Methods and apparatus used in nodes for wireless communications

Abstract

This application discloses a method and apparatus for use in a node for wireless communication. The method includes the node receiving a first information block used to determine X1 candidate configurations, the node receiving a first PDCCH carrying a first region, and the node transmitting a first signal carrying a random access preamble sequence, where any one of the X1 candidate configurations is used to determine at least one cell, and if the value of the first region carried by the first PDCCH is equal to a value other than one of the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs; and if the value of the first region carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first region carried by the first PDCCH is used to determine a target configuration from among the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration. This application guarantees synchronous performance.

Description

[Technical Field]

[0001] This application relates to a transmission method and apparatus in a wireless communication system, and more specifically, to a method and apparatus for uplink synchronization in wireless communication. [Background technology]

[0002] The application scenarios for future wireless communication systems are becoming increasingly diverse, and different application scenarios impose different performance requirements on the systems. To meet the different performance requirements of various application scenarios, it was decided at the 72nd meeting of the Third Generation Partner Project (3GPP) Radio Access Network (RAN) to conduct research on New Radio (NR) technology (also known as 5G). At the 75th meeting of the 3GPP RAN, the NR Work Item (WI) was approved, and standardization work on NR commenced.

[0003] In new wireless technologies, uplink synchronization transmission is one of the most fundamental requirements. To adapt to diverse application scenarios and meet different requirements, 3GPP is continuously evolving uplink synchronization technology. [Overview of the Initiative]

[0004] When a User Equipment (UE) moves from the coverage range of one cell to the coverage range of another, it is necessary to change the UE's serving cell, i.e., a handover from the source cell to the target cell. In related technologies, serving cell changes are typically triggered by L3 (Layer 3) measurements and implemented by reconfiguration using synchronization triggered through RRC (Radio Resource Control) signaling. Serving cell changes implemented at L3 are characterized by long latency, high signaling overhead, and long downtime. To overcome these drawbacks, 3GPP (Third Generation Partner Project) RAN (Radio Access Network) introduced technologies based on L3 implementation forms such as DC (Dual Connectivity), CPC (Conditional PSCell (Primary SCG (Secondary Cell Group) Cell) Change), CPA (Conditional PSCell Addition), and CHO (Conditional Handover) in Rel (Release)-17. At the 3GPP RAN #94e General Assembly, it was decided to initiate a Standardization Work Item (WI) for L1 / L2-based mobility enhancement technologies. The design objective of L1 / L2-based mobility enhancement technologies is to implement high-speed switching of UE serving cells. Considering the uplink synchronization requirements in mobility enhancement of NR systems, this application discloses a solution. It should be noted that in the specification of this application, mobility enhancement is treated only as a typical application scenario or example, and the design in this application is applicable to other scenarios facing similar problems where similar technical effects can be achieved (including, but not limited to, multi-antenna systems, multi-TRP (transmit / receive point) systems, capacity enhancement systems, near-field communication systems, unlicensed spectrum communications, IoT (Internet of Things), URLLC (ultra-high reliability low-latency communication) networks, and other scenarios requiring uplink synchronization across multiple cells). In addition, adopting a unified solution across different scenarios (including, but not limited to, multi-carrier scenarios) can also help reduce hardware complexity and cost.Unless otherwise specified, embodiments and features in the first node device of this application may be applied to the second node device, and vice versa. In particular, the descriptions of terms, nouns, functions, and variables in this application (unless otherwise specified) may refer to the definitions in the TS36, TS38, and TS37 series of 3GPP specification protocols.

[0005] This application discloses a method used for a first node for wireless communication, the method being: Receiving a first information block used to determine X1 candidate configurations, where X1 is a positive integer, Receiving a first PDCCH that carries the first field, The transmission of a first signal, wherein a first PDCCH is used to trigger the transmission of the first signal, and the first signal is characterized by including the transmission of a random access preamble sequence. Any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0006] In one embodiment, by determining that the value of the first field is equal to a value other than X1 candidate values, it is determined that the first signal is associated with the cell to which the first PDCCH belongs, which supports the transmission of dynamic switching of PRACH between the source cell and the target cell (or candidate cell), guarantees uplink synchronization performance, and simplifies the standard design.

[0007] According to one aspect of the present application, the above method is characterized in that the first numerical value is equal to the number of bits included in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling value of the logarithm of the reference value with base 2, and the reference value is equal to X1 + 1.

[0008] As an embodiment, when the reference value is equal to X1 + 1, an instruction for dynamic switching between the source cell and the target cell (or candidate cell) via the first field is supported, thereby simplifying the design while ensuring compatibility.

[0009] According to one aspect of the present application, the above method is characterized in that X1 candidate configurations are respectively used to constitute X1 identifiers, the X1 candidate configurations correspond one-to-one with X1 candidate values in the order of the X1 identifiers, and the target configuration is the candidate configuration corresponding to the value of the first field carried by the first PDCCH among the X1 candidate configurations.

[0010] According to one aspect of the present application, the method is characterized in that any one of the X1 candidate values belongs to the first candidate value set, the value of the first field carried by the first PDCCH belongs to the first candidate value set, the first candidate value set includes a plurality of candidate values, the fact that the first signal is associated with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value, and the target value is one of the candidate values within the first candidate value set.

[0011] According to one aspect of the present application, the above method is characterized by including transmitting a second information block. The second information block is used to indicate at least one capability parameter of the sender of the second information block, the second information block is used to determine that the first PDCCH carries the first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to the first threshold, and the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or at least one of the second information blocks is used to determine the first threshold. At least one of them is used to determine the first threshold.

[0012] According to one aspect of the present application, the above method is characterized by including monitoring a second PDCCH within a target time window, the second PDCCH is used to respond to the first signal, and the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0013] According to one aspect of the present application, the above method is characterized in that the first information block is used to determine a power ramping step, the first PDCCH is used to determine a first count value, and the power ramping step and the first count value are used together to determine the transmission power value of the first signal.

[0014] The present application is a method used in a second node for wireless communication, transmitting a first information block used to determine X1 candidate configurations, where X1 is a positive integer, transmitting a first PDCCH that carries a first field, receiving a first signal, where the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence, characterized by including receiving. Any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0015] According to one aspect of this application, the above method is characterized in that the first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling value of the base 2 logarithm of the reference value, and the reference value is equal to X1+1.

[0016] According to one aspect of this application, the above method is characterized in that X1 candidate configurations are each used to constitute X1 identifiers, the X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of the X1 identifiers, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of a first field carried by a first PDCCH.

[0017] According to one aspect of the present application, the method is characterized in that one of X1 candidate values ​​belongs to a first set of candidate values, the value of a first field carried by a first PDCCH belongs to the first set of candidate values, the first set of candidate values ​​includes a plurality of candidate values, and the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value, the target value being one of the candidate values ​​in the first set of candidate values.

[0018] According to one aspect of this application, the above method is Characterized by including the reception of a second information block, The second information block contains at least one capability parameter of the sender of the second information block. The second information block is used to indicate that the first PDCCH carries the first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, and at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold.

[0019] According to one aspect of this application, the above method is Characterized by including the transmission of a second PDCCH within the target time window, A second PDCCH is used to respond to the first signal, and the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0020] According to one aspect of this application, the above method is characterized in that a first information block is used to determine a power ramping step, a first PDCCH is used to determine a first count value, and the power ramping step and the first count value are used together to determine a transmission power value of a first signal.

[0021] This application relates to a first node device for wireless communication, A first receiver that receives a first information block used to determine X1 candidate configurations, where X1 is a positive integer. The first receiver receives the first PDCCH that carries the first field, A first transmitter that transmits a first signal, wherein a first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence, is characterized by comprising: Any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0022] This application relates to a second node device for wireless communication, A second transmitter that transmits a first information block used to determine X1 candidate configurations, where X1 is a positive integer. The second transmitter transmits the first PDCCH that carries the first field, A second receiver that receives a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence, characterized by comprising: Any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine the target configuration from the X1 candidate configurations, and the first signal is determined by the target configuration It is also associated with another cell.

[0023] 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]

[0024] [Figure 1] A flowchart of a first information block, a first PDCCH, and a first signal 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 a wireless protocol architecture for the user plane and control plane according to one embodiment of this application is shown. [Figure 4] A schematic diagram of a first node device and a second node device according to one embodiment of this application is shown. [Figure 5] A flowchart of wireless signal transmission according to one embodiment of this application is shown. [Figure 6] A schematic diagram of the first numerical values ​​according to one embodiment of this application is shown. [Figure 7] This diagram shows a schematic representation of the relationship between X1 candidate configurations and X1 candidate values ​​according to one embodiment of this application. [Figure 8] A schematic diagram of the first set of candidate values ​​according to one embodiment of this application is shown. [Figure 9] A schematic diagram of the relationship between a first PDCCH and a first signal according to one embodiment of this application is shown. [Figure 10] A schematic diagram of a target time window according to one embodiment of this application is shown. [Figure 11] A schematic diagram of a power ramping step according to one embodiment of this application is shown. [Figure 12] This shows a structural block diagram of a processing unit in a first node device according to one embodiment of this application. [Figure 13] This shows a structural block diagram of a processing unit in a second node device according to one embodiment of this application. [Modes for carrying out the invention]

[0025] The technical proposal of this application will be described in more detail below, in conjunction with the drawings. The embodiments and features described herein can be combined in any way, as long as they do not contradict each other.

[0026] Embodiment 1 Embodiment 1 illustrates a flowchart 100 of a first information block, a first PDCCH, and a first signal according to one embodiment of the present application, as shown in Figure 1. In Figure 1, each block represents one step. It should be particularly emphasized that the order of the blocks in the figure does not limit the temporal relationship of the steps represented.

[0027] In Embodiment 1, the first node device in this application receives a first information block in step 101, the first information block is used to determine X1 candidate configurations, where X1 is a positive integer; the first node device in this application receives a first PDCCH in step 102, the first PDCCH carries a first field; the first node device in this application transmits a first signal in step 103, the first PDCCH is used to trigger the transmission of the first signal, the first signal is a random access preamble sequencer The signal is carried, and one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is a target from the X1 candidate configurations. Used to determine the target configuration, the first signal is associated with at least one cell determined by the target configuration.

[0028] In one embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0029] In one embodiment, the first information block includes all or part of a single upper-layer signaling or physical-layer signaling.

[0030] In one embodiment, the first information block includes all or part of one RRC (Radio Resource Control) layer signaling, or the first information block includes all or part of one MAC (Media Access Control) layer signaling.

[0031] In one embodiment, the first information block includes all or part of a single system information block (SIB).

[0032] In one embodiment, the first information block is UE-specific, or the first information block is cell-specific.

[0033] In one embodiment, the first information block is composed of cells.

[0034] In one embodiment, the first information block is for the cell to which the first PDCCH belongs.

[0035] In one embodiment, the first information block is for cells other than the cell to which the first PDCCH belongs.

[0036] In one embodiment, the first information block is configured for each cell group or for each cell list.

[0037] In one embodiment, the first information block may be configured per carrier, or per BWP (bandwidth portion), or per band or per frequency range (FR).

[0038] In one embodiment, the first information block includes all or part of the fields in the DCI (Downlink Control Information) format.

[0039] In one embodiment, the first information block includes IE "RRCReconfiguration", or the first information block includes all or part of IE "RRCReconfiguration-v1700-IEs", or the first information block includes all or part of IE "RRCReconfiguration-v1800-IEs", or the first information block includes all or part of IE "LTM_CellGroupReconfig-r18", or the first information block includes IE "ltmCellReconfig-r18" The first information block includes all or part of IE "ltmCellConfig-r18", or the first information block includes all or part of IE "LTM_Config-r18", or the first information block includes all or part of IE "ServingCellConfig", or the first information block includes all or part of IE "CellGroupConfig", or the first information block includes all or part of IE "LTMConfig", or the first information block includes IE "L1L2 Includes all or part of "TriggerMobilityConfig".

[0040] In one embodiment, the first information block is an IE that includes a random access channel configuration.

[0041] In one embodiment, the first information block includes IE other than IE "RACH-ConfigDedicated" or IE "RACH-ConfigCommon".

[0042] In one embodiment, the first information block includes the "powerRampingStep" field, or the first information block includes all or part of IE "RACH-ConfigGeneric", or the first information block includes all or part of IE "RACH-ConfigDedicated", or the first information block includes all or part of IE "RACH-ConfigCommon", or the first information block includes all or part of IE "SpCellConfig", or the first information block includes all or part of IE "BWP-UplinkCommon", or the first information block includes all or part of IE "BWP-Uplink".

[0043] In one embodiment, the first information block includes all or part of the random access configuration information.

[0044] In one embodiment, the first information block includes all or part of the LTM configuration information.

[0045] In one embodiment, the technical feature "a first information block is used to determine X1 candidate configurations" includes the meaning that the first information block is used by the first node device in this application to determine X1 candidate configurations.

[0046] In one embodiment, the technical feature "a first information block is used to determine X1 candidate configurations" includes the meaning that all or part of the first information block is used to explicitly or implicitly indicate X1 candidate configurations.

[0047] In one embodiment, the technical feature "the first information block is used to determine X1 candidate configurations" includes the meaning that the first information block is used to determine one of the X1 candidate configurations.

[0048] In one embodiment, the technical feature "the first information block is used to determine X1 candidate configurations" includes the meaning that the first information block is used to determine all or part of the X1 candidate configurations.

[0049] In one embodiment, the technical feature "the first information block is used to determine X1 candidate configurations" means that the first information block includes X1 sub-information blocks, and each of the X1 sub-information blocks is used to determine X1 candidate configurations.

[0050] In one embodiment, the technical feature "a first information block is used to determine X1 candidate configurations" includes the meaning that all or part of the first information block is used to explicitly or implicitly indicate a list containing X1 candidate configurations.

[0051] In one embodiment, the technical feature is that "the first information block is used to determine X1 candidate configurations," where all or part of the first information block is used to determine X1 candidate configurations. This implies that at least one of our items will be used to add to one configuration list.

[0052] In one embodiment, the technical feature "a first information block is used to determine X1 candidate configurations" includes the meaning that all or part of the first information block is used to free up at least one of the X1 candidate configurations from a configuration list.

[0053] In one embodiment, the technical feature "a first information block is used to determine X1 candidate configurations" includes the meaning that all or part of the first information block is used to modify a configuration list that includes at least one of the X1 candidate configurations.

[0054] In one embodiment, the first information block is used to determine only X1 candidate configurations.

[0055] In one embodiment, the first information block is also used to determine configurations other than the X1 candidate configurations.

[0056] In one embodiment, one of the X1 candidate configurations is an RRC reconstruction.

[0057] In one embodiment, at least one of the X1 candidate configurations is an RRC reconstruction.

[0058] In one embodiment, one of the X1 candidate configurations is an LTM configuration.

[0059] In one embodiment, one of the X1 candidate configurations is an LTM candidate cell configuration.

[0060] In one embodiment, one of the X1 candidate configurations is an LTM target cell configuration.

[0061] In one embodiment, any one of the X1 candidate configurations is an RRC configuration for one LTE candidate cell.

[0062] In one embodiment, one of the X1 candidate configurations is an LTM cell configuration or reconfiguration.

[0063] In one embodiment, one of the X1 candidate configurations is an LTM cell group configuration or reconfiguration.

[0064] In one embodiment, at least one of the X1 candidate configurations is an LTM cell group configuration or reconfiguration.

[0065] In one embodiment, one of the X1 candidate configurations is a cell group configuration.

[0066] In one embodiment, one of the X1 candidate configurations is a single IE.

[0067] In one embodiment, one of the X1 candidate configurations is at least one F Includes world.

[0068] In one embodiment, any one of the X1 candidate configurations includes at least one IE.

[0069] In one embodiment, any two of the X1 candidate configurations include at least one identical field.

[0070] In one embodiment, two of the X1 candidate configurations include at least one different field.

[0071] In one embodiment, X1 candidate configurations include one reference candidate configuration, and at least one of the X1 candidate configurations other than the reference candidate configuration includes a difference configuration or delta configuration with respect to the reference candidate configuration.

[0072] In one embodiment, X1 candidate configurations include one reference candidate configuration, and the value of one field contained in at least one of the candidate configurations other than the reference candidate configuration is used to indicate the difference between that value and the value of one field contained in the reference candidate configuration.

[0073] In one embodiment, at least one of the X1 candidate configurations includes at least a "RadioBearerConfig" IE or field.

[0074] In one embodiment, any one of the X1 candidate configurations includes at least a cell identifier or a cell group identifier (ID).

[0075] In one embodiment, any one of the X1 candidate configurations includes at least a physical cell identifier (PCID).

[0076] In one embodiment, at least one of the X1 candidate configurations includes at least a "MeasConfig" IE or field.

[0077] In one embodiment, at least one of the X1 candidate configurations includes at least a "CellGroupConfig" IE or field.

[0078] In one embodiment, X1 is greater than 1.

[0079] In one embodiment, X1 is equal to 1.

[0080] In one embodiment, the upper limit of X1 is equal to 4.

[0081] In one embodiment, the upper limit of X1 is equal to 8.

[0082] In one embodiment, the upper limit of X1 is equal to 16.

[0083] In one embodiment, the first PDCCH is the baseband signal of the PDCCH (Physical Downlink Control Channel).

[0084] In one embodiment, the first PDCCH is the radio frequency signal of the PDCCH.

[0085] In one embodiment, the first PDCCH is in the PDCCH sequence.

[0086] In one embodiment, the first PDCCH carries DCI (Downlink Control Information) used for PDCCH sequencing.

[0087] In one embodiment, the first PDCCH carries all or part of the fields in DCI format 1_0.

[0088] In one embodiment, DCI format 1_0 is used to generate a first PDCCH.

[0089] In one embodiment, all values ​​of the frequency domain resource allocation fields included in the DCI carried by the first PDCCH are equal to "1".

[0090] In one embodiment, all bits of the frequency domain resource allocation field included in the DCI carried by the first PDCCH are set to "1".

