A method and apparatus for wireless communication

Abstract

This application discloses a method and apparatus for wireless communication, comprising: performing a first operation in response to detecting a wireless link failure; wherein whether the first operation enters an RRC idle state or initiates an RRC connection re-establishment depends on at least whether a first signaling radio bearer is established, the first signaling radio bearer being a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer are not established. The method proposed in this application is beneficial for ensuring the service quality of measurement results transmitted to an external server.

Description

Technical Field

[0001] This application relates to methods and apparatus in cellular wireless communication systems, and more particularly to methods for responding to the detection of a wireless link failure. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the systems. To meet the diverse performance needs of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to research New Radio (NR) (or Fifth Generation, 5G). The NR Work Item (WI) was approved at the 3GPP RAN #75 plenary meeting, initiating standardization work for NR. With the continuous increase in system scenarios and complexity, higher demands are being placed on reducing outage rates, reducing latency, enhancing reliability, improving system stability, increasing service flexibility, and saving power.

[0003] At the 3GPP #107 meeting, the topic of 6G was gradually discussed. As the next-generation communication system, 6G will support richer communication scenarios, add new communication spectrum, and place higher demands on communication performance and reducing device power consumption. In some aspects, the complexity of 6G systems may exceed or far exceed that of 5G. 6G will adopt many new communication technologies, among which artificial intelligence (AI) will be an important component. AI technology relies on a large amount of measurement results, including link quality, to train and optimize AI models, and then uses AI to predict channels, including predicting wireless link quality, mobility, etc., thereby helping to improve system performance in multiple aspects. Good support for new technologies and scenarios depends on collecting accurate and rich measurement data. Therefore, measurement configuration and measurement control also need to be enhanced accordingly, and correspondingly, data collection for AI needs to be supported. AI models can be deployed on the network side, the terminal side, or both. Therefore, AI data collection can be divided into two categories: network-side data collection and terminal-side data collection. Network-side data collection includes data collected by network devices and measurement results reported by terminals. This information is ultimately aggregated by the AI-responsible functional entity within the network for network-side AI model selection, training, or optimization. Terminal-side data collection is performed by the terminal itself. The terminal can report the collected data to an external server, which then trains and manages the AI ​​model. Summary of the Invention

[0004] Researchers have found that for terminals supporting the first signaling radio bearer used to carry measurement results to be sent to an external server, determining whether to enter the RRC idle state or initiate an RRC connection reconstruction after a radio link failure is a problem that needs to be solved.

[0005] To address the problems mentioned above, this application provides a solution.

[0006] It should be noted that, unless otherwise specified, the embodiments and features in any node of this application can be applied to any other node. Unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. Furthermore, the method proposed in this application can also be used to solve other problems in communication, such as those in NR evolution and 6G systems.

[0007] As an example, the interpretation of the terminology in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0008] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS37 series.

[0009] This application discloses a method used in a first node of wireless communication, comprising:

[0010] In response to the detection of a wireless link failure, perform the first operation;

[0011] In this context, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction depends on at least whether a first signaling radio bearer has been established, and the first signaling radio bearer is a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer have not been established.

[0012] As an example, the problem this application aims to solve includes: how to determine whether to enter the RRC idle state or initiate RRC connection reconstruction after a wireless link failure is detected.

[0013] As an example, the advantages of the above method include: after detecting a wireless link failure, if the first signaling radio bearer has been established, the above method helps to ensure the service quality of the measurement results sent to the external server, thereby better supporting AI; if the first signaling radio bearer has not been established, the above method helps to save power and reduce the consumption of network resources.

[0014] Specifically, according to one aspect of this application, the SRB2 of the first node was not established.

[0015] Specifically, according to one aspect of this application, the external server is an OTT (over the top) server.

[0016] Specifically, according to one aspect of this application, the measurement results are for AI data collection.

[0017] Specifically, according to one aspect of this application, the measurement result includes at least the former of a first type of measurement result and a second type of measurement result; only the latter of the first type of measurement result and the second type of measurement result is sent through the container of the first signaling.

[0018] Specifically, according to one aspect of this application, the meaning of whether the first operation is to enter the RRC idle state or to initiate RRC connection re-establishment depending on whether the first signaling radio bearer has been established includes: when the first signaling radio bearer has been established, the first operation is to initiate RRC connection re-establishment; when the first signaling radio bearer has not been established, the first operation is to enter the RRC idle state.

[0019] Specifically, according to one aspect of this application, at least one of SRB4 and SRB5 of the first node has been established.

[0020] Specifically, according to one aspect of this application, a first measurement configuration is received from a first signaling radio bearer, and a second measurement configuration is received from a second signaling radio bearer, wherein the measurement result is based on a measurement using the first measurement configuration and the second measurement configuration.

[0021] Specifically, according to one aspect of this application, a portion of the measurement results is transmitted on the first signaling radio bearer, wherein the portion of the measurement results transmitted on the first signaling radio bearer is regenerated after the RRC connection is re-established;

[0022] The first operation is to initiate an RRC connection reconstruction.

[0023] Specifically, according to one aspect of this application, the first node is a user equipment.

[0024] Specifically, according to one aspect of this application, the first node is an in-vehicle terminal.

[0025] Specifically, according to one aspect of this application, the first node is a mobile phone.

[0026] This application discloses a first node used in wireless communication, comprising:

[0027] The first processor, in response to the detection of a wireless link failure, performs the first operation;

[0028] In this context, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction depends on at least whether a first signaling radio bearer has been established, and the first signaling radio bearer is a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer have not been established.

[0029] As an example, compared with conventional solutions, this application has the following advantages:

[0030] Data collection on the terminal side (UE side) differs from data collection on the network side. Terminal-side data collection is handled by an external server, which is not part of the mobile network. This external server could be part of the internet or physically located close to the mobile network (e.g., in the same equipment room to reduce latency), but logically not part of the mobile network. Terminal-side data includes private data—data not shared with the wireless network. AI models trained using this data can also be private, ensuring flexibility in terminal device implementation and maintaining diversity among different users, terminal manufacturers, and terminal models. To some extent, terminal-side data collection can also be shared with the wireless network, improving network performance and avoiding redundant measurements. In existing technologies, signaling radio bearers are radio bearers between the UE and the RAN, providing transmission services for signaling between the UE's RRC and the network's RRC. Higher-layer signaling, such as non-access stratum signaling, can also be embedded in an RRC message and transmitted using the signaling radio bearer. However, in either case, the content carried by the signaling radio bearer in existing technologies terminates within the network. The signaling radio bearer used to carry measurement results to an external server is not supported by existing technologies. The method proposed in this application better supports this new signaling radio bearer. Furthermore, after a radio link failure, it determines whether to enter an RRC idle state or initiate an RRC connection re-establishment based on whether the first signaling radio bearer has been established. This helps ensure the transmission quality of measurement results to the external server, facilitating timely and effective delivery of measurement results to the external server. Consequently, it better supports data collection on the terminal side and better supports terminal-side AI. This provides possibilities for improving terminal performance in areas such as channel prediction, mobility management, and beam management. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 A schematic diagram illustrating the first operation performed upon detecting a wireless link failure according to an embodiment of this application is shown.

[0033] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0034] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0035] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0036] Figure 5 A flowchart of wireless signal transmission according to an embodiment of this application is shown;

[0037] Figure 6 A schematic diagram illustrating the generation of measurement results according to an embodiment of this application is shown;

[0038] Figure 7 A schematic diagram illustrating the generation of measurement results according to an embodiment of this application is shown;

[0039] Figure 8 A schematic diagram illustrating the generation of new segments according to an embodiment of this application is shown;

[0040] Figure 9 A schematic diagram of an external server according to an embodiment of this application is shown;

[0041] Figure 10 A schematic diagram of a processing apparatus for a first node according to an embodiment of this application is illustrated;

[0042] Figure 11 An illustration based on artificial intelligence or machine learning is provided as an example of an embodiment of this application. Implementation

[0043] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0044] Example 1

[0045] Example 1 illustrates a flowchart of a first operation performed upon detecting a wireless link failure according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. (Attached) Figure 1In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes does not represent the chronological order of the steps they represent.

[0046] In Embodiment 1, the first node in this application detects a wireless link failure in step 101; and performs a first operation in step 102.

[0047] Wherein, the first signaling configures a first measurement gap and a first measurement object; the first measurement object configures a first frequency;

[0048] In this context, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction depends on at least whether a first signaling radio bearer has been established, and the first signaling radio bearer is a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer have not been established.

[0049] As an example, step 101 triggers step 102.

[0050] As an example, step 102 is a response to step 101.

[0051] As an example, the first node is UE (User Equipment).

[0052] As an example, the first node is a terminal.

[0053] As an example, for the MAC sublayer, the higher layers include the RRC sublayer, NAS (non-access stratum) layer, RLC sublayer, and PDCP sublayer.

