Method and apparatus for determining transmission resources for initiating data transmission.

Abstract

Embodiments of the present disclosure provide a method and apparatus for determining a transmission resource to initiate data transmission. The method (100) performed by the terminal device may include obtaining a time limit to determine whether a set transmission resource is within a time limit (S102), and, based on the fact that the transmission resource is within a time limit and is valid for data transmission, initiating data transmission using the transmission resource in an inactive state (S104). According to embodiments of the present disclosure, since a time limit is taken into consideration when determining the transmission resource, data transmission can be performed in a timely manner.

Description

Technical Field

[0001] Various embodiments of the present disclosure generally relate to communication technologies, and particularly to methods and apparatuses for determining transmission resources for starting data transmission.

Background Art

[0002] In a communication network, particularly in a wireless communication system, transmission resources for data transmission are shared by many participants. Usually, a communication participant such as a UE searches for the next available transmission resource and tries to use it for data transmission (transmission or reception).

[0003] However, if the next transmission resource is far in time for the participant, the delay of data transmission increases.

Summary of the Invention

[0004] This summary is provided to introduce in a concise form some aspects that will be further described in the detailed description that follows. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0005] Certain aspects and embodiments of the present disclosure may provide solutions to these or other problems. Various embodiments are proposed herein to address one or more of the problems disclosed herein. Specific methods and apparatuses for determining transmission resources for starting data transmission may be provided.

[0006] A first aspect of this disclosure provides a method performed by a terminal device, which includes obtaining a time limit to determine whether a configured transmission resource is within a time limit, and, based on the fact that the transmission resource is within a time limit and is valid for data transmission, initiating data transmission using the transmission resource in an inactive state.

[0007] In embodiments of this disclosure, data transmission includes Small Data Transmission (SDT), and transmission resources include Configured Grant (CG) occasions for SDT.

[0008] In embodiments of this disclosure, a CG opportunity is the first valid CG opportunity after the terminal device determines that the transmission resource is within the time limit.

[0009] In embodiments of the present disclosure, the method further includes initiating data transmission using a random access channel (RACH) or a non-SDT procedure based on at least one of the following: the transmission resource is not within the time limit or is invalid.

[0010] In embodiments of the present disclosure, the method further includes determining whether a transmitting resource is valid based on at least one of the following: whether the synchronization signal reference signal received power (SS-RSRP) associated with the transmitting resource is above a threshold, and / or whether the time alignment timer (TAT) is still operating at the time of the transmitting resource.

[0011] In embodiments of the present disclosure, the time limit is indicated by at least one unit of milliseconds, seconds, slots, minislots, subframes, frames, or cycles, or by the number of RACH cycles, or by the current value of TAT.

[0012] In embodiments of this disclosure, the RACH period is determined based on the prach-ConfigurationIndex.

[0013] In embodiments of the present disclosure, the method further includes receiving a time limit setting from a network node.

[0014] In embodiments of this disclosure, a first setting of the time limit applies to mobile outgoing small data transmissions (MO-SDTs), and a second setting of the time limit, different from the first setting, applies to mobile incoming small data transmissions (MT-SDTs).

[0015] In exemplary embodiments of this disclosure, different time limits are applied to different logical channels (LCHs) and / or radio bearers (RBs).

[0016] In embodiments of this disclosure, the terminal device is a user device (UE), and the network node is a base station.

[0017] A second aspect of this disclosure provides a method performed by a network node. This method includes setting a transmission resource on a terminal device, setting a time limit on the terminal device, the time limit being applied to determine whether the set transmission resource is in time or too far for data transmission when the terminal device is inactive, and performing data transmission reception on the set transmission resource based on the fact that the transmission resource is within the time limit and valid for data transmission.

[0018] In embodiments of this disclosure, data transmission includes small data transmission (SDT), and transmission resources include configured grant (CG) opportunities for SDT.

[0019] In embodiments of this disclosure, a computer graphics opportunity is the first valid computer graphics opportunity after the terminal device has determined that the transmission resource is within the time limit.

[0020] In embodiments of this disclosure, data transmission is received using a random access channel (RACH) or a non-SDT procedure based on at least one of the following: the transmission resource is not within the time limit or is invalid.

[0021] In embodiments of the present disclosure, effectiveness is based on at least one of the following: whether the synchronization signal reference received power (SS-RSRP) associated with the transmitting resource is above a threshold, and / or whether the time alignment timer (TAT) is still operating at the time of the transmitting resource.

[0022] In embodiments of the present disclosure, the time limit is indicated by at least one unit of milliseconds, seconds, slots, minislots, subframes, frames, or cycles, or by the number of RACH cycles, or by the current value of TAT.

[0023] In embodiments of this disclosure, the RACH period is determined based on the prach-ConfigurationIndex.

[0024] In embodiments of this disclosure, a first setting of the time limit applies to mobile outgoing small data transmissions (MO-SDTs), and a second setting of the time limit, different from the first setting, applies to mobile incoming small data transmissions (MT-SDTs).

[0025] In embodiments of this disclosure, different time limits are applied to different logical channels (LCHs) and / or radio bearers (RBs).

[0026] In embodiments of this disclosure, the terminal device is a user device (UE), and the network node is a base station.

[0027] A third aspect of the present disclosure is to obtain a time limit for determining whether a set transmission resource is within the time limit, and based on the transmission resource being within the time limit and being effective for data transmission, start data transmission using the transmission resource in the inactive state, and provide a terminal device comprising means configured to perform.

[0028] In an embodiment of the present disclosure, the means is further configured to execute a method according to any embodiment of the first aspect.

[0029] In an embodiment of the present disclosure, the means comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device to perform operations.

[0030] A fourth aspect of the present disclosure is to configure a transmission resource for a terminal device and configure a time limit for the terminal device, the time limit being applied to determine whether the set transmission resource is timely for data transmission or is too far apart in time in the inactive state of the terminal device, and based on the transmission resource being within the time limit and being effective for data transmission, perform reception of data transmission on the set transmission resource, and provide a network node comprising means configured for.

[0031] In an embodiment of the present disclosure, the means is further configured to execute the method described in any embodiment of the second aspect.

[0032] In an embodiment of the present disclosure, the means comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the network node to perform operations.

[0033] A fifth aspect of the present disclosure provides a computer-readable storage medium that stores instructions that, when executed by at least one processor of a terminal device, cause the at least one processor to perform a method according to any embodiment of the first aspect, or, when executed by at least one processor of a network node, cause the at least one processor to perform a method according to any embodiment of the second aspect.