[0091] In one embodiment, the CRC of the DCI in DCI format carried by the first PDCCH is scrambled by C-RNTI (Cell Radio Network Temporary Identifier).

[0092] In one embodiment, the PDCCH candidate occupied by the first PDCCH belongs to the CSS (Common Search Space) set.

[0093] In one embodiment, the PDCCH candidates occupied by the first PDCCH belong to the UE-specific search space (USS) set.

[0094] In one embodiment, the technical feature "first PDCCH that carries a first field" means that the format adopted by the DCI carried by the first PDCCH includes a first field.

[0095] In one embodiment, the technical feature "first PDCCH that carries the first field" means that the DCI containing the first field is transmitted over the first PDCCH.

[0096] In one embodiment, the technical feature "first PDCCH that carries the first field" means that the DCI containing the first field is mapped to the first PDCCH.

[0097] In one embodiment, the technical feature “first PDCCH that carries a first field” means that a DCI containing the first field is used to generate the first PDCCH.

[0098] In one embodiment, the technical feature "first PDCCH that carries the first field" means that the information bits of the DCI carried by the first PDCCH include bits occupied by the first field.

[0099] In one embodiment, the first field is an LTM candidate cell (or target cell) configuration indicator (or identifier) ​​(LTM candidate / target cell configuration indicator).

[0100] In one embodiment, the first field is an LTM candidate cell (or target cell) indicator (or identifier) ​​(LTM candidate / target cell indicator).

[0101] In one embodiment, the first field is a candidate cell (or target cell) configuration indicator (or identifier) ​​(candidate / target cell configuration indicator).

[0102] In one embodiment, the first field is a candidate cell (or target cell) indicator (or identifier) ​​(candidate / target cell indicator).

[0103] In one embodiment, the first field is a reinterpretation of a legacy field.

[0104] In one embodiment, the first field is a reinterpretation of the reserved bits.

[0105] In one embodiment, the first field occupies at least one reserved bit in the DCI format that includes the first field.

[0106] In one embodiment, for PDCCH sequences other than LTM, any bits occupied by the first field are reserved bits.

[0107] In one embodiment, a first information block is used to determine that at least one reserved bit in the DCI carried by a first PDCCH is to be used as a first field.

[0108] In one embodiment, information blocks other than the first information block are used to determine that at least one reserved bit in the DCI carried by the first PDCCH is to be used as the first field.

[0109] In one embodiment, at least one capability parameter reported by a first node device is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is to be used as the first field.

[0110] In one embodiment, at least one capability parameter and a first information block reported by a first node device are used together to determine that at least one reserved bit in the DCI carried by a first PDCCH is to be used as a first field.

[0111] In one embodiment, the first signal is PRACH (Physical Random Access Channel).

[0112] In one embodiment, the first signal is a radio frequency signal or baseband signal of PRACH.

[0113] In one embodiment, the first signal is used for a random access procedure.

[0114] In one embodiment, the first signal is used for the LTM (L1 / L2 Trigger Mobility) procedure.

[0115] In one embodiment, the first signal is used to trigger the random access procedure of the LTM.

[0116] In one embodiment, the technical feature “the first PDCCH is used to trigger the transmission of the first signal” includes the meaning that the first PDCCH is used to explicitly or implicitly indicate the resources occupied by the first signal.

[0117] In one embodiment, the technical feature “a first PDCCH is used to trigger the transmission of a first signal” includes the meaning that the first PDCCH is used to explicitly or implicitly indicate a random access preamble sequence to be carried to the first signal.

[0118] In one embodiment, the technical feature “a first PDCCH is used to trigger the transmission of a first signal” includes the meaning that the first PDCCH is used to explicitly or implicitly indicate the index of the SS / PBCH associated with the first signal.

[0119] In one embodiment, the technical feature “the first PDCCH is used to trigger the transmission of the first signal” means that the first PDCCH is used by the sender of the first PDCCH in this application to trigger the transmission of the first signal.

[0120] In one embodiment, the technical feature “a first PDCCH is used to trigger the transmission of a first signal” includes the meaning that the first PDCCH is used to explicitly or implicitly configure or schedule at least one parameter of the first signal.

[0121] In one embodiment, the technical feature "a first PDCCH is used to trigger the transmission of a first signal" includes the meaning that the transmission of the first signal is a response to the first PDCCH.

[0122] In one embodiment, the technical feature “a first PDCCH is used to trigger the transmission of a first signal” includes the meaning that the first PDCCH is used to explicitly or implicitly instruct a first node device to transmit a first signal.

[0123] In one embodiment, the technical feature "the first signal carries a random access preamble sequence" includes the meaning that the first signal is used for transmitting a random access preamble sequence.

[0124] In one embodiment, the technical feature that "the first signal carries a random access preamble sequence" includes the meaning that the random access preamble sequence is transmitted over the first signal.

[0125] In one embodiment, the technical feature that "the first signal carries a random access preamble sequence" includes the meaning that the random access preamble sequence is used to generate the first signal.

[0126] In one embodiment, the technical feature that "the first signal carries a random access preamble sequence" includes the meaning that the random access preamble sequence is mapped to the physical resources assigned to the first signal.

[0127] In one embodiment, a ZC (Zadoff-Chu) sequence is used to generate a random access preamble sequence carried by a first signal.

[0128] In one embodiment, a pseudo-random sequence is used to generate a random access preamble sequence carried by a first signal.

[0129] In one embodiment, the random access preamble sequence carried by the first signal employs preamble sequence format 0.

[0130] In one embodiment, the random access preamble sequence carried by the first signal employs preamble sequence format 1.

[0131] In one embodiment, the random access preamble sequence carried by the first signal employs preamble sequence format 2.

[0132] In one embodiment, the random access preamble sequence carried by the first signal employs preamble sequence format 3.

[0133] In one embodiment, the random access preamble sequence carried by the first signal employs one of the preamble sequence formats A1, A2, A3, B1, B2, B3, B4, C0, and C2.

[0134] In one embodiment, the preamble sequence format employed by the random access preamble sequence carried by the first signal is configured as a signaling sequence.

[0135] In one embodiment, the sequence length of the random access preamble sequence carried by the first signal is equal to 139, or 571, or 839, or 1151.

[0136] In one embodiment, the technical feature "any one of X1 candidate configurations is used to determine at least one cell" means that any one of X1 candidate configurations is used by the first node device in this application to determine at least one cell.

[0137] In one embodiment, the technical feature "any candidate configuration among X1 candidate configurations is used to determine at least one cell" includes the meaning that all or part of any one of X1 candidate configurations is used to explicitly or implicitly indicate at least one cell.

[0138] In one embodiment, the technical feature "any candidate configuration among X1 candidate configurations is used to determine at least one cell" means that at least one field (or IE) contained in any one of X1 candidate configurations is used to explicitly or implicitly indicate at least one cell.

[0139] In one embodiment, the technical feature "any one of the X1 candidate configurations is used to determine at least one cell" means that at least one field (or IE) contained in any one of the X1 candidate configurations is used to explicitly or implicitly indicate the index (or identifier) ​​of at least one cell.

[0140] One embodiment is described as "one of the X1 candidate configurations is at least one set The technical feature "used to determine the configuration" means that at least one field (or IE) contained in any one of the X1 candidate configurations is used to explicitly or implicitly indicate a cell group or a cell list.

[0141] In one embodiment, one of the X1 candidate configurations is used to determine only one cell.

[0142] In one embodiment, one of X1 candidate configurations is used to determine multiple cells.

[0143] In one embodiment, one of the X1 candidate configurations is used to determine a single cell, and another of the X1 candidate configurations is used to determine multiple cells.

[0144] In one embodiment, any cell determined by any one of the X1 candidate configurations is a candidate cell or a target cell.

[0145] In one embodiment, any cell determined by any one of the X1 candidate configurations is a candidate cell or target cell of the LTM.

[0146] In one embodiment, any cell determined by any one of X1 candidate configurations is a non-serving cell of the first node device.

[0147] In one embodiment, one cell determined by one of X1 candidate configurations is the serving cell of the first node device.

[0148] In one embodiment, one cell determined by one of the X1 candidate configurations is a serving cell of the first node device, and one cell determined by one of the X1 candidate configurations is a non-serving cell of the first node device.

[0149] In one embodiment, one cell determined by one of the X1 candidate configurations is the cell to which the first PDCCH belongs.

[0150] In one embodiment, any cell determined by any one of the X1 candidate configurations is a cell other than the cell to which the first PDCCH belongs.

[0151] In one embodiment, any cell determined by any one of the X1 candidate configurations is a physical cell.

[0152] In one embodiment, X1 candidate values ​​are X1 possible values ​​of the first field.

[0153] In one embodiment, one of the X1 candidate values ​​is one possible state of the first field.

[0154] In one embodiment, one of the X1 candidate values ​​is a candidate value or candidate state of the first field.

[0155] In one embodiment, one of the X1 candidate values ​​is a non-negative integer.

[0156] In one embodiment, one of the X1 candidate values ​​is the state of a single bitmap.

[0157] In one embodiment, one of the X1 candidate values ​​is a single value in the form of a string.

[0158] In one embodiment, the correspondence between X1 candidate configurations and X1 candidate values ​​is signaled, or the correspondence between X1 candidate configurations and X1 candidate values ​​is predefined, or the correspondence between X1 candidate configurations and X1 candidate values ​​is fixed.

[0159] In one embodiment, the correspondence between X1 candidate configurations and X1 candidate values ​​is related to the number of bits contained in the first field.

[0160] In one embodiment, the technical feature "X1 candidate configurations each correspond to X1 candidate values" includes the meaning that each of the X1 candidate configurations is associated with X1 candidate values.

[0161] In one embodiment, the technical feature "X1 candidate configurations each correspond to X1 candidate values" includes the meaning that X1 candidate values ​​are used to represent X1 candidate configurations.

[0162] In one embodiment, the technical feature "X1 candidate configurations each correspond to X1 candidate values" includes the meaning that X1 candidate values ​​are used to indicate each of X1 candidate configurations.

[0163] In one embodiment, the technical feature "X1 candidate configurations each correspond to X1 candidate values" includes the meaning that each of the X1 candidate values ​​is used to index or identify the X1 candidate configurations.

[0164] In one embodiment, the technical feature "X1 candidate configurations each correspond to X1 candidate values" includes the meaning that each of the X1 candidate configurations corresponds to X1 candidate values ​​according to the table.

[0165] In one embodiment, the technical feature "X1 candidate configurations each correspond to X1 candidate values" means that X1 candidate configurations and X1 candidate values ​​each belong to two columns in the same table containing at least X1 rows.

[0166] In one embodiment, the two expressions "X1 candidate configurations each correspond to X1 candidate values" and "X1 candidate values ​​each correspond to X1 candidate configurations" are equivalent or interchangeable.

[0167] In one embodiment, the technical feature "the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values" includes the meaning that the value of the first field carried by the first PDCCH is equal to any value other than X1 candidate values.

[0168] In one embodiment, the technical feature "the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values" includes the meaning that the value of the first field carried by the first PDCCH is equal to one predefined value other than X1 candidate values.

[0169] In one embodiment, the technical feature "the value of the first field conveyed by the first PDCCH is equal to a value other than X1 candidate values" includes the meaning that the value of the first field conveyed by the first PDCCH is equal to one fixed value other than X1 candidate values.

[0170] In one embodiment, the technical feature "the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values" includes the meaning that the value of the first field carried by the first PDCCH is equal to one configuration value other than X1 candidate values.

[0171] In one embodiment, the technical feature "the value of the first field conveyed by the first PDCCH is equal to a value other than X1 candidate values" includes the meaning that the value of the first field conveyed by the first PDCCH is equal to the target value in this application.

[0172] In one embodiment, the technical feature "the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values" includes the meaning that the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values ​​out of all possible values ​​of the first field carried by the first PDCCH.

[0173] In one embodiment, the cell to which the first PDCCH belongs is the cell that transmits the first PDCCH.

[0174] In one embodiment, the cell to which the first PDCCH belongs is the cell to which the resources occupied by the first PDCCH belong.

[0175] In one embodiment, the cell to which the first PDCCH belongs is the cell to which the first PDCCH is transmitted.

[0176] In one embodiment, the cell to which the first PDCCH belongs is a cell used to allocate resources for the first PDCCH.

[0177] In one embodiment, the cell to which the first PDCCH belongs is identified by a cell identifier used to determine the initial value of the scrambling code of the first PDCCH.

[0178] In one embodiment, the cell to which the first PDCCH belongs is the cell in which the transmission of the first PDCCH is synchronized.

[0179] In one embodiment, the cell to which the first PDCCH belongs is a cell to which an RRC connection was established during the transmission of the first PDCCH.

[0180] In one embodiment, the "cell to which the first PDCCH belongs" and the "special cell where the first node device is located when it receives the first PDCCH" are equivalent or interchangeable.

[0181] In one embodiment, the "cell to which the first PDCCH belongs" and the "cell having a CU (centralized unit) located when the first node device receives the first PDCCH" are equivalent or interchangeable.

[0182] In one embodiment, the "cell to which the first PDCCH belongs" and the "cell having an RRC layer located when the first node device receives the first PDCCH" are equivalent or interchangeable.

[0183] In one embodiment, the "cell to which the first PDCCH belongs" and the "cell having a control plane located when the first node device receives the first PDCCH" are equivalent or interchangeable.

[0184] In one embodiment, the "cell to which the first PDCCH belongs" and the "cell having an RRC connection when the first node device receives the first PDCCH" are equivalent or interchangeable.

[0185] In one embodiment, the "cell to which the first PDCCH belongs" and the "cell present when the first node device receives the first PDCCH" are equivalent or interchangeable.

[0186] In one embodiment, the "cell to which the first PDCCH belongs" and the "source cell of the LTM when the first PDCCH is received" are equivalent or interchangeable.

[0187] In one embodiment, the "cell to which the first PDCCH belongs" and the "cell in which the first node device is located before handover" are equivalent or interchangeable.

[0188] In one embodiment, the technical features "a first signal is associated with the cell to which the first PDCCH belongs" and "the cell to which the first PDCCH belongs is associated with the first signal" are equivalent or interchangeable.

[0189] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" means that the cell that constitutes the first signal (or to which the resources of the first signal are allocated) is the same cell to which the first PDCCH belongs.

[0190] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the cell that constitutes the first signal (or to which the resources of the first signal are allocated) and the cell to which the first PDCCH belongs belong to the same TAG (Timing Advance Group).

[0191] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" means that the cell that constitutes the first signal (or to which the resources of the first signal are allocated) is a scheduled cell, and the cell to which the first PDCCH belongs is a scheduling cell.

[0192] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the first signal is used for the cell to which the first PDCCH belongs.

[0193] In one embodiment, the technical feature "a first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the first signal is used to obtain the timing advance (TA) of the cell to which the first PDCCH belongs.

[0194] In one embodiment, "the first signal is associated with the cell to which the first PDCCH belongs." This technical feature means that the first signal is associated with an index value associated with the cell to which the first PDCCH belongs.

[0195] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" means that the first signal is configured for the cell to which the first PDCCH belongs, or for a group of cells including the cell to which the first PDCCH belongs.

[0196] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the target receiver of the first signal is a network device in the cell to which the first PDCCH belongs.

[0197] In one embodiment, the technical feature “the first signal is associated with the cell to which the first PDCCH belongs” includes the meaning that the time-frequency resources and / or sequences occupied by the first signal are configured for the cell to which the first PDCCH belongs.

[0198] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the time-frequency resources and / or sequences occupied by the first signal are configured together with the index values ​​associated with the cell to which the first PDCCH belongs.

[0199] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the configuration information of the first signal is specific to the BWP contained in the cell to which the first PDCCH belongs.

[0200] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" means that the configuration of the BWP included in the cell to which the first PDCCH belongs includes the configuration of the first signal.

[0201] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the frequency domain resources occupied by the first signal belong to the BWP (bandwidth portion) contained within the cell to which the first PDCCH belongs.

[0202] In one embodiment, the technical feature “the first signal is associated with the cell to which the first PDCCH belongs” includes the meaning that the time-frequency resources and / or sequences occupied by the first signal are configured in the IE or fields of the cell to which the first PDCCH belongs.

[0203] In one embodiment, the technical feature “the first signal is associated with the cell to which the first PDCCH belongs” includes the meaning that the IE or field of the cell to which the first PDCCH belongs is used to determine the time-frequency resources and / or sequence occupied by the first signal.

[0204] In one embodiment, the technical feature “the first signal is associated with the cell to which the first PDCCH belongs” includes the meaning that the fields of the IE or BWP included for the cell to which the first PDCCH belongs are used to determine the time-frequency resources and / or sequences occupied by the first signal.

[0205] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" is a random access preamble indicated by the first PDCCH. This implies that the sequence index is for the cell to which the first PDCCH belongs.

[0206] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the uplink carrier / auxiliary uplink carrier indicator shown by the first PDCCH is for the cell to which the first PDCCH belongs.

[0207] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the SS / PBCH (Synchronization Signal / Physical Broadcast Channel) index indicated by the first PDCCH is for the cell to which the first PDCCH belongs.

[0208] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the PRACH mask index indicated by the first PDCCH is for the cell to which the first PDCCH belongs.

[0209] In one embodiment, the technical feature "a first signal is associated with the cell to which the first PDCCH belongs" means that the fields of the IE or BWP included for the cell to which the first PDCCH belongs are used to determine the configuration index of the first signal.

[0210] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" means that the configuration index of the first signal is configured in the IE "SpCellConfig" of the cell to which the first PDCCH belongs.

[0211] In one embodiment, the technical feature "a first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the configuration index of the first signal is configured within the IE "SCellConfig" for the cell to which the first PDCCH belongs.

[0212] In one embodiment, the technical feature “the first signal is associated with the cell to which the first PDCCH belongs” means that the time-frequency resources and / or sequences occupied by the first signal and the index values ​​associated with the cell to which the first PDCCH belongs are configured or indicated in the same PDCCH order.