[0054] Typically, the higher layer above the MAC sublayer when operations are performed is the RRC sublayer.

[0055] As an example, for the RRC sublayer, higher layers include the application layer and the NAS layer.

[0056] Typically, higher layers, such as NAS, are involved in operations performed at the RRC sublayer.

[0057] As an example, for the PDCP sublayer, higher layers include the RRC sublayer and the NAS layer.

[0058] As an example, the lower layers that perform operations in the RRC sublayer include at least one of the physical layer, MAC sublayer, RLC sublayer, and PDCP sublayer.

[0059] As one example, higher-layer signaling includes RRC signaling or non-access stratum signaling.

[0060] As an example, the Access Stratum (AS) includes multiple protocol layers, and details can be found in Example 3.

[0061] As an example, the method proposed in this application is for the RRC connection state.

[0062] As an example, the first node is in RRC connected state.

[0063] As a sub-example of this embodiment, the terminal only detects wireless link failure in RRC connected state.

[0064] As an example, any parameter in this application may be configured by the network or may be generated by the first node according to an internal algorithm, such as randomization.

[0065] As an example, the values ​​of the timers in this application are all limited, not exceeding 2560 milliseconds.

[0066] As an example, the value of the timer is the running time when the timer is not interfered with.

[0067] As an example, the values ​​of any parameters in this application, including but not limited to the values ​​of timers and counters, are limited unless otherwise stated.

[0068] As a sub-implementation of this embodiment, the upper limit of the value of any parameter in this application is 1024 times 65536.

[0069] As a sub-implementation of this embodiment, the upper limit of the value of any parameter in this application is 65536 or 65535.

[0070] As a sub-implementation of this embodiment, the upper limit of the value of any parameter in this application is 1024.

[0071] As a sub-implementation of this embodiment, the upper limit of the value of any parameter in this application is 640 or 320.

[0072] As an example, this application is directed to NR.

[0073] As one example, this application pertains to wireless communication networks that evolve with NR. The NR evolution includes 6G.

[0074] As an example, the serving cell refers to the cell where the UE camps. Performing a cell search includes the UE searching for a suitable cell within 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 a cell; that is, a camped cell is the serving cell for the UE. Camping on a cell in RRC idle or RRC inactive state has the following advantages: it allows the UE to receive system messages from the PLMN or SNPN; after registration, if the UE wishes to establish an RRC connection or continue a suspended RRC connection, the UE can perform initial access on the control channel of the camped cell; the network can page the UE; and the UE can receive ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert System) notifications.

[0075] As an example, for a UE in RRC connected state without CA / DC (carrier aggregation / dual connectivity) configured, there is only one serving cell, including the primary cell. For a UE in RRC connected state with CA / DC configured, the serving cell is used to indicate the set of cells including the special cell (SpCell) and all cells from smaller cells. The primary cell is an MCG (Master Cell Group) cell, operating on the primary frequency. The UE performs the initial connection establishment process or initiates connection reconstruction on the primary cell. For dual connectivity operations, the special cell refers to the PCell (Primary Cell) of the MCG or the PSCell (Primary SCGCell) of the SCG (Secondary Cell Group); if it is not a dual connectivity operation, the special cell refers to the PCell.

[0076] As an example, the frequency at which the SCell (Secondary Cell) operates is the frequency of the cell.

[0077] As an example, the method proposed in this application does not limit whether a DC is configured.

[0078] As an example, the first node may be configured with only MCG.

[0079] As an example, the individual content of an information element is called a field.

[0080] As an example, MR-DC (Multi-Radio Dual Connectivity) refers to dual connectivity between an E-UTRA and an NR node, or dual connectivity between two NR nodes.

[0081] As an example, in MR-DC, the radio access node that provides control plane connection to the core network is the master node, which can be a master eNB, a master ng-eNB, or a master gNB.

[0082] As an example, MCG refers to a group of serving cells associated with the master node in MR-DC, including SpCell, and optionally, one or more SCell.

[0083] As an example, PCell is the SpCell of MCG.

[0084] As an example, PSCell is the SpCell of SCG.

[0085] As an example, in MR-DC, no control plane connection to the core network is provided; instead, the radio access node that provides additional resources to the UE is a slave node. The slave node can be an en-gNB, an ng-eNB, or a gNB.

[0086] As an example, in MR-DC, the set of serving cells associated with a slave node is an SCG (secondary cell group), which includes SpCell and, optionally, one or more SCells.

[0087] As an example, the SpCell is a PCCell or the SpCell is a PSCell.

[0088] As an example, DC is not used when RRC is inactive.

[0089] As an example, CA is typically not used when RRC is inactive.

[0090] As an example, an RRC information block refers to an information element in an RRC message.

[0091] As an example, the SSB may be referred to as SS\PBCH, or SS block.

[0092] As an example, the SSB carries a synchronization signal.

[0093] As an example, the SSB carries the main information block.

[0094] As an example, L1 is Layer-1 or physical layer.

[0095] As an example, L2 is Layer-2.

[0096] As an example, L3 is Layer-3.

[0097] As an example, this application pertains to NR and NR evolution networks, such as 6G networks.

[0098] As an example, an RRC information block may include one or more RRC information blocks.

[0099] As an example, an RRC information block may not include any RRC information blocks, but only include at least one parameter.

[0100] As one embodiment, the radio bearer includes at least a signaling radio bearer and a data radio bearer.

[0101] As an example, the radio bearer is a service or service interface provided by the PDCP sublayer to higher layers.

[0102] As a sub-implementation of this embodiment, the higher layers include one of the RRC sub-layer, NAS, and SDAP layer.

[0103] As an example, the signaling radio bearer is a service or service interface that PDCP provides to higher layers.

[0104] As a sub-implementation of this embodiment, the higher layer includes the RRC sublayer, at least the former in the NAS.

[0105] As an example, the data radio bearer is a service or service interface that PDCP provides to higher layers.

[0106] As a sub-implementation of this embodiment, the higher layer includes the SDAP layer, at least the former in NAS.

[0107] As an example, the RLC bearer is a service or service interface provided by the RLC sublayer to the PDCP sublayer.

[0108] As an example, after the first node establishes an RRC connection with the network, the first node enters the RRC connection state.

[0109] As a sub-example of this embodiment, the network is a Radio Access Network (RAN).

[0110] As an example, when the first node fails to establish an RRC connection with the network, the first node is in an RRC idle state.

[0111] As a sub-example of this embodiment, the network is a Radio Access Network (RAN).

[0112] As an example, when the first node's RRC connection with the network is suspended, the first node enters the RRC inactive state.

[0113] As a sub-example of this embodiment, the network is a Radio Access Network (RAN).

[0114] As an example, different functions are supported in different RRC states.

[0115] As an example, only very limited functionality is supported in non-RRC connected mode.

[0116] As an example, the non-RRC connected state is or includes the RRC idle state.

[0117] As an example, the non-RRC connected state is or includes the RRC inactive state.

[0118] As an example, the first node is not in a limited service mode.

[0119] As an example, the method and scenario proposed in this application are not aimed at emergency operations.

[0120] As an example, the first node supports AI (artificial intelligence).

[0121] As an example, the AI ​​includes machine learning.

[0122] As an example, the first node supports AI training.

[0123] As an example, the first node supports data collection.

[0124] As one example, the data collection includes data collection for AI.

[0125] As an example, the first node indicates to the network that it has the capability to support AI.

[0126] As an example, the first node indicates to the network that it has the capability to support RSRP prediction.

[0127] As an example, the first node indicates to the network that it has the capability to support data collection.

[0128] As an example, the configuration and purpose of the signaling radio bearer are relatively fixed.

[0129] As an example, SRB0 is used to transmit RRC messages on the CCCH (common control channel) logical channel.

[0130] As a sub-example of this embodiment, the RRC messages on the CCCH include RRC establishment request messages, RRC recovery messages, system message request messages, and RRC connection reconstruction request messages.

[0131] As a sub-implementation of this embodiment, the configuration of SRB0 is fixed.

[0132] As a sub-implementation of this embodiment, SRB0 cannot carry higher-level information.

[0133] As a sub-implementation of this embodiment, SRB0 is always established.

[0134] As a sub-implementation of this embodiment, SRB0 is only used in limited scenarios, such as when an RRC is initiated after power-on.

[0135] As an example, the first signaling radio bearer is not SRB0.

[0136] As an example, SRB1 is used for RRC messages and NAS messages before SRB2 is established, wherein SRB1 uses the DCCH (dedicated control channel) logical channel.

[0137] As a sub-example of this embodiment, the NAS message before the SRB2 is established is embedded in the RRC and transmitted.

[0138] As a sub-implementation of this embodiment, SRB1 is established after the RRC connection is established.

[0139] As a sub-implementation of this embodiment, apart from the NAS messages before SRB2 is established, the RRC messages carried by SRB1 terminate at the radio access network.