[0034] Embodiments of this specification offer many advantages. Embodiments of this disclosure may provide an improved method for determining a transmission resource to initiate data transmission.

[0035] According to embodiments of this disclosure, by initiating data transmission using a transmission resource in an inactive state based on the fact that the transmission resource is within the time limit and is valid for data transmission, the time limit is taken into consideration in the determination of the transmission resource, and as a result, data transmission can be performed in a timely manner. [Brief explanation of the drawing]

[0036] Other aspects, features, and advantages of various embodiments of the present disclosure will become more readily apparent from the following detailed description with reference, for example, to the accompanying drawings, where identical or equivalent elements are denoted by the same reference numerals or letters. The drawings are provided for a better understanding of the embodiments of the present disclosure and are not necessarily drawn to scale. [Figure 1A] Figure 1A is a flowchart showing a method performed by a terminal device according to an exemplary embodiment of the present disclosure. [Figure 1B] Figure 1B is a flowchart showing further steps of the method shown in Figure 1A according to an embodiment of the present disclosure. [Figure 1C] Figure 1C is a flowchart showing further steps of the method shown in Figure 1A according to an embodiment of the present disclosure. [Figure 1D]Figure 1D is a flowchart showing further steps of the method shown in Figure 1A according to an embodiment of the present disclosure. [Figure 2] Figure 2 is a flowchart showing a method performed by a network node according to an embodiment of the present disclosure. [Figure 3] Figure 3 is a block diagram showing an exemplary configuration of a terminal device according to an embodiment of the present disclosure. [Figure 4] Figure 4 is a block diagram showing an exemplary configuration of a network node according to an embodiment of the present disclosure. [Figure 5] Figure 5 is a block diagram showing a device / computer-readable storage medium according to an embodiment of the present disclosure. [Figure 6] Figure 6 is a block diagram showing an exemplary device unit of a terminal device suitable for performing the method according to the embodiments of the present disclosure. [Figure 7] Figure 7 is a block diagram showing an exemplary device unit of a network node suitable for performing the method according to the embodiments of the present disclosure. [Modes for carrying out the invention]

[0037] Embodiments of this disclosure are described in detail with reference to the accompanying drawings. It should be understood that these embodiments are not intended to limit the scope of this disclosure, but are described solely for the purpose of facilitating understanding. The features, advantages, and characteristics of this disclosure can be combined in any suitable manner in one or more embodiments.

[0038] In general, all terms used herein shall be construed in accordance with their ordinary meanings in the art unless otherwise explicitly stated and / or suggested by the context of use. No steps of any method disclosed herein have to be performed in the order disclosed unless otherwise explicitly stated and / or suggested by the context. Any feature of an embodiment disclosed herein may be applied to any other embodiment as appropriate.

[0039] In this specification, the terms “network” or “communication network” refer to a network that conforms to any appropriate communication standard (such as the Internet network or any wireless network). Examples of wireless communication standards include WLAN (Wireless Local Area Network), New Radio (NR), Long-Term Evolution (LTE), LTE Advanced, and 5G NR. In the following description, the terms “network” and “system” may be used interchangeably.

[0040] The term "network node" refers to a network device, network entity, network function, or other device (physical or virtual) within a communications network. For example, network nodes in a network may include base stations (BS), access points (AP), or other appropriate devices within a wireless communication network. Examples of BS include Node B (NodeB or NB), evolved Node B (eNodeB or eNB), next-generation Node B (gNodeB or gNB), remote radio unit (RRU), radio header (RH), remote radio head (RRH), repeater, and low-power nodes such as femto and pico.

[0041] The term "terminal device" refers to any end device that can access a communication network and receive services from it. Exemplary but not limited to, terminal devices include mobile terminals, user devices (UEs), non-AP devices (such as non-AP STAs), or other appropriate devices. Terminal devices include, but are not limited to, mobile phones, cellular phones, smartphones, wearable devices, in-vehicle wireless terminals, and vehicles.

[0042] For example, a terminal device can represent a device configured to communicate in accordance with one or more communication standards developed by a standardization body such as the Third Generation Partnership Project (3GPP®).

[0043] As yet another example, in an Internet of Things (IoT) scenario, a terminal device can represent a machine or other device that performs monitoring and / or measurement and transmits the results of such monitoring and / or measurement to another terminal device and / or network device. Specific examples of such machines or devices include measuring instruments such as sensors and power meters, industrial machinery, or household or personal appliances including refrigerators, televisions, and wearable devices such as clocks. In other scenarios, a terminal device may represent a vehicle or other device that can monitor and / or report its operating status and other functions related to its operation.

[0044] In this specification, terms such as "first" and "second" may be used to describe various elements, but it should be understood that these elements are not limited by these terms. These terms are used solely to distinguish one element from another. For example, the first element may be called the second element, and similarly, the second element may be called the first element, and these do not depart from the scope of the embodiments. In this specification, the term "and / or" includes any combination of one or more of the relevant enumerated terms.

[0045] In this specification, "at least one of the following: <list of two or more elements>" and "at least one of the <list of two or more elements>" and similar expressions, where lists of two or more elements are joined by "and" or "or", means at least one of those elements, or at least two or more, or all of those elements.

[0046] Embodiments of this disclosure relate to determining transmission resources for initiating data transmission. First, as an example, Small Data Transmission (SDT) is described below.

[0047] A new work item concerning Mobile Terminated-Small Data Transmission (MT-SDT) in NR has been approved in 3GPP® document RP-213583. Its justification and purpose are summarized below. 3 Justification Rel-17 defined MO-SDT to enable small packet recognition for UL-oriented packets. For DL, MT-SDT (i.e., DL-triggered small data) offers similar advantages. Specifically, it reduces signaling overhead and UE power consumption by not transitioning to RRC_CONNECTED, and reduces latency by enabling high-speed transmission of (small and infrequent) packets for applications such as location information acquisition. 4 Purpose 4.1 Purpose of SI or Core Part WI or Examination Part WI [RAN2, RAN3] specifies support for paging-triggered SDT (MT-SDT). • MT-SDT trigger mechanism for UEs in the RRC_INACTIVE state. Supports RA-SDT and CG-SDT as UL responses. • MT-SDT procedure for initial DL data reception and subsequent UL / DL data transmission in the RRC_INACTIVE state. Note: Data transmission in DL within paging messages is outside the scope of this Wi-Fi.

