Method and apparatus in a node for wireless communication

Abstract

This application discloses a method and apparatus in a node for wireless communication. The method includes a first node, the first node receiving a first signaling, the first signaling being an RRC signaling, which is used to configure an uplink grant to a first cell, and in response to the end of a first timer, clearing at least the uplink grant to the first cell, receiving a second signaling, the second signaling being a MAC layer signaling or a physical layer signaling, and in response to receiving the second signaling, handing over to the first cell, the handover behavior to the first cell including activating the uplink grant configured by the first signaling. According to this application, uplink resources can be rapidly acquired in cell handover scenarios triggered by protocol layers lower than the RRC layer, reducing downtime and signaling overhead.

Description

Technical Field

[0001] This application relates to a transmission method and apparatus in a wireless communication system, and particularly to a method and apparatus for wireless signal transmission.

Background Art

[0002] In the future, the application scenarios of wireless communication systems will become increasingly diverse, and different application scenarios will impose different performance requirements on the system. In order to meet the different performance needs of various application scenarios, at the 72nd Plenary Session of the 3rd Generation Partnership Project (3GPP) Radio Access Network (RAN), the study of the New Radio (NR) technology (or 5G) was decided, and at the 75th Plenary Session of 3GPP RAN, the work item (WI) of the New Radio (NR) technology was approved, and the standardization work of NR was started.

[0003] The mobility of user equipment (UE) is an important feature of wireless networks. The change of the existing serving cell is usually triggered by layer 3 (L3) measurements and is implemented through resynchronization triggered by radio resource control (RRC) signaling, which also involves layer 2 (L2) and layer 1 (L1) resets. The change of the serving cell implemented at L3 has the characteristics of significant delay, large signaling overhead, and long interruption time. In order to further improve the mobility performance of UE, at the 94th e Plenary Session of 3GPP RAN, it was decided to implement the WI of "Further NR Mobility Enhancement". Layer 1 / L2 Triggered Mobility (LTM) is an important research object for reducing latency, overhead, and interruption time.

Summary of the Invention

[0004] Under existing standards, when the timeAlignmentTimer terminates, the uplink grants of cells within the corresponding cell group are cleared. Uplink grants are only performed after the terminal receives air interface signaling to activate or reconfigure the uplink grant. In management scenarios based on L1 / L2 trigger mobility, synchronous RRC signaling-triggered reconfiguration is not required. Therefore, methods for rapidly acquiring uplink resources, reducing latency, and minimizing downtime during handover to target cells require further research.

[0005] In response to the above problems, this application discloses a solution. While this application is primarily intended for LTM scenarios, it should be noted that it is also applicable to other non-LTM scenarios. Furthermore, incorporating a unified design solution across different scenarios (including, but not limited to, capacity expansion systems, near-field communication systems, communications in unlicensed bands, the Internet of Things (IoT), ultra-high reliability low-latency communications (URLLC) networks, and vehicles and everything else) also helps reduce hardware complexity and cost. Embodiments and features in any node of this application can be applied to any other node, provided they do not conflict. Embodiments and features in any node of this application may be combined with each other as they wish, provided they do not conflict.

[0006] In particular, explanations of terms, nouns, functions, and variables in this application (unless otherwise specified) can be referenced to the definitions in the TS36, TS38, and TS37 series of 3GPP specification protocols. If necessary, refer to the 3GPP standards TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.321, TS38.331, TS38.305, and TS38. You can refer to .304 and TS37.355.

[0007] In one embodiment, the definitions of terms used in this application refer to the definitions in the TS36 series of 3GPP specification protocols.

[0008] In one embodiment, the definitions of terms used in this application refer to the definitions in the TS38 series of 3GPP specification protocols.

[0009] In one embodiment, the definitions of terms used in this application refer to the definitions in the TS37 series of 3GPP specification protocols.

[0010] In one embodiment, the definitions of terms used in this application refer to the definitions in the IEEE (Institute of Electrical and Electronics Engineers) specifications and protocols.

[0011] This application relates to a method used in a first node for wireless communication, A first signaling, the first signaling being an RRC signaling, and the first signaling being used to establish an uplink grant to a first cell, receiving the first signaling, In response to the end of the first timer, clear the uplink grant to at least the first cell, Receiving a second signaling, where the second signaling is either MAC layer signaling or physical layer signaling, This includes, in response to receiving a second signaling signal, handing over to the first cell, The behavior of handing over to the first cell discloses a method that includes activating an uplink grant configured by the first signaling.

[0012] In one embodiment, the problem to be solved in this application includes a method for activating an uplink grant configured in a target cell during a cell handover process triggered by a protocol layer below the RRC layer.

[0013] In one embodiment, the problem to be solved in this application includes a method for reducing interruption time during a serving cell change process and reducing uplink transmission latency.

[0014] In one embodiment, the characteristics of the above method include automatically activating a configured uplink grant, which is cleared when the timeAlignmentTimer terminates, during a cell handover process triggered by a protocol layer lower than the RRC layer, while the first node of the present application is handing over to a target cell, thereby solving the above problem.

[0015] In one embodiment, the characteristics of the above method include that when the first signaling constitutes the uplink resource of the first cell, the first node can quickly acquire the uplink resource of the first cell after handing over to the first cell via a protocol layer lower than the RRC layer, thereby solving the above problem.

[0016] In one embodiment, the characteristics of the above method include the first node uplink-synchronizing with the first cell when the first node receives a second signaling signal for handover to the first cell.

[0017] As one embodiment, the advantage of the above method is that uplink resources can be quickly acquired, This includes reducing top-link transmission latency.

[0018] In one embodiment, the advantages of the above method include the ability to activate the uplink grant without RRC layer reconstruction and reduced signaling overhead.

[0019] In one embodiment, the advantages of the above method include activating the uplink grant while handing over to the target cell via a protocol layer lower than the RRC layer, thereby reducing downtime.

[0020] According to one aspect of the present application, the above method includes activating the configured uplink grant configured by the first signaling only when the candidate configured grant type indicated by the first signaling is configured grant type 1 and configured grant type 2, and the handover behavior to the first cell is activating the configured uplink grant configured by the first signaling.

[0021] In one embodiment, the characteristics of the above method include that when the first node hands over to the first cell via a protocol layer lower than the RRC layer, whether the first node activates an uplink grant configured at the RRC layer depends on the configured grant type of the configured grant configuration of the uplink grant.

[0022] In one embodiment, the characteristics of the above method include, when the type of configured grant configuration is configured grant type 1, the first node activating the configured grant configuration while handing over to the first cell via a protocol layer lower than the RRC layer.

[0023] In one embodiment, the characteristics of the above method include, when the type of configured grant configuration is configured grant type 2, the first node does not activate the configured grant configuration while handing over to the first cell via a protocol layer lower than the RRC layer.

[0024] In one embodiment, the advantages of the above method include avoiding resource waste and maintaining good backward compatibility.

[0025] As one embodiment, the advantage of the above method is that since the configured grant type 2 transmission needs to be activated through dynamic signaling, the above method of activating only the configured grant type 1 is simpler and more efficient, avoiding the problem of inconsistent understanding between the terminal and the base station regarding the currently applicable configured grants, and further saving signaling overhead.

[0026] According to one aspect of the present application, the above method is characterized in that the expiration of the first timer occurs after the first signaling and before the second signaling.

[0027] As one embodiment, the characteristic of the above method includes that when the expiration of the first timer occurs, the first node does not receive MAC layer signaling or physical layer signaling used for cell handover.

[0028] As one embodiment, the characteristic of the above method includes that before the first node hands over to the first cell via a protocol layer lower than the RRC layer, the first cell is configured by an uplink grant via RRC layer configuration signaling.

[0029] According to one aspect of the present application, the method is characterized in that before the second signaling, the first node does not receive air interface signaling for activating the configured grant configuration indicated by the first signaling, and the air interface signaling is RRC signaling or DCI.

[0030] As one embodiment, the characteristic of the above method includes that before the first node hands over to the first cell via a protocol layer lower than the RRC layer, the configured grant configuration indicated by the first signaling is not activated or reconfigured.

[0031] In one embodiment, the characteristics of the above method include the second signaling being used to activate the configured grant configuration indicated by the first signaling.

[0032] In one embodiment, the advantages of the above method include reducing uplink transmission latency.

[0033] In one embodiment, the advantages of the above method include the elimination of the need to re-indicate the configured grant configuration indicated by the first signaling via additional RRC signaling, thereby saving signaling overhead.

[0034] According to one aspect of this application, the above method is characterized in that when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

[0035] In one embodiment, the characteristics of the above method include that when the first timer terminates, the first cell does not provide service to the first node.

[0036] In one embodiment, the characteristics of the above method include that when the first timer terminates, the first cell is a candidate cell for the first node.

[0037] In one embodiment, the characteristics of the above method include waiting for the first cell to be dynamically identified as the serving cell of the first node when the first timer terminates.

[0038] In one embodiment, the characteristics of the above method include the first cell supporting a cell handover triggered by the first node via L1 / L2.

[0039] In one embodiment, the characteristics of the above method include the fact that the method described in this application is applicable to scenarios where the target cell for cell handover is a non-serving cell.

[0040] According to one aspect of this application, the above method is characterized in that when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

[0041] In one embodiment, the characteristics of the above method include the first timer being associated with the first cell.

[0042] According to one aspect of this application, the above method is The system is characterized by including a handover to obtain a first serving cell.

[0043] In one embodiment, the characteristics of the above method include the first serving cell being the first cell.

[0044] In one embodiment, the characteristics of the above method include the first serving cell being a cell other than the first cell.

[0045] According to one aspect of this application, the above method is This includes transmitting a first signal within a first time-frequency resource set, The uplink grant configured for the first signaling is characterized by being used to determine the first time-frequency resource set.

[0046] In one embodiment, the characteristics of the above method include the fact that the first node does not need to receive dynamic scheduling or RRC reconfiguration of the first time-frequency resource before transmitting the first signal within the first time-frequency resource set.

[0047] In one embodiment, the advantages of the above method include rapidly acquiring uplink resources and reducing the transmission latency of the first signal.

[0048] According to one aspect of this application, the above method is characterized in that the first node includes a part of the user equipment.

[0049] According to one aspect of this application, the above method is characterized in that the first node includes a relay node.

[0050] This application relates to a method used in a second node for wireless communication, A first signaling, the first signaling being an RRC signaling, and the first signaling transmitting the first signaling, which is used to establish an uplink grant to a first cell, The process includes transmitting a second signaling, wherein the second signaling is either a MAC layer signaling or a physical layer signaling. The recipients of the first and second signalings include a first node, and in response to the end of the first timer, the first node clears an uplink grant to at least a first cell, and in response to receiving the second signaling, the first node hands over to the first cell, the behavior of the handover to the first cell includes activating the uplink grant configured by the first signaling.

[0051] According to one aspect of this application, the above method is characterized in that the candidate configured grant type indicated by the first signaling includes configured grant type 1 and configured grant type 2, and the handover behavior to the first cell includes activating the configured uplink grant by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1.