[0140] As a sub-example of this embodiment, SRB1 does not carry NAS messages except for the NAS messages before SRB2 is established.

[0141] As a sub-implementation of this embodiment, SRB1 does not carry messages sent to external servers.

[0142] As an example, whether SRB1 is established is irrelevant to whether the first operation is entering the RRC idle state or initiating an RRC connection reconstruction.

[0143] As an example, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction does not depend on whether SRB1 has been established.

[0144] As an example, the first signaling radio bearer is not SRB1.

[0145] As an example, SRB3 transmits special RRC messages during dual-connection, and SRB3 uses the DCCH logical channel.

[0146] As an example, the first node in this application may not be configured with dual connections.

[0147] As an example, whether SRB3 is established is irrelevant to whether the first operation is entering the RRC idle state or initiating an RRC connection reconstruction.

[0148] As an example, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction does not depend on whether SRB3 has been established.

[0149] As an example, the first signaling radio bearer is not SRB3.

[0150] As an example, SRB4 is used to transmit RRC messages that include application layer measurement report information, wherein SRB4 uses the DCCH logical channel.

[0151] As an example, SRB5 is used to transmit RRC messages that include application layer measurement report information, wherein SRB5 uses the DCCH logical channel. SRB5 is used only in dual-connectivity scenarios. SRB5 can only be used as configured by the SN of the SCG.

[0152] As an example, the application layer measurement report information is sent to functional entities in the network.

[0153] As an example, the functional entities in the network include functional entities for MDT (Minimization of Drive Tests).

[0154] As an example, the functional entities in the network include those for OAM (Operations, Administration and Management).

[0155] As an example, SRB5 is used to report QoE (quality of experience).

[0156] As an example, the first signaling radio bearer is an SRB.

[0157] As an example, the first signaling radio bearer is not SRB4.

[0158] As an example, the first signaling radio bearer is not SRB5.

[0159] As an example, the first signaling radio bearer is an extended SRB4.

[0160] As an example, the first signaling radio bearer is an extended SRB5.

[0161] As an example, the first signaling radio bearer is SRB6.

[0162] As an example, the first signaling radio bearer is SRB7.

[0163] As an example, the first signaling radio bearer is SRB8.

[0164] As an example, the first signaling radio bearer is SRB9.

[0165] As an example, the first signaling radio bearer is SRB10.

[0166] As an example, the wireless link failure refers to the failure of the wireless link between the first node and the serving cell.

[0167] As an example, the wireless link failure refers to the failure of the wireless link between the first node and the source cell.

[0168] As an example, the wireless link failure refers to the failure of the wireless link between the first node and the target cell.

[0169] As one example, the detection of a wireless link failure includes: a first timer expiring.

[0170] As an example, the first timer is a T310 timer.

[0171] As an example, T310 is initiated upon receiving a first number of first-type instructions from a lower layer.

[0172] As a sub-implementation of this embodiment, the lower layer includes the physical layer.

[0173] As a sub-implementation of this embodiment, the first quantity is configured by the network.

[0174] As a sub-implementation of this embodiment, the first quantity is N310.

[0175] As a sub-implementation of this embodiment, the first type of indication includes an out-of-sync indication.

[0176] As a sub-implementation of this embodiment, timers T300, T301, T304, T311, T316, and T319 are not running.

[0177] As an example, the wireless link failure is for PCell, and the first timer is also for PCell.

[0178] As an example, the wireless link failure is for PSCell, and the first timer is also for PSCell.

[0179] As an example, the physical layer determines whether to send the first type of indication to higher layers by measuring whether the RSRP (reference signal receiving power) of the downlink reference signal is worse than a given quality requirement.

[0180] As an example, the first timer is a T312 timer.

[0181] As an example, T312 is activated when a configured measurement report is sent.

[0182] As an example, the network can be configured to trigger the start of T312 by sending certain measurement reports.

[0183] As an example, the detection of a wireless link failure includes: receiving a problem with random access from the MCG's MAC.

[0184] As an example, the problem with the random access includes: the number of random access attempts exceeds a given maximum threshold.

[0185] As an example, the meaning of "the number of random access attempts exceeds a given maximum number threshold" includes: at least the given maximum number threshold number of random access attempts were made, but no random access was successfully established.

[0186] As one embodiment, the detection of a wireless link failure includes receiving an indication from the MCG RLC that the maximum number of retransmissions has been reached.

[0187] As a sub-example of this embodiment, the first node does not have any small data transmission in progress.

[0188] As an example, the first node is not an IAB (Integrated Access Backhaul) node.

[0189] As an example, the detection of wireless link failure includes receiving a continuous uplink LBT (listen before talk) failure indication from the MCG MAC.

[0190] As a sub-example of this embodiment, the T304 timer of the first node is not running.

[0191] As a sub-example of this embodiment, the T304 timer for the MCG of the first node is not running.

[0192] As an example, entering the RRC idle state means losing the RRC connection. When the first node needs to transmit measurement results, the RRC connection needs to be re-established, resulting in significant latency.

[0193] As an example, along with entering the RRC idle state, the first node needs to perform the following: reset MAC, stop the timer used in the RRC connected state, discard the UE inactive access layer context, release the suspend configuration, release the LTM (L1L2 triggered mobility) configuration, discard the AS layer key, release all radio resources, release the application layer measurement configuration that is not specified for the idle or inactive state, and discard at least one of the segments of the RRC message.

[0194] As an example, entering the RRC idle state includes: resetting the MAC, stopping the timer used in the RRC connected state, discarding the UE inactive access layer context, releasing the suspend configuration, releasing the LTM configuration, discarding the AS layer key, releasing all radio resources, releasing the application layer measurement configuration that is not specified as being in an idle or inactive state, and discarding at least one of the segments of the RRC message.

[0195] As one example, the initiation of RRC connection reconstruction is used to re-establish the RRC connection. The RRC connection reconstruction is successful when the network is able to find and verify the UE's context.

[0196] As an example, once an RRC connection reconstruction is initiated, the first node needs to perform the following actions: stop the T310 timer, stop the T312 timer, stop the T304 timer, and perform the first cell selection.

[0197] As an example, when the first node is not configured to attempt conditional reconfiguration and is not configured to attempt LTM handover, once an RRC connection reconstruction is initiated, the first node needs to perform the following: reset MAC, release spCellConfig, suspend SRB0 and at least one of all RBs other than broadcast MRB.

[0198] As an example, when the first node is configured to attempt conditional reconfiguration and the appropriate cell selected in the first cell selection is a candidate cell for conditional reconfiguration, the first node performs conditional reconfiguration.

[0199] As an example, when the first node is configured to attempt LTM handover and the appropriate cell selected in the first cell selection is a candidate cell for LTM handover, the first node performs LTM handover configuration.

[0200] As an example, the RB of the first node is restored as the RRC connection reconstruction is completed.

[0201] As an example, initiating an RRC connection reconstruction includes sending an RRC connection reconstruction request.

[0202] As an example, compared to entering the RRC idle state, initiating an RRC connection reconstruction is beneficial for faster RRC connection reconstruction, which helps to shorten latency. It also eliminates the need to re-establish or obtain keys, thus having less impact on communication. Furthermore, it avoids the resource consumption of re-initiating the establishment of an RRC connection.

[0203] As an example, the measurement results sent to the external server are a large amount of data.

[0204] As an example, the transmission of the measurement results sent to the external server takes a long time.

[0205] As one example, the measurement results sent to the external server need to be transmitted in multiple parts.

[0206] As an example, the first signaling radio bearer is neither default nor fixed.

[0207] As one embodiment, establishing the first signaling radio bearer includes configuring parameters of the first signaling radio bearer.

[0208] As an example, the parameters for configuring the first signaling radio bearer are configured by the network through RRC signaling.

[0209] As an example, the network configuration displayed via RRC signaling includes: the network is configured via RadioBearerConfig.

[0210] As an example, RadioBearerConfig includes one of RadioBearerConfig, RadioBearerConfig2, and RadioBearerConfig3.

[0211] As an example, the network configuration displayed via RRC signaling includes one of the following: srb6-ToAddMod, srb7-ToAddMod, srb8-ToAddMod, srb9-ToAddMod, and srb10-ToAddMod.

[0212] As an example, the parameters of the first signaling radio bearer include at least one of the following: security parameters, the identifier of the first signaling radio bearer, an indication of whether to rebuild PDCP, an indication of whether to discard the SDUs and PDUs stored in the PDCP, the configuration of the PDCP, and the logical channel used.

[0213] As an example, the first signaling radio bearer is established after the parameters or configuration of the first signaling radio bearer are received and executed. Executing the PDCP configuration means that a corresponding PDCP entity needs to be created.

[0214] As an example, SRB1, SRB2, and SRB3 are not used to carry measurement results for sending to an external server.