[0213] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the transmission timing of the first signal is based on the downlink timing of the cell to which the first PDCCH belongs.

[0214] In one embodiment, the technical feature "a first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the timing advance value of the first signal is the timing advance value of the downlink frame for the cell to which the first PDCCH belongs.

[0215] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" includes the meaning that the timing advance value of the downlink frame of the first signal for the cell to which the first PDCCH belongs is equal to 0.

[0216] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" is that the downlink of the first signal to the cell to which the first PDCCH belongs This implies that the value of the frame is equal to 0.

[0217] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs" means that for the downlink frame of the cell to which the first PDCCH having the same frame number belongs, the N of the uplink frame to which the first signal belongs in the time domain. TA However, this includes the meaning of being equal to 0.

[0218] In one embodiment, the technical feature "the first signal is associated with the cell to which the first PDCCH belongs" means that the configuration information of the first signal and the index (or identifier) ​​of the cell to which the first PDCCH belongs are configured in the same IE or field.

[0219] In one embodiment, an association relationship is configured or predefined between a first signal and the cell to which the first PDCCH belongs.

[0220] In one embodiment, the value of the first field conveyed by the first PDCCH may be equal to a single reserved value.

[0221] In one embodiment, if the value of the first field carried by the first PDCCH is equal to one reserved candidate value, the behavior of the first node device is undefined.

[0222] In one embodiment, the target configuration is one of X1 candidate configurations.

[0223] In one embodiment, the technical feature "the value of a first field carried by a first PDCCH is used to determine a target configuration from X1 candidate configurations" includes the meaning that the value of a first field carried by a first PDCCH is used by the first node device of this application to determine a target configuration from X1 candidate configurations.

[0224] In one embodiment, the technical feature "the value of a first field carried by a first PDCCH is used to determine a target configuration from X1 candidate configurations" includes the meaning that the value of a first field carried by a first PDCCH is used to explicitly or implicitly indicate a target configuration from X1 candidate configurations.

[0225] In one embodiment, the technical feature "the value of a first field carried by a first PDCCH is used to determine a target configuration from X1 candidate configurations" includes the meaning that the target configuration is a candidate configuration among X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

[0226] In one embodiment, the technical feature "the value of a first field carried by a first PDCCH is used to determine a target configuration from X1 candidate configurations" includes the meaning that the index or sequence number of the target configuration among the X1 candidate configurations is equal to the value of the first field carried by the first PDCCH.

[0227] In one embodiment, the technical feature "the value of a first field carried by the first PDCCH is used to determine a target configuration from X1 candidate configurations" includes the meaning that the value of the first field carried by the first PDCCH is used to explicitly or implicitly indicate an identifier for the target configuration among the X1 candidate configurations.

[0228] In one embodiment, the at least one cell determined by the target configuration is the at least one cell indicated or configured by the target configuration.

[0229] In one embodiment, at least one cell determined by the target configuration is a cell whose cell index or identifier is equal to at least one cell index or identifier indicated or configured by the target configuration.

[0230] In one embodiment, the target configuration is used to determine only one cell.

[0231] In one embodiment, the target configuration is used to determine multiple cells.

[0232] In one embodiment, the technical features "the first signal is associated with at least one cell determined by the target configuration" and "the at least one cell determined by the target configuration is associated with the first signal" are equivalent or interchangeable.

[0233] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" means that the cell constituting the first signal (or to which the resources of the first signal are allocated) is the same as the one cell determined by the target configuration.

[0234] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" means that the cell constituting the first signal (or to which the resources of the first signal are allocated) and the at least one cell determined by the target configuration belong to the same TAG (Timing Advance Group).

[0235] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the first signal is used for at least one cell determined by the target configuration.

[0236] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the first signal is used to obtain the timing advance (TA) of at least one cell determined for the target configuration.

[0237] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the first signal is associated with an index value associated with at least one cell determined by the target configuration.

[0238] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the first signal is configured for at least one cell determined by the target configuration, or for a group of cells comprising at least one cell determined by the target configuration.

[0239] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” means that the target receiver of the first signal is a network device of at least one cell determined by the target configuration.

[0240] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” means that the time-frequency resources and / or sequence occupied by the first signal are configured in at least one cell determined by the target configuration.

[0241] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the time-frequency resources and / or sequences occupied by the first signal are configured together with the index values ​​associated with at least one cell determined by the target configuration.

[0242] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the configuration information of the first signal is specific to the BWP contained in one cell determined by the target configuration.

[0243] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" means that the configuration of the BWP contained in at least one cell determined by the target configuration includes the configuration of the first signal.

[0244] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" means that the frequency domain resources occupied by the first signal belong to the BWP (bandwidth portion) contained within one cell determined by the target configuration.

[0245] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the time-frequency resources and / or sequences occupied by the first signal are configured in the IE or fields of at least one cell determined by the target configuration.

[0246] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the IE or field of at least one cell determined by the target configuration is used to determine the time-frequency resources and / or sequence occupied by the first signal.

[0247] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the IE or field of the BWP contained in one cell determined by the target configuration is used to determine the time-frequency resources and / or sequence occupied by the first signal.

[0248] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the random access preamble sequence index shown by the first PDCCH is for at least one cell determined by the target configuration.

[0249] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the uplink carrier / auxiliary uplink carrier indicator shown by the first PDCCH is for at least one cell determined by the target configuration.

[0250] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" means that the SS / PBCH (Synchronization Signal / Physical Broadcast Channel) index indicated by the first PDCCH is for at least one cell determined by the target configuration.

[0251] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the PRACH mask index indicated by the first PDCCH is for at least one cell determined by the target configuration.

[0252] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the target configuration includes configuration information (or configuration index) of the first signal.

[0253] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" means that the target configuration includes the index or identifier of at least one cell determined by the target configuration and the configuration information (or configuration index) of the first signal.

[0254] In one embodiment, the technical feature “the first signal is associated with at least one cell determined by the target configuration” includes the meaning that the fields of the IE or BWP contained in at least one cell determined by the target configuration are used to determine the configuration information or configuration index of the first signal.

[0255] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the configuration information or configuration index of the first signal is configured within the IE "SpCellConfig" included in the target configuration.

[0256] In one embodiment, the technical feature "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the configuration information or configuration index of the first signal is configured within the IE "SCellConfig" included in the target configuration.

[0257] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the time-frequency resources and / or sequences occupied by the first signal and the index value associated with at least one cell determined by the target configuration are configured or indicated in the same PDCCH order.

[0258] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the transmission timing of the first signal is the downlink timing of one cell determined based on the target configuration.

[0259] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the timing advance value of the first signal is the downlink frame timing advance value of one cell determined by the target configuration.

[0260] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" includes the meaning that the downlink frame timing advance value of the first signal for one cell determined by the target configuration is equal to 0.

[0261] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" is that N of the downlink frame of the first signal for one cell determined by the target configuration TA is equal to 0.

[0262] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" means that in the uplink frame to which the first signal belongs in the time domain, N of the downlink frames having the same frame number as one cell determined by the target configuration TA is equal to 0.

[0263] As one embodiment, the technical feature that "the first signal is associated with at least one cell determined by the target configuration" means that the configuration information of the first signal and the index (or identifier) of at least one cell determined by the target configuration are configured within the same IE or field.

[0264] As one embodiment, the number of bits included in the first field carried by the first PDCCH is equal to the ceiling value of the logarithmic value of the characteristic value to the base 2, and the characteristic value is equal to the upper limit value of X1.

[0265] As one embodiment, the number of bits included in the first field carried by the first PDCCH is equal to the ceiling value of the logarithmic value of the characteristic value to the base 2, and the characteristic value is equal to X1.

[0266] As one embodiment, the number of bits included in the first field carried by the first PDCCH is equal to the ceiling value of the logarithmic value of the characteristic value to the base 2, and the characteristic value is equal to the upper limit value of X1 plus 1.

[0267] As one embodiment, when the first information block is not provided, the number of bits included in the first field carried by the first PDCCH is equal to 0.

[0268] As one embodiment, when the first information block is not provided, the first PDCCH does not carry the first field.

[0269] In one embodiment, if a first information block is not provided, the bits carried by the first PDCCH corresponding to the first field are reserved bits.

[0270] In one embodiment, at least one capability parameter reported by the first node device is used to determine an upper limit on the time interval length between the first PDCCH and the first signal in the time domain.

[0271] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is used to determine an upper limit on the time interval length between the first PDCCH and the first signal in the time domain.

[0272] In one embodiment, information blocks other than the first information block are power ramping stations. A count value and power ramping step, determined by the first PDCCH and used to determine the step, are used together to determine the transmission power value of the first signal.

[0273] Embodiment 2 Embodiment 2 illustrates a schematic diagram of the network architecture according to this application, as shown in Figure 2. Figure 2 illustrates a diagram of the network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Advanced Packet System) 200 or any other preferred term. The 5GS / EPS 200 may include one or more of the following: UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, 5GS / EPS provides packet switching services, but those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks or other cellular networks that provide circuit switching services. The NG-RAN comprises NR / evolved node B(gNB / eNB)203 and other gNB(eNB)204. gNB(eNB)203 provides user and control plane protocol termination to UE201. gNB(eNB)203 may be connected to other gNB(eNB)204 via an Xn / X2 interface (e.g., backhaul). gNB(eNB)203 may also be referred to as base station, base transceiver station, radio base station, radio transceiver device, transceiver device function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver point), or any other preferred term. gNB(eNB)203 provides UE201 with an access point to 5GC / EPC210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radio, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia equipment, video equipment, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similarly functioning devices. Those skilled in the art may also refer to UE201 as a 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. gNB(eNB)203 is connected to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, another MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node that handles signaling between UE 201 and 5GC / EPC210. ​​Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted via S-GW / UPF 212, which itself is connected to P-GW / UPF 213. P-GW provides UE IP address assignment and other functions. P-GW / UPF 213 is connected to Internet services 230. Internet service 230 includes the operator's corresponding Internet Protocol services, which are... In particular, this may include the Internet, intranets, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0274] In one embodiment, UE201 corresponds to the first node device in this application.

[0275] In one embodiment, gNB(eNB)201 corresponds to the second node device in this application.

[0276] Embodiment 3 Embodiment 3, as shown in Figure 3, provides a schematic diagram of one embodiment of the wireless protocol architecture for the user plane and control plane according to this application. Figure 3 is a schematic diagram illustrating one embodiment of the wireless protocol architecture for the user plane 350 and control plane 300. Figure 3 shows a wireless protocol architecture for the control plane 300 of a first node device (UE or gNB) and a second node device (gNB or UE) using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. Layer L1 is referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first node device and the second node device through PHY 301. Layer L2 305 comprises MAC (Media Access Control) sublayer 302, RLC (Radio Link Control) sublayer 303, and PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and provides inter-cell mobility support for the first node device between the second node device. The RLC sublayer 303 provides segmentation and reassembly of upper-layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for disrupted reception caused by HARQ. The MAC sublayer 302 provides multiplexing between logical channels and transmission channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a single cell between the first node devices. The MAC sublayer 302 is also responsible for HARQ operation. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) 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 node device and the first node device. The radio protocol architecture of the user plane 350 comprises layer 1 (L1 layer) and layer 2 (L2 layer).The radio protocol architecture for the first and second node devices in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, except that the PDCP sublayer 354 also provides header compression for upper-layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptive Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown in the figure, the first node device may have multiple upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the network-side P-GW and an application layer (e.g., remote UE, server, etc.) terminating at the other end of the connection.

[0277] As one embodiment, the wireless protocol architecture shown in Figure 3 is applicable to the first node device in this application.

[0278] As one embodiment, the wireless protocol architecture shown in Figure 3 is applicable to the second node device in this application.

[0279] Embodiment 4 Embodiment 4, as shown in Figure 4, is a schematic diagram of a first node device and a second node device according to one embodiment of the present application.

[0280] The first node device (450) may comprise a controller / processor 490, a data source / buffer 480, a receiving processor 452, a transmission device / receiving device 456, and a transmission processor 455, the transmission device / receiving device 456 comprising an antenna 460.

[0281] The second node device (410) may include a controller / processor 440, a data source / buffer 430, a receiving processor 412, a transmitting / receiving device 416, and a transmitting processor 415, and the transmitting / receiving device 416 includes an antenna 420.

[0282] In DL (downlink), upper-layer packets, such as upper-layer information contained in the first information block in this application, are provided to the controller / processor 440. The controller / processor 440 implements L2 layer and upper-layer functions. In DL, the controller / processor 440 provides packet header compression, encryption, packet segmentation and sorting, multiplexing between logical channels and transport channels, and wireless resource allocation to the first node device 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the first node device 450. For example, the upper-layer information contained in the first information block in this application is generated in the controller / processor 440. The transmission processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation. For example, the generation of the physical layer signals corresponding to the first PDCCH and the second PDCCH that carry the first information block in this application is completed in the transmission processor 415. The generated modulation symbols are divided into parallel streams. Each stream is mapped to the corresponding multi-carrier subcarrier and / or multi-carrier symbol and then mapped to the antenna 420 by the transmission processor 415 via the transmission device 416 to be transmitted in the form of radio frequency signals. At the receiving end, each receiving device 456 receives the radio frequency signals via the corresponding antenna 460, and each receiving device 456 reconstructs the baseband information modulated on the radio frequency carrier and provides the baseband information to the receiving processor 452. The receiving processor 452 implements various signal receiving and processing functions for the L1 layer.The signal reception and processing function includes receiving physical layer signals carrying the first information block, the first PDCCH, and the second PDCCH in this application; demodulation based on various modulation schemes (e.g., two-phase shift modulation (BPSK) and four-phase shift modulation (QPSK)) using multi-carrier symbols in a multi-carrier symbol stream; and subsequently descrambling, decoding, and deinterleaving to reconstruct data or control transmitted by the second node device 410 on the physical channel; and then providing the reconstructed data and control signals to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and upper layers, and the controller / processor 490 interprets the upper layer information contained in the first information block in this application. The controller / processor may be associated with a memory 480 that stores program code and data. The memory 480 may be referred to as a computer-readable medium.

[0283] In uplink (UL) transmission, as in downlink transmission, the upper-layer information contained in the second information block in this application is generated by the controller / processor 490. The transmission processor 455 then implements various signal transmission processing functions for the L1 layer (i.e., the physical layer), including the generation of the physical layer signal that carries the second information block and the first signal in the transmission processor 455. The generated signal is then mapped by the transmission processor 455 to the antenna 460 via the transmission device 456 and transmitted in the form of a radio frequency signal. The receiving device 416 receives the radio frequency signal via the corresponding antenna 420, and each receiving device 416 reconstructs the baseband information modulated on the radio frequency carrier and provides the baseband information to the receiving processor 412. The receiving processor 412 implements various signal reception processing functions for the L1 layer (i.e., the physical layer), including receiving and processing the physical layer signal that carries the second information block and the first signal, and then providing data and / or control signals to the controller / processor 440. The functions for the L2 layer implemented in the controller / processor 440 include interpreting upper-layer information, which includes interpreting upper-layer information contained in a second information block. The controller / processor may be associated with a buffer 430 that stores program code and data. The buffer 430 may be a computer-readable medium.

[0284] In one embodiment, the first node 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 at least one processor, the first node device 450 receives a first information block used to determine at least X1 candidate configurations, where X1 is a positive integer, receives a first PDCCH carrying a first field, transmits a first signal, the first PDCCH is used to trigger the transmission of the first signal, the first signal is a random access preamplifier A blue sequence is carried, and any one of X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponding to X1 candidate values. If the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs. If the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0285] In one embodiment, the first node device 450 has a memory that stores a computer-readable instruction program which, when executed by at least one processor, generates an action, the action of receiving a first information block used to determine X1 candidate configurations, where X1 is a positive integer, receiving a first PDCCH that carries a first field, and transmitting a first signal, where the first PDCCH is used to trigger the transmission of the first signal, the first signal carries a random access preamble sequence, and any of the X1 candidate configurations Either one is used to determine at least one cell, and each of the X1 candidate configurations includes transmitting, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one determined by the target configuration It is associated with the cell.

[0286] In one embodiment, the second node device 410 comprises at least one processor and at least one memory, the at least one memory containing computer program code, and the at least one memory and the computer program code are configured to be used together with at least one processor. The second node device 410 transmits a first information block used to determine at least X1 candidate configurations, where X1 is a positive integer, transmits a first PDCCH carrying a first field, receives a first signal, the first PDCCH is used to trigger the transmission of a first signal, the first signal carries a random access preamble sequence, any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values, if the value of the first field carried by the first PDCCH is equal to a value other than one of the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0287] In one embodiment, the second node device 410, when executed by at least one processor, transmits a first information block used to determine X1 candidate configurations, where X1 is a positive integer; transmits a first PDCCH carrying a first field; and receives a first signal, where the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence; and any one of the X1 candidate configurations is used to determine at least one cell. Each auxiliary configuration corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration, the configuration includes a memory for storing a computer-readable instruction program that generates an operation.

[0288] In one embodiment, the first node device 450 is a single user device (UE).

[0289] In one embodiment, the second node device 410 is a single base station device (gNB / eNB).

[0290] In one embodiment, a receiving device 456 (including an antenna 460) and a receiving processor 452 are used in this application to receive a first PDCCH.

[0291] In one embodiment, a transmission device 456 (including an antenna 460) and a transmission processor 455 are used in this application to transmit a first signal.

[0292] In one embodiment, a receiving device 456 (including an antenna 460) and a receiving processor 452 are used in this application to monitor a second PDCCH.

[0293] In one embodiment, a transmission device 456 (including an antenna 460), a transmission processor 4 55, and the controller / processor 490 are used in this application to transmit the second information block.

[0294] In one embodiment, a receiving device 456 (including an antenna 460), a receiving processor 452, and a controller / processor 490 are used in this application to receive a first information block.

[0295] In one embodiment, a transmission device 416 (including an antenna 420) and a transmission processor 415 are used in this application to transmit a first PDCCH.