[0052] According to one aspect of this application, the above method is characterized in that the termination of the first timer occurs after the first signaling and before the second signaling.

[0053] According to one aspect of this application, the method is characterized in that, prior to the second signaling, the first node does not receive an air interface signaling for activating a configured grant configuration indicated by the first signaling, wherein the air interface signaling is an RRC signaling or a DCI.

[0054] According to one aspect of this application, the above method is characterized in that, when the termination behavior of the first timer occurs, the first cell waits for the first node to be handed over.

[0055] According to one aspect of this application, the above method is characterized in that when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

[0056] According to one aspect of this application, the above method is It is characterized by including a first node that performs a handover to acquire the first serving cell.

[0057] According to one aspect of this application, the above method is This includes receiving a first signal within a first time-frequency resource set, The uplink grant configured for the first signaling is characterized by being used to determine the first time-frequency resource set.

[0058] According to one aspect of this application, the above method is characterized in that the second node is a user device.

[0059] According to one aspect of this application, the above method is characterized in that the second node is a relay node.

[0060] This application relates to a device used in a first node for wireless communication, A first receiver receives a first signaling, which is a first signaling, which is an RRC signaling, and which is used to configure an uplink grant for a first cell, and in response to the end of a first timer, clears at least the uplink grant for the first cell, and a second signaling, which is a second signaling, which is a MAC layer signaling or a physical layer signaling. A first transmitter that, in response to receiving a second signaling signal, hands over to a first cell, The handover behavior to the first cell reveals a device that activates an uplink grant configured by the first signaling.

[0061] This application relates to a device used in a second node for wireless communication, The system comprises a first signaling, the first signaling being an RRC signaling, which transmits a first signaling used to configure an uplink grant to a first cell, and a second transmitter, the second signaling being a second signaling, the second signaling being a MAC layer signaling or a physical layer signaling. The device discloses a device in which the recipients of the first and second signalings include a first node, and in response to the end of a first timer, the first node clears an uplink grant to at least a first cell, and in response to receiving the second signaling, the first node hands over to the first cell, the behavior of the handover to the first cell includes activating the uplink grant configured by the first signaling.

[0062] In one embodiment, this application has the following preferred advantages compared to conventional solutions, but is not limited to these: Uplink resources are acquired quickly, and uplink transmission latency is reduced. Uplink Grant can be activated without synchronous reconfiguration of the RRC layer, reducing signaling overhead, and The uplink grant is activated during the handover to the target cell, reducing downtime.

[0063] Other features, purposes, and advantages of this application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. [Brief explanation of the drawing]

[0064] [Figure 1] A flowchart of the transmission at the first node according to one embodiment of this application is shown. [Figure 2] A schematic diagram of a network architecture according to one embodiment of this application is shown. [Figure 3] A schematic diagram of one embodiment of a wireless protocol architecture for a user plane and a control plane according to one embodiment of this application is shown. [Figure 4] A schematic diagram of a first communication device and a second communication device according to one embodiment of this application is shown. [Figure 5] A first flowchart of transmission between a first node and a second node according to one embodiment of this application is shown. [Figure 6] A second flowchart of transmission between a first node and a second node according to one embodiment of this application is shown. [Figure 7] A schematic diagram of a first node according to one embodiment of this application is shown. [Figure 8] A schematic diagram of the end time of the first timer according to one embodiment of this application is shown. [Figure 9] A schematic diagram is shown of the time before the second signaling is received, according to one embodiment of this application. [Figure 10] A first schematic diagram of the relationship between the first cell and the first node when the first timer terminates, according to one embodiment of this application, is shown. [Figure 11] A second schematic diagram of the relationship between the first cell and the first node when the first timer terminates, according to one embodiment of this application, is shown. [Figure 12] A schematic diagram of a configured grant type according to one embodiment of this application is shown. [Figure 13] A schematic diagram of a configured grant type, indicated by a first signaling which is configured grant type 1 according to one embodiment of this application, is shown. [Figure 14] A schematic diagram of a configured grant type, indicated by a first signaling which is configured grant type 2 according to one embodiment of this application, is shown. [Figure 15] This document shows a structural block diagram of a processing unit in the first node according to one embodiment of this application. [Figure 16] This document shows a structural block diagram of the processing unit in the second node according to one embodiment of this application. [Modes for carrying out the invention]

[0065] The technical solutions of this application are described in further detail below in conjunction with the accompanying drawings. It should be noted that the embodiments and features of the embodiments of this application may be combined with each other as appropriate, provided there is no inconsistency.

[0066] Embodiment 1 Embodiment 1 illustrates a flowchart of the transmission of a first node according to one embodiment of the present application, as shown in Figure 1. In Figure 1, each block represents one step. In particular, the order of the steps within a block does not represent a specific time sequence between various steps.

[0067] In step 101, the first node is the first signaling, the first signaling is the RRC signaling, and the first signaling is the A for the first cell In step 102, the uplink grant is cleared to at least the first cell in response to the end of the first timer, and in step 103, a second signaling is received, the second signaling is either a MAC layer signaling or a physical layer signaling, and in step 104, a handover is performed to the first cell in response to the receipt of the second signaling.

[0068] In Embodiment 1, the handover behavior to the first cell includes activating an uplink grant configured by the first signaling.

[0069] In one embodiment, RRC refers to wireless resource control.

[0070] In one embodiment, the MAC layer refers to the media access control layer.

[0071] In one embodiment, "handover to ~" refers to "switching to ~".

[0072] In one embodiment, "handover to ~" refers to "the act of handing over to ~".

[0073] In one embodiment, "handover to ~" refers to "changing to ~".

[0074] In one embodiment, "handover to ~" refers to "taking up a position at ~".

[0075] In one embodiment, the first signaling is RRC signaling.

[0076] In one embodiment, the first signaling includes information from all or some fields within a single RRC IE (information element).

[0077] In one embodiment, the first signaling includes some or all of the fields within the ServingCellConfig IE.

[0078] In one embodiment, the first signaling includes some or all of the fields within the UplinkConfig IE.

[0079] In one embodiment, the first signaling includes some or all of the fields within the BWP-Uplink IE.

[0080] In one embodiment, the first signaling is BWP-UplinkDedicated Includes some or all fields within IE.

[0081] In one embodiment, the first signaling includes some or all fields of ConfiguredGrantConfigToAddModList-r16 IE.

[0082] In one embodiment, the first signaling includes some or all of the fields within the ConfiguredGrantConfig IE.

[0083] In one sub-embodiment of this embodiment, the first signaling includes the rrc-ConfiguredUplinkGrant field.

[0084] As one sub-embodiment of this embodiment, the first signaling is rrc-Config Does not include the uredUplinkGrant field.

[0085] In one embodiment, the first signaling belongs to a portion of a given RRC signaling that contains one field.

[0086] In one sub-embodied embodiment of this designation, the name of a given RRC signaling includes L1.

[0087] In one sub-embodied embodiment of this designation, the given RRC signaling name includes L2.

[0088] In one sub-embodiment of this embodiment, the given RRC signaling name includes L1 or L2.

[0089] In one sub-embodied embodiment of this designation, the name of a given RRC signaling includes Mobility.

[0090] In one sub-embodiment of this embodiment, the name of a given RRC signaling includes CandidateCell.

[0091] In one sub-embodied embodiment of this designation, the name of a given RRC signaling includes Reconfig.

[0092] In one sub-embodiment of this embodiment, the name of a given RRC signaling includes ToAdd.

[0093] In one sub-embodiment of this embodiment, the name of a given RRC signaling includes a ModList.

[0094] In one sub-embodiment of this embodiment, the containing portion includes RRCReconfiguration IE.

[0095] In one embodiment, when the first node receives the first signaling, the first cell is one of the serving cells of the first node.

[0096] In one embodiment, when the first node receives the first signaling, the first cell provides a service to the first node.

[0097] In one embodiment, when the first node receives the first signaling, the first cell is a candidate cell for the first node, and the first cell does not provide services to the first node.

[0098] In one embodiment, the first cell corresponds to one PhysCellId.

[0099] In one embodiment, the first cell corresponds to one PCID.

[0100] In one embodiment, the PhysCellId corresponding to the first cell is a non-negative integer less than or equal to 1007.

[0101] In one embodiment, the PCID in this application refers to a physical cell identifier.

[0102] In one embodiment, PCID in this application refers to physical cell identity.

[0103] In one embodiment, PCID in this application refers to the physical layer cell identity.

[0104] In one embodiment, PCID in this application refers to physCellId.

[0105] In one embodiment, the first signaling is used to constitute an uplink grant(s) to the first cell.

[0106] In one embodiment, the first signaling is used to indicate an uplink grant to the first cell.

[0107] In one embodiment, the first signaling is used to constitute an uplink grant to the uplink carrier (UL carrier) of the first cell.

[0108] In one embodiment, the first signaling is used to indicate an uplink grant to the uplink carrier of the first cell.

[0109] In one embodiment, the first signaling is used to configure an uplink grant to the auxiliary uplink carrier (SUL carrier) of the first cell.

[0110] In one embodiment, the first signaling is used to indicate an uplink grant to the auxiliary uplink carrier of the first cell.

[0111] In one embodiment, the first signaling is used to configure an uplink grant for one uplink bandwidth portion (BWP) of the first cell.

[0112] In one embodiment, the first signaling is used to indicate an uplink grant for one uplink BWP of the first cell.

[0113] In one embodiment, the first signaling is used to configure uplink grants for multiple uplink BWPs of the first cell.

[0114] In one embodiment, the first signaling is used to indicate the uplink grants of multiple uplink BWPs of the first cell.

[0115] In one embodiment, the uplink grant includes one or more ConfiguredGrantConfigs.

[0116] As one sub-embodiment of this embodiment, the configured grant configuration supports one or more uplink transmissions that do not include dynamic grants.

[0117] As one sub-embodiment of this embodiment, the configured grant configuration corresponds to one or more uplink grants corresponding to one type 1 configured grant.

[0118] As one sub-embodiment of this embodiment, the configured grant configuration corresponds to one or more uplink grants corresponding to one type 2 configured grant.

[0119] As one sub-embodiment of this embodiment, the configured Grant configuration is one index Corresponds to ks.

[0120] As one sub-embodiment of this embodiment, the configured grant configuration corresponds to one configuredGrantConfigIndex.

[0121] As one sub-embodiment of this embodiment, the configured grant configuration corresponds to one configuredGrantConfigIndexMAC.

[0122] In one embodiment, the first signaling includes some or all of the fields within ConfiguredGrantConfig IE, and the rrc-ConfiguredUplinkGrant field within the first signaling indicates the type of uplink grant.

[0123] In one embodiment, the first signaling includes configuration information relating to an uplink grant for a first cell.

[0124] In one sub-embodied embodiment of this design, the configuration information includes one or more of the following: frequency hopping, modulation and coding scheme (MCS), power control, conversion precoder, hybrid automatic retransmission request process number (HARQ process number), demodulation reference signal (DMRS), time-domain resources, frequency-domain resources, antenna ports, and sounding reference signal (SRS) resource indications.

[0125] As one embodiment, the first signaling shows the first configured grant configuration.

[0126] In one embodiment, the first timer is a MAC layer timer.

[0127] In one embodiment, the first timer is maintained at the MAC layer.

[0128] In one embodiment, the first timer is a time alignment timer.

[0129] In one embodiment, the first timer is used to maintain uplink time alignment.

[0130] In one embodiment, a first timer is used to determine whether the uplink timing is maintained.

[0131] In one embodiment, the first timer is used to maintain uplink time alignment with the first node serving cell.

[0132] In one embodiment, a first timer is used to determine whether the uplink timing with the first node serving cell is maintained.

[0133] In one embodiment, the first timer includes a timeAlignmentTimer.

[0134] In one embodiment, the first timer includes a timeAlignmentTimer in the MAC layer.

[0135] In one embodiment, the first timer is configured in the first cell.

[0136] In one embodiment, the first timer is configured in a first timing advance group (TAG), and the first TAG includes a first cell.

[0137] In one embodiment, a first timer is associated with a first TAG, and one or more cells corresponding to the first TAG include a first cell.

[0138] In one sub-embodiment of this embodiment, the first TAG is a primary timing advance group (PTAG).

[0139] In one lower embodiment of this design, the first TAG is a secondary timing advance group (STAG).

[0140] In one sub-embodiment of this embodiment, one or more cells corresponding to the first TAG use the same timing reference cell and the same timing advance.

[0141] In one sub-embodiment of this embodiment, when the first timer is executed, the uplink times of one or more cells corresponding to the first TAG are considered aligned.

[0142] The meaning of "consider" as one dependent embodiment of this subordinate embodiment includes "to take into consideration".

[0143] The meaning of "consider" as one dependent embodiment of this subordinate embodiment includes "assume".

[0144] As a dependent embodiment of this lower embodiment, when the first timer is executed, the uplink times of the first cell are considered aligned.

[0145] In one sub-embodiment of this embodiment, when the first timer terminates, the uplink times of one or more cells corresponding to the first TAG are considered to be out of sync.

[0146] In one dependent embodiment of this lower embodiment, when the first timer terminates, the uplink time of the first cell is considered to be out of sync.

[0147] In one embodiment, one or more cells contained within any two different TAGs are orthogonal.

[0148] In one embodiment, the first timer terminates when its value is 0.

[0149] In one embodiment, the first timer end value can be configured.

[0150] In one embodiment, the first timer end value is pre-configured.

[0151] In one embodiment, the end value of the first timer is predefined.

[0152] In one embodiment, the phrase "in response to the termination of the first timer" includes the period after the first timer has terminated.

[0153] In one embodiment, the phrase "in response to the termination of the first timer" includes at least "after the first timer has terminated."

[0154] In one embodiment, the phrase "in response to the termination of the first timer" includes the meaning of "when the first timer terminates."

[0155] In one embodiment, the phrase "in response to the termination of the first timer" includes the case where the first timer terminates.

[0156] In one embodiment, in response to the termination of the first timer, the uplink grant to at least the first cell is cleared.

[0157] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing uplink grants configured for the first cell.

[0158] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing all configured grant configurations set up for the first cell.

[0159] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing configured uplink grants configured for the first cell, where uplink grants include configured uplink grants.

[0160] In one embodiment, the behavior of "clearing the uplink grant for at least the first cell" includes clearing the uplink grants configured for all cells in the cell group corresponding to the first cell.

[0161] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing all configured grant configurations that have been set up for all cells in the cell group corresponding to the first cell.

[0162] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing all configured uplink grants configured for all cells in the cell group corresponding to the first cell.

[0163] In one embodiment, the cell group corresponding to the first cell of this application is a single PTAG, and the PTAG includes the first cell.

[0164] In one embodiment, the cell group corresponding to the first cell of this application is one STAG, and the STAG includes the first cell.

[0165] In one embodiment, a first timer is associated with a first TAG, and one or more cells corresponding to the first TAG include the first cell. The behavior of "clearing uplink grants for at least the first cell" includes clearing uplink grants configured for one or more cells corresponding to the first TAG.

[0166] In one embodiment, a first timer is associated with a first TAG, and one or more cells corresponding to the first TAG include the first cell. The behavior of "clearing uplink grants for at least the first cell" includes clearing all configured grant configurations set up for one or more cells corresponding to the first TAG.

[0167] In one embodiment, a first timer is associated with a first TAG, and one or more cells corresponding to the first TAG include the first cell. The behavior of "clearing uplink grants for at least the first cell" includes clearing configured uplink grants configured for one or more cells corresponding to the first TAG.

[0168] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing uplink grants configured for all cells corresponding to the first node.

[0169] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing all configured grant configurations that have been set up for all cells corresponding to the first node.

[0170] In one embodiment, the behavior of "clearing uplink grants for at least the first cell" includes clearing all configured uplink grants configured for all cells corresponding to the first node.

[0171] As one of the three embodiments described above, all cells corresponding to the first node include all serving cells configured in the first node.

[0172] As one of the three embodiments described above, all cells corresponding to the first node include all candidate cells configured in the first node.

[0173] In one embodiment, the second signaling is MAC layer signaling.

[0174] In one embodiment, the second signaling includes a MAC protocol data unit (PDU).

[0175] In one embodiment, the second signaling is a MAC PDU.

[0176] In one embodiment, the second signaling includes a MAC subheader.

[0177] In one embodiment, the second signaling is a MAC subheader.

[0178] In one embodiment, the second signaling includes a MAC control element (CE).

[0179] In one embodiment, the second signaling is MAC CE.

[0180] In one embodiment, the second signaling is physical layer signaling.

[0181] In one embodiment, the second signaling is physical layer control signaling.

[0182] In one embodiment, the second signaling includes side link control information (SCI).

[0183] In one embodiment, the second signaling is SCI.

[0184] In one embodiment, the second signaling includes slot format indication (SFI).

[0185] In one embodiment, the second signaling is SFI.

[0186] In one embodiment, the second signaling includes a physical downlink control channel (PDCCH) order.

[0187] In one embodiment, the second signaling includes an extended PDCCH order.

[0188] In one embodiment, the second signaling includes information from one or more fields within the downlink control information (DCI).

[0189] In one embodiment, the second signaling is DCI.

[0190] In one embodiment, the second signaling includes a random access response (RAR).

[0191] In one embodiment, the second signaling includes message B (Msg B).

[0192] In one embodiment, the second signaling includes a timing advance command.

[0193] In one sub-embodied embodiment of this design, a timing advance command is used to determine the timing advance (TA) value of the first node during an uplink transmission to the first cell.

[0194] In one dependent embodiment of this lower embodiment, the first node starts transmitting the corresponding uplink frame at a time indicated by the TA value, prior to the start of the downlink frame.

[0195] As one sub-embodiment of this embodiment, the timing advance command uses an index value T A This indicates T A This is used to control the timing adjustment.

[0196] In one sub-embodied version of this embodiment, a second signaling is used to indicate a TAG, and a timing advance command is applied to the TAG.

[0197] As a dependent embodiment of this embodiment, TAG is the first TAG in this application.

[0198] In one embodiment, the second signaling includes a timing advance command MAC CE.

[0199] In one embodiment, the second signaling is the absolute timing advance command MAC. Includes CE.

[0200] In one embodiment, the second signaling is cell handover signaling.

[0201] In one embodiment, the second signaling is cell handover signaling triggered by the MAC layer.

[0202] In one embodiment, the second signaling includes a cell switch command.

[0203] In one embodiment, the second signaling is an LTM cell switch.

[0204] In one embodiment, the name of the second signaling includes "LTM".

[0205] In one embodiment, the name of the second signaling includes "L1".

[0206] In one embodiment, the name of the second signaling includes "L2".

[0207] In one embodiment, the name of the second signaling includes "L2".

[0208] In one embodiment, the name of the second signaling includes "triggered".

[0209] In one embodiment, the name of the second signaling includes "switch".

[0210] In one embodiment, the name of the second signaling includes "mobility".

[0211] In one embodiment, the phrase "in response to receiving the second signaling" includes "after receiving the second signaling."

[0212] In one embodiment, the phrase "in response to receiving the second signaling" includes at least "after receiving the second signaling."

[0213] In one embodiment, the phrase "in response to receiving the second signaling" includes the meaning of "when receiving the second signaling."

[0214] In one embodiment, the phrase "in response to receiving a second signaling" includes the case where a second signaling is received.

[0215] In one embodiment, the behavior of "handover to the first cell" includes the first cell becoming the serving cell of the first node.

[0216] In one embodiment, the meaning of the behavior "handover to the first cell" includes "handing over to the first cell."

[0217] In one embodiment, the behavior of "handover to the first cell" includes handing over to the first cell via the protocol layer below the RRC layer.

[0218] In one embodiment, the behavior of "handover to the first cell" includes handing over to the first cell via L1 / L2 mobility.

[0219] In one embodiment, the behavior of "handover to ~" is dynamic.

[0220] In one embodiment, a second signaling is used to indicate the first cell.

[0221] In one embodiment, a second signaling is used to determine the PCID of the first cell.

[0222] In one embodiment, the second signaling is used to indicate the PCID of the first cell.

[0223] In one embodiment, the meaning of "activate" includes enabling or re-enabling.

[0224] In one embodiment, the meaning of "activation" includes a trigger.

[0225] In one embodiment, the meaning of "activation" includes activation or reactivation.

[0226] In one embodiment, the meaning of "activate" includes starting or restarting.

[0227] In one embodiment, when the uplink grant configured by the first signaling is not activated, the uplink grant configured by the first signaling cannot be executed.

[0228] In one embodiment, when the uplink grant configured by the first signaling is not activated, data cannot be transmitted using the physical uplink shared channel (PUSCH) corresponding to the uplink grant configured by the first signaling.

[0229] In one embodiment, when the uplink grant configured by the first signaling is not activated, the physical uplink shared channel (PUSCH) corresponding to the uplink grant configured by the first signaling is not transmitted.

[0230] In one embodiment, the behavior of "activating the uplink grant configured by the first signaling" means that when data is transmitted, the data is transmitted using the uplink grant configured by the first signaling.

[0231] In one embodiment, the behavior of "activating the uplink grant configured by the first signaling" means that when data is transmitted, the data is transmitted using the PUSCH corresponding to the uplink grant configured by the first signaling.

[0232] In one embodiment, the logical channel corresponding to the data is configured to make available an uplink grant configured by a first signaling.

[0233] In one embodiment, the allowedCG-List used to configure a logical channel corresponding to data includes an index of the configured grants indicated by a first signaling.

[0234] Embodiment 2 Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the present application, as shown in Figure 2.

[0235] Figure 2 illustrates the network architectures of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architectures of LTE, LTE-A, and future 5G systems are called EPS (Evolutionary Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS200 or some other preferred term. 5GS / EPS200 may include one or more UE201, UE241 (which communicates with UE201 via sidelink), NG-RAN (Next Generation Radio Access Network)202, 5G-CN (5G Core Network) / EPC (Evolutionary Packet Core)210, HSS (Home Subscriber Server) / UDM (Unified Data Management)220, and Internet services230. 5GS / EPS200 may be interconnected with other access networks, but for brevity, these entities / interfaces are shown separately. The face is not shown. As shown in Figure 2, the 5GS / EPS200 provides packet-switched services, but those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. The NG-RAN202 includes an NR node B (gNB)203 and other gNB204. The gNB203 provides user plane and control plane protocol termination to the UE201. The gNB203 may be connected to other gNB204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver point), or several other preferred terms. The gNB203 provides the UE201 with an access point to the 5G-CN / EPC210. Examples of UE201 include mobile phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, mechanical communication devices, land vehicles, automobiles, wearable devices, or any other devices with similar functions. Those skilled in the art may also refer to UE201 as mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or any other preferred term. gNB203 is connected to 5G-CN / EPC210 via the S1 / NG interface.The 5G-CN / EPC210 includes a Mobility Management Entity (MME) / Authentication Management Field (AMF) / Session Management Function (SMF)211, another MME / AMF / SMF214, a Service Gateway (S-GW) / User Plane Function (UPF)212, and a Packet Data Network Gateway (P-GW) / UPF213. The MME / AMF / SMF211 is the control node that handles signaling between the UE201 and the 5G-CN / EPC210. ​​Generally, the MME / AMF / SMF211 provides bearer management and connection management. All user IP (Internet Protocol) packets are transmitted via the S-GW / UPF212, which itself is connected to the P-GW / UPF213. The P-GW provides UE IP address assignment and other functions. The P-GW / UPF213 is connected to the Internet service 230. Internet services 230 include the operator's corresponding Internet Protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched services.

[0236] In one embodiment, the first node in this application includes UE201.

[0237] In one embodiment, the second node in this application includes gNB203.

[0238] In one embodiment, the UE201 supports relay transmission.

[0239] In one embodiment, UE201 is / includes a mobile phone.

[0240] In one embodiment, UE201 is a vehicle including an automobile / a vehicle including an automobile.

[0241] In one embodiment, the gNB203 is a macrocell base station.

[0242] In one embodiment, the gNB203 is a microcell base station.

[0243] As one embodiment, gNB203 is a picocell base station.

[0244] In one embodiment, gNB203 is a femtocell.

[0245] In one embodiment, the gNB203 is a base station device that supports large latency differences.

[0246] In one embodiment, the gNB203 is a single flight platform device.

[0247] In one embodiment, the gNB203 is a satellite device.

[0248] In one embodiment, the gNB203 is a test device (such as a transceiver that simulates some function of a base station, and a signaling tester).

[0249] In one embodiment, the wireless link from UE201 to gNB203 is an uplink, and the uplink is used to perform uplink transmission.

[0250] In one embodiment, the wireless link from gNB203 to UE201 is a downlink, and the downlink is used to perform downlink transmission.

[0251] In one embodiment, the wireless link between UE201 and gNB203 includes a cellular network link.

[0252] In one embodiment, the UE201 and gNB203 are connected via a Uu air interface.

[0253] In one embodiment, the source of the first signaling includes gNB203.

[0254] In one embodiment, the recipient of the first signaling includes UE201.

[0255] In one embodiment, the source of the second signaling includes gNB203.

[0256] In one embodiment, the recipient of the second signaling includes UE201.

[0257] In one embodiment, the source of the first signal includes UE201.

[0258] In one embodiment, the receiving destination of the first signal includes gNB203.

[0259] In one embodiment, the UE201 supports cell-level mobility based on L1 / L2.

[0260] In one embodiment, the UE201 supports L1 / L2 mobility between the serving cell and the target cell.

[0261] In one embodiment, the UE201 supports beam-level mobility between the serving cell and the target cell.

[0262] In one embodiment, the UE201 supports beam management between the serving cell and the target cell.

[0263] In one embodiment, the UE201 supports L1 / L2 beam management between the serving cell and the target cell.

[0264] In one embodiment, the UE201 supports multi-TRP between cells.

[0265] Embodiment 3 Embodiment 3, as shown in Figure 3, illustrates a schematic diagram of one embodiment of a wireless protocol architecture for a user plane and a control plane according to one embodiment of the present application.

[0266] Figure 3 is a schematic diagram illustrating one embodiment of the radio protocol architecture used in the user plane 350 and the control plane 300. Figure 3 presents the radio protocol architecture of the control plane 300 used between a first communication node device (a V2X (Vehicle-to-Everything) UE or RSU (Roadside Unit), onboard device, or onboard communication module) and a second node device (a V2X gNB, UE, or RSU, onboard device, or onboard communication module), or between two UEs using three layers, namely layer 1 (L1), layer 2 (L2), and layer 3 (L3). Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 is referred to herein as PHY 301. L2 305 is above PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs via PHY 301. L2 305 includes MAC sublayer 302, RLC (Radio Link Control) sublayer 303, and PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through packet data encryption and handover support between the second and first communication node devices. RLC sublayer 303 provides splitting and reassembly of upper-layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception caused by HARQ. MAC sublayer 302 provides multiplexing between logical channels and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within cells between the first and first communication node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC sublayer 306 in L3 of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device.The wireless protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). With respect to the wireless protocol architecture used between the first and second communication node devices of the user plane 350, the physical layer 351, the PDCP sublayer 354 of L2 355, the RLC sublayer 353 of L2 355, and the MAC sublayer 352 of L2 355 are generally the same as the corresponding layers and sublayers of the control plane 300, except that the PDCP sublayer 354 also provides header compression to upper-layer data packets to reduce wireless transmission overhead. L2 355 of the user plane 350 also includes the SDAP (Service Data Adaptive Protocol) sublayer 356, which is responsible for mapping between QoS (Quality of Service) streams and data radio bearers (DRBs) to support service diversity. Although not shown in the diagram, the first communication node device may have multiple higher layers above L2 355, which include a network layer (e.g., IP layer) that terminates at the network-side P-GW and an application layer that terminates at the other end of the connection (e.g., a remote UE, server, etc.).

[0267] As one embodiment, the wireless protocol architecture shown in Figure 3 is provided for the first node of this application. Applicable.

[0268] As one embodiment, the wireless protocol architecture shown in Figure 3 is applicable to the second node of this application.

[0269] In one embodiment, the first signaling is generated in RRC306.

[0270] In one embodiment, the second signaling is generated in PHY301.

[0271] In one embodiment, the second signaling is generated in MAC sublayer 302 or MAC sublayer 352.

[0272] As an embodiment, the high level in the present application refers to the layer above the physical layer.

[0273] As an embodiment, the high level in the present application includes the MAC layer.

[0274] As an embodiment, the high level in the present application includes the RRC layer.

[0275] As an embodiment, the protocol layer below the RRC layer in the present application includes the MAC layer.

[0276] As an embodiment, the protocol layer below the RRC layer in the present application includes the physical layer.

[0277] Embodiment 4 Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in FIG. 4. FIG. 4 is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other within an access network.

[0278] The first communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitting device / receiving device 418, and an antenna 420.

[0279] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitting device / receiving device 454, and an antenna 452.

[0280] In transmission from the first communication device 410 to the second communication device 450, the first communication device 410 provides upper-layer data packets from the core network to the controller / processor 475. The controller / processor 475 implements L2 functions. In DL, the controller / processor 475 provides header compression, encryption, packet splitting and reordering, multiplexing between logical channels and transport channels, and radio resource allocation to the second communication device 450, based on various priority metrics. The controller / processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and multi-antenna transmit processor 471 implement various signal processing functions for L1 (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) in the second communication device 450, as well as various modulation schemes (e.g., two-phase shift modulation (BPSK), four-phase shift modulation (QP)). The system implements signal cluster mapping based on SK, M-PSK, and M-QAM. The multi-antenna transmit processor 471 performs digital space precoding of the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses the Fast Fourier Inverse Transform (IFFT) to generate a physical channel that carries the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmit device 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to a different antenna 420.

[0281] In transmission from the first communication device 410 to the second communication device 450, each receiving device 454 in the second communication device 450 receives the signal via its corresponding antenna 452. Each receiving device 454 reconstructs the information modulated on the radio frequency carrier, converts the radio frequency stream into a baseband multicarrier 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 L1. The multi-antenna receiving processor 458 performs a receive analog precoding / beamforming operation on the baseband multicarrier symbol stream from the receiving device 454. After the receive analog precoding / beamforming operation, the receiving processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and reference signal are demultiplexed by the receiving processor 456. The reference signal is used for channel estimation, and the data signal undergoes multi-antenna detection in the multi-antenna receiving processor 458 to reconstruct an arbitrary parallel stream destined for the second communication device 450. Symbols on each parallel stream are demodulated and reconstructed in the receiving processor 456 to generate a soft decision. The receiving processor 456 then decodes and deinterleaves the soft decision to reconstruct the upper-layer data and control signals transmitted over the physical channel by the first communication device 410. The upper-layer data and control signals are then provided to the controller / processor 459, which implements L2 functionality. The controller / processor 459 may be associated with a memory 460 for storing program code and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides demultiplexing between the transport channel and logical channel, packet reassembly, decoding, header decompression, and control signal processing to reconstruct upper-layer data packets from the core network. These upper-layer data packets are then provided to all protocol layers above L2.Various control signals may be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using acknowledgment (ACK) and / or negation acknowledgment (NACK) protocols to support HARQ operation.

[0282] In transmission from the second communication device 450 to the first communication device 410, the second communication device 450 uses a data source 467 to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmission functions of the first communication device 410 as described for DL, the controller / processor 459 performs header compression, encryption, packet splitting and reordering, as well as multiplexing between logical channels and transport channels, based on the radio resource allocation of the first communication device 410, and user plane and implements L2 functions of the control plane. Controller / processor 459 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, and multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Transmit processor 468 modulates the resulting parallel streams into multi-carrier / single-carrier symbol streams. These streams undergo analog precoding / beamforming operation in multi-antenna transmit processor 457 before being provided to different antennas 452 via transmit devices 454. Each transmit device 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides the radio frequency symbol stream to antenna 452.

[0283] In transmission from the second communication device 450 to the first communication device 410, the functions in the first communication device 410 are similar to the receiving functions in the second communication device 450 as described for transmission from the first communication device 410 to the second communication device 450. Each receiving device 418 receives radio frequency signals via its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly perform L1 functions. The controller / processor 475 implements L2 functions. The controller / processor 475 may be associated with a memory 476 for storing program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 reconstructs upper-layer data packets from the second communication device 450 by providing demultiplexing between the transmit channel and logical channel, packet reassembly, decoding, header decompression, and control signal processing. The upper-layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using the ACK and / or NACK protocols to support HARQ operation.

[0284] In one embodiment, the second communication device 450 comprises at least one processor and at least one memory, the at least one memory containing 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 450 receives at least a first signaling, the first signaling being an RRC signaling, which is used to configure an uplink grant to a first cell, and in response to the end of a first timer, clears at least the uplink grant to the first cell, receives a second signaling, the second signaling being a DCI or MAC CE, and in response to receiving the second signaling, hands over to the first cell, the handover behavior to the first cell includes activating the uplink grant configured by the first signaling.

[0285] In one embodiment, the second communication device 450 includes a memory for storing a computer-readable instruction program that, when executed by at least one processor, generates an action, the action includes receiving a first signaling, clearing an uplink grant to at least a first cell, receiving a second signaling, and handing over to the first cell.

[0286] In one embodiment, the first communication device 410 includes at least one processor and a small The device comprises at least one memory, and at least one memory containing computer program code. The at least one memory and the computer program code are configured to be used in conjunction with at least one processor. The first communication device 410 transmits at least a first signaling, the first signaling being an RRC signaling, which is used to establish an uplink grant to a first cell, and a second signaling, the second signaling being a DCI or MAC CE. The recipients of the first and second signalings include a second communication device 450. In response to the end of the first timer, the second communication device 450 clears at least the uplink grant to the first cell. In response to receiving the second signaling, the second communication device 450 hands over to the first cell, and the handover behavior to the first cell includes activating the uplink grant configured by the first signaling.

[0287] In one embodiment, the first communication device 410 includes a memory that stores a computer-readable instruction program that, when executed by at least one processor, generates an action, the action includes transmitting a first signaling signal and transmitting a second signaling signal.

[0288] In one embodiment, the first node in this application comprises a second communication device 450.

[0289] In one embodiment, the second node in this application comprises a first communication device 410.

[0290] In one embodiment, at least one of {antenna 420, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, or memory 476} is used to transmit a first signaling, and at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467} is used to receive the first signaling.

[0291] In one embodiment, at least one of {antenna 420, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, or memory 476} is used to transmit a second signaling, and at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467} is used to receive the second signaling.

[0292] In one embodiment, in response to the termination of a first timer, at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467} is used to clear the uplink grant to at least a first cell.

[0293] In one embodiment, in response to receiving a second signaling, at least one of {antenna 452, transmitting device 454, transmitting processor 468, multi-antenna transmitting processor 457, controller / processor 459, memory 460, or data source 467} is used for handover to the first cell.

[0294] Embodiment 5 Embodiment 5 shows a first flowchart of the transmission between the first node and the second node according to an embodiment of the present application. In FIG. 5, the communication is performed between the first node U1 and the second node N2 via a wireless link. It should be particularly noted that the order in this embodiment does not limit the signal transmission order and the implementation order in the present application. As long as there is no contradiction, the embodiments, sub-embodiments, and dependent embodiments of Embodiment 5 can be applied to Embodiment 6. On the contrary, as long as there is no contradiction, the embodiments, sub-embodiments, and dependent embodiments of Embodiment 6 can be applied to Embodiment 5.

[0295] For the first node U1, in step S510, the first signaling is received; in step S511, in response to the expiration of the first timer, at least the uplink grant for the first cell is cleared; in step S512, the second signaling is received; in step S513, in response to receiving the second signaling, the first cell is handed over.

[0296] For the second node N2, in step S520, the first signaling is transmitted; in step S521, the second signaling is transmitted.

[0297] In Embodiment 5, the first signaling is RRC signaling, the first signaling is used to configure the uplink grant for the first cell, the second signaling is MAC layer signaling or physical layer signaling, and the behavior of handing over to the first cell includes activating the uplink grant configured by the first signaling.

[0298] As an embodiment, the first node U1 is the first node in the present application.

[0299] As an embodiment, the second node N2 is the second node in the present application.

[0300] In one embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between the base station device and the user equipment.

[0301] In one embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between the relay node device and the user equipment.

[0302] In one embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user devices.

[0303] In one embodiment, step S511 further includes determining that the first timer has finished.

[0304] In one sub-embodiment of this embodiment, the value of the first timer is 0, and the first timer terminates.

[0305] In one sub-embodiment of this embodiment, the end value of the first timer is used to determine when the first timer has finished.

[0306] In one embodiment, the first signaling is transmitted over a downlink physical data channel (i.e., a downlink channel that can be used to carry physical layer data).

[0307] In one embodiment, the physical layer channel occupied by the first signaling includes a physical downlink shared channel (PDSCH).

[0308] In one embodiment, the second signaling is transmitted over a downlink physical control channel (i.e., a downlink channel that can be used solely for carrying physical layer control signaling).

[0309] In one embodiment, the physical layer channel occupied by the second signaling includes a physical downlink control channel (PDCCH).

[0310] Embodiment 6 Embodiment 6 shows a second flowchart of transmission between a first node and a second node according to one embodiment of the present application. In Figure 6, communication takes place between the first node U3 and the second node N4 via a wireless link. It should be noted that the order in this embodiment is not limited to the signal transmission order and implementation order in the present application. To the extent that no inconsistencies arise, embodiments, sub-embodiments, and dependent embodiments of Embodiment 6 can be applied to Embodiment 5. Conversely, to the extent that no inconsistencies arise, embodiments, sub-embodiments, and dependent embodiments of Embodiment 5 can be applied to Embodiment 6.

[0311] With respect to the first node U3, in step S630, the first signal is transmitted within the first time-frequency resource set.

[0312] For the second node N4, in step S640, the first signal is received within the first time-frequency resource set.

[0313] In Embodiment 6, the uplink grant configured for the first signaling is used to determine the first time-frequency resource set.

[0314] In one embodiment, the first node U3 is the first node in this application.

[0315] In one embodiment, the second node N4 is the second node in this application.

[0316] In one embodiment, the air interface between the second node N4 and the first node U3 includes a wireless interface between the base station device and the user equipment.

[0317] In one embodiment, the air interface between the second node N4 and the first node U3 includes a wireless interface between the relay node device and the user equipment.

[0318] In one embodiment, the air interface between the second node N4 and the first node U3 includes a wireless interface between user devices.

[0319] In one embodiment, the first time-frequency resource set includes a positive integer number of resource elements (REs).

[0320] In one embodiment, the first time-frequency resource set occupies subcarriers corresponding to a positive integer number of resource blocks (RBs) in the frequency domain.

[0321] In one embodiment, the first time-frequency resource set occupies subcarriers corresponding to a positive integer number of consecutive RBs in the frequency domain.

[0322] In one embodiment, the first time-frequency resource set occupies non-contiguous RBs in the frequency domain.

[0323] In one embodiment, the first time-frequency resource set occupies a positive integer number of orthogonal frequency division multiplexing (OFDM) symbols in the time domain.

[0324] In one embodiment, the first time-frequency resource set occupies a positive integer number of consecutive OFDM symbols in the time domain.

[0325] In one embodiment, the first time-frequency resource set occupies non-contiguous OFDM symbols in the time domain.

[0326] In one embodiment, an uplink grant configured for a first signaling is used to determine a first time-frequency resource set.

[0327] In one embodiment, one configured grant configuration of an uplink grant configured for a first signaling is used to determine a first time-frequency resource set.

[0328] In one embodiment, the first signaling includes configuration information relating to an uplink grant, and the configuration information includes a first time-frequency resource set.

[0329] In one embodiment, the first node does not need to receive the scheduling of the dynamic signaling of the first signal before transmitting the first signal within the first time-frequency resource set.

[0330] In one sub-embodiment of this embodiment, the dynamic signaling of the first signal includes DCI.

[0331] In one sub-embodiment of this embodiment, the dynamic signaling of the first signal includes a RAR UL grant.

[0332] In one sub-embodiment of this embodiment, the dynamic signaling of the first signal includes a fallback RAR UL grant.

[0333] In one embodiment, the first node does not need to receive an RRC-based reconfiguration of the configured grant configuration associated with the first time-frequency resource set before transmitting the first signal within the first time-frequency resource set.

[0334] As one sub-embodied embodiment of this specification, “RRC-based reconfiguration of a configured grant configuration associated with a first time-frequency resource set” includes some or all of the fields within the RRCreconfiguration IE.

[0335] As one sub-embodied embodiment of this configuration, “RRC-based reconfiguration of a configured grant configuration associated with a first time-frequency resource set” includes some or all of the fields within RRCReestablishment IE.

[0336] As one sub-embodiment of this embodiment, “RRC-based reconfiguration of a configured grant configuration associated with a first time-frequency resource set” includes some or all of the fields within RRCResume IE.

[0337] As one sub-embodiment of this embodiment, “RRC-based reconfiguration of a configured grant configuration associated with a first time-frequency resource set” includes some or all of the fields within the RRCSetup IE.

[0338] As one sub-embodiment of this embodiment, “RRC-based reconfiguration of a configured grant configuration associated with a first time-frequency resource set” includes some or all fields within ConfiguredGrantConfig IE.

[0339] In one embodiment, the first node needs to activate the uplink grant configured by the first signaling before transmitting the first signal within the first time-frequency resource set.

[0340] In one sub-embodiment of this embodiment, a second signaling is used to activate an uplink grant configured by the first signaling.

[0341] In one embodiment, step S630 is after step S513 of Embodiment 5 of this application, which performs a handover to the first cell, and step S640 is after step S522 of Embodiment 5 of this application, which transmits a second signaling.

[0342] In one embodiment, step S630 is after step S510 of Embodiment 5 of this application, which receives a first signaling, and step S640 is before step S520 of Embodiment 5 of this application, which transmits a second signaling.

[0343] In one embodiment, step S630 is prior to step S511 of Embodiment 5 of the present application, which clears at least the uplink grant to the first cell in response to the end of the first timer, and step S640 is prior to step S520 of Embodiment 5 of the present application, which transmits a second signaling.

[0344] In one embodiment, when a first node transmits a first signal within a first time-frequency resource set, a first timer is executed.

[0345] In one embodiment, when the first node transmits a first signal within the first time-frequency resource set, the first timer does not terminate.

[0346] In one embodiment, when a first node transmits a first signal within a first time-frequency resource set, the first node is uplink-synchronized with a first cell.

[0347] In one embodiment, the first signal includes a baseband signal.

[0348] In one embodiment, the first signal includes a radio frequency signal.

[0349] In one embodiment, the first signal includes a wireless signal.

[0350] In one embodiment, the first signal corresponds to one uplink grant.

[0351] In one embodiment, the first signal corresponds to the transmission of a single configured grant.

[0352] In one embodiment, the first signal corresponds to the transmission of a single type 1 configured grant.

[0353] In one embodiment, the first signal corresponds to one uplink grant corresponding to one type 1 configured grant.

[0354] In one embodiment, the first signal is transmitted over the first cell.

[0355] In one embodiment, the first time-frequency resource occupied by the first signal belongs to the air interface resource of the first cell.

[0356] In one embodiment, the air interface resource in this application includes a time-domain resource.

[0357] In one embodiment, the air interface resources in this application include frequency domain resources.

[0358] In one embodiment, the air interface resource in this application includes a code area resource.

[0359] In one embodiment, the air interface resource in this application includes a spatial domain resource.

[0360] In one embodiment, the first node U3 transmits a first signal on the first cell.

[0361] In one embodiment, the second node N4 receives the first signal on the first cell.

[0362] In one embodiment, the first node transmits a first signal within a first time-frequency resource set according to the timing advance (TA) of the first cell.

[0363] In one embodiment, the physical layer channel corresponding to the first signal includes a physical uplink shared channel (PUSCH).

[0364] In one embodiment, the transmission channel corresponding to the first signal includes an uplink shared channel (UL-SCH).

[0365] Embodiment 7 Embodiment 7 illustrates a schematic diagram of a first node according to one embodiment of the present application, as shown in Figure 7. In Figure 7, in step 701, the first node performs a handover to acquire the first serving cell.

[0366] In one embodiment, performing a handover to acquire something refers to replacing it.

[0367] In one embodiment, performing a handover to acquire data refers to passing it on to the next person.

[0368] In one embodiment, performing a handover to acquire data refers to a change in state.

[0369] In one embodiment, performing a handover to acquire something refers to positioning oneself outside the system.

[0370] In one embodiment, the handover process for acquisition is dynamic.

[0371] In one embodiment, the first serving cell is the first cell.

[0372] In one embodiment, the first serving cell is a cell other than the first cell.

[0373] In one embodiment, the meaning of performing a handover to obtain a first serving cell includes performing a handover from the first serving cell to a second serving cell, wherein the second serving cell is different from the first serving cell.

[0374] In one embodiment, the meaning of step 701, "perform a handover to obtain the first serving cell," includes the state that the first serving cell is no longer the serving cell of the first node.

[0375] In one embodiment, the meaning of step 701, "perform a handover to obtain a first serving cell," includes the first serving cell becoming a candidate cell for the first node.

[0376] In one embodiment, the meaning of step 701, "perform a handover to obtain a first serving cell," includes the first serving cell being obtained by the handover.

[0377] In one embodiment, the meaning of step 701, "perform a handover to acquire a first serving cell," includes the first serving cell being acquired by a handover via L1 / L2 mobility.

[0378] In one embodiment, step 701, "performing a handover to obtain a first serving cell," is after step S510 of Embodiment 5 of this application, which receives a first signaling, and before step S512, which receives a second signaling.

[0379] In one sub-embodiment of this embodiment, the first serving cell is the first cell, the serving cell of the first node changes from the first cell to the second serving cell of this application, and the second serving cell is a cell other than the first serving cell.

[0380] In one embodiment, step 701, "performing a handover to acquire a first serving cell," follows step S512 of Embodiment 5 of the present application, which receives a second signaling.

[0381] As a sub-embodiment of this embodiment, step S513 of Embodiment 5 of this application, which performs a handover to a first cell, includes step 701 of performing a handover to obtain the first serving cell.

[0382] In one dependent embodiment of this lower embodiment, the serving cell of the first node changes from the first serving cell to the first cell, and the first serving cell is a cell other than the first cell.

[0383] In one embodiment, the second signaling originates from the second serving cell of the present application.

[0384] In one embodiment, the second signaling originates from the first cell.

[0385] In one embodiment, the first node decides to perform a handover to acquire the first serving cell for measurement in the first serving cell.

[0386] In one sub-embodied embodiment of this design, the measurement in the first serving cell includes a layer 1 reference signal received power (L1-RSRP) measurement.

[0387] In one sub-embodied embodiment of this design, the measurement in the first serving cell includes a layer 3 reference signal received power (L3-RSRP) measurement.

[0388] In one sub-embodiment of this embodiment, the measurement in the first serving cell includes a layer 1 signal-to-noise and interference ratio (L1-SINR) measurement.

[0389] In one sub-embodiment of this embodiment, the measurement in the first serving cell includes a layer 3 signal-to-noise and interference ratio (L3-SINR) measurement.

[0390] In one sub-embodied embodiment of this design, the measurement in the first serving cell includes a reference signal reception quality (RSRQ) measurement.

[0391] In one sub-embodied embodiment of this design, the measurement in the first serving cell includes a received signal strength indicator (RSSI) measurement.

[0392] In one sub-embodiment of this embodiment, measurements in the first serving cell are used to evaluate cell selection.

[0393] In one sub-embodiment of this embodiment, measurements in the first serving cell are used to evaluate cell handover.

[0394] In one sub-embodiment of this embodiment, measurements in the first serving cell are used for mobility management.

[0395] In one sub-embodied embodiment of this design, measurements in the first serving cell are used to determine whether to perform a handover to acquire the first serving cell.

[0396] Embodiment 8 Embodiment 8 illustrates a schematic diagram of the end of the first timer according to one embodiment of the present application, as shown in Figure 8. In Figure 8, the gray-filled blocks represent time-domain resources occupied by the first signaling, and the diagonally-filled blocks represent time-domain resources occupied by the second signaling. The end of the first timer occurs after the first signaling and before the second signaling. Note that the length of the time-domain resources occupied by the first and second signaling in Figure 8 of this embodiment does not limit the length of the time-domain resources occupied by the first and second signaling in the present application.

[0397] In one embodiment, the termination of the first timer occurs after the first signaling and before the second signaling.

[0398] In one embodiment, the characteristic “after the first signaling” includes “after receiving the first signaling.”

[0399] In one embodiment, the characteristic “after the first signaling” includes “after the first signaling has been successfully decoded.”

[0400] In one embodiment, the characteristic "before the second signaling" includes "before receiving the second signaling."

[0401] In one embodiment, the meaning of the characteristic "before the second signaling" includes "before the second signaling is successfully decoded."

[0402] Embodiment 9 Embodiment 9 illustrates a schematic diagram of a time point prior to receiving the second signaling according to one embodiment of the present application, as shown in Figure 9. In Figure 9, the shaded blocks represent time-domain resources occupied by the second signaling. Prior to the second signaling, in the present application, the first node does not receive air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is RRC signaling or DCI.

[0403] In one embodiment, prior to the second signaling, the first node in this application does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is an RRC signaling or DCI.

[0404] In one embodiment, the characteristic of "before the second signaling" includes "before receiving the second signaling."

[0405] In one embodiment, the characteristic of being "before the second signaling" includes being "before successfully decoding the second signaling."

[0406] In one embodiment, the air interface signaling is RRC signaling.

[0407] In one embodiment, "Air interface signaling for activating a configured grant configuration indicated by a first signaling" includes information from some or all fields of a single RRC IE.

[0408] In one embodiment, the "air interface signaling for activating the configured grant configuration indicated by the first signaling" includes some or all of the fields within the RRCreconfiguration IE.

[0409] In one embodiment, the "air interface signaling for activating the configured grant configuration indicated by the first signaling" includes some or all of the fields within the RRCReestablishment IE.

[0410] In one embodiment, the "air interface signaling for activating the configured grant configuration indicated by the first signaling" includes some or all of the fields within the RRCResume IE.

[0411] In one embodiment, "Air interface signaling for activating the configured grant configuration indicated by the first signaling" is RRCSetup I Includes some or all fields within E.

[0412] In one embodiment, the "Air Interface Signaling for Activating the Configured Grant Configuration Indicated by the First Signaling" includes some or all of the fields within ConfiguredGrantConfig IE.

[0413] In one embodiment, the air interface signaling is DCI.

[0414] In one sub-embodiment of this embodiment, the DCI format is DCI format 0_0.

[0415] In one sub-embodiment of this embodiment, the DCI format is DCI format 0_1.

[0416] In one sub-embodiment of this embodiment, the DCI format is DCI format 0_2.

[0417] In one sub-embodied version of this embodiment, the cyclic redundancy check (CRC) of the DCI is scrambled by a configured scheduling (CS)-radio network temporary identifier (RNTI).

[0418] In one sub-embodiment of this embodiment, the Novel Data Indicator (NDI) of the DCI is equal to 0.

[0419] In one sub-embodied embodiment of this design, the "Time Domain Resource Allocation" field of the DCI is used to indicate the start and length indicator values ​​(SLIV).

[0420] In one sub-embodied embodiment of this design, the "HARQ Process Number" field in the DCI is used to indicate the index of the configured grant configuration.

[0421] In one sub-embodied embodiment of this design, the "HARQ Process Number" field in the DCI is used to indicate the ConfiguredGrantConfigIndex of the configured grant configuration.

[0422] As a dependent embodiment of this lower embodiment, the configured grant configuration includes one uplink grant.

[0423] In one sub-embodiment of this embodiment, the "HARQ process number" field in DCI is all zero.

[0424] In one sub-embodiment of this embodiment, the redundant version (RV) fields of the DCI are all zero.

[0425] In one sub-embodied version of this embodiment, there is a DCI "DCI Format Indicator Flag (DFI Flag)" field, where the DCI "DFI Flag" field is 0.

[0426] In one sub-embodiment of this embodiment, the "DFI flag" field does not exist in DCI.

[0427] Embodiment 10 Embodiment 10 illustrates a first schematic diagram of the relationship between a first cell and a first node when the first timer terminates, according to one embodiment of the present application, as shown in Figure 10. In Figure 10, when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

[0428] In one embodiment, the characteristic "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell is a candidate cell for the first node. However, when the termination behavior of the first timer occurs, the first cell does not provide services to the first node.

[0429] In one embodiment, the characteristic "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell is the serving cell of the first node, provided that the first cell is in an inactive state when the termination behavior of the first timer occurs.

[0430] In one embodiment, the characteristic that "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell is not the serving cell of the first node, but rather the first cell is a candidate cell for the first node.

[0431] In one embodiment, the characteristic that "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell is not the serving cell of the first node, but rather the adjacent cell of the first node.

[0432] In one embodiment, the characteristic "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell is not the serving cell of the first node, but rather the first cell supports the L1 / L2-centric cell-level mobility of the first node.

[0433] In one embodiment, the meaning of the characteristic "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" includes the possibility that the first cell is not the serving cell of the first node, but that the first cell can be used by the first node for L1 / L2 inter-cell mobility.

[0434] In one embodiment, the characteristic "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell waits for the first cell to be dynamically identified as the serving cell of the first node, rather than the first cell being the serving cell of the first node.

[0435] In one embodiment, the characteristic that "when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node" means that the first cell is not the serving cell of the first node, and that the first node can be handed over to the first cell through L1 / L2 mobility.

[0436] In one embodiment, the first timer is associated with the first cell.

[0437] In one embodiment, the first timer is associated with the TAG on which the first cell is located.

[0438] Embodiment 11 Embodiment 11 illustrates a second schematic diagram of the relationship between the first cell and the first node when the first timer terminates, according to one embodiment of the present application, as shown in Figure 11. In Figure 11, when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

[0439] In one embodiment, when the first timer terminates, the first cell is the serving cell of the first node.

[0440] In one embodiment, the first cell corresponds to one ServCellIndex.

[0441] In one embodiment, the first cell corresponds to one ServCellId.

[0442] In one embodiment, the first cell corresponds to one ServCellIdentity.

[0443] In one embodiment, ServCellIndex is a non-negative integer less than or equal to 31.

[0444] In one embodiment, SCellIndex is a positive integer less than or equal to 31.

[0445] In one embodiment, the serving cell is a primary cell (PCell).

[0446] In one embodiment, the serving cell is a secondary cell (SCell).

[0447] In one embodiment, the serving cell is a special cell (SpCell).

[0448] In one embodiment, the serving cell is a master cell group (MCG) cell.

[0449] In one embodiment, the serving cell is a secondary cell group (SCG) cell.

[0450] In one embodiment, when one cell is configured in the first node via sCellToAddModList IE, the one cell is the serving cell of the first node, and when one cell is the SpCell of the first node, the one cell is the serving cell of the first node.

[0451] In one embodiment, a cell is not a serving cell of the first node when it is not configured in the first node via sCellToAddModList IE and is not a SpCell of the first node.

[0452] In one embodiment, when a cell is not configured in the first node via sCellToAddModList IE and is not a SpCell of the first node, the cell is a cell other than the serving cell of the first node.

[0453] Embodiment 12 Embodiment 12 illustrates a schematic diagram of a configured grant type according to one embodiment of the present application, as shown in Figure 12. In Figure 12, the candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2.

[0454] In one embodiment, the candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2.

[0455] In one embodiment, the first signaling implicitly indicates the configured grant type.

[0456] In one embodiment, the first signaling includes some or all fields of the ConfiguredGrantConfig IE, and whether the ConfiguredGrantConfig IE includes rrc-ConfiguredUplinkGrant is used to indicate the configured grant type.

[0457] In one sub-embodied embodiment of this design, ConfiguredGrantConfig IE includes an rrc-ConfiguredUplinkGrant field, where the configured grant type indicated by the first signaling is configured grant type 1.

[0458] In one sub-embodiment of this embodiment, ConfiguredGrantConfig IE does not include the rrc-ConfiguredUplinkGrant field, and the configured grant type indicated by the first signaling is configured grant type 2.

[0459] In one embodiment, the configured grant type 1 corresponds to the rrc-ConfiguredUplinkGrant portion of the RRC IE corresponding to the first signaling.

[0460] In one embodiment, the configured grant type 2 corresponds to the portion of the RRC IE other than the rrc-ConfiguredUplinkGrant portion that corresponds to the first signaling.

[0461] In one embodiment, the grant type configured by the first signaling is applied to the uplink grant configured by the first signaling.

[0462] In one embodiment, a first signaling is used to configure an uplink grant to a first cell, and the uplink grant includes one configured grant configuration.

[0463] As one sub-embodiment of this embodiment, the configured grant type of one configured grant configuration is configured grant type 1.

[0464] As one sub-embodiment of this embodiment, the configured grant type of one configured grant configuration is configured grant type 2.

[0465] In one embodiment, a first signaling is used to configure an uplink grant to a first cell, and the uplink grant includes a plurality of configured grant configurations.

[0466] As one of the sub-embodiments of this embodiment, the configured grant type of the multiple configured grant configurations is configured grant type 1.

[0467] As one of the sub-embodiments of this embodiment, the configured grant type of the multiple configured grant configurations is configured grant type 2.

[0468] As one sub-embodiment of this embodiment, the configured grant types of a plurality of configured grant configurations include both configured grant type 1 and configured grant type 2.

[0469] In one embodiment, configured grant type 1 does not require activation via dynamic signaling, while configured grant type 2 requires activation via dynamic signaling.

[0470] In one sub-embodiment of this embodiment, dynamic signaling is DCI.

[0471] As a dependent embodiment of this lower embodiment, the DCI format is DCI format 0_0.

[0472] As a dependent embodiment of this lower embodiment, the DCI format is DCI format 0_1.

[0473] As a dependent embodiment of this lower embodiment, the DCI format is DCI format 0_2.

[0474] As a dependent embodiment of this lower embodiment, the DCI's CRC is scrambled by the CS-RNTI.

[0475] As a dependent embodiment of this lower embodiment, the NDI of DCI is equal to 0.

[0476] As a dependent embodiment of this lower embodiment, the "Time Domain Resource Allocation" field of the DCI is used to indicate a single SLIV.

[0477] As a dependent embodiment of this lower embodiment, the "HARQ Process Number" field in DCI is used to indicate the index of the configured grant configuration.

[0478] As a dependent embodiment of this lower embodiment, the "HARQ process number" field of the configured grant type DCI is used to indicate the ConfiguredGrantConfigIndex of the configured grant configuration.

[0479] As one example of this dependent embodiment, the configured grant configuration includes multiple uplink grants.

[0480] As one dependent embodiment of this lower embodiment, the "HARQ process number" field in DCI is all zero.

[0481] In one dependent embodiment of this lower embodiment, the RV fields of DCI are all zero.

[0482] In one sub-embodied version of this embodiment, there is a "DFI flag" field in the DCI, and the "DFI flag" field in the DCI is 0.

[0483] As a dependent embodiment of this lower embodiment, the "DFI flag" field does not exist in DCI.

[0484] Embodiment 13 Figure 13 illustrates a schematic diagram of a configured grant type indicated by a first signaling, which is configured grant type 1, according to one embodiment of the present application, as shown in Figure 13. In Figure 13, when the configured grant type indicated by the first signaling is configured grant type 1, the “handover to first cell” behavior includes activating the uplink grant configured by the first signaling.

[0485] In one embodiment, when the configured grant type indicated by the first signaling is configured grant type 1, the “handover to first cell” behavior includes activating the uplink grant configured by the first signaling.

[0486] In one embodiment, when the configured grant type indicated by the first signaling is configured grant type 1, the “handover to first cell” behavior includes activating the uplink grant whose configured grant type indicated by the first signaling is configured grant type 1.

[0487] In one embodiment, the “handover to first cell” behavior includes activating an uplink grant whose configured grant type is configured grant type 1, as indicated by the first signaling.

[0488] In one embodiment, the “handover to first cell” behavior includes activating only uplink grant configurations where the configured grant type indicated by the first signaling is configured grant type 1.

[0489] Embodiment 14 Figure 14 illustrates a schematic diagram of a configured grant type indicated by a first signaling, which is configured grant type 2, according to one embodiment of the present application, as shown in Figure 14. In Figure 14, when the configured grant type indicated by the first signaling is configured grant type 2, the “handover to first cell” behavior is not used to activate the configured uplink grant by the first signaling.

number

[0490] In one embodiment, when the configured grant type indicated by the first signaling is configured grant type 2, the “handover to first cell” behavior is not used to activate the uplink grant configured by the first signaling.

[0491] In one embodiment, when the configured grant type indicated by the first signaling is configured grant type 2, the “handover to first cell” behavior is not used to activate the uplink grant whose configured grant type indicated by the first signaling is configured grant type 2.

[0492] In one embodiment, the “handover to first cell” behavior is not used to activate an uplink grant whose configured grant type is configured as grant type 2, as indicated by the first signaling.

[0493] In one embodiment, an uplink grant to a first cell configured by a first signaling includes a plurality of configured grant configurations, the configured grant types of the plurality of configured grant configurations include configured grant type 1 and configured grant type 2, and the “handover to the first cell” behavior includes activating the uplink grant in the plurality of configured grant configurations where the configured grant type is configured grant type 1, and not activating the uplink grant in the plurality of configured grant configurations where the configured grant type is configured grant type 2.

[0494] In one embodiment, when the configured grant type indicated by the first signaling is configured grant type 2, the first node needs to receive an air interface signaling to activate configured grant type 2 indicated by the first signaling after the "handover to first cell" behavior.

[0495] In one sub-embodiment of this embodiment, the air interface signaling is DCI.

[0496] As a dependent embodiment of this lower embodiment, the DCI format is DCI format 0_0.

[0497] As a dependent embodiment of this lower embodiment, the DCI format is DCI format 0_1.

[0498] As a dependent embodiment of this lower embodiment, the DCI format is DCI format 0_2.

[0499] As a dependent embodiment of this lower embodiment, the DCI's CRC is scrambled by the CS-RNTI.

[0500] As a dependent embodiment of this lower embodiment, the NDI of DCI is equal to 0.

[0501] As a dependent embodiment of this lower embodiment, the "Time Domain Resource Allocation" field of the DCI is used to indicate a single SLIV.

[0502] As a dependent embodiment of this lower embodiment, the "HARQ Process Number" field in DCI is used to indicate the index of the configured grant configuration.

[0503] As a dependent embodiment of this lower embodiment, the "HARQ process number" field of the configured grant type DCI is used to indicate the ConfiguredGrantConfigIndex of the configured grant configuration.

[0504] As one example of this dependent embodiment, the configured grant configuration includes multiple uplink grants.

[0505] As one dependent embodiment of this lower embodiment, DCI's "HARQ process number" The fields are all zero.

[0506] In one dependent embodiment of this lower embodiment, the RV fields of DCI are all zero.

[0507] In one dependent embodiment of this lower embodiment, a "DFI flag" field exists in the DCI, and the "DFI flag" field of the DCI is 0.

[0508] As a dependent embodiment of this lower embodiment, the "DFI flag" field does not exist in DCI.

[0509] Embodiment 15 Embodiment 15 illustrates a structural block diagram of a processing unit for a first node according to one embodiment of the present application, as shown in Figure 15. In Figure 15, the processing unit 1500 at the first node comprises a first receiver 1501 and a first transmitter 1502.

[0510] In Embodiment 15, the first receiver 1501 receives a first signaling, which is a first signaling, which is an RRC signaling, and the first signaling is used to configure an uplink grant to a first cell, and in response to the end of the first timer, clears the uplink grant to at least the first cell, and receives a second signaling, which is a second signaling, which is a MAC layer signaling or a physical layer signaling, and in response to receiving the second signaling, the first transmitter 1502 hands over to the first cell, and

[0511] In Embodiment 15, the handover behavior to the first cell includes activating the uplink grant configured by the first signaling.

[0512] In one embodiment, the candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2, and the handover behavior to the first cell includes activating the configured uplink grant by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1.

[0513] In one embodiment, the termination of the first timer occurs after the first signaling and before the second signaling.

[0514] In one embodiment, prior to the second signaling, the first node does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is either an RRC signaling or a DCI.

[0515] In one embodiment, when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

[0516] In one embodiment, when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

[0517] In one embodiment, the first receiver 1501 acquires the first serving cell Perform a handover.

[0518] In one embodiment, a first transmitter 1502 transmits a first signal within a first time-frequency resource set, and an uplink grant configured for the first signaling is used to determine the first time-frequency resource set.

[0519] In one embodiment, the second signaling includes a timing advance command.

[0520] In one sub-embodied embodiment of this design, a timing advance command is used to determine the timing advance (TA) value of the first node during an uplink transmission to the first cell.

[0521] In one embodiment, an uplink grant to a first cell configured by a first signaling includes a plurality of configured grant configurations, the configured grant types of the plurality of configured grant configurations include configured grant type 1 and configured grant type 2, and the “handover to the first cell” behavior includes activating the uplink grant in the plurality of configured grant configurations where the configured grant type is configured grant type 1, and not activating the uplink grant in the plurality of configured grant configurations where the configured grant type is configured grant type 2.

[0522] In one embodiment, when the uplink grant configured by the first signaling is not activated, the uplink grant configured by the first signaling cannot be executed.

[0523] In one embodiment, the first node does not need to receive an RRC-based reconfiguration of the configured grant configuration associated with the first time-frequency resource set before transmitting the first signal within the first time-frequency resource set.

[0524] In one embodiment, the behavior of "activating the uplink grant configured by the first signaling" means that when data is transmitted, the data is transmitted using the uplink grant configured by the first signaling.

[0525] In one embodiment, the first node is a user device.

[0526] In one embodiment, the first node is a relay node device.

[0527] In one embodiment, the first receiver 1501 comprises at least one of {antenna 452, receiving device 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, and data source 467} in Embodiment 4.

[0528] In one embodiment, the first transmitter 1502 comprises at least one of {antenna 452, transmitting device 454, transmitting processor 468, multi-antenna transmitting processor 457, controller / processor 459, memory 460, or data source 467} in Embodiment 4.

[0529] Embodiment 16 Embodiment 16, as shown in Figure 16, illustrates a structural block diagram of a processing unit used in a second node according to one embodiment of the present application. In Figure 16, the second node The processing unit 1600 in this configuration includes a second transmitter 1601 and a second receiver 1602.

[0530] In Embodiment 16, the second transmitter 1601 transmits a first signaling, which is an RRC signaling, and is used to configure an uplink grant to a first cell, and a second signaling, which is a MAC layer signaling or a physical layer signaling.

[0531] In Embodiment 16, the recipients of the first and second signalings include a first node, and in response to the end of the first timer, the first node clears the uplink grant to at least the first cell, and in response to receiving the second signaling, the first node hands over to the first cell, the handover behavior to the first cell includes activating the uplink grant configured by the first signaling.

[0532] In one embodiment, the candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2, and the handover behavior to the first cell includes activating the configured uplink grant by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1.

[0533] In one embodiment, the termination of the first timer occurs after the first signaling and before the second signaling.

[0534] In one embodiment, prior to the second signaling, the first node does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is either an RRC signaling or a DCI.

[0535] In one embodiment, when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

[0536] In one embodiment, when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

[0537] In one embodiment, the first node performs a handover to acquire the first serving cell.

[0538] In one embodiment, a second receiver 1602 receives a first signal within a first time-frequency resource set, and an uplink grant configured for the first signaling is used to determine the first time-frequency resource set.

[0539] In one embodiment, the second signaling includes a timing advance command.

[0540] In one sub-embodied embodiment of this design, a timing advance command is used to determine the timing advance (TA) value of the first node during an uplink transmission to the first cell.

[0541] As one embodiment, an up to the first cell, which is configured by the first signaling. A link grant includes multiple configured grant configurations, and the configured grant types of the multiple configured grant configurations include configured grant type 1 and configured grant type 2. The "handover to first cell" behavior includes activating uplink grants in multiple configured grant configurations where the configured grant type is configured grant type 1, and not activating uplink grants in multiple configured grant configurations where the configured grant type is configured grant type 2.

[0542] In one embodiment, when the uplink grant configured by the first signaling is not activated, the uplink grant configured by the first signaling cannot be executed.

[0543] In one embodiment, the first node does not need to receive an RRC-based reconfiguration of the configured grant configuration associated with the first time-frequency resource set before transmitting the first signal within the first time-frequency resource set.

[0544] In one embodiment, the behavior of "activating the uplink grant configured by the first signaling" means that when data is transmitted, the data is transmitted using the uplink grant configured by the first signaling.

[0545] In one embodiment, the second node is a base station device.

[0546] In one embodiment, the second node is a user device.

[0547] In one embodiment, the second node is a relay node device.

[0548] In one embodiment, the second transmitter 1601 includes at least one of {antenna 420, transmitting device 418, transmitting processor 416, multi-antenna transmitting processor 471, controller / processor 475, or memory 476} in Embodiment 4.

[0549] In one embodiment, the second receiver 1602 includes at least one of the {antenna 420, receiving device 418, receiving processor 470, multi-antenna receiving processor 472, controller / processor 475, memory 476} in Embodiment 4.

[0550] Those skilled in the art will understand that all or part of the steps in the methods described above may be carried out by instructing the relevant hardware by a program, in which case the program may be stored in a computer-readable storage medium such as read-only memory, a hard disk, or an optical disc. Optionally, all or part of the steps in the embodiments described above may also be carried out using one or more integrated circuits. Accordingly, each module unit in the embodiments described above may be implemented in hardware form or as a software functional module. This application is not limited to any particular form of hardware-software combination. The user equipment, terminals and UEs of this application include, but are not limited to, drones, communication modules on drones, remotely piloted aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebook computers, in-vehicle communication devices, transport tools, vehicles, RSUs, wireless sensors, internet cards, Internet of Things terminals, RFID (radio frequency identification) terminals, NB-IoT (narrowband Internet of Things) terminals, MTC (machine-type communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, in-vehicle communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base stations or system equipment of the application include, but are not limited to, macro base stations, micro base stations, miniature base stations, home base stations, relay base stations, eNB (evolutionary node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSUs, drones, test devices such as transceiver equipment or signaling test instruments that simulate partial base station functions, and other wireless communication devices.

[0551] Those skilled in the art will understand that the present invention can be practiced in other designated forms without departing from its core or fundamental features. Therefore, the embodiments disclosed herein should be considered explanatory and not restrictive. The scope of the invention is determined not by the foregoing specification but by the appended claims, and all modifications within the meaning and scope of their equivalents are deemed to be included therein.

Claims

1. A first node for wireless communication, A first receiver receives a first signaling, the first signaling being an RRC signaling, which is used to configure an uplink grant for a first cell, and in response to the end of a first timer, clears the uplink grant for at least the first cell, and a second signaling, the second signaling being a MAC layer signaling or a physical layer signaling, The system comprises a first transmitter that, in response to receiving the second signaling, hands over to the first cell, The handover behavior to the first cell includes activating the uplink grant configured by the first signaling to the first node.

2. The candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2, and the behavior of the handover to the first cell includes activating the uplink grant configured by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1, the first node according to claim 1.

3. The first node according to claim 1 or 2, wherein the termination of the first timer occurs after the first signaling and before the second signaling.

4. Prior to the second signaling, the first node does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is an RRC signaling or DCI, the first node according to any one of claims 1 to 3.

5. The first node according to any one of claims 1 to 4, wherein when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

6. The first node according to any one of claims 1 to 4, wherein when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

7. The first node according to any one of claims 1 to 6, comprising the first receiver which hand over to acquire a first serving cell.

8. The first transmitter transmits a first signal within a first time-frequency resource set, The uplink grant configured for the first signaling is used to determine the first time-frequency resource set, as described in any one of claims 1 to 7.

9. A second node for wireless communication, A first signaling, wherein the first signaling is an RRC signaling, which transmits a first signaling used to constitute an uplink grant to a first cell, and a second signaling, wherein the second signaling is a MAC layer signaling or a physical layer signaling. Equipped with a second transmitter that transmits the ring, The recipient of the first signaling and the second signaling includes a first node, wherein in response to the end of a first timer, the first node clears the uplink grant to at least the first cell, and in response to receiving the second signaling, the first node hands over to the first cell, the behavior of the handover to the first cell includes activating the uplink grant configured by the first signaling to a second node.

10. The candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2, and the behavior of the handover to the first cell includes activating the uplink grant configured by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1, the second node according to claim 9.

11. The termination of the first timer occurs after the first signaling and before the second signaling, the second node according to claim 9 or 10.

12. Prior to the second signaling, the first node does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is an RRC signaling or DCI, the second node according to any one of claims 9 to 11.

13. The second node according to any one of claims 9 to 12, wherein when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

14. The second node according to any one of claims 9 to 13, wherein when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

15. The second node according to any one of claims 9 to 14, wherein the first node hands over to acquire the first serving cell.

16. A second node according to any one of claims 9 to 15, comprising a second receiver for receiving a first signal within a first time-frequency resource set, wherein the uplink grant configured for the first signaling is used to determine the first time-frequency resource set.

17. A method at a first node for wireless communication, Receiving a first signaling, wherein the first signaling is an RRC signaling, and the first signaling is used to configure an uplink grant for a first cell, and in response to the end of a first timer, clearing the uplink grant for at least the first cell, and receiving a second signaling, wherein the second signaling is a MAC layer signaling or a physical layer signaling, The process includes, in response to receiving the second signaling, handing over to the first cell, The handover behavior to the first cell is a method comprising activating the uplink grant configured by the first signaling.

18. The method according to claim 17, wherein the candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2, and the behavior of the handover to the first cell includes activating the configured uplink grant by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1.

19. The method according to claim 17 or 18, wherein the termination of the first timer occurs after the first signaling and before the second signaling.

20. The method according to any one of claims 17 to 19, wherein, prior to the second signaling, the first node does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is an RRC signaling or DCI.

21. The method according to any one of claims 17 to 20, wherein when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

22. The method according to any one of claims 17 to 21, wherein when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

23. The method according to any one of claims 17 to 22, comprising handing over to obtain a first serving cell.

24. The method according to any one of claims 17 to 23, comprising transmitting a first signal within a first time-frequency resource set, wherein the uplink grant configured for the first signaling is used to determine the first time-frequency resource set.

25. A method at a second node for wireless communication, A first signaling, wherein the first signaling is an RRC signaling, and the first signaling transmits a first signaling used to constitute an uplink grant to a first cell. The process includes transmitting a second signaling, wherein the second signaling is a MAC layer signaling or a physical layer signaling. A method comprising: a first node to which the first signaling and the second signaling are received, wherein in response to the end of a first timer, the first node clears the uplink grant to at least the first cell, and in response to receiving the second signaling, the first node hands over to the first cell, the handover behavior to the first cell includes activating the uplink grant configured by the first signaling.

26. The method according to claim 25, wherein the candidate configured grant types indicated by the first signaling include configured grant type 1 and configured grant type 2, and the behavior of the handover to the first cell includes activating the configured uplink grant by the first signaling only when the configured grant type indicated by the first signaling is configured grant type 1.

27. The method according to claim 25 or 26, wherein the termination of the first timer occurs after the first signaling and before the second signaling.

28. The method according to any one of claims 25 to 27, wherein, prior to the second signaling, the first node does not receive an air interface signaling to activate the configured grant configuration indicated by the first signaling, and the air interface signaling is an RRC signaling or DCI.

29. The method according to any one of claims 25 to 28, wherein when the termination behavior of the first timer occurs, the first cell waits to be handed over by the first node.

30. The method according to any one of claims 25 to 29, wherein when the termination behavior of the first timer occurs, the first cell is the serving cell of the first node.

31. The method according to any one of claims 25 to 30, comprising the first node handing over to acquire a first serving cell.

32. The method according to any one of claims 25 to 31, comprising receiving a first signal within a first time-frequency resource set, wherein the uplink grant configured for the first signaling is used to determine the first time-frequency resource set.

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