[0215] As an example, existing SRB4 and existing SRB5 are not used to carry measurement results for sending to external servers.

[0216] As an example, the first node may have at most one SRB2.

[0217] As an example, the at least first signaling radio bearer is the first signaling radio bearer; SRB2 is not established.

[0218] As one embodiment, the at least first signaling radio bearer is the first signaling radio bearer and SRB2.

[0219] As an example, the measurement results sent to the external server are used by the external server for training.

[0220] As an example, the multicast radio bearer is a multicast MBS (multicast broadcast service) radio bearer.

[0221] As an example, the multicast MBS radio bearer is an MRB (MBS radio bearer).

[0222] As an example, the meaning of "data radio bearer and multicast radio bearer not established" includes: at least one data radio bearer or multicast radio bearer is not established.

[0223] As an example, the meaning of "the data radio bearer and multicast radio bearer were not established" includes: no data radio bearer was established, and no multicast radio bearer was established.

[0224] As an example, the meaning of "the data radio bearer and the multicast radio bearer were not established" includes: at least one of the data radio bearer and the multicast radio bearer was not established.

[0225] As an example, the external server is private to the first node.

[0226] As an example, the external server is not part of the wireless access network.

[0227] As an example, the external server does not belong to the core network.

[0228] As an example, the external server is not OAM.

[0229] As an example, the core network connects to the external server via the Internet.

[0230] As an example, the external server is connected to the Internet.

[0231] As an example, the address of the external server is fixed.

[0232] As an example, the address of the external server is pre-configured.

[0233] As an example, the address of the external server is maintained by the core network.

[0234] As an example, the measurement results sent to the external server are billed.

[0235] As an example, the meaning of "sent to the external server is billable" includes: only a portion of the measurement results sent to the external server are billable.

[0236] As an example, the meaning of "the measurement results sent to the external server are billable" includes: all of the measurement results sent to the external server are billable.

[0237] As an example, information on signaling radio bearers in the prior art is not billed.

[0238] As an example, it is only activated when the RRC-connected AS is secure.

[0239] As an example, AS security is activated only after SRB1 is established.

[0240] As an example, activating AS security includes receiving a security command.

[0241] As an example, the security command includes: SecurityModeCommand.

[0242] As an example, activating AS security includes exporting a first set of AS keys after receiving the security command.

[0243] As an example, the first set of AS keys includes KgNB .

[0244] As an example, the first set of AS keys includes K RRCint .

[0245] As one example, activating AS security includes instructing a lower layer to verify the integrity of the security command.

[0246] As an example, activating AS security includes: after verifying the integrity of the security command, exporting a second set of AS keys.

[0247] As an example, the second set of AS keys includes: K RRCenc and K UPenc At least one of them.

[0248] As an example, the second set of AS keys includes: K UPint .

[0249] As an example, the lower layer in activating AS security includes the PDCP layer.

[0250] As an example, activating AS security includes configuring a lower layer to apply SRB integrity protection and encryption based on the first set of AS keys and the second set of AS keys described above.

[0251] As an example, the key can be derived by referring to 3GPP protocol TS 33.501 or by utilizing other existing technologies.

[0252] As one embodiment, the data radio bearer is a DRB (data radio bearer). The data radio bearer is used to carry data.

[0253] As an example, the measurement results sent to the external server include: RSRP.

[0254] As a sub-example of this embodiment, the RSRP includes the RSRP of the serving cell.

[0255] As a sub-example of this embodiment, the RSRP includes the RSRP on the first RS resource.

[0256] As a sub-implementation of this embodiment, the first RS resource is selected by the first node itself.

[0257] As a sub-example of this embodiment, the first RS resource is configured by the external server.

[0258] As a sub-implementation of this embodiment, the first RS resource is network configured.

[0259] As a sub-example of this embodiment, the RSRP includes the RSRP of neighboring cells.

[0260] As one example, the measurement results sent to the external server include: reception quality.

[0261] As one example, the reception quality includes decoding quality.

[0262] As one example, the reception quality includes latency.

[0263] As an example, the decoding quality includes BLER (block error ratio).

[0264] As an example, the measurement results sent to the external server include: UE-side data collection.

[0265] As an example, the measurement results sent to the external server are for AI purposes.

[0266] As an example, SRB2 of the first node was not established.

[0267] As an example, the failure to establish SRB2 of the first node includes the release of SRB2 of the first node.

[0268] As an example, the external server is an OTT server.

[0269] As an example, the external server is the AI ​​server of the first node.

[0270] As an example, the OTT server is the AI ​​server of the first node.

[0271] As an example, the OTT server is a server outside of the mobile network.

[0272] As an example, the OTT server does not belong to the core network.

[0273] As an example, communication between the OTT server and the first node needs to go through a gateway.

[0274] As one example, the measurement results to be sent to an external server for AI data collection includes: the measurement results being collected for AI model training.

[0275] As one example, the measurement results to be sent to an external server for AI data collection includes: the measurement results being collected for AI model optimization.

[0276] As one example, the data collection for AI, which is to send the measurement results to an external server, includes: the measurement results being collected for AI model selection.

[0277] As one example, the measurement results to be sent to an external server for AI data collection includes: the measurement results being collected for AI model validation or monitoring.

[0278] As an example, the measurement results to be sent to an external server include processed RSRP.

[0279] As an example, the processed RSRP includes a compressed RSRP.

[0280] As an example, the compressed RSRP can be compressed using AI.

[0281] As an example, the processed RSRP includes RSRPs that have undergone feature extraction.

[0282] As a sub-implementation of this embodiment, the first signaling radio bearer may carry only the extracted features.

[0283] As one embodiment, the measurement results to be sent to an external server include at least the former of a first type of measurement results and a second type of measurement results.

[0284] As an example, only the latter of the first type of measurement result and the second type of measurement result is sent through the container of the first signaling.

[0285] As an example, the meaning of only the latter of the first type of measurement result and the second type of measurement result being sent through the container of the first signaling is that only the former of the first type of measurement result and the second type of measurement result is visible to the wireless network.

[0286] As one example, the wireless network includes a RAN.

[0287] As an example, the meaning of only the latter of the first type of measurement result and the second type of measurement result being sent through the container of the first signaling is that the latter of the first type of measurement result and the second type of measurement result is not visible to the wireless network.

[0288] As an example, the meaning of "only the latter of the first type of measurement result and the second type of measurement result is sent through the container of the first signaling" is that the latter of the first type of measurement result and the second type of measurement result is only visible to the external server.

[0289] As an example, "visible" means "identifiable".

[0290] As an example, "invisible" means: not visible.

[0291] As an example, "invisible" means: unrecognizable.

[0292] As an example, the meaning of only the latter of the first type of measurement result and the second type of measurement result being sent through the container of the first signaling is that the second type of measurement result is encrypted and cannot be decrypted by the wireless network.

[0293] As an example, the meaning of only the latter of the first type of measurement results and the second type of measurement results being sent through the container of the first signaling is that the first type of measurement results are not encrypted for the wireless network.

[0294] As an example, the meaning of only the latter of the first type of measurement result and the second type of measurement result being sent through the container of the first signaling is that the wireless network cannot recognize the format of the second type of measurement result.

[0295] As an example, at least one RRC message on the first signaling radio bearer carries the first type of measurement result.

[0296] As an example, the fields in the at least one RRC message respectively carry the values ​​of the first type of measurement results.

[0297] As an example, at least one RRC message on the first signaling radio bearer carries the second type of measurement result.

[0298] As an example, the fact that only the latter of the first type of measurement result and the second type of measurement result is sent through the container of the first signaling includes: the at least one RRC message does not define a field carrying the second type of measurement result.

[0299] As an example, the benefits of using the first type of measurement results in the above methods include: assisting in the optimization of wireless networks; improving the performance of wireless networks; and facilitating joint optimization with wireless networks or AI.

[0300] As an example, the benefits of using the second type of measurement results in the above methods include: improved privacy and enhanced differentiation of AI models.

[0301] As an example, the meaning of whether the first operation is to enter the RRC idle state or initiate RRC connection reconstruction depending on whether the first signaling radio bearer has been established includes: when the first signaling radio bearer has been established, the first operation is to initiate RRC connection reconstruction; when the first signaling radio bearer has not been established, the first operation is to enter the RRC idle state.

[0302] As a sub-example of this embodiment, the SRB2 of the first node was not established.

[0303] As an example, at least one of SRB4 and SRB5 of the first node has been established.

[0304] As an example, the meaning of "at least one of SRB4 and SRB5 of the first node has been established" includes: only SRB4 of the first node's SRB4 and SRB5 has been established.

[0305] As an example, the meaning of "at least one of SRB4 and SRB5 of the first node has been established" includes: both SRB4 and SRB5 of the first node have been established.

[0306] As an example, the measurement results to be sent to an external server do not include application layer measurement results.