[0048] Furthermore, Mobile-Only SDT (MO-SDT) in NR was defined in Rel-17 (Release 17). The following is a description of Stage 2 of the MO-SDT function (3rd Generation Partnership Project Technical Specification (3GPP® TS) 38.300 v17.2.0 (2022-09)). 18. Small data transmission ·18.0 Overview Small Data Transmission (SDT) is a procedure that enables the transmission of data and / or signaling while maintaining the RRC_INACTIVE state (i.e., without transitioning to the RRC_CONNECTED state). SDT is enabled on a per-radio bearer basis and is initiated by the UE only when, in all radio bearers where SDT is enabled, there is less than a configured amount of UL data waiting to be transmitted, the DL RSRP is above a configured threshold, and a valid SDT resource is available, as specified in section 5.27.1 of TS 38.321 [6]. The SDT procedure is initiated by either a transmission via RACH (configured by system information) or a Type 1 CG resource (configured by dedicated signaling in RRCRelease). SDT resources can be configured on the initial BWP for both RACH and CG. RACH and CG resources for SDT can be configured on either a NUL carrier or a SUL carrier, or both. The CG resource for SDT is only valid within the UE's PCell when an RRCRelease containing a suspend instruction is received. A CG resource is associated with one or more SSBs. For RACH, the network can configure 2-step and / or 4-step RA resources for SDT. If both 2-step and 4-step RA resources for SDT are configured, the UE selects the RA type according to Section 9.2.6. CFRA is not supported for SDT via RACH. Once initiated, the SDT procedure will be one of the following: If the UE is instructed to transition to RRC_IDLE (via RRCRelease), RRC_INACTIVE (via RRCRelease or RRCReject), or RRC_CONNECTED (via RRCResume or RRCSetup), or if the process completes successfully, The process completes unsuccessfully if: a cell is reselected; the SDT failure detection timer expires; the MAC entity reaches the configured maximum PRACH preamble transmission threshold; the RLC entity reaches the configured maximum retransmission threshold; or the SDT-specific timing alignment timer expires while the SDT procedure is in progress on the CG and the UE has not received a response from the network after the initial PUSCH transmission. If the SDT procedure fails to complete, the UE transitions to the RRC_IDLE state. The initial PUSCH transmission during the SDT procedure includes at least a CCCH message. If a CG resource is used for the initial SDT transmission, and the UE does not receive confirmation from the network (dynamic UL grant or DL ​​assignment) before the configured timer specified in section 5.4.1 of TS38.321[6] expires, the UE may autonomously retransmit the initial transmission. After the initial PUSCH transmission, subsequent transmissions are handled differently depending on the type of resource used to initiate the SDT procedure. When using CG resources, the network schedules subsequent UL transmissions using dynamic grants, or they occur on the next available CG resource opportunity. DL transmissions are scheduled by dynamic assignment. A UE can only initiate a subsequent UL transmission after receiving confirmation (dynamic UL grant or DL ​​assignment) from the network for the initial PUSCH transmission. In subsequent UL transmissions, the UE cannot initiate retransmissions via CG resources. When using RACH resources, the network can schedule subsequent UL and DL transmissions, respectively, through dynamic UL grants and DL allocations after the completion of the RA procedure. If data appears in the buffer of a wireless bearer where SDT is not enabled while the SDT procedure is in progress, the UE will use a UEAssistanceInformation message to initiate sending a non-SDT data arrival notification to the network, including the resumption cause if available. The SDT procedure on a CG resource can only be initiated if there is a valid UL timing alignment. The UL timing alignment is maintained by the UE based on an SDT-specific timing alignment timer set by the network via dedicated signaling, and, for the initial CG-SDT transmission, based on a set number of highest-rank SSB DL RSRPs exceeding the set RSRP threshold. When the SDT-specific timing alignment timer expires, the CG resource is released while maintaining the CG resource settings. If logical channel constraints (for wireless bearers with SDT enabled) are configured by the network during the RRC_CONNECTED state and / or in the RRCRelease message, the UE applies them during the SDT procedure. The network can configure the UE to apply ROHC continuity to SDT in any of the following cases: when the UE initiates SDT in its own PCell, when it receives an RRCRelease with a suspend instruction, or when the UE initiates SDT in a cell within its own RNA.

[0049] The MO-SDT procedure is initiated in Media Access Control (MAC) TS38.321 V17.3.0 (2022-12) as follows: 5.27.1 Overview ... When an SDT procedure is initiated by a higher layer, the MAC entity shall perform the following actions: 1> If the amount of UL data awaiting transmission in all RBs configured for SDT is less than or equal to sdt-DataVolumeThreshold Note: In the SDT procedure, the MAC entity also considers suspended RBs when calculating the data volume. The method for calculating the data volume for suspended RBs depends on the UE implementation. The size of CCCH messages is not considered in the data volume calculation. 1> If the RSRP referenced for downlink path loss is higher than sdt-RSRP-Threshold, or, 1> If sdt-RSRP-Threshold is not set, 2> If the serving cell is configured with an auxiliary uplink as specified in TS38.331[5], and, 2> If the RSRP for downlink path loss reference is less than rsrp-ThresholdSSB-SUL, 3> Select the SUL carrier. 2>Otherwise, 3> Select NUL carrier. 2>If CG-SDT is configured on the selected UL carrier, and in the first CG-SDT transmission using a CCCH message in accordance with Section 5.8.2, and in the first available CG opportunity, the TA of CG-SDT is enabled in accordance with Section 5.27.2, and 2> For each RB that has data that can be transmitted, if configured, configuredGrantType1Allowed is set to true for the corresponding logical channel, and 2> If at least one SSB configured for CG-SDT is available that is greater than SS-RSRP in cg-SDT-RSRP-ThresholdSSB, 3> Notify the higher layers that the conditions for initiating the SDT procedure have been met. Perform the CG-SDT procedure on the selected UL carrier in accordance with Section 3>5.8.2. 2>If a set of random access resources for performing RA-SDT in accordance with Section 5.1.1b is selected on the selected UL carrier, 3>If cg-SDT-TimeAlignmentTimer is running, it is considered to have completed its term, and the corresponding processing in section 5.2 is executed. 3> Notify the higher layers that the conditions for initiating the SDT procedure have been met. 2>Otherwise, 3> Notify the higher layers that the conditions for initiating the SDT procedure have not been met. 1> In cases other than those mentioned above, 2> Notify the higher layers that the conditions for initiating the SDT procedure have not been met.

