment of the present disclosure, the network side device may send a configured specific PDCCH resource to the UE, where the specific PDCCH resource is used to monitor control information of the network side device.

[0141] Optionally, in one possible implementation form of the embodiment of the present disclosure, the network side device may send a second RRC Release message to the UE, where the second RRC Release message configures a specific PDCCH resource.

[0142] Optionally, in one possible implementation of the embodiment of the present disclosure, the network side device may send a system message to the UE, where the system message configures a specific PDCCH resource.

[0143] In addition, the interpretation and explanation of the method performed by the UE in any one of the embodiments of Figures 3 to 8 described above also applies to the method performed by the network side device in the embodiment, and the implementation principles are similar, so the explanation is omitted here.

[0144] The data transmission method of the embodiment of the present disclosure sends the configured CG SDT resource to the UE by the network side device, where the UE uses the CG SDT resource in the CG SDT process according to the current data transmission stage, so that the UE can use the appropriate CG SDT resource to transmit data according to the current data transmission stage, and can improve the data transmission efficiency of the UE, so that the UE can transmit more data in the SDT process.

[0145] It should be noted that the above-mentioned implementation forms may be implemented alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0146] Corresponding to the data transmission method provided by the embodiments of Figures 3 to 8 above, the present disclosure further provides a data transmission device, and the data transmission device provided by the embodiments of the present disclosure corresponds to the data transmission method provided by the embodiments of Figures 3 to 8 above, and therefore the embodiments of the data transmission method are also applicable to the data transmission device provided by the embodiments of the present disclosure and will not be described in detail in the embodiments of the present disclosure.

[0147] 10 is a structural schematic diagram of a data transmission device provided by an embodiment of the present disclosure, the device being applicable to a UE.

[0148] As shown in FIG. 10, the data transmission device 1000 includes: A determination module 1001 used for determining a current data transmission stage; and a processing module 1002 used for using CG SDT resources in a configuration grant small data transmission CG SDT process based on a current data transmission stage.

[0149] Optionally, the data transmission device 1000 may The device may further include a receiving module for receiving a CG SDT resource set by a network side device.

[0150] Optionally, the CG SDT resource is configured by a Radio Resource Control Release (RRC Release) message.

[0151] Optionally, the processing module 1002 is specifically used for determining that the current data transmission stage is an initial data transmission stage, and not transmitting data using other CG SDT resources in response to the UE not receiving feedback information from the network side device after transmitting data using the first CG SDT resource.

[0152] Optionally, the processing module 1002 is further adapted to retransmit the data using a retransmission CG SDT resource until it is determined that a retransmission condition is met.

[0153] Optionally, the processing module 1002 is specifically used to determine that the current data transmission stage is a subsequent data transmission stage, and transmit using multiple CG SDT resources.

[0154] Optionally, multiple CG SDT resources correspond to the same beam or belong to the same CG SDT resource group.

[0155] Optionally, the multiple CG SDT resources correspond to the same beam or belong to the same CG SDT resource group as the CG SDT resource in the initial data transmission phase.

[0156] Optionally, the processing module 1002 is further used for monitoring control information of a network side device using a specific physical downlink control channel PDCCH resource configuration.

[0157] Optionally, the processing module 1002 is further used for determining that the current data transmission stage is a subsequent data transmission stage, and monitoring control information of a network side device using a specific PDCCH resource configuration.

[0158] Optionally, the specific PDCCH resource is configured by the network side device.

[0159] Optionally, the specific PDCCH resource includes at least one of a specific resource identifier, a specific time domain resource setting, a specific frequency domain resource setting, and a PDCCH resource that is the same as a PDCCH resource corresponding to feedback information of the network side device received in the initial data transmission phase, and the downlink signal associated with the specific PDCCH resource is the same as a downlink signal associated with the CG SDT resource used by the UE in the initial data transmission phase.

[0160] The data transmission device of the embodiment of the present disclosure determines a current data transmission stage by the UE, and uses a CG SDT resource in the CG SDT process according to the current data transmission stage, so that the UE can use an appropriate CG SDT resource to transmit data according to the current data transmission stage, thereby improving the data transmission efficiency of the UE, and allowing the UE to transmit more data in the SDT process.

[0161] Corresponding to the data transmission method provided by the embodiment of Figure 9 above, the present disclosure further provides a data transmission device, and the data transmission device provided by the embodiment of the present disclosure corresponds to the data transmission method provided by the embodiment of Figure 9 above. Therefore, the embodiments of the data transmission method are also applicable to the data transmission device provided by the embodiment of the present disclosure, and will not be described in detail in the embodiments of the present disclosure.

[0162] 11 is a structural schematic diagram of another data transmission device provided by an embodiment of the present disclosure, which can be applied to a network-side device.

[0163] As shown in FIG. 11, the data transmission device 1100 includes: A sending module 1101 used for sending a configured CG SDT resource to a UE, where the UE may include a sending module 1101 that uses the CG SDT resource in a CG SDT process in a current data transmission stage.

[0164] Optionally, the sending module 1101 is specifically used for sending a first RRC Release message to the UE, where the first RRC Release message configures the CG SDT resource.

[0165] Optionally, the sending module 1101 is further used for sending a configured specific PDCCH resource to the UE, where the specific PDCCH resource is used for monitoring control information of a network side device.

[0166] Optionally, the sending module 1101 is specifically used for sending a second RRC Release message to the UE, where the second RRC Release message configures a specific PDCCH resource.

[0167] Optionally, the sending module 1101 is specifically used for sending a system message to a UE, where the system message configures a specific PDCCH resource.

[0168] The data transmission device of the embodiment of the present disclosure sends the configured CG SDT resource to the UE by the network side device, where the UE uses the CG SDT resource in the CG SDT process according to the current data transmission stage, so that the UE can use the appropriate CG SDT resource to transmit data according to the current data transmission stage, improve the data transmission efficiency of the UE, and allow the UE to transmit more data in the SDT process.

[0169] The present disclosure further provides a communication device for implementing the above embodiments.

[0170] A communication device provided by an embodiment of the present disclosure includes a processor, a transceiver, a memory, and an executable program stored in the memory and executable by the processor, where the processor, when executing the executable program, performs the above-mentioned method.

[0171] The communication device may be the aforementioned UE or a network side device.

[0172] Here, the processor may include various types of storage media, which may be non-transitory computer storage media and may continue to store information stored therein even after the communication device is powered off, where the communication device may include a UE or a network side device.

[0173] The processor can be connected to a memory via a bus or the like, and is used to read an executable program stored in the memory, for example, as shown in at least one of FIGS.

[0174] The present disclosure further provides a computer storage medium for implementing the above embodiments.

[0175] A computer storage medium provided by an embodiment of the present disclosure stores an executable program, which, when executed by a processor, can realize a method of any one of the embodiments described above, such as at least one of Figures 3 to 9.

[0176] 12 is a block diagram of a UE 1200 provided by an embodiment of the present disclosure. For example, the UE 1200 may be a mobile phone, a computer, a digital broadcast user equipment, an information transmitting and receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0177] As shown in FIG. 12, the UE 1200 may include at least one of a processing component 1202, a memory 1204, a power component 1206, a multimedia component 1208, an audio component 1210, an input / output (I / O) interface 1212, a sensor component 1214, and a communication component 1216.

[0178] The processing component 1202 generally controls the overall operation of the UE 1200, such as operations related to display, calls, data communication, camera operation, and recording operation. The processing component 1202 may include at least one processor 1220 to execute commands to complete all or some of the steps of the methods described above. The processing component 1202 may also include at least one module to facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 may include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.

[0179] The memory 1204 is configured to store various types of data to support operation at the UE 1200. Examples of such data include commands for application programs or methods to be operated on the UE 1200, contact data, phone book data, messages, pictures, videos, etc. The memory 1204 may be implemented by any type of volatile or non-volatile storage device, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk, or a combination thereof.

[0180] The power component 1206 provides power to the various components of the UE 1200. The power component 1206 may include a power management system, at least one power source, and other components associated with generating, managing, and allocating power for the UE 1200.

[0181] The multimedia component 1208 includes a screen that provides an output interface between the UE 1200 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen for receiving input signals from a user. The touch panel includes at least one touch sensor for sensing touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide operation, but also detect wake-up time and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes one front camera and / or a rear camera. When the UE 1200 is in an operation mode, such as a photography mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and / or the rear camera may have a fixed optical lens system or a focal length and optical zoom function.

[0182] The audio component 1210 is configured to output and / or input audio signals. For example, the audio component 1210 includes one (MIC), which is configured to receive external audio signals when the UE 1200 is in an operation mode, such as a call mode, a storage mode, and a voice recognition mode. The received audio signals may be further stored in the memory 1204 or transmitted via the communication component 1216. In some embodiments, the audio component 1210 further includes one speaker for outputting audio signals.

[0183] The I / O interface 1212 provides an interface between the processing component 1202 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0184] The sensor component 1214 includes at least one sensor for providing various aspects of status assessment to the UE 1200. For example, the sensor component 1214 can detect the on / off state of the UE 1200, the relative positioning of components, such as the display and miniature keyboard of the UE 1200, the position change of the UE 1200 or one of the components of the UE 1200, the presence or absence of contact between the user and the UE 1200, the orientation or acceleration / deceleration of the UE 1200, and the temperature change of the UE 1200. The sensor component 1214 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 1214 may further include an optical sensor, such as a CMOS or CCD image sensor, used in imaging applications. In some embodiments, the sensor component 1214 may further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0185] The communication component 1216 is configured to facilitate wired or wireless communication between the UE 1200 and other devices. The UE 1200 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1216 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 1216 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology, or other technologies.

[0186] In an exemplary embodiment, UE 1200 may be implemented by at least one application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic element and may be used to perform the methods shown in any of Figures 3 to 8 above.

[0187] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions is further provided, such as a memory 1204 containing instructions, and the above-mentioned commands can be executed by the processor 1220 of the UE 1200 to complete the method shown in any of the above Figures 3 to 8. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0188] FIG. 13 shows a structural schematic diagram of a network-side device provided by an embodiment of the present disclosure. Referring to FIG. 13, the network-side device 1300 includes a processing component 1322 further including one or more processors, and a memory resource represented by a memory 1332 used to store commands executable by the processing component 1322, such as an application program. The application program stored in the memory 1332 may include one or more modules, each corresponding to a set of commands. And the processing component 1322 is configured to execute the commands to perform any method applied to the network-side device of the above methods, such as the method shown in FIG. 9.

[0189] Network-side device 1300 may further include a power component 1326 configured to perform power management of network-side device 1300, a wired or wireless network interface 1350 configured to connect network-side device 1300 to a network, and an input / output (I / O) interface 1358. Network-side device 1300 may run an operating system stored in memory 1332, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™.

[0190] Those skilled in the art may easily conceive other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present invention. These variations, uses, or adaptations follow the general principles of the present disclosure and include common knowledge or commonly used technical means in the art that are not disclosed in the present disclosure. It is intended that the specification and examples are only exemplary, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0191] It should be understood that the present disclosure is not limited to the exact construction described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof, which is limited only by the appended claims.

Claims

1. A data transmission method applied to a user equipment (UE), comprising: determining a current data transmission phase; using a configuration grant small data transmission (CG SDT) resource in a CG SDT process based on the current data transmission phase; The step of using a CG SDT resource in a CG SDT process based on the current data transmission stage includes: In response to not receiving feedback information of a network side device after the UE transmits data using a first CG SDT resource, the UE does not transmit data using another CG SDT resource, where the current data transmission stage is an initial data transmission stage.

2. A data transmission method comprising:

2. The method further includes receiving a CG SDT resource set by a network side device; 2. The method of claim 1 .

3. The CG SDT resource is configured by a Radio Resource Control Release (RRC Release) message; 3. The method of claim 2 .

4. and if it is determined that a retransmission condition is met, retransmitting the data using a retransmission CG SDT resource.

2. The method of claim 1 .

5. The step of using a CG SDT resource in a CG SDT process based on the current data transmission stage includes: determining that the current data transmission phase is a subsequent data transmission phase; and transmitting using a plurality of CG SDT resources.

2. The method of claim 1 .

6. The plurality of CG SDT resources correspond to the same beam or belong to the same CG SDT resource group; 6. The method of claim 5 .

7. The plurality of CG SDT resources and the CG SDT resource in the initial data transmission phase correspond to the same beam or belong to the same CG SDT resource group; 6. The method of claim 5 .

8. The method further includes monitoring control information of the network side device using a specific physical downlink control channel (PDCCH) resource configuration.

2. The method of claim 1 .

9. determining that the current data transmission phase is a subsequent data transmission phase; and monitoring control information of the network side device using a specific PDCCH resource configuration.

2. The method of claim 1 .

10. The specific PDCCH resource is configured by the network side device; 10. The method according to claim 8 or 9.

11. The specific PDCCH resource is A specific resource identifier, Specific time domain resource configuration, A specific frequency domain resource configuration, and At least one of the PDCCH resources is the same as the PDCCH resource corresponding to the feedback information of the network side device received in the initial data transmission step; The downlink signal associated with the specific PDCCH resource is the same as the downlink signal associated with the CG SDT resource used by the UE in the initial data transmission phase.

10. The method according to claim 8 or 9.

12. A data transmission method applied to a network-side device, comprising: Sending the configured CG SDT resource to the UE; The configured CG SDT resource is used by the UE to use the CG SDT resource in a CG SDT process based on a current data transmission stage; Using a CG SDT resource in a CG SDT process based on the current data transmission stage includes: In response to not receiving feedback information of the network side device after the UE transmits data using a first CG SDT resource, the UE does not transmit data using another CG SDT resource, and the current data transmission stage is an initial data transmission stage.

2. A data transmission method comprising:

13. The configured CG SDT resource is further used to retransmit the data using a retransmission CG SDT resource when the UE determines that a retransmission condition is met.

13. The method of claim 12.

14. The step of transmitting the configured CG SDT resource to the UE includes: sending a first RRC Release message to the UE, the first RRC Release message including configuring the CG SDT resource; 13. The method of claim 12.

15. The method further includes the steps of: sending a configured specific PDCCH resource to the UE, the specific PDCCH resource being used for monitoring control information of the network side device; 13. The method of claim 12.

16. The step of transmitting the configured specific PDCCH resource to the UE includes: transmitting a second RRC Release message to the UE, the second RRC Release message including configuring the specific PDCCH resource; 16. The method of claim 15 .

17. The step of transmitting the configured specific PDCCH resource to the UE includes: sending a system message to the UE, the system message comprising: configuring the specific PDCCH resource; 16. The method of claim 15 .

18. A data transmission method applied to a system including a user equipment (UE) and a network side device, comprising: The network side device sends configured configured grant small data transmission (CG SDT) resources to the UE; The UE determines a current data transmission stage, and uses a CG SDT resource in a CG SDT process according to the current data transmission stage; The step of using a CG SDT resource in a CG SDT process based on the current data transmission stage includes: In response to not receiving feedback information of the network side device after the UE transmits data using a first CG SDT resource, the UE does not transmit data using another CG SDT resource, where the current data transmission stage is an initial data transmission stage.

2. A data transmission method comprising:

19. The method of claim 19, wherein when the UE determines that a retransmission condition is met, the UE retransmits the data using a retransmission CG SDT resource.

20. The method of claim 18 .

20. Executing the data transmission method according to any one of claims 1 to 11, or the data transmission method according to any one of claims 12 to 17, or the data transmission method according to any one of claims 18 to 19. A data transmission device comprising:

21. A computer storage medium having computer-executable instructions stored thereon, comprising: The computer executable instructions, when executed by a processor, can result in the data transmission method according to any one of claims 1 to 11, or in the data transmission method according to any one of claims 12 to 17, or in the data transmission method according to any one of claims 18 to 19. Computer storage media.

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