A method and device for use in wireless communication

Abstract

The present application discloses a method and device for wireless communication, including receiving a first measurement configuration, where the first measurement configuration includes a first area configuration; in a first state, performing a first set of operations; determining whether to record measurement results according to the first area configuration based on the first state; where the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, and the first set of states includes at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; by receiving the first measurement configuration, the present application can contribute to network optimization.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and particularly to a method and apparatus for reducing service interruption, improving service continuity, and optimizing network measurement in sidelink relay communication. Background Art

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios pose different performance requirements on the system. In order to meet the different performance requirements of various application scenarios, it was decided at the 72nd plenary session of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) to conduct research on the new air interface technology (NR, New Radio) (or Fifth Generation, 5G). At the 75th plenary session of 3GPP RAN, the WI (Work Item) of NR was adopted, and the standardization work of NR began.

[0003] In communication, whether it is LTE (Long Term Evolution) or 5G NR, it involves the accurate reception of reliable information, optimized energy efficiency ratio, determination of information validity, flexible resource allocation, scalable system architecture, efficient non-access stratum information processing, low service interruption and disconnection rates, support for low power consumption, which is of great significance for the normal communication between base stations and user equipment, for the reasonable scheduling of resources, and for the balance of system load. It can be said to be the cornerstone of high throughput, meeting the communication needs of various services, improving spectrum utilization, and improving service quality. It is indispensable for eMBB (enhanced Mobile BroadBand), URLLC (Ultra Reliable Low Latency Communication), or eMTC (enhanced Machine Type Communication). At the same time, in the IIoT (Industrial Internet of Things in the industrial field), in V2X (Vehicular to X), in device-to-device communication, in communication in unlicensed spectrum, in user communication quality monitoring, in network planning and optimization, in NTN (Non Territerial Network), in TN (Territerial Network), in dual connectivity systems, in wireless resource management and multi-antenna codebook selection, in signaling design, neighbor cell management, service management, and in beamforming, there are extensive demands. The information sending methods are divided into broadcast and unicast, and both sending methods are essential for the 5G system because they are very helpful for meeting the above demands. The way for the UE to connect to the network can be direct connection or through relay connection.

[0004] With the continuous increase in the scenarios and complexity of the system, higher requirements are put forward for reducing the interruption rate, reducing latency, enhancing reliability, enhancing the stability of the system, for the flexibility of services, and for power saving. At the same time, when designing the system, the compatibility between different system versions needs to be considered.

[0005] The 3GPP standardization organization has done relevant standardization work for 5G, forming a series of standards including 38.304, 38.211, 38.213, etc. The standard content can be referred to:

[0006] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.304 / 38304-g40.zip

[0007] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.211 / 38211-g50.zip

[0008] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.213 / 38213-g50.zip

[0009] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.331 / 38331-g50.zip SUMMARY OF THE INVENTION

[0010] In various communication scenarios, the use of relays is involved. For example, when a UE is not within the coverage area of a cell, it can access the network through a relay, and the relay node can be another UE. Relays mainly include layer 3 relays and layer 2 relays (L2U2N relays), both of which provide network access services for remote nodes (U2N remote UEs) through relay nodes. Among them, layer 3 relays are transparent to the access network, that is, the remote UE only establishes a connection with the core network, and the access network cannot identify whether the data comes from the remote node or the relay node; in layer 2 relays, the remote node (U2N remote UE) and the access network (RAN) have an RRC connection, the access network can manage the remote node, and a radio bearer can be established between the access network and the remote node. The relay can be another UE. In a system that supports layer 2 relays, the UE can communicate with the network through an L2 relay UE (L2 U2N relay UE), that is, use an indirect path, or can also communicate with the network directly without passing through a relay, that is, use a direct path. In some cases, for example, when the network signal deteriorates, the remote node can switch from the direct path to the indirect path; when the network signal improves, it can also switch from the indirect path to the direct path. In order to better support communication and improve service quality, the 5G system supports measurements in the non-RRC connected state, that is, the RRC idle state and the RRC inactive state. The UE makes measurements in the non-RRC connected state and reports them to the network after the next access to the network, and the network can optimize accordingly. The UE has different situations in the non-RRC connected state, such as normal residence, random cell selection, etc. In different situations, the UE needs to perform different measurements. After the introduction of L2 relays, these situations of the UE in the non-RRC connected state become more complex. For example, the UE may connect to the network through a relay in the absence of coverage, and the conventional measurement methods in 5G cannot adapt to the scenario of using a relay, and may even cause misjudgment or missed measurement. Therefore, the problems to be solved by this application include how to design an effective measurement and reporting method for the non-RRC connected state for a network using L2 relays.

[0011] In view of the above problems, this application provides a solution.

[0012] It should be noted that, without conflict, the embodiments and features in any node of this application can be applied to any other node. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other arbitrarily.

[0013] This application discloses a method used in a first node for wireless communication, including:

[0014] Receiving a first measurement configuration, where the first measurement configuration includes a first area configuration;

[0015] In a first state, performing a first set of operations; determining whether to record measurement results according to the first area configuration based on the first state;

[0016] Wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, and the first set of states includes at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, performing measurement result recording and the behavior of performing measurement result recording has nothing to do with the first area configuration.

[0017] As an embodiment, the problems to be solved by this application include: how a remote UE in a non-RRC connected state connected to the network through an L2 relay performs measurements and reports.

[0018] As an embodiment, the benefits of the above method include: The UE can perform more accurate measurements, avoiding missed measurements, optimizing network performance, improving service quality, and enhancing network coverage.

[0019] Specifically, according to one aspect of this application, the first candidate state is a normal resident state, and the first set of conditions includes that the quality of the cell where the first node resides does not meet the first quality criterion.

[0020] Specifically, according to one aspect of this application, the first set of states includes a second candidate state; in response to any condition in a second set of transition conditions being satisfied, the second candidate state can directly transition to the connected mode; the second candidate state is a state other than normal residence;

[0021] The use of the first state described in the sentence to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, recording the measurement results according to the first area configuration.

[0022] Specifically, according to one aspect of the present application, the set of first states includes a second candidate state; in response to any condition in the set of second transition conditions being satisfied, the second candidate state can be directly transitioned to the connected mode;

[0023] The use of the first state described in the sentence to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, recording the measurement results and the act of recording the measurement results is independent of the first area configuration.

[0024] Specifically, according to one aspect of the present application, the set of first states includes a second candidate state; in response to any condition in the set of second transition conditions being satisfied, the second candidate state can be directly transitioned to the connected mode;

[0025] The use of the first state described in the sentence to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to record the measurement results according to the first area configuration;

[0026] Wherein, the meaning that the quality of the first cell in the sentence is used to determine whether to record the measurement results according to the first area configuration is: when the quality of the first cell meets the first quality criterion, recording the measurement results according to the first area configuration, and when the quality of the first cell does not meet the first quality criterion, the execution of recording the measurement results is independent of the first area configuration.

[0027] Specifically, according to one aspect of the present application, in response to receiving the first measurement configuration, start a first timer, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; in response to the first timer being in a running state, record the measurement results.

[0028] Specifically, according to one aspect of the present application, the first measurement configuration indicates that the reporting type is event-triggered and the event type is outOfCoverage.

[0029] Specifically, according to one aspect of the present application, record the measurement results and add first information to the measurement results record, and the first information is used to indicate at least one of {the first state, receiving network information through a relay, being outside the coverage of the first cell, the first relay}.

[0030] Specifically, according to one aspect of the present application, measurement result recording is performed, and the identity of a first cell is added to the measurement result record, where the first cell belongs to the area indicated by the first area configuration;

[0031] Wherein, the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state. Specifically, according to one aspect of the present application, the first node is a user equipment.

[0032] Specifically, according to one aspect of the present application, measurement result recording is performed, and the identity of a first cell is added to the measurement result record, where the first cell does not belong to the area indicated by the first area configuration;

[0033] Wherein, the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state. Specifically, according to one aspect of the present application, the first node is a user equipment.

[0034] Specifically, according to one aspect of the present application, the first node is an Internet of Things terminal.

[0035] Specifically, according to one aspect of the present application, the first node is a relay.

[0036] Specifically, according to one aspect of the present application, the first node is a U2N remote UE.

[0037] Specifically, according to one aspect of the present application, the first node is a vehicle-mounted terminal.

[0038] Specifically, according to one aspect of the present application, the first node is an aircraft.

[0039] A method in a second node for use in wireless communication, which includes:

[0040] Sending a first measurement configuration, where the first measurement configuration includes a first area configuration;

[0041] The receiver of the first measurement configuration performs a first set of operations in a first state; determines whether to perform measurement result recording according to the first area configuration according to the first state;

[0042] Among them, the first operation set includes: listening for paging through a first relay, listening for a first system information set through the first relay, and performing reselection evaluation; the first state is the state when not in the RRC connected state; the first state belongs to a first state set, and the first state set includes at least a first candidate state; in response to any condition in a first conversion condition set being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first condition set is satisfied, performing measurement result recording and the act of performing measurement result recording is independent of the first area configuration.

[0043] Specifically, according to one aspect of the present application, the first candidate state is the normal resident state, and the first condition set includes that the quality of the cell where the first node resides does not meet the first quality criterion.

[0044] Specifically, according to one aspect of the present application, the first state set includes a second candidate state; in response to any condition in a second conversion condition set being satisfied, the second candidate state can directly transition to the connected mode; the second candidate state is a state other than the normal resident state;

[0045] Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the second candidate state, performing measurement result recording according to the first area configuration.

[0046] Specifically, according to one aspect of the present application, the first state set includes a second candidate state; in response to any condition in a second conversion condition set being satisfied, the second candidate state can directly transition to the connected mode;

[0047] Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the second candidate state, performing measurement result recording and the act of performing measurement result recording is independent of the first area configuration.

[0048] Specifically, according to one aspect of the present application, the first state set includes a second candidate state; in response to any condition in a second conversion condition set being satisfied, the second candidate state can directly transition to the connected mode;

[0049] Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration;

[0050] Among them, the meaning that the quality of the first cell is used to determine whether to perform measurement result recording according to the configuration of the first area is: when the quality of the first cell meets the first quality criterion, measurement result recording is performed according to the configuration of the first area; when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the configuration of the first area.

[0051] Specifically, according to one aspect of the present application, the first measurement configuration is used to start a first timer, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; the receiver of the first measurement configuration performs measurement result recording when the first timer is in an operating state.

[0052] Specifically, according to one aspect of the present application, the first measurement configuration indicates that the reporting type is event-triggered and the event type is outOfCoverage.

[0053] Specifically, receive a measurement result, where the measurement result includes first information, and the first information is used to indicate at least one of {the first state, receiving network information through a relay, being outside the coverage of the first cell, the first relay}.

[0054] Specifically, according to one aspect of the present application, receive a measurement result, where the measurement result includes the identity of the first cell, and the first cell belongs to the area indicated by the first area configuration;

[0055] Among them, the first cell is the serving cell when the first relay is in a non-RRC connected state or the primary cell when the first relay is in an RRC connected state.

[0056] Specifically, according to one aspect of the present application, receive a measurement result, where the measurement result includes the identity of the first cell, and the first cell does not belong to the area indicated by the first area configuration;

[0057] Among them, the first cell is the serving cell when the first relay is in a non-RRC connected state or the primary cell when the first relay is in an RRC connected state.

[0058] Specifically, according to one aspect of the present application, the second node is a base station.

[0059] Specifically, according to one aspect of the present application, the second node is a relay.

[0060] Specifically, according to one aspect of the present application, the second node is an aircraft.

[0061] Specifically, according to one aspect of the present application, the second node is a satellite.

[0062] Specifically, according to one aspect of the present application, the second node is an access point device.

[0063] The present application discloses a first node for use in wireless communication, including:

[0064] A first receiver, receiving a first measurement configuration, the first measurement configuration including a first area configuration;

[0065] The first receiver, in a first state, executes a first set of operations; determines whether to record measurement results according to the first area configuration according to the first state;

[0066] Wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, the first set of states includes at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration according to the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, recording measurement results and the act of recording measurement results has nothing to do with the first area configuration.

[0067] The present application discloses a second node for use in wireless communication, including:

[0068] A second transmitter, sending a first measurement configuration, the first measurement configuration including a first area configuration;

[0069] The receiver of the first measurement configuration, in a first state, executes a first set of operations; determines whether to record measurement results according to the first area configuration according to the first state;

[0070] Among them, the first operation set includes: listening for paging through a first relay, listening for a first system information set through the first relay, and performing reselection evaluation; the first state is the state when not in the RRC connected state; the first state belongs to a first state set, and the first state set includes at least a first candidate state; in response to any condition in a first conversion condition set being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established. Determining whether to perform measurement result recording according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first condition set is satisfied, performing measurement result recording and the behavior of performing measurement result recording is independent of the first area configuration.

[0071] As an embodiment, compared with traditional solutions, the present application has the following advantages:

[0072] It avoids missed measurements, especially missed measurements of UEs in the non-RRC connected state that are connected to the network through a relay outside the coverage area.

[0073] For non-RRC connected state UEs that are connected to the network through a relay outside the coverage area, they do not have to be restricted by the area configuration, thus enriching the measurement results and being beneficial to further network optimization.

[0074] For non-RRC connected state UEs in states other than any cell selection state and normal residence, measurement and corresponding reporting are also supported, thus enriching the measurement results and being beneficial for the network to comprehensively grasp the measurement results for network optimization and analysis.

[0075] The connection situation of the UE is added to the measurement results, such as whether it is connected to the network through a relay, which is beneficial for the network to optimize for the relay scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] By reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present application will become more apparent:

[0077] Figure 1 A flowchart showing receiving a first measurement configuration, performing a first operation set, and determining whether to perform measurement result recording according to a first area configuration based on a first state according to an embodiment of the present application;

[0078] Figure 2 A schematic diagram showing a network architecture according to an embodiment of the present application;

[0079] Figure 3 A schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0080] Figure 4 Shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0081] Figure 5 Shows a flowchart of wireless signal transmission according to an embodiment of the present application;

[0082] Figure 6 Shows a schematic diagram of a region according to an embodiment of the present application;

[0083] Figure 7 Shows a schematic diagram of a protocol stack for relay communication according to an embodiment of the present application;

[0084] Figure 8 Shows a schematic diagram of a state transition according to an embodiment of the present application;

[0085] Figure 9 Shows a schematic diagram of a state transition according to an embodiment of the present application;

[0086] Figure 10 Illustrates a schematic diagram of a processing device in a first node according to an embodiment of the present application;

[0087] Figure 11 Illustrates a schematic diagram of a processing device in a second node according to an embodiment of the present application. Embodiment

[0088] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined arbitrarily with each other.

[0089] Example 1

[0090] Embodiment 1 illustrates a flowchart of receiving a first measurement configuration, performing a first set of operations, and determining whether to record measurement results according to a first region configuration based on a first state according to an embodiment of the present application, as shown in the attached Figure 1 figure. In the attached Figure 1 figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal sequence between the represented steps.

[0091] In Embodiment 1, the first node in the present application receives a first measurement configuration in step 101; performs a first set of operations in step 102; and determines whether to record measurement results according to a first region configuration based on a first state in step 103;

[0092] Among them, the first measurement configuration includes a first area configuration; the first node, in a first state, executes a first set of operations; the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first state set, and the first state set includes at least a first candidate state; in response to any condition in a first conversion condition set being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first condition set is satisfied, recording the measurement results and the behavior of recording the measurement results has nothing to do with the first area configuration.

[0093] As an embodiment, the first node is a UE (User Equipment).

[0094] As an embodiment, the first node is not operating in SNPN AM (Access Mode).

[0095] As an embodiment, a direct path refers to a transmission path from a UE to the network. Transmitting through the direct path means that data is sent between the remote UE from the UE to the network (U2N) and the network without passing through a relay.

[0096] As a sub - embodiment of this embodiment, the data includes higher - layer data and signaling.

[0097] As a sub - embodiment of this embodiment, the data includes RRC signaling.

[0098] As a sub - embodiment of this embodiment, the data includes a bit string or a bit block.

[0099] As a sub - embodiment of this embodiment, the data only includes signaling or data carried by an RB (radio bearer).

[0100] As an embodiment, an indirect path refers to a transmission path from a UE to the network. Transmitting through the indirect path means that data is forwarded between the remote UE from the UE to the network (U2N) and the network through a relay UE of the UE to the network (U2N).

[0101] As a sub - embodiment of this embodiment, the data includes higher - layer data and signaling.

[0102] As a sub - embodiment of this embodiment, the data includes RRC signaling.

[0103] As a sub - embodiment of this embodiment, the data includes bit strings or bit blocks.

[0104] As a sub - embodiment of this embodiment, the data only includes the signaling or data carried by the RB (radio bearer).

[0105] As an embodiment, a U2N relay UE refers to a UE that provides the function of supporting the connection of a U2N remote UE to the network.

[0106] As an embodiment, a U2N remote UE refers to a UE that needs to communicate with the network through a U2N relay UE.

[0107] As an embodiment, a U2N remote UE refers to a UE that needs to communicate with the network through a U2N relay UE.

[0108] As an embodiment, a U2N remote UE refers to a UE that supports relay services and communicates with the network.

[0109] As an embodiment, a U2N relay is a U2N relay UE.

[0110] As an embodiment, when performing unicast service transmission and reception with the network, both the U2N relay and the U2N remote node are in the RRC connected state.

[0111] As an embodiment, when the U2N remote UE is in the RRC idle state or the RRC inactive state, the U2N relay UE can be in any RRC state, including the RRC connected state, the RRC idle state, and the RRC inactive state.

[0112] As an embodiment, not transmitting through a direct path is equal to transmitting through an indirect path.

[0113] As an embodiment, not transmitting through a direct path includes transmitting through a relay.

[0114] As an embodiment, transmitting through a direct path is or includes not transmitting through a relay.

[0115] As an embodiment, transmitting through a direct path is or includes not relaying through a relay.

[0116] As an example, a U2N relay UE is a UE that provides connectivity support to a network for a U2N remote UE.

[0117] As a sub - example of this example, a U2N relay UE is a UE.

[0118] As a sub - example of this example, a U2N relay UE provides a relay service to a network for a U2N remote UE.

[0119] As an example, a U2N remote UE is a UE that communicates with a network through a U2N relay UE.

[0120] As an example, the direct mode is a mode that uses the direct path.

[0121] As an example, the direct mode is a mode in which a U2N remote UE communicates with a network using the direct path.

[0122] As an example, the direct mode is a mode in which a U2N remote UE transmits RRC signaling or establishes an RRC connection with a network using the direct path.

[0123] As an example, the indirect mode is a mode that uses the indirect path.

[0124] As an example, the indirect mode is a mode that uses the indirect path.

[0125] As an example, the direct mode is a mode in which a U2N remote UE communicates with a network using the indirect path.

[0126] As an example, the direct mode is a mode in which a U2N remote UE transmits RRC signaling or establishes an RRC connection with a network using the indirect path.

[0127] As an example, the serving cell is or includes the cell where the UE camps. Performing cell search includes the UE searching for a suitable cell of a selected PLMN (Public Land Mobile Network) or SNPN (Stand-alone Non-Public Network), selecting the suitable cell to provide available services, and monitoring the control channel of the suitable cell. This process is defined as camping on the cell; that is, a camped cell is the serving cell of the UE relative to this UE. Camping on a cell in the RRC idle state or RRC inactive state has the following benefits: enabling the UE to receive system messages from the PLMN or SNPN; when registered, if the UE wishes to establish an RRC connection or resume a suspended RRC connection, the UE can achieve this by performing initial access on the control channel of the camped cell; the network can page the UE; enabling the UE to receive ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert System) notifications.

[0128] As an example, for the U2N remote node, the serving cell is or includes the cell where the U2N relay camps or connects.

[0129] As an example, for a UE in the RRC connected state without CA / DC (carrier aggregation / dual connectivity) configured, there is only one serving cell, which includes the primary cell. For a UE in the RRC connected state with CA / DC (carrier aggregation / dual connectivity) configured, the serving cell is used to indicate the cell set including the special cell (SpCell, Special Cell) and all secondary cells. The primary cell is the MCG (Master Cell Group) cell, operating on the primary frequency, and the UE performs the initial connection establishment process or initiates connection re-establishment on the primary cell. For dual connectivity operation, the special cell refers to the PCell (Primary Cell) of the MCG or the PSCell (Primary SCG Cell) of the SCG (Secondary Cell Group); if it is not a dual connectivity operation, the special cell refers to the PCell.

[0130] As an example, the frequency at which a SCell (Secondary Cell) operates is a secondary frequency.

[0131] As an example, the individual content of an information element is referred to as a field.

[0132] As an example, MR-DC (Multi-Radio Dual Connectivity) refers to the dual connectivity between an E-UTRA and an NR node, or the dual connectivity between two NR nodes.

[0133] As an example, in MR-DC, the radio access node that provides the control plane connection to the core network is the master node, and the master node can be a master eNB, a master ng-eNB, or a master gNB.

[0134] As an example, MCG refers to, in MR-DC, a set of serving cells associated with the master node, including the SpCell, and may also, optionally, include one or more SCell.

[0135] As an example, the PCell is the SpCell of the MCG.

[0136] As an example, the PSCell is the SpCell of the SCG.

[0137] As an example, in MR-DC, the radio access node that does not provide the control plane connection to the core network and provides additional resources to the UE is the secondary node. The secondary node can be an en-gNB, a secondary ng-eNB, or a secondary gNB.

[0138] As an example, in MR-DC, a set of serving cells associated with the secondary node is the SCG (secondary cell group), including the SpCell and, optionally, one or more SCell.

[0139] As an example, the access layer function that enables V2X (Vehicle-to-Everything) communication defined in 3GPP standard TS 23.285 is V2X sidelink communication, where the V2X sidelink communication occurs between neighboring UEs and uses E-UTRA technology without traversing network nodes.

[0140] As an example, the access stratum function that enables at least the V2X (Vehicle-to-Everything) communication defined in 3GPP standard TS 23.287 is NR sidelink communication, where the NR sidelink communication occurs between two or more neighboring UEs and uses NR technology without traversing network nodes.

[0141] As an example, a sidelink is a direct communication link between UE-to-UE that uses a sidelink resource allocation mode, physical layer signals or channels, and physical layer procedures.

[0142] As an example, not in or not at or not within coverage is equal to outside coverage.

[0143] As an example, within coverage is equal to within the coverage.

[0144] As an example, outside coverage is equal to outside the coverage.

[0145] As an example, the first node is a U2N remote node.

[0146] As an example, the PDCP entities corresponding to the radio bearers that terminate between the UE and the network are located within the UE and the network respectively.

[0147] As an example, the direct path is the direct path or communication link or channel or bearer used during the direct path transmission.

[0148] As an example, the direct path transmission means that the data carried by at least the SRB (Signaling radio bearer) between the UE and the network does not pass through the relay or forwarding of other nodes.

[0149] As an example, the direct path transmission means that the RLC bearers associated with at least the SRB (Signaling radio bearer) between the UE and the network terminate at the UE and the network respectively.

[0150] As an example, the direct path transmission means that the RLC entities associated with at least the SRB (Signaling radio bearer) between the UE and the network terminate at the UE and the network respectively.

[0151] As an example, the direct path transmission means that there is a direct communication link between the UE and the network.

[0152] As an example, the direct path transmission means that there is a Uu interface between the UE and the network.

[0153] As an example, the direct path transmission means that there is a MAC layer of the Uu interface between the UE and the network, and the MAC layer of the Uu interface carries RRC signaling.

[0154] As an example, the direct path transmission means that there is a physical layer of the Uu interface between the UE and the network.

[0155] As an example, the direct path transmission means that there are logical channels and / or transport channels between the UE and the network.

[0156] As an example, the indirect path is the indirect path or communication link or channel or bearer used during the indirect path transmission.

[0157] As an example, the indirect path transmission means that the data carried by at least the SRB (Signaling radio bearer) between the UE and the network is relayed or forwarded by other nodes.

[0158] As an example, the indirect path transmission means that the RLC bearers associated with at least the SRB (Signaling radio bearer) between the UE and the network terminate at the UE and other nodes, and other nodes and the network respectively.

[0159] As an example, the indirect path transmission means that the RLC entities associated with at least the SRB (Signaling radio bearer) between the UE and the network terminate at the UE and other nodes, and other nodes and the network respectively.

[0160] As an example, the indirect path transmission means that there is no direct communication link between the UE and the network.

[0161] As an example, the indirect path transmission means that there is no MAC layer of the Uu interface between the UE and the network.

[0162] As an example, the indirect path transmission means that there is no physical layer of the Uu interface between the UE and the network.

[0163] As an example, the indirect path transmission means that there are no logical channels and no transport channels between the UE and the network.

[0164] As an embodiment, the network includes a radio access network (RAN) and / or a serving cell and / or a base station.

[0165] As an embodiment, the meaning of the phrase at least SRB includes at least one of {SRB0, SRB1, SRB2, SRB3}.

[0166] As an embodiment, the meaning of the phrase at least SRB includes SRB and DRB (data radio bearer).

[0167] As an embodiment, the UE in the phrase UE and the network includes the first node.

[0168] As an embodiment, the other nodes include relay nodes or other UEs.

[0169] As an embodiment, when using direct path transmission, the UE can send physical layer signaling to the network; when using non-direct path transmission, the UE cannot send or directly send physical layer signaling to the network.

[0170] As an embodiment, when using direct path transmission, the UE can send MAC CE to the network; when using non-direct path transmission, the UE cannot send or directly send MAC CE to the network.

[0171] As an embodiment, when using direct path transmission, there is no other protocol layer between the PDCP layer and the RLC layer of the first node; when using non-direct path transmission, there is an other protocol layer between the PDCP layer and the RLC layer of the first node.

[0172] As a sub-embodiment of this embodiment, the other protocol layer is or includes an adaptation layer.

[0173] As an embodiment, when using direct path transmission, the network directly schedules the uplink transmission of the first node through DCI; when using non-direct path transmission, the network does not directly schedule the uplink transmission of the first node through DCI.

[0174] As an embodiment, when using direct path transmission, the SRB of the first node is associated with the RLC entity and / or the RLC layer and / or the RLC bearer; when using non-direct path transmission, the SRB of the first node is associated with the RLC entity of the PC5 interface.

[0175] As an embodiment, when using direct path transmission, there is a mapping relationship between the SRB of the first node and the RLC entity of the Uu interface; when using non-direct path transmission, there is a mapping relationship between the SRB of the first node and the RLC entity of the PC5 interface.

[0176] As an embodiment, there is only a direct path or only an indirect path between the first node and the network.

[0177] As an embodiment, the meaning of switching from a direct path to an indirect path is: starting to use the indirect path while stopping using the direct path.

[0178] As an embodiment, the meaning of switching from a direct path to an indirect path is: starting to use the indirect path for transmission while stopping using the direct path for transmission.

[0179] As an embodiment, the meaning of switching from a direct path to an indirect path is: changing from direct path transmission to indirect path transmission.

[0180] As an embodiment, the meaning of switching from a direct path to an indirect path is: the first node associates the RLC entity of the SRB with the PC5 interface, and at the same time releases the RLC entity of the Uu interface associated with the SRB.

[0181] As an embodiment, the meaning of switching from a direct path to an indirect path is: the first node associates the RLC entities of the SRB and the DRB with the PC5 interface, and at the same time releases the RLC entities of the Uu interface associated with the SRB and the DRB.

[0182] As an embodiment, the relay in this application refers to a U2N relay UE.

[0183] As an embodiment, the relay in this application refers to an L2 U2N relay UE.

[0184] As an embodiment, the first state is the normal camping state.

[0185] As an embodiment, the first state is not the normal camping state.

[0186] As an embodiment, the first state is the normal camping state through relay.

[0187] As an embodiment, the first state is the indirect camping state.

[0188] As an embodiment, the name of the first state includes relay.

[0189] As an embodiment, the name of the first state includes camp.

[0190] As an example, the name of the first state includes "indirect".

[0191] As an example, the name of the first state includes "L2".

[0192] As an example, the first state is not the Connected mode.

[0193] As an example, the first state is not camped on any cell.

[0194] As an example, the any cell selection state is applied to the RRC_IDLE and RRC_INACTIVE states; in the any cell selection state, the UE needs to perform a cell selection process to find a suitable cell. If no suitable cell is found in all RATs (radio access technology) supported by the UE and all frequency bands and the UE is not in the SNPNAM, it should attempt to find an acceptable cell of an arbitrary PLMN to camp on, and should attempt on all RATs supported by the UE and first search for high-quality cells.

[0195] As a sub-example of this example, the UE does not support L2 U2N relay.

[0196] As a sub-example of this example, the UE has not found a suitable L2 U2N relay.

[0197] As an example, if a UE is not camped on any cell, then the UE should be in the any cell selection state.

[0198] As a sub-example of this example, the UE has not found a suitable L2 U2N relay.

[0199] As a sub-example of this example, the UE does not support L2 U2N relay.

[0200] As an example, a UE in the any cell selection state should perform relay selection to find a suitable relay.

[0201] As a sub-example of this example, the relay is an L2 U2N relay.

[0202] As an example, when the first node is in the first state and any condition in the first condition set is satisfied, the first node transits from the first state to the connection mode.

[0203] As a sub - example of this example, the first node transits from the first state to the connection mode without going through other states.

[0204] As an example, when the first node is in the first state and any condition in the third condition set is satisfied, the first node transits from the first state to the random cell selection.

[0205] As a sub - example of this example, the first node transits from the first state to the random cell selection state without going through other states.

[0206] As a sub - example of this example, the third condition set includes: neither a suitable cell nor a suitable relay is found.

[0207] As a sub - example of this example, the third condition set includes: neither a suitable cell nor a suitable L2U2N relay UE is found.

[0208] As an example, the first state can be directly converted to the connection mode.

[0209] As an example, the first relay is an L2 U2N relay.

[0210] As an example, the first relay is a U2N relay UE.

[0211] As an example, the first relay is a UE.

[0212] As an example, the first relay is an L2 U2N relay UE.

[0213] As an example, the first relay is an L2 relay.

[0214] As an example, any operation in the first operation set has the opportunity to be executed.

[0215] As an example, the behavior of the first relay listening for paging includes the first node indicating to the first relay the identity of the first node used to identify paging.

[0216] As a sub - example of this example, the identity used to identify paging includes P - RNTI.

[0217] As a sub - embodiment of this embodiment, the identity used to identify paging includes I - RNTI.

[0218] As a sub - embodiment of this embodiment, the identity used to identify paging includes fullI - RNTI.

[0219] As a sub - embodiment of this embodiment, the identity used to identify paging includes ng - 5G - S - TMSI.

[0220] As a sub - embodiment of this embodiment, the identity used to identify paging is included in the paging message for paging the first node sent by the base station.

[0221] As a sub - embodiment of this embodiment, the identity used to identify paging is included in the pagingRecord in the paging message for paging the first node sent by the base station.

[0222] As an embodiment, the behavior of the first relay listening for paging includes the first node indicating the paging parameters of the first node to the first relay.

[0223] As a sub - embodiment of this embodiment, the paging parameters include a paging cycle.

[0224] As a sub - embodiment of this embodiment, the paging parameters include a discontinuous reception cycle.

[0225] As a sub - embodiment of this embodiment, the paging parameters include parameters for determining a paging time slot.

[0226] As a sub - embodiment of this embodiment, the paging parameters include an offset for determining a paging time slot.

[0227] As a sub - embodiment of this embodiment, the paging parameters include a random number for determining a paging time slot.

[0228] As an embodiment, the behavior of the first relay listening for a first set of system information includes the first relay receiving at least essential system information.

[0229] As a sub - embodiment of this embodiment, the essential system information includes at least some or all bits of the MIB (master information block).

[0230] As a sub - embodiment of this embodiment, the essential system information includes at least some or all bits of SIB1.

[0231] As a sub - embodiment of this embodiment, the core system information includes at least part or all bits of SIB12.

[0232] As a sub - embodiment of this embodiment, the first system information set includes the core system information.

[0233] As an embodiment, the behavior of the first relay listening to the first system information set includes the first relay monitoring a change in the system information and forwarding at least a part of the latest system information to the first node.

[0234] As an embodiment, the behavior of the first relay listening to the first system information set includes: the first node receiving the system information forwarded by the first relay.

[0235] As a sub - embodiment of this embodiment, the first system information set includes at least one SIB (System Information Block).

[0236] As a sub - embodiment of this embodiment, the behavior of receiving the system information forwarded by the first relay includes receiving at least one system information block.

[0237] As a sub - embodiment of this embodiment, the first relay forwards the first system information set through a discovery message.

[0238] As a sub - embodiment of this embodiment, the first relay forwards the first system information set through a PC5 - S message.

[0239] As a sub - embodiment of this embodiment, the first relay forwards the first system information set through a PC5 - RRC message.

[0240] As a sub - embodiment of this embodiment, the first relay forwards the system information according to the system information blocks that the first node is interested in or requests as indicated by the first node, and the first system information set includes the system information that the first node is interested in or requests.

[0241] As a sub - embodiment of this embodiment, after receiving an indication from the first node regarding a request for system information, the first relay requests and / or receives the system information.

[0242] As an embodiment, the behavior of the first relay listening to the first system information set: the first node receives an indication of a change in the system information sent by the first relay.

[0243] As a sub - embodiment of this embodiment, the system information corresponding to the indication regarding the change of the system information and the indication regarding the change of the system information are simultaneously sent by the first relay.

[0244] As a sub - embodiment of this embodiment, the first node requests system information from the first relay according to the indication regarding the change of the system information.

[0245] As a sub - embodiment of this embodiment, after receiving the indication regarding the change of the system information, the first node requests system information from the first relay.

[0246] As an embodiment, the first system information set includes at least one system information block (SIB).

[0247] As an embodiment, the first system information set includes at least part of the bits of at least one system information block (SIB).

[0248] As an embodiment, the first system information set includes all SIBs.

[0249] As an embodiment, the first system information set includes any one of the SIBs.

[0250] As an embodiment, the first system information set includes all SIBs related to the use of non - direct path transmission.

[0251] As an embodiment, the first system information set includes at least SIB1.

[0252] As an embodiment, the first system information set includes at least SIB12.

[0253] As an embodiment, the first operation set includes listening for Short Messages through the first relay.

[0254] As a sub - embodiment of this embodiment, the Short Message is not an SMS.

[0255] As a sub - embodiment of this embodiment, the sender of the Short Message includes a cell or a base station, and the Short Message is carried by DCI (downlink control information) when transmitted over the Uu interface.

[0256] As a sub - embodiment of this embodiment, the Short Message includes 8 bits.

[0257] As a sub - embodiment of this embodiment, the second bit of the Short Message is used to indicate an alarm.

[0258] As a sub - embodiment of this embodiment, the second bit of the short message is used to indicate ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert Service).

[0259] As a sub - embodiment of this embodiment, the first bit of the short message does not indicate an alert.

[0260] As a sub - embodiment of this embodiment, the first bit of the short message indicates a system message change.

[0261] As a sub - embodiment of this embodiment, the third bit of the short message indicates stopping paging monitoring.

[0262] As a sub - embodiment of this embodiment, the first relay monitors the short message sent by the cell or base station on behalf of the first node according to the P - RNTI of the first node.

[0263] As an embodiment, the first set of operations does not include listening for Short Message through the first relay.

[0264] As a sub - embodiment of this embodiment, the short message is not an SMS.

[0265] As an embodiment, the first state only applies to the RRC_IDLE and RRC_INACTIVE states.

[0266] As an embodiment, the first state only applies to non - RRC connected states, that is, states other than the RRC_CONNECTED state.

[0267] As an embodiment, the first set of operations includes performing necessary measurements related to cell selection and / or reselection.

[0268] As an embodiment, the first set of operations includes performing necessary measurements related to relay selection and / or reselection.

[0269] As an embodiment, the cell selection and reselection in this application refers to cell selection and / or cell reselection.

[0270] As an embodiment, the cell selection and reselection in the first state and the normal residence state refers to cell reselection.

[0271] As an embodiment, the cell selection and reselection in any cell selection state refers to cell selection.

[0272] As an example, when using an L2 U2N relay, in the first state, the first node may perform cell selection.

[0273] As an example, when using an L2 U2N relay, in the first state, the first node only performs cell selection and does not perform cell reselection.

[0274] As an example, when using an L2 U2N relay, in the normal resident state, the first node may perform cell selection.

[0275] As a sub - example of this example, when using an L2 U2N relay, in the normal resident state, the first node only performs cell selection and does not perform cell reselection.

[0276] As an example, when not using an L2 U2N relay, in the normal resident state, the first node only performs cell reselection.

[0277] As an example, the behavior of performing reselection evaluation includes performing cell selection and / or reselection process.

[0278] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include internal triggering of the first node to meet performance requirements.

[0279] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include receiving information about a change in the cell reselection evaluation process on the BCCH (Broadcast Control Channel).

[0280] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include receiving a failure message of the first relay.

[0281] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include receiving a radio link failure message of the first relay.

[0282] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include receiving an indication of a handover occurring in the first relay.

[0283] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include receiving an indication that the resident cell of the first relay is unavailable.

[0284] As a sub - example of this example, the conditions for triggering the execution of the cell reselection process include receiving an indication of no coverage in the first relay.

[0285] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include receiving an indication of the link release of the first relay.

[0286] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include receiving an indication that the first relay is barred.

[0287] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include receiving an indication that the first relay enters any cell selection state.

[0288] As a sub - embodiment of this embodiment, receive an indication that the first relay enters the state of camping on any cell.

[0289] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include that the link with the first relay fails or is released.

[0290] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include that the link with the first relay cannot meet the QoS requirements.

[0291] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include that the link quality with the first relay is lower than a certain threshold.

[0292] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include not receiving a message or feedback related to the keep - alive message from the first relay.

[0293] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include that the first relay is no longer a suitable relay.

[0294] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include that the first relay is no longer a suitable L2 U2N relay.

[0295] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the cell reselection process include that the cell where the first node camps is no longer a suitable cell.

[0296] As an embodiment, the behavior of performing reselection evaluation includes performing L2 U2N relay selection and / or reselection process.

[0297] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first relay is no longer a suitable L2 U2N relay.

[0298] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the current L2 U2N relay is no longer a suitable L2 U2N relay.

[0299] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include being triggered by internal factors of the first node.

[0300] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the cell where the first node resides is no longer a suitable cell.

[0301] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the cell where the first relay resides is no longer a suitable cell.

[0302] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the quality of the cell where the first node resides is lower than a certain threshold.

[0303] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the link quality between the first node and the first relay is lower than a certain threshold.

[0304] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first node discovers a suitable cell.

[0305] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first node discovers a cell with a quality higher than a certain threshold.

[0306] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the link between the first node and the first relay is released or fails.

[0307] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first relay instructs the first node to perform the L2 U2N relay selection or reselection.

[0308] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include finding an L2 U2N relay with better signal quality.

[0309] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first relay is blocked.

[0310] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first relay experiences a radio link failure.

[0311] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first node leaves the RRC connected state.

[0312] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first node leaves the connected mode.

[0313] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first node enters any cell selection state.

[0314] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the first node enters the state of camping on any cell.

[0315] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include reaching a specific time.

[0316] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include entering a specific area.

[0317] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the position relative to a certain specific reference point meets certain requirements.

[0318] As a sub - embodiment of this embodiment, the conditions for triggering the execution of the L2 U2N relay selection and / or reselection process include that the positions relative to two certain specific reference points meet certain requirements.

[0319] As an embodiment, the behavior of performing reselection evaluation includes cell selection and / or reselection evaluation, and L2 U2N relay selection and / or reselection evaluation.

[0320] As a sub - embodiment of this embodiment, when the first node discovers a suitable cell but does not discover a suitable L2 U2N relay, the first node enters the normal residence state and resides in the discovered suitable cell.

[0321] As a sub - embodiment of this embodiment, when the first node does not discover a suitable cell but discovers a suitable L2 U2N relay, the first node enters the first state.

[0322] As a sub - embodiment of this embodiment, when the first node does not discover a suitable cell but discovers a suitable L2 U2N relay, the first node enters the first state and resides in the discovered L2 U2N relay.

[0323] As a sub - embodiment of this embodiment, when the first node does not discover a suitable cell but discovers a suitable L2 U2N relay, the first node enters the first state and resides in the PCell or serving cell of the discovered L2 U2N relay.

[0324] As a sub - embodiment of this embodiment, the first state is the normal residence state.

[0325] As a sub - embodiment of this embodiment, when the first node discovers a suitable cell and also discovers a suitable L2 U2N relay, the first node makes a selection between the suitable cell and the suitable L2 U2N relay according to an internal algorithm.

[0326] As an embodiment, a suitable L2 relay is a suitable L2 U2N relay.

[0327] As an embodiment, a suitable L2 relay is a relay that meets the second quality requirement.

[0328] As a sub - embodiment of this embodiment, the second quality requirement is or includes that the radio channel quality of the sidelink between the first node and the candidate relay is greater than or not less than a certain threshold.

[0329] As a sub - embodiment of this embodiment, the second quality requirement is or includes that the SL - RSRP measurement result is greater than or not less than a certain threshold.

[0330] As a sub - embodiment of this embodiment, the second quality requirement is or includes that the SD - RSRP measurement result is greater than or not less than a certain threshold.

[0331] As a sub - embodiment of this embodiment, the second quality requirement is for the radio channel quality between the first node and the candidate relay.

[0332] As a sub - embodiment of this embodiment, the second quality requirement is directed to the sidelink channel quality between the first node and the candidate relay.

[0333] As a sub - embodiment of this embodiment, the second quality requirement is directed to the SL - RSRP and / or SD - RSRP measurement results between the first node and the candidate relay.

[0334] As an embodiment, the suitable L2 relay is or includes a relay that is not blocked.

[0335] As an embodiment, the suitable L2 relay is or includes an L2 U2N relay.

[0336] As an embodiment, the suitable L2 relay is or includes a relay whose resident cell is a suitable cell.

[0337] As an embodiment, the suitable L2 relay is or includes: a relay for which the PCell is a suitable cell and the suitable relay is in the RRC connected state.

[0338] As an embodiment, the suitable L2 relay is or includes: a relay for which the serving cell is a suitable cell and the suitable relay is in the RRC connected state.

[0339] As an embodiment, the suitable L2 relay is or includes: a relay for which the PCell belongs to the PLMN selected or registered by the first node or a PLMN belonging to the equivalent PLMN list, and the suitable relay is in the RRC connected state.

[0340] As an embodiment, the suitable L2 relay is or includes: a relay for which the serving cell belongs to the PLMN selected or registered by the first node or a PLMN belonging to the equivalent PLMN list, and the suitable relay is in the non - RRC connected state.

[0341] As an embodiment, the suitable L2 relay is or includes a relay that provides or can provide at least core system information.

[0342] As an embodiment, the suitable L2 relay is or includes a relay that meets the QoS requirements.

[0343] As an embodiment, the suitable L2 relay is or includes a relay that complies with the NAS layer requirements.

[0344] As an embodiment, the suitable L2 relay is or includes a relay for which the indicated RSC meets the L2 relay requirements.

[0345] As a sub - embodiment of this embodiment, the relay service code (RSC) is used for 5G ProSe U2N (UE - to - Network) relay discovery and is used to indicate the connection services provided by the 5G ProSe U2N relay; the 5G ProSe U2N relay and the 5G ProSe U2N remote UE can determine whether to support layer 2 or layer 3 relay from the RSC.

[0346] As an embodiment, the suitable L2 relay is or includes: a relay that has established a PC5 connection.

[0347] As an embodiment, the suitable L2 relay is or includes: a relay that has established a direct link.

[0348] As a sub - embodiment of this embodiment, the PC5 - S message used for establishing the direct link includes the RSC.

[0349] As a sub - embodiment of this embodiment, the establishment of the direct link includes sending a DIRECT_COMMUNICATION_REQUEST message.

[0350] As an embodiment, the suitable L2 relay is or includes: a relay that has received system information from the suitable L2 relay.

[0351] As an embodiment, the suitable L2 relay is or includes: a relay that has received core system information from the suitable L2 relay.

[0352] As an embodiment, the suitable L2 relay is or includes: a relay to which the first node has indicated information related to receiving paging.

[0353] As an embodiment, the suitable L2 relay is or includes: a relay to which the first node has indicated information related to receiving paging and has received confirmation.

[0354] As an embodiment, the suitable L2 relay is or includes: a relay having the ability to monitor the paging message of the first node.

[0355] As an embodiment, the suitable L2 relay is or includes: a relay capable of monitoring the paging message of the first node.

[0356] As an embodiment, the suitable L2 relay is or includes: a relay capable of forwarding network notifications.

[0357] As an embodiment, the suitable L2 relay is or includes: a relay that has not experienced a radio link failure.

[0358] As an embodiment, the suitable L2 relay is or includes: an L2U2N relay for which the measured SL-RSRP and / or SD-RSRP meet certain requirements.

[0359] As a sub-embodiment of this embodiment, the first node performs measurements on candidate relays to obtain the SL-RSRP and / or the SD-RSRP.

[0360] As a sub-embodiment of this embodiment, candidate relays perform measurements on the first node to obtain the SL-RSRP and / or the SD-RSRP.

[0361] As an embodiment, the suitable L2 relay is or includes: an L2U2N relay for which the measured SL-RSRQ and / or SD-RSRQ meet certain requirements.

[0362] As a sub-embodiment of this embodiment, the first node performs measurements on candidate relays to obtain the SL-RSRQ and / or SD-RSRQ.

[0363] As a sub-embodiment of this embodiment, candidate relays perform measurements on the first node to obtain the SL-RSRQ and / or the SD-RSRQ.

[0364] As an embodiment, the suitable L2 relay is or includes: a relay that has not received a direct link release or rejection indication.

[0365] As an embodiment, the suitable L2 relay is or includes: a relay for which the direct link therebetween is alive.

[0366] As an embodiment, the suitable L2 relay is or includes: a relay in a normal resident state or a relay in an RRC connected state.

[0367] As an embodiment, the phrase "the RRC connection is established" includes establishing an RRC connection.

[0368] As an embodiment, the phrase "the RRC connection is established" includes resuming an RRC connection.

[0369] As an embodiment, the phrase "the RRC connection is established" includes re-establishing an RRC connection.

[0370] As an embodiment, when the RRC connection is established, the first node enters the RRC connected state.

[0371] As an example, when the RRC connection is established, the first node has an RRC connection with the access network.

[0372] As an example, the behavior of the first relay listening for paging includes registering and receiving paging messages from a PLMN or an SNPN.

[0373] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes initiating a registration process for the PLMN or the SNPN.

[0374] As a sub - example of this example, the registration process includes sending a NAS layer request regarding registration.

[0375] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes completing a registration process for the PLMN or the SNPN.

[0376] As a sub - example of this example, the registration process includes sending a NAS layer request regarding registration.

[0377] As a sub - example of this example, the registration process includes receiving an allowed response from the NAS layer regarding registration.

[0378] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes that after the paging message from the PLMN or the SNPN is sent to the serving cell or the base station, it triggers the serving cell or the base station to send a paging message and / or DCI related to paging over the air interface.

[0379] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes: receiving a paging message sent by a registered PLMN.

[0380] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes: receiving a paging message sent by an equivalent PLMN of a registered PLMN.

[0381] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes: having executed the NAS layer registration process and receiving a paging message sent for the PLMN.

[0382] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes: being in a registered state and receiving a paging message sent for the PLMN.

[0383] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: for the NAS or the core network being in a registered state, receiving a paging message sent for the PLMN.

[0384] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: receiving a paging message sent by a registered SNPN.

[0385] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: receiving a paging message sent by the equivalent PLMN of a registered SNPN.

[0386] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: performing an NAS layer registration process and receiving a paging message sent for the SNPN.

[0387] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: being in a registered state and receiving a paging message sent for the SNPN.

[0388] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: for the NAS or the core network being in a registered state, receiving a paging message sent for the SNPN.

[0389] As an example, the core network and the access network may each have their own paging messages. If not specifically emphasized as a paging message from the core network or a PLMN or an SNPN, the paging message referred to in this application is all about the paging or paging message on the RAN side.

[0390] As an example, a paging message from a PLMN or an SNPN includes a notification from a PLMN or an SNPN.

[0391] As an example, the first node has been registered in a first PLMN.

[0392] As a sub - example of this example, the first PLMN is any PLMN.

[0393] As a sub - example of this example, the first PLMN is the PLMN where the PCell of the first relay is located.

[0394] As a sub - example of this example, the first PLMN is the PLMN where the serving cell of the first relay is located.

[0395] As a sub - embodiment of this embodiment, the first PLMN is the PLMN to which the cell where the first relay resides belongs.

[0396] As a sub - embodiment of this embodiment, the first PLMN is the PLMN to which the cell where the first node resides belongs.

[0397] As an embodiment, the first node has been registered in the SNPN.

[0398] As an embodiment, transitioning from the first state to the connected mode is or includes starting to transition from the first state to the connected mode.

[0399] As an embodiment, transitioning from the first state to the connected mode is or includes having transitioned from the first state to the connected mode.

[0400] As an embodiment, the phrase "transitioning from the first state to any cell selection state" is or includes starting to transition from the first state to any cell selection state.

[0401] As an embodiment, the phrase "transitioning from the first state to any cell selection state" is or includes having transitioned from the first state to the any cell selection state.

[0402] As an embodiment, the first state is the normal camping state.

[0403] As a sub - embodiment of this embodiment, the first set of conditions includes the condition of discovering a suitable cell.

[0404] As an embodiment, the first set of conditions includes the condition of discovering a suitable cell.

[0405] As an embodiment, the first state is a state other than normal camping.

[0406] As an embodiment, the first state can be transitioned to the normal camping state, and / or the normal camping state can be transitioned to the first state.

[0407] As an embodiment, the first quality criterion in this application is the S criterion.

[0408] As an embodiment, the first quality criterion in this application is:

[0409] Srxlev > 0 and Squal > 0

[0410] Wherein Srxlev is the cell selection RX level value, with the unit of dB; Squal is the cell selection quality value, with the unit of dB.

[0411] As a sub - embodiment of this embodiment:

[0412] Srxlev = Q rxlevmeas – (Q rxlevmin + Q rxlevminoffset ) – P compensation - Qoffset temp

[0413] Squal = Q qualmeas – (Q qualmin + Q qualminoffset ) - Qoffset temp

[0414] In the above two formulas, Q rxlevmeas is the measured cell RX level value, that is, RSRP (Reference Signal Receiving Power); Q qualmeas is the measured cell quality value, that is, RSRQ (Reference Signal Receiving Quality); Other parameters in the above two formulas are either configured by the system, such as through system information, or use default values, such as 0.

[0415] As an embodiment, on the premise of the assumption that L2 relay is not used, a suitable cell is a cell that meets the first quality criterion, that is, a suitable cell needs to meet the first quality criterion; In the case of using L2 relay, for the first node that is the L2 U2N remote node, the suitable cell does not need to meet the first quality criterion.

[0416] As a sub - embodiment of this embodiment, the phrase "not using L2 relay" includes not supporting L2 U2N relay.

[0417] As a sub - embodiment of this embodiment, the phrase "not using L2 relay" includes not finding a suitable L2 U2N relay.

[0418] As a sub - embodiment of this embodiment, in the case of using L2 relay, the suitable cell of the first relay is considered as the suitable cell of the first node.

[0419] As a sub - embodiment of this embodiment, the L2 relay is an L2 U2N relay.

[0420] As a sub - embodiment of this embodiment, in the case of using L2 relay, the PCell of the first relay is considered as the suitable cell of the first node.

[0421] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the PCell of the first relay that meets the quality requirements is considered as a suitable cell for the first node.

[0422] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the serving cell of the first relay is considered as a suitable cell for the first node.

[0423] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the serving cell of the first relay that meets the quality requirements is considered as a suitable cell for the first node.

[0424] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: the first relay is a suitable L2 relay, and the first cell is a suitable cell for the first relay.

[0425] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: the first cell is not blocked.

[0426] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: the first cell belongs to the PLMN selected or registered or equivalent by the first node.

[0427] As a sub - embodiment of this embodiment, in the case of using an L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: a criterion other than the first quality criterion.

[0428] As an embodiment, on the premise of the assumption that no L2 relay is used, a suitable cell is a cell that meets the first quality criterion, that is, a suitable cell needs to meet the first quality criterion; in the case of using an L2 relay, for the first node as the L2 U2N remote node, a suitable cell also needs to meet the first quality criterion.

[0429] As an embodiment, in the connected mode, the RRC connection is established through the first relay, or the RRC connection is directly established without passing through a relay.

[0430] As an embodiment, the first node performs cell reselection evaluation in response to meeting at least one condition in the first cell reselection condition set.

[0431] Among them, the first cell reselection condition set includes: triggered internally by the first node, when the information for cell reselection evaluation on the BCCH channel changes, when the first relay fails, when the channel quality of the first radio link is lower than the first threshold; where the first radio link is the radio link between the first node and the first relay.

[0432] As an embodiment, the suitable L2 relay is or includes an unblocked relay.

[0433] As an embodiment, the suitable L2 relay is or includes an L2 U2N relay.

[0434] As an embodiment, the suitable L2 relay is or includes a relay whose resident cell is a suitable cell.

[0435] As an embodiment, the suitable L2 relay is or includes: a relay where the PCell is a suitable cell and the suitable relay is in the RRC connected state.

[0436] As an embodiment, the suitable L2 relay is or includes: a relay where the serving cell is a suitable cell and the suitable relay is in the RRC connected state.

[0437] As an embodiment, the suitable L2 relay is or includes: a relay where the PCell belongs to the PLMN selected or registered by the first node or a PLMN belonging to the equivalent PLMN list, and the suitable relay is in the RRC connected state.

[0438] As an embodiment, the suitable L2 relay is or includes: a relay where the serving cell belongs to the PLMN selected or registered by the first node or a PLMN belonging to the equivalent PLMN list, and the suitable relay is in the non-RRC connected state.

[0439] As an embodiment, the suitable L2 relay is or includes a relay that provides or can provide at least core system information.

[0440] As an embodiment, the suitable L2 relay is or includes a relay that provides or can provide, for example, by forwarding, the system information in the first system information set.

[0441] As an embodiment, the suitable L2 relay is or includes a relay that meets the QoS requirements.

[0442] As an embodiment, the suitable L2 relay is or includes a relay that complies with the NAS layer requirements.

[0443] As an example, the suitable L2 relay is or includes: the indicated RSC is a relay that meets the L2 relay requirements.

[0444] As a sub - example of this example, the Relay Service Code (RSC) is used for 5G ProSe UE - to - Network (U2N) relay discovery and is used to indicate the connection services provided by the 5G ProSe U2N relay; the 5G ProSe U2N relay and the 5G ProSe U2N remote UE can determine whether to support layer 2 or layer 3 relay from the RSC.

[0445] As an example, the suitable L2 relay is or includes: a relay that has established a PC5 connection.

[0446] As an example, the suitable L2 relay is or includes: a relay that has established a Direct link.

[0447] As a sub - example of this example, the PC5 - S message used for establishing the Direct link includes the RSC.

[0448] As a sub - example of this example, the establishment of the Direct link includes sending a DIRECT_COMMUNICATION_REQUEST message.

[0449] As an example, the suitable L2 relay is or includes: a relay that has received the system information from the suitable L2 relay.

[0450] As an example, the suitable L2 relay is or includes: a relay that has received the system information from the core of the suitable L2 relay.

[0451] As an example, the suitable L2 relay is or includes: a relay to which the first node has indicated information related to receiving paging.

[0452] As an example, the suitable L2 relay is or includes: a relay to which the first node has indicated information related to receiving paging and has received confirmation.

[0453] As an example, the suitable L2 relay is or includes: a relay that has the ability to monitor the paging message of the first node.

[0454] As an example, the suitable L2 relay is or includes: a relay that can monitor the paging message of the first node.

[0455] As an example, the suitable L2 relay is or includes: a relay capable of forwarding network notifications.

[0456] As an example, the suitable L2 relay is or includes: a relay in which no radio link failure has occurred.

[0457] As an example, the suitable L2 relay is or includes: an L2U2N relay in which the measured SL-RSRP and / or SD-RSRP meet certain requirements.

[0458] As a sub-example of this example, the first node performs measurements on candidate relays to obtain the SL-RSRP and / or the SD-RSRP.

[0459] As a sub-example of this example, candidate relays perform measurements on the first section to obtain the SL-RSRP and / or the SD-RSRP.

[0460] As an example, the suitable L2 relay is or includes: an L2U2N relay in which the measured SL-RSRQ and / or SD-RSRQ meet certain requirements.

[0461] As a sub-example of this example, the first node performs measurements on candidate relays to obtain the SL-RSRQ and / or SD-RSRQ.

[0462] As a sub-example of this example, candidate relays perform measurements on the first section to obtain the SL-RSRQ and / or the SD-RSRQ.

[0463] As an example, the suitable L2 relay is or includes: a relay that has not received a direct link release or rejection indication.

[0464] As an example, the suitable L2 relay is or includes: a relay whose direct link therebetween is alive.

[0465] As an example, the suitable L2 relay is or includes: a relay in a normal resident state or a relay in an RRC connected state.

[0466] As an example, the phrase "RRC connection is established" includes establishing an RRC connection.

[0467] As an example, the phrase "RRC connection is established" includes resuming an RRC connection.

[0468] As an example, the phrase "RRC connection is established" includes re - establishing the RRC connection.

[0469] As an example, when the RRC connection is established, the first node enters the RRC connected state.

[0470] As an example, when the RRC connection is established, the first node has an RRC connection with the access network.

[0471] As an example, the behavior of the first relay listening for paging includes registering and receiving paging messages from a PLMN or an SNPN.

[0472] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes initiating a registration process for the PLMN or the SNPN.

[0473] As a sub - example of this example, the registration process includes sending a NAS layer request related to registration.

[0474] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes completing a registration process for the PLMN or the SNPN.

[0475] As a sub - example of this example, the registration process includes sending a NAS layer request related to registration.

[0476] As a sub - example of this example, the registration process includes receiving an allowed response from the NAS layer related to registration.

[0477] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes that after the paging message from the PLMN or the SNPN is sent to the serving cell or the base station, it triggers the serving cell or the base station to send a paging message and / or DCI related to paging over the air interface.

[0478] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes: receiving a paging message sent by a registered PLMN.

[0479] As an example, the phrase "registering and receiving paging messages from a PLMN or an SNPN" includes: receiving a paging message sent by an equivalent PLMN of a registered PLMN.

[0480] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: having executed the NAS layer registration process and received a paging message sent by the PLMN.

[0481] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: being in a registered state and receiving a paging message sent by the PLMN.

[0482] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: being in a registered state for the NAS or the core network and receiving a paging message sent by the PLMN.

[0483] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: receiving a paging message sent by a registered SNPN.

[0484] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: receiving a paging message sent by an equivalent PLMN of a registered SNPN.

[0485] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: having executed the NAS layer registration process and receiving a paging message sent by the SNPN.

[0486] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: being in a registered state and receiving a paging message sent by the SNPN.

[0487] As an example, the phrase "register and receive a paging message from a PLMN or an SNPN" includes: being in a registered state for the NAS or the core network and receiving a paging message sent by the SNPN.

[0488] As an example, the core network and the access network may have their own paging messages. If not specifically emphasized as a paging message from the core network, the PLMN, or the SNPN, the paging message described in this application refers to the paging or paging message on the RAN side.

[0489] As an example, a paging message from a PLMN or an SNPN includes a notification from the PLMN or the SNPN.

[0490] As an example, the first node has been registered in the first PLMN.

[0491] As a sub-embodiment of this embodiment, the first PLMN is any PLMN.

[0492] As a sub-embodiment of this embodiment, the first PLMN is the PLMN where the PCell of the first relay is located.

[0493] As a sub-embodiment of this embodiment, the first PLMN is the PLMN where the service cell of the first relay is located.

[0494] As a sub-embodiment of this embodiment, the first PLMN is the PLMN where the cell where the first relay resides is located.

[0495] As a sub-embodiment of this embodiment, the first PLMN is the PLMN where the cell where the first node resides is located.

[0496] As an embodiment, the first node has been registered in the SNPN.

[0497] As an embodiment, transitioning from the first state to the connection mode is or includes starting to transition from the first state to the connection mode.

[0498] As an embodiment, the transition from the first state to the connection mode is or includes the transition from the first state to the connection mode.

[0499] As an embodiment, the phrase transitioning from the first state to an arbitrary cell selection state is or includes starting to transition from the first state to an arbitrary cell selection state.

[0500] As an embodiment, the phrase “transitioning from the first state to an arbitrary cell selection state” is or includes transitioning from the first state to the arbitrary cell selection state.

[0501] As an embodiment, the first state is the normal resident state.

[0502] As a sub-embodiment of this embodiment, the first condition set includes a condition of finding a suitable cell.

[0503] As an embodiment, the first condition set includes a condition of finding a suitable cell.

[0504] As an embodiment, the first state is a state other than normal residence.

[0505] As an embodiment, the first state may be converted to the normal resident state, and / or the normal mainstream state may be converted to the first state.

[0506] As an embodiment, on the premise of the assumption that L2 relay is not used, a suitable cell is a cell that meets the first quality criterion, that is, a suitable cell needs to meet the first quality criterion; in the case of using L2 relay, for the first node that is an L2 U2N remote node, the suitable cell does not need to meet the first quality criterion.

[0507] As a sub - embodiment of this embodiment, the phrase "not using L2 relay" includes not supporting L2 U2N relay.

[0508] As a sub - embodiment of this embodiment, the phrase "not using L2 relay" includes not finding a suitable L2 U2N relay.

[0509] As a sub - embodiment of this embodiment, in the case of using L2 relay, the suitable cell of the first relay is considered as the suitable cell of the first node.

[0510] As a sub - embodiment of this embodiment, the L2 relay is an L2 U2N relay.

[0511] As a sub - embodiment of this embodiment, in the case of using L2 relay, the PCell of the first relay is considered as the suitable cell of the first node.

[0512] As a sub - embodiment of this embodiment, in the case of using L2 relay, the PCell of the first relay that meets the quality requirements is considered as the suitable cell of the first node.

[0513] As a sub - embodiment of this embodiment, in the case of using L2 relay, the serving cell of the first relay is considered as the suitable cell of the first node.

[0514] As a sub - embodiment of this embodiment, in the case of using L2 relay, the serving cell of the first relay that meets the quality requirements is considered as the suitable cell of the first node.

[0515] As a sub - embodiment of this embodiment, in the case of using L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: the first relay is a suitable L2 relay, and the first cell is a suitable cell of the first relay.

[0516] As a sub - embodiment of this embodiment, in the case of using L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: the first cell is not blocked.

[0517] As a sub - embodiment of this embodiment, in the case of using L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: the first cell belongs to the PLMN selected, registered or equivalent by the first node.

[0518] As a sub - embodiment of this embodiment, in the case of using L2 relay, the first node determines a suitable cell according to a second criterion, and the second criterion includes: a criterion other than the first quality criterion.

[0519] As an embodiment, on the premise of the assumption that L2 relay is not used, a suitable cell is a cell that meets the first quality criterion, that is, a suitable cell needs to meet the first quality criterion; in the case of using L2 relay, for the first node as the L2 U2N remote node, a suitable cell also needs to meet the first quality criterion.

[0520] As an embodiment, in the connection mode, the RRC connection is established through the first relay, or the RRC connection is directly established without passing through a relay.

[0521] As an embodiment, the first node performs cell reselection evaluation in response to meeting at least one condition in the first cell reselection condition set.

[0522] Among them, the first cell reselection condition set includes: triggered internally by the first node, when the information for cell reselection evaluation on the BCCH channel changes, when the first relay fails, when the channel quality of the first radio link is lower than the first threshold; where the first radio link is the radio link between the first node and the first relay.

[0523] As an embodiment, the system information includes at least one of {SIB1, SIB12, MIB}.

[0524] As an embodiment, the first measurement configuration is or includes a configuration related to measurement.

[0525] As an embodiment, the first measurement configuration is or includes a configuration related to measurement reporting.

[0526] As an embodiment, the first measurement configuration is or includes a configuration related to recording measurement results.

[0527] As an embodiment, the first measurement configuration is sent using SRB1.

[0528] As an embodiment, the first measurement configuration is used to record measurement results (logging) in the RRC_IDLE or RRC_INACTIVE state.

[0529] As an example, the first measurement configuration is used to transmit the recorded measurement results for network optimization.

[0530] As an example, the first measurement configuration includes a trace reference.

[0531] As a sub - example of this example, the first node includes the trace reference when reporting the recorded measurement results to the network.

[0532] As an example, the first measurement configuration includes absolute time information (absoluteTimeInfo).

[0533] As a sub - example of this example, the absolute time information includes 48 bits.

[0534] As a sub - example of this example, the format of the absolute time information is YY - MM - DD HH:MM:SS.

[0535] As an example, the first measurement configuration includes a plmn - IdentityList to indicate a PLMN list.

[0536] As an example, the first measurement configuration includes a bt - NameList to indicate the names of Bluetooth beacons, thereby configuring the measurement for Bluetooth.

[0537] As an example, the first measurement configuration includes a wlan - NameList to indicate the names of WLAN APs, thereby configuring the measurement for WLAN.

[0538] As an example, the first measurement configuration includes a sensor - NameList to indicate the names of sensors, thereby configuring the measurement for sensors.

[0539] As an example, the first measurement configuration includes a loggingDuration to indicate the length of time for which the measurement results are recorded, such as recording the measurement results for 20 minutes.

[0540] As an example, the first measurement configuration includes a reporting type, and the reporting type includes periodic and event - triggered.

[0541] As an example, the first measurement configuration is an RRC message.

[0542] As an example, the first measurement configuration is LoggedMeasurementConfiguration.

[0543] As an example, the first measurement configuration is measConfig.

[0544] As an example, the first measurement configuration is measObjectNR.

[0545] As an example, the first area configuration includes areaConfig.

[0546] As an example, the first area configuration includes downlink carrier neighboring frequencies.

[0547] As an example, the first area configuration includes a cell list indicated by a physical cell identity.

[0548] As an example, the first area configuration includes interFreqTargetList.

[0549] As an example, the first area configuration includes a CellGlobalIdList indicated by CGI.

[0550] As a sub - example of this example, the CGI is Cell Global Identity.

[0551] As an example, the first area configuration includes a tracking area code list.

[0552] As an example, the first area configuration includes a tracking area identity list.

[0553] As a sub - example of this example, the tracking area identity includes a PLMN identity and a tracking area code.

[0554] As an example, the first area configuration is AreaConfiguration.

[0555] As an example, the first area configuration is areaConfig.

[0556] As an example, in the connected mode, the meaning that the RRC connection is established is that in the connected mode, the first node is in the RRC connected state.

[0557] As an example, in the connected mode, the meaning that the RRC connection is established is that when entering the connected mode, the first node will initiate an RRC establishment process.

[0558] As an example, in the connected mode, the meaning that the RRC connection is established is that when entering the connected mode, the first node has completed the RRC establishment process.

[0559] As an example, the meaning that the phrase the first candidate state can be directly transitioned to the connected mode is that the transition of the first candidate state to the connected mode does not need to go through other intermediate states.

[0560] As an example, the meaning that the phrase the first candidate state can be directly transitioned to the connected mode is that the transition of the first candidate state to the connected mode does not need to go through the cell reselection evaluation process.

[0561] As an example, the meaning that the phrase the first candidate state can be directly transitioned to the connected mode is that the transition of the first candidate state to the connected mode does not need to go through normal camping, and the first state is not normal camping.

[0562] As an example, the meaning that the phrase the first candidate state can be directly transitioned to the connected mode is that the transition of the first candidate state to the connected mode does not need to go through any cell selection.

[0563] As an example, the meaning that the phrase the first candidate state can be directly transitioned to the connected mode is that the transition of the first candidate state to the connected mode does not need to camp on any cell.

[0564] As an example, the meaning that the phrase the first candidate state can be directly transitioned to the connected mode is that the transition of the first candidate state to the connected mode does not need to go through the cell selection state.

[0565] As an example, the first candidate state is camped normally.

[0566] As an example, the first candidate state is camping normally through a relay.

[0567] As an example, the first candidate state is camping through a relay.

[0568] As an example, the first candidate state is relay connected.

[0569] As an example, the first candidate state is relay camping.

[0570] As an example, the first candidate state is non-direct camping.

[0571] As an example, the first candidate state is non-direct normal camping.

[0572] As an example, the name of the first candidate state includes a relay.

[0573] As an example, the name of the first candidate state includes "non-direct".

[0574] As an example, the name of the first candidate state includes "L2".

[0575] As an example, the name of the first candidate state includes "camp".

[0576] As an example, the name of the first candidate state includes "connected".

[0577] As an example, the name of the first candidate state includes "access".

[0578] As an example, the name of the first candidate state includes "ooc".

[0579] As an example, the name of the first candidate state includes "outofcoverage".

[0580] As an example, the name of the first candidate state includes "second".

[0581] As an example, the first set of transition conditions includes or only includes that the NAS layer indicates the need to establish an RRC connection.

[0582] As an example, the first set of transition conditions includes or only includes leaving the idle or inactive mode.

[0583] As an example, the first set of transition conditions includes or only includes receiving a paging.

[0584] As an example, the first set of transition conditions includes or only includes the expiration of a first specific timer.

[0585] As a sub-example of this example, the first specific timer is or includes T319.

[0586] As a sub-example of this example, the first specific timer is or includes T319a.

[0587] As a sub-example of this example, the first specific timer is or includes T319b.

[0588] As a sub-example of this example, the first specific timer is or includes T329.

[0589] As a sub-example of this example, the first specific timer is or includes T419.

[0590] As an example, the first set of transition conditions includes or only includes a service request.

[0591] As an example, the first set of conversion conditions includes or consists of a registration request.

[0592] As an example, the first set of conversion conditions includes or consists of receiving system information.

[0593] As an example, the first set of conversion conditions includes or consists of performing a measurement result report.

[0594] As an example, the first set of conditions includes finding a suitable cell.

[0595] As an example, the first set of conditions includes not finding a suitable cell.

[0596] As an example, the first set of conditions includes finding a suitable relay.

[0597] As an example, the first set of conditions includes not finding a suitable relay.

[0598] As an example, the first set of conditions includes not camping on a suitable cell.

[0599] As an example, the first set of conditions includes connecting to the network through a relay.

[0600] As an example, the first set of conditions includes connecting to the network through an L2 U2N relay UE.

[0601] As an example, the first set of conditions includes camping on the network through an L2 U2N relay UE.

[0602] As an example, the act of performing measurement result recording includes logging measurement results.

[0603] As an example, the act of performing measurement result recording includes a series of actions.

[0604] As a sub - example of this example, after receiving the first measurement configuration, the first node stores at least part or all of the first measurement configuration in a first variable.

[0605] As a sub - example of this example, after receiving the first measurement configuration, the first node stores at least one field or all fields of the first measurement configuration in a first variable.

[0606] As a sub - example of this example, after receiving the first measurement configuration, the first node stores at least one cell or all cells of the first measurement configuration in a first variable.

[0607] As a sub - embodiment of this embodiment, the first variable is VarLogMeasConfig.

[0608] As a sub - embodiment of this embodiment, when the reporting type in the first variable is periodical, if the first node is in any cell selection state, recording is performed at regular time intervals.

[0609] As a sub - embodiment of this embodiment, when the reporting type in the first variable is periodical, if the first node is in normal residence and the first set of conditions is satisfied, recording is performed at regular time intervals.

[0610] As a sub - embodiment of this embodiment, when the reporting type in the first variable is periodical, if the first node is in the first state, recording is performed at regular time intervals.

[0611] As a sub - embodiment of this embodiment, when the reporting type in the first variable is periodical, if the first node is in the first state and at least one condition in the first set of conditions is satisfied, recording is performed at regular time intervals.

[0612] As a sub - embodiment of this embodiment, when the reporting type in the first variable is periodical, if the first node is in the first state and the current cell belongs to the cells indicated by the first area configuration, recording is performed at regular time intervals.

[0613] As a sub - embodiment of this embodiment, when the reporting type in the first variable is eventTriggered, if the first node is in any cell selection state, recording is performed at regular time intervals.

[0614] As a sub - embodiment of this embodiment, when the reporting type in the first variable is eventTriggered, if the first node is in the first state, recording is performed at regular time intervals.

[0615] As a sub - embodiment of this embodiment, when the reporting type in the first variable is eventTriggered, if the first node is in the first state and the first set of conditions is satisfied, recording is performed at regular time intervals.

[0616] As a sub - embodiment of this embodiment, when the reporting type in the first variable is event - triggered, if the first node is in the first state and no suitable cell is found, recording is performed at regular time intervals.

[0617] As a sub - embodiment of this embodiment, when the reporting type in the first variable is event - triggered, when the first node transitions from an arbitrary cell selection state to normal residence, and the RPLMN of the first node belongs to the plmn - IdentityList in the first variable and the first set of conditions is satisfied, recording is performed.

[0618] As a sub - embodiment of this embodiment, when the reporting type in the first variable is event - triggered, when the first node transitions from an arbitrary cell selection state to the first state, and the RPLMN of the first node belongs to the plmn - IdentityList in the first variable, recording is performed.

[0619] As an embodiment, the meaning that the behavior of performing measurement result recording is independent of the first area configuration is: when the behavior performs measurement result recording, it can be assumed that the first area configuration is not configured.

[0620] As an embodiment, the meaning that the behavior of performing measurement result recording is independent of the first area configuration is: the behavior of performing measurement result recording is the same as that when the first area configuration is not configured.

[0621] As an embodiment, the meaning that the behavior of performing measurement result recording is independent of the first area configuration is: regardless of the content of the first area configuration, the behavior of performing measurement result recording is the same.

[0622] As an embodiment, the meaning that the behavior of performing measurement result recording is independent of the first area configuration is: regardless of the content of the first area configuration, the content recorded by the behavior of performing measurement result recording is the same.

[0623] As an embodiment, the meaning that the behavior of performing measurement result recording is independent of the first area configuration is: measurement result recording is not performed according to the first area configuration.

[0624] As an embodiment, the meaning that the behavior of performing measurement result recording is independent of the first area configuration is: regardless of whether the serving cell of the first node belongs to the area indicated by the first area configuration, the first node performs measurement result recording.

[0625] As an embodiment, in response to receiving the first measurement configuration, the first node stores the first area configuration in a first variable.

[0626] As a sub - embodiment of this embodiment, the first variable is VarLogMeasConfig.

[0627] As an embodiment, the cell in the first measurement configuration in this application refers to both the cell in a message and the corresponding cell with the same name stored in the first variable.

[0628] As an embodiment, the first area configuration in this application refers to both the cell in the first measurement configuration and the corresponding cell with the same name stored in the first variable.

[0629] As an embodiment, the meaning that the sentence determines whether to perform measurement result recording according to the first area configuration based on the first state includes or only includes: determining according to the first state to perform measurement result recording according to the first area configuration, or determining according to the first state not to perform measurement result recording according to the first area configuration.

[0630] As an embodiment, the meaning that the sentence determines whether to perform measurement result recording according to the first area configuration based on the first state is: determining according to the first state whether to perform measurement result recording according to the first area configuration or not.

[0631] As an embodiment, the meaning that the sentence determines whether to perform measurement result recording according to the first area configuration based on the first state is: determining according to the first state whether to perform measurement result recording according to the first area configuration or whether the measurement result recording has nothing to do with the first area configuration.

[0632] As an embodiment, the first state can only be one state in the first state set.

[0633] As an embodiment, the first state is one state in the first state set.

[0634] As an embodiment, the first state is one of all candidate states in the first state set.

[0635] As an embodiment, the first candidate state is the camped normally state, and the first condition set includes that the quality of the cell where the first node camps does not meet the first quality criterion.

[0636] As a sub - embodiment of this embodiment, the first set of conditions only includes that the quality of the cell where the first node resides does not meet the first quality criterion.

[0637] As a sub - embodiment of this embodiment, the first quality criterion is the S criterion.

[0638] As a sub - embodiment of this embodiment, a suitable cell is a cell that meets the first quality criterion.

[0639] As a sub - embodiment of this embodiment, in the case of using a direct path, a suitable cell is a cell that meets the first quality criterion.

[0640] As a sub - embodiment of this embodiment, when connecting cells without using a relay, a suitable cell is a cell that meets the first quality criterion.

[0641] As a sub - embodiment of this embodiment, that the quality of a serving cell meets the first quality criterion means that the quality of a serving cell is higher than a certain threshold.

[0642] As a sub - embodiment of this embodiment, that the quality of a serving cell meets the first quality criterion means that the measurement result for the serving cell is higher than a certain threshold.

[0643] As a sub - embodiment of this embodiment, that the quality of a serving cell meets the first quality criterion means that the RSRP measurement result for the serving cell is higher than a certain threshold.

[0644] As a sub - embodiment of this embodiment, the cell where the first node resides is a suitable cell.

[0645] As a sub - embodiment of this embodiment, the cell where the first node resides is not a suitable cell.

[0646] As a sub - embodiment of this embodiment, the cell where the first node resides is a suitable cell for the first relay.

[0647] As a sub - embodiment of this embodiment, the cell where the first node resides is a serving cell of the first relay.

[0648] As a sub - embodiment of this embodiment, the cell where the first node resides is a serving cell of the first relay and the first relay is in a non - RRC connected state.

[0649] As a sub - embodiment of this embodiment, the cell where the first node resides is the primary cell of the first relay and the first relay is in an RRC connected state.

[0650] As a sub - embodiment of this embodiment, the cell in which the first node resides is the cell in which it camps through the first relay.

[0651] As a sub - embodiment of this embodiment, the cell in which the first relay camps is the camping cell of the first node.

[0652] As a sub - embodiment of this embodiment, the camping cell of the first relay is the camping cell of the first node.

[0653] As a sub - embodiment of this embodiment, the first node executes the first set of operations on the cell in which the first node resides in the first state.

[0654] As an embodiment, the first candidate state is a state other than the normal camping state (camped normally), and the first set of conditions includes or only includes that the quality of the cell in which the first node camps does not meet the first quality criterion.

[0655] As an embodiment, the first candidate state is a state other than the normal camping state (camped normally). When any condition in the first set of conditions is not met, the first node performs measurement result recording according to the first area configuration.

[0656] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes that the quality of the cell in which the first node camps does not meet the first quality criterion.

[0657] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes that the first candidate state is related to the relay.

[0658] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes that the name of the first candidate state includes "relay".

[0659] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes that the first candidate state is not normal camping.

[0660] As a sub - embodiment of this embodiment, the first state is the first candidate state.

[0661] As a sub - embodiment of this embodiment, the quality of the cell in which the first node camps does not meet the first quality criterion.

[0662] As a sub - embodiment of this embodiment, the quality of the cell in which the first node camps meets the first quality criterion.

[0663] As a sub - embodiment of this embodiment, the cell where the first node resides refers to the cell served by the first relay.

[0664] As a sub - embodiment of this embodiment, the act of performing measurement result recording according to the first area configuration includes that if the cell where the first node resides is within the area indicated by the first area configuration, the result of the cell where the first node resides is included in the measurement result recording; otherwise, the result of the cell where the first node resides is not included in the measurement result recording.

[0665] As an embodiment, the first measurement configuration includes the identity of the first relay.

[0666] As a sub - embodiment of this embodiment, the identity of the first relay is a Layer - 2 ID.

[0667] As a sub - embodiment of this embodiment, the identity of the first relay is a link - layer identity.

[0668] As a sub - embodiment of this embodiment, the first set of conditions is or includes that the first candidate state is a state related to the relay.

[0669] As a sub - embodiment of this embodiment, the first set of conditions is or includes that the first candidate state is normal residence.

[0670] As a sub - embodiment of this embodiment, the first set of conditions is or includes that the first candidate state is a state unrelated to the relay.

[0671] As a sub - embodiment of this embodiment, the first set of conditions is or includes that the first candidate state is not normal residence.

[0672] As a sub - embodiment of this embodiment, the act of performing measurement result recording according to the first area configuration includes that when the first relay is indicated by the first measurement configuration, the first relay is considered to belong to the first area, and the measurement result of the first relay or the measurement result of at least one serving cell of the first relay is included in the measurement result recording.

[0673] As a sub - embodiment of this embodiment, the act of performing measurement result recording according to the first area configuration includes that when the first relay is not indicated by the first measurement configuration, the first relay is considered not to belong to the first area, and the measurement result of the first relay is not included in the measurement result recording.

[0674] As a sub - embodiment of this embodiment, the act of performing measurement result recording according to the first area configuration includes: when the first relay is not indicated by the first measurement configuration, the first relay is considered not to belong to the first area, and the measurement result of the serving cell of the first relay is not included in the measurement result record.

[0675] As an embodiment, the first set of conditions includes or only includes that the first candidate state is related to the relay.

[0676] As an embodiment, the first set of conditions includes or only includes that the first candidate state is a state other than normal residence.

[0677] As an embodiment, the second candidate state is not normal residence.

[0678] As an embodiment, the second candidate state is residence through the relay.

[0679] As an embodiment, the second candidate state is normal residence through the relay.

[0680] As an embodiment, the second candidate state is a state related to the relay.

[0681] As an embodiment, the second candidate state is the first candidate state.

[0682] As a sub - embodiment of this embodiment, the first set of states only includes one element, and the one element is that the first candidate state is also the second candidate state.

[0683] As an embodiment, the second candidate state is the same candidate state as the first candidate state.

[0684] As a sub - embodiment of this embodiment, the first set of states only includes one element, and the one element is that the first candidate state is also the second candidate state.

[0685] As an embodiment, the first set of states includes the second candidate state; in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connected mode; the second candidate state is a state other than normal residence;

[0686] The act that the first state is used to determine whether to record the measurement result according to the first area configuration includes: when the first state is the second candidate state, perform measurement result recording according to the first area configuration.

[0687] As a sub - embodiment of this embodiment, the second candidate state is residence through the relay.

[0688] As a sub - embodiment of this embodiment, the second candidate state is a relay connection.

[0689] As a sub - embodiment of this embodiment, the second candidate state is a relay residence.

[0690] As a sub - embodiment of this embodiment, the second candidate state is a non - direct residence.

[0691] As a sub - embodiment of this embodiment, the second candidate state is a non - direct normal residence.

[0692] As a sub - embodiment of this embodiment, the name of the second candidate state includes "relay".

[0693] As a sub - embodiment of this embodiment, the name of the second candidate state includes "non - direct".

[0694] As a sub - embodiment of this embodiment, the name of the second candidate state includes "L2".

[0695] As a sub - embodiment of this embodiment, the name of the second candidate state includes "camp".

[0696] As a sub - embodiment of this embodiment, the name of the second candidate state includes "connection".

[0697] As a sub - embodiment of this embodiment, the name of the second candidate state includes "access".

[0698] As a sub - embodiment of this embodiment, the second candidate state is different from the first candidate state.

[0699] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state.

[0700] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state and the second candidate state and the first candidate state are not in normal residence.

[0701] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes that the NAS layer indicates that an RRC connection needs to be established.

[0702] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes leaving the idle or inactive mode.

[0703] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes receiving a paging.

[0704] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer.

[0705] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer, and the first specific timer is one of {T319, T319a, T319b, T329, T429}.

[0706] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not need to go through other intermediate states.

[0707] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not go through other intermediate states.

[0708] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes: the first state is the second candidate state.

[0709] As a sub - embodiment of this embodiment, the meaning of the phrase that as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that when the first node is in the second candidate state, if any condition in the second set of conversion conditions is satisfied, the first node directly converts from the second candidate state to the direct mode and the behavior conversion to the direct mode does not go through other intermediate states.

[0710] As a sub - embodiment of this embodiment, the meaning of the phrase that as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that if any condition in the second set of conversion conditions is satisfied, then the second candidate state directly converts to the direct mode.

[0711] As an embodiment, the first set of states includes the second candidate state; as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode; the second candidate state is a state other than normal residence; the sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: the first state is the second candidate state, and the first node records measurement results according to the first area configuration.

[0712] As a sub - embodiment of this embodiment, the second candidate state is through relay residence.

[0713] As a sub - embodiment of this embodiment, the second candidate state is a relay connection.

[0714] As a sub - embodiment of this embodiment, the second candidate state is a relay residence.

[0715] As a sub - embodiment of this embodiment, the second candidate state is a non - direct residence.

[0716] As a sub - embodiment of this embodiment, the second candidate state is a non - direct normal residence.

[0717] As a sub - embodiment of this embodiment, the name of the second candidate state includes "relay".

[0718] As a sub - embodiment of this embodiment, the name of the second candidate state includes "non - direct".

[0719] As a sub - embodiment of this embodiment, the name of the second candidate state includes "L2".

[0720] As a sub - embodiment of this embodiment, the name of the second candidate state includes "camp".

[0721] As a sub - embodiment of this embodiment, the name of the second candidate state includes "connection".

[0722] As a sub - embodiment of this embodiment, the name of the second candidate state includes "access".

[0723] As a sub - embodiment of this embodiment, the second candidate state is different from the first candidate state.

[0724] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state.

[0725] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state and the second candidate state and the first candidate state are not in normal residence.

[0726] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes that the NAS layer indicates that an RRC connection needs to be established.

[0727] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes leaving the idle or inactive mode.

[0728] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes receiving a paging.

[0729] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer.

[0730] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer, and the first specific timer is one of {T319, T319a, T319b, T329, T429}.

[0731] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not need to go through other intermediate states.

[0732] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not go through other intermediate states.

[0733] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes: the first state is the second candidate state.

[0734] As a sub - embodiment of this embodiment, the meaning of the phrase that in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that when the first node is in the second candidate state, if any condition in the second set of conversion conditions is satisfied, the first node directly converts from the second candidate state to the direct mode and the behavior conversion to the direct mode does not go through other intermediate states.

[0735] As a sub - embodiment of this embodiment, the meaning of the phrase that in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that if any condition in the second set of conversion conditions is satisfied, then the second candidate state directly converts to the direct mode.

[0736] As an embodiment, the first set of states includes the second candidate state; in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode;

[0737] The sentence that the first state is used to determine whether to record the measurement result according to the first area configuration includes: when the first state is the second candidate state, perform the measurement result recording and the behavior of performing the measurement result recording has nothing to do with the first area configuration.

[0738] As a sub - embodiment of this embodiment, the second candidate state is through relay residence.

[0739] As a sub - embodiment of this embodiment, the second candidate state is relay connection.

[0740] As a sub - embodiment of this embodiment, the second candidate state is relay residence.

[0741] As a sub - embodiment of this embodiment, the second candidate state is non - direct residence.

[0742] As a sub - embodiment of this embodiment, the second candidate state is non - direct normal residence.

[0743] As a sub - embodiment of this embodiment, the name of the second candidate state includes'relay'.

[0744] As a sub - embodiment of this embodiment, the name of the second candidate state includes 'non - direct'.

[0745] As a sub - embodiment of this embodiment, the name of the second candidate state includes 'L2'.

[0746] As a sub - embodiment of this embodiment, the name of the second candidate state includes 'camp'.

[0747] As a sub - embodiment of this embodiment, the name of the second candidate state includes 'connection'.

[0748] As a sub - embodiment of this embodiment, the name of the second candidate state includes 'access'.

[0749] As a sub - embodiment of this embodiment, the second candidate state is different from the first candidate state.

[0750] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state.

[0751] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state and the second candidate state and the first candidate state are not normal residence.

[0752] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes that the NAS layer indicates that an RRC connection needs to be established.

[0753] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes leaving the idle or inactive mode.

[0754] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes receiving a paging.

[0755] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer.

[0756] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer, and the first specific timer is one of {T319, T319a, T319b, T329, T429}.

[0757] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not need to go through other intermediate states.

[0758] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not go through other intermediate states.

[0759] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes: the first state is the second candidate state.

[0760] As a sub - embodiment of this embodiment, the meaning of the phrase that as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that when the first node is in the second candidate state, if any condition in the second set of conversion conditions is satisfied, the first node directly converts from the second candidate state to the direct mode and the behavior converts to the direct mode without going through other intermediate states.

[0761] As a sub - embodiment of this embodiment, the meaning of the phrase that as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that if any condition in the second set of conversion conditions is satisfied, then the second candidate state directly converts to the direct mode.

[0762] As an embodiment, the first set of states includes the second candidate state; as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode;

[0763] The sentence that the first state is used to determine whether to record the measurement result according to the first area configuration includes: the first state is the second candidate state, the first node performs measurement result recording, and the behavior performs measurement result recording regardless of the first area configuration.

[0764] As a sub - embodiment of this embodiment, the second candidate state is through relay residence.

[0765] As a sub - embodiment of this embodiment, the second candidate state is relay connection.

[0766] As a sub - embodiment of this embodiment, the second candidate state is relay residence.

[0767] As a sub - embodiment of this embodiment, the second candidate state is non - direct residence.

[0768] As a sub - embodiment of this embodiment, the second candidate state is non - direct normal residence.

[0769] As a sub - embodiment of this embodiment, the name of the second candidate state includes "relay".

[0770] As a sub - embodiment of this embodiment, the name of the second candidate state includes "non - direct".

[0771] As a sub - embodiment of this embodiment, the name of the second candidate state includes "L2".

[0772] As a sub - embodiment of this embodiment, the name of the second candidate state includes "camp".

[0773] As a sub - embodiment of this embodiment, the name of the second candidate state includes "connection".

[0774] As a sub - embodiment of this embodiment, the name of the second candidate state includes "access".

[0775] As a sub - embodiment of this embodiment, the second candidate state is different from the first candidate state.

[0776] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state.

[0777] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state and the second candidate state and the first candidate state are not normal residence.

[0778] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes that the NAS layer indicates that an RRC connection needs to be established.

[0779] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes leaving the idle or inactive mode.

[0780] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes receiving a paging.

[0781] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer.

[0782] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer, and the first specific timer is one of {T319, T319a, T319b, T329, T429}.

[0783] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not need to go through other intermediate states.

[0784] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connection mode is that when the second candidate state is converted to the connection mode, it does not go through other intermediate states.

[0785] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes: the first state is the second candidate state.

[0786] As a sub - embodiment of this embodiment, the meaning of the phrase that in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that when the first node is in the second candidate state, if any condition in the second set of conversion conditions is satisfied, the first node directly converts from the second candidate state to the direct mode and the behavior conversion to the direct mode does not go through other intermediate states.

[0787] As a sub - embodiment of this embodiment, the meaning of the phrase that in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode is that if any condition in the second set of conversion conditions is satisfied, then the second candidate state directly converts to the direct mode.

[0788] As an embodiment, the first set of states includes the second candidate state; in response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connection mode;

[0789] The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration;

[0790] Among them, the meaning that the quality of the first cell of the sentence is used to determine whether to perform measurement result recording according to the configuration of the first area is: when the quality of the first cell meets the first quality criterion, measurement result recording is performed according to the configuration of the first area, and when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the configuration of the first area.

[0791] As a sub - embodiment of this embodiment, the second candidate state is through relay residence.

[0792] As a sub - embodiment of this embodiment, the second candidate state is relay connection.

[0793] As a sub - embodiment of this embodiment, the second candidate state is relay residence.

[0794] As a sub - embodiment of this embodiment, the second candidate state is non - direct residence.

[0795] As a sub - embodiment of this embodiment, the second candidate state is non - direct normal residence.

[0796] As a sub - embodiment of this embodiment, the name of the second candidate state includes relay.

[0797] As a sub - embodiment of this embodiment, the name of the second candidate state includes non - direct.

[0798] As a sub - embodiment of this embodiment, the name of the second candidate state includes L2.

[0799] As a sub - embodiment of this embodiment, the name of the second candidate state includes camp.

[0800] As a sub - embodiment of this embodiment, the name of the second candidate state includes connection.

[0801] As a sub - embodiment of this embodiment, the name of the second candidate state includes access.

[0802] As a sub - embodiment of this embodiment, the second candidate state is different from the first candidate state.

[0803] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state.

[0804] As a sub - embodiment of this embodiment, the second candidate state is the same candidate state as the first candidate state and the second candidate state and the first candidate state are not normal residence.

[0805] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes that the NAS layer indicates that an RRC connection needs to be established.

[0806] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes leaving the idle or inactive mode.

[0807] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes receiving a paging.

[0808] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer.

[0809] As a sub - embodiment of this embodiment, the second set of conversion conditions includes or only includes the expiration of a first specific timer, and the first specific timer is one of {T319, T319a, T319b, T329, T429}.

[0810] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connected mode is that when the second candidate state is converted to the connected mode, it does not need to go through other intermediate states.

[0811] As a sub - embodiment of this embodiment, the meaning of the phrase that the second candidate state can be directly converted to the connected mode is that when the second candidate state is converted to the connected mode, it does not go through other intermediate states.

[0812] As a sub - embodiment of this embodiment, the first set of conditions includes or only includes that the first state is the second candidate state.

[0813] As a sub - embodiment of this embodiment, the meaning of the phrase that as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connected mode is that when the first node is in the second candidate state, if any condition in the second set of conversion conditions is satisfied, the first node directly converts from the second candidate state to the direct mode and the behavior conversion to the direct mode does not go through other intermediate states.

[0814] As a sub - embodiment of this embodiment, the meaning of the phrase that as a response to any condition in the second set of conversion conditions being satisfied, the second candidate state can be directly converted to the connected mode is that if any condition in the second set of conversion conditions is satisfied, then the second candidate state is directly converted to the direct mode.

[0815] As a sub - embodiment of this embodiment, the first quality criterion is the S criterion.

[0816] As a sub - embodiment of this embodiment, the cell that meets the first quality criterion is a suitable cell; a suitable cell is a cell that meets the first quality criterion.

[0817] As a sub - embodiment of this embodiment, the first cell is the cell connected to the first relay.

[0818] As a sub - embodiment of this embodiment, the first cell is the serving cell of the first relay.

[0819] As a sub - embodiment of this embodiment, the first cell is the primary cell of the first relay.

[0820] As a sub - embodiment of this embodiment, the first cell is the cell where the first relay resides.

[0821] As a sub - embodiment of this embodiment, the first cell is a neighboring cell of the serving cell of the first relay.

[0822] As a sub - embodiment of this embodiment, the first cell is a neighboring cell of the primary cell of the first relay.

[0823] As a sub - embodiment of this embodiment, the first cell is a neighboring cell or a neighboring frequency cell of the cell where the first relay resides.

[0824] As a sub - embodiment of this embodiment, the first cell is a neighboring cell of the serving cell of the first relay.

[0825] As a sub - embodiment of this embodiment, the first cell is the cell where the first node receives the SIB.

[0826] As a sub - embodiment of this embodiment, the first cell is the cell where the first node receives the paging message.

[0827] As a sub - embodiment of this embodiment, the first cell belongs to the cells indicated by the first area configuration.

[0828] As a sub - embodiment of this embodiment, the first cell belongs to the frequency indicated by the first area configuration.

[0829] As a sub - embodiment of this embodiment, the first cell belongs to the cells indicated by the first area configuration.

[0830] As a sub - embodiment of this embodiment, the first cell belongs to the cells indicated by the first measurement configuration.

[0831] As a sub - embodiment of this embodiment, the first node is outside the coverage of the first cell.

[0832] As a sub - embodiment of this embodiment, the first node is within the coverage of the first cell.

[0833] As an embodiment, the first cell is the serving cell of the first relay. For the first node, the quality of the first cell does not meet the first quality criterion, and the first cell is a suitable cell for the first node.

[0834] As an embodiment, that the sentence determines whether to perform measurement result recording according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in the first condition set is not satisfied, perform measurement result recording according to the first area configuration.

[0835] As an embodiment, the first state set only includes the first candidate state.

[0836] As an embodiment, the first candidate state is a state other than normal residence; the first condition set includes or only includes: the first candidate state is a state other than normal residence.

[0837] As an embodiment, the first candidate state is a state other than normal residence; the first condition set includes or only includes: the first candidate state is a state related to the relay.

[0838] As an embodiment, the first candidate state is a state other than normal residence; the first condition set includes or only includes: the first candidate state is normal residence; that the sentence determines whether to perform measurement result recording according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in the first condition set is not satisfied, perform measurement result recording according to the first area configuration.

[0839] As a sub - embodiment of this embodiment, the measurement result record includes information related to the first relay.

[0840] As an embodiment, that the first state is used to determine whether to record measurement results according to the first area configuration includes: the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration;

[0841] Wherein, that the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration means that: when the quality of the first cell meets the first quality criterion, perform measurement result recording according to the first area configuration; when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the first area configuration.

[0842] As a sub - embodiment of this embodiment, the first condition set includes or only includes: the first candidate state is a state other than the normal residence state.

[0843] As a sub - embodiment of this embodiment, the first condition set includes or only includes: the first candidate state is a state related to relay.

[0844] As a sub - embodiment of this embodiment, the first cell is the serving cell of the first node.

[0845] As a sub - embodiment of this embodiment, the first cell is the cell in which the first node resides.

[0846] As a sub - embodiment of this embodiment, the first cell is the cell measured by the first node.

[0847] As a sub - embodiment of this embodiment, the first cell is the serving cell of the first relay.

[0848] As a sub - embodiment of this embodiment, the first cell is the primary cell of the first relay.

[0849] As a sub - embodiment of this embodiment, the first cell is the cell in which the first relay resides.

[0850] As a sub - embodiment of this embodiment, if the first node is out of Coverage, then the quality of the first cell does not meet the first quality criterion.

[0851] As a sub - embodiment of this embodiment, if the quality of the first cell does not meet the first quality criterion, then the first node is out of Coverage.

[0852] As a sub - embodiment of this embodiment, the behavior of performing measurement result recording includes recording the measurement results for the first cell.

[0853] As an embodiment, T330 is in an operating state.

[0854] As an embodiment, VarLogMeasConfig is not released.

[0855] As an embodiment, the meaning of the phrase "perform measurement result recording according to the first area configuration" is or includes: if a cell belongs to the area indicated by the first area configuration, then perform measurement result recording; otherwise, if a cell does not belong to the cell indicated by the first area configuration, then do not perform measurement result recording.

[0856] As an example, the phrase "perform measurement result recording according to the first area configuration" means or includes: if a cell belongs to the area indicated by the first area configuration, perform measurement result recording; otherwise, if a cell does not belong to the cell indicated by the first area configuration, the measurement result recording performed does not include the cell.

[0857] As an example, the phrase "perform measurement result recording according to the first area configuration" means or includes: if a cell belongs to the area indicated by the first area configuration, perform measurement result recording including the measurement result of the cell; otherwise, if a cell does not belong to the cell indicated by the first area configuration, perform measurement result recording not including the measurement result of the cell.

[0858] As an example, the phrase "perform measurement result recording according to the first area configuration" means or includes: if a cell belongs to the area indicated by the first area configuration, perform measurement result recording including the cell; otherwise, if a cell does not belong to the cell indicated by the first area configuration, perform measurement result recording not including the cell.

[0859] As an example, according to the first area configuration, a cell either belongs to the area indicated by the first area configuration or does not belong to the cell indicated by the first area configuration.

[0860] As an example, the phrase "perform measurement result recording according to the first area configuration" means or includes: if the selected cell belongs to the area indicated by the first area configuration, perform measurement result recording including the measurement result of the selected cell; otherwise, if the selected cell does not belong to the cell indicated by the first area configuration, perform measurement result recording not including the measurement result of the selected cell.

[0861] As an example, the phrase "perform measurement result recording according to the first area configuration" means or includes: the first node is not in the first cell, the first cell is the serving cell of the first relay, the set of first operations performed by the first node in the first state is for the first cell, if the first cell belongs to the area indicated by the first area configuration, perform measurement result recording including the measurement result of the first cell; otherwise, if the first cell does not belong to the cell indicated by the first area configuration, perform measurement result recording not including the measurement result of the first cell.

[0862] As a sub - embodiment of this embodiment, the meaning that the first operation set executed by the first node in the first state is for the first cell is that the paging message monitored by the first node through the first relay comes from the first cell.

[0863] As a sub - embodiment of this embodiment, the meaning of the phrase that the first node is not within the first cell is that the first node is outside the coverage of the first cell.

[0864] As a sub - embodiment of this embodiment, the meaning of the phrase that the first node is not within the first cell is that the quality of the first cell does not meet the first quality criterion.

[0865] As an embodiment, the meaning of or including the phrase of performing measurement result recording according to the first area configuration is: the first node is within the second cell, the first node is not within the first cell, the first cell is the serving cell of the first relay, the first operation set executed by the first node in the first state is for the first cell, and it is determined whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration.

[0866] As a sub - embodiment of this embodiment, the meaning that the first operation set executed by the first node in the first state is for the first cell is that the paging message monitored by the first node through the first relay comes from the first cell.

[0867] As a sub - embodiment of this embodiment, the meaning of the phrase that the first node is not within the first cell is that the first node is outside the coverage of the first cell.

[0868] As a sub - embodiment of this embodiment, the meaning of the phrase that the first node is not within the first cell is that the quality of the first cell does not meet the first quality criterion.

[0869] As a sub - embodiment of this embodiment, the meaning of determining whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration is: if the first cell belongs to the area indicated by the first area configuration, then the measurement result record includes the measurement result of the second cell; otherwise, if the first cell does not belong to the cell indicated by the first area configuration, then the measurement result record does not include the measurement result of the second cell.

[0870] As a sub - embodiment of this embodiment, determining whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration means that: if both the first cell and the second cell belong to the area indicated by the first area configuration, then perform the measurement result record including the measurement result of the second cell; otherwise, if the first cell does not belong to the cell indicated by the first area configuration, then perform the measurement result record not including the measurement result of the second cell.

[0871] As a sub - embodiment of this embodiment, determining whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration means that: if the second cell belongs to the area indicated by the first area configuration, then perform the measurement result record including the measurement result of the second cell; otherwise, if neither the first cell nor the second cell belongs to the cell indicated by the first area configuration, then perform the measurement result record not including the measurement result of the second cell.

[0872] As a sub - embodiment of this embodiment, determining whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration means that: if both the first cell and the second cell belong to the area indicated by the first area configuration, then perform the measurement result record including the measurement result of the second cell; otherwise, if neither the first cell nor the second cell belongs to the cell indicated by the first area configuration, then perform the measurement result record not including the measurement result of the second cell.

[0873] As a sub - embodiment of this embodiment, determining whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration means that: if the first cell belongs to the area indicated by the first area configuration but the second cell does not belong to the area indicated by the first area configuration, then perform the measurement result record including the measurement result of the second cell.

[0874] As a sub - embodiment of this embodiment, determining whether the measurement result record includes the measurement result of the second cell according to whether the first cell belongs to the area indicated by the first area configuration means that: as a sub - embodiment of this embodiment, if the first cell does not belong to the cell indicated by the first area configuration but the second cell belongs to the cell indicated by the first area configuration, then perform the measurement result record not including the measurement result of the second cell.

[0875] As an embodiment, the first state is the state of staying outside any cell.

[0876] As an example, the first relay is a suitable relay.

[0877] As an example, for a sentence to determine whether to record measurement results according to the first area configuration based on the first state includes: when the first state is normal residence and all conditions in the first set of conditions are not met, recording measurement results according to the first area information.

[0878] As an example, in response to receiving the first measurement configuration, the first node stores at least the first area configuration in the first measurement configuration in a first variable.

[0879] As a sub-example of this example, the first variable is VarLogMeasConfig.

[0880] As an example, the first relay is in a normal residence or connection mode.

[0881] Example 2

[0882] Example 2 exemplifies a schematic diagram of a network architecture according to an example of the present application, as shown in the appendix Figure 2 shown. The appendix Figure 2 illustrates the V2X communication architecture under the 5G NR (New Radio), LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) system architectures. The 5G NR or LTE network architecture can be referred to as 5GS (5G System) / EPS (Evolved Packet System), or some other suitable term.

[0883] The V2X communication architecture of Embodiment 2 includes a UE (User Equipment) 201, a UE 241, an NG-RAN (Next Generation Radio Access Network) 202, a 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, a ProSe function 250, and a ProSe application server 230. The V2X communication architecture can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the V2X communication architecture provides packet-switched services. However, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services or other cellular networks. The NG-RAN includes an NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 can also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (Transmitting and Receiving Point), or some other suitable term. The gNB 203 provides an access point to the 5GC / EPC 210 for the UE 201. Examples of the UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to the UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. The gNB 203 is connected to the 5GC / EPC 210 via an S1 / NG interface.The 5GC / EPC 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is a control node that processes signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-corresponding Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services. The ProSe function 250 is a logical function for network-related behaviors required for ProSe (Proximity-based Service); it includes a DPF (Direct Provisioning Function), a direct discovery name management function, an EPC-level Discovery ProSe function, etc. The ProSe application server 230 has functions such as storing EPC ProSe user identifiers, mapping between application-layer user identifiers and EPC ProSe user identifiers, and allocating a ProSe-restricted code suffix pool.

[0884] As an embodiment, the UE 201 and the UE 241 are connected through a PC5 reference point.

[0885] As an embodiment, the ProSe function 250 is respectively connected to the UE 201 and the UE 241 through a PC3 reference point.

[0886] As an embodiment, the ProSe function 250 is connected to the ProSe application server 230 through the PC2 reference point.

[0887] As an embodiment, the ProSe application server 230 is connected to the ProSe applications of the UE201 and the UE241 respectively through the PC1 reference point.

[0888] As an embodiment, the first node in this application is the UE201.

[0889] As an embodiment, the second node in this application is the gNB203.

[0890] As an embodiment, the third node in this application is the UE241.

[0891] As an embodiment, the radio link between the UE201 and the UE241 corresponds to the sidelink (SL) in this application.

[0892] As an embodiment, the radio link from the UE201 to the NR Node B is an uplink.

[0893] As an embodiment, the radio link from the NR Node B to the UE201 is a downlink.

[0894] As an embodiment, the radio link from the UE241 to the NR Node B is an uplink.

[0895] As an embodiment, the radio link from the NR Node B to the UE241 is a downlink.

[0896] As an embodiment, the UE201 supports relay transmission.

[0897] As an embodiment, the UE241 supports relay transmission.

[0898] As an embodiment, the UE201 includes a mobile phone.

[0899] As an embodiment, the UE241 includes a mobile phone.

[0900] As an embodiment, the UE201 is a vehicle including an automobile.

[0901] As an embodiment, the UE241 is a vehicle including an automobile.

[0902] As an embodiment, the gNB203 is a macro cellular base station.

[0903] As an example, the gNB 203 is a Micro Cell base station.

[0904] As an example, the gNB 203 is a Pico Cell base station.

[0905] As an example, the gNB 203 is an aerial platform device.

[0906] As an example, the gNB 203 is a satellite device.

[0907] Example 3

[0908] Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in the appendix Figure 3 as follows. Figure 3 It is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for the first node (UE, gNB or satellite or aircraft in NTN) and the second node (gNB, UE or satellite or aircraft in NTN), or between two UEs, is shown with 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 1 will be referred to as PHY 301 in this document. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first node and the second node and between two UEs through PHY 301. Layer 2 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the second node. 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 handover support for the first node between the second nodes. 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 disordered reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for the handling of the signaling protocol of the PC5 interface. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). For the radio protocol architecture for the first node and the second node in the user plane 350, 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 are generally the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sub-layer 356. The SDAP sub-layer 356 is responsible for the mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown, the first node may have several upper layers above the L2 layer 355. In addition, it also includes a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.). For a UE involved in relay services, its control plane may also include an adaptation sub-layer AP308, and its user plane may also include an adaptation sub-layer AP358. The introduction of the adaptation layer helps lower layers, such as the MAC layer and the RLC layer, to multiplex and / or distinguish data from multiple source UEs. For UE-to-UE communication involving relay services, the adaptation sub-layer may not be included. Additionally, the adaptation sub-layers AP308 and AP358 may also be sub-layers within PDCP304 and PDCP354 respectively. RRC306 can be used to handle RRC signaling on the Uu interface and signaling on the PC5 interface.

[0909] As an example, the Figure 3 radio protocol architecture in is applicable to the first node in this application.

[0910] As an example, the Figure 3 radio protocol architecture in is applicable to the second node in this application.

[0911] As an example, the Figure 3 radio protocol architecture in is applicable to the third node in this application.

[0912] As an example, the first measurement configuration in this application is generated by RRC306.

[0913] As an example, the first measurement report in this application is generated by RRC306.

[0914] Example 4

[0915] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the appendix Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 that communicate with each other in an access network.

[0916] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454, and an antenna 452.

[0917] The second communication device 410 includes a controller / processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418, and an antenna 420.

[0918] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 (Layer-2) layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmit processor 471 performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to different antennas 420.

[0919] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives signals through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any spatial streams destined for the first communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

[0920] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function described at the second communication device 410 in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing, and a multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated spatial streams into multi-carrier / single-carrier symbol streams, and after passing through analog precoding / beamforming operations in the multi-antenna transmit processor 457, provides them to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0921] In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the receive functions described at the first communication device 450 in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the L1 layer functions. A controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. The upper layer data packets from the controller / processor 475 may be provided to the core network.

[0922] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: receives a first measurement configuration, the first measurement configuration including a first area configuration; in a first state, executes a first set of operations; determines whether to record measurement results according to the first area configuration based on the first state; wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, the first set of states including at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, recording the measurement results and the act of recording the measurement results is independent of the first area configuration.

[0923] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving a first measurement configuration, the first measurement configuration including a first area configuration; in a first state, executing a first set of operations; determining whether to record measurement results according to the first area configuration based on the first state; wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, the first set of states including at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, recording the measurement results and the act of recording the measurement results is independent of the first area configuration.

[0924] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: sends a first measurement configuration, the first measurement configuration including a first area configuration; the receiver of the first measurement configuration, in a first state, performs a first set of operations; determines whether to record measurement results according to the first area configuration according to the first state; wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, performing reselection evaluation; the first state is a state when not in an RRC connected state; the first state belongs to a first set of states, the first set of states including at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can be directly transitioned to a connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration according to the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, recording measurement results and the act of recording measurement results has nothing to do with the first area configuration.

[0925] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: sending a first measurement configuration, the first measurement configuration including a first area configuration; the receiver of the first measurement configuration, in a first state, performs a first set of operations; determines whether to record measurement results according to the first area configuration according to the first state; wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, performing reselection evaluation; the first state is a state when not in an RRC connected state; the first state belongs to a first set of states, the first set of states including at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can be directly transitioned to a connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration according to the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, recording measurement results and the act of recording measurement results has nothing to do with the first area configuration.

[0926] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0927] As an example, the second communication device 410 corresponds to the second node in the present application.

[0928] As an example, the first communication device 450 corresponds to the third node in the present application.

[0929] As an example, the first communication device 450 is a UE.

[0930] As an example, the first communication device 450 is a vehicle-mounted terminal.

[0931] As an example, the first communication device 450 is a mobile phone

[0932] As an example, the first communication device 450 is a relay.

[0933] As an example, the second communication device 410 is a base station.

[0934] As an example, the receiver 456 (including the antenna 460), the receiving processor 452, and the controller / processor 490 are used to receive the first measurement configuration in the present application.

[0935] As an example, the transmitter 456 (including the antenna 460), the transmitting processor 455, and the controller / processor 490 are used to send the first measurement report in the present application.

[0936] As an example, the transmitter 416 (including the antenna 420), the transmitting processor 412, and the controller / processor 440 are used to send the first measurement configuration in the present application.

[0937] As an example, the receiver 416 (including the antenna 420), the receiving processor 412, and the controller / processor 440 are used to receive the first measurement report in the present application.

[0938] Example 5

[0939] Embodiment 5 exemplifies a wireless signal transmission flowchart according to an embodiment of the present application, as shown in the appendix Figure 5 shown. In the appendix Figure 5 Among them, U01 corresponds to the first node in the present application, U02 corresponds to the second node in the present application, and U03 corresponds to the first relay in the present application. It should be specifically noted that the order in this example does not limit the signal transmission order and implementation order in the present application, and the steps in F51 are optional.

[0940] For The first node U01, receive a first measurement configuration in step S5101; determine whether to perform measurement result recording according to a first area configuration according to a first state in step S5102; and send a first measurement report in step S5103.

[0941] For The second node U02 , send a first measurement configuration in step S5201; and receive a first measurement report in step S5202.

[0942] In Embodiment 5, the first measurement configuration includes a first area configuration; the first node, in a first state, executes a first set of operations; the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is a state when not in an RRC connected state; the first state belongs to a first set of states, and the first set of states includes at least a first candidate state; in response to any condition in a first set of conversion conditions being satisfied, the first candidate state can directly transition to a connected mode; in the connected mode, an RRC connection is established; in step S5102, determining whether to perform measurement result recording according to the first area configuration according to the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, perform measurement result recording and the act of performing measurement result recording has nothing to do with the first area configuration.

[0943] As an embodiment, the first measurement configuration is directly sent to the first node U01 without passing through a relay.

[0944] As an embodiment, the first measurement configuration is sent to the first node U01 through a relay.

[0945] As an embodiment, the first measurement configuration is sent to the first node U01 through the first relay.

[0946] As an embodiment, the first measurement report is directly sent to the second node U02 without passing through a relay.

[0947] As an embodiment, the first measurement report is sent to the second node U02 through a relay.

[0948] As an embodiment, the first measurement report is sent to the second node U02 through the first relay.

[0949] As an embodiment, the first node U01 is a U2N relay UE.

[0950] As an embodiment, the first node U01 is a U2N remote UE.

[0951] As an example, the first node U01 is an NR ProSe U2N remote UE.

[0952] As an example, the third node U03 is a UE.

[0953] As an example, the third node U03 is an L2 U2N relay UE.

[0954] As an example, the third node U03 is the U2N relay of the first node U01.

[0955] As an example, the third node U03 is the layer 2 relay of the first node U01.

[0956] As an example, the third node U03 is an NR ProSe U2N relay.

[0957] As an example, the third node U03 is a U2N relay UE.

[0958] As an example, the third node U03 provides L2 U2N relay service to the first node U01.

[0959] As an example, when sending the first measurement configuration, the second node U02 is the serving cell of the first node U01.

[0960] As an example, when sending the first measurement configuration, the second node U02 is the primary cell of the first node U01.

[0961] As an example, when sending the first measurement configuration, the second node U02 is the primary cell group of the first node U01.

[0962] As an example, when sending the first measurement configuration, the second node U02 is the base station corresponding to or belonging to the primary cell of the first node U01.

[0963] As an example, when sending the first measurement configuration, the second node U02 is the base station corresponding to or belonging to the primary cell of the third node U03.

[0964] As an example, when sending the first measurement configuration, the second node U02 is the serving cell of the third node U03.

[0965] As an example, when sending the first measurement configuration, the second node U02 has nothing to do with the third node U03.

[0966] As an example, when sending the first measurement configuration, the second node U02 is not the serving cell or the primary cell of the third node U03.

[0967] As an example, when sending the first measurement configuration, the second node U02 is the primary cell of the third node U03.

[0968] As an example, when sending the first measurement configuration, the second node U02 is the primary cell group of the third node U03.

[0969] As an example, when sending the first measurement configuration, the second node U02 is the base station corresponding to or belonging to the primary cell of the third node U03.

[0970] As an example, when receiving the first measurement configuration, the first node U01 and the third node U03 have the same primary cell (PCell).

[0971] As an example, there is an RRC connection between the first node U01 and the third node U03.

[0972] As an example, there is a PC5 connection between the first node U01 and the third node U03.

[0973] As an example, there is an RRC connection between the third node U03 and the second node U02.

[0974] As an example, when receiving the first measurement configuration, there is an RRC connection between the first node U01 and the second node U02.

[0975] As an example, the third node U03 applies the system message of the second node U02.

[0976] As an example, the first node U01 applies the system message forwarded by the third node U03.

[0977] As an example, the first node U01 applies the system message from the second node U02 forwarded by the third node U03.

[0978] As an example, the first node U01 communicates with the second node U02 through an indirect path when receiving the first measurement configuration.

[0979] As an example, the first node U01 communicates with the second node U02 through a direct path when receiving the first measurement configuration.

[0980] As an example, the first node U01 communicates with the third node U03 through a secondary link.

[0981] As an example, the first node U01 and the third node U03 have established a direct link.

[0982] As an example, the first measurement configuration is sent to the first node U01 through the forwarding of the third node U03.

[0983] As a sub - example of this example, the forwarding is L2 forwarding.

[0984] As a sub - example of this example, the third node U03 does not change the PDCP PDU occupied by carrying the first measurement configuration when forwarding the first measurement configuration.

[0985] As an example, the communication interface between the second node U02 and the third node U03 is the Uu interface.

[0986] As an example, the communication interface between the first node U01 and the third node U03 is the PC5 interface.

[0987] As an example, when step S5102 is executed, the second node U02 is not the serving cell of the first node U01.

[0988] As an example, when step S5102 is executed, the first node U01 leaves the RRC connected state.

[0989] As an example, when step S5102 is executed, the first node U01 leaves the connected mode.

[0990] As an example, before step S5102 is executed and after step S5101 is executed, the first node U01 enters the first state.

[0991] As a sub - example of this example, the first node U01 selects the third node U03.

[0992] As a sub - example of this example, the first node U01 selects the third node U03 as a suitable relay.

[0993] As a sub - example of this example, the first node U01 selects the third node U03 as a suitable L2 U2N relay UE.

[0994] As an example, before step S5102 is executed, the first node U01 leaves the RRC connected state.

[0995] As an example, before step S5102 is executed, the first node U01 leaves the connected mode.

[0996] As an example, the first set of operations is for the second node U02.

[0997] As a sub - example of this example, the meaning of the sentence "As an example, the first set of operations is for the second node U02" is that the first node U01 listens for paging from the second node U02 through a first relay.

[0998] As a sub - example of this example, the meaning of the sentence "As an example, the first set of operations is for the second node U02" is that the first node U01 listens for system information from the second node U02 through a first relay.

[0999] As an example, when step S5102 is executed, the second node U02 is a suitable cell for the first node U01.

[1000] As an example, when step S5102 is executed, the second node U02 is not a suitable cell for the first node U01.

[1001] As an example, the first measurement report is generated according to the measurement result record.

[1002] As an example, the first measurement report is triggered by the UEInformationRequest received by the first node U01.

[1003] As an example, the first measurement report is generated according to VarLogMeasReport.

[1004] As an example, the behavior of performing measurement recording includes: recording the measurement result in VarLogMeasReport.

[1005] As an example, the first measurement report includes: logMeasReport.

[1006] As an example, the first measurement report includes the traceReference indicated by the first measurement configuration.

[1007] As an example, the first measurement report includes absoluteTimeStamp.

[1008] As an embodiment, the first measurement report includes traceRecordingSessionRef.

[1009] As an embodiment, the first measurement report includes tce-Id.

[1010] As an embodiment, the first measurement report includes logMeasInfoList.

[1011] As a sub - embodiment of this embodiment, the logMeasInfoList includes at least one LogMeasInfo, and the at least one LogMeasInfo includes at least one of {locationInfo, relativeTimeStamp, servCellIdentity, measurement results of the serving cell, measurement results of neighboring cells, any cell selection detected}.

[1012] As an embodiment, the first node U01 enters the connected mode when sending the first measurement report.

[1013] As an embodiment, the first node U01 enters the RRC connected state when sending the first measurement report.

[1014] As an embodiment, the first measurement report is sent through SRB1.

[1015] As an embodiment, the time interval between the sending of the first measurement report and the receiving of the first measurement configuration does not exceed 48 hours.

[1016] As an embodiment, in response to receiving the first measurement configuration, the first node U01 sets the PLMN identity list in VarLogMeasReport.

[1017] As an embodiment, in response to receiving the first measurement configuration, the first node U01 sets at least one of the received {absoluteTimeInfo, traceReference, traceRecordingSessionRef, tce-Id} in VarLogMeasReport.

[1018] As an embodiment, the first node U01, in response to receiving the first measurement configuration, starts a first timer, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; in response to the first timer being in the running state, measurement results are recorded.

[1019] As a sub - embodiment of this embodiment, the first timer is T330.

[1020] As a sub - embodiment of this embodiment, the first timer is T430.

[1021] As a sub - embodiment of this embodiment, the first timer is T330a.

[1022] As a sub - embodiment of this embodiment, the first timer is T331.

[1023] As a sub - embodiment of this embodiment, the running time of the first timer is x minutes, where x is a positive integer.

[1024] As a sub - embodiment of this embodiment, the first measurement configuration includes loggingDuration, and the first time length is loggingDuration.

[1025] As a sub - embodiment of this embodiment, the expiration of the first timer triggers the first node U01 to release the first variable.

[1026] As a sub - embodiment of this embodiment, the expiration of the first timer triggers the first node U01 to release the first variable; the first variable is VarLogMeasConfig.

[1027] As a sub - embodiment of this embodiment, once the first timer is in the running state, the first node U01 performs measurement result recording or performs measurement result recording according to the first area configuration.

[1028] As an embodiment, the first measurement configuration indicates that the reporting type is event - triggered and the event type is outOfCoverage.

[1029] As a sub - embodiment of this embodiment, when the first node U01 is in the third state, measurement result recording is performed according to the recording period (loggingInterval) indicated by the first measurement configuration.

[1030] As a sub - embodiment of this embodiment, when the first node U01 is in the first state, measurement result recording is performed according to the recording period (loggingInterval) indicated by the first measurement configuration.

[1031] As a sub - embodiment of this embodiment, when the first node U01 is in the any cell selection, measurement result recording is performed according to the recording period (loggingInterval) indicated by the first measurement configuration.

[1032] As a sub - embodiment of this embodiment, when the first node U01 is switched from arbitrary cell selection to the first state, measurement result recording is performed according to the first area configuration.

[1033] As a sub - embodiment of this embodiment, when the first node U01 is switched from arbitrary cell selection to the first state, measurement result recording is performed according to the first area configuration, and the plmn - IdentityList in VarLogMeasReport includes the RPLMN.

[1034] As a sub - embodiment of this embodiment, when the first node U01 is switched from arbitrary cell selection to the first state, measurement result recording is performed according to the first area configuration, the plmn - IdentityList in VarLogMeasReport includes the RPLMN, and the first state is a state other than normal residence.

[1035] As a sub - embodiment of this embodiment, the serving cell of the first relay is not a suitable cell for the first node U01.

[1036] As a sub - embodiment of this embodiment, the first node is outside the coverage of the serving cell of the first relay.

[1037] As a sub - embodiment of this embodiment, the serving cell of the first relay does not meet the first quality criterion for the first node U01.

[1038] As an embodiment, the first node U01 performs measurement result recording and adds first information to the measurement result record, where the first information is used to indicate at least one of {the first state, receiving network information through a relay, being outside the coverage of the first cell, the first relay}.

[1039] As a sub - embodiment of this embodiment, the status variable VarLogMeasReport includes at least one of {the first state, receiving network information through a relay, being outside the coverage of the first cell, the first relay}.

[1040] As a sub - embodiment of this embodiment, the sentence adding first information to the measurement result record includes: storing the first information in the status variable VarLogMeasReport.

[1041] As a sub - embodiment of this embodiment, the status variable VarLogMeasReport includes that the first state is detected.

[1042] As a sub - embodiment of this embodiment, the state variable VarLogMeasReport includes information related to the relay.

[1043] As a sub - embodiment of this embodiment, the state variable VarLogMeasReport includes the identity of the first relay.

[1044] As a sub - embodiment of this embodiment, the first information explicitly includes at least one of {the first state, receiving network information through the relay, being outside the coverage of the first cell, the first relay}.

[1045] As a sub - embodiment of this embodiment, the first cell is the serving cell of the first relay.

[1046] As a sub - embodiment of this embodiment, the first cell is the primary cell of the first relay.

[1047] As a sub - embodiment of this embodiment, the first measurement report includes the first information.

[1048] As a sub - embodiment of this embodiment, the first measurement report includes second information, which is used to indicate at least one of {the first state, receiving network information through the relay, being outside the coverage of the first cell, the first relay}.

[1049] As an embodiment, the first measurement configuration indicates that the report type is event - triggered and the event type is eventL1.

[1050] As an embodiment, the first measurement configuration indicates that the report type is event - triggered and the event type is the first type, and the first type is a type other than outOfCoverage and eventL1.

[1051] As a sub - embodiment of this embodiment, the first node U01 adds information about the first relay to the measurement result record.

[1052] As a sub - embodiment of this embodiment, the first node U01 adds the measurement result about the first relay to the measurement result record.

[1053] As an embodiment, the first node U01 performs the measurement result record and adds the identity of the first cell to the measurement result record, and the first cell belongs to the area indicated by the first area configuration;

[1054] Wherein, the first cell is the serving cell of the first relay when the first relay is in the non - RRC connected state or the primary cell when the first relay is in the RRC connected state.

[1055] As a sub - embodiment of this embodiment, the meaning of the phrase "adding the identity of the first cell to the measurement result record" includes adding the identity of the first cell to VarLogMeasReport.

[1056] As a sub - embodiment of this embodiment, the meaning of the phrase "adding the identity of the first cell to the measurement result record" includes adding the identity of the first cell to LogMeasInfo.

[1057] As a sub - embodiment of this embodiment, the meaning of the phrase "adding the identity of the first cell to the measurement result record" includes adding the identity of the first cell to measResultServingCell.

[1058] As a sub - embodiment of this embodiment, the meaning of the phrase "adding the identity of the first cell to the measurement result record" includes adding the identity of the first cell to measResultNeighCells.

[1059] As a sub - embodiment of this embodiment, the meaning of the phrase "adding the identity of the first cell to the measurement result record" includes adding the identity of the first cell to measResultRelay.

[1060] As a sub - embodiment of this embodiment, the first node U01 adds the identity of the first relay to the measurement result record.

[1061] As a sub - embodiment of this embodiment, the first node U01 adds the Layer - 2 ID of the first relay to the measurement result record.

[1062] As a sub - embodiment of this embodiment, the first node U01 indicates in the measurement result record that the first cell is connected through a relay.

[1063] As a sub - embodiment of this embodiment, the first node U01 indicates in the first measurement report that the first cell is connected through a relay.

[1064] As an embodiment, the first state is a state of being outside coverage and connected to the network through a relay.

[1065] As an embodiment, the first state supports services other than emergency services.

[1066] As an embodiment, the quality of the first cell does not meet the first quality criterion.

[1067] As an embodiment, the quality of the first cell meets the first quality criterion.

[1068] As an example, the first node adds the measurement result of the first cell to the measurement result record.

[1069] As an example, the measurement result record does not include the measurement result of the first cell.

[1070] As an example, the measurement result record includes second information, which is used to indicate that the first cell is out of coverage.

[1071] As an example, the measurement result record includes second information, which is used to indicate that the first cell does not meet the first quality criterion.

[1072] As an example, the measurement result record includes second information, and the second information includes outOfCoverage.

[1073] As an example, the first node U01 adds the first measurement result of the first cell to the measurement result record, and the first status is used to determine whether the first measurement result is added to measResultServingCell or measResultNeighCells.

[1074] As a sub - example of this example, the first cell is the serving cell of the first relay.

[1075] As a sub - example of this example, the first cell is a suitable cell for the first relay.

[1076] As a sub - example of this example, the first cell is the resident cell of the first relay.

[1077] As an example, the first node U01 adds the first measurement result of the first cell to the measurement result record, and whether the first cell meets the first quality criterion is used to determine whether the first measurement result is added to measResultServingCell or measResultNeighCells.

[1078] As a sub - example of this example, the first cell is the serving cell of the first relay.

[1079] As a sub - example of this example, the first cell is a suitable cell for the first relay.

[1080] As a sub - example of this example, the first cell is the resident cell of the first relay.

[1081] As an embodiment, the first node U01 adds the first measurement result of the first cell to the measurement result record, and the measurement result of the first cell is added to an item other than measResultServingCell and measResultNeighCells.

[1082] As a sub - embodiment of this embodiment, the first cell is the serving cell of the first relay.

[1083] As a sub - embodiment of this embodiment, the first cell is a suitable cell for the first relay.

[1084] As a sub - embodiment of this embodiment, the first cell is the resident cell of the first relay.

[1085] Example 6

[1086] Embodiment 6 exemplifies a schematic diagram of an area according to an embodiment of the present application, as shown in the appendix Figure 6 as follows.

[1087] The appendix Figure 6 includes (a) and (b) for two scenarios respectively.

[1088] In (a) of the appendix Figure 6 the first node receives information from the gNB through the first relay, the first cell is the serving cell of the first relay, and the first node is within the coverage of the first cell.

[1089] As an embodiment, in (a) of the appendix Figure 6 the quality of the first cell meets the first quality criterion.

[1090] As an embodiment, in (a) of the appendix Figure 6 the first cell is the primary cell of the first relay.

[1091] As an embodiment, in (a) of the appendix Figure 6 the first node is in the first state.

[1092] As an embodiment, in (a) of the appendix Figure 6 the first relay is a suitable relay.

[1093] As an embodiment, in (a) of the appendix Figure 6 the first cell is a suitable cell for the first relay.

[1094] As an embodiment, in (a) of the appendix Figure 6In (a) thereof, the first node performs measurement result recording based on whether the first cell is in the area indicated by the first area configuration.

[1095] As an embodiment, in the appendix Figure 6 In (a) thereof, when the first state is a state that can be directly converted to the connected mode, the first node performs measurement result recording based on whether the first cell is in the area indicated by the first area configuration.

[1096] As an embodiment, in the appendix Figure 6 In (a) thereof, when the first state is a state related to relay, the first node performs measurement result recording based on whether the first cell is in the area indicated by the first area configuration.

[1097] As an embodiment, in the appendix Figure 6 In (a) thereof, when the first state is a state related to relay, the first node performs measurement result recording based on whether the first cell is in the area indicated by the first area configuration, and the first state is not normal residence.

[1098] As an embodiment, in the appendix Figure 6 In (a) thereof, the first set of conditions is or includes: the first state is a state related to relay.

[1099] As an embodiment, in the appendix Figure 6 In (a) thereof, the first set of conditions is or includes: the first state is not normal residence but can be directly converted to the connected mode.

[1100] As an embodiment, in the appendix Figure 6 In (a) thereof, the first set of conditions is or includes: the first state is not normal residence nor resident in any cell, but can be directly converted to the connected mode.

[1101] In the appendix Figure 6 In (b) thereof, the first node receives information of the gNB through the first relay, the first cell is the serving cell of the first relay, and the first node is not within the coverage of the first cell; the first cell is a cell within area B; the first node is in area A.

[1102] As an embodiment, the appendix Figure 6 In (b), area B only includes the first cell.

[1103] As an embodiment, the appendix Figure 6 In (b), area B includes the first cell and other cells.

[1104] As an embodiment, the appendix Figure 6The area A in (b) is a small cell.

[1105] As an example, attach Figure 6 The area A in (b) has no coverage of any small cell.

[1106] As an example, attach Figure 6 In (b), the sentence determining whether to perform measurement result recording according to the first area configuration based on the first state includes: the first node performs measurement result recording for the small cells in area A according to whether the first small cell belongs to the area indicated by the first area configuration.

[1107] As an example, attach Figure 6 In (b), the sentence determining whether to perform measurement result recording according to the first area configuration based on the first state includes: the first node performing measurement result recording for the small cells in area A has nothing to do with whether the first small cell belongs to the area indicated by the first area configuration.

[1108] As an example, attach Figure 6 In (b), the sentence determining whether to perform measurement result recording according to the first area configuration based on the first state includes: the first node performing measurement result recording for the small cells in area A is related to whether both the first small cell and the small cells in area A belong to the area indicated by the first area configuration.

[1109] As an example, attach Figure 6 In (b), the sentence determining whether to perform measurement result recording according to the first area configuration based on the first state includes: the first node performing measurement result recording for the small cells in area A has nothing to do with whether the first small cell belongs to the area indicated by the first area configuration, but is only related to whether the small cells in area A belong to the area indicated by the first area configuration.

[1110] As an example, attach Figure 6 In (b), the sentence determining whether to perform measurement result recording according to the first area configuration based on the first state includes: whether the small cells in area A are included in the measurement result recording is related to the quality of the small cells in area A and has nothing to do with whether the first small cell belongs to the area indicated by the first area configuration.

[1111] As an example, the meaning of performing measurement result recording for the small cells in area A is to include the measurement results of the small cells in area A in the measurement result recording.

[1112] Example 7

[1113] Embodiment 7 exemplifies a schematic diagram of a protocol stack for relay communication according to an embodiment of the present application, as shown in the appendix Figure 7 as follows

[1114] The appendix Figure 7 The shown protocol stack is applicable to L2 U2N relay communication, and Embodiment 7 is based on Embodiment 3

[1115] The appendix Figure 7 (a) in it corresponds to the user plane protocol stack in L2 U2N relay communication; (b) in the appendix Figure 7 corresponds to the control plane protocol stack in L2 U2N relay communication

[1116] In Embodiment 7, the PC5 interface is the interface between the first node and the first relay, and the protocol entities related to the PC5 interface {PC5 - ADAPT, PC5 - RLC, PC5 - MAC, PC5 - PHY} terminate at the first node and the first relay; the Uu interface is the interface between the UE and the gNB, and the protocol entities of the Uu interface terminate at the UE and the gNB respectively

[1117] As an embodiment, the first relay is a U2N relay UE, and before executing the first signaling, the first relay provides L2 U2N relay services to the first node

[1118] As an embodiment, after executing the first signaling, the first relay no longer provides L2 U2N relay services to the first node

[1119] As an embodiment, both the first node and the first relay are UEs

[1120] As an embodiment, the appendix Figure 7 the first relay in it corresponds to the third node U03 in Embodiment 5

[1121] As an embodiment, the appendix Figure 7 the gNB in it corresponds to the second node of the present application

[1122] As an embodiment, the protocol entities of the Uu interface {Uu - ADAPT, Uu - RLC, Uu - MAC, Uu - PHY} terminate at the first relay and the gNB

[1123] As an example, in (a), the protocol entities {Uu-SDAP, Uu-PDCP} of the Uu interface terminate at the first node and the gNB. The SDAP PDUs and PDCP PDUs of the first node are forwarded by the first relay, but the first relay does not modify the SDAP PDUs and PDCP PDUs of the first node. That is to say, the SDAP PDUs and PDCP PDUs sent by the first node to the gNB are transparent to the first relay.

[1124] As an example, in (b), the protocol entities {Uu-RRC, Uu-PDCP} of the Uu interface terminate at the first node and the gNB. The RRC PDUs and PDCP PDUs of the first node are forwarded by the first relay, but the first relay does not modify the RRC PDUs and PDCP PDUs sent by the first node. That is to say, the RRC PDUs and PDCP PDUs sent by the first node to the gNB are transparent to the first relay.

[1125] As an example, in (a), PC5-ADAPT corresponds to AP358 in Attachment Figure 3 PC5-RLC corresponds to RLC353 in Attachment Figure 3 PC5-MAC corresponds to MAC352 in Attachment Figure 3 PC5-PHY corresponds to PHY351 in Attachment Figure 3 PHY351.

[1126] As an example, in (a), Uu-SDAP corresponds to SDAP356 in Attachment Figure 3 Uu-PDCP corresponds to PDCP354 in Attachment Figure 3 PDCP354.

[1127] As an example, in (b), PC5-ADAPT corresponds to AP308 in Attachment Figure 3 PC5-RLC corresponds to RLC303 in Attachment Figure 3 PC5-MAC corresponds to MAC302 in Attachment Figure 3 PC5-PHY corresponds to PHY301 in Attachment Figure 3 PHY301.

[1128] As an example, in (b), Uu-RRC corresponds to RRC306 in Attachment Figure 3 Uu-PDCP corresponds to PDCP304 in Attachment Figure 3 PDCP304.

[1129] As an example, Attachment Figure 7A cell of the gNB described in [reference] is the serving cell of the first relay, and the first relay is in the non-RRC connected state.

[1130] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the PCell of the first relay, and the first relay is in the RRC connected state.

[1131] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the resident cell of the first relay.

[1132] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the suitable cell of the first relay.

[1133] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the cell selected by the first relay.

[1134] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the resident cell of the first node.

[1135] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the suitable cell of the first node.

[1136] As an embodiment, append Figure 7 A cell of the gNB described in [reference] is the cell selected by the first node.

[1137] As an embodiment, PC5-ADAPT is only used for specific RBs or messages or data.

[1138] As a sub-embodiment of this embodiment, when the first relay forwards system information, the PC5-ADAPT layer is not used.

[1139] As an embodiment, append Figure 7 In [reference], the communication between the first node and the gNB uses a non-direct path.

[1140] As an embodiment, the first signaling is generated by the Uu-RRC of the gNB in Figure 7 (b) and received by the Uu-RRC of the first node.

[1141] As an embodiment, the first signaling is transparent to the first relay.

[1142] As an embodiment, when using a non-direct path, the Uu-PDCP of the first node is associated with the PC5-RLC, or is associated with the PC5-RLC through the PC5-ADAPT.

[1143] As an embodiment, when using a direct path, the first node will establish Uu-RLC, and the Uu-PDCP of the first node is associated with the Uu-RLC.

[1144] As a sub-embodiment of this embodiment, after switching to the direct path, the first node releases the PC5-RLC.

[1145] As a sub-embodiment of this embodiment, after switching to the direct path, the first node releases the PC5-ADAPT.

[1146] As a sub-embodiment of this embodiment, after switching to the direct path, the first node releases the PC5-MAC and PC5-PHY.

[1147] As a sub-embodiment of this embodiment, after switching to the direct path, the first node no longer uses the PC5-ADAPT.

[1148] As a sub-embodiment of this embodiment, after switching to the direct path, there is no other protocol layer between the Uu-PDCP and the Uu-RLC of the first node.

[1149] Example 8

[1150] Embodiment 8 exemplifies a schematic diagram of state transition according to an embodiment of the present application, as shown in the appendix Figure 8 as follows.

[1151] In the appendix Figure 8 the dashed line indicates that the state transition is optional, or the state transition needs to go through other intermediate states such as cell selection and / or L2 U2N relay selection.

[1152] As an embodiment, the first state is normal residence.

[1153] As an embodiment, the first state is not normal residence.

[1154] As an embodiment, the second state is the connected mode.

[1155] As an embodiment, the condition for entering the third state includes that no suitable cell is found and no suitable relay is found.

[1156] As an embodiment, the third state is random cell selection.

[1157] As an example, in response to finding a suitable relay, the third state is converted to the first state.

[1158] As an example, both the first state and the third state are for non-RRC connected states.

[1159] As an example, after the first node leaves the second state, relay selection is performed, and when a suitable relay is found, the first node enters the first state.

[1160] As an example, after the first node leaves the second state, cell selection is performed, and when a suitable relay is found, the first node enters the first state.

[1161] Example 9

[1162] Example 9 exemplifies a schematic diagram of state transition according to an embodiment of the present application, as shown in the appendix Figure 9 as shown.

[1163] In the appendix Figure 9 the dashed line indicates that the state transition is optional, or the state transition needs to go through other intermediate states such as cell selection and / or L2 U2N relay selection.

[1164] As an example, the first state is not normal residence.

[1165] As an example, the second state is the connected mode.

[1166] As an example, the condition for entering the third state includes not finding a suitable cell and not finding a suitable relay.

[1167] As an example, the third state is random cell selection.

[1168] As an example, in response to finding a suitable relay, the third state is converted to the first state.

[1169] As an example, both the first state and the third state are for non-RRC connected states.

[1170] As an example, in response to finding a suitable cell, the first state is converted to normal residence / normal residence state.

[1171] As an example, in response to the quality of the found suitable cell being higher than a certain threshold and / or the quality of the first relay being lower than a certain threshold, the first state is converted to normal residence / normal residence state.

[1172] As an example, when any condition in the first set of conversion conditions is satisfied, the first state is converted to the second state.

[1173] As an example, the first candidate state is not the normal resident state.

[1174] As an example, the first candidate state is the normal resident state.

[1175] As an example, the second candidate state is not the normal resident state.

[1176] As an example, the condition for entering the first state includes the discovery of a suitable relay.

[1177] As an example, the condition for entering the normal resident state includes the discovery of a suitable cell.

[1178] Example 10

[1179] Example 10 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application; as shown in the appendix Figure 10 shown. In the appendix Figure 10 In it, the processing device 1000 in the first node includes a first receiver 1001 and a first transmitter 1002. In Example 10,

[1180] The first receiver 1001 receives a first measurement configuration, and the first measurement configuration includes a first area configuration;

[1181] The first receiver 1001, in the first state, executes a first set of operations; determines whether to record measurement results according to the first area configuration according to the first state;

[1182] Wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is the state when not in the RRC connected state; the first state belongs to a first set of states, and the first set of states includes at least a first candidate state; in response to any condition in the first set of conversion conditions being satisfied, the first candidate state can be directly converted to the connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration according to the first state includes: when the first state is the first candidate state and any condition in the first set of conditions is satisfied, recording measurement results and the behavior of recording measurement results has nothing to do with the first area configuration.

[1183] As an example, the first candidate state is the normal resident state, and the first set of conditions includes that the quality of the cell where the first node resides does not meet the first quality criterion.

[1184] As an example, the first set of states includes a second candidate state; in response to any condition in the second set of transition conditions being satisfied, the second candidate state can be directly transitioned to the connected mode; the second candidate state is a state other than normal residence;

[1185] The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, recording measurement results according to the first area configuration.

[1186] As an example, the first set of states includes a second candidate state; in response to any condition in the second set of transition conditions being satisfied, the second candidate state can be directly transitioned to the connected mode;

[1187] The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, performing measurement result recording and the behavior of performing measurement result recording has nothing to do with the first area configuration.

[1188] As an example, the first set of states includes a second candidate state; in response to any condition in the second set of transition conditions being satisfied, the second candidate state can be directly transitioned to the connected mode;

[1189] The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to record measurement results according to the first area configuration;

[1190] Wherein, the meaning that the quality of the first cell is used to determine whether to record measurement results according to the first area configuration is: when the quality of the first cell meets the first quality criterion, recording measurement results according to the first area configuration, and when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the first area configuration.

[1191] As an example, the first receiver 1001 starts a first timer in response to receiving the first measurement configuration, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; in response to the first timer being in a running state, measurement result recording is performed.

[1192] As an example, the first measurement configuration indicates that the reporting type is event-triggered and the event type is outOfCoverage.

[1193] As an example, the first receiver 1001 performs measurement result recording and adds first information to the measurement result record, where the first information is used to indicate at least one of {the first state, receiving network information through a relay, being out of coverage of the first cell, the first relay}.

[1194] As an example, the first receiver 1001 performs measurement result recording and adds the identity of the first cell to the measurement result record, where the first cell belongs to the area indicated by the first area configuration;

[1195] where the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state.

[1196] As an example, the first transmitter 1002 sends a first measurement report.

[1197] As a sub-example of this example, the first measurement report includes at least partial information in the first measurement configuration.

[1198] As a sub-example of this example, the first measurement report is sent through sidelinkUEinformation.

[1199] As a sub-example of this example, the first measurement report is sent through UEinformationResponse.

[1200] As an example, the first receiver 1002 receives a first measurement configuration, where the first measurement configuration includes a first identity list;

[1201] The first receiver performs a first set of operations in the first state; determines whether to perform measurement result recording according to the first identity list;

[1202] Among them, the first operation set includes: listening for paging through a first relay, listening for a first system information set through the first relay, and performing reselection evaluation; the first state is the state when not in the RRC connected state; the first state belongs to a first state set, and the first state set includes at least a first candidate state; in response to any condition in a first conversion condition set being satisfied, the first candidate state can be directly converted to the connected mode; in the connected mode, an RRC connection is established. Determining whether to perform measurement result recording according to the first identity list includes: when the first identity list includes the identity of the first relay, performing measurement result recording; when the first identity list does not include the identity of the first relay, not performing measurement result recording.

[1203] As a sub - embodiment of this embodiment, the behavior of performing measurement result recording includes quality information of the sidelink.

[1204] As a sub - embodiment of this embodiment, the behavior of performing measurement result recording includes recording quality information of the serving cell of the first relay.

[1205] As a sub - embodiment of this embodiment, the behavior of performing measurement result recording includes recording the identity of the first relay.

[1206] As a sub - embodiment of this embodiment, the behavior of performing measurement result recording includes recording quality information of the serving cell of the first relay, and the quality of the serving cell of the first relay meets a first quality criterion.

[1207] As a sub - embodiment of this embodiment, the behavior of performing measurement result recording includes recording quality information of the serving cell of the first relay, and the quality of the serving cell of the first relay does not meet a first quality criterion.

[1208] As a sub - embodiment of this embodiment, any condition in the first condition set is satisfied.

[1209] As a sub - embodiment of this embodiment, any condition in the first condition set is not satisfied.

[1210] As a sub - embodiment of this embodiment, the first state set only includes the first candidate state.

[1211] As a sub - embodiment of this embodiment, the first state set includes at least the first candidate state and a second candidate state.

[1212] As an embodiment, the first node is a user equipment (UE).

[1213] As an example, the first node is a terminal supporting large time delay differences.

[1214] As an example, the first node is a terminal supporting NTN.

[1215] As an example, the first node is an aircraft.

[1216] As an example, the first node is a U2N remote UE.

[1217] As an example, the first node is a mobile phone.

[1218] As an example, the first node is a vehicle-mounted terminal.

[1219] As an example, the first node is a relay.

[1220] As an example, the first node is a ship.

[1221] As an example, the first node is an Internet of Things terminal.

[1222] As an example, the first node is a terminal of an industrial Internet of Things.

[1223] As an example, the first node is a device supporting low-latency and high-reliability transmission.

[1224] As an example, the first node is a sidelink communication node.

[1225] As an example, the first receiver 1001 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Embodiment 4.

[1226] As an example, the first transmitter 1002 includes at least one of the antenna 452, transmitter 454, transmitting processor 468, multi-antenna transmitting processor 457, controller / processor 459, memory 460, or data source 467 in Embodiment 4.

[1227] Example 11

[1228] Embodiment 11 exemplifies a structural block diagram of a processing device in a second node according to an embodiment of the present application; as shown in the appendix Figure 11 shown. In the appendix Figure 11 In it, the processing device 1100 in the second node includes a second transmitter 1101 and a second receiver 1102. In Embodiment 11,

[1229] A second transmitter 1101 transmits a first measurement configuration, where the first measurement configuration includes a first area configuration;

[1230] The receiver of the first measurement configuration performs a first set of operations in a first state; determines whether to record measurement results according to the first area configuration based on the first state;

[1231] Wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, and the first set of states includes at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; the sentence determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, recording measurement results and the act of recording measurement results has nothing to do with the first area configuration.

[1232] As an embodiment, the first candidate state is a normal resident state, and the first set of conditions includes that the quality of the cell where the first node resides does not meet a first quality criterion.

[1233] As an embodiment, the first set of states includes a second candidate state; in response to any condition in a second set of transition conditions being satisfied, the second candidate state can directly transition to the connected mode; the second candidate state is a state other than normal residence;

[1234] The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, recording measurement results according to the first area configuration.

[1235] As an embodiment, the first set of states includes a second candidate state; in response to any condition in a second set of transition conditions being satisfied, the second candidate state can directly transition to the connected mode;

[1236] The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, recording measurement results and the act of recording measurement results has nothing to do with the first area configuration.

[1237] As an embodiment, the first state set includes a second candidate state; in response to any condition in the second transition condition set being satisfied, the second candidate state can be directly transitioned to the connected mode;

[1238] The use of the first state to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration;

[1239] Among them, the meaning that the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration is: when the quality of the first cell meets the first quality criterion, measurement result recording is performed according to the first area configuration; when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the first area configuration.

[1240] As an embodiment, the first measurement configuration is used to start a first timer, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; the receiver of the first measurement configuration performs measurement result recording when the first timer is in the running state.

[1241] As an embodiment, the first measurement configuration indicates that the reporting type is event-triggered and the event type is outOfCoverage.

[1242] Specifically, measurement results are received, and the measurement results include first information, which is used to indicate at least one of {the first state, receiving network information through a relay, being outside the coverage of the first cell, the first relay}.

[1243] As an embodiment, measurement results are received, and the measurement results include the identity of the first cell, and the first cell belongs to the area indicated by the first area configuration;

[1244] Among them, the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state.

[1245] As an embodiment, measurement results are received, and the measurement results include the identity of the first cell, and the first cell does not belong to the area indicated by the first area configuration;

[1246] Among them, the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state.

[1247] As an embodiment, the second receiver 1102 receives a first measurement report.

[1248] As an example, the second node is a satellite.

[1249] As an example, the second node is an IoT node.

[1250] As an example, the second node is a relay.

[1251] As an example, the second node is a U2N relay UE.

[1252] As an example, the second node is an access point.

[1253] As an example, the second node is a base station.

[1254] As an example, the second transmitter 1101 includes at least one of the antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, and memory 476 in Embodiment 4.

[1255] As an example, the second receiver 1102 includes at least one of the antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, and memory 476 in Embodiment 4.

[1256] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in the form of hardware or in the form of software functional modules. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote control airplanes, aircraft, small airplanes, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, satellite communication devices, vessel communication devices, NTN user equipment and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point), NTN base stations, satellite equipment, flight platform equipment and other wireless communication devices.

[1257] The present invention can be implemented in other specific forms without departing from its core or basic characteristics. Therefore, the presently disclosed embodiments should in any event be considered as illustrative rather than restrictive. The scope of the invention is determined by the appended claims rather than the foregoing description, and all changes within the equivalent meaning and scope thereof are considered to be included therein.

Claims

1. A first node used for wireless communication, wherein, Comprising: A first receiver that receives a first measurement configuration, the first measurement configuration including a first area configuration; The first receiver, in a first state, executes a first set of operations; Determine whether to record measurement results according to the first area configuration based on the first state; Wherein, the first set of operations includes: listening for paging through a first relay, listening for a first set of system information through the first relay, and performing reselection evaluation; the first state is a state when not in the RRC connected state; the first state belongs to a first set of states, the first set of states including at least a first candidate state; in response to any condition in a first set of transition conditions being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established; the sentence of determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first set of conditions is satisfied, record measurement results and the act of recording measurement results has nothing to do with the first area configuration.

2. The first node according to claim 1, wherein: The first candidate state is a normal resident state, and the first set of conditions includes that the quality of the cell where the first node resides does not meet a first quality criterion.

3. The first node according to claim 1, wherein: The first set of states includes a second candidate state; in response to any condition in a second set of transition conditions being satisfied, the second candidate state can directly transition to the connected mode; The second candidate state is a state other than normal residence; The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, record measurement results according to the first area configuration.

4. The first node according to claim 1, wherein: The first set of states includes a second candidate state; in response to any condition in a second set of transition conditions being satisfied, the second candidate state can directly transition to the connected mode; The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, record measurement results and the act of recording measurement results has nothing to do with the first area configuration.

5. The first node according to claim 1, wherein: The first set of states includes a second candidate state; in response to any condition in a second set of transition conditions being satisfied, the second candidate state can directly transition to the connected mode; The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to record measurement results according to the first area configuration; Among them, the meaning that the quality of the first cell of the sentence is used to determine whether to perform measurement result recording according to the first area configuration is: when the quality of the first cell meets the first quality criterion, measurement result recording is performed according to the first area configuration; when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the first area configuration.

6. The first node according to any one of claims 1 to 4, characterized in that The first state of the sentence is used to determine whether to record measurement results according to the first area configuration, including: the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration; Among them, the meaning that the quality of the first cell of the sentence is used to determine whether to perform measurement result recording according to the first area configuration is: when the quality of the first cell meets the first quality criterion, measurement result recording is performed according to the first area configuration; when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the first area configuration.

7. The first node according to claim 6, characterized in that If the quality of the first cell does not meet the first quality criterion, the first node is out of coverage.

8. The first node according to any one of claims 1 to 7, characterized in that, Including: The first receiver, in response to receiving the first measurement configuration, starts a first timer, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; in response to the first timer being in a running state, performs measurement result recording.

9. The first node according to any one of claims 1 to 8, characterized in that The first measurement configuration indicates that the reporting type is event-triggered and the event type is outOfCoverage.

10. The first node according to any one of claims 1 to 9, characterized in that, Including: The first receiver performs measurement result recording and adds the identity of the first cell to the measurement result recording, and the first cell belongs to the area indicated by the first area configuration; Among them, the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state.

11. The first node according to any one of claims 1 to 10, characterized in that The first measurement configuration is used to perform measurement result recording (logging) in the RRC_IDLE or RRC_INACTIVE state.

12. The first node according to any one of claims 1 to 11, characterized in that The first set of conditions includes connecting the network through an L2 U2N (Layer-2 UE to Network) relay UE.

13. A method in a first node for use in wireless communication, wherein, Including: Receiving a first measurement configuration, the first measurement configuration including a first area configuration; In the first state, performing a first set of operations; Determining whether to perform measurement result recording according to the first area configuration according to the first state; Among them, the first operation set includes: listening for paging through a first relay, listening for a first system information set through the first relay, and performing reselection evaluation; the first state is the state when not in the RRC connected state; the first state belongs to a first state set, and the first state set includes at least a first candidate state; in response to any condition in a first conversion condition set being satisfied, the first candidate state can directly transition to the connected mode; in the connected mode, an RRC connection is established. Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the first candidate state and any condition in a first condition set is satisfied, performing measurement result recording and the act of performing measurement result recording is independent of the first area configuration.

14. The method in the first node according to claim 13, wherein the first candidate state is the normal resident state, and the first condition set includes that the quality of the cell where the first node resides does not meet the first quality criterion.

15. The method in the first node according to claim 13, wherein the first state set includes a second candidate state; in response to any condition in a second conversion condition set being satisfied, the second candidate state can directly transition to the connected mode; the second candidate state is a state other than the normal resident state; Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the second candidate state, performing measurement result recording according to the first area configuration.

16. The method in the first node according to claim 13, wherein the first state set includes a second candidate state; in response to any condition in a second conversion condition set being satisfied, the second candidate state can directly transition to the connected mode; Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the second candidate state, performing measurement result recording and the act of performing measurement result recording is independent of the first area configuration.

17. The method in the first node according to claim 13, wherein the first state set includes a second candidate state; in response to any condition in a second conversion condition set being satisfied, the second candidate state can directly transition to the connected mode; Determining whether to record measurement results according to the first area configuration based on the first state includes: when the first state is the second candidate state, the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration; Among them, the meaning that the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration is: when the quality of the first cell meets the first quality criterion, performing measurement result recording according to the first area configuration, and when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording is independent of the first area configuration.

18. The method in the first node according to any one of claims 13 to 17, characterized in that The sentence that the first state is used to determine whether to record measurement results according to the first area configuration includes: the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration; Wherein, the meaning that the quality of the first cell is used to determine whether to perform measurement result recording according to the first area configuration is: when the quality of the first cell meets the first quality criterion, measurement result recording is performed according to the first area configuration, and when the quality of the first cell does not meet the first quality criterion, the execution of measurement result recording has nothing to do with the first area configuration.

19. The method in the first node according to claim 18, characterized in that If the quality of the first cell does not meet the first quality criterion, the first node is out of coverage. The method in the first node according to any one of claims 13 to 19, characterized in that, Including: In response to receiving the first measurement configuration, start a first timer, the value of the first timer is a first time length, and the first measurement configuration includes the first time length; in response to the first timer being in a running state, perform measurement result recording.

21. The method in the first node according to any one of claims 13 to 20, characterized in that The first measurement configuration indicates that the reporting type is event-triggered and the event type is outOfCoverage.

22. The method in the first node according to any one of claims 13 to 21, characterized in that, Including: Perform measurement result recording and add the identity of the first cell to the measurement result record, where the first cell belongs to the area indicated by the first area configuration; Wherein, the first cell is the serving cell when the first relay is in the non-RRC connected state or the primary cell when the first relay is in the RRC connected state.

23. The method in the first node according to any one of claims 13 to 22, characterized in that The first measurement configuration is used to perform measurement result logging in the RRC_IDLE or RRC_INACTIVE state.

24. The method in the first node according to any one of claims 13 to 23, characterized in that The first set of conditions includes connecting the network through an L2 U2N (Layer-2 UE to Network) relay UE.

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