[0307] Example 2

[0308] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown.

[0309] Appendix Figure 2This diagram illustrates the network architecture 200 of 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. 5GS / EPS 200 may include one or more UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, 5GS / EPS 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 providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination to UE 201. gNB 203 can connect to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable term. gNB 203 provides UE 201 with an access point to 5GC / EPC 210. Examples of UE201 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 IoT 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 UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term.gNB203 connects to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node handling signaling between UE201 and 5GC / EPC210. ​​Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 connects to Internet service 230. Internet service 230 includes carrier-compliant Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0310] As an example, the first node in this application is UE201.

[0311] As an example, the base station of the second node in this application is gNB203.

[0312] As an example, the radio link from UE201 to NR node B is an uplink.

[0313] As an example, the radio link from NR node B to UE201 is a downlink.

[0314] As an example, the UE201 includes a mobile phone.

[0315] As an example, the UE201 is a dedicated device or special device with communication functions.

[0316] As an example, gNB203 is a macro cell base station.

[0317] As an example, the gNB203 is a microcell base station.

[0318] As an example, the gNB203 is a pico cell base station.

[0319] Example 3

[0320] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 between the first node (UE, gNB) and the second node (gNB, UE), or between the two UEs, is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the first and second nodes, and between the two UEs, via PHY301. L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-regional movement between second nodes to the first node. RLC sublayer 303 provides upper layer data packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between first nodes. MAC sublayer 302 is also responsible for HARQ operations. RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first nodes. PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for processing the signaling protocol of the PC5 interface. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second nodes in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support service diversity. SRBs can be seen as services or interfaces provided by the PDCP sublayer to higher layers, such as the RRC sublayer. In the NR system, SRBs include SRB1, SRB2, and SRB3, which are used to transmit different types of control signaling. SRBs are bearers between the UE and the access network, used to transmit control signaling, including RRC signaling, between the UE and the access network. SRB1 is particularly important for the UE; after each UE establishes an RRC connection, there will be an SRB1 used to transmit RRC signaling. Most signaling is transmitted through SRB1. If SRB1 is interrupted or unavailable, the UE must re-establish the RRC connection. SRB2 is generally only used to transmit NAS signaling or security-related signaling. UEs may not need to configure SRB3. Except for emergency services, the UE must establish an RRC connection with the network for subsequent communication. Although not illustrated, the first node may have several upper layers above L2 layer 355. This also includes a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.). Protocol layers can also be referred to as protocol sublayers. (See Appendix.) Figure 3 The diagram shows a general protocol layer structure. Nodes in this application may lack certain protocol layers without affecting the effectiveness of the proposed method.

[0321] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0322] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0323] As an example, the measurement results described in this application for sending to an external server are generated in RRC306.

[0324] As an example, the first measurement configuration in this application is generated on the external server.

[0325] As an example, the second measurement configuration in this application is generated on RRC306 or NAS.

[0326] As an example, some segments of the measurement results in this application are generated in RRC306.

[0327] As an example, the RRC connection reconstruction request in this application is generated in RRC306.

[0328] As an example, the first message in this application is generated in RRC306.

[0329] Example 4

[0330] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0331] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, and optionally may also include a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0332] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, and optionally may also include a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0333] 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 L2 (Layer-2) layer functionality. 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 to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting 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). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0334] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier 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 receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements L2 layer functions. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In transmissions from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above L2. Various control signals may also be provided to L3 for L3 processing.

[0335] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0336] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The 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 computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0337] As one 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 with the at least one processor, and the first communication device 450 at least: in response to detecting a radio link failure, performs a first operation; wherein whether the first operation enters an RRC idle state or initiates an RRC connection re-establishment depends on whether at least a first signaling radio bearer is established, the first signaling radio bearer being a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer are not established.

[0338] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: performing a first operation in response to detecting a radio link failure; wherein whether the first operation enters an RRC idle state or initiates an RRC connection re-establishment depends on whether at least a first signaling radio bearer is established, the first signaling radio bearer being a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; AS security of the first node is activated and data radio bearers and multicast radio bearers are not established.

[0339] As an example, the first communication device 450 corresponds to the first node in this application.

[0340] As an example, the second communication device 410 corresponds to the second node in this application.

[0341] As an example, the first communication device 450 is a UE.

[0342] As an example, the first communication device 450 is a mobile phone.

[0343] As one embodiment, the second communication device 410 is a base station.

[0344] As one embodiment, receiver 454 (including antenna 452), receiver processor 456 and controller / processor 459 are used in this application to receive the first measurement configuration.

[0345] As one embodiment, receiver 454 (including antenna 452), receiver processor 456 and controller / processor 459 are used in this application to receive the second measurement configuration.

[0346] As one embodiment, a transmitter 454 (including an antenna 452), a transmission processor 468, and a controller / processor 459 are used in this application to transmit the measurement results to an external server.

[0347] As one embodiment, transmitter 454 (including antenna 452), transmitter processor 468, and controller / processor 459 are used in this application to transmit a portion of the measurement results.

[0348] As one embodiment, transmitter 454 (including antenna 452), transmitter processor 468, and controller / processor 459 are used in this application to transmit the RRC connection re-establishment request.

[0349] As one embodiment, a transmitter 454 (including an antenna 452), a transmitter processor 468, and a controller / processor 459 are used in this application to transmit the first message.

[0350] Example 5

[0351] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. (Attached) Figure 5 In this example, U01 corresponds to the first node of this application. It should be noted that the order in this example does not limit the signal transmission order and the implementation order in this application, and the steps in F51 are optional.

[0352] for First node U01 In step S5101, a first message is sent; in step S5102, a first measurement configuration is received; in step S5103, a second measurement configuration is received; in step S5104, a measurement is performed; in step S5105, a measurement report is sent; in step S5106, a radio link failure is detected; in step S5107, it is determined whether the first signaling radio bearer has been established; in step S5108, the RRC idle state is entered; and in step S5109, an RRC connection reconstruction is initiated.

[0353] for Second node U02 In step S5201, a first message is received; in step S5202, a first measurement configuration is sent; in step S5203, a second measurement configuration is sent; and in step S5204, a measurement report is received.

[0354] In Example 5, whether the first operation enters the RRC idle state or initiates an RRC connection re-establishment depends on at least whether a first signaling radio bearer is established, the first signaling radio bearer being a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer are not established.

[0355] As an example, step S5107 is a response to step S5106.

[0356] As an example, the second node U02 is the base station corresponding to the PCell of the first node U01.

[0357] As an example, the second node U02 is the control unit associated with the PCell of the first node U01.

[0358] As one embodiment, the second node U02 is the serving cell of the first node or the base station corresponding to the serving cell.

[0359] As one example, the second node U02 belongs to a cellular network or a wireless access network.

[0360] As one example, the second node U02 corresponds to the source cell in the handover.

[0361] As an example, Appendix Figure 5 The numbering order of the steps shown is the chronological order.

[0362] As an example, step S5101 precedes step S5102.

[0363] As an example, step S5101 precedes step S5103.

[0364] As an example, step S5102 precedes step S5103.

[0365] As an example, step S5102 is not earlier than step S5103.

[0366] As an example, step S5104 is later than step S5103.

[0367] As an example, step S5104 is later than step S5102.

[0368] As an example, step S5105 is later than step S5104.

[0369] As an example, the order of step S5106 and any of steps S5101 to S5105 is not restricted.

[0370] As an example, step S5107 is later than step S5106.

[0371] As an example, step S5108 is later than step S5107.

[0372] As an example, step S5109 is later than step S5107.

[0373] As an example, only one of steps S5108 and S5109 is performed.

[0374] As an example, the first message requests a measurement.

[0375] As a sub-example of this embodiment, the request to perform a measurement includes a recommended measurement configuration.

[0376] As a sub-example of this embodiment, the request to perform measurement includes a request for data collection.

[0377] As a sub-example of this embodiment, the data collection is for AI purposes.

[0378] As a sub-implementation of this embodiment, the data collection is on the UE side.

[0379] As a sub-example of this embodiment, the recommended measurement configuration includes a recommended configuration for the reference downlink signal.

[0380] As a sub-example of this embodiment, the recommended measurement configuration includes the recommended measurement period.

[0381] As a sub-example of this embodiment, the recommended measurement configuration includes a recommended measurement gap configuration.

[0382] As a sub-example of this embodiment, the recommended measurement configuration includes the recommended measurement time.

[0383] As an example, the network can independently trigger the first node U01 to perform measurements, so the first message is not necessary. Sending the first message helps to better support the measurement requests initiated by the UE and helps to reduce the impact of the above measurements on communication.

[0384] As one embodiment, the first measurement configuration can be configured based on the first message, or it can be configured independently by the network.

[0385] As one embodiment, the second measurement configuration can be configured based on the first message, or it can be configured independently by the network.

[0386] As an example, the first node U01 receives the first measurement configuration from the first signaling radio bearer.

[0387] As an example, the first node U01 receives the second measurement configuration from the second signaling radio bearer.

[0388] As an example, step S5104 is performed according to the first measurement configuration and the second measurement configuration.

[0389] As one embodiment, the second signaling radio bearer is a signaling radio bearer other than the first signaling radio bearer.

[0390] As one embodiment, the second signaling radio bearer is SRB1.

[0391] As one embodiment, the second signaling radio bearer is SRB2.

[0392] As an example, the generator of the first measurement configuration is the external server.

[0393] As an example, the generator of the second measurement configuration is the second node U02.

[0394] As one embodiment, the first measurement configuration includes the frequency of measurement.

[0395] As one embodiment, the first measurement configuration includes a measurement period.

[0396] As one embodiment, the first measurement configuration includes the number of measurements.

[0397] As one example, the first measurement configuration includes the cells to be measured.

[0398] As one embodiment, the second measurement configuration includes a reference signal configuration.

[0399] As one embodiment, the second measurement configuration includes the timing of the measurement.

[0400] As one embodiment, the second measurement configuration includes the physical cell identifier being measured.

[0401] As one embodiment, the second measurement configuration includes a measurement gap configuration.

[0402] As one example, the first measurement configuration includes a first reporting configuration.

[0403] As one embodiment, the second measurement configuration includes a second reporting configuration.

[0404] As an example, the first report configuration corresponds to the second type of measurement result.

[0405] As an example, the second report configuration corresponds to the first type of measurement result.

[0406] As an example, the first report configuration corresponds to a first type of measurement result and a second type of measurement result.

[0407] As an example, the advantages of using both the first measurement configuration and the second measurement configuration for measurement include: the first measurement configuration provided by the external server is conducive to better meeting the data requirements of the external server and better supporting the training and verification of AI models; the second measurement configuration provided by the second node U02 is conducive to providing suitable wireless configuration parameters, which can better match wireless transmission.

[0408] As an example, the first node U01 may also perform measurements independently without using the first and second measurement configurations. For example, it may perform as many measurements as possible, with an external server selecting the measurement results.

[0409] As an example, how to perform measurements on reference signal resources is an existing technology.

[0410] As one embodiment, the reference signal resource includes an SSB.

[0411] As an example, the reference signal resource includes CSI-RS (channel state information-reference signal).

[0412] As an example, those skilled in the art should understand that step S5104 can continue for a period of time, for example until sufficient measurement results are obtained and / or the measurement requirements are met.

[0413] As an example, the measurement report sent in step S5105 includes the measurement results sent to an external server.

[0414] As an example, sending the measurement results in step S5105 may include periodic reporting.

[0415] As an example, the sending of measurement results in step S5105 may be reported after at least one of the triggering conditions of the first report configuration or the second report configuration is met.

[0416] As an example, the sending of measurement results in step S5105 can be reported as having obtained at least one measurement result.

[0417] As an example, the sending of measurement results in step S5105 can be reported once enough measurement results have been obtained.

[0418] As a sub-example of this embodiment, the sufficient number of measurement results are configured by the first measurement configuration.

[0419] As a sub-example of this embodiment, the sufficient number of measurement results are determined by the first node U01 itself.

[0420] As an example, step S5105 can be a one-time event or can last for a certain period of time.

[0421] As an example, when the first signaling radio bearer has been established, the first node U01 can continue to send measurement reports after the RRC connection reconstruction is completed.

[0422] As an example, continuing to send measurement reports refers to continuing to execute step S5105.

[0423] As an example, the continued sending of measurement reports means that step S5105 is performed before step S5106 and also after step S5109.

[0424] As an example, step S5109 includes sending an RRC connection reconstruction request.

[0425] As an example, the network can send an RRC connection command after receiving the RRC connection reconstruction request from the first node U01.

[0426] As an example, the first node U01 performs RRC connection reconstruction after receiving the RRC connection reconstruction instruction and sends an RRC connection reconstruction completion message.

[0427] As an example, step S5104 can continue to be performed during the RRC connection reconstruction process.

[0428] As an example, the first signaling radio bearer is suspended during the RRC connection reconstruction process.

[0429] As an example, the first signaling radio bearer is not released during the RRC connection reconstruction process.

[0430] As an example, the first measurement configuration is not released during the RRC connection reconstruction process.

[0431] As an example, the second measurement configuration is not released during the RRC connection reconstruction process.

[0432] As an example, the advantages of the above method include: facilitating the acquisition of measurement results during the RRC connection reconstruction process, enriching the scenarios supported by the AI ​​model, and improving the performance of the AI ​​model when applied to poor channel environments.

[0433] As an example, the information on the first signaling radio bearer is encrypted.

[0434] As one embodiment, the information on the first signaling radio bearer is encrypted, including: the first type of measurement results are encrypted using AS; and the second type of measurement results are encrypted using non-AS.

[0435] As an example, the AS encryption is decryptable by the RAN.

[0436] As an example, the non-AS encryption is RAN-indecryptible.

[0437] As an example, the non-AS encryption is private.

[0438] As an example, the non-AS encryption method is decrypted by the external server.

[0439] As one example, the advantages of carrying measurement results intended for transmission to an external server via a signaling radio bearer include: it facilitates carrying measurement results visible to the wireless network, and particularly, it allows for the simultaneous carrying of both wireless network-visible and wireless network-invisible measurement results. This reduces the complexity of the transmission design and increases transmission flexibility. In contrast, it is difficult to carry wireless network-visible measurement results using a data radio bearer.

[0440] Example 6

[0441] Example 6 illustrates a schematic diagram of the generation of measurement results according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown.

[0442] Appendix Figure 6 The protocol layers / sublayers related to the generation of measurement results are shown; some protocol layers have been omitted for emphasis. The specific protocol layers or sublayers supported by the first node can be found in Embodiment 3.

[0443] As an example, Appendix Figure 6 The dashed line with arrows indicates that the first node transmits at least one of the first type of measurement results and the second type of layer results to the network via the first signaling radio bearer. The first signaling radio bearer terminates between the UE and the radio access network. This transmission to the network relies on lower-layer processing, such as transmissions requiring the physical layer.

[0444] As one example, the measurement occurs at a lower layer. The measurement is performed by the lower layer.

[0445] As an example, Appendix Figure 6 The lower layers in the hierarchy include the physical layer.

[0446] As an example, Appendix Figure 6 The lower layers in the system include the MAC layer.

[0447] As an example, Appendix Figure 6 The lower layers in the process submit the measurement results to the RRC layer and the higher layers respectively.

[0448] As an example, Appendix Figure 6 The higher layers in this include the NAS layer.

[0449] As an example, Appendix Figure 6 The higher layers in this context include protocol layers above the RRC layer.

[0450] As an example, the measurement results submitted to the higher layer are different from the measurement results submitted to the RRC layer.

[0451] As one example, the measurement results submitted to the higher layer are processed by the higher layer to generate a second type of measurement result.

[0452] As one embodiment, the step of generating the second type of measurement result by the higher layer includes: the higher layer directly using the measurement result submitted to the higher layer as the second type of measurement result.

[0453] As one embodiment, the step of generating the second type of measurement result by the higher layer includes: the higher layer transforming the measurement result submitted to the higher layer into the second type of measurement result.

[0454] As a sub-implementation of this embodiment, the higher layer performs a discrete cosine transform on the measurement results submitted to the higher layer.

[0455] As a sub-implementation of this embodiment, the higher layer performs a Fourier transform on the measurement results submitted to the higher layer.

[0456] As a sub-example of this embodiment, the higher layer uses AI to transform the measurement results submitted to the higher layer.

[0457] As a sub-example of this embodiment, the higher layer extracts feature values ​​from the measurement results submitted to the higher layer.

[0458] As one embodiment, the step of generating the second type of measurement result by the higher layer includes: the higher layer filtering the measurement results submitted to the higher layer as the second type of measurement result.

[0459] As a sub-example of this embodiment, the filtering includes: the higher layer extracting the measurement results submitted to the higher layer at time intervals in the time domain.

[0460] As a sub-example of this embodiment, the filtering includes: the higher layer extracting the measurement results submitted to the higher layer at intervals in the frequency domain.

[0461] As a sub-example of this embodiment, the filtering includes: the higher layer extracting the measurement results submitted to the higher layer at intervals in the spatial domain.

[0462] As a sub-example of this embodiment, the filtering includes: the higher layer extracting measurement results for a portion of the cells or beams from the measurement results submitted to the higher layer.

[0463] As a sub-implementation of this embodiment, the filtering includes: the higher layer filtering the measurements submitted to the higher layer according to a measurement configuration. The measurement configuration includes the first measurement configuration; the filtering according to the measurement configuration includes a reporting configuration based on the measurement configuration.

[0464] As an example, the RRC layer of the first node processes the measurement results submitted to the RRC layer to generate the first type of measurement results.

[0465] As an example, the RRC layer of the first node processes the measurement results submitted to the RRC layer to generate the first type of measurement results by directly generating the first type of measurement results from the measurement results submitted to the RRC layer.

[0466] As an example, the RRC layer of the first node processes the measurement results submitted to the RRC layer to generate the first type of measurement results by: transforming the measurement results submitted to the RRC layer to generate the first type of measurement results.

[0467] As a sub-example of this embodiment, the RRC layer performs discrete cosine transform on the measurement results submitted to the RRC layer.

[0468] As a sub-implementation of this embodiment, the RRC layer performs a Fourier transform on the measurement results submitted to the RRC layer.

[0469] As a sub-example of this embodiment, the RRC layer transforms the measurement results submitted to the RRC layer using AI.

[0470] As a sub-example of this embodiment, the RRC layer extracts feature values ​​from the measurement results submitted to the RRC layer.

[0471] As an example, the RRC layer of the first node processes the measurement results submitted to the RRC layer to generate the first type of measurement results by: filtering the measurement results submitted to the RRC layer to generate the first type of measurement results.

[0472] As a sub-example of this embodiment, the filtering includes: the RRC layer extracting the measurement results submitted to the RRC layer at time intervals in the time domain.

[0473] As a sub-example of this embodiment, the filtering includes: the RRC layer extracting the measurement results submitted to the RRC layer at intervals in the frequency domain.

[0474] As a sub-example of this embodiment, the filtering includes: the RRC layer extracting the measurement results submitted to the RRC layer at intervals in the spatial domain.

[0475] As a sub-example of this embodiment, the filtering includes: the RRC layer extracting measurement results for a portion of cells or beams from the measurement results submitted to the RRC layer.

[0476] As a sub-example of this embodiment, the filtering includes: the RRC layer filtering the measurements submitted to the RRC layer according to the measurement configuration. The measurement configuration includes the second measurement configuration; the filtering according to the measurement configuration includes a reporting configuration based on the measurement configuration.

[0477] As an example, the lower layer determines for itself which measurement results to submit to the higher layer and which measurement results to submit to the RRC layer.

[0478] As an example, the lower layer determines which measurement results are submitted to the higher layer and which measurement results are submitted to the RRC layer based on the first measurement configuration.

[0479] As an example, the lower layer determines which measurement results are submitted to the higher layer and which measurement results are submitted to the RRC layer based on the second measurement configuration.

[0480] As an example, the lower layer determines which measurement results are submitted to the higher layer and which measurement results are submitted to the RRC layer based on the configuration of the higher layer.

[0481] As an example, the lower layer determines which measurement results are submitted to the higher layer and which measurement results are submitted to the RRC layer based on the configuration of the RRC layer.

[0482] As an example, the lower layer may also submit the measurement results to the RRC layer first, and then the RRC layer submits them to the higher layer.

[0483] As an example, the RRC layer can submit measurement results that do not correspond to the first type of measurement results as the measurement results submitted to higher layers.

[0484] As an example, the benefits of having the measurement results submitted to the RRC layer processed by the RRC layer include: better utilization of the RRC protocol to process and encapsulate the results, reducing the complexity of higher layers.

[0485] Example 7

[0486] Example 7 illustrates a schematic diagram of the generation of measurement results according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown.

[0487] Appendix Figure 7 The protocol layers / sublayers related to the generation of measurement results are shown; some protocol layers have been omitted for emphasis. The specific protocol layers or sublayers supported by the first node can be found in Embodiment 3.

[0488] As an example, Appendix Figure 7 The dashed line with arrows indicates that the first node transmits at least one of the first type of measurement results and the second type of layer results to the network via the first signaling radio bearer. The first signaling radio bearer terminates between the UE and the radio access network. This transmission to the network relies on lower-layer processing, such as transmissions requiring the physical layer.

[0489] As an example, Appendix Figure 7 The lower layers in the hierarchy include the physical layer.

[0490] As an example, Appendix Figure 7 The lower layers in the system include the MAC layer.

[0491] As an example, Appendix Figure 7 The lower layers in the measurement will measure the results of the higher layers.

[0492] As an example, Appendix Figure 7 The higher layers in this include the NAS layer.

[0493] As an example, Appendix Figure 7 The higher layers in this context include protocol layers above the RRC layer.

[0494] As one example, the measurement occurs at a lower layer. The measurement is performed by the lower layer.

[0495] As an example, Appendix Figure 7 The higher layers in the system process the received measurement results.

[0496] As one embodiment, the higher layer processes the received measurement results by dividing the measurement results into candidate first-class measurement results and second-class measurement results.

[0497] As one embodiment, the higher layer processes the received measurement results by compressing the measurement results.

[0498] As one embodiment, the higher layer processes the received measurement results by transforming the measurement results.

[0499] As one example, the higher layer processes the received measurement results by filtering the measurement results.

[0500] As one example, the higher layer's processing of the received measurement results includes: verifying the measurement results.

[0501] As one example, the compression of the measurement results includes compression using AI.

[0502] As one example, the compression of the measurement results includes compression using existing technologies.

[0503] As an example, the transformation of the measurement results includes performing discrete cosine transform, Fourier transform, and extracting feature vectors.

[0504] As an example, the filtering of measurement results includes filtering in the time domain, frequency domain, and spatial domain, targeting different cells and beams, or filtering based on measurement configuration.

[0505] As one example, the filtering of measurement results includes: removing extreme values ​​or retaining only extreme values.

[0506] As an example, Appendix Figure 7 The higher layers in the process submit candidate first-type measurement results and second-type measurement results to the RRC layer.

[0507] As one embodiment, the candidate first type of measurement result is submitted to the RRC layer in the form of a message or plaintext. The second type of measurement result is submitted to the RRC layer in the form of a container, bit string, or string.

[0508] As an example, the RRC layer encapsulates the candidate first type of measurement results and the second type of measurement results to generate corresponding RRC messages and sends the generated RRC messages to the network through the first signaling radio bearer.

[0509] As an example, the RRC layer directly uses the candidate first type of measurement result as the first type of measurement result.

[0510] As an example, the RRC layer processes or encodes the candidate first type of measurement results in terms of format as the first type of measurement results.

[0511] As an example, the RRC layer filters or segments the candidate first type of measurement results as the first type of measurement results.

[0512] As a sub-example of this embodiment, the filtering method is determined by the RRC layer itself according to different algorithm implementations.

[0513] As a sub-example of this embodiment, the screening method is determined by the RRC layer according to the second measurement configuration.

[0514] As one embodiment, the RRC layer can encapsulate the candidate first type of measurement results and the second type of measurement results into a single RRC message, or it can encapsulate them into multiple RRC messages. These multiple RRC messages are transmitted on the first signaling radio bearer.

[0515] As an example, the advantage of processing the measurement results at the higher layer to obtain the candidate first and second type of measurement results is that it facilitates the use of proprietary methods or methods configured by external servers to process the visible and invisible measurement results of the wireless network.

[0516] Example 8

[0517] Example 8 illustrates a schematic diagram of generating new segments according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0518] Appendix Figure 8 The illustration depicts a scenario where the measurement results to be sent to an external server comprise multiple segments. The first segment is one that has already been transmitted. This first segment includes at least a first measurement value, which may include, for example, RSRP. (Appendix) Figure 8 The second segment is a segment that has not yet been transmitted or has not yet been transmitted. The second segment includes a second measurement value, a third measurement value, and optional other measurement values. After the RRC connection is re-established, the first node generates a new second segment and transmits the new second segment, ceasing transmission or discontinuing transmission of the second segment. This new second segment is different from the second segment.

[0519] As one embodiment, the first node transmits a partial segment of the measurement result on the first signaling radio bearer. The partial segment includes the first segment and the new second segment.

[0520] As an example, the portion of the measurement results transmitted on the first signaling radio bearer is regenerated after the RRC connection is re-established.

[0521] As a sub-implementation of this embodiment, the first operation is to initiate an RRC connection reconstruction.

[0522] As a sub-implementation of this embodiment, the partial segment is the new second segment.

[0523] As an example, the partial segmentation includes the new second segmentation.

[0524] As an example, the new second segment includes measurements not present in the second segment.

[0525] As an example, the new second segment does not include the second measurement value.

[0526] As one example, the new second segment may include other measurements.

[0527] As one embodiment, the segmentation of the measurement results transmitted on the first signaling radio bearer is generated based on a network indication. The network indication includes the cell selected during RRC connection re-establishment.

[0528] As a sub-implementation of this embodiment, the network indication is an indication of the cell after RRC connection reconstruction.

[0529] As a sub-implementation of this embodiment, the partial segmentation includes the new second segmentation.

[0530] As an example, the meaning of the partial segment of the measurement result transmitted on the first signaling radio bearer being regenerated after the RRC connection is re-established includes: the partial segment of the measurement result transmitted on the first signaling radio bearer is different from the segment of the measurement result transmitted on the first signaling radio bearer that was not transmitted before the RRC connection was re-established.

[0531] As an example, the meaning of the partial segment of the measurement result transmitted on the first signaling radio bearer being regenerated after the RRC connection is re-established includes: the partial segment of the measurement result transmitted on the first signaling radio bearer contains different content from the segment of the measurement result transmitted on the first signaling radio bearer that was not transmitted before the RRC connection was re-established.

[0532] As an example, the meaning of the partial segment of the measurement results transmitted on the first signaling radio bearer being regenerated after the RRC connection is re-established includes: the partial segment of the measurement results transmitted on the first signaling radio bearer is a reduction based on the segment of the measurement results transmitted on the first signaling radio bearer that was not transmitted before the RRC connection was re-established.

[0533] As an example, the first segment, the second segment, and the new second segment are all segments of RRC messages.

[0534] As an example, the advantages of the above method include: saving resources and avoiding the need to retransmit all measurement results; greater flexibility; and suitability for scenarios with a large number of measurement results.

[0535] Example 9

[0536] Example 9 illustrates a schematic diagram of an external server according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown.

[0537] Appendix Figure 9 The network structure relevant to this application is illustrated. The wireless network includes a radio access network (RAN) and a core network. The UE, corresponding to the first node of this application, is not part of the wireless network. The external server is also not part of the wireless network. (Appendix) Figure 9 The network nodes in the diagram are those that interface with external servers.

[0538] As an example, the network node belongs to the core network.

[0539] As one example, the network node is a gateway.

[0540] As an example, the network node is an OAM node.

[0541] As one example, the network node can be a functional entity or a physical entity.

[0542] As one embodiment, the interface between the network node and the external server is the interface between the wireless network and the Internet.

[0543] As an example, the interface between the network node and the external server is a specially defined interface.

[0544] As a sub-implementation of this embodiment, the advantage of the specially defined interface is that it supports richer functionality. This also makes it possible to reduce latency.

[0545] As an example, the measurement results carried by the first signaling radio bearer for transmission to an external server terminate at the radio access network.

[0546] As an example, the wireless access network sends the measurement results carried by the first signaling radio bearer, intended for transmission to an external server, to the network node.

[0547] As an example, the network node then sends the measurement results, intended for transmission to an external server, to the external server.

[0548] As an example, when the external server wants to send the first measurement configuration to the first node, the first measurement configuration is first sent to the network node, then the network node sends the first measurement configuration to the wireless access network, and then the wireless access network sends it to the first node.

[0549] As an example, the wireless network may also include other nodes, such as AMF (access mobility function), such as a billing node.

[0550] As an example, the wireless access network and the network node may also be connected via nodes of other wireless networks.

[0551] As an example, communication between the network node and the external server belongs to the user plane.

[0552] As a sub-implementation of this embodiment, the advantages of the user plane include: large capacity.

[0553] As an example, communication between the network node and the external server belongs to the control plane.

[0554] As a sub-implementation of this embodiment, the advantages of belonging to the control plane include: stability and reliability.

[0555] As an example, the communication between the first node and the wireless access network belongs to the control plane.

[0556] As one example, the address of the external server is configured or determined by the wireless network.

[0557] As a sub-example of this embodiment, configuring the address of the external server by the wireless network helps to shorten the process and reduce latency.

[0558] As one example, the address of the external server is provided by the first node to the wireless network.

[0559] As a sub-implementation of this embodiment, providing the address of the external server by the first node is more flexible.

[0560] Example 10

[0561] Example 10 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 10 As shown. In the appendix Figure 10 In the first node, the processing device 1000 includes a first receiver 1001, a first transmitter 1002, and a first processor 1003.

[0562] In embodiment 10, the first processor 1003 performs a first operation in response to the detection of a wireless link failure;

[0563] In this context, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction depends on at least whether a first signaling radio bearer has been established, and the first signaling radio bearer is a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer have not been established.

[0564] As an example, SRB2 of the first node was not established.

[0565] As an example, the external server is an OTT server.

[0566] As an example, the measurement results are sent to an external server for AI data collection.

[0567] As one embodiment, the measurement result includes at least the former of a first type of measurement result and a second type of measurement result; only the latter of the first type of measurement result and the second type of measurement result is sent through the container of the first signaling.

[0568] As an example, the meaning of whether the first operation is to enter the RRC idle state or initiate RRC connection reconstruction depending on whether the first signaling radio bearer has been established includes: when the first signaling radio bearer has been established, the first operation is to initiate RRC connection reconstruction; when the first signaling radio bearer has not been established, the first operation is to enter the RRC idle state.

[0569] As an example, at least one of SRB4 and SRB5 of the first node has been established.

[0570] As one embodiment, a first receiver 1001 receives a first measurement configuration from a first signaling radio bearer and a second measurement configuration from a second signaling radio bearer, wherein the measurement result is based on the measurement using the first measurement configuration and the second measurement configuration.

[0571] As one embodiment, the first transmitter 1002 transmits a partial segment of the measurement result on the first signaling radio bearer, wherein the partial segment of the measurement result transmitted on the first signaling radio bearer is regenerated after the RRC connection is re-established;

[0572] The first operation is to initiate an RRC connection reconstruction.

[0573] As an example, the first node is a user equipment (UE).

[0574] As an example, the first node is an NTN-enabled terminal.

[0575] As an example, the first node is an aircraft.

[0576] As an example, the first node is a vehicle-mounted terminal.

[0577] As an example, the first node is a mobile phone.

[0578] As an example, the first node is a ship.

[0579] As an example, the first node is an Internet of Things (IoT) terminal.

[0580] As an example, the first node is an industrial Internet of Things (IIoT) terminal.

[0581] As one embodiment, the first receiver 1001 includes at least one of the following in embodiment 4: antenna 452, receiver 454, receiver processor 456, multi-antenna receiver processor 458, controller / processor 459, memory 460, or data source 467.

[0582] As one embodiment, the first transmitter 1002 includes at least one of the following in embodiment 4: antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller / processor 459, memory 460, or data source 467.

[0583] Example 11

[0584] Example 11 illustrates a schematic diagram based on artificial intelligence or machine learning according to an embodiment of this application, as shown in the attached diagram. Figure 11 As shown.

[0585] Appendix Figure 11 This includes a third, fourth, fifth, sixth, and seventh operation. In Example 11, the third and fourth operations belong to the first stage, the fifth operation belongs to the second stage, the sixth operation belongs to the third stage, and the seventh operation belongs to the fourth stage. (See Appendix...) Figure 11 In the diagram, the lines with arrows indicate the sequence of processes.

[0586] As an example, the third operation includes AI / ML training, the fourth operation includes AI / ML testing, the fifth operation includes AI / ML emulation, the sixth operation includes AI / ML entity loading, and the seventh operation includes AI / ML inference.

[0587] As an example, Appendix Figure 11 The process is executed on the external server.

[0588] As an example, Appendix Figure 11 At least the third operation in the process is performed on the external server.

[0589] As one embodiment, the first stage includes a training phase, the second stage includes an emulation phase, the third stage includes a deployment phase, and the fourth stage includes an emulation phase.

[0590] As an example, the first stage includes AI / ML model training.

[0591] As an example, the first stage includes AI / ML model training and AI / ML testing.

[0592] As an example, the AI / ML model training includes initial training and re-training of one or a group of AI / ML entities.

[0593] As an example, the training of the AI / ML model depends on training data.

[0594] As an example, the AI / ML model training includes AI / ML entity validation.

[0595] As an example, the AI / ML entity verification is used to evaluate the performance of the AI / ML entity.

[0596] As an example, the AI / ML entity verification relies on verification data.

[0597] As an example, if the AI / ML entity verification results do not meet expectations, the AI / ML model will be retrained.

[0598] As an example, the AI / ML testing includes testing the validated AI / ML entities to estimate the performance of the trained AI / ML model.

[0599] As an example, if the AI / ML test results meet expectations, the AI / ML entity proceeds to the next stage; otherwise, the AI / ML model will be retrained.

[0600] As an example, the AI / ML test relies on test data.

[0601] As one embodiment, the second stage includes AI / ML simulation, which performs AI / ML entity inference in a simulation environment.

[0602] As an example, the AI / ML simulation estimates the performance of AI / ML entity reasoning in a simulation environment before using AI / ML entities.

[0603] As one embodiment, the second stage is optional.

[0604] As an example, the third stage includes AI / ML entity loading, which is to obtain trained AI / ML entities to obtain the desired AI / ML inference function.

[0605] As an example, the third stage is optional.

[0606] As an example, the third stage is no longer needed when the training and inference functions are co-located.

[0607] As an example, the fourth stage includes AI / