A method and device used in a communication node for wireless communication

Abstract

The present application discloses a method and apparatus in a communication node used for wireless communication. The communication node receives a first signaling, and the first signaling is used to determine a first timing advance; determines whether to clear a first buffer at a first moment according to at least an RRC state; the time interval between the first signaling received by the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between the first signaling received by the behavior and the first moment; the behavior determines whether to clear the first buffer at a first moment according to at least an RRC state, including: when the first signaling is always in an RRC connected state between the first signaling received by the behavior and the first moment, clearing the first buffer at the first moment; when the first signaling is always in an RRC inactive state between the first signaling received by the behavior and the first moment, not clearing the first buffer at the first moment.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and in particular to a transmission method and device for a small data packet service. Background Art

[0002] NR (New Radio) supports the RRC (Radio Resource Control) inactive (RRC_INACTIVE) state. Until 3GPP Rel-16, the RRC inactive state does not support data transmission. When the user equipment (UE) has periodic or non-periodic infrequent small data packets to send in the RRC_INACTIVE state, it needs to resume the connection first, that is, switch to the RRC connected (RRC_CONNECTED) state, and then switch to the RRC_INACTIVE state after the data is sent. The 3GPP RAN#86 meeting decided to carry out the "NR INACTIVE state small data packet transmission (SDT)" work item (WI) to study the small data packet transmission technology in the RRC_INACTIVE state, including sending uplink data on the pre-configured PUSCH (Physical Uplink Shared Channel) resources, or using Message 3 (Msg3) or Message B (MsgB) in the random access (RA) process to carry data. Summary of the invention

[0003] In the RRC_CONNECTED state, the base station maintains the timing advance (TA) of the UE. In RRC_INACTIVE or RRC_IDLE, when a timing advance command is received, the timing advance is adjusted according to the timing advance command, and the timer timeAlignmentTimer is started or restarted. When the timeAlignmentTimer expires, if SDT is being executed, it will affect the current SDT transmission. Therefore, it is necessary to enhance the timeAlignmentTimer.

[0004] In view of the above problems, this application provides a solution. In the description of the above problems, the NR scenario is used as an example; this application is also applicable to scenarios such as LTE (Long Term Evolution) or NB-IoT (NarrowBand Internet of Things), achieving similar technical effects in the NR scenario. In addition, the use of a unified solution for different scenarios can also help reduce hardware complexity and costs.

[0005] As an embodiment, the interpretation of the terminology in the present application refers to the definition of the 3GPP specification protocol TS 36 series.

[0006] As an example, the interpretation of the terms in the present application refers to the definitions of the TS 38 series of specification protocols of 3GPP.

[0007] As an example, the interpretation of the terms in the present application refers to the definitions of the TS 37 series of specification protocols of 3GPP.

[0008] As an embodiment, the interpretation of the terms in this application refers to the definition of the standard protocol of IEEE (Institute of Electrical and Electronics Engineers).

[0009] It should be noted that, in the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0010] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0011] receiving a first signaling, wherein the first signaling is used to determine a first timing advance; determining whether to clear a first buffer at a first moment according to at least an RRC state;

[0012] The time interval between receiving the first signaling from the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between receiving the first signaling from the behavior and the first moment; and the behavior determines whether to clear the first buffer at the first moment according to at least the RRC state, including:

[0013] When the RRC connection state is always maintained from the receiving of the first signaling by the behavior to the first moment, clearing the first buffer at the first moment;

[0014] When the RRC is always in an inactive state from the time when the first signaling is received in the behavior to the first moment, the first buffer is not cleared at the first moment.

[0015] As an embodiment, the problem to be solved by the present application includes: in the current protocol, when the UE is in the RRC_INACTIVE state, the base station cannot maintain the TA.

[0016] As an embodiment, the problem to be solved by the present application includes: when the first timer expires, clearing the first buffer will affect the current transmission.

[0017] As an embodiment, the characteristics of the above method include: determining whether to clear the first buffer according to the RRC state.

[0018] As an embodiment, the characteristics of the above method include: whether to clear the first buffer is related to the RRC state.

[0019] As an embodiment, the characteristics of the above method include: when the RRC connection state is always in the period from receiving the first signaling from the behavior to the first moment, clearing the first buffer at the first moment.

[0020] As an embodiment, the characteristics of the above method include: when the RRC is always in an inactive state from the time when the first signaling is received from the behavior to the first moment, the first buffer is not cleared at the first moment.

[0021] As an embodiment, the benefits of the above method include: avoiding the impact of clearing the first buffer on the current transmission.

[0022] As an embodiment, the benefits of the above method include: avoiding triggering unnecessary operations.

[0023] As an embodiment, the benefits of the above method include: improving transmission efficiency.

[0024] According to one aspect of the present application, it is characterized by comprising:

[0025] In response to receiving the first signaling as the behavior, applying the first timing advance and starting the first timer;

[0026] Among them, the running time of the first timer from the time when the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0027] According to one aspect of the present application, it is characterized by comprising:

[0028] In response to receiving the first signaling as the behavior, starting the first timer is abandoned.

[0029] According to one aspect of the present application, it is characterized by comprising:

[0030] receiving a first message; and starting the first timer in response to the receiving of the first message by the action;

[0031] The first message is used for the transition of the RRC state.

[0032] According to one aspect of the present application, it is characterized by comprising:

[0033] In response to receiving the first signaling as the behavior, starting a second timer; determining whether to clear the first buffer at the first moment according to whether at least the second timer is running;

[0034] The second timer is different from the first timer.

[0035] According to one aspect of the present application, it is characterized by comprising:

[0036] When the second timer is running, a second expiration value of the first timer is determined according to the second timer in response to the behavior receiving the first message.

[0037] According to one aspect of the present application, it is characterized by comprising:

[0038] Sending a second message set in the RRC inactive state;

[0039] Among them, the second message set triggers the first signaling.

[0040] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0041] Sending a first signaling, where the first signaling is used to determine a first timing advance;

[0042] Among them, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval from when the first signaling is received to the first moment is greater than or equal to the first expiration value of the first timer; any message indicating the timing advance amount is not received from when the first signaling is received to the first moment; the phrase whether the first buffer is cleared at the first moment is determined according to at least an RRC state includes:

[0043] When the RRC connection state is always maintained from the time when the first signaling is received to the first moment, the first buffer is cleared at the first moment;

[0044] When the RRC is inactive state from when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

[0045] According to one aspect of the present application, it is characterized in that, as a response to the first signaling being received, the first timing advance is applied and the first timer is started; wherein, the running time of the first timer from the time when the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0046] According to one aspect of the present application, it is characterized in that, as a response to the first signaling being received, the first timer is abandoned.

[0047] According to one aspect of the present application, it is characterized by comprising:

[0048] Sending a first message;

[0049] In which, as a response to the first message being received, the first timer is started; and the first message is used for the transition of the RRC state.

[0050] According to one aspect of the present application, it is characterized in that, as a response to the first signaling being received, a second timer is started; wherein, whether the first buffer is cleared at the first moment is determined based on whether at least the second timer is running; and the second timer is different from the first timer.

[0051] According to one aspect of the present application, it is characterized in that when the second timer is running, as a response to the first message being received, a second expiration value of the first timer is determined according to the second timer.

[0052] According to one aspect of the present application, it is characterized by comprising:

[0053] receiving a second message set;

[0054] The second message set triggers the first signaling; and the second message set is sent in the RRC inactive state.

[0055] The present application discloses a first node used for wireless communication, characterized in that it includes:

[0056] A first receiver receives a first signaling, where the first signaling is used to determine a first timing advance; and determines whether to clear a first buffer at a first moment according to at least an RRC state;

[0057] The time interval between receiving the first signaling from the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between receiving the first signaling from the behavior and the first moment; and the behavior determines whether to clear the first buffer at the first moment according to at least the RRC state, including:

[0058] When the RRC connection state is always maintained from the receiving of the first signaling by the behavior to the first moment, clearing the first buffer at the first moment;

[0059] When the RRC is always in an inactive state from the time when the first signaling is received in the behavior to the first moment, the first buffer is not cleared at the first moment.

[0060] The present application discloses a second node used for wireless communication, characterized in that it includes:

[0061] A second transmitter sends a first signaling, where the first signaling is used to determine a first timing advance;

[0062] Among them, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval from when the first signaling is received to the first moment is greater than or equal to the first expiration value of the first timer; any message indicating the timing advance amount is not received from when the first signaling is received to the first moment; the phrase whether the first buffer is cleared at the first moment is determined according to at least an RRC state includes:

[0063] When the RRC connection state is always maintained from the time when the first signaling is received to the first moment, the first buffer is cleared at the first moment;

[0064] When the RRC is inactive state from when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

[0065] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0066] -.Avoid the impact of clearing the first buffer on the current transmission;

[0067] -.Avoid triggering unnecessary operations;

[0068] -. Improve transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0070] Figure 1 A flow chart showing the transmission of a first signaling according to an embodiment of the present application is shown;

[0071] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0072] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0073] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0074] Figure 5 A flowchart of wireless signal transmission according to an embodiment of the present application is shown;

[0075] Figure 6 A wireless signal transmission flow chart according to another embodiment of the present application is shown;

[0076] Figure 7 A wireless signal transmission flow chart according to another embodiment of the present application is shown;

[0077] Figure 8 A schematic diagram showing a method of giving up starting a first timer when receiving a first signaling according to an embodiment of the present application is shown;

[0078] Fig. 9 A schematic diagram showing starting a first timer when receiving a first signaling according to an embodiment of the present application is shown;

[0079] Fig.10 A schematic diagram showing starting a second timer when receiving a first signaling according to an embodiment of the present application is shown;

[0080] Fig.11 A schematic diagram showing starting a first timer and a second timer when receiving a first signaling according to an embodiment of the present application is shown;

[0081] Fig.12 A schematic diagram showing starting a first timer when a first message is received according to an embodiment of the present application is shown;

[0082] Fig.13 A schematic diagram showing starting a first timer when a first message is received according to another embodiment of the present application is shown;

[0083] Fig.14 A schematic diagram showing starting a first timer when a first message is received according to yet another embodiment of the present application;

[0084] Fig.15 A schematic diagram showing starting a first timer when a first message is received according to yet another embodiment of the present application is shown;

[0085] Fig.16 A schematic diagram showing whether to clear a first buffer at a first moment according to an RRC state and a first parameter set according to an embodiment of the present application is shown;

[0086] Fig.17 A schematic diagram showing a timing relationship between an uplink and a downlink and a first timing advance according to an embodiment of the present application is shown;

[0087] Fig.18 A schematic diagram showing determining a second expiration value of a first timer according to a second timer according to an embodiment of the present application is shown;

[0088] Fig.19 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0089] Fig. 20 A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown;

[0090] Fig.21 A wireless signal transmission flow chart of a second message set triggering a first signaling according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0091] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0092] Example 1

[0093] Embodiment 1 illustrates a flow chart of the transmission of the first signaling according to an embodiment of the present application, as shown in the attached Figure 1 Attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0094] In Example 1, the first node in the present application receives a first signaling in step 101, and the first signaling is used to determine a first timing advance; in step 102, it is determined whether to clear the first buffer at the first moment according to at least the RRC state; wherein the time interval from the receipt of the first signaling by the behavior to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the receipt of the first signaling by the behavior to the first moment; the behavior determines whether to clear the first buffer at the first moment according to at least the RRC state, including: when the RRC connection state is always in the period from the receipt of the first signaling by the behavior to the first moment, the first buffer is cleared at the first moment; when the RRC inactive state is always in the period from the receipt of the first signaling by the behavior to the first moment, the first buffer is not cleared at the first moment.

[0095] As an embodiment, the first signaling is received during an SDT (Small Data Transmission) process.

[0096] As a sub-embodiment of this embodiment, the SDT process includes transmitting a small data packet in the RRC_INACTIVE state.

[0097] As a sub-embodiment of this embodiment, the SDT includes an IDT (RRC_INACTIVE Data Transmission).

[0098] As a sub-embodiment of this embodiment, the SDT process includes transmitting a data packet via a DRB (Data Radio Bearer) in an RRC (Radio Resource Control) inactive state.

[0099] As a sub-embodiment of this embodiment, the SDT process includes transmitting data packets through one or more DRBs in an RRC inactive state.

[0100] As a sub-embodiment of this embodiment, the SDT process includes restoring one or more DRBs in an RRC inactive state and transmitting data packets through the one or more DRBs.

[0101] As a sub-embodiment of this embodiment, the SDT process includes sending DRB data on configured resources in an RRC inactive state.

[0102] As a sub-embodiment of this embodiment, the SDT process includes sending a data packet on a resource block configured in an RRCRelease message or RRCConnectionRelease in an RRC inactive state.

[0103] As a sub-embodiment of this embodiment, a given timer is running and is used to determine during the SDT process.

[0104] As a subsidiary embodiment of this sub-embodiment, the given timer includes T319.

[0105] As a subsidiary embodiment of this sub-embodiment, the name of the given timer includes T3.

[0106] As a subsidiary embodiment of this sub-embodiment, the given timer includes a MAC (Medium Access Control) layer timer.

[0107] As a subsidiary embodiment of this sub-embodiment, the given timer includes an RRC layer timer.

[0108] As a subsidiary embodiment of this sub-embodiment, the given timer includes a PDCP (Packet Data Convergence Protocol) layer timer.

[0109] As an embodiment, the SDT includes a first type SDT.

[0110] As a sub-embodiment of this embodiment, the first type of SDT refers to an SDT initiated through a random access (Random Access, RA) process.

[0111] As a sub-embodiment of this embodiment, the first uplink (UL) PUSCH (Physical Uplink Shared Channel) of the first type of SDT is sent via message 3 (Message 3, Msg3) or message A (Message A, MsgA).

[0112] As a sub-embodiment of this embodiment, the first type of SDT refers to sending a data packet through at least one of message 3 (Message 3, Msg3) or message A (Message A, MsgA) in the random access process in the RRC_INACTIVE state, and the data packet is associated with one or more DRBs.

[0113] As an embodiment, the SDT includes a second type of SDT.

[0114] As a sub-embodiment of this embodiment, the second type of SDT refers to an SDT initiated through pre-configured resources.

[0115] As a sub-embodiment of this embodiment, the second type of SDT refers to sending a data packet through the pre-configured resources configured in RRCRelease in the RRC_INACTIVE state, and the data packet is associated with one or more DRBs.

[0116] As a sub-embodiment of this embodiment, the pre-configured resources include Configured Grant.

[0117] As a sub-embodiment of this embodiment, the pre-configured resources include PUR (Preconfigured Uplink Resource).

[0118] As a sub-embodiment of this embodiment, the pre-configured resources include SPS (Semi-Persistent Scheduling).

[0119] As a sub-embodiment of this embodiment, the pre-configured resources include at least one of time domain resources, frequency domain resources, space domain resources, and code domain resources.

[0120] As an embodiment, the first uplink PUSCH of the second type SDT is sent through pre-configured resources.

[0121] As an embodiment, the first signaling is not received during the SDT process.

[0122] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: the first signaling indicates the first timing advance.

[0123] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: the first signaling explicitly indicates the first timing advance.

[0124] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: the first signaling implicitly indicates the first timing advance.

[0125] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: the first timing advance is carried in the first signaling.

[0126] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: calculating the first timing advance according to the first signaling.

[0127] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: the first signaling includes the first timing advance.

[0128] As an embodiment, the phrase that the first signaling is used to determine the first timing advance includes: the first signaling is used to determine the first timing advance.

[0129] As an embodiment, the phrase that the first signaling is used to determine a first timing advance includes: determining the first timing advance according to the first signaling.

[0130] As an embodiment, the first signaling is received in the RRC connection state.

[0131] As an embodiment, the first signaling is received in the RRC inactive state.

[0132] As an embodiment, the first signaling is sent in the RRC connection state.

[0133] As an embodiment, the first signaling is sent in the RRC inactive state.

[0134] As an embodiment, the first signaling is transmitted via an air interface.

[0135] As an embodiment, the first signaling is sent through an antenna port.

[0136] As an embodiment, the first signaling is transmitted via high-layer signaling.

[0137] As an embodiment, the first signaling is transmitted via higher layer signaling.

[0138] As an embodiment, the first signaling includes a downlink (DL) signal.

[0139] As an embodiment, the first signaling includes a sidelink (Sidelink, SL) signal.

[0140] As an embodiment, the first signaling includes an RRC message.

[0141] As an embodiment, the first signaling includes all or part of the IE (Information Element) of the RRC message.

[0142] As an embodiment, the first signaling includes all or part of the fields in an IE of an RRC message.

[0143] As an embodiment, the first signaling includes physical layer signaling.

[0144] As an embodiment, the first signaling includes MAC PDU (Protocol Data Unit).

[0145] As an embodiment, the first signaling includes a MAC sub-PDU.

[0146] As an embodiment, the first signaling includes a MAC subheader.

[0147] As an embodiment, the first signaling includes MAC CE (Control Element).

[0148] As an embodiment, the first signaling includes a RAR (Random Access Response).

[0149] As an embodiment, the first signaling includes MAC RAR.

[0150] As an embodiment, the first signaling includes fallbackRAR.

[0151] As an embodiment, the first signaling includes successRAR.

[0152] As an embodiment, the first signaling includes a Timing Advance Command MAC CE.

[0153] As an embodiment, the first signaling includes Absolute Timing Advance Command MACCE.

[0154] As an embodiment, the first signaling includes Timing Delta MAC CE.

[0155] As an embodiment, the first signaling includes a field in a MAC CE.

[0156] As an embodiment, the first signaling includes a field in a RAR, and the RAR includes a MACRAR, or a fallbackRAR, or a successRAR.

[0157] As an embodiment, the first signaling includes a Timing Advance Command field.

[0158] As an embodiment, the first signaling is a Timing Advance Command field.

[0159] As an embodiment, the first signaling includes an RRC message.

[0160] As an embodiment, the first signaling includes a field in an RRC message.

[0161] As an embodiment, the first signaling includes an IE in an RRC message.

[0162] As an embodiment, the first signaling includes a positive integer number of bits.

[0163] As an embodiment, the size of the first signaling is 6 bits.

[0164] As an embodiment, the size of the first signaling is 12 bits.

[0165] As an embodiment, a field in the first signaling indicates an index value T A , the index value T A is used to control the timing adjustment applied by the MAC entity, where the T A See 3GPP TS 38.321 for the definition.

[0166] As a sub-embodiment of this embodiment, the index value T A is an integer.

[0167] As a sub-embodiment of this embodiment, the index value T A is an integer not less than 0 and not greater than 63.

[0168] As a sub-embodiment of this embodiment, the index value T A is an integer not less than 0 and not greater than 3846.

[0169] As a sub-embodiment of this embodiment, the first signaling includes a MAC CE, the one field includes a Timing Advance Command field, and the one MAC CE includes a Timing Advance Command MAC CE or an Absolute Timing Advance Command MAC CE.

[0170] As a sub-embodiment of this embodiment, the first signaling includes a RAR, the one field includes a Timing Advance Command field, and the one RAR includes one of a MAC RAR, a fallbackRAR, or a successRAR.

[0171] As an embodiment, the first timing advance includes an amount of the time alignment.

[0172] As an embodiment, the first timing advance includes N TA , where N TA For the definition, see 3GPP TS38.213.

[0173] As an embodiment, the first timing advance includes N TA T c , where T c For the definition, see 3GPP TS38.213.

[0174] As an embodiment, the first timing advance is A ·16·64 / 2 μ equal.

[0175] As an embodiment, the first timing advance N TA =T A ·16·64 / 2 μ .

[0176] As an embodiment, the first timing advance is TA_old +(T A -31)·16·64 / 2 μ Equal, the N TA_old It is the old timing advance.

[0177] As an embodiment, the first timing advance is A ·16·64 / 2 μ and T c The product of is equal.

[0178] As an embodiment, the first timing advance is TA_old +(T A -31)·16·64 / 2 μ and T c The product is equal to the N TA_old Indicates the timing adjustment amount of the last timing alignment.

[0179] As an embodiment, the first timing advance N TA_new=N TA_old +(T A -31)·16·64 / 2μ, where N TA_new Indicates the current timing adjustment amount, the N TA_old Indicates the timing adjustment amount of the last timing alignment.

[0180] As an embodiment, μ is a non-negative integer, and μ is not greater than 256.

[0181] As an embodiment, μ is one of 0, 1, 2, 3, or 4.

[0182] As an embodiment, the μ is related to the sub-carrier spacing (SCS).

[0183] As an embodiment, the subcarrier spacing Δf is 2 μ 15kHz.

[0184] As an embodiment, the first signaling includes an index value, and the index value is used to determine a timing adjustment amount.

[0185] As an embodiment, the first signaling includes a timing adjustment amount.

[0186] As an embodiment, the first signaling includes a positive integer number T c .

[0187] As an embodiment, the time unit refers to the basic time unit of the NR (New Radio) system.

[0188] As an embodiment, the first signaling includes a positive integer number of milliseconds.

[0189] As an embodiment, the first signaling and the first step length are used to determine a timing adjustment amount.

[0190] As an embodiment, the first timing advance is related to the first step length.

[0191] As an embodiment, the first timing advance is an integer multiple of the first step length, and the first step length includes 16·64·T c / 2 μ .

[0192] As an embodiment, the phrase according to at least the RRC state includes: only according to the RRC state.

[0193] As an embodiment, the phrase according to at least the RRC state includes: according to the RRC state and at least one parameter outside the RRC state.

[0194] As an embodiment, the phrase according to at least the RRC state includes: according to the RRC state and a first parameter set.

[0195] As an embodiment, the first moment includes a specific moment.

[0196] As an embodiment, the first moment includes a time interval.

[0197] As an embodiment, the first moment is related to the processing capability of the first node.

[0198] As an embodiment, the first moment is related to a CPU (Central Processing Unit) of the first node.

[0199] As an embodiment, the first moment is related to a crystal oscillator of the first node.

[0200] As an embodiment, the first moment is for the convenience of description, and may be offset due to equipment or timing in specific implementation.

[0201] As an embodiment, the first moment includes the moment when the first timer expires.

[0202] As an embodiment, the first moment includes a moment determined by a time length equal to the first expiration value of the first timer since the behavior receives the first signaling.

[0203] As an embodiment, the first moment includes a moment determined by a time length greater than the first expiration value of the first timer since the behavior receives the first signaling.

[0204] As an embodiment, the clearing means: refreshing.

[0205] As an embodiment, the meaning of clearing includes: clearing.

[0206] As an embodiment, the meaning of clearing includes: flush.

[0207] As an embodiment, the first buffer includes a buffer (Buffer).

[0208] As an embodiment, the first buffer includes an uplink (UL) buffer.

[0209] As an embodiment, the first buffer includes a Msg3 buffer.

[0210] As an embodiment, the first buffer includes a MsgB buffer.

[0211] As an embodiment, the first buffer includes a soft buffer.

[0212] As an embodiment, the first buffer includes a HARQ (Hybrid Automatic RepeatreQuest) buffer.

[0213] As an embodiment, the first buffer includes any HARQ buffer among all HARQ buffers of all serving cells.

[0214] As an embodiment, the first buffer is associated with a MAC entity.

[0215] As an embodiment, the first buffer is used for CG-SDT.

[0216] As an embodiment, the first buffer is used for SDT.

[0217] As an embodiment, the first buffer is used for the first HARQ process.

[0218] As a sub-embodiment of this embodiment, the first HARQ process is a HARQ process.

[0219] As a sub-embodiment of this embodiment, the first HARQ process is associated with a HARQ process identifier.

[0220] As an embodiment, the RRC state includes an RRC connection state.

[0221] As a sub-embodiment of this embodiment, the RRC connection state includes the RRC_CONNECTED state.

[0222] As a sub-embodiment of this embodiment, the RRC connection state includes a state in which a 5GC-NG-RAN connection (C-plane and U-plane) is established for the first node.

[0223] As a sub-embodiment of this embodiment, the RRC connection state includes a state in which both the NG-RAN (Next Generation Radio Access Network) and the first node store the AS (Access Stratum) context of the first node.

[0224] As a sub-embodiment of this embodiment, the RRC connection state includes a state, in which the NG-RAN of the first node knows to which cell the first node belongs.

[0225] As a sub-embodiment of this embodiment, the RRC connection state includes a state in which the network controls the mobility including measurement of the first node.

[0226] As an embodiment, the RRC state includes an RRC inactive state.

[0227] As a sub-embodiment of this embodiment, the RRC inactive state includes the RRC_INACTIVE state.

[0228] As a sub-embodiment of this embodiment, the RRC inactive state includes the RRC_IDLE state.

[0229] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which PLMN selection is supported.

[0230] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which broadcasting system information is supported.

[0231] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which cell reselection mobility is supported.

[0232] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which paging of mobile terminated data is initiated by 5GC (5G Core Network).

[0233] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which DRX (Discontinuous Reception) of CN (Core Network) paging is configured by NAS (Non Access Stratum).

[0234] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which paging is initiated by NG-RAN (RAN paging).

[0235] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which NG-RAN manages RNA (RAN-based notification area).

[0236] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which the DRX of RAN paging is configured by NG-RAN.

[0237] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which a 5GC-NG-RAN connection (C-plane and U-plane) is established for the first node.

[0238] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which both the NG-RAN and the first node store the AS context of the first node.

[0239] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which the first node NG-RAN knows to which RNA the UE belongs.

[0240] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which the first node does not monitor PDCCH (Physical Downlink Control Channel).

[0241] As a sub-embodiment of this embodiment, the RRC inactive state includes a state in which the first node does not perform RRM (Radio Resource Management) measurement.

[0242] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to at least the RRC state includes: determining whether to clear all HARQ buffers of all service cells at the first moment according to at least the RRC state, and the first buffer is any HARQ buffer among all the HARQ buffers.

[0243] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to at least the RRC state includes: determining whether to clear the first buffer at the first moment only according to the RRC state.

[0244] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to at least an RRC state includes: whether to clear the first buffer at the first moment is related to the RRC state.

[0245] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to at least the RRC state includes: when the RRC connection state is always in place from the time when the first signaling is received by the behavior to the first moment, clearing the first buffer at the first moment.

[0246] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to at least the RRC state includes: when the RRC is always in an inactive state from the time the first signaling is received by the behavior to the first moment, the first buffer is not cleared at the first moment.

[0247] As an embodiment, the behavior of not clearing the first buffer includes: giving up clearing the first buffer.

[0248] As an embodiment, the behavior of not clearing the first buffer includes: not performing related actions of clearing the first buffer.

[0249] As an embodiment, the behavior of not clearing the first buffer includes: the first buffer is not refreshed.

[0250] As an embodiment, the sentence "when the RRC connection state is always in progress from the receipt of the first signaling from the behavior to the first moment, the first buffer is cleared at the first moment" includes: if the RRC connection state is always in progress from the receipt of the first signaling from the behavior to the first moment, the first buffer is cleared at the first moment.

[0251] As an embodiment, the sentence "When the RRC is inactive state from the time the first signaling is received from the behavior to the first moment, the first buffer is not cleared at the first moment" includes: if the RRC is inactive state from the time the first signaling is received from the behavior to the first moment, the first buffer is not cleared at the first moment.

[0252] As an embodiment, as a response to receiving the first signaling, the behavior of giving up starting the first timer is used to determine that the first timer has not expired at the first moment, and the first timer not expiring at the first moment is used to determine that the first buffer is not cleared at the first moment.

[0253] As an embodiment, as a response to the behavior receiving the first signaling, the first timing advance is applied and the first timer is started; wherein, the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0254] As an embodiment, when the RRC inactive state is converted to the RRC connected state between receiving the first signaling from the behavior and the first moment, the first buffer is cleared at the first moment.

[0255] As an embodiment, when the RRC inactive state is converted to the RRC connected state between receiving the first signaling from the behavior and the first moment, the first buffer is not cleared at the first moment.

[0256] As an embodiment, when the RRC connected state is converted to the RRC inactive state between receiving the first signaling from the behavior and the first moment, the first buffer is cleared at the first moment.

[0257] As an embodiment, a first message is received; as a response to the behavior receiving the first message, the first node is converted from an RRC inactive state to an RRC connected state; wherein the first message is received between the behavior receiving the first signaling and the first moment.

[0258] As an embodiment, a first message is received; as a response to the behavior of receiving the first message, the first node is converted from an RRC inactive state to an RRC connected state; wherein the first message is received at a time after the first time.

[0259] As an embodiment, a RRCRelease message is received; as a response to the behavior receiving the RRCRelease message, the first node is converted from an RRC connected state to an RRC inactive state; wherein the RRCRelease message is received between the behavior receiving the first signaling and the first moment.

[0260] As an embodiment, a RRCRelease message is received; as a response to the behavior of receiving the RRCRelease message, the first node is converted from an RRC connected state to an RRC inactive state; wherein the RRCRelease message is received at a time after the first time.

[0261] As an embodiment, a RRCRelease message is received; as a response to the behavior receiving the RRCRelease message, the first node is kept in an RRC inactive state; wherein the RRCRelease message is received between the time when the behavior receives the first signaling and the first moment; and the first node is always in an RRC inactive state from the time when the behavior receives the first signaling to the first moment.

[0262] As an embodiment, it is determined whether to notify the RRC to release the PUCCH (Physical Uplink Control Channel) at the first moment according to at least the RRC state, wherein the PUCCH is configured and belongs to any service cell.

[0263] As an embodiment, whether to notify RRC to release SRS (Sounding Reference Signal) at the first moment is determined according to at least RRC state, wherein the SRS is configured and belongs to any service cell.

[0264] As an embodiment, it is determined whether to delete (Clear) the configured (Configured) downlink assignments (Downlink Assignments) and the configured uplink grants (Uplink Grants) at the first moment according to at least the RRC state.

[0265] As an embodiment, it is determined whether to delete PUSCH resources reported by semi-static (Semi-Persistent) CSI (Channel State Information) at the first moment according to at least the RRC state.

[0266] As an embodiment, it is determined whether all running first-type timers are considered expired at a first moment according to at least an RRC state.

[0267] As an embodiment, it is determined whether to maintain N of all TAGs (Timing Advance Groups) at the first moment according to at least the RRC state. TA .

[0268] As an embodiment, it is determined according to at least the RRC state whether to clear the first buffer at the first moment, or to notify the RRC to release the PUCCH, or to notify the RRC to release the SRS, or to delete the configured downlink allocation and the configured uplink authorization, or to delete the PUSCH resources reported by the semi-static CSI, or to consider that all the running first-type timers have expired, and to maintain the N of all TAGs. TAAt least one of .

[0269] As a sub-embodiment of this embodiment, when the RRC connection state is always maintained between the first timing advance and the first moment in the behavior application, the first buffer is cleared at the first moment, or the RRC is notified to release the PUCCH, or the RRC is notified to release the SRS, or the configured downlink allocation and the configured uplink authorization are deleted, or the PUSCH resources reported by the semi-static CSI are deleted, or all the running first-type timers are considered expired, and the N of all TAGs is maintained. TA At least one of .

[0270] As a sub-embodiment of this embodiment, when the RRC is always in an inactive state between the first timing advance and the first moment of the behavior application, the first buffer is not cleared at the first moment, or the RRC is notified to release the PUCCH, or the RRC is notified to release the SRS, or the configured downlink allocation and the configured uplink authorization are deleted, or the PUSCH resources reported by the semi-static CSI are deleted, or all the running first-type timers are considered expired, and the N of all TAGs is maintained. TA At least one of .

[0271] As an embodiment, the behavior determines whether to perform an action at a first moment according to at least an RRC state, including:

[0272] When the RRC connection state is always maintained from the time when the first signaling is received from the behavior to the first moment, performing the one action at the first moment;

[0273] When the RRC is always in an inactive state from the time when the first signaling is received from the behavior to the first moment, the one action is not performed at the first moment.

[0274] As an embodiment, the behavior determines whether to perform an action at a first moment according to at least an RRC state, including:

[0275] When the RRC connection state is always maintained from the time when the first signaling is received from the behavior to the first moment, and the first parameter set is satisfied, performing the one action at the first moment;

[0276] When the RRC is always in an inactive state from the time when the first signaling is received from the behavior to the first moment, and the first parameter set is satisfied, the one action is not performed at the first moment.

[0277] As an embodiment, the behavior performs an action including: clearing the first buffer, or notifying the RRC to release the PUCCH, or notifying the RRC to release the SRS, or deleting the configured downlink allocation and the configured uplink authorization, or deleting the PUSCH resources reported by the semi-static CSI, or considering that all running first-class timers have expired, maintaining the N of all TAGs TA At least one of .

[0278] As an embodiment, the phrase that the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer includes: starting from the time the behavior receives the first signaling, the moment determined by a time interval equal to the first expiration value of the first timer is the first moment.

[0279] As an embodiment, the phrase "the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer" includes: the moment determined by a time interval greater than the first expiration value of the first timer starting from the time the behavior receives the first signaling is the first moment.

[0280] As an embodiment, the phrase "the time interval between the receipt of the first signaling by the behavior and the first moment is greater than or equal to the first expiration value of the first timer" includes: the time interval between the receipt of the first signaling by the behavior and the first moment is greater than the first expiration value of the first timer.

[0281] As an embodiment, the phrase that the time interval between the receipt of the first signaling by the behavior and the first moment is greater than or equal to the first expiration value of the first timer includes: the time interval between the receipt of the first signaling by the behavior and the first moment is equal to the first expiration value of the first timer.

[0282] As an embodiment, the first timer is a first type timer.

[0283] As a sub-embodiment of this embodiment, any timer in the first category of timers includes a timeAlignmentTimer.

[0284] As a sub-embodiment of this embodiment, a timer in the first type of timer includes the first timer.

[0285] As a sub-embodiment of this embodiment, any timer in the first category of timers is associated with a TAG.

[0286] As a sub-embodiment of this embodiment, one timer in the first category of timers is used to determine how long the MAC entity considers that the uplink timing of the service cell belonging to the TAG associated with the one timer is aligned.

[0287] As a sub-embodiment of this embodiment, during the operation of one timer in the first type of timer, the MAC entity considers that the uplink times of service cells belonging to a TAG are aligned, and the one timer is associated with the one TAG.

[0288] As a sub-embodiment of this embodiment, any timer in the first type of timers is used to maintain uplink time alignment.

[0289] As an embodiment, the first expiration value refers to the expiration value of the first timer.

[0290] As an embodiment, the first expiration value is the expiration value of the first timer configured through an RRC message.

[0291] As an embodiment, the first expiration value is configured through at least one of a SIB1 message, an RRCReconfiguration message, an RRCResume message, or an RRCSetup message.

[0292] As an embodiment, the first expiration value is configured through at least one of IE TAG-Config, or IEUplinkConfigCommon, or IE UplinkConfigCommonSIB, or IEServingCellConfigCommonSIB, or IE ServingCellConfigCommon, or IECellGroupConfig.

[0293] As an embodiment, the first expiration value is configured via a domain in an RRC message, and the name of the domain includes TimeAlignmentTimer.

[0294] As an embodiment, the first expiration value includes a positive integer number of time slots, and the time slot includes the time slot including a solt, or a subframe, or a radio frame, or a frame, or a plurality of OFDM (Orthogonal Frequency Division Multiplexing) symbols, or at least one of a plurality of SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols.

[0295] As an embodiment, one of the messages indicating the timing advance includes a physical layer message.

[0296] As an embodiment, the message indicating the timing advance includes a MAC layer message.

[0297] As an embodiment, the message indicating the timing advance includes an RRC layer message.

[0298] As an embodiment, one of the messages indicating the timing advance includes a MAC RAR.

[0299] As an embodiment, the message indicating the timing advance includes fallbackRAR.

[0300] As an embodiment, the message indicating the timing advance includes successRAR.

[0301] As an embodiment, the message indicating the timing advance includes a Timing AdvanceCommand MAC CE.

[0302] As an embodiment, the message indicating the timing advance includes an Absolute TimingAdvance Command MAC CE.

[0303] As an embodiment, the message indicating the timing advance includes a Timing Delta MAC CE.

[0304] As an embodiment, the message indicating the timing advance is a message carrying a Timing AdvanceCommand field.

[0305] As an embodiment, the phrase that no message indicating the timing advance is received between the time when the first signaling is received by the behavior and the first moment includes: no message carrying the Timing Advance Command field is received between the time when the first signaling is received by the behavior and the first moment.

[0306] As an embodiment, the phrase that no message indicating the timing advance is received between the time when the first signaling is received by the behavior and the first moment includes: no MAC RAR, fallbackRAR, successRAR, Timing Advance Command MACCE, Absolute Timing Advance Command MAC CE, or Timing Delta MAC CE is received between the time when the first signaling is received by the behavior and the first moment.

[0307] As an embodiment, the phrase does not receive any message indicating the timing advance between the time when the behavior receives the first signaling and the first moment includes: does not receive any message including the index value T between the time when the behavior receives the first signaling and the first moment A news.

[0308] As an embodiment, the phrase that no message indicating the timing advance is received between the first signaling received by the behavior and the first moment includes: no message used for calculating N is received between the first signaling received by the behavior and the first moment. TA news.

[0309] As an embodiment, as a response to the behavior receiving the first signaling, the first timer is started; the first timer is not restarted between the time when the behavior receives the first signaling and the first moment.

[0310] As an embodiment, as a response to the behavior receiving the first signaling, the first timer is abandoned; the first timer is not started or restarted between the behavior receiving the first signaling and the first moment.

[0311] As an embodiment, as a response to the behavior receiving the first signaling, the first timer is started; the first timer is restarted between the time when the behavior receives the first signaling and the first moment; the first timer is restarted between the time when the behavior receives the first signaling and the first moment is triggered by reasons other than the first signaling.

[0312] As an embodiment, in response to the behavior receiving the first signaling, starting the first timer is abandoned; the first timer is started or restarted between the time when the behavior receives the first signaling and the first moment; the first timer is started or restarted between the time when the behavior receives the first signaling and the first moment is triggered by reasons other than the first signaling.

[0313] As an embodiment, starting a timer includes: the value of the timer starts to be updated over time, and the timer includes the first timer or the second timer.

[0314] As an embodiment, starting a timer includes: the timer starts timing, and the timer includes the first timer or the second timer.

[0315] As an embodiment, starting a timer includes: the timer starts timing from 0, and the timer includes the first timer or the second timer.

[0316] As an embodiment, starting a timer includes: the timer continues timing from the value when it was last paused, and the timer includes the first timer or the second timer.

[0317] As an embodiment, starting a timer includes: stopping the timer and then starting the timer, the timer includes the first timer or the second timer.

[0318] As an embodiment, starting a timer includes: when the timer is running, setting the value of the timer to 0 and starting timing from 0, the timer includes the first timer or the second timer.

[0319] As an embodiment, starting a timer includes: when the timer is not running, the timer starts timing from 0, and the timer includes the first timer or the second timer.

[0320] As an embodiment, starting a timer includes: when the timer is not running, the timer continues timing from the value when it was last paused, and the timer includes the first timer or the second timer.

[0321] As an embodiment, the meaning of starting includes start.

[0322] As an embodiment, the start means including restart.

[0323] As an embodiment, the initiation means to start.

[0324] As an embodiment, the starting means to restart.

[0325] As an embodiment, the starting means including restarting.

[0326] As an embodiment, the starting means including restarting.

[0327] As an embodiment, stopping a timer includes: the timer does not continue timing.

[0328] As an embodiment, stopping a timer includes: the timer does not continue to run.

[0329] As an embodiment, a timer being running includes: after the timer is started, the timer is not stopped, and the timer is not expired, and the timer includes the first timer or the second timer.

[0330] As an embodiment, a timer is running, including: the value of the timer is not 0, and the timer includes the first timer or the second timer.

[0331] As an embodiment, a timer is running, including: the value of the timer is greater than 0 and the value of the timer is not greater than the expiration value of the timer, and the timer includes the first timer or the second timer.

[0332] As an embodiment, a timer is running, including: the value of the timer is greater than 0 and the value of the timer is less than the expiration value of the timer, and the timer includes the first timer or the second timer.

[0333] As an embodiment, a timer is running includes: the value of the timer is changing, and the timer includes the first timer or the second timer.

[0334] As an embodiment, a timer is running includes: the timer has not stopped timing, and the timer includes the first timer or the second timer.

[0335] As an embodiment, a timer is running includes: the timer has not expired, and the timer includes the first timer or the second timer.

[0336] As an embodiment, expiration of a timer includes: the continuous running time of the timer reaches the expiration value of the timer, and the timer includes the first timer or the second timer.

[0337] As an embodiment, expiration of a timer includes: the running time of the timer reaches the expiration value of the timer, and the timer includes the first timer or the second timer.

[0338] As an embodiment, when the running time of a timer reaches an expiration value of the timer, the timer expires, and the timer includes the first timer or the second timer.

[0339] As an embodiment, when the value of a timer is equal to the expiration value of the timer, the timer expires, and the timer includes the first timer or the second timer.

[0340] As an embodiment, when the value of a timer is greater than the expiration value of the timer, the timer expires, and the timer includes the first timer or the second timer.

[0341] As an embodiment, the expiration value refers to the maximum running time.

[0342] As an embodiment, the expiration value is configured via an RRC message.

[0343] As an embodiment, the expiration value is configured via an IE in an RRC message.

[0344] As an embodiment, the expiration value is configured via a field in an RRC message.

[0345] As an embodiment, the expiration value includes a positive integer number of time slots.

[0346] As an embodiment, the running time refers to continuous running time.

[0347] As an embodiment, the running time refers to non-continuous running time.

[0348] Example 2

[0349] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 Attached Figure 2A diagram of a network architecture 200 of a 5G NR (New Radio), LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) system is illustrated. The 5G NR or LTE network architecture 200 may be referred to as a 5G System (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting receiving node), or some other suitable term. gNB 203 provides an access point to 5GC / EPC 210 for UE 201. Examples of UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device.A person skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to 5GC / EPC210 via an S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is the control node that handles the signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet services 230. Internet services 230 include operator-corresponding Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem) and packet switching streaming services.

[0350] As an embodiment, the UE201 corresponds to the first node in the present application.

[0351] As an embodiment, the UE 201 is a user equipment (User Equipment, UE).

[0352] As an embodiment, the gNB203 corresponds to the second node in this application.

[0353] As an embodiment, the gNB203 is a base station device (BaseStation, BS).

[0354] As an embodiment, the gNB203 is a user equipment.

[0355] As an embodiment, the gNB203 is a relay.

[0356] As an embodiment, the gNB203 is a gateway.

[0357] As an embodiment, the user equipment supports transmission of a terrestrial network (Non-Terrestrial Network, NTN).

[0358] As an embodiment, the user equipment supports transmission of a non-terrestrial network (Terrestrial Network).

[0359] As an embodiment, the user equipment supports transmission in a network with a large delay difference.

[0360] As an embodiment, the user equipment supports dual connection (DC) transmission.

[0361] As an embodiment, the user equipment includes an aircraft.

[0362] As an embodiment, the user equipment includes a vehicle-mounted terminal.

[0363] As an embodiment, the user equipment includes a vessel.

[0364] As an embodiment, the user equipment includes an Internet of Things terminal.

[0365] As an embodiment, the user equipment includes a terminal of the industrial Internet of Things.

[0366] As an embodiment, the user equipment includes a device supporting low-latency and high-reliability transmission.

[0367] As an embodiment, the user equipment includes a test device.

[0368] As an embodiment, the user equipment includes a signaling tester.

[0369] As an embodiment, the user equipment includes an NB-IOT (Narrow Band Internet of Things) device.

[0370] As an embodiment, the user equipment includes an IAB (Integrated Access and Backhaul)-node.

[0371] As an embodiment, the user equipment includes an IAB-DU.

[0372] As an embodiment, the user equipment includes an IAB-MT.

[0373] As an embodiment, the base station device supports transmission in a non-terrestrial network.

[0374] As an embodiment, the base station device supports transmission in a network with a large delay difference.

[0375] As an embodiment, the base station device supports transmission of a terrestrial network.

[0376] As an embodiment, the base station device includes a macro cellular (Marco Cellular) base station.

[0377] As an embodiment, the base station device includes a micro cell base station.

[0378] As an embodiment, the base station device includes a pico cell (Pico Cell) base station.

[0379] As an embodiment, the base station device includes a home base station (Femtocell).

[0380] As an embodiment, the base station device includes a base station device that supports a large delay difference.

[0381] As an embodiment, the base station device includes a flying platform device.

[0382] As an embodiment, the base station device includes a satellite device.

[0383] As an embodiment, the base station device includes a TRP (Transmitter Receiver Point).

[0384] As an embodiment, the base station device includes a CU (Centralized Unit).

[0385] As an embodiment, the base station device includes a DU (Distributed Unit).

[0386] As an embodiment, the base station device includes a testing device.

[0387] As an embodiment, the base station equipment includes a signaling tester.

[0388] As an embodiment, the base station device includes an IAB-node.

[0389] As an embodiment, the base station device includes an IAB-donor.

[0390] As an embodiment, the base station device includes an IAB-donor-CU.

[0391] As an embodiment, the base station device includes an IAB-donor-DU.

[0392] As an embodiment, the base station device includes an IAB-DU.

[0393] As an embodiment, the base station device includes IAB-MT.

[0394] As an embodiment, the relay includes a relay.

[0395] As an embodiment, the relay includes an L3 relay.

[0396] As an embodiment, the relay includes an L2 relay.

[0397] As an embodiment, the relay includes a router.

[0398] As an embodiment, the relay includes a switch.

[0399] As an embodiment, the relay includes a user equipment.

[0400] As an embodiment, the relay includes a base station device.

[0401] Example 3

[0402] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture for the control plane 300 is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY 301 herein. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides inter-zone mobility support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and using RRC signaling to configure lower layers. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). In the user plane 350, the radio protocol architecture is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity.

[0403] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0404] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0405] As an embodiment, the first signaling in the present application is generated in the RRC306.

[0406] As an embodiment, the first signaling in the present application is generated by the MAC302 or MAC352.

[0407] As an embodiment, the first signaling in the present application is generated in the PHY301 or PHY351.

[0408] As an embodiment, the first message in the present application is generated in the RRC306.

[0409] As an embodiment, the first message in the present application is generated by the MAC302 or MAC352.

[0410] As an embodiment, the first message in the present application is generated by the PHY301 or PHY351.

[0411] As an embodiment, the second message set in the present application is generated in the RRC306.

[0412] As an embodiment, the second message set in the present application is generated in the PDCP304 or PDCP354.

[0413] As an embodiment, the second message set in the present application is generated in the RLC303 or RLC353.

[0414] As an embodiment, the second message set in the present application is generated by the MAC302 or MAC352.

[0415] As an embodiment, the second message set in the present application is generated in the PHY301 or PHY351.

[0416] Example 4

[0417] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0418] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0419] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0420] In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0421] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0422] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0423] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0424] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: receives a first signaling, the first signaling is used to determine a first timing advance; determines whether to clear the first buffer at the first moment according to at least an RRC state; wherein the time interval between the receipt of the first signaling by the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between the receipt of the first signaling by the behavior and the first moment; the behavior determines whether to clear the first buffer at the first moment according to at least an RRC state, including: when the RRC connection state is always in the period from the receipt of the first signaling by the behavior to the first moment, the first buffer is cleared at the first moment; when the RRC inactive state is always in the period from the receipt of the first signaling by the behavior to the first moment, the first buffer is not cleared at the first moment.

[0425] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first signaling, the first signaling being used to determine a first timing advance; determining whether to clear the first buffer at the first moment based on at least an RRC state; wherein the time interval between receiving the first signaling from the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between receiving the first signaling from the behavior and the first moment; the behavior determining whether to clear the first buffer at the first moment based on at least an RRC state includes: when the RRC connection state is always in the period from receiving the first signaling from the behavior to the first moment, clearing the first buffer at the first moment; when the RRC inactive state is always in the period from receiving the first signaling from the behavior to the first moment, not clearing the first buffer at the first moment.

[0426] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 at least: sends a first signaling, the first signaling is used to determine a first timing advance; wherein, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval between when the first signaling is received at the first moment is greater than or equal to the first expiration value of the first timer; any message indicating the timing advance is not received between when the first signaling is received at the first moment; the phrase whether the first buffer is cleared at the first moment is determined according to at least an RRC state includes: when the RRC connection state is always in the first moment since the first signaling is received at the first moment, the first buffer is cleared at the first moment; when the RRC inactive state is always in the first moment since the first signaling is received at the first moment, the first buffer is not cleared at the first moment.

[0427] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first signaling, the first signaling being used to determine a first timing advance; wherein, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval between when the first signaling is received and the first moment is greater than or equal to the first expiration value of the first timer; any message indicating the timing advance has not been received since the first signaling was received and the first moment; the phrase whether the first buffer is cleared at the first moment is determined according to at least an RRC state including: when the RRC connection state is always in the RRC connection state from when the first signaling is received to the first moment, the first buffer is cleared at the first moment; when the RRC inactive state is always in the RRC inactive state from when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

[0428] As an embodiment, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive the first signaling; and at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send the first signaling.

[0429] As an embodiment, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive a first message; and at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a first message.

[0430] As an implementation, the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 are used to send a second set of messages; and at least one of the antenna 420, the receiver 418, the receive processor 470, and the controller / processor 475 is used to receive a second set of messages.

[0431] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0432] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0433] As an embodiment, the first communication device 450 is a user equipment.

[0434] As an embodiment, the first communication device 450 is a user equipment supporting a large delay difference.

[0435] As an embodiment, the first communication device 450 is a user equipment supporting NTN.

[0436] As an embodiment, the first communication device 450 is an aircraft device.

[0437] As an embodiment, the first communication device 450 has a positioning capability.

[0438] As an embodiment, the first communication device 450 does not have a fixed energy capability.

[0439] As an embodiment, the first communication device 450 is a user equipment supporting TN.

[0440] As an embodiment, the second communication device 410 is a base station device (gNB / eNB / ng-eNB).

[0441] As an embodiment, the second communication device 410 is a base station device supporting a large delay difference.

[0442] As an embodiment, the second communication device 410 is a base station device supporting NTN.

[0443] As an embodiment, the second communication device 410 is a satellite device.

[0444] As an embodiment, the second communication device 410 is a flying platform device.

[0445] As an embodiment, the second communication device 410 is a base station device supporting TN.

[0446] Example 5

[0447] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0448] for First node U01 In step S5101, a first signaling is received; in step S5102, a first timing advance is applied as a response to the behavior receiving the first signaling; in step S5103, a first timer is started as a response to the behavior receiving the first signaling; in step S5104, a first message is received; in step S5105, a first timer is started as a response to the behavior receiving the first message; in step S5106, a first buffer is determined at a first moment according to at least an RRC state; when the behavior is always in an RRC connected state from the time the behavior receives the first signaling to the first moment, the first timer is entered. Step S5107, otherwise, proceed to step S5108; in step S5107, clear the first buffer at the first moment; in step S5108, when the RRC is always inactive from the time the first signaling is received by the behavior to the first moment, proceed to step S5109, otherwise, proceed to step S5110; in step S5109, do not clear the first buffer at the first moment; in step S5110, perform the first action; in step S5111, receive the first message; in step S5112, start the first timer as a response to the behavior receiving the first message.

[0449] for Second node N02 In step S5201, the first signaling is sent; in step S5202, the first message is sent; in step S5203, the first message is sent.

[0450] In Example 5, the first signaling is used to determine a first timing advance; the time interval between receiving the first signaling from the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between receiving the first signaling from the behavior and the first moment; the running time of the first timer between receiving the first signaling from the behavior and the first moment reaches the first expiration value of the first timer; and the first message is used for the transition of the RRC state.

[0451] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on at least the RRC state, including: when the RRC connection state is always in the period from the receipt of the first signaling by the behavior to the first moment, the first buffer is cleared at the first moment; when the RRC inactive state is always in the period from the receipt of the first signaling by the behavior to the first moment, the first buffer is not cleared at the first moment.

[0452] As an embodiment, the running time of the first timer between the receiving of the first signaling by the behavior and the first moment reaches the first expiration value of the first timer.

[0453] As an embodiment, in response to receiving the first signaling as the behavior, starting the first timer is abandoned.

[0454] As an embodiment, the phrase as a response to the behavior receiving the first signaling includes: when the first signaling is received.

[0455] As an embodiment, the phrase as a response to the behavior receiving the first signaling includes: upon receiving the first signaling.

[0456] As an embodiment, the phrase as a response to the behavior of receiving the first signaling includes: after receiving the first signaling.

[0457] As an embodiment, the sentence "as a response to the behavior receiving the first signaling, applying the first timing advance and starting the first timer" includes: the behavior receiving the first signaling triggers the behavior to apply the first timing advance and the behavior starts the first timer.

[0458] As an embodiment, the sentence "as a response to the behavior receiving the first signaling, applying the first timing advance and starting the first timer" includes: the behavior applying the first timing advance and the behavior starting the first timer are behaviors when or after the behavior receives the first signaling.

[0459] As an embodiment, the behavior of applying the first timing advance includes: adjusting the uplink timing according to the first timing advance.

[0460] As an embodiment, the behavior of applying the first timing advance includes: adjusting the uplink transmission timing according to the first timing advance.

[0461] As an embodiment, the behavior of applying the first timing advance includes: adjusting the uplink sending time according to the first timing advance.

[0462] As an embodiment, the behavior of applying the first timing advance includes: obtaining N in Section 4.2 of TS 38.213 according to the first timing advance. TA_new .

[0463] As an embodiment, the behavior of applying the first timing advance includes: obtaining N in Section 4.2 of TS 38.213 according to the first timing advance. TA .

[0464] As an embodiment, the phrase that the running time of the first timer reaches the first expiration value of the first timer between the behavior receiving the first signaling and the first moment includes: at the first moment, the first timer expires.

[0465] As an embodiment, the phrase that the running time of the first timer reaches the first expiration value of the first timer between the behavior receiving the first signaling and the first moment includes: before the first moment, the first timer expires.

[0466] As an embodiment, the phrase "the running time of the first timer between the behavior receiving the first signaling and the first moment reaches the first expiration value of the first timer" includes: the first timer is started between the behavior receiving the first signaling and the first moment, and the first timer expires between the behavior receiving the first signaling and the first moment.

[0467] As an embodiment, the sentence "the time interval between the receipt of the first signaling by the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between the receipt of the first signaling by the behavior and the first moment; the running time of the first timer between the receipt of the first signaling by the behavior and the first moment reaches the first expiration value of the first timer" includes: between the receipt of the first signaling by the behavior and the first moment, the first timer is started and continues to run until the first timer expires.

[0468] As an embodiment, the first moment includes the moment when the first timer expires.

[0469] As an embodiment, the first moment includes the moment of giving up clearing the first buffer after the first timer expires.

[0470] As an embodiment, the first moment includes the moment of giving up clearing the first buffer after the first timer expires.

[0471] As an embodiment, the first message is transmitted via an air interface.

[0472] As an embodiment, the first message is sent through an antenna port.

[0473] As an embodiment, the first message is transmitted via high-layer signaling.

[0474] As an embodiment, the first message is transmitted via higher layer signaling.

[0475] As an embodiment, the first message includes a downlink signal.

[0476] As an embodiment, the first message includes a side-link signal.

[0477] As an embodiment, the first message includes all or part of the high-level signaling.

[0478] As an embodiment, the first message includes all or part of higher layer signaling.

[0479] As an embodiment, the first message includes message 4 (Message 4, Msg4).

[0480] As an embodiment, the first message includes a part of message B (Message B, MsgB).

[0481] As an embodiment, the first message includes an RRC message.

[0482] As an embodiment, the first message includes all or part of the IE of the RRC message.

[0483] As an embodiment, the first message includes all or part of the fields in an IE of an RRC message.

[0484] As an embodiment, the signaling radio bearer (SRB) of the first message includes SRB1.

[0485] As an embodiment, the first message includes a DCCH (Common Control Channel) message.

[0486] As an embodiment, the first message includes a RRCResume message.

[0487] As an embodiment, the first message includes an RRCSetup message.

[0488] As an embodiment, the first message includes an RRCReject message.

[0489] As an embodiment, the first message includes a RRCRelease message.

[0490] As an embodiment, the first message does not include a RRCRelease message.

[0491] As an embodiment, the first message includes an RRC EarlyDataComplete message.

[0492] As an embodiment, the first message does not include a RRC EarlyDataComplete message.

[0493] As an embodiment, the name of the first message includes at least one of RRC or Connection or Resume or Release or Resume or RRCReject or Setup or Reconfiguration or Complete or sdt or idt or Inactive or Small or Data or Transmission.

[0494] As an embodiment, the name of the second message set includes at least one of RRC or Resume or sdt or idt or Inactive or Small or Data or Transmission or Request.

[0495] As an embodiment, the sentence "as a response to the behavior receiving a first message, starting the first timer" includes: the behavior starting the first timer is triggered by the behavior receiving the first message.

[0496] As an embodiment, the sentence "as a response to the behavior receiving the first message, starting the first timer" includes: when the first message is received, starting the first timer is triggered.

[0497] As an embodiment, the sentence "as a response to the behavior receiving the first message, starting the first timer" includes: the behavior starting the first timer is an action triggered by the behavior receiving the first message.

[0498] As an embodiment, the sentence "as a response to the behavior receiving the first message, starting the first timer" includes: as a response to the behavior receiving the first message, the RRC layer of the first node sends a notification to the MAC layer of the first node, and when the MAC of the first node receives the notification, the first timer is started.

[0499] As an embodiment, the sentence "as a response to the behavior receiving the first message, starting the first timer" includes: as a response to the behavior receiving the first message, the RRC layer of the first node instructs the MAC layer of the first node to start the first timer.

[0500] As an embodiment, the phrase that the first message is used for the transition of the RRC state includes: the first message is used to transition the first node from the RRC connected state to the RRC inactive state.

[0501] As an embodiment, the phrase that the first message is used for the transition of the RRC state includes: the first message is used to transition the first node from the RRC inactive state to the RRC connected state.

[0502] As an embodiment, the phrase that the first message is used for the transition of the RRC state includes: the first message is used to transition from one RRC state to another RRC state.

[0503] As an embodiment, the phrase that the first message is used for the transition of the RRC state includes: receiving the first message triggers the transition of the RRC state.

[0504] As an embodiment, the behavior of performing the first action includes: clearing the first buffer at the first moment.

[0505] As an embodiment, the behavior of performing the first action includes: not clearing the first buffer at the first moment.

[0506] As an embodiment, as a response to the behavior receiving the first message, the first timer is started; the expiration value of the first timer is the first expiration value.

[0507] As an embodiment, as a response to the behavior receiving the first message, the first timer is started; the expiration value of the first timer is the second expiration value.

[0508] As an embodiment, the dashed box F5.1 is optional.

[0509] As an embodiment, the dashed box F5.1 exists.

[0510] As an embodiment, the dotted box F5.1 does not exist.

[0511] As an embodiment, the dashed box F5.2 is optional.

[0512] As an embodiment, the dashed box F5.2 exists.

[0513] As an embodiment, the dotted box F5.2 does not exist.

[0514] Example 6

[0515] Embodiment 6 illustrates a wireless signal transmission flow chart according to another embodiment of the present application, as shown in the attached Figure 6 It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0516] for First node U01 In step S6101, a first signaling is received; in step S6102, as a response to the behavior receiving the first signaling, the first timer is abandoned; in step S6103, a first message is received; in step S6104, as a response to the behavior receiving the first message, the first timer is started; in step S6105, it is determined whether to clear the first buffer at the first moment according to at least the RRC state; when the RRC connection state is always maintained from the time when the behavior receives the first signaling to the first moment, step S6106 is entered; otherwise, step S6107 is entered. 107; in step S6106, clear the first buffer at the first moment; in step S6107, when the RRC is always inactive from the time the behavior receives the first signaling to the first moment, enter step S6108, otherwise, enter step S6109; in step S6108, do not clear the first buffer at the first moment; in step S6109, perform the first action; in step S6110, receive the first message; in step S6111, start the first timer as a response to the behavior receiving the first message.

[0517] for Second node N02In step S6201, the first signaling is sent; in step S6202, the first message is sent; in step S6203, the first message is sent.

[0518] In Example 6, the first signaling is used to determine a first timing advance; the time interval between receiving the first signaling from the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between receiving the first signaling from the behavior and the first moment; and the first message is used for the transition of the RRC state.

[0519] As an embodiment, in response to receiving the first signaling as the behavior, starting the first timer is abandoned.

[0520] As an embodiment, in response to receiving the first signaling as described behavior, applying the first timing advance is abandoned, and starting the first timer is abandoned.

[0521] As an embodiment, in response to receiving the first signaling as the behavior, the first timing advance is applied and starting the first timer is abandoned.

[0522] As an embodiment, the behavior of giving up starting the first timer is used to determine that the first timer has not expired at the first moment, and the first timer not expiring at the first moment is used to determine that the first buffer is not cleared at the first moment.

[0523] As an embodiment, the first timing advance is applied in response to receiving the first signaling as described behavior.

[0524] As an embodiment, in response to receiving the first signaling as described behavior, the application of the first timing advance is abandoned.

[0525] As an embodiment, in response to receiving the first signaling as described behavior, applying the first timing advance is abandoned, and starting the first timer is abandoned.

[0526] As an embodiment, the behavior of abandoning the application of the first timing advance includes: not applying the first timing advance.

[0527] As an embodiment, the behavior of abandoning the application of the first timing advance includes: ignoring the first timing advance.

[0528] As an embodiment, the behavior of abandoning the application of the first timing advance includes: ignoring the received Timing Advance Command.

[0529] As an embodiment, the behavior of giving up starting the first timer includes: not starting the first timer.

[0530] As an embodiment, the behavior of giving up starting the first timer includes: the first timer does not start timing.

[0531] As an embodiment, the behavior of giving up starting the first timer includes: the state of the first timer remains unchanged.

[0532] As an embodiment, the dashed box F6.1 is optional.

[0533] As an embodiment, the dashed box F6.1 exists.

[0534] As an embodiment, the dotted box F6.1 does not exist.

[0535] As an embodiment, the dashed box F6.2 is optional.

[0536] As an embodiment, the dashed box F6.2 exists.

[0537] As an embodiment, the dotted box F6.2 does not exist.

[0538] Example 7

[0539] Embodiment 7 illustrates a wireless signal transmission flow chart according to another embodiment of the present application, as shown in the attached Figure 7 It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0540] for First node U01In step S7101, a first signaling is received; in step S7102, a first timing advance is applied as a response to the behavior receiving the first signaling; in step S7103, a first timer is started as a response to the behavior receiving the first signaling; in step S7104, the first timer is abandoned as a response to the behavior receiving the first signaling; in step S7105, a second timer is started as a response to the behavior receiving the first signaling; in step S7106, whether to clear the first buffer at the first moment is determined according to at least the RRC state; when the behavior is always in the RRC connection state from the time the behavior receives the first signaling to the first moment, step S7107 is entered; otherwise, step S 7108; in step S7107, clear the first buffer at the first moment; in step S7108, determine whether to clear the first buffer at the first moment according to whether at least the second timer is running; when the second timer is running, enter step S7109, otherwise enter step S7112; in step S7109, when the RRC is always inactive from the time when the first signaling is received from the behavior to the first moment, enter step S7110, otherwise, enter step S7111; in step S7110, do not clear the first buffer at the first moment; in step S7111, perform the first action; in step S7112, perform the second action.

[0541] for Second node N02 , in step S7201, the first signaling is sent.

[0542] In Example 7, the first signaling is used to determine a first timing advance; the time interval between receiving the first signaling from the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between receiving the first signaling from the behavior and the first moment; the first message is used for the transition of the RRC state; and the second timer is different from the first timer.

[0543] As an embodiment, as a response to the behavior receiving the first signaling, the first timing advance is applied and the first timer is started; wherein, the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0544] As an embodiment, as a response to receiving the first signaling as described behavior, the second timer is started or restarted.

[0545] As an embodiment, when an RRCRelease message is received, and the RRCRelease message carries the configuration of the pre-configured resources and configures the second timer, the RRC layer gives an indication to the MAC layer, and the MAC layer starts the second timer according to the indication of the RRC layer.

[0546] As an embodiment, when an RRCConnectionRelease message is received, and the RRCConnectionRelease message carries the configuration of the pre-configured resources and the second timer is configured, the RRC layer of the first node gives an indication to the MAC layer of the first node, and the MAC layer of the first node starts the second timer according to the indication of the RRC layer of the first node.

[0547] As an embodiment, the RRC layer of the first node verifies that the timing advance related to the pre-configured resources is valid, sends a valid indication to the MAC layer of the first node, and when the MAC layer of the first node receives the valid indication, starts or restarts the second timer.

[0548] As a sub-embodiment of this embodiment, whether the timing advance associated with the pre-configured resources is valid is related to at least one of the change in RSRP (Reference Signal Received Power), or the mapping relationship between the SS (Synchronization Signal) / PBCH (Physical broadcast channel) block (Block), or SSB (SS / PBCH block) and the pre-configured resources, or whether the second timer is running.

[0549] As a sub-embodiment of this embodiment, the RRC layer of the first node verifies that the timing advance related to the pre-configured resources is valid based on at least one of the change in RSRP, the mapping relationship between SSB and the pre-configured resources, or whether the second timer is running.

[0550] As a sub-embodiment of this embodiment, when compared with the RSRP when the timing advance associated with the pre-configured resources was last verified, the increase in RSRP does not exceed a first threshold, the decrease in RSRP does not exceed a second threshold, and the second timer is running, the timing advance associated with the pre-configured resources is valid.

[0551] As a subsidiary embodiment of this sub-embodiment, the RSRP refers to the RSRP of a cell.

[0552] As a subsidiary embodiment of this sub-embodiment, the RSRP refers to the RSRP of an SSB to which the pre-configured resources are mapped.

[0553] As a sub-embodiment of this embodiment, when compared with the RSRP when the timing advance associated with the pre-configured resources was last verified, the increase in RSRP does not exceed a first threshold, the decrease in RSRP does not exceed a second threshold, the SSB to which the pre-configured resources are mapped does not have a beam failure, and the second timer is running, the timing advance associated with the pre-configured resources is valid.

[0554] As a sub-embodiment of this embodiment, when the SSB to which the pre-configured resources are mapped does not experience beam failure and the second timer is running, the timing advance associated with the pre-configured resources is valid.

[0555] As an embodiment, the second timer is used for the second type SDT process.

[0556] As an embodiment, the second timer is running and the second timer is effectively used to initiate the second type SDT process.

[0557] As an embodiment, the second timer is used to determine whether a data packet can be sent in an RRC inactive state using the preconfigured resources, and the data packet is associated with one or more DRBs.

[0558] As an embodiment, the name of the second timer includes -timeAlignmentTimer.

[0559] As an embodiment, the second timer includes CG-timeAlignmentTimer.

[0560] As an embodiment, the second timer includes an inactive-timeAlignmentTimer.

[0561] As an embodiment, the second timer includes sdt-timeAlignmentTimer.

[0562] As an embodiment, the second timer includes cg-timeAlignmentTimer.

[0563] As an embodiment, the second timer includes ConfiguredGrant-timeAlignmentTimer.

[0564] As an embodiment, the second timer includes sps-timeAlignmentTimer

[0565] As an embodiment, the second timer includes a pur-timeAlignmentTimer.

[0566] As an embodiment, the second timer includes cs-timeAlignmentTimer.

[0567] As an embodiment, the second timer includes icg-timeAlignmentTimer.

[0568] As an embodiment, when the second timer is running, if PUSCH is transmitted on the preconfigured resources, the PDCCH is scrambled by the first RNTI.

[0569] As a sub-embodiment of this embodiment, the first RNTI is a C-RNTI (Cell Radio Network Temporary Identifier).

[0570] As a sub-embodiment of this embodiment, the first RNTI is only used for transmission on the pre-configured resources.

[0571] As a sub-embodiment of this embodiment, the first RNTI is used for the SDT process.

[0572] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running at the first moment.

[0573] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to whether at least the second timer is running includes:

[0574] While the second timer is running, the first buffer is not cleared at the first time.

[0575] When the second timer is not running, the first buffer is cleared at the first moment.

[0576] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to whether at least the second timer is running and the behavior of determining whether to clear the first buffer at the first moment according to at least the RRC state means: determining whether to clear the first buffer at the first moment according to at least the RRC state and whether the second timer is running.

[0577] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on at least the RRC state and whether the second timer is running, including: when the second timer is running and is in an RRC inactive state from the time the behavior receives the first signaling to the first moment, the first buffer is not cleared at the first moment.

[0578] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on at least the RRC state and whether the second timer is running, including: when the second timer is running and the RRC connection state is always in place from the time the behavior receives the first signaling to the first moment, clearing the first buffer at the first moment.

[0579] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on at least the RRC state and whether the second timer is running, including: when the second timer is not running and the RRC connection state is always in place from the time the behavior receives the first signaling to the first moment, clearing the first buffer at the first moment.

[0580] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on at least the RRC state and whether the second timer is running, including: when the second timer is not running and is in an RRC inactive state from the time the behavior receives the first signaling to the first moment, clearing the first buffer at the first moment.

[0581] As an embodiment, the phrase the second timer is different from the first timer includes: the first timer and the second timer are not the same timer.

[0582] As an embodiment, the phrase “the second timer is different from the first timer” includes: an expiration value of the first timer and an expiration value of the second timer are different.

[0583] As an embodiment, the phrase that the second timer is different from the first timer includes: the names of the first timer and the second timer are different.

[0584] As an embodiment, the phrase that the second timer is different from the first timer includes: the conditions under which the first timer and the second timer are started, stopped, or expired are different.

[0585] As an embodiment, when the second timer is running, as a response to the behavior receiving the first message, the second expiration value of the first timer is determined according to the second timer.

[0586] As an embodiment, the behavior of performing the second action includes: clearing the first buffer at the first moment.

[0587] As an embodiment, the behavior of performing the second action includes: not clearing the first buffer at the first moment.

[0588] As an embodiment, the dashed box F7.1 is optional.

[0589] As an embodiment, the dashed box F7.1 exists.

[0590] As an embodiment, the dotted box F7.1 does not exist.

[0591] As an embodiment, the dashed box F7.2 is optional.

[0592] As an embodiment, the dashed box F7.2 exists.

[0593] As an embodiment, the dotted box F7.2 does not exist.

[0594] As an embodiment, the dashed box F7.3 is optional.

[0595] As an embodiment, the dashed box F7.3 exists.

[0596] As an embodiment, the dotted box F7.3 does not exist.

[0597] As an embodiment, one of the dotted box F7.2 and the dotted box F7.3 does not exist.

[0598] As a sub-embodiment of this embodiment, the dotted box F7.2 exists, and the dotted box F7.3 does not exist.

[0599] As a sub-embodiment of this embodiment, the dotted line box F7.2 does not exist, and the dotted line box F7.3 exists.

[0600] Example 8

[0601] Embodiment 8 illustrates a schematic diagram of giving up starting the first timer when receiving the first signaling according to an embodiment of the present application, as shown in the attached figure. Figure 8 As shown in the attached Figure 8 In the figure, the horizontal axis indicates time; T8.1 and T8.2 are two moments increasing in time.

[0602] In Example 8, at the T8.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, starting the first timer is abandoned; wherein the time interval from the behavior receiving the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; and no message indicating the timing advance is received from the behavior receiving the first signaling to the first moment.

[0603] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0604] As an embodiment, the T8.2 moment includes the first moment.

[0605] As an embodiment, the first timer is not started between the first signaling received by the behavior and the first moment.

[0606] As an embodiment, the time interval between the T8.1 time and the T8.2 time is equal to the first expiration value.

[0607] Example 9

[0608] Embodiment 9 illustrates a schematic diagram of starting a first timer when receiving a first signaling according to an embodiment of the present application, as shown in the attached Fig. 9 As shown in the attached Fig. 9 In the figure, the horizontal axis indicates time; T9.1 and T9.2 are two moments increasing in time; the diamond-filled box indicates the running time of the first timer.

[0609] In Example 9, at the T9.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, the first timing advance is applied, and the first timer is started; wherein the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the time the behavior receives the first signaling to the first moment; and the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0610] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0611] As an embodiment, the T9.2 moment includes the first moment.

[0612] As an embodiment, at the first moment, the first timer expires.

[0613] As an embodiment, before the first moment, the first timer expires.

[0614] As an embodiment, the time interval between the T9.1 moment and the T9.2 moment is equal to the first expiration value.

[0615] As an embodiment, the RRC is always in an inactive state from the time when the first signaling is received in the behavior to the first moment.

[0616] As an embodiment, when the first timer expires, the first buffer is not cleared.

[0617] Example 10

[0618] Embodiment 10 illustrates a schematic diagram of starting a second timer when receiving a first signaling according to an embodiment of the present application, as shown in the attached figure. Fig.10 As shown in the attached Fig.10 In the figure, the horizontal axis indicates time; T10.1 and T10.2 are two moments increasing in time; the box filled with slashes indicates the running time of the second timer.

[0619] In Example 10, at the T10.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, starting the first timer is abandoned; as a response to the behavior receiving the first signaling, a second timer is started; wherein, the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the time the behavior receives the first signaling to the first moment; and the second timer is different from the first timer.

[0620] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0621] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running.

[0622] As an embodiment, the T10.2 moment includes the first moment.

[0623] As an embodiment, the first timer is not started between the first signaling received by the behavior and the first moment.

[0624] As an embodiment, at the time T10.2, the second timer is running.

[0625] As an embodiment, at the time T10.2, the second timer is not running.

[0626] As an embodiment, the time interval between the time T10.1 and the time T10.2 is equal to the first expiration value.

[0627] Embodiment 11

[0628] Embodiment 11 illustrates a schematic diagram of starting a first timer and a second timer when receiving a first signaling according to an embodiment of the present application, as shown in the attached figure. Fig.11 As shown in the attached Fig.11 In the figure, the horizontal axis indicates time; T11.1 and T11.2 are two moments increasing in time; the diamond-filled box indicates the running time of the first timer; the oblique-line-filled box indicates the running time of the second timer.

[0629] In Example 11, at the T11.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, the first timing advance is applied, and the first timer is started; as a response to the behavior receiving the first signaling, a second timer is started; wherein, the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the time the behavior receives the first signaling to the first moment; the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer; and the second timer is different from the first timer.

[0630] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0631] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running.

[0632] As an embodiment, the T11.2 moment includes the first moment.

[0633] As an embodiment, at the first moment, the first timer expires.

[0634] As an embodiment, before the first moment, the first timer expires.

[0635] As an embodiment, at the time T11.2, the second timer is running.

[0636] As an embodiment, at the time T11.2, the second timer is not running.

[0637] As an embodiment, the time interval between the time T11.1 and the time T11.2 is equal to the first expiration value.

[0638] Example 12

[0639] Embodiment 12 illustrates a schematic diagram of starting a first timer when receiving a first message according to an embodiment of the present application, as shown in the attached figure. Fig.12 As shown in the attached Fig.12 In the figure, the horizontal axis indicates time; T12.1, T12.2, T12.3 and T12.4 are four moments increasing in time; the diamond-filled box indicates the running time of the first timer; the oblique-line-filled box indicates the running time of the second timer.

[0640] In Example 12, at the T12.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, the first timer is abandoned; as a response to the behavior receiving the first signaling, the second timer is started; at T12.2 moment, a first message is received; as a response to the behavior receiving the first message, the first timer is started; wherein the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the time the behavior receives the first signaling to the first moment; the second timer is different from the first timer; and the first message is used for the transition of the RRC state.

[0641] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0642] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running.

[0643] As an embodiment, the first timer is started between the time when the behavior receives the first signaling and the first moment.

[0644] As an embodiment, at the first moment, the first timer is running.

[0645] As an embodiment, the T12.3 moment includes the first moment.

[0646] As an embodiment, at the time T12.4, the first timer expires.

[0647] As an embodiment, at the time T12.4, the second timer is running.

[0648] As an embodiment, at the time T12.4, the second timer is not running.

[0649] As an embodiment, the time interval between the T12.1 moment and the T12.3 moment is equal to the first expiration value.

[0650] As an embodiment, the time interval between the T12.2 moment and the T12.4 moment is equal to the first expiration value.

[0651] As an embodiment, the time interval between the T12.2 time and the T12.4 time is equal to the second expiration value.

[0652] As an embodiment, the dotted box F12 is optional.

[0653] As an embodiment, the termination time of the second timer in the dotted box F12 is earlier than the T12.4 time.

[0654] As an embodiment, the termination time of the second timer in the dotted box F12 is later than the T12.4 time.

[0655] As an embodiment, the termination time of the second timer in the dotted box F12 is equal to the T12.4 time.

[0656] Embodiment 13

[0657] Embodiment 13 illustrates a schematic diagram of starting a first timer when receiving a first message according to another embodiment of the present application, as shown in the attached figure. Fig.13 As shown in the attached Fig.13 In the figure, the horizontal axis indicates time; T13.1, T13.2, T13.3 and T13.4 are four moments increasing in time; the diamond-filled box indicates the running time of the first timer; the oblique-line-filled box indicates the running time of the second timer.

[0658] In Example 13, at the T13.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, the first timing advance is applied and the first timer is started; as a response to the behavior receiving the first signaling, the second timer is started; at the T13.2 moment, a first message is received; as a response to the behavior receiving the first message, the first timer is started; it is determined whether to clear the first buffer at the first moment based on at least the RRC state; it is determined whether to clear the first buffer at the first moment based on at least whether the second timer is running; wherein the time interval from the receipt of the first signaling by the behavior to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the receipt of the first signaling by the behavior to the first moment; the running time of the first timer from the receipt of the first signaling by the behavior to the first moment reaches the first expiration value of the first timer; the second timer is different from the first timer; the first message is used for the transition of the RRC state.

[0659] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0660] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running.

[0661] As an embodiment, at the first moment, the first timer is running.

[0662] As an embodiment, the T13.3 moment includes the first moment.

[0663] As an embodiment, at the time T13.4, the first timer expires.

[0664] As an embodiment, at the time T13.4, the second timer is running.

[0665] As an embodiment, at the time T13.4, the second timer is not running.

[0666] As an embodiment, the time interval between the T13.1 moment and the T13.3 moment is equal to the first expiration value.

[0667] As an embodiment, the time interval between the T13.2 moment and the T13.4 moment is equal to the first expiration value.

[0668] As an embodiment, the time interval between the T13.2 moment and the T13.4 moment is equal to the second expiration value.

[0669] As an embodiment, the dotted box F13 is optional.

[0670] As an embodiment, the termination time of the second timer in the dotted box F13 is earlier than the T13.4 time.

[0671] As an embodiment, the termination time of the second timer in the dotted box F13 is later than the T13.4 time.

[0672] As an embodiment, the termination time of the second timer in the dotted box F13 is equal to the T13.4 time.

[0673] Embodiment 14

[0674] Embodiment 14 illustrates a schematic diagram of starting a first timer when receiving a first message according to another embodiment of the present application, as shown in the attached figure. Fig.14 As shown in the attached Fig.14 In the figure, the horizontal axis indicates time; T14.1, T14.2, T14.3 and T14.4 are four moments increasing in time; the diamond-filled box indicates the running time of the first timer; the oblique-line-filled box indicates the running time of the second timer.

[0675] In Example 14, at time T14.1, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, the first timer is abandoned; as a response to the behavior receiving the first signaling, a second timer is started; at time T14.3, a first message is received; as a response to the behavior receiving the first message, the first timer is started; wherein the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the time the behavior receives the first signaling to the first moment; the second timer is different from the first timer; and the first message is used for the transition of the RRC state.

[0676] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0677] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running.

[0678] As an embodiment, the T14.3 moment includes the first moment.

[0679] As an embodiment, at the time T14.4, the first timer expires.

[0680] As an embodiment, at the time T14.4, the second timer is running.

[0681] As an embodiment, at the time T14.4, the second timer is not running.

[0682] As an embodiment, the time interval between the T14.1 moment and the T14.2 moment is equal to the first expiration value.

[0683] As an embodiment, the time interval between the T14.3 moment and the T14.4 moment is equal to the first expiration value.

[0684] As an embodiment, the time interval between the T14.3 moment and the T14.4 moment is equal to the second expiration value.

[0685] As an embodiment, the dotted box F14 is optional.

[0686] As an embodiment, the termination time of the second timer in the dotted box F14 is earlier than the T14.4 time.

[0687] As an embodiment, the termination time of the second timer in the dotted box F14 is later than the T14.4 time.

[0688] As an embodiment, the termination time of the second timer in the dotted box F14 is equal to the T14.4 time.

[0689] Embodiment 15

[0690] Embodiment 15 illustrates a schematic diagram of starting a first timer when receiving a first message according to another embodiment of the present application, as shown in the attached Fig.15 As shown in the attached Fig.15 In the figure, the horizontal axis indicates time; T15.1, T15.2, T15.3 and T15.4 are four moments increasing in time; the diamond-filled box indicates the running time of the first timer; the oblique-line-filled box indicates the running time of the second timer.

[0691] In Example 15, at the T15.1 moment, a first signaling is received, and the first signaling is used to determine a first timing advance; as a response to the behavior receiving the first signaling, the first timing advance is applied and the first timer is started; as a response to the behavior receiving the first signaling, the second timer is started; it is determined whether to clear the first buffer at the first moment based on at least the RRC state; it is determined whether to clear the first buffer at the first moment based on at least whether the second timer is running; at the T15.3 moment, a first message is received; as a response to the behavior receiving the first message, the first timer is started; wherein the time interval from the time the behavior receives the first signaling to the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received from the time the behavior receives the first signaling to the first moment; the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer; the second timer is different from the first timer; the first message is used for the transition of the RRC state.

[0692] As an embodiment, whether to clear the first buffer at the first moment is determined according to at least an RRC state.

[0693] As an embodiment, whether to clear the first buffer at the first moment is determined based on whether at least the second timer is running.

[0694] As an embodiment, the T15.2 moment includes the first moment.

[0695] As an embodiment, at the time T15.4, the first timer expires.

[0696] As an embodiment, at the time T15.4, the second timer is running.

[0697] As an embodiment, at the time T15.4, the second timer is not running.

[0698] As an embodiment, the time interval between the T15.1 moment and the T15.2 moment is equal to the first expiration value.

[0699] As an embodiment, the time interval between the T15.3 moment and the T15.4 moment is equal to the first expiration value.

[0700] As an embodiment, the time interval between the T15.3 moment and the T15.4 moment is equal to the second expiration value.

[0701] As an embodiment, the dotted box F15 is optional.

[0702] As an embodiment, the termination time of the second timer in the dotted box F15 is earlier than the T15.4 time.

[0703] As an embodiment, the termination time of the second timer in the dotted box F15 is later than the T15.4 time.

[0704] As an embodiment, the termination time of the second timer in the dotted box F15 is equal to the T15.4 time.

[0705] Example 16

[0706] Embodiment 16 illustrates a schematic diagram of determining whether to clear the first buffer at a first moment according to the RRC state and the first parameter set according to an embodiment of the present application, as shown in the attached Fig.16 shown.

[0707] In Embodiment 16, the behavior of determining whether to clear the first buffer at the first moment according to at least an RRC state includes: determining whether to clear the first buffer at the first moment according to the RRC state and a first parameter set.

[0708] As a sub-embodiment of this embodiment, the first parameter set includes a positive integer number of parameters.

[0709] As a sub-embodiment of this embodiment, one parameter in the first parameter set includes whether the second timer in the present application is running.

[0710] As an embodiment, the behavior of determining whether to clear the first buffer at the first moment according to the RRC state and the first parameter set includes:

[0711] When the RRC connection state is always maintained from the first signaling received from the behavior to the first moment, and the first parameter set is satisfied, clearing the first buffer at the first moment;

[0712] When the RRC is always in an inactive state from the time when the first signaling is received in the behavior to the first moment, and the first parameter set is satisfied, the first buffer is not cleared at the first moment.

[0713] As an embodiment, the behavior determines whether to clear the first buffer at the first moment according to the RRC state and the first parameter set, including: when the RRC connection state is always in place from the behavior receiving the first signaling to the first moment, clearing the first buffer at the first moment.

[0714] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on the RRC state and the first parameter set, including: when the RRC is always in an inactive state from the time the first signaling is received by the behavior to the first moment, and the first parameter set is satisfied, the first buffer is not cleared at the first moment.

[0715] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on the RRC state and the first parameter set, including: when the RRC is always in an inactive state from the time the first signaling is received by the behavior to the first moment, and the first parameter set is not satisfied, clearing the first buffer at the first moment.

[0716] As an embodiment, the behavior determines whether to clear the first buffer at the first moment based on the RRC state and the first parameter set, including: when the RRC is always in an inactive state from the time the first signaling is received by the behavior to the first moment, and the first parameter set is not satisfied, the first buffer is not cleared at the first moment.

[0717] As an embodiment, the first parameter set includes whether the SDT process is being executed.

[0718] As a sub-embodiment of this embodiment, when the SDT process is being executed, a condition in the first parameter set is met.

[0719] As a sub-embodiment of this embodiment, the given timer being running is used to determine that the SDT process is being executed.

[0720] As a sub-embodiment of this embodiment, the one or more DRBs recovered in the RRC_INACTIVE state are used to determine that the SDT process is being executed.

[0721] As a sub-embodiment of this embodiment, in the RRC_INACTIVE state, monitoring the RNTI-scrambled PDCCH related to the pre-configured resources is used to determine that the SDT process is being performed.

[0722] As a sub-embodiment of this embodiment, in the RRC_INACTIVE state, monitoring the C-RNTI scrambled PDCCH is used to determine that the SDT process is being performed.

[0723] As a sub-embodiment of this embodiment, the execution of the first type of SDT is used to determine that the SDT process is being executed.

[0724] As a sub-embodiment of this embodiment, the executing of the second type of SDT is used to determine that the SDT process is being executed.

[0725] As an embodiment, the first parameter set includes whether the first timer is running.

[0726] As a sub-embodiment of this embodiment, when the first timer is running, a condition in the first parameter set is met.

[0727] As an embodiment, the first parameter set includes whether the second timer is running.

[0728] As a sub-embodiment of this embodiment, when the second timer is running, a condition in the first parameter set is met.

[0729] As an embodiment, the first parameter set includes K1 conditions, where K1 is a positive integer.

[0730] As a sub-embodiment of this embodiment, when the K1 conditions in the first parameter set are all met, the first condition set is met.

[0731] As a sub-embodiment of this embodiment, when at least one of the K1 conditions in the first parameter set is not satisfied, the first condition set is not satisfied.

[0732] Embodiment 17

[0733] Embodiment 17 illustrates a schematic diagram of the timing relationship between the uplink and the downlink and the first timing advance according to an embodiment of the present application, as shown in the attached figure. Fig.17 As shown in the attached Fig.17 In the figure, the box filled with horizontal solid lines represents downlink frame i, and the box filled with vertical solid lines represents uplink frame i; T17.1 and T17.2 are two moments that increase in time; the starting moment of the uplink frame i is T17.1, and the starting moment of the downlink frame i is T17.2; the time interval between T17.1 and T17.2 is equal to the first time length.

[0734] In embodiment 17, the timing relationship between the uplink and the downlink is related to the first timing advance.

[0735] As an embodiment, i is a positive integer.

[0736] As an embodiment, the i identifies the frame number.

[0737] As an embodiment, the uplink frame i is a frame (Frame).

[0738] As an embodiment, the uplink frame i is a subframe.

[0739] As an embodiment, the downlink frame i is a frame.

[0740] As an embodiment, the downlink frame i is a subframe.

[0741] As an embodiment, the one frame includes 10 subframes.

[0742] As an embodiment, one frame includes two half frames of equal length, and each of the half frames includes five subframes.

[0743] As an embodiment, the length of one frame is 10 ms.

[0744] As an embodiment, the length of one subframe is 1 ms.

[0745] As an embodiment, the first time length is related to the first timing advance.

[0746] As an embodiment, the first time length is equal to the first timing advance.

[0747] As an embodiment, the first time length is greater than the first timing advance.

[0748] As an embodiment, the first time length is smaller than the first timing advance.

[0749] As an embodiment, the first time length refers to the first timing advance.

[0750] As an embodiment, the first time length is determined by the first timing advance.

[0751] As an embodiment, the first time length is calculated according to the first timing advance.

[0752] As an embodiment, the first time length is equal to (N TA +N TA,offset )T c Equal, where N TA refers to the first timing advance, N TA,offset Configured by n-TimingAdvanceOffset or N TA,offset Determined by UE.

[0753] As an embodiment, the first timing advance indicates an adjustment value of the uplink timing relative to the current uplink timing, and the adjustment value is 16·64·T c / 2 μ An integer multiple of .

[0754] As an embodiment, the time interval between the start time of sending the uplink frame i from the first node and the start time of receiving the downlink frame i at the first node is equal to the first time length.

[0755] As an embodiment, for the transmission of MsgA on PUSCH, N TA is equal to 0.

[0756] Embodiment 18

[0757] Embodiment 18 illustrates a schematic diagram of determining a second expiration value of a first timer according to a second timer according to an embodiment of the present application, as shown in the attached Fig.18 shown.

[0758] In Example 18, the first node receives a first message in step S18.1; in step S18.2, starts the first timer as a response to the behavior receiving the first message; in step S18.3, determines that the second timer is running; in step S18.4, when the second timer is running, determines the second expiration value of the first timer according to the second timer as a response to the behavior receiving the first message; wherein the first message is used for the transition of the RRC state.

[0759] As an embodiment, the behavior of determining the second expiration value of the first timer according to the second timer means that: the second expiration value of the first timer is related to the second timer.

[0760] As an embodiment, the behavior of determining the second expiration value of the first timer according to the second timer includes: setting the second expiration value of the first timer to the remaining time of the second timer.

[0761] As a sub-embodiment of this embodiment, the difference between the expiration value of the second timer and the current value of the second timer is used to determine the remaining time of the second timer.

[0762] As a sub-embodiment of this embodiment, the remaining time of the second timer refers to how long the second timer will expire.

[0763] As an embodiment, the behavior of determining the second expiration value of the first timer according to the second timer includes: setting the second expiration value of the first timer to the difference between the first expiration value of the first timer and the current value of the second timer.

[0764] As a sub-embodiment of this embodiment, the current value of the second timer is equal to the running time of the second timer.

[0765] As a sub-embodiment of this embodiment, the current value of the second timer refers to the timing of the second timer when the first timer is started.

[0766] As an embodiment, the behavior of determining the second expiration value of the first timer according to the second timer means: setting the second expiration value of the first timer to the smaller of the remaining time of the second timer and the first expiration value of the first timer.

[0767] As an embodiment, the behavior of determining the second expiration value of the first timer according to the second timer means: setting the second expiration value of the first timer to the larger of the remaining time of the second timer and the first expiration value of the first timer.

[0768] As an embodiment, the behavior of determining the second expiration value of the first timer according to the second timer means: calculating the second expiration value according to the remaining time of the second timer, or the current value of the second timer, or the first expiration value of the first timer.

[0769] Embodiment 19

[0770] Embodiment 19 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig.19 As shown in the attached Fig.19 In the embodiment, the processing device 1900 in the first node includes a first receiver 1901 and a first transmitter 1902.

[0771] The first receiver 1901 receives a first signaling, where the first signaling is used to determine a first timing advance; and determines whether to clear a first buffer at a first moment according to at least an RRC state.

[0772] In Example 19, the time interval between the receipt of the first signaling by the behavior and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between the receipt of the first signaling by the behavior and the first moment; the behavior determines whether to clear the first buffer at the first moment based on at least the RRC state, including: when the RRC connection state is always in the period from the receipt of the first signaling by the behavior to the first moment, clearing the first buffer at the first moment; when the RRC inactive state is always in the period from the receipt of the first signaling by the behavior to the first moment, not clearing the first buffer at the first moment.

[0773] As an embodiment, the first receiver 1901, as a response to the behavior receiving the first signaling, applies the first timing advance and starts the first timer; wherein, the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0774] As an embodiment, the first receiver 1901, in response to receiving the first signaling as the behavior, abandons starting the first timer.

[0775] As an embodiment, the first receiver 1901 receives a first message; as a response to the behavior receiving the first message, the first timer is started; wherein the first message is used for the transition of the RRC state.

[0776] As an embodiment, the first receiver 1901, as a response to receiving the first signaling as the behavior, starts a second timer; determines whether to clear the first buffer at the first moment based on whether at least the second timer is running; wherein the second timer is different from the first timer.

[0777] As an embodiment, the first receiver 1901, when the second timer is running, receives the first message as a response to the behavior, and determines the second expiration value of the first timer according to the second timer.

[0778] As an embodiment, the first transmitter 1902 sends a second message set in the RRC inactive state; wherein the second message set triggers the first signaling.

[0779] As an embodiment, the first receiver 1901 includes the attached Figure 4 Antenna 452, receiver 454, multi-antenna reception processor 458, reception processor 456, controller / processor 459, memory 460 and data source 467.

[0780] As an embodiment, the first receiver 1901 includes the attached Figure 4 Antenna 452, receiver 454, multi-antenna receive processor 458, and receive processor 456.

[0781] As an embodiment, the first receiver 1901 includes the attached Figure 4 Antenna 452, receiver 454, and receive processor 456.

[0782] As an embodiment, the first transmitter 1902 includes the attached Figure 4 Antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0783] As an embodiment, the first transmitter 1902 includes the attached Figure 4 Antenna 452, transmitter 454, multi-antenna transmit processor 457, and transmit processor 468.

[0784] As an embodiment, the first transmitter 1902 includes the attached Figure 4 Antenna 452, transmitter 454, and transmit processor 468.

[0785] Embodiment 20

[0786] Embodiment 20 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application; Fig. 20 As shown in the attached Fig. 20 In the embodiment, the processing device 2000 in the second node includes a second transmitter 2001 and a second receiver 2002.

[0787] The second transmitter 2001 sends a first signaling, where the first signaling is used to determine a first timing advance.

[0788] In Embodiment 20, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval from when the first signaling is received to the first moment is greater than or equal to the first expiration value of the first timer; any message indicating a timing advance is not received from when the first signaling is received to the first moment; the phrase whether the first buffer is cleared at the first moment is determined according to at least an RRC state includes:

[0789] When the RRC connection state is always maintained from the time when the first signaling is received to the first moment, the first buffer is cleared at the first moment;

[0790] When the RRC is inactive state from when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

[0791] As an embodiment, whether the first buffer is cleared by the first node at the first moment is determined by the first node according to at least an RRC state.

[0792] As an embodiment, in response to the first signaling being received, the first timing advance is applied and the first timer is started; wherein, the running time of the first timer from the time the behavior receives the first signaling to the first moment reaches the first expiration value of the first timer.

[0793] As an embodiment, in response to the first signaling being received, the first timer is abandoned.

[0794] As an embodiment, in response to the first signaling being received, the first timer is abandoned by the first node.

[0795] As an embodiment, the second transmitter 2001 sends a first message; wherein, as a response to the first message being received, the first timer is started; and the first message is used for the transition of the RRC state.

[0796] As an embodiment, the first timer is started by the first node in response to receipt of the first message.

[0797] As an embodiment, in response to the first signaling being received, a second timer is started; wherein, whether the first buffer is cleared at the first moment is determined based on whether at least the second timer is running; the second timer is different from the first timer.

[0798] As an embodiment, a second timer is started by the first node in response to receipt of the first signaling.

[0799] As an embodiment, when the second timer is running, as a response to the first message being received, the second expiration value of the first timer is determined according to the second timer.

[0800] As an embodiment, the second expiration value of the first timer is determined by the first node according to the second timer.

[0801] As an embodiment, the second receiver 2002 receives a second message set; wherein the second message set triggers the first signaling; and the second message set is sent in the RRC inactive state.

[0802] As an embodiment, the second message set is sent by the first node in the RRC inactive state.

[0803] As an embodiment, the second transmitter 2001 includes the attached Figure 4 Antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475, and memory 476.

[0804] As an embodiment, the second transmitter 2001 includes the attached Figure 4 Antenna 420, transmitter 418, multi-antenna transmit processor 471, and transmit processor 416.

[0805] As an embodiment, the second transmitter 2001 includes the attached Figure 4 Antenna 420, transmitter 418, and transmit processor 416.

[0806] As an embodiment, the second receiver 2002 includes the attached Figure 4 Antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475, and memory 476.

[0807] As an embodiment, the second receiver 2002 includes the attached Figure 4 Antenna 420, receiver 418, multi-antenna receive processor 472, receive processor 470.

[0808] As an embodiment, the second receiver 2002 includes the attached Figure 4 Antenna 420, receiver 418, and receive processor 470.

[0809] Embodiment 21

[0810] Embodiment 21 illustrates a wireless signal transmission flow chart of a second message set triggering a first signaling according to an embodiment of the present application, as shown in the attached Fig.21 shown.

[0811] for First node U01 In step S2111, a second message set is sent in the RRC inactive state; in step S2112, a first signaling is received.

[0812] for Second node N02 , in step S2121, receive the second message set; in step S2122, send the first signaling.

[0813] In embodiment 21, the first signaling is used to determine a first timing advance; and the second message set triggers the first signaling.

[0814] As an embodiment, the behavior of sending the second message set in the RRC inactive state includes: sending the second message set when the first node is in the RRC inactive state.

[0815] As an embodiment, the behavior of sending the second message set in the RRC inactive state includes: when sending the second message set, the first node is in the RRC inactive state.

[0816] As an embodiment, the second message set is used for the SDT process.

[0817] As an embodiment, a second message set is sent in the RRC inactive state and the given timer is started.

[0818] As an embodiment, in the RRC inactive state, when the SDT process is initiated, the given timer is started, the content in the second message set is set, and the second message set is sent.

[0819] As an embodiment, the second message set does not include CCCH (Common Control Channel) SDU (Service Data Unit).

[0820] As an embodiment, the second message set is transmitted via an air interface.

[0821] As an embodiment, the second message set is sent through the antenna port.

[0822] As an embodiment, the second message set is transmitted via high-layer signaling.

[0823] As an embodiment, the second message set is transmitted via higher layer signaling.

[0824] As an embodiment, the second message set includes an uplink signal.

[0825] As an embodiment, the second message set includes a side-link signal.

[0826] As an embodiment, the second message set includes all or part of the high-layer signaling.

[0827] As an embodiment, the second message set includes all or part of higher layer signaling.

[0828] As an embodiment, the signaling radio bearer (SRB) of the second message set includes SRB0.

[0829] As an embodiment, the second message set is transmitted on UL-SCH (Uplink-Sharing Channel).

[0830] As an embodiment, the second message set includes Msg3.

[0831] As an embodiment, the second message set includes a part in MsgA.

[0832] As an embodiment, the second message set includes CCCH messages.

[0833] As an embodiment, the second message set includes a CCCH SDU.

[0834] As an embodiment, the second message set includes a CCCH SDU including the one RRC message.

[0835] As an embodiment, the second message set includes a MAC (Medium Access Control) CE (Control Element).

[0836] As an embodiment, the second message set includes a MAC PDU.

[0837] As an embodiment, the second message set includes a MAC subheader.

[0838] As an embodiment, the second message set includes a C-RNTI MAC CE.

[0839] As an embodiment, the second message set includes DRB data.

[0840] As an embodiment, the second message set includes a buffer status report (Buffer Status Report, BSR).

[0841] As an embodiment, the second message set includes padding bits.

[0842] As an embodiment, the second message set includes an RRC message.

[0843] As an embodiment, the second message set includes an RRC message, and the name of the RRC message includes an RRCResumeRequest message.

[0844] As an embodiment, the second message set includes an RRC message, and the name of the RRC message includes an RRCResumeRequest1 message.

[0845] As an embodiment, the second message set includes an RRC message, and the name of the RRC message includes an RRC EarlyDataRequest message.

[0846] As an embodiment, the name of the second message set includes at least one of RRC or Connection or Resume or sdt or idt or Inactive or Small or Data or Transmission or Request.

[0847] As an embodiment, the phrase that the second message set triggers the first signaling includes: the first signaling is a response to the second message set.

[0848] As an embodiment, the phrase "the second message set triggers the first signaling" includes: the second message set is used to initiate an SDT process, and during the SDT process, the first signaling is received.

[0849] As an embodiment, the phrase that the second message set triggers the first signaling includes: the first signaling is received after the second message set is sent.

[0850] As an embodiment, the phrase "the second message set triggers the first signaling" includes: the first signaling carries a confirmation message for the second message set.

[0851] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0852] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node used for wireless communication, characterized in that: include: A first receiver receives a first signaling, wherein the first signaling is used to determine a first timing advance; Determining whether to clear the first buffer at a first moment according to at least an RRC state; The time interval between the receiving of the first signaling and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between the receiving of the first signaling and the first moment; and determining whether to clear the first buffer at the first moment according to at least the RRC state includes: When the RRC connection state is always maintained from the receiving of the first signaling to the first moment, clearing the first buffer at the first moment; When the RRC is inactive state from the time when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

2. The first node according to claim 1, characterized in that: include: The first receiver, in response to the receiving the first signaling, applies the first timing advance and starts the first timer; Among them, the running time of the first timer between the receiving of the first signaling and the first moment reaches the first expiration value of the first timer.

3. The first node according to claim 2, characterized in that: The first signaling includes Timing Advance Command MAC CE, or the first signaling includes MAC RAR, or the first signaling includes fallback RAR, or the first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received in the RRC connection state; the first moment includes the moment when the first timer expires; and the RRC connection state is always maintained from the reception of the first signaling to the first moment.

4. The first node according to claim 2, characterized in that: The first signaling includes MAC RAR, or the first signaling includes fallbackRAR; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in an RRC inactive state; the SDT includes a second-type SDT, and the second-type SDT refers to an SDT initiated by ConfiguredGrant; and the RRC is always in an inactive state from the time the first signaling is received to the first moment.

5. The first node according to claim 1, characterized in that: include: The first receiver, in response to receiving the first signaling, abandons starting the first timer.

6. The first node according to claim 5, characterized in that: include: The first receiver, in response to the receiving of the first signaling, starts or restarts a second timer; determining whether to clear the first buffer at the first moment according to whether at least the second timer is running; The name of the second timer is different from that of the first timer; the name of the second timer includes -timeAlignmentTimer.

7. The first node according to claim 6, characterized in that: Determining whether to clear the first buffer at the first moment based on whether at least the second timer is running and determining whether to clear the first buffer at the first moment based on at least the RRC state means that when the second timer is running and is in an RRC inactive state from the receipt of the first signaling to the first moment, the first buffer is not cleared at the first moment.

8. The first node according to any one of claims 5 to 7, characterized in that: The first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated by a Configured Grant; the RRC is always in the inactive state from the time the first signaling is received to the first moment.

9. The first node according to any one of claims 5 to 7, characterized in that: The first signaling includes a Timing Advance Command MAC CE; the first signaling is received during an SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

10. The first node according to any one of claims 5 to 9, characterized in that: include: The first receiver, in response to receiving the first signaling, applies the first timing advance.

11. The first node according to any one of claims 5 to 10, characterized in that: The abandonment of starting the first timer is used to determine that the first timer has not expired at the first time, and the first timer not having expired at the first time is used to determine that the first buffer is not cleared at the first time.

12. The first node according to any one of claims 2 to 11, characterized in that: The term "start" means "start" or "restart".

13. The first node according to any one of claims 1 to 12, characterized in that: include: The first receiver receives a first message; In response to receiving the first message, starting the first timer; The first message is used for the transition of the RRC state.

14. The first node according to claim 13, characterized in that: The first message includes an RRCResume message, or the first message includes an RRCSetup message.

15. The first node according to claim 13 or 14, characterized in that: The meaning of starting the first timer as a response to receiving the first message includes: as a response to receiving the first message, the RRC layer of the first node sends a notification to the MAC layer of the first node, and when the MAC of the first node receives the notification, the first timer is started.

16. The first node according to any one of claims 1 to 15, characterized in that: The first timer is a timeAlignmentTimer; the first buffer includes a HARQ Buffer; and the message indicating the timing advance is a message carrying a Timing Advance Command field.

17. A method in a first node for wireless communication, characterized in that: include: receiving first signaling, wherein the first signaling is used to determine a first timing advance; Determining whether to clear the first buffer at a first moment according to at least an RRC state; The time interval between the receiving of the first signaling and the first moment is greater than or equal to the first expiration value of the first timer; no message indicating the timing advance is received between the receiving of the first signaling and the first moment; and determining whether to clear the first buffer at the first moment according to at least the RRC state includes: When the RRC connection state is always maintained from the receiving of the first signaling to the first moment, clearing the first buffer at the first moment; When the RRC is inactive state from the time when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

18. The method in the first node according to claim 17, characterized in that: include: In response to receiving the first signaling, applying the first timing advance and starting the first timer; Among them, the running time of the first timer between the receiving of the first signaling and the first moment reaches the first expiration value of the first timer.

19. The method in the first node according to claim 18, characterized in that: The first signaling includes TimingAdvance Command MAC CE, or the first signaling includes MAC RAR, or the first signaling includes fallbackRAR, or the first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received in the RRC connection state; the first moment includes the moment when the first timer expires; and the RRC connection state is always maintained from the reception of the first signaling to the first moment.

20. The method in the first node according to claim 18, characterized in that: The first signaling includes MACRAR, or the first signaling includes fallbackRAR; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in an RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

21. The method in the first node according to claim 17, characterized in that: include: In response to the receiving of the first signaling, starting the first timer is abandoned.

22. The method in the first node according to claim 21, characterized in that: include: In response to the receiving of the first signaling, starting or restarting a second timer; determining whether to clear the first buffer at the first moment according to whether at least the second timer is running; The name of the second timer is different from that of the first timer; the name of the second timer includes -timeAlignmentTimer.

23. The method in the first node according to claim 22, characterized in that: Determining whether to clear the first buffer at the first moment based on whether at least the second timer is running and determining whether to clear the first buffer at the first moment based on at least the RRC state means that when the second timer is running and is in an RRC inactive state from the receipt of the first signaling to the first moment, the first buffer is not cleared at the first moment.

24. The method in the first node according to any one of claims 21 to 23, characterized in that: The first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated by a Configured Grant; the RRC is always in the inactive state from the time the first signaling is received to the first moment.

25. The method in the first node according to any one of claims 21 to 23, characterized in that: The first signaling includes a Timing Advance Command MAC CE; the first signaling is received during an SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

26. The method in the first node according to any one of claims 21 to 25, characterized in that: include: In response to the receiving the first signaling, the first timing advance is applied.

27. The method in the first node according to any one of claims 21 to 26, characterized in that: The abandonment of starting the first timer is used to determine that the first timer has not expired at the first time, and the first timer not having expired at the first time is used to determine that the first buffer is not cleared at the first time.

28. The method in the first node according to any one of claims 18 to 27, characterized in that: The term "start" means "start" or "restart".

29. The method in the first node according to any one of claims 17 to 28, characterized in that: include: receiving a first message; In response to receiving the first message, starting the first timer; The first message is used for the transition of the RRC state.

30. The method in the first node according to claim 29, characterized in that: The first message includes an RRCResume message, or the first message includes an RRCSetup message.

31. The method in the first node according to claim 29 or 30, characterized in that: The meaning of starting the first timer as a response to receiving the first message includes: as a response to receiving the first message, the RRC layer of the first node sends a notification to the MAC layer of the first node, and when the MAC of the first node receives the notification, the first timer is started.

32. The method in the first node according to any one of claims 17 to 31, characterized in that: The first timer is a timeAlignmentTimer; the first buffer includes a HARQ Buffer; and the message indicating the timing advance is a message carrying a Timing Advance Command field.

33. A second node used for wireless communication, characterized in that: include: A second transmitter sends a first signaling, where the first signaling is used to determine a first timing advance; Among them, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval from when the first signaling is received to the first moment is greater than or equal to the first expiration value of the first timer; any message indicating the timing advance amount is not received from when the first signaling is received to the first moment; whether the first buffer is cleared at the first moment is determined according to at least an RRC state includes: When the RRC connection state is always maintained from the time when the first signaling is received to the first moment, the first buffer is cleared at the first moment; When the RRC is inactive state from when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

34. The second node according to claim 33, characterized in that: In response to the first signaling being received, the first timing advance is applied and the first timer is started; wherein the running time of the first timer between the reception of the first signaling and the first moment reaches the first expiration value of the first timer.

35. The second node according to claim 34, characterized in that: The first signaling includes Timing Advance Command MAC CE, or the first signaling includes MAC RAR, or the first signaling includes fallback RAR, or the first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received in the RRC connection state; the first moment includes the moment when the first timer expires; and the RRC connection state is always maintained from the reception of the first signaling to the first moment.

36. The second node according to claim 34, characterized in that The first signaling includes MAC RAR, or the first signaling includes fallbackRAR; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in an RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

37. The second node according to claim 33, characterized in that: In response to the first signaling being received, the first timer is aborted from being started.

38. The second node according to claim 37, characterized in that: In response to receiving the first signaling, a second timer is started; whether the first buffer is cleared at the first moment is determined based on whether at least the second timer is running; the second timer has a different name from the first timer; the name of the second timer includes -timeAlignmentTimer.

39. The second node according to claim 38, characterized in that: Whether the first buffer is cleared at the first moment is determined according to at least the RRC state and whether the first buffer is cleared at the first moment is determined according to at least whether the second timer is running includes: when the second timer is running and is in an RRC inactive state from the receipt of the first signaling to the first moment, the first buffer is not cleared at the first moment.

40. The second node according to any one of claims 37 to 39, characterized in that: The first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated by a Configured Grant; the RRC is always in the inactive state from the time the first signaling is received to the first moment.

41. The second node according to any one of claims 37 to 39, characterized in that: The first signaling includes a Timing Advance Command MAC CE; the first signaling is received during an SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

42. The second node according to any one of claims 37 to 41, characterized in that: In response to the receiving the first signaling, the first timing advance is applied.

43. The second node according to any one of claims 37 to 42, characterized in that: The abandonment of starting the first timer is used to determine that the first timer has not expired at the first time, and the first timer not having expired at the first time is used to determine that the first buffer is not cleared at the first time.

44. The second node according to any one of claims 34 to 43, characterized in that: The term "start" means "start" or "restart".

45. The second node according to any one of claims 33 to 44, characterized in that: include: The second transmitter sends a first message; Wherein, as a response to the first message being received, the first timer is started; The first message is used for transition of the RRC state.

46. ​​The second node according to claim 45, characterized in that The first message includes an RRCResume message, or the first message includes an RRCSetup message.

47. The second node according to claim 45 or 46, characterized in that: The meaning of starting the first timer as a response to receiving the first message includes: as a response to receiving the first message, the RRC layer of the recipient of the first signaling sends a notification to the MAC layer of the recipient of the first signaling, and when the MAC of the recipient of the first signaling receives the notification, the first timer is started.

48. The second node according to any one of claims 33 to 47, characterized in that: The first timer is a timeAlignmentTimer; the first buffer includes a HARQ Buffer; and the message indicating the timing advance is a message carrying a Timing Advance Command field.

49. A method in a second node for wireless communication, characterized in that: include: Sending a first signaling, where the first signaling is used to determine a first timing advance; Among them, whether the first buffer is cleared at the first moment is determined according to at least an RRC state; the time interval from when the first signaling is received to the first moment is greater than or equal to the first expiration value of the first timer; any message indicating the timing advance amount is not received from when the first signaling is received to the first moment; whether the first buffer is cleared at the first moment is determined according to at least an RRC state includes: When the RRC connection state is always maintained from the time when the first signaling is received to the first moment, the first buffer is cleared at the first moment; When the RRC is inactive state from when the first signaling is received to the first moment, the first buffer is not cleared at the first moment.

50. The method in the second node according to claim 49, characterized in that: In response to the first signaling being received, the first timing advance is applied and the first timer is started; wherein the running time of the first timer between the reception of the first signaling and the first moment reaches the first expiration value of the first timer.

51. The method in the second node according to claim 50, characterized in that: The first signaling includes TimingAdvance Command MAC CE, or the first signaling includes MAC RAR, or the first signaling includes fallbackRAR, or the first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received in the RRC connection state; the first moment includes the moment when the first timer expires; and the RRC connection state is always maintained from the reception of the first signaling to the first moment.

52. The method in the second node according to claim 50, characterized in that: The first signaling includes MACRAR, or the first signaling includes fallbackRAR; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in an RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

53. The method in the second node according to claim 49, characterized in that: In response to the first signaling being received, the first timer is aborted from being started.

54. The method in the second node according to claim 53, characterized in that: In response to receiving the first signaling, a second timer is started; whether the first buffer is cleared at the first moment is determined based on whether at least the second timer is running; the second timer has a different name from the first timer; the name of the second timer includes -timeAlignmentTimer.

55. The method in the second node according to claim 54, characterized in that: Whether the first buffer is cleared at the first moment is determined according to at least the RRC state and whether the first buffer is cleared at the first moment is determined according to at least whether the second timer is running includes: when the second timer is running and is in an RRC inactive state from the receipt of the first signaling to the first moment, the first buffer is not cleared at the first moment.

56. The method in the second node according to any one of claims 53 to 55, characterized in that: The first signaling includes Absolute Timing Advance Command MAC CE; the first signaling is received during the SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated by a Configured Grant; the RRC is always in the inactive state from the time the first signaling is received to the first moment.

57. The method in the second node according to any one of claims 53 to 55, characterized in that: The first signaling includes a Timing Advance Command MAC CE; the first signaling is received during an SDT process; the SDT process includes transmitting a small data packet in the RRC inactive state; the SDT includes a second type of SDT, and the second type of SDT refers to an SDT initiated through a Configured Grant; the RRC is always in an inactive state from the time the first signaling is received to the first moment.

58. The method in the second node according to any one of claims 53 to 57, characterized in that: In response to the receiving the first signaling, the first timing advance is applied.

59. The method in the second node according to any one of claims 53 to 58, characterized in that: The abandonment of starting the first timer is used to determine that the first timer has not expired at the first time, and the first timer not having expired at the first time is used to determine that the first buffer is not cleared at the first time.

60. The method in the second node according to any one of claims 50 to 59, characterized in that: The term "start" means "start" or "restart".

61. The method in the second node according to any one of claims 49 to 60, characterized in that: include: Sending a first message; Wherein, as a response to the first message being received, the first timer is started; The first message is used for transition of the RRC state.

62. The method in the second node according to claim 61, characterized in that: The first message includes an RRCResume message, or the first message includes an RRCSetup message.

63. The method in the second node according to claim 61 or 62, characterized in that: The meaning of starting the first timer as a response to receiving the first message includes: as a response to receiving the first message, the RRC layer of the recipient of the first signaling sends a notification to the MAC layer of the recipient of the first signaling, and when the MAC of the recipient of the first signaling receives the notification, the first timer is started.

64. The method in the second node according to any one of claims 49 to 63, characterized in that: The first timer is a timeAlignmentTimer; the first buffer includes a HARQ Buffer; and the message indicating the timing advance is a message carrying a Timing Advance Command field.

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