[0050] Furthermore, the following agreement regarding MT-SDT was reached at the 3GPP(registered trademark) RAN2#122 meeting.

[0051] Several agreements were confirmed during the main session of the meeting.

[0052] For both MO and MT-SDT, if the next CG-SDT resource is too far away in time, the RACH resource can be prioritized. This is confirmed at the time of initial resource selection (e.g., when selecting CG SDT). What constitutes "too far away in time" and how to define this was designated as a subject for further consideration (FFS). This discussion is expected to continue in the SDT session. This was subsequently confirmed in the main session.

[0053] In 3GPP® document R2-2305350, proposal P4 of the "SDT Extension for Configured Grants [SDT-Enh-CG]" (the UE checks whether the time until the next CG-SDT transmission opportunity is longer than a configurable threshold before the first transmission on the CG-SDT resource is made, and if so, triggers the RA-SDT procedure) was agreed upon in the MT-SDT session. The chair considered whether other proposals could also be agreed upon.

[0054] Regarding proposal P1a (extending the maximum period of CG-SDT to cover longer periods and allowing CG-SDT procedures to fall back to RACH-based access procedures), One opinion suggests that exceeding 640ms could potentially impact R1 (Working Group) due to its potential to affect UE's power saving and search space settings. One opinion suggests that the reason lies in resource consumption in use cases that do not require frequent resource usage. One opinion suggested that the timeframe would be several hours, while another opinion suggested that RACH SDT could be used in such cases. One opinion suggested that the impact on R1 would be limited and that it would only require adding new values ​​to the table. One point of concern raised was that the situation seems different when it's necessary to cover fallbacks. The chairman stated that, given that P4 had been agreed upon, there seemed to be no support for any further agreements.

[0055] If the impact on RAN1 is extremely small (for example, only a table update), it is possible to extend the maximum period of CG-SDT to accommodate longer periods. A Liaison statement (LS) will be sent to R1 to confirm the impact.

[0056] CG-SDT resources are associated with beams (SSB, synchronization signals, physical broadcast channel blocks), and not all beams are necessarily allocated CG-SDT resources for UE. Multiple CG settings can be configured for CG-SDT, and these can be assigned to (partially) different beams or the same beam.

[0057] There is currently no definition or discussion as to how the UE can determine whether the next CG-SDT resource is "too far away in time" at the start of the SDT procedure.

[0058] Furthermore, the current specification (TS38.321 V17.3.0(2022-12)) has a bug regarding the conditions for starting CG-SDT. "CG-SDT is configured on the selected UL carrier and for the initial CG-SDT transmission with a CCCH message in accordance with Section 5.8.2, In the first available CG opportunity , in accordance with Section 5.27.2 CG-SDT's TA is enabled.case".

[0059] UE may be unable to use the first available CG opportunity due to other circumstances.

[0060] Embodiments of this disclosure may provide a method and apparatus for determining a transmission resource to initiate data transmission.

[0061] Figure 1A is a flowchart showing a method performed by a terminal device according to an exemplary embodiment of the present disclosure.

[0062] As shown in Figure 1A, method 100 includes step S102 (a step of obtaining a time limit to determine whether the configured transmission resource is within the time limit) and step S104 (a step of starting data transmission using the transmission resource in an inactive state, based on the fact that the transmission resource is within the time limit and is valid for data transmission).

[0063] According to embodiments of this disclosure, by initiating data transmission using a transmission resource in an inactive state based on the fact that the transmission resource is within the time limit and is valid for data transmission, it is possible to clearly define whether the transmission resource is "too far in time in the future," and this is achieved by using a time limit. The resulting technical effect is that data transmission can be performed in a timely manner. That is, if the transmission resource is determined to be within the time limit (timely in relation to the delay requirement for data transmission), data transmission can be performed using the transmission resource. On the other hand, if the transmission resource is not within the time limit (too far in time in relation to the delay requirement for the future), another transmission resource can be used for data transmission in order to transmit the data in a timely manner.

[0064] Furthermore, when data is transmitted by a terminal device, the terminal device can initiate data transmission by directly transmitting the data using the transmission resource. When data is received by a terminal device, the terminal device can initiate data transmission by sending a message instructing the transmitting device to transmit the data using the transmission resource. Such a message may be any type of request / response message / signaling to the transmitting device (such as a base station or other terminal device).

[0065] In embodiments of this disclosure, data transmission includes small data transmission (SDT), and transmission resources include configured grant (CG) opportunities for SDT.

[0066] The data transmission may be so-called CG-SDT. However, it should be understood that the method of this embodiment is also applicable to other types of data transmission.

[0067] In embodiments of this disclosure, a computer graphics opportunity is the first valid computer graphics opportunity after the terminal device has determined that the transmission resource is within the time limit.

[0068] According to embodiments of this disclosure, it is possible to clearly determine whether the first effective CG opportunity is too far in time.

[0069] Figure 1B is a flowchart showing further steps of the method shown in Figure 1A according to an embodiment of the present disclosure.

[0070] In embodiments of the present disclosure, method 100 further includes step S106, i.e., initiating data transmission using a random access channel (RACH) or a non-SDT procedure based on at least one of the following: the transmission resource is not within the time limit or is invalid. Such a fallback technique for data transmission can ensure timely transmission of data.

[0071] In other words, if the so-called CG-SDT is too far off in time, a RACH SDT or non-SDT procedure can be used. A non-SDT procedure may be a procedure for establishing or resuming a connection and then performing data transmission. For example, a non-SDT procedure may be an RRC setup procedure or an RRC resumption procedure. In either case, data transmission is performed in a timely manner.

[0072] Figure 1C is a flowchart showing further steps of the method shown in Figure 1A according to an embodiment of the present disclosure.

[0073] In embodiments of the present disclosure, the method further includes step S108, which includes determining whether a transmit resource is valid based on at least one of the following: whether the synchronization signal reference signal received power (SS-RSRP) associated with the transmit resource is above a threshold, and / or whether the time alignment timer (TAT) is still operating at the time of the transmit resource.

[0074] In embodiments of this disclosure, the time limit may be expressed in units of at least one of milliseconds, seconds, slots, minislots, subframes, frames, or cycles. Alternatively, the time limit may be expressed in the number of RACH cycles. Alternatively, the time limit may be expressed in the current value of TAT.

[0075] In embodiments of this disclosure, the RACH period is determined based on the prach-ConfigurationIndex.

[0076] According to embodiments of this disclosure, how the time limit is specifically indicated can be defined.

[0077] Figure 1D is a flowchart showing further steps of the method shown in Figure 1A according to an embodiment of the present disclosure.

[0078] In embodiments of the present disclosure, the method further includes step S110, i.e., receiving a time limit setting from a network node.

[0079] According to embodiments of this disclosure, the time limit may be received from the base station. Therefore, the time limit may be set dynamically. However, it should be understood that the time limit may be pre-set and stored in the terminal device itself. This may be pre-set depending on the practical implementation or in accordance with 3GPP® standards.

[0080] In embodiments of this disclosure, a first setting of the time limit applies to mobile outgoing small data transmissions (MO-SDTs), and a second setting of the time limit, different from the first setting, applies to mobile incoming small data transmissions (MT-SDTs).

[0081] In embodiments of this disclosure, different time limits are applied to different logical channels (LCHs) and / or radio bearers (RBs). For example, the time limits can be determined based on the priority set for the LCHs and / or RBs. For example, shorter time limits may be applied to higher-priority LCHs / RBs, and longer time limits may be applied to lower-priority LCHs / RBs.

[0082] According to embodiments of this disclosure, the specific time limit value may vary depending on the application.

[0083] In exemplary embodiments of this disclosure, the terminal device is a user device (UE), and the network node is a base station.

[0084] According to embodiments of this disclosure, the validity of a CG opportunity is considered in determining whether a CG opportunity is "too far away." Furthermore, if the next valid CG opportunity does not meet the time limit for the "too far away" CG opportunity, the UE is permitted to perform an SDT (or normal restart) based on the RA. This allows data transmission to be performed in a timely manner.

[0085] Figure 2 is a flowchart showing a method performed by a network node according to an exemplary embodiment of the present disclosure.

[0086] As shown in Figure 2, the method 200 includes the steps of: setting a transmission resource in a terminal device (S202); setting a time limit for the terminal device (S204), which is applied to determine whether the set transmission resource is timely for data transmission or too far off when the terminal device is in an inactive state; and receiving data transmission on the set transmission resource (S206), based on the fact that the transmission resource is within the time limit and valid for data transmission.

[0087] In embodiments of this disclosure, data transmission includes small data transmission (SDT), and transmission resources include configured grant (CG) opportunities for SDT.

[0088] In embodiments of this disclosure, a computer graphics opportunity is the first valid computer graphics opportunity after the terminal device has determined that the transmission resource is within the time limit.

[0089] In embodiments of this disclosure, a data transmission is received using a random access channel (RACH) or a non-SDT procedure based on at least one of the following: the transmission resource is not within the time limit or is invalid.

[0090] In embodiments of the present disclosure, effectiveness is based on at least one of the following: whether the synchronization signal reference received power (SS-RSRP) associated with the transmitting resource is above a threshold, and / or whether the time alignment timer (TAT) is still operating at the time of the transmitting resource.

[0091] In embodiments of this disclosure, the time limit may be expressed in milliseconds, seconds, slots, minislots, subframes, frames, or cycles, or it may be expressed in the number of RACH periods, or it may be expressed in the current value of TAT. In one embodiment, the time limit varies depending on the value of TAT. A transmit resource may be considered valid for data transmission if it corresponds to a point in time when the current TAT is still running. On the other hand, a transmit resource is considered invalid for data transmission if it corresponds to a point in time when the currently running TAT has already stopped.

[0092] In exemplary embodiments of this disclosure, the period of RACH is determined based on the prach-ConfigurationIndex.

[0093] In embodiments of this disclosure, a first setting of the time limit applies to mobile outgoing small data transmissions (MO-SDTs), and a second setting of the time limit, different from the first setting, applies to mobile incoming small data transmissions (MT-SDTs).

[0094] In embodiments of this disclosure, different time limits are applied to different logical channels (LCHs) and / or radio bearers (RBs).

[0095] In exemplary embodiments of this disclosure, the terminal device is a user device (UE), and the network node is a base station.

[0096] Therefore, in the above embodiment, at the start of the SDT procedure, the UE (along with other conditions) Next Effective CG OpportunityWe propose determining whether to initiate a CG-SDT for an SDT procedure by determining whether the following valid CG opportunity is within a predetermined time limit. For example, if the next valid CG opportunity is within the predetermined time limit, the UE initiates a CG-SDT for an SDT procedure. For example, if the next valid CG opportunity is not within the predetermined time limit, the UE is permitted to immediately initiate an SDT procedure using RACH or a non-SDT procedure.

[0097] For example, CG machine Effectiveness The effectiveness of a CG opportunity is determined based on whether the SS-RSRP of the SSB associated with that CG opportunity exceeds a threshold (e.g., cg-SDT-RSRP-ThresholdSSB). In another embodiment, the effectiveness of a CG opportunity is further determined based on whether the TAT (e.g., cg-SDT-TimeAlignmentTimer) is still operating at the time of the CG opportunity. In yet another embodiment, these effectiveness conditions may be evaluated simultaneously or at different times.

[0098] For example, time limits are set by network devices. For instance, the set time limit can be expressed in milliseconds, seconds, slots, subframes, or system frames. Alternatively, it can be expressed as the default number of paging cycles for a cell, or the number of UE-specific DRX cycles.

[0099] For example, the time limit is determined by the UE based on the RACH setting. For example, the RACH setting used for this determination is based on the RACH setting for SDT (for MO-SDT procedures) or the RACH setting for non-SDT (for MT-SDT procedures). For example, the time limit may be determined as the number of RACH cycles in the RACH setting. For example, the time limit is Next Effective CG Opportunity This can be determined as the number of complete RACH cycles up to a certain point. For example, the RACH cycle can be determined based on the rach-ConfigurationIndex. This number can be set by the network device or defined in the specification.

[0100] For example, different time limits may be applied to and / or set for MO-SDT and MT-SDT procedures, respectively.

[0101] In one example, different time limits may be applied and / or set for each different logical channel (LCH) or radio bearer (RB) that triggers the start of the SDT procedure or has data to be transmitted at the start of the SDT procedure. In this way, in one example, longer time limits may be applied to delay-tolerant services.

[0102] In one example, the time limit may be based on TAT, and the validity condition may be based on SSB's SS-RSRP.

[0103] In one example, a second time limit may be set by or determined by the UE. In one example, if the next CG opportunity is further away than the second time limit (without considering the effectiveness based on the above embodiment), the UE is permitted to initiate an SDT procedure via RACH or immediately initiate a non-SDT procedure.

[0104] Further detailed examples of implementation into the TS38.321 V17.4.0 (2023-03) specification are provided below. Note that the following proposals do not distinguish between MO-SDT and MT-SDT. However, note that different time limits may apply to these procedures and may be specified separately. 5.27 Small data transmission 5.27.1 Overview MAC entities are set up in an SDT by an RRC, and the SDT procedure can be initiated by the RRC layer. The SDT procedure can be executed by either a 2-step RA type or a 4-step RA type random access procedure (i.e., RA-SDT), or a set grant type 1 (i.e., CG-SDT). RRC sets the following parameters for the SDT procedure. • sdt-DataVolumeThreshold: Data volume threshold for determining whether or not to perform the SDT procedure for the UE. • sdt-RSRP-Threshold: The RSRP threshold used by the UE to determine whether or not to perform the SDT procedure. • cg-SDT-RSRP-ThresholdSSB: The RSRP threshold set for SSB selection in CG-SDT. When the SDT procedure is initiated by a higher layer, the MAC entity must satisfy the following conditions: 1> The amount of pending UL data across all RBs configured for SDT must be less than or equal to sdt-DataVolumeThreshold. *Note 1: In the SDT procedure, the MAC entity also considers suspended RBs set in SDT when calculating the data volume. The method for calculating the data volume for suspended RBs is left to the UE implementation. The size of CCCH messages is not considered in the calculation of data volume. 1> If the RSRP referenced for downlink path loss is higher than sdt-RSRP-Threshold, or, 1> If sdt-RSRP-Threshold is not set, 2>When an auxiliary uplink as defined in TS38.331[5] is set up in the serving cell, and, 2> If the RSRP for downlink path loss reference is less than rsrp-ThresholdSSB-SUL, 3> Select the SUL carrier. 2>Otherwise, 3> Select NUL carrier. JPEG2026527574000002.jpg181692>For each RB for which data is available for transmission, if configuredGrantType1Allowed is configured, and set to true for the corresponding logical channel, 2> If at least one SSB configured for a CG-SDT has an SS-RSRP that exceeds the cg-SDT-RSRP-ThresholdSSB, 3> If any of the at least one SSB has an SS-RSRP that exceeds cg-SDT-RSRP-ThresholdSSB, and has the next associated CG opportunity within configuredTimeLimitCG-SDT, 3> In accordance with Section 5.27.2, if the TA of the initial CG-SDT is valid and in the initial CG-SDT transmission with a CCCH message in accordance with Section 5.8.2, in the first CG opportunity in which SS-RSRP associates an SSB higher than cg-SDT-RSRP-ThresholdSSB, If cg-SDT-TimeAlignmentTimer is running, it is considered expired, and the corresponding process in section 5.2 is executed. 3> Notify the higher layers that the conditions for initiating the SDT procedure have been met. 2>Otherwise, 3> Notify the higher layers that the conditions for initiating the SDT procedure have not been met. 1>Otherwise, 2> Notify the higher layers that the conditions for initiating the SDT procedure have not been met. If RA-SDT is selected as described above and the random access procedure is successfully completed (see Section 5.1.6), the UE monitors the PDCCH addressed to C-RNTI received in the random access response until the RA-SDT procedure is completed. If CG-SDT is selected as described above and the initial transmission for CG-SDT is performed, the UE monitors the PDCCH addressed to C-RNTI and CS-RNTI stored in the UE inactive AS context as defined in TS38.331[5] until the CG-SDT procedure is completed. Note 2: When the UE determines whether there is an SSB where SS-RSRP exceeds cg-SDT-RSRP-ThresholdSSB, the UE uses the most recent unfiltered L1-RSRP measurement.

[0105] The parameter configuredTimeLimitCG-SDT may define the last point in time at which a CG opportunity is still considered valid (i.e., within the time limit). The name of this parameter is merely an example and may ultimately be any name, or may consist of multiple parameters.

[0106] Embodiments of this disclosure offer at least the following advantages: When determining whether a computer graphics opportunity (CG) is "too far in time," the effectiveness of the CG opportunity on which the determination is based is taken into consideration. • If the next available CG opportunity does not meet the time limit for a CG opportunity that is "too far apart in time," the UE can perform an SDT (or normal restart) based on the RA.

[0107] Figure 3 is a block diagram showing an exemplary configuration of a terminal device according to an embodiment of the present disclosure.

[0108] As shown in Figure 3, the terminal device 30 includes means 300 configured for obtaining a time limit to determine whether the configured transmission resource is within the time limit, and for starting data transmission using the transmission resource in an inactive state, based on the fact that the transmission resource is within the time limit and is valid for data transmission.

[0109] In embodiments of this disclosure, means 300 is further configured to carry out the method according to any of the embodiments described above, as shown in Figures 1A, 1B, 1C, and 1D.

[0110] In embodiments of the present disclosure, the means 300 comprises at least one processor 302 and at least one memory 304 that stores instructions that, when executed by the at least one processor 302, cause the operation of the terminal device 30.

[0111] Figure 4 is a block diagram showing an exemplary configuration of a network node according to an embodiment of the present disclosure.

[0112] As shown in Figure 4, the network node 40 includes means 400 configured to set a transmission resource on a terminal device and to set a time limit on the terminal device, the time limit being applied to determine whether the set transmission resource is timely for data transmission or too far off when the terminal device is in an inactive state, and to receive data transmissions on the set transmission resource based on the fact that the transmission resource is within the time limit and is valid for data transmission.

[0113] In embodiments of this disclosure, means 400 is further configured to carry out the method according to any of the embodiments described above, as shown in Figure 2.

[0114] In embodiments of the present disclosure, the means 400 comprises at least one processor 402 and at least one memory 404 that stores instructions that, when executed by the at least one processor 402, cause the network node 40 to perform operations.

[0115] The processors 302 and 402 may be any kind of processing component, including one or more microprocessors or microcontrollers, as well as other digital hardware such as digital signal processors (DSPs) and dedicated digital logic. The memories 304 and 404 may be any kind of storage component, including read-only memory (ROM), random access memory, cache memory, flash memory devices, and optical memory devices.

[0116] Figure 5 is a block diagram showing a device / computer-readable storage medium according to an embodiment of the present disclosure.

[0117] As shown in Figure 5, the computer-readable storage medium 50 stores an instruction 51, which, when executed by at least one processor of a terminal device, causes at least one processor of the terminal device to execute a method according to any of the embodiments described above, as shown in Figures 1A, 1B, 1C, and 1D, or, when executed by at least one processor of a network node, causes at least one processor of the network node to execute a method according to any of the embodiments described above, as shown in Figure 2.

[0118] Furthermore, this disclosure may also provide a medium containing the computer programs / instructions described above. The medium may be an electronic signal, an optical signal, a wireless signal, or one of the computer-readable storage media described above. Computer-readable storage media include, for example, optical discs, or electronic storage devices such as RAM (Random Access Memory), ROM (Read-Only Memory), Flash® memory, magnetic tape, CD-ROM, DVD, and Blu-ray disc.

[0119] Figure 6 is a block diagram showing an exemplary device unit of a terminal device suitable for performing the method according to the embodiments of the present disclosure.

[0120] As shown in Figure 6, the terminal device 60 may include an acquisition unit 602 and a start unit 604. The acquisition unit 602 is configured to acquire a time limit for determining whether a set transmission resource is within the time limit, and the start unit 604 is configured to start data transmission using the transmission resource in an inactive state, based on the fact that the transmission resource is within the time limit and is valid for data transmission.

[0121] In embodiments of this disclosure, the terminal device 60 is further configured to perform the method according to any of the embodiments described above, as shown in Figures 1A, 1B, 1C, and 1D.

[0122] Figure 7 is a block diagram showing an exemplary device unit of a network node suitable for performing the method according to the embodiments of the present disclosure.

[0123] As shown in Figure 7, the network node 70 may include a first setting unit 702 configured to set a transmission resource on a terminal device, a second setting unit 704 that sets a time limit on the terminal device, the time limit being applied to determine whether the set transmission resource is timely for data transmission or too far off when the terminal device is in an inactive state, and an execution unit 706 that performs data transmission reception on the set transmission resource based on the fact that the transmission resource is within the time limit and is valid for data transmission.

[0124] The first setting unit 702 and the second setting unit 704 may or may not be the same unit.

[0125] In embodiments of this disclosure, the network node 70 is further configured to perform the method according to any of the embodiments described above, as shown in Figure 2.

[0126] The term “unit” has its conventional meaning in the fields of electronics, electrical equipment and / or electronic devices, and may include, for example, electrical circuits and / or electronic circuits, devices, modules, processors, memories, logic semiconductors and / or discrete devices, computer programs or instructions for performing their respective tasks, procedures, calculations, outputs and / or display functions, as described herein.

[0127] In this specification, the term "circuit" is defined as follows: (a) Circuit implementation using only hardware (such as implementation using only analog and / or digital circuits), and (b) A combination of hardware circuitry and software, for example (where applicable), (i) combinations of analog and / or digital hardware circuits and software / firmware, (ii) Any combination of a hardware processor (including a digital signal processor), software, and memory, which work together to enable devices such as mobile phones and servers to perform various functions, and (c) Hardware circuits and / or processors (such as microprocessors or parts of microprocessors) that require software (e.g., firmware) for operation, and where the software may not be present if it is not required for operation. This may refer to one, more, or all of them.

[0128] This definition of "circuit" applies to all uses of this term in this disclosure and to any claim. As a further example, as used herein, "circuit" includes not only a mere hardware circuit or processor (or more processors), but also a portion of a hardware circuit or processor and the accompanying software and / or firmware implementation. The term "circuit" also includes, for example, a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device, as applied to the elements of a particular claim.

[0129] By using these units, the device does not require a fixed processor or memory, and can configure all kinds of computing and storage resources from at least one network node / device / entity / device associated with the communication system. To improve the efficiency of network resource utilization and network flexibility, virtualization and network computing technologies (e.g., cloud computing) can be further introduced.

[0130] The technologies described herein can be implemented by various means. Therefore, an apparatus for performing one or more functions of a corresponding apparatus described in an embodiment may include not only means of the prior art but also means for performing one or more functions of the corresponding apparatus described in the embodiment, and may include separate means for each function, as well as means configurable to perform two or more functions. For example, these technologies may be implemented by hardware (one or more devices), firmware (one or more devices), software (one or more modules / units), or a combination thereof. In the case of firmware or software, it may be implemented through modules (e.g., procedures, functions, etc.) that perform the functions described herein.

[0131] In certain embodiments, some or all of the functions described herein may be provided by a processing circuit that executes instructions stored in memory. In this particular embodiment, such instructions may be a computer program product in the form of a non-temporary computer-readable storage medium. In another embodiment, some or all of the functions may be provided by a processing circuit without executing instructions stored in a separate or independent device-readable storage medium, such as a hardwired system. In any of these particular embodiments, whether or not it executes instructions stored in a non-temporary computer-readable storage medium, the processing circuit may be configured to perform the functions described. The benefits provided by such functions are not limited to the processing circuit alone or other configuration elements of the computer device, but are enjoyed by the computer device as a whole, and / or by the end user and the wireless network in general.

[0132] As used herein, the term “non-temporary” refers to a limitation on the medium itself (i.e., tangible and not signal-based), rather than a limitation on the persistence of data storage (e.g., RAM vs. ROM).

[0133] As described in the embodiments of this disclosure above, the embodiments of this specification offer many advantages. According to embodiments of this disclosure, an improved method for determining a transmission resource to initiate a data transmission may be provided.

[0134] According to embodiments of this disclosure, timely data transmission is made possible by specifically defining the time limit and how it is used to determine whether the transmission resource is "too far away in time."

[0135] It should be understood that the embodiments described above are illustrative and not limiting. This disclosure may be implemented in ways other than those specifically described herein without departing from the essential features of this disclosure. All modifications to these embodiments that do not depart from the meaning of the appended claims and the scope of equivalents are incorporated herein.

[0136] The following are references, their entirety incorporated herein. (1) RP-213583, New WI: Mobile Terminated-Small Data Transmission (MT-SDT) for NR, 3GPP(registered trademark) TSG RAN Meeting #94e, Electronic Conference, December 6-17, 2021 (2) 3GPP(registered trademark) TS38.300 v17.2.0(2022-09) (3) 3GPP (registered trademark) TS38.321 V17.3.0 (2022-12) (4) 3GPP (registered trademark) TS38.321 V17.4.0 (2023-03) (5) R2-2305350, 3GPP(registered trademark) TSG-RAN WG2 #122, May 22-26, 2023

[0137] Abbreviations and Explanations UE User Equipment SDT Small Data Transmission MT-SDT Mobile Incoming Small Data Transmission CG-set Grant MO Mobile Call NW Network SSB synchronization signal and physical broadcast channel block RACH Random Access Channel SS-RSRP Synchronization signal reference signal received power DRX discontinuous reception TAT Time Alignment Timer

Claims

1. A method performed by a terminal device, Obtaining the time limit to determine whether the configured transmission resource is within the time limit (S102), Based on the fact that the transmission resource is within the time limit and is valid for data transmission, the data transmission is started using the transmission resource in an inactive state (S104), Method (100), including the method (100).

2. The aforementioned data transmission includes small data transmission (SDT), The aforementioned transmission resources include a set grant (CG) opportunity for the SDT, The method according to claim 1 (100).

3. The aforementioned CG opportunity is the first valid CG opportunity after the terminal device determines that the transmission resource is within the time limit. The method according to claim 2 (100).

4. Based on at least one of the following, the transmission resource is not within the time limit or is not valid, the data transmission is initiated using a random access channel (RACH) or a non-SDT procedure (S106). The method according to any one of claims 1 to 3, further comprising (100).

5. Whether or not the synchronous signal reference signal received power (SS-RSRP) associated with the transmission resource exceeds a threshold, and / or, At the time of the aforementioned transmission resource, whether or not the time alignment timer (TAT) is still operating, Based on at least one of the above, it is determined whether the transmission resource is valid (S108), The method according to any one of claims 1 to 4, further comprising (100).

6. The aforementioned time limit is expressed in units of at least one of the following: milliseconds, seconds, slots, minislots, subframes, frames, or cycles, or The aforementioned time limit is indicated by the number of RACH periods, or The aforementioned time limit is indicated by the current value of TAT. The method according to any one of claims 1 to 5 (100).

7. The method according to claim 6 (100), wherein the RACH period is determined based on the prach-ConfigurationIndex.

8. Receiving the setting for the time limit from the network node (S110), The method according to any one of claims 1 to 7, further comprising (100).

9. The first setting for the aforementioned time limit applies to mobile outgoing small data transmission (MO-SDT), The second setting for the time limit, which differs from the first setting, applies to mobile incoming small data transmission (MT-SDT). The method according to any one of claims 1 to 8 (100).

10. Different time limits apply to different logical channels (LCHs) and / or radio bearers (RBs). The method according to any one of claims 1 to 9 (100).

11. The aforementioned terminal device is a user device (UE), The aforementioned network node is a base station. The method according to any one of claims 1 to 10 (100).

12. A method performed by network nodes, Setting up transmission resources on the terminal device (S202), Setting a time limit for the terminal device (S204), wherein the time limit is applied to determine whether the set transmission resource is timely for data transmission or whether it is too far off in time when the terminal device is in an inactive state. Based on the fact that the transmission resource is within the time limit and is valid for the data transmission, the reception of the data transmission is performed on the configured transmission resource (S206), Method (200), including.

13. The aforementioned data transmission includes small data transmission (SDT), The aforementioned transmission resources include a set grant (CG) opportunity for the SDT, The method according to claim 12 (200).

14. The aforementioned CG opportunity is the first valid CG opportunity after the terminal device determines that the transmission resource is within the time limit. The method according to claim 13 (200).

15. The aforementioned data transmission is received using a Random Access Channel (RACH) or a non-SDT procedure based on at least one of the following: the transmission resource is not within the time limit or is invalid. The method according to any one of claims 12 to 14 (200).

16. The aforementioned effectiveness is, Whether or not the synchronous signal reference signal received power (SS-RSRP) associated with the transmission resource exceeds a threshold, and / or, At the time of the aforementioned transmission resource, whether or not the time alignment timer (TAT) is still operating, A method (200) according to any one of claims 12 to 15, based on at least one of the above.

17. The aforementioned time limit is expressed in units of at least one of the following: milliseconds, seconds, slots, minislots, subframes, frames, or cycles, or The aforementioned time limit is indicated by the number of RACH periods, or The aforementioned time limit is indicated by the current value of TAT. The method according to any one of claims 12 to 16 (200).

18. The method according to claim 17 (200), wherein the RACH period is determined based on the prach-ConfigurationIndex.

19. The first setting for the aforementioned time limit applies to mobile outgoing small data transmission (MO-SDT), The second setting for the time limit, which differs from the first setting, applies to mobile incoming small data transmission (MT-SDT). The method according to any one of claims 12 to 18 (200).

20. Different time limits apply to different logical channels (LCHs) and / or radio bearers (RBs). The method according to any one of claims 12 to 19 (200).

21. The aforementioned terminal device is a user device (UE), The aforementioned network node is a base station. The method according to any one of claims 12 to 20 (200).

22. The time limit is obtained to determine whether the configured transmission resource is within the time limit. Based on the fact that the transmission resource is within the time limit and is valid for data transmission, the system starts the data transmission using the transmission resource while it is in an inactive state. A terminal device (30) comprising means (300) configured in such a manner.

23. The terminal device (30) according to claim 22, wherein the means (300) is further configured to carry out the method described in any one of claims 2 to 11.

24. The means (300) is At least one processor (302), At least one memory (304) which stores instructions that, when executed by the at least one processor (302), cause the operation of the terminal device (30), A terminal device (30) according to claim 22 or 23, comprising:

25. Configure the transmission resources on the terminal device, A time limit is set for the terminal device, and this time limit is applied to determine whether the configured transmission resource is timely for data transmission or too far off when the terminal device is in an inactive state. Based on the fact that the transmission resource is within the time limit and is valid for the data transmission, the reception of the data transmission is performed on the configured transmission resource. A network node (40) comprising means (400) configured in such a manner.

26. The network node (40) according to claim 25, wherein the means (400) is further configured to carry out the method described in any one of claims 13 to 21.

27. The means (400) is At least one processor (402), At least one memory (404) that, when executed by the at least one processor (402), stores instructions that cause the network node (40) to perform an action, A network node (40) according to claim 25 or 26, comprising:

28. When executed by at least one processor of a terminal device, the at least one processor of the terminal device is made to perform the method according to any one of claims 1 to 11, or When executed by at least one processor of a network node, the method according to any one of claims 12 to 21 is performed by the at least one processor of the network node. A computer-readable storage medium (50) for storing instructions (501).

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