[0296] In one embodiment, a receiving device 416 (including an antenna 420) and a receiving processor 412 are used in this application to receive a first signal.

[0297] In one embodiment, a transmission device 416 (including an antenna 420) and a transmission processor 415 are used in this application to transmit a second PDCCH.

[0298] In one embodiment, a receiving device 416 (including an antenna 420), a receiving processor 412, and a controller / processor 440 are used in this application to receive a second information block.

[0299] Embodiment 5 Embodiment 5 illustrates a flowchart of wireless signal transmission according to one embodiment of the present application, as shown in Figure 5. In Figure 5, the second node device N500 is a maintenance base station for the serving cell of the first node device U550. It should be noted that the order in this example does not limit the order of signal transmission and implementation configuration in the present application.

[0300] For the second node device N500, the second information block is received in step S501, the first information block is transmitted in step S502, the first PDCCH is transmitted in step S503, the first signal is received in step S504, and the second PDCCH is transmitted in step S505.

[0301] In the case of the first node device U550, the second information block is transmitted in step S551, the first information block is received in step S552, the first PDCCH is received in step S553, the first signal is transmitted in step S554, and the second PDCCH is monitored in step S555.

[0302] In Embodiment 5, a first information block is used to determine X1 candidate configurations, where X1 is a positive integer; a first PDCCH carries a first field; the first PDCCH is used to trigger the transmission of a first signal, which carries a random access preamble sequence; any one of the X1 candidate configurations is used to determine at least one cell; each of the X1 candidate configurations corresponds to X1 candidate values; and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is transmitted. The first PDCCH is associated with the cell to which it belongs, and if the value of the first field carried by the first PDCCH is equal to one of X1 candidate values, the value of the first field carried by the first PDCCH is used to determine the target configuration from X1 candidate configurations, the first signal is associated with at least one cell determined by the target configuration, the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, and the second information block indicates that the first PDCCH carries the first field. The first PDCCH is used to determine that the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, and at least one of the relationships between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold, the second PDCCH is used to respond to the first signal, and the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0303] In one embodiment, the second information block is transmitted via an air interface or a wireless interface.

[0304] In one embodiment, the second information block includes all or part of the upper-layer signaling or physical-layer signaling.

[0305] In one embodiment, the second information block is located before the first information block.

[0306] In one embodiment, the second information block is located after the first information block.

[0307] In one embodiment, the second information block includes all or part of the RRC signaling, or the second information block includes all or part of the MAC layer signaling.

[0308] In one embodiment, the second information block is transmitted via PUSCH or PUCCH (physical uplink control channel).

[0309] In one embodiment, in this application, a second information block is used to indicate the capabilities of the first node device.

[0310] In one embodiment, the technical feature “the second information block is used to specify at least one capability parameter of the sender of the second information block” includes the meaning that the second information block is used by the first node device in this application to specify at least one capability parameter of the first node device.

[0311] In one embodiment, the technical feature “the second information block is used to indicate at least one capability parameter of the sender of the second information block” includes the meaning that all or part of the second information block is used to explicitly or implicitly indicate at least one capability parameter of the sender of the second information block.

[0312] In one embodiment, the second information block includes IE "BandCombinationList", or the second information block includes IE "UE-NR-Capability", or the second information block includes IE "RF-Parameters", or the second information block includes IE "BandNR", or the second information block includes IE "Phy-Parameters", or the second information block includes IE "Phy-ParametersCommon", or the second information block includes IE "Phy-ParametersCommon-v18a0".

[0313] In one embodiment, the second information block includes the field "LTM-CFRA", or the second information block includes the field "LTM-ServingCell", or the second information block includes the field "LTM-nonServingCell", or the second information block includes the field "LTM-nofCandidateCell", or the second information block includes the field "LTM-nofTargetCell".

[0314] In one embodiment, the second information block is used to indicate at least one capability parameter of the sender of the second information block, which includes at least one parameter in IE "Phy-ParametersFRX-Diff".

[0315] In one embodiment, a second information block is used to indicate at least one capability parameter of the sender of the second information block, and includes at least one parameter in the field "Phy-ParametersCommon".

[0316] In one embodiment, a second information block is used to indicate at least one capability parameter of the sender of the second information block, and includes at least one parameter within the field "BandNR".

[0317] In one embodiment, a second information block is used to indicate at least one capability parameter of the sender of the second information block, and includes at least one parameter in the field "BandCombinationList".

[0318] In one embodiment, the second information block is used to indicate at least one capability parameter of the sender of the second information block, which includes at least one parameter in the field "Phy-Parameters".

[0319] Embodiment 6 Embodiment 6 illustrates a schematic diagram of the first numerical value according to one embodiment of the present application, as shown in Figure 6. In Figure 6, the reference value is equal to X1+1.

[0320] In Embodiment 6, the value of the first number is equal to the number of bits contained in the first field carried by the first PDCCH in this application, the value of the first number is equal to the ceiling value of the logarithm of the reference value of base 2, and the reference value is equal to X1+1.

[0321] In one embodiment, the number of bits contained in the first field carried by the first PDCCH is the size of the first field carried by the first PDCCH.

[0322] In one embodiment, the number of bits contained in the first field carried by the first PDCCH is the number of information bits contained in the first field carried by the first PDCCH.

[0323] In one embodiment, the number of bits contained in the first field carried by the first PDCCH is the total number of all bits contained in the first field carried by the first PDCCH.

[0324] In one embodiment, the first numerical value is a positive integer.

[0325] In one embodiment, the first numerical value is equal to one of 1, 2, 3, or 4.

[0326] In one embodiment, the first numerical value is 8 or less.

[0327] In one embodiment, the first numerical value is 4 or less.

[0328] In one embodiment, the first numerical value is equal to one of 1, 2, or 3.

[0329] In one embodiment, the first numerical value is equal to one of 1 or 2.

[0330] In one embodiment, a first numerical value equal to the ceiling value of the base-2 logarithm of the reference value is implemented by satisfying the following equation. The first numerical value = log2V r In the formula, V r This represents the reference value.

[0331] In one embodiment, the first numerical value is implemented by satisfying the condition: first numerical value = log2(X1+1).

[0332] Embodiment 7 Embodiment 7 illustrates a schematic diagram of the relationship between X1 candidate configurations and X1 candidate values ​​according to one embodiment of the present application, as shown in Figure 7. In Figure 7, the left column represents candidate values, the right column represents candidate configurations, and X1 candidate configurations correspond one-to-one with X1 candidate values.

[0333] In Embodiment 7, each of the X1 candidate configurations in this application is used to constitute X1 identifiers, and each of the X1 candidate configurations corresponds one-to-one with each of the X1 candidate values ​​in this application in the order of the X1 identifiers in the sequence. The target configuration in this application is a candidate configuration that corresponds to the value of the first field carried by the first PDCCH in this application.

[0334] In one embodiment, X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers, thereby improving the flexibility of signaling for X1 candidate configurations.

[0335] In one embodiment, at least one of the X1 identifiers is a non-negative integer.

[0336] In one embodiment, one of the X1 identifiers is either a cell identifier or a cell index.

[0337] In one embodiment, any X1 identifier is a configuration (or reconfiguration) identifier or a configuration (or reconfiguration) index.

[0338] In one embodiment, one of the X1 identifiers is a physical cell identifier, PCID.

[0339] In one embodiment, one of the X1 identifiers is either a cell group identifier or a cell group index.

[0340] In one embodiment, any one of the X1 identifiers is an LTM cell configuration (or reconfiguration) identifier or an LTM cell configuration (or reconfiguration) index.

[0341] In one embodiment, one of the X1 identifiers is a candidate (target) cell configuration (or reconfiguration) identifier or a candidate (target) cell configuration (or reconfiguration) index.

[0342] In one embodiment, any one of the X1 identifiers is an LTM candidate (target) cell configuration (or reconfiguration) identifier or an LTM candidate (or target) cell configuration (or reconfiguration) index.

[0343] In one embodiment, any one of the X1 identifiers is the identifier or index of the corresponding candidate configuration among the X1 candidate configurations.

[0344] In one embodiment, the technical feature "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" includes the meaning that X1 candidate configurations correspond one-to-one with X1 candidate values ​​in ascending order of X1 identifiers.

[0345] In one embodiment, the technical feature "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" includes the meaning that X1 candidate configurations correspond one-to-one with X1 candidate values ​​in descending order of X1 identifiers.

[0346] In one embodiment, the technical feature that "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" includes the meaning that X1 candidate configurations in ascending order of X1 identifiers correspond one-to-one with X1 candidate values ​​in ascending order.

[0347] In one embodiment, the technical feature that "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" includes the meaning that X1 candidate configurations in ascending order of X1 identifiers correspond one-to-one with X1 candidate values ​​in descending order.

[0348] In one embodiment, the technical feature that "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" includes the meaning that X1 candidate configurations in descending order of X1 identifiers correspond one-to-one with X1 candidate values ​​in ascending order.

[0349] In one embodiment, the technical feature "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" includes the meaning that X1 candidate configurations in descending order of X1 identifiers correspond one-to-one with X1 candidate values ​​in descending order.

[0350] As one embodiment, the technical feature that "X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of X1 identifiers" means that X1 candidate values ​​are arranged or indexed sequentially in a given order, X1 candidate configurations are arranged or indexed sequentially in the order of X1 identifiers, and a candidate configuration corresponds to a candidate value that has the same arrangement position or the same index among the X1 candidate configurations and X1 candidate values. As one dependent embodiment of the above embodiment, the given order is from smallest to largest. As one dependent embodiment of the above embodiment, the predetermined order is from largest to smallest. As one dependent embodiment of the above embodiment, the given order is ascending. As one dependent embodiment of the above embodiment, the given order is descending. As one dependent embodiment of the above embodiment, the given order is ascending or descending in integer values ​​corresponding to X1 candidate values, respectively. As one dependent embodiment of the above embodiment, X1 candidate configurations are sequentially arranged or indexed according to the ascending order of X1 identifiers. As a dependent embodiment of the above embodiment, X1 candidate configurations are arranged or indexed sequentially in descending order of X1 identifiers.

[0351] In one embodiment, the order or index of the target configuration among the X1 candidate configurations is the same as the order or index of the values ​​of the first field carried by the first PDCCH among the X1 candidate values.

[0352] In one embodiment, the value of the first field carried by the first PDCCH is equal to the candidate value corresponding to the target configuration among X1 candidate values.

[0353] Embodiment 8 Embodiment 8, as shown in Figure 8, is a first candidate value set according to one embodiment of the present application. Let's illustrate with a schematic diagram. In Figure 8, the left column represents the first set of candidate values, and the right column represents the cells associated with the first signal.

[0354] In Embodiment 8, one of the X1 candidate values ​​in the present application belongs to a first set of candidate values, the value of the first field carried by the first PDCCH in the present application belongs to a first set of candidate values ​​including multiple candidate values, and the first signal in the present application associated with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value, the target value being one of the candidate values ​​in the first set of candidate values.

[0355] In one embodiment, the introduction of a target value supports dynamic switching of PRACH transmission between the source cell and the target cell (or candidate cell), saving signaling overhead.

[0356] In one embodiment, any candidate value included in the first set of candidate values ​​is one possible value of the first field carried by the first PDCCH.

[0357] In one embodiment, any candidate value included in the first set of candidate values ​​is one possible state of the first field carried by the first PDCCH.

[0358] In one embodiment, any candidate value included in the first set of candidate values ​​is a candidate value or a candidate state of a first field carried by the first PDCCH.

[0359] In one embodiment, the first candidate value set includes all possible values ​​of the first field carried by the first PDCCH.

[0360] In one embodiment, the first set of candidate values ​​includes all possible states of the first field carried by the first PDCCH.

[0361] In one embodiment, the first set of candidate values ​​includes only a portion of the possible values ​​of the first field carried by the first PDCCH.

[0362] In one embodiment, the first set of candidate values ​​includes only a portion of the possible states of the first field carried by the first PDCCH.

[0363] In one embodiment, any candidate value included in the first set of candidate values ​​is a non-negative integer.

[0364] In one embodiment, any candidate value included in the first set of candidate values ​​is a state of a bitmap.

[0365] In one embodiment, any candidate value included in the first set of candidate values ​​is a single value of a string.

[0366] In one embodiment, the first set of candidate values ​​includes at least one candidate value other than X1 candidate values.

[0367] In one embodiment, the first set of candidate values ​​includes one candidate value that is different from any one of the X1 candidate values.

[0368] In one embodiment, N1 is transported by a first PDCCH into a first field The number of candidate values ​​in the first set of candidate values ​​is equal to the number of bits included, and is equal to 2 to the power of N1.

[0369] In one embodiment, N1 is equal to the number of bits contained in the first field carried by the first PDCCH, and the number of candidate values ​​contained in the first set of candidate values ​​is equal to 2 to the power of (N1+1).

[0370] In one embodiment, N1 is equal to the number of bits contained in the first field carried by the first PDCCH, and the number of candidate values ​​contained in the first set of candidate values ​​is greater than 2 to the power of N1.

[0371] In one embodiment, N1 is equal to the number of bits contained in the first field carried by the first PDCCH, and the number of candidate values ​​contained in the first set of candidate values ​​is less than 2 to the power of N1.

[0372] In one embodiment, the number of candidate values ​​included in the first set of candidate values ​​is equal to 8.

[0373] In one embodiment, the number of candidate values ​​included in the first set of candidate values ​​is equal to 4.

[0374] In one embodiment, the number of candidate values ​​included in the first set of candidate values ​​is equal to 16.

[0375] In one embodiment, the number of candidate values ​​included in the first set of candidate values ​​is equal to 32.

[0376] In one embodiment, the technical feature "that a first signal is associated with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" includes the meaning that the value of the first field carried by the first PDCCH being equal to the target value is used to determine that the first signal is associated with the cell to which the first PDCCH belongs.

[0377] In one embodiment, the technical feature that "the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" includes the meaning that the value of the first field carried by the first PDCCH being equal to the target value is a condition for the first signal to be associated with the cell to which the first PDCCH belongs.

[0378] In one embodiment, the technical feature that "the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" means that the first signal is associated with the cell to which the first PDCCH belongs if the value of the first field carried by the first PDCCH is configured to be equal to the target value.

[0379] In one embodiment, the technical feature that "the association of the first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" includes the meaning that if the value of the first field carried by the first PDCCH is equal to the target value, then the first signal is associated with the cell to which the first PDCCH belongs.

[0380] In one embodiment, the technical feature that "the first signal is associated with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" is defined as the first field carried by the first PDCCH This means that if the value of field 1 is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs; otherwise, the first signal is associated with at least one cell determined by the target configuration.

[0381] In one embodiment, the technical feature that "the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" includes the meaning that if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs; otherwise, the first signal is associated with a cell other than the cell to which the first PDCCH belongs.

[0382] In one embodiment, the technical feature that "the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" includes the meaning that if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs; otherwise, the first signal is associated with a cell other than the cell to which the first PDCCH belongs, or is in a reserved state.

[0383] In one embodiment, the technical feature "the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to the target value" means that if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of X1 candidate values, the first signal is associated with at least one cell determined by the target configuration.

[0384] In one embodiment, the target value is a predefined candidate value within a first set of candidate values.

[0385] In one embodiment, the target value is one configured candidate value within the first set of candidate values.

[0386] In one embodiment, the target value is any candidate value other than the X1 candidate values ​​in the first set of candidate values.

[0387] In one embodiment, the target value is the smallest candidate value within the first set of candidate values.

[0388] In one embodiment, the target value is the maximum candidate value within the first set of candidate values.

[0389] In one embodiment, the target value is a candidate value in a first set of candidate values ​​that corresponds to all bits in a first field that are set to "0".

[0390] In one embodiment, the target value is a candidate value in a first set of candidate values ​​that corresponds to all bits in a first field that is set to "1".

[0391] In one embodiment, the target value is a candidate value in a first set of candidate values ​​that is 1 greater than the largest candidate value among the X1 candidate values.

[0392] In one embodiment, the target value is a candidate value in a first set of candidate values ​​that is 1 less than the smallest candidate value among the X1 candidate values.

[0393] In one embodiment, the target value is equal to 0.

[0394] Embodiment 9 Embodiment 9 illustrates a schematic diagram of the relationship between a first PDCCH and a first signal according to one embodiment of the present application, as shown in Figure 9. In Figure 9, the horizontal axis represents time, the rectangles filled with crosshairs represent the first PDCCH, and the rectangles filled with diagonal lines represent the first signal.

[0395] In Embodiment 9, the second information block in the present application is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that the first PDCCH in the present application carries a first field, the time interval length between the first PDCCH in the present application and the first signal in the time domain is greater than or equal to a first threshold, and at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold.

[0396] In one embodiment, the first threshold is associated with the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, which takes into account different delay requirements for different scenarios and reduces the complexity of the product implementation.

[0397] In one embodiment, the technical feature “the second information block is used to determine that the first PDCCH carries the first field” includes the meaning that the second information block is used by the receiver of the second information block to determine that the first PDCCH carries the first field.

[0398] In one embodiment, the technical feature “the second information block is used to determine that the first PDCCH carries the first field” includes the meaning that all or part of the second information block is used to explicitly or implicitly indicate that the first PDCCH carries the first field.

[0399] In one embodiment, the technical feature “the second information block is used to determine that the first PDCCH carries the first field” means that all or part of the second information block is used to explicitly or implicitly indicate that the sender of the second information block has the ability to support target characteristics, and the ability to support target characteristics is used to determine that the first PDCCH carries the first field.

[0400] In one embodiment, the technical feature “the second information block is used to determine that the first PDCCH carries the first field” includes the meaning that all or part of the second information block is used to explicitly or implicitly indicate that the sender of the second information block has the capability to support the first PDCCH carrying the first field.

[0401] In one embodiment, the technical feature "a second information block is used to determine that the first PDCCH carries a first field" means that all or part of the second information block is used to explicitly or implicitly indicate that the sender of the second information block has the capability to support target characteristics, and that the first PDCCH can be configured to carry the first field by signaling only if the sender of the second information block has the capability to support target characteristics. It includes the meaning of including.

[0402] In one embodiment, the technical feature “a second information block is used to determine that the first PDCCH carries a first field” includes the meaning that all or part of the second information block is used to explicitly or implicitly indicate that the sender of the second information block has the capability to support a target characteristic, and that only if the sender of the second information block has the capability to support a target characteristic the signaling configures the first PDCCH to carry a first field, and otherwise the signaling does not configure the first PDCCH to carry a first field.

[0403] In one embodiment, the technical feature "a second information block is used to determine whether the first PDCCH carries the first field" includes the meaning that if the second information block is not provided, the first PDCCH does not carry the first field, and if the second information block is provided, the first PDCCH carries the first field.

[0404] In one embodiment, the technical feature "a second information block is used to determine that the first PDCCH carries the first field" means that if the second information block is not provided, the first node device does not expect (or assume) that the first PDCCH carries the first field, and if the second information block is provided, the first node device expects (or assumes) that the first PDCCH carries the first field.

[0405] In one embodiment, the technical feature “a second information block is used to determine that the first PDCCH carries the first field” includes the meaning that if the second information block is not provided, the first PDCCH does not carry the first field, and if the second information block is provided, the signaling configures the first PDCCH to carry the first field.

[0406] In one embodiment, the technical feature “a second information block is used to determine that the first PDCCH carries the first field” includes the meaning that if the second information block is not provided, the first node device does not expect (or assume) that the first PDCCH carries the first field; if the second information block is provided and signaling is configured to cause the first PDCCH to carry the first field, the first node device expects (or assumes) that the first PDCCH carries the first field; and if the second information block is provided and signaling is configured to cause the first PDCCH to carry the first field, the first node device does not expect (or assume) that the first PDCCH carries the first field.

[0407] In one embodiment, the technical feature “the second information block is used to determine that the first PDCCH carries the first field” means that all or part of the second information block is used to explicitly or implicitly indicate that the sender of the second information block has the capability to support LTM, and that the sender of the second information block, having the capability to support LTM, is used to determine that the first PDCCH carries the first field.

[0408] In one embodiment, a technical feature is that "the second information block is used to determine that the first PDCCH carries the first field," where all or part of the second information block supports the LTM of a non-serving cell. It is used to explicitly or implicitly indicate that it has the ability to do so, and includes the meaning that the sender of the second information block, which has the ability to support the LTM of a non-serving cell, is used to determine that the first PDCCH carries the first field.

[0409] In one embodiment, the last symbol of the reception of the first PDCCH is not later than the earliest symbol of the transmission of the first signal.

[0410] In one embodiment, the last symbol of the reception of the first PDCCH is earlier than the earliest symbol of the transmission of the first signal.

[0411] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the last symbol of reception of the first PDCCH and the earliest symbol of transmission of the first signal.

[0412] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is the time domain delay between the first PDCCH and the first signal.

[0413] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the end time of the last symbol of reception of the first PDCCH and the start time of the earliest symbol of transmission of the first signal.

[0414] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the start time of the last symbol of reception of the first PDCCH and the start time of the earliest symbol of transmission of the first signal.

[0415] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the end time of the last symbol of reception of the first PDCCH and the end time of the earliest symbol of transmission of the first signal.

[0416] In one embodiment, the unit of the time interval length between the first PDCCH and the first signal in the time domain is milliseconds (ms).

[0417] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is represented by the number of symbols.

[0418] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is expressed in absolute time.

[0419] In one embodiment, the unit of the first threshold is milliseconds.

[0420] In one embodiment, the first threshold is expressed in terms of absolute time.

[0421] In one embodiment, the first threshold is represented by the number of symbols.

[0422] In one embodiment, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold.

[0423] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is such that the cell associated with the first signal is the same as the cell to which the first PDCCH belongs. This includes whether or not they are the same.

[0424] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same cell group (CG).

[0425] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same TAG (Timing Advance Group).

[0426] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether the cell associated with the first signal and the cell to which the first PDCCH belongs are in-frequency cells or inter-frequency cells.

[0427] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether both the cell associated with the first signal and the cell to which the first PDCCH belongs are serving cells.

[0428] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether both the cell associated with the first signal and the cell to which the first PDCCH belongs are active cells.

[0429] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether the cell associated with the first signal and the cell to which the first PDCCH belongs are within the same frequency range (FR).

[0430] In one embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs includes whether the cell associated with the first signal and the cell to which the first PDCCH belongs employ the same duplexing scheme.

[0431] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold" includes the meaning that both the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, and the second information block, are used to determine the first threshold.

[0432] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold" includes the meaning that the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is used to determine the first threshold.

[0433] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold" includes the meaning that the second information block is used to determine the first threshold.

[0434] In one embodiment, the technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold." This includes the meaning that at least one of the relationship between the PDCCH and the cell to which it belongs, or a second information block, is used by the first node device of this application to determine the first threshold.

[0435] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or the second information block, is used to determine the first threshold" includes the meaning that at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or the second information block, is used to calculate the first threshold.

[0436] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold" includes the meaning that at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the value of at least one component included in the first threshold.

[0437] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or a second information block is used to determine the first threshold" includes the meaning that the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is used to determine the value of one component included in the first threshold, and the second information block is used to determine the value of another component included in the first threshold.

[0438] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or a second information block is used to determine the first threshold" includes the meaning that the second information block is used to determine the value of at least one component included in the first threshold.

[0439] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold" includes the meaning that at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the value of at least one parameter used when the first threshold is calculated.

[0440] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or a second information block is used to determine the first threshold" includes the meaning that the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is used to determine the value of another parameter used when the first threshold is calculated, and the second information block is used to determine the value of another parameter used when the first threshold is calculated.

[0441] In one embodiment, the technical feature that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or a second information block is used to determine the first threshold" means that the target parameter value is used to determine the first threshold, and when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a first relationship, the target parameter value is equal to a first candidate value, and the cell associated with the first signal and the cell to which the first PDCCH belongs When the relationship between them is a second relationship, it means that the target parameter value is equal to the second candidate value, and that it includes the condition that the condition is met.

[0442] -In a dependent embodiment of the above embodiment, the first candidate value and the second candidate value are not equal, the first candidate value is predefined or configurable or related to the capabilities of the first node device, and the second candidate value is predefined or configurable or related to the capabilities of the first node device.

[0443] -As a dependent embodiment of the above embodiment, "the target parameter value is used to determine the first threshold" includes the fact that the target parameter value is the value of one parameter used when the first threshold is calculated.

[0444] -As a dependent embodiment of the above embodiment, "the target parameter value is used to determine the first threshold" includes the first threshold being linearly correlated with the target parameter value.

[0445] -As a dependent embodiment of the above embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is only one of the first relationship or the second relationship.

[0446] -As a dependent embodiment of the above embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs may be a relationship other than the first relationship or the second relationship.

[0447] -As a dependent embodiment of the above embodiment, the first relationship and the second relationship are different.

[0448] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are the same, and the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different.

[0449] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are a secondary cell and a primary cell, respectively, and the second relationship means that the cell associated with the first signal is a non-serving cell and the cell to which the first PDCCH belongs is a serving cell.

[0450] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same TAG, and the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to different TAGs, respectively.

[0451] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs are within the same frequency; the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs are between frequencies.

[0452] -As a dependent embodiment of the above embodiment, the first relationship is such that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and The first relationship means that the cell to which the first PDCCH belongs belongs to the same cell group. The second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and that the cell associated with the first signal and the cell to which the first PDCCH belongs each belong to different cell groups.

[0453] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same cell group, and the cell associated with the first signal and the cell to which the first PDCCH belongs are a secondary cell and a primary cell, respectively; the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same cell group, the cell associated with the first signal is a non-serving cell, and the cell to which the first PDCCH belongs is a serving cell.

[0454] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same frequency range (FR), and the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs belong to different frequency ranges.

[0455] In one embodiment, the technical feature "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or a second information block is used to determine the first threshold" means that when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a first relationship, the first threshold is equal to a first candidate value, and when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a second relationship, the first threshold is equal to the sum (or difference) between the first candidate value and the first offset value.

[0456] -As a dependent embodiment of the above embodiment, the first candidate value is predefined, configurable, or related to the capabilities of the first node device, and the first offset value is predefined, configurable, or related to the capabilities of the first node device.

[0457] -As a dependent embodiment of the above embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is only one of the first relationship or the second relationship.

[0458] -As a dependent embodiment of the above embodiment, the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs may be a relationship other than the first relationship or the second relationship.

[0459] -As a dependent embodiment of the above embodiment, the first relationship and the second relationship are different.

[0460] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are the same, and the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different.

[0461] -As a dependent embodiment of the above embodiment, the first relationship is such that the cell associated with the first signal and the cell to which the first PDCCH belongs are a secondary cell and a pry cell, respectively. The first relationship means that the cell associated with the first signal is a non-serving cell, and the cell to which the first PDCCH belongs is a serving cell.

[0462] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same TAG, and the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to different TAGs.

[0463] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs are within the same frequency; the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs are between frequencies.

[0464] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same cell group; the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs each belong to different cell groups.

[0465] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same cell group, and the cell associated with the first signal and the cell to which the first PDCCH belongs are a secondary cell and a primary cell, respectively; the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same cell group, the cell associated with the first signal is a non-serving cell, and the cell to which the first PDCCH belongs is a serving cell.

[0466] -As a dependent embodiment of the above embodiment, the first relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs belong to the same frequency range (FR), and the second relationship means that the cell associated with the first signal and the cell to which the first PDCCH belongs are different, and the cell associated with the first signal and the cell to which the first PDCCH belongs belong to different frequency ranges.

[0467] As one embodiment, the technical feature that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold" means that both the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs and the second information block are used as parameters N for determining the value of N when the first threshold is calculated. T,2 This includes the meaning that it is used to determine the value of N.

[0468] As one embodiment, the technical feature that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold" means that the second information block is used to determine the value of parameter N when the first threshold is calculated. T,2 This includes the meaning that it is used to determine the value of N.

[0469] As one embodiment, the technical feature that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold" means that the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is used to determine the value of parameter Δ when the first threshold is calculated. BWPSwitching This includes the meaning that it is used to determine the value of Δ.

[0470] As one embodiment, the technical feature that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold" means that the second information block is used to determine the value of parameter Δ when the first threshold is calculated. BWPSwitching This includes the meaning that it is used to determine the value of Δ.

[0471] In one embodiment, the technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold," where the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a parameter used when the first threshold is calculated. Delay This includes the meaning of being used to determine the value.

[0472] In one embodiment, the technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold," wherein the second information block is a parameter used when the first threshold is calculated. Delay This includes the meaning of being used to determine the value.

[0473] In one embodiment, the technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold," wherein the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a parameter T used when the first threshold is calculated. switch This includes the meaning of being used to determine the value.

[0474] In one embodiment, a technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold," wherein the second information block is a parameter T used when the first threshold is calculated. switch This includes the meaning of being used to determine the value.

[0475] In one embodiment, the technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold," where the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a parameter used when the first threshold is calculated. LTM Used to determine the value of parameter △ LTM This is parameter N T,2 , parameter △ BWPSwitching , parameter △ Delay , or parameter T switch This includes the meaning of a parameter value other than the given value.

[0476] In one embodiment, the technical feature is that "at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or a second information block, is used to determine the first threshold," wherein the second information block is a parameter used when the first threshold is calculated. LTM Used to determine the value of parameter △ LTM This is parameter N T,2 , parameter △ BWPSwitching , parameter △ Delay , or parameter T switch This means that the parameter value is anything other than the parameter value. Includes.

[0477] Embodiment 10 Embodiment 10 illustrates a schematic diagram of a target time window according to one embodiment of the present application, as shown in Figure 10. In Figure 10, the horizontal axis represents time, the shaded rectangular frame represents the first signal, and the crosshairs represent the second PDCCH, which belongs to the target time window in the time domain.

[0478] In Embodiment 10, the second PDCCH in this application is used to respond to the first signal in this application, and the value of the first field in this application is used to determine at least one of the time length of the target time window or the start time of the target time window in this application.

[0479] In one embodiment, the random access response time window related to the target time window and the cell to which the first PDCCH belongs are configured independently to meet the needs of different scenarios and improve flexibility.

[0480] In one embodiment, the target time window is the random access response window.

[0481] In one embodiment, the target time window is a random access response time window for the cell associated with the first signal.

[0482] In one embodiment, the target time window is the LTM response time window.

[0483] In one embodiment, the target time window is the LTM response time window of the cell associated with the first signal.

[0484] In one embodiment, the target time window is used to determine the monitoring of the second PDCCH.

[0485] In one embodiment, the time domain resources occupied by the second PDCCH belong to the target time window.

[0486] In one embodiment, the target time window includes a time domain resource of the second PDCCH.

[0487] In one embodiment, the first node device assumes or anticipates that the second PDCCH will be transmitted within a target time window.

[0488] In one embodiment, monitoring of the second PDCCH is implemented by decoding the PDCCH candidate.

[0489] In one embodiment, monitoring of the second PDCCH is implemented by a blind composite of PDCCH candidates.

[0490] In one embodiment, monitoring of the second PDCCH is implemented by decoding the PDCCH candidate and CRC.

[0491] In one embodiment, monitoring of the second PDCCH involves PDCCH candidates and RNTI (wireless network This is implemented by decrypting the CRC, which has been scrambled by the twerk's temporary identity.

[0492] In one embodiment, the monitoring of a second PDCCH is implemented based on the decoding of one or more PDCCH candidates in DCI format to be monitored.

[0493] In one embodiment, the second PDCCH is the baseband signal or radio frequency signal of the PDCCH.

[0494] In one embodiment, a second PDCCH is used to carry (or transmit) DCI.

[0495] In one embodiment, the DCI bit is used to generate a second PDCCH.

[0496] In one embodiment, the second PDCCH carries a DCI that adopts DCI format 1_0.

[0497] In one embodiment, the second PDCCH carries a DCI that adopts DCI format 1_1.

[0498] In one embodiment, the second PDCCH carries a DCI that adopts DCI format 1_2.

[0499] In one embodiment, the second PDCCH carries a DCI that adopts the DCI format 2_k, where k is a non-negative integer.

[0500] In one embodiment, the CRC of the second PDCCH is scrambled by C-RNTI.

[0501] In one embodiment, the CRC in DCI format adopted by the DCI transported by the second PDCCH is scrambled by C-RNTI.

[0502] In one embodiment, the CRC of the second PDCCH is scrambled by RA-RNTI (Random Access Radio Network Temporary Identifier).

[0503] In one embodiment, the CRC in DCI format adopted by the DCI transported by the second PDCCH is scrambled by RA-RNTI.

[0504] In one embodiment, the CRC of the second PDCCH is scrambled by LTM-RNTI.

[0505] In one embodiment, the CRC in DCI format adopted by the DCI transported by the second PDCCH is scrambled by LTM-RNTI.

[0506] In one embodiment, the CRC of a second PDCCH is scrambled by a signaling-configured target RNTI. In one dependent embodiment of the above embodiment, the target RNTI is signaling-configured for the RRC (Radio Resource Control) layer. In one dependent embodiment of the above embodiment, the target RNTI is signaling-configured for the MAC (Media Access Control) layer. In one dependent embodiment of the above embodiment, the target RNTI is signaling-configured to configure (or trigger) the LTM. As a dependent embodiment of the above embodiment, the target RNTI is configured to signal to the cell associated with the first signal. As a dependent embodiment of the above embodiment, the target RNTI is configured to signal to configure (or trigger) the LTM to the cell associated with the first signal. As a dependent embodiment of the above embodiment, the target RNTI is configured by signaling dedicated to the UE.

[0507] In one embodiment, the CRC of the DCI format used in the DCI carried to the second PDCCH is scrambled by a target RNTI configured for signaling. In one dependent embodiment of the above embodiment, the target RNTI is configured for signaling the RRC (Radio Resource Control) layer. In one dependent embodiment of the above embodiment, the target RNTI is configured for signaling the MAC (Media Access Control) layer. In one dependent embodiment of the above embodiment, the target RNTI is configured for signaling to configure (or trigger) the LTM. In one dependent embodiment of the above embodiment, the target RNTI is configured for signaling the cell associated with the first signal. In one dependent embodiment of the above embodiment, the target RNTI is configured for signaling the cell associated with the first signal. In one dependent embodiment of the above embodiment, the target RNTI is configured for signaling exclusively for the UE.

[0508] In one embodiment, at least one fixed (or predefined) field included in the DCI carried by the second PDCCH is set to a predefined value.

[0509] In one embodiment, all frequency domain resource allocation fields included in the DCI carried by the second PDCCH are equal to "1".

[0510] In one embodiment, the PDCCH candidate occupied by the second PDCCH belongs to the common search space set.

[0511] In one embodiment, the PDCCH candidate occupied by the second PDCCH belongs to a set of common search spaces of type 1.

[0512] In one embodiment, the PDCCH candidate occupied by the second PDCCH belongs to a common search space set of type 1A.

[0513] In one embodiment, the PDCCH candidate occupied by the second PDCCH belongs to a common search space set of type 1B.

[0514] In one embodiment, the PDCCH candidates occupied by the second PDCCH belong to a UE-specific set of search spaces.

[0515] In one embodiment, the search space set to which the PDCCH candidates occupied by the second PDCCH belong exclusively occupies one CORESET (control resource set).

[0516] In one embodiment, the search space set to which the PDCCH candidates occupied by the second PDCCH belong exclusively occupies one CORESET (control resource set) within the target time window.

[0517] In one embodiment, the search space set to which the PDCCH candidate occupied by the second PDCCH belongs is not associated with the same CORESET as other search space sets.

[0518] In one embodiment, the search space set to which the PDCCH candidate occupied by the second PDCCH belongs is not associated with the same CORESET as other search space sets within the target time window.

[0519] In one embodiment, the search space set to which the PDCCH candidates occupied by the second PDCCH belong is configured as a signaling system.

[0520] In one embodiment, the first search space set is the search space set to which the PDCCH candidates occupied by the second PDCCH belong, and the first node device does not expect to monitor PDCCHs belonging to another search space set in a CORESET associated with the first search space set.

[0521] In one embodiment, the first search space set is the search space set to which the PDCCH candidates occupied by the second PDCCH belong, and the first node device does not expect any complete or partial overlap in the time domain between the first search space set and another search space set associated with the same CORESET as the first search space set.

[0522] In one embodiment, the first search space set is the search space set to which the PDCCH candidates occupied by the second PDCCH belong, and the first node device does not anticipate any complete or partial overlap of time-domain monitoring opportunities (MOs) between the first search space set and another search space set associated with the same CORESET as the first search space set.

[0523] In one embodiment, the first search space set is the search space set to which the PDCCH candidates occupied by the second PDCCH belong, and the first node device does not expect to monitor PDCCHs belonging to another search space set in a CORESET associated with the first search space set within a target time window.

[0524] In one embodiment, the first search space set is the search space set to which the PDCCH candidates occupied by the second PDCCH belong, and the first node device does not expect any complete or partial overlap in the time domain between the first search space set and another search space set associated with the same CORESET as the first search space set within the target time window.

[0525] In one embodiment, the first search space set is the search space set to which the PDCCH candidates occupied by the second PDCCH belong, and the first node device does not anticipate any complete or partial overlap of monitoring opportunities (MOs) in the time domain between the first search space set and another search space set associated with the same CORESET as the first search space set within the target time window.

[0526] In one embodiment, the first PDCCH and the second PDCCH belong to the same cell.

[0527] In one embodiment, the first PDCCH and the second PDCCH belong to different cells.

[0528] In one embodiment, the second PDCCH belongs to the cell associated with the first signal.

[0529] In one embodiment, the technical feature is that "a second PDCCH is used to respond to the first signal," where the second PDCCH is used to respond to the first signal. It includes the meaning of being used for.

[0530] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” includes the meaning that the signal or channel responding to the first signal includes a second PDCCH.

[0531] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” includes the meaning that the second PDCCH is transmitted for the first signal.

[0532] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal triggers the transmission of the second PDCCH.

[0533] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal is used to determine the start time of a target time window.

[0534] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” includes the meaning that the first signal is used to determine the time-frequency resources to be occupied by the second PDCCH.

[0535] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal is used to determine the cell to which the second PDCCH belongs.

[0536] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal is used to determine the time window to which the second PDCCH belongs in the time domain.

[0537] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal is used to determine the CORESET to which the second PDCCH belongs.

[0538] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" means that the first signal is used to determine the cell to which the second PDCCH belongs, and the cell to which the second PDCCH belongs is used to determine the CORESET to which the second PDCCH belongs.

[0539] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” includes the meaning that the first signal is used to determine the type or value of the RNTI to be carried to the second PDCCH.

[0540] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal and the second PDCCH belong to the same random access procedure.

[0541] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” includes the meaning that the second PDCCH belongs to a random access procedure initiated or triggered by the first signal.

[0542] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the first signal and the second PDCCH belong to the same LTM procedure.

[0543] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the second PDCCH belongs to an LTM procedure initiated or triggered by the first signal.

[0544] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" includes the meaning that the second PDCCH is slower than the first signal in the time domain.

[0545] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is the earliest PDCCH in the time domain at least a first time length later than the first signal, carrying the timing advance value of the cell associated with the first signal, the first time length being predefined, configurable, or related to the capabilities of the first node device.

[0546] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is the latest PDCCH in a time domain at least a first time length later than the first signal, carrying the timing advance value of the cell associated with the first signal, where the first time length is predefined, configurable, or related to the capabilities of the first node device.

[0547] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is a PDCCH having the smallest or largest index of its CORESET among all the earliest PDCCHs in the time domain, which carries the timing advance value of the cell associated with the first signal at least a first time length later than the first signal, and the first time length is predefined, configurable, or related to the capabilities of the first node device.

[0548] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is a PDCCH having the smallest or largest index among all the latest PDCCHs in the time domain, which carry the timing advance value of the cell associated with the first signal at least a first time length later than the first signal, and the first time length is predefined, configurable, or related to the capabilities of the first node device.

[0549] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the target PDSCH (physical downlink shared channel) is the earliest PDSCH in the time domain at least two time lengths later than the first signal, carrying the timing advance value of the cell associated with the first signal, and the second PDCCH is a PDCCH used to schedule the target PDSCH, the second time length being predefined, configurable, or related to the capabilities of the first node device.

[0550] In one embodiment, the technical feature "a second PDSCH is used to respond to a first signal" means that the target PDSCH is the latest PDSCH in the time domain at least two time lengths later than the first signal, and the cell associated with the first signal The second PDCCH carries the timing advance value, and is a PDCCH used to schedule the target PDSCH, with the second time length being predefined, configurable, or related to the capabilities of the first node device.

[0551] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the target PDSCH is a PDSCH belonging to a CORESET having the minimum or maximum index of all the earliest PDSCHs in the time domain that carry the timing advance value of the cell associated with the first signal, at least two time lengths later than the first signal, and the second PDCCH is a PDCCH used to schedule the target PDSCH, with the second time length being predefined, configurable, or related to the capabilities of the first node device.

[0552] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the target PDSCH is a PDSCH belonging to a CORESET having the minimum or maximum index of all the latest PDSCHs in the time domain that carry the timing advance value of the cell associated with the first signal, at least two time lengths later than the first signal, and the second PDCCH is a PDCCH used to schedule the target PDSCH, and the second time length is predefined, configurable, or related to the capabilities of the first node device.

[0553] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is at least a third time length behind the first signal in the time domain, and the PDSCH scheduled by the second PDCCH is the earliest PDSCH carrying the timing advance value of the cell associated with the first signal, with the third time length being predefined, configurable, or related to the capabilities of the first node device.

[0554] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is at least a third time length behind the first signal in the time domain, and the PDSCH scheduled by the second PDCCH is a modern PDSCH that carries the timing advance value of the cell associated with the first signal, and the third time length is predefined, configurable, or related to the capabilities of the first node device.

[0555] In one embodiment, the technical feature “a second PDCCH is used to respond to a first signal” means that the second PDCCH is at least a third time length slower than the first signal in the time domain, and the second PDCCH is the PDCCH whose CORESET has the smallest or largest index among all scheduling PDCCHs of at least one earliest PDSCH that carries the timing advance value of the cell associated with the first signal, and the third time length is predefined, configurable, or related to the capabilities of the first node device.

[0556] In one embodiment, the technical feature "a second PDCCH is used to respond to a first signal" means that the second PDCCH is at least a third time length behind the first signal in the time domain, and the second PDCCH is a PDCCH with the smallest or largest index of CORESET among all scheduling PDCCHs of at least one latest PDSCH that carries the timing advance value of the cell associated with the first signal, and the third time length is predefined, configurable, or of the first node This includes the meaning related to the capabilities of the device.

[0557] In one embodiment, the second PDCCH is detected within a target time window used to determine that the procedure to which the first signal belongs has been completed.

[0558] In one embodiment, the second PDCCH is detected within a target time window used to determine whether the procedure to which the first signal belongs has been successful.

[0559] In one embodiment, the length of the target time window is represented by the number of time slots.

[0560] In one embodiment, the time length of the target time window is an absolute time length.

[0561] In one embodiment, the unit of the time length of the target time window is milliseconds.

[0562] In one embodiment, the duration of the target time window is represented by the number of symbols.

[0563] In one embodiment, the time length of the target time window is represented by the number of subframes.

[0564] In one embodiment, the time length of the target time window is expressed as the number of slots corresponding to the subcarrier intervals of the subcarriers occupied by the second PDCCH in the frequency domain.

[0565] In one embodiment, the time length of the target time window is represented by the number of time slots corresponding to the subcarrier intervals of the BWP in the cell associated with the first signal.

[0566] In one embodiment, the start time of the target time window is the position of the start symbol included in the target time window.

[0567] In one embodiment, the start time of the target time window is the time interval length between the start symbol included in the target time window and the first signal.

[0568] In one embodiment, the start time of the target time window is the minimum time interval between the start symbol included in the target time window and the first signal.

[0569] In one embodiment, the technical feature “the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window” includes the meaning that the value of the first field is used by the first node device in this application to determine at least one of the time length of the target time window or the start time of the target time window.

[0570] In one embodiment, the technical feature "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window" includes the meaning that the value of the first field is used to determine the time length of the target time window and the start time of the target time window.

[0571] As one embodiment, "the value of the first field is the time length of the target time window." The technical feature “used to determine at least one of the start times of the target time window” includes the meaning that the value of the first field is used to determine the length of the target time window.

[0572] In one embodiment, the technical feature "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window" includes the meaning that the value of the first field is used to determine the start time of the target time window.

[0573] In one embodiment, the technical feature “the value of the first field is used to determine at least one of the length of the target time window or the start time of the target time window” includes the meaning that the value of the first field is used to explicitly or implicitly indicate at least one of the length of the target time window or the start time of the target time window.

[0574] In one embodiment, the technical feature “the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window” includes the meaning that the cell associated with the first signal is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0575] In one embodiment, the technical feature "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window" includes the meaning that the target configuration is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0576] In one embodiment, the technical feature “the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window” includes the following meaning: X1 candidate configurations are used to determine X1 candidate lengths and X1 candidate delay lengths, respectively; signaling for the cell to which the first PDCCH belongs is used to determine the first candidate length; if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate value, the time length of the target time window is equal to the first candidate length, and the start time of the target time window is at least from the last symbol of the PRACH opportunity occupied by the first signal. If the earliest symbol of the earliest CORESET associated with the Type 1 PDCCH common search space set is at least S1 symbols away from the last symbol of the PRACH opportunity occupied by the first signal, and the value of the first field carried by the first PDCCH is equal to one of X1 candidate values, then the time length of the target time window is equal to the candidate length determined by the target configuration among X1 candidate lengths, and the start time of the target time window is at least S1 symbols away from the earliest symbol of the earliest CORESET associated with the Type 1 PDCCH common search space set, where S1 is equal to the candidate delay length determined by the target configuration among X1 candidate delay lengths.

[0577] In one embodiment, the technical feature is that "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window," where X1 candidate configurations are used to determine X1 candidate lengths and X1 candidate delay lengths, the signaling of the cell to which the first PDCCH belongs is used to determine the first candidate length, and the first signal to which the first PDCCH belongs If the first signal is associated with a cell, the time length of the target time window is equal to the first candidate length, and the start time of the target time window is the earliest symbol of the earliest CORESET associated with the type 1 PDCCH common search space set, which is at least one symbol away from the last symbol of the PRACH opportunity occupied by the first signal; if the first signal is associated with at least one cell determined by the target configuration, the time length of the target time window is equal to the candidate length determined by the target configuration among X1 candidate lengths, and the start time of the target time window is the earliest symbol of the earliest CORESET associated with the type 1 PDCCH common search space set, which is at least S1 symbols away from the last symbol of the PRACH opportunity occupied by the first signal, where S1 means equal to the candidate delay length determined by the target configuration among X1 candidate delay lengths.

[0578] In one embodiment, the technical feature “the value of a first field is used to determine at least one of the time length of a target time window or the start time of a target time window” means that X1 candidate configurations are each used to determine X1 candidate lengths, the signaling of the cell to which the first PDCCH belongs is used to determine the first candidate length, the start time of the target time window is the earliest symbol of the earliest CORESET associated with the type 1 PDCCH common search space set, at least one symbol away from the last symbol of the PRACH opportunity occupied by the first signal, if the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values, the time length of the target time window is equal to the first candidate length, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the time length of the target time window is equal to the candidate length determined by the target configuration among the X1 candidate lengths.

[0579] In one embodiment, the technical feature "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window" means that X1 candidate configurations are each used to determine X1 candidate lengths, the signaling of the cell to which the first PDCCH belongs is used to determine the first candidate length, the start time of the target time window is the earliest symbol of the earliest CORESET associated with the type 1 PDCCH common search space set, at least one symbol away from the last symbol of the PRACH opportunity occupied by the first signal, the time length of the target time window is equal to the first candidate length if the first signal is associated with the cell to which the first PDCCH belongs, and the time length of the target time window is equal to the candidate length determined by the target configuration among the X1 candidate lengths.

[0580] In one embodiment, the technical feature "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window" means that X1 candidate configurations are each used to determine X1 candidate delay lengths, the signaling of the cell to which the first PDCCH belongs is used to determine the first candidate length, the time length of the target time window is equal to the first candidate length, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the start time of the target time window is the earliest symbol of the earliest CORESET associated with the type 1 PDCCH common search space set, at least one symbol away from the last symbol of the PRACH opportunity occupied by the first signal, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the start time of the target time window is at least S1 symbols away from the last symbol of the PRACH opportunity occupied by the first signal, type The earliest symbol of the earliest CORESET associated with the PDCCH common search space set of 1, where S1 implies that it is equal to the candidate delay length determined by the target configuration among X1 candidate delay lengths.

[0581] In one embodiment, the technical feature is that "the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window," where X1 candidate configurations are used to determine X1 candidate lengths and X1 candidate delay lengths, respectively, the signaling for the cell to which the first PDCCH belongs is used to determine the first candidate length, and if the first signal is associated with the cell to which the first PDCCH belongs, the time length of the target time window is equal to the first candidate length, and the start time of the target time window is the PRACH opportunity occupied by the first signal. The earliest symbol of the earliest CORESET associated with the type 1 PDCCH common search space set is at least one symbol away from the last symbol, and if the first signal is associated with at least one cell determined by the target configuration, the time length of the target time window is at least S1 symbols away from the last symbol of the PRACH opportunity occupied by the first signal, and S1 means that is equal to the candidate delay length determined by the target configuration among X1 candidate delay lengths.

[0582] Embodiment 11 Embodiment 11 illustrates a schematic diagram of a power ramping step according to one embodiment of the present application, as shown in Figure 11. In Figure 11, the horizontal axis represents time, the vertical axis represents power, each rectangular box represents a transmission on a random access channel, the shaded rectangular box represents a first signal, and the power ramping step is used to determine the power ramping amplitude between the two transmissions.

[0583] In Embodiment 11, the first information block in this application is used to determine the power ramping step, the first PDCCH in this application is used to determine the first count value, and the power ramping step and the first count value are used together to determine the transmission power value of the first signal in this application.

[0584] In one embodiment, by using a first PDCCH to determine a first count value, the UE can accurately set the transmission power value of the first signal and ensure the detection performance of the first signal.

[0585] In one embodiment, if the first signal is associated with at least one cell determined by the target configuration, the power ramping step and the first count value are used together to determine the transmission power value of the first signal.

[0586] In one embodiment, when the value of a first field carried by a first PDCCH is equal to one of X1 candidate values, the power ramping step and the first count value are used together to determine the transmission power value of the first signal.

[0587] In one embodiment, the unit of power ramping step is dB.

[0588] In one embodiment, the unit of power ramping steps is milliwatts (mW).

[0589] In one embodiment, the unit of power ramping step is dBm.

[0590] In one embodiment, the power ramping step is a non-negative integer.

[0591] In one embodiment, the power ramping step is 0 or greater.

[0592] In one embodiment, the power ramping step is equal to one of 0 dB, 2 dB, 4 dB, or 6 dB.

[0593] In one embodiment, the power ramping step is the power ramping coefficient.

[0594] In one embodiment, the power ramping step is the power adjustment (or modification) value when PRACH (or preamble) is retransmitted.

[0595] In one embodiment, the power ramping step is equivalent to the power ramping step of the PRACH configured for the cell to which the first PDCCH belongs.

[0596] In one embodiment, the power ramping step is equivalent to the power ramping step of a dedicated PRACH configured for the cell to which the first PDCCH belongs.

[0597] In one embodiment, the power ramping step is equivalent to the power ramping step of a cell-specific or common PRACH configured for the cell to which the first PDCCH belongs.

[0598] In one embodiment, the power ramping step is independent of the power ramping step of the PRACH configured for the cell to which the first PDCCH belongs.

[0599] In one embodiment, the power ramping steps and power ramping steps of the PRACH configured for the cell to which the first PDCCH belongs are each composed of two fields or two IEs.

[0600] In one embodiment, the power ramping step and the power ramping step of the PRACH configured for the cell to which the first PDCCH belongs are independent.

[0601] In one embodiment, the power ramping step is equal to the power ramping step of PRACH configured for the cell associated with the first signal.

[0602] In one embodiment, the power ramping step is equivalent to the power ramping step of a PRACH configured for cells other than the cell to which the first PDCCH belongs.

[0603] In one embodiment, the technical feature “a first information block is used to determine the power ramping step” includes the meaning that the first information block is used by the first node device in this application to determine the power ramping step.

[0604] In one embodiment, the technical feature "a first information block is used to determine the power ramping step" includes the meaning that all or part of the first information block is used to explicitly or implicitly indicate the power ramping step.

[0605] In one embodiment, the technical feature "a first information block is used to determine the power ramping step" means that the first information block and at least one parameter other than the parameters contained in the first information block are used together to determine the power ramping step.

[0606] In one embodiment, the technical feature "a first information block is used to determine a power ramping step" means that all or part of the first information block is used to explicitly or implicitly indicate a candidate power ramping step, and the power ramping step is equal to the product of the candidate power ramping step and the diffusion rate, where the diffusion rate is predefined or configured.

[0607] In one embodiment, the first count value is a non-negative integer.

[0608] In one embodiment, the first count value is a positive integer.

[0609] In one embodiment, the first count value does not exceed the maximum number of PRACH (or preamble) retransmissions for a single cell.

[0610] In one embodiment, the maximum value of the first count value does not exceed 3.

[0611] In one embodiment, the maximum value of the first count value does not exceed 7.

[0612] In one embodiment, the maximum value of the first count value does not exceed 15.

[0613] In one embodiment, the first count value is used for the retransmission count of PRACH (or preamble).

[0614] In one embodiment, the first count value is used to determine the retransmission sequence number of PRACH (or preamble).

[0615] In one embodiment, the first count value is used for the retransmission count of PRACH (or preamble) for a single cell.

[0616] In one embodiment, the first count value is used for the retransmission count of the PRACH (or preamble) for the cell associated with the first signal.

[0617] In one embodiment, the first count value is used for the retransmission count of PRACH (or preamble) for a single cell in LTM.

[0618] In one embodiment, the technical feature “a first PDCCH is used to determine a first count value” includes the meaning that the first PDCCH is used by the first node device in this application to determine a first count value.

[0619] In one embodiment, the technical feature “a first PDCCH is used to determine a first count value” includes the meaning that all or part of the DCI carried by the first PDCCH is used to explicitly or implicitly indicate a first count value.

[0620] In one embodiment, the technical feature “a first PDCCH is used to determine a first count value” includes the meaning that at least one field in the DCI carried by the first PDCCH is used to explicitly or implicitly indicate a first count value.

[0621] In one embodiment, "the power ramping step and the first count value are the first count value The technical feature “used together to determine the transmission power value of the first signal” means that the power ramping step and the first count value are used together by the first node device of this application to determine the transmission power value of the first signal.

[0622] In one embodiment, the technical feature "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" includes the meaning that the power ramping step and the first count value are used together to calculate the transmission power value of the first signal.

[0623] In one embodiment, the technical feature "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" includes the meaning that the product of the power ramping step and the first count value is used to calculate the transmission power value of the first signal.

[0624] In one embodiment, the technical feature "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" includes the meaning that the product of the power ramping step and the difference obtained by subtracting 1 from the first count value is used to calculate the transmission power value of the first signal.

[0625] In one embodiment, the technical feature "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" means that the transmission power value of the first signal is equal to the smaller of the first upper limit and the first power value, where the first upper limit is the maximum output power to which the first node device is configured, and the first power value is linearly related to the product of the power ramping step and the difference between the first count value and 1.

[0626] In one embodiment, the technical feature "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" means that the transmission power value of the first signal is equal to the smaller of the first upper limit and the first power value, where the first upper limit is the maximum output power configured by the first node device, and the first power value is linearly related to the product of the power ramping step and the first count value.

[0627] In one embodiment, the unit of the transmission power value of the first signal is dBm.

[0628] In one embodiment, the unit of the transmission power value of the first signal is mW.

[0629] In one embodiment, the transmission power value of the first signal is less than or equal to the maximum output power value configured for the first node device in the cell associated with the first signal.

[0630] In one embodiment, the transmission power value of the first signal is less than or equal to the maximum output power value configured for the first node device in the cell to which the first PDCCH belongs.

[0631] In one embodiment, the transmission power value of the first signal is less than or equal to a value less than the maximum output power value configured for the first node device in the cell associated with the first signal, or the maximum output power value configured for the first node device in the cell to which the first PDCCH belongs.

[0632] In one embodiment, the technical feature "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" satisfies the following equation: It is implemented by adding. P PRACH,b,f,c (i) = min{P CMAX,f,c (i), P PRACH,target,f,c +PL b,f,c [dBm] In the formula, P PRACH,b,f,c (i) represents the transmission power value of the first signal, P CMAX,f,c (i) represents the maximum output power value configured for the first node device, PL b,f,c represents the path loss in the uplink BWPb on the carrier f of cell c associated with the first signal, and P PRACH,target,f,c This is equal to the sum of the product of the configured preamble receive target power, the power ramping step, and the difference between the first count values, minus 1.

[0633] In one embodiment, the technical feature that "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" is implemented by satisfying the following equation. P PRACH,b,f,c (i) = min{P CMAX,f,c (i), P PRACH,target,f,c +PL b,f,c [dBm] In the formula, P PRACH,b,f,c (i) represents the transmission power value of the first signal, P CMAX,f,c (i) represents the maximum output power value configured for the first node device, PL b,f,crepresents the path loss in the uplink BWPb on the carrier f of cell c associated with the first signal, and P PRACH,target,f,c This is equal to the sum of the product of the configured preamble receive target power, the power ramping step, and the first count value.

[0634] In one embodiment, the technical feature that "the power ramping step and the first count value are used together to determine the transmission power value of the first signal" is implemented by satisfying the following equation. P PRACH,b,f,c (i) = min{P CMAX,f,c (i), P PRACH,target,f,c +PL b,f,c [dBm] In the formula, P PRACH,b,f,c (i) represents the transmission power value of the first signal, P CMAX,f,c (i) represents the maximum output power value configured for the first node device, PL b,f,c represents the path loss in the uplink BWPb on the carrier f of cell c associated with the first signal, and P PRACH,target,f,c This is equal to the sum of the product of the configured preamble receive target power, the power ramping step, the difference obtained by subtracting 1 from the first count value, and one configured power offset value.

[0635] Embodiment 12 Embodiment 12 illustrates a structural block diagram of a processing unit in a first node device according to one embodiment, as shown in Figure 12. In Figure 12, the processing unit 1200 of the first node device comprises a first receiver 1201 and a first transmitter 1202. The first receiver 1201 comprises a transmission / receiving device 456 (equipped with an antenna 460), a receiving processor 452, and a controller / processor 490 as shown in Figure 4 of this application, and the first transmitter 1202 comprises a transmission / receiving device 456 (equipped with an antenna 460), a transmission processor 455, and a controller / processor 490 as shown in Figure 4 of this application.

[0636] In Embodiment 12, the first receiver 1201 receives a first information block used to determine X1 candidate configurations, where X1 is a positive integer, the first receiver 1201 receives a first PDCCH carrying a first field, the first transmitter 1202 transmits a first signal, the first PDCCH is used to trigger the transmission of the first signal, the first signal carries a random access preamble sequence, any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values ​​carried by the first PDCCH If the value of field 1 is equal to a value other than one of the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs. If the value of field 1 carried by the first PDCCH is equal to one of the X1 candidate values, the value of field 1 carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0637] In one embodiment, the first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling value of the logarithm of the reference value of base 2, and the reference value is equal to X1+1.

[0638] In one embodiment, X1 candidate configurations are each used to constitute X1 identifiers, the X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of the X1 identifiers, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of a first field carried by a first PDCCH.

[0639] In one embodiment, any one of X1 candidate values ​​belongs to a first set of candidate values, the value of a first field carried by a first PDCCH belongs to a first set of candidate values ​​which includes multiple candidate values, and the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value which is one of the candidate values ​​in the first set of candidate values.

[0640] In one embodiment, a first transmitter 1202 transmits a second information block, the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that a first PDCCH carries a first field, the time interval length between the first PDCCH and a first signal in the time domain is greater than or equal to a first threshold, and at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold.

[0641] In one embodiment, a first receiver 1201 monitors a second PDCCH in a target time window, the second PDCCH is used to respond to a first signal, and the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0642] In one embodiment, a first information block is used to determine the power ramping step, a first PDCCH is used to determine the first count value, and the power ramping step and the first count value are used together to determine the transmission power value of the first signal.

[0643] Embodiment 13 Embodiment 13 illustrates a structural block diagram of a processing unit in a second node device according to one embodiment, as shown in Figure 13. In Figure 13, the processing unit 1300 of the second node device comprises a second transmitter 1301 and a second receiver 1302. The second transmitter 1301 comprises a transmission / receiving device 416 (equipped with an antenna 460), a transmission processor 415, and a controller / processor 440 as shown in Figure 4 of this application, and the second receiver 1302 comprises a transmission / receiving device 416 (equipped with an antenna 460), a receiving processor 412, and a controller / processor 440 as shown in Figure 4 of this application.

[0644] In Embodiment 13, the second transmitter 1301 is used to determine X1 candidate configurations. The first information block is transmitted, where X1 is a positive integer, the second transmitter 1301 transmits the first PDCCH, the second receiver 1302 receives the first signal, the first PDCCH is used to trigger the transmission of the first signal, the first signal carries a random access preamble sequence, any one of the X1 candidate configurations is used to determine at least one cell, each of the X1 candidate configurations corresponds to X1 candidate values. If the value of the first field carried by the first PDCCH is equal to a value other than X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs. If the value of the first field carried by the first PDCCH is equal to one of X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from X1 candidate configurations, and the first signal is associated with at least one cell determined by the target configuration.

[0645] In one embodiment, the first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling value of the logarithm of the reference value of base 2, and the reference value is equal to X1+1.

[0646] In one embodiment, X1 candidate configurations are each used to constitute X1 identifiers, the X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of the X1 identifiers, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of a first field carried by a first PDCCH.

[0647] In one embodiment, any one of X1 candidate values ​​belongs to a first set of candidate values, the value of a first field carried by a first PDCCH belongs to a first set of candidate values ​​which includes multiple candidate values, and the association of a first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value which is one of the candidate values ​​in the first set of candidate values.

[0648] In one embodiment, a second receiver 1302 receives a second information block, the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that the first PDCCH carries a first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, and at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs or the second information block is used to determine the first threshold.

[0649] In one embodiment, a second transmitter 1301 transmits a second PDCCH within a target time window, the second PDCCH is used to respond to a first signal, and the value of the first field is used to determine at least one of the time length of the target time window or the start time of the target time window.

[0650] In one embodiment, a first information block is used to determine the power ramping step, a first PDCCH is used to determine the first count value, and the power ramping step and the first count value are used together to determine the transmission power value of the first signal.

[0651] Those skilled in the art will understand that all or some of the steps in the above method can be implemented by instructing the relevant hardware by a program, and that the program can be stored on a computer-readable storage medium, such as read-only memory, a hard disk, or an optical disk. Optionally, all or some of the steps in the above embodiments may be one or more It may be implemented by an integrated circuit. Accordingly, each module unit in the above embodiments may be implemented in hardware form or in the form of a software function module, and this application is not limited to any particular combination of software and hardware. The first node device, or second node device, or UE, or terminal in this application includes, but is not limited to, mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle communication devices, aircraft, airplanes, drones, remotely controlled aircraft, and other wireless communication devices. The base station device, or base station, or network-side device in this application includes, but is not limited to, macrocellular base stations, microcellular base stations, femtocells, relay base stations, eNBs, gNBs, transceiver points (TRPs), relay satellites, satellite base stations, air base stations, and other wireless communication devices.

[0652] 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 descriptive and not restrictive. The scope of the present invention is indicated not by the above specification but by the appended claims, and all modifications within the meaning and scope equivalent to the claims are deemed to be included.

Claims

1. A first node device for wireless communication, A first receiver that receives a first information block used to determine X1 candidate configurations, where X1 is a positive integer, The first receiver receives a first PDCCH carrying a first field, the first PDCCH carries all or part of the fields in DCI format 1_0, and the values ​​of the frequency domain resource allocation fields included in the DCI carried by the first PDCCH are all equal to "1", the first receiver A first transmitter that transmits a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence, comprising: A first node device wherein any one of the X1 candidate configurations is used to determine at least one cell, any cell determined by any one of the X1 candidate configurations is a candidate cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, the first signal is associated with at least one cell determined by the target configuration, and the first signal is used to obtain a timing advance for the at least one cell determined for the target configuration.

2. The first node device according to claim 1, wherein the first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling value of the logarithm of the reference value of base 2, and the reference value is equal to X1 + 1.

3. The first numerical value is 4 or less, and the first numerical value is the first numerical value = [Math 1] A first node device according to claim 2, satisfying the condition.

4. The first node device according to any one of claims 1 to 3, wherein each of the X1 candidate configurations is used to constitute an X1 identifier, the X1 candidate configurations correspond one-to-one with the X1 candidate value in the order of the X1 identifier, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

5. The first node device according to claim 4, wherein the X1 candidate configurations correspond one-to-one with the X1 candidate values ​​in ascending order of the X1 identifiers, and the order of the target configurations among the X1 candidate configurations is the same as the order of the values ​​of the first field carried by the first PDCCH among the X1 candidate values.

6. Any one of the X1 candidate values ​​belongs to the first candidate value set, the value of the first field carried by the first PDCCH belongs to the first candidate value set, the first candidate value set includes a plurality of candidate values, and the first signal is the first PD The first node device according to any one of claims 1 to 5, wherein the association of the CCH with the cell to which it belongs depends on the value of the first field carried by the first PDCCH being equal to a target value, the target value being one candidate value in the first set of candidate values.

7. The first node device according to claim 6, wherein if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the first signal is associated with at least one cell determined by the target configuration, and the target value is equal to 0.

8. The first node device according to any one of claims 1 to 7, wherein the first transmitter transmits a second information block, the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that the first PDCCH carries the first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the last symbol of reception of the first PDCCH and the earliest symbol of transmission of the first signal, the unit of the first threshold is milliseconds, and at least one of the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or the second information block, is used to determine the first threshold.

9. The first node device according to claim 8, wherein the first threshold is linearly correlated with a target parameter value, and when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a first relationship, the target parameter value is equal to a first candidate value, and when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a second relationship, the target parameter value is equal to a second candidate value, the first candidate value and the second candidate value are not equal, the first candidate value is predefined, and the second candidate value is predefined, configurable, or related to the ability of the transmitter of the first signal.

10. The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is determined by the parameter △ used when the first threshold is calculated. ＢＷＰＳｗｉｔｃｈｉｎｇ The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, used to determine the value of the parameter △ used when the first threshold is calculated, is used to determine the value of the parameter △. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ，２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ The first node device according to claim 8 or 9, wherein the parameter value is other than the value of the parameter.

11. The second information block is used to determine the value of parameter Δ ＬＴＭ which is used when the first threshold is calculated, and the parameter Δ ＬＴＭ is a parameter other than parameter N Ｔ，２ , parameter Δ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter Δ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ The first node device according to claim 8 or 9, which is a value of a parameter other than those described above.

12. Any one of the X1 candidate configurations includes at least a physical cell identifier, the upper limit of X1 is equal to 8, and the target configuration is one of the X1 candidate configurations. A first node device according to any one of claims 1 to 11, which is a candidate configuration corresponding to the value of the first field conveyed by the first PDCCH.

13. The first node device according to any one of claims 1 to 12, wherein the first information block is used to determine a power ramping step, the first PDCCH is used to determine a first count value, the power ramping step and the first count value are used together to determine a transmission power value of the first signal, the power ramping step is equal to one of 0 dB, 2 dB, 4 dB, or 6 dB.

14. The first node device according to claim 13, wherein the power ramping step is equal to the power ramping step of a PRACH configured for a cell other than the cell to which the first PDCCH belongs, and the transmission power value of the first signal is less than or equal to the maximum output power value configured for the transmitter of the first signal in the cell associated with the first signal.

15. The first node device according to claim 13 or 14, wherein the transmission power value of the first signal is equal to the smaller of the first upper limit and the first power value, the first upper limit being the maximum output power configured for the transmitter of the first signal, and the first power value being linearly related to the product of the power ramping step and the difference obtained by subtracting 1 from the first count value.

16. The first node device according to any one of claims 1 to 15, wherein the first information block includes IE "RRCReconfiguration", the first information block includes all or part of IE "LTM_Config-r18", the first information block includes all or part of IE "RACH-ConfigGeneric", the first information block includes the field "powerRampingStep", the first information block includes X1 sub-information blocks, each of which is used to determine the X1 candidate configurations.

17. The first node device according to any one of claims 1 to 16, wherein the first signal is PRACH, the first signal is used for random access procedures and LTM procedures, and the cell associated with the first signal is a cell in which the corresponding index value or identifier value and the time-frequency resources and / or sequences occupied by the first signal are all configured or indicated in the first PDCCH.

18. The first node device according to any one of claims 1 to 17, wherein one cell determined by one of the X1 candidate configurations is a serving cell of the first node device, one cell determined by one of the X1 candidate configurations is a non-serving cell of the first node device, the X1 candidate configurations include one reference candidate configuration, and at least one of the X1 candidate configurations other than the reference candidate configuration includes a difference value with respect to the reference candidate configuration.

19. The first node device according to any one of claims 1 to 18, wherein the first information block is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is to be used as the first field, and if the first information block is not provided, the number of bits contained in the first field carried by the first PDCCH is equal to 0.

20. The first signal is associated with the cell to which the first PDCCH belongs. A first node device according to any one of claims 1 to 19, comprising the configuration information of the first signal and the index value associated with the cell to which the first PDCCH belongs being configured or indicated in the same PDCCH order, wherein the first signal is associated with the at least one cell determined by the target configuration, wherein the configuration information of the first signal and the index (or identifier) ​​of the at least one cell determined by the target configuration are configured in the same IE or field.

21. A second node device for wireless communication, A second transmitter that transmits a first information block used to determine X1 candidate configurations, where X1 is a positive integer. The second transmitter receives a first PDCCH carrying a first field, the first PDCCH carrying all or part of the fields in DCI format 1_0, and the values ​​of the frequency domain resource allocation fields included in the DCI carried by the first PDCCH are all equal to "1", the second transmitter and A second receiver that receives a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence, comprising: A second node device wherein any one of the X1 candidate configurations is used to determine at least one cell, any cell determined by any one of the X1 candidate configurations is a candidate cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, the first signal is associated with at least one cell determined by the target configuration, and the first signal is used to obtain a timing advance for the at least one cell determined for the target configuration.

22. The second node device according to claim 21, wherein the first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling value of the logarithm of the reference value of base 2, and the reference value is equal to X1 + 1.

23. The first numerical value is 4 or less, and the first numerical value is the first numerical value = [Math 2] A second node device according to claim 22, satisfying the condition.

24. The second node device according to any one of claims 21 to 23, wherein each of the X1 candidate configurations is used to constitute an X1 identifier, the X1 candidate configurations correspond one-to-one with the X1 candidate value in the order of the X1 identifier, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

25. The X1 candidate configurations correspond one-to-one with the X1 candidate values ​​in ascending order of the X1 identifiers, and the order of the target configurations within the X1 candidate configurations is the same as the X1 candidate The second node device according to claim 24, wherein the order of the values ​​in the first field carried by the first PDCCH is the same as the order of the values ​​in the values.

26. A second node device according to any one of claims 21 to 25, wherein one of the X1 candidate values ​​belongs to a first set of candidate values, the value of the first field carried by the first PDCCH belongs to the first set of candidate values, the first set of candidate values ​​comprises a plurality of candidate values, and the association of the first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value, the target value being one of the candidate values ​​in the first set of candidate values.

27. The second node device according to claim 26, wherein if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the first signal is associated with at least one cell determined by the target configuration, and the target value is equal to 0.

28. The second node device according to any one of claims 21 to 27, wherein the second receiver receives a second information block, the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that the first PDCCH carries the first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the last symbol of reception of the first PDCCH and the earliest symbol of transmission of the first signal, the unit of the first threshold is milliseconds, and at least one of the relationships between the cell associated with the first signal and the cell to which the first PDCCH belongs, or the second information block, is used to determine the first threshold.

29. The second node device according to claim 28, wherein the first threshold is linearly correlated with a target parameter value, and when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a first relationship, the target parameter value is equal to a first candidate value, and when the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a second relationship, the target parameter value is equal to a second candidate value, the first candidate value and the second candidate value are not equal, the first candidate value is predefined, and the second candidate value is predefined, configurable, or related to the ability of the transmitter of the first signal.

30. The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is determined by the parameter △ used when the first threshold is calculated. ＢＷＰＳｗｉｔｃｈｉｎｇ The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, used to determine the value of the parameter △ used when the first threshold is calculated, is used to determine the value of the parameter △. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ，２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ The second node device according to claim 28 or 29, wherein the parameter value is other than the value of the parameter.

31. The second information block contains the parameter △ used when the first threshold is calculated. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ， ２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ The second node device according to claim 28 or 29, wherein the parameter value is other than the value of the parameter.

32. The second node device according to any one of claims 21 to 31, wherein any one of the X1 candidate configurations includes at least a physical cell identifier, the upper limit of X1 is equal to 8, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

33. The second node device according to any one of claims 21 to 32, wherein the first information block is used to determine a power ramping step, the first PDCCH is used to determine a first count value, the power ramping step and the first count value are used together to determine a transmission power value of the first signal, the power ramping step is equal to one of 0 dB, 2 dB, 4 dB, or 6 dB.

34. The second node device according to claim 33, wherein the power ramping step is equal to the power ramping step of a PRACH configured for a cell other than the cell to which the first PDCCH belongs, and the transmission power value of the first signal is less than or equal to the maximum output power value configured for the transmitter of the first signal in the cell associated with the first signal.

35. The second node device according to claim 33 or 34, wherein the transmission power value of the first signal is equal to the smaller of the first upper limit and the first power value, the first upper limit being the maximum output power configured for the transmitter of the first signal, and the first power value being linearly related to the product of the power ramping step and the difference obtained by subtracting 1 from the first count value.

36. The second node device according to any one of claims 21 to 35, wherein the first information block includes IE "RRCReconfiguration", the first information block includes all or part of IE "LTM_Config-r18", the first information block includes all or part of IE "RACH-ConfigGeneric", the first information block includes the field "powerRampingStep", the first information block includes X1 sub-information blocks, each of which is used to determine the X1 candidate configuration.

37. The second node device according to any one of claims 21 to 36, wherein the first signal is PRACH, the first signal is used for random access procedures and LTM procedures, and the cell associated with the first signal is a cell in which the corresponding index value or identifier value and the time-frequency resources and / or sequences occupied by the first signal are all configured or indicated in the first PDCCH.

38. A second node device according to any one of claims 21 to 37, wherein one cell determined by one of the X1 candidate configurations is a serving cell of the first node device, and one cell determined by one of the X1 candidate configurations is a non-serving cell of the first node device, and the X1 candidate configurations include one reference candidate configuration, and at least one of the X1 candidate configurations other than the reference candidate configuration includes a difference value with respect to the reference candidate configuration.

39. The first information block is transported by the first PDCCH within the DCI A second node device according to any one of claims 21 to 38, wherein at least one reserved bit is used to determine that the first field is to be used, and if the first information block is not provided, the number of bits contained in the first field carried by the first PDCCH is equal to 0.

40. The second node device according to any one of claims 21 to 39, wherein the association of the first signal with the cell to which the first PDCCH belongs includes the time-frequency resources and / or sequences occupied by the first signal and the index value associated with the cell to which the first PDCCH belongs being configured or indicated in the same PDCCH order, and the association of the first signal with the at least one cell determined by the target configuration includes the configuration information of the first signal and the index (or identifier) ​​of the at least one cell determined by the target configuration being configured in the same IE or field.

41. A method used in a first node for wireless communication, Receiving a first information block used to determine X1 candidate configurations, where X1 is a positive integer, Receiving a first PDCCH that carries a first field, wherein the first PDCCH carries all or part of the fields in DCI format 1_0, and the values ​​of the frequency domain resource allocation fields included in the DCI carried by the first PDCCH are all equal to "1". The transmission of a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence. A method used in a first node, wherein any one of the X1 candidate configurations is used to determine at least one cell, any cell determined by any one of the X1 candidate configurations is a candidate cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, the first signal is associated with at least one cell determined by the target configuration, and the first signal is used to obtain a timing advance for the at least one cell determined for the target configuration.

42. A method used in a first node according to claim 41, wherein the first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, the first numerical value is equal to the ceiling of the logarithm of a base-2 reference value, and the reference value is equal to X1 + 1.

43. The first numerical value is 4 or less, and the first numerical value is the first numerical value = [Math 3] A method used in the first node according to claim 42, which satisfies the condition.

44. Each of the X1 candidate configurations is used to constitute an X1 identifier, A method used in a first node according to any one of claims 41 to 43, wherein X1 candidate configurations correspond one-to-one with X1 candidate values ​​in the order of the X1 identifiers, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

45. A method used in a first node according to claim 44, wherein the X1 candidate configurations correspond one-to-one with the X1 candidate values ​​in ascending order of the X1 identifiers, and the order of the target configurations among the X1 candidate configurations is the same as the order of the values ​​of the first field carried by the first PDCCH among the X1 candidate values.

46. A method used in a first node according to any one of claims 41 to 45, wherein one of the X1 candidate values ​​belongs to a first set of candidate values, the value of the first field carried by the first PDCCH belongs to the first set of candidate values, the first set of candidate values ​​comprises a plurality of candidate values, and the association of the first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value, the target value being one of the candidate values ​​in the first set of candidate values.

47. A method used in a first node according to claim 46, wherein if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the first signal is associated with at least one cell determined by the target configuration, and the target value is equal to 0.

48. This includes transmitting a second information block, A method used in a first node according to any one of claims 41 to 47, wherein the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that the first PDCCH carries the first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the last symbol of reception of the first PDCCH and the earliest symbol of transmission of the first signal, the unit of the first threshold is milliseconds, and the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or at least one of the second information blocks is used to determine the first threshold.

49. A method used in a first node according to claim 48, wherein the first threshold is linearly correlated with a target parameter value, and if the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a first relationship, the target parameter value is equal to a first candidate value, and if the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is a second relationship, the target parameter value is equal to a second candidate value, the first candidate value and the second candidate value are not equal, the first candidate value is predefined, and the second candidate value is predefined, configurable, or related to the ability of the sender of the first signal.

50. The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is determined by the parameter △ used when the first threshold is calculated. ＢＷＰＳ ｗｉｔｃｈｉｎｇ The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, used to determine the value of the parameter △ used when the first threshold is calculated, is used to determine the value of the parameter △. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ，２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ A method used in the first node according to claim 48 or 49, wherein the value of the parameter is other than the value of the parameter.

51. The second information block contains the parameter △ used when the first threshold is calculated. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ，２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ A method used in the first node according to claim 48 or 49, wherein the value of the parameter is other than the value of the parameter.

52. A method used in a first node according to any one of claims 41 to 51, wherein any one of the X1 candidate configurations includes at least a physical cell identifier, the upper limit of X1 is equal to 8, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

53. A method used in a first node according to any one of claims 41 to 52, wherein the first information block is used to determine a power ramping step, the first PDCCH is used to determine a first count value, the power ramping step and the first count value are used together to determine a transmission power value of the first signal, the power ramping step is equal to one of 0 dB, 2 dB, 4 dB, or 6 dB.

54. The method used in a first node according to claim 53, wherein the power ramping step is equivalent to the power ramping step of a PRACH configured for a cell other than the cell to which the first PDCCH belongs, and the transmission power value of the first signal is less than or equal to the maximum output power value configured for the transmitter of the first signal in the cell associated with the first signal.

55. The method used in a first node according to claim 53 or 54, wherein the transmission power value of the first signal is equal to the smaller of a first upper limit and a first power value, the first upper limit being the maximum output power configured for the transmitter of the first signal, and the first power value being linearly related to the product of the power ramping step and the difference obtained by subtracting 1 from the first count value.

56. A method used in a first node according to any one of claims 41 to 55, wherein the first information block includes IE "RRCReconfiguration", the first information block includes all or part of IE "LTM_Config-r18", the first information block includes all or part of IE "RACH-ConfigGeneric", the first information block includes the field "powerRampingStep", the first information block includes X1 sub-information blocks, each of the X1 sub-information blocks used to determine the X1 candidate configurations.

57. The first signal is PRACH, and the first signal is used in random access procedures and LTM procedures, and the cell associated with the first signal is a cell in which the corresponding index value or identifier value and the time-frequency resources and / or sequences occupied by the first signal are all configured or indicated in the first PDCCH. A method used in the first node according to any one of claims 41 to 56.

58. A method used in a first node according to any one of claims 41 to 57, wherein one cell determined by one of the X1 candidate configurations is a serving cell of the first node device, one cell determined by one of the X1 candidate configurations is a non-serving cell of the first node device, the X1 candidate configurations include one reference candidate configuration, and at least one of the X1 candidate configurations other than the reference candidate configuration includes a difference value with respect to the reference candidate configuration.

59. A method used in a first node according to any one of claims 41 to 58, wherein the first information block is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is to be used as the first field, and if the first information block is not provided, the number of bits contained in the first field carried by the first PDCCH is equal to 0.

60. A method used in a first node according to any one of claims 41 to 59, wherein the association of the first signal with the cell to which the first PDCCH belongs includes the time-frequency resources and / or sequences occupied by the first signal and the index value associated with the cell to which the first PDCCH belongs being configured or indicated in the same PDCCH order, and the association of the first signal with the at least one cell determined by the target configuration includes the configuration information of the first signal and the index (or identifier) ​​of the at least one cell determined by the target configuration being configured in the same IE or field.

61. A method used in a second node for wireless communication, Transmitting a first information block used to determine X1 candidate configurations, where X1 is a positive integer, Transmitting a first PDCCH that carries a first field, wherein the first PDCCH carries all or part of the fields in DCI format 1_0, and the values ​​of all frequency domain resource allocation fields included in the DCI carried by the first PDCCH are equal to "1". Receiving a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal carries a random access preamble sequence, A method used in a second node, wherein any one of the X1 candidate configurations is used to determine at least one cell, any cell determined by any one of the X1 candidate configurations is a candidate cell, each of the X1 candidate configurations corresponds to X1 candidate values, and if the value of the first field carried by the first PDCCH is equal to a value other than the X1 candidate values, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the value of the first field carried by the first PDCCH is used to determine a target configuration from the X1 candidate configurations, the first signal is associated with at least one cell determined by the target configuration, and the first signal is used to obtain a timing advance for the at least one cell determined for the target configuration.

62. The first numerical value is equal to the number of bits contained in the first field carried by the first PDCCH, and the first numerical value is equal to the ceiling value of the base 2 logarithm of the reference value. The method used in the second node according to claim 61, wherein the reference value is equal to X1 + 1.

63. The first numerical value is 4 or less, and the first numerical value is the first numerical value = [Math 4] A method used in the second node according to claim 62, which satisfies the condition.

64. A method used in a second node according to any one of claims 61 to 63, wherein each of the X1 candidate configurations is used to constitute an X1 identifier, the X1 candidate configurations correspond one-to-one with the X1 candidate value in the order of the X1 identifier, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

65. A method used in a second node according to claim 64, wherein the X1 candidate configurations correspond one-to-one with the X1 candidate values ​​in ascending order of the X1 identifiers, and the order of the target configurations among the X1 candidate configurations is the same as the order of the values ​​of the first field carried by the first PDCCH among the X1 candidate values.

66. A method used in a second node according to any one of claims 61 to 65, wherein one of the X1 candidate values ​​belongs to a first set of candidate values, the value of the first field carried by the first PDCCH belongs to the first set of candidate values, the first set of candidate values ​​comprises a plurality of candidate values, and the association of the first signal with the cell to which the first PDCCH belongs depends on the value of the first field carried by the first PDCCH being equal to a target value, the target value being one of the candidate values ​​in the first set of candidate values.

67. A method used in a second node according to claim 66, wherein if the value of the first field carried by the first PDCCH is equal to the target value, the first signal is associated with the cell to which the first PDCCH belongs, and if the value of the first field carried by the first PDCCH is equal to one of the X1 candidate values, the first signal is associated with at least one cell determined by the target configuration, and the target value is equal to 0.

68. This includes receiving a second information block, A method used in a second node according to any one of claims 61 to 67, wherein the second information block is used to indicate at least one capability parameter of the transmitter of the second information block, the second information block is used to determine that the first PDCCH carries the first field, the time interval length between the first PDCCH and the first signal in the time domain is greater than or equal to a first threshold, the time interval length between the first PDCCH and the first signal in the time domain is the time interval length between the last symbol of reception of the first PDCCH and the earliest symbol of transmission of the first signal, the unit of the first threshold is milliseconds, and the relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, or at least one of the second information blocks is used to determine the first threshold.

69. The first threshold is linearly correlated with the target parameter value and associated with the first signal. The method used in a second node according to claim 68, wherein if the relationship between the cell to which the signal is associated and the cell to which the first PDCCH belongs is a first relationship, the target parameter value is equal to a first candidate value, and if the relationship between the cell to which the signal is associated and the cell to which the first PDCCH belongs is a second relationship, the target parameter value is equal to a second candidate value, the first candidate value and the second candidate value are not equal, the first candidate value is predefined, and the second candidate value is predefined or configurable or related to the ability of the sender of the first signal.

70. The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs is determined by the parameter △ used when the first threshold is calculated. ＢＷＰＳｗｉｔｃｈｉｎｇ The relationship between the cell associated with the first signal and the cell to which the first PDCCH belongs, used to determine the value of the parameter △ used when the first threshold is calculated, is used to determine the value of the parameter △. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ，２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ A method used in the second node according to claim 68 or 69, wherein the parameter value is other than the value of the parameter.

71. The second information block contains the parameter △ used when the first threshold is calculated. ＬＴＭ Used to determine the value of the parameter △ ＬＴＭ The parameter N Ｔ，２ , parameter △ ＢＷＰＳｗｉｔｃｈｉｎｇ , parameter △ Ｄｅｌａｙ , or parameter T ｓｗｉｔｃｈ A method used in the second node according to claim 68 or 69, wherein the parameter value is other than the value of the parameter.

72. A method used in a second node according to any one of claims 61 to 71, wherein any one of the X1 candidate configurations includes at least a physical cell identifier, the upper limit of X1 is equal to 8, and the target configuration is a candidate configuration among the X1 candidate configurations that corresponds to the value of the first field carried by the first PDCCH.

73. A method used in a second node according to any one of claims 61 to 72, wherein the first information block is used to determine a power ramping step, the first PDCCH is used to determine a first count value, the power ramping step and the first count value are used together to determine a transmission power value of the first signal, the power ramping step is equal to one of 0 dB, 2 dB, 4 dB, or 6 dB.

74. The method used in a second node according to claim 73, wherein the power ramping step is equivalent to the power ramping step of a PRACH configured for a cell other than the cell to which the first PDCCH belongs, and the transmission power value of the first signal is less than or equal to the maximum output power value configured for the transmitter of the first signal in the cell associated with the first signal.

75. The method used in a second node according to claim 73 or 74, wherein the transmission power value of the first signal is equal to the smaller of a first upper limit and a first power value, the first upper limit being the maximum output power configured for the transmitter of the first signal, and the first power value being linearly related to the product of the power ramping step and the difference obtained by subtracting 1 from the first count value.

76. The first information block includes IE "RRCReconfiguration", and the first information block includes all or part of IE "LTM_Config-r18". A method used in a second node according to any one of claims 61 to 75, wherein the first information block includes all or part of the IE "RACH-ConfigGeneric", the first information block includes the field "powerRampingStep", the first information block includes X1 sub-information blocks, each of which is used to determine the X1 candidate configuration.

77. A method used in a second node according to any one of claims 61 to 76, wherein the first signal is PRACH, the first signal is used for random access procedures and LTM procedures, and the cell associated with the first signal is a cell in which the corresponding index value or identifier value and the time-frequency resources and / or sequences occupied by the first signal are all configured or indicated in the first PDCCH.

78. A method used in a second node according to any one of claims 61 to 77, wherein one cell determined by one of the X1 candidate configurations is a serving cell of a first node device, one cell determined by one of the X1 candidate configurations is a non-serving cell of the first node device, the X1 candidate configurations include one reference candidate configuration, and at least one of the X1 candidate configurations other than the reference candidate configuration includes a difference value with respect to the reference candidate configuration.

79. A method used in a second node according to any one of claims 61 to 78, wherein the first information block is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is to be used as the first field, and if the first information block is not provided, the number of bits contained in the first field carried by the first PDCCH is equal to 0.

80. A method used in a second node according to any one of claims 61 to 79, wherein the association of the first signal with the cell to which the first PDCCH belongs includes the time-frequency resources and / or sequences occupied by the first signal and the index value associated with the cell to which the first PDCCH belongs being configured or indicated in the same PDCCH order, and the association of the first signal with the at least one cell determined by the target configuration includes the configuration information of the first signal and the index (or identifier) ​​of the at least one cell determined by the target configuration being configured in the same IE or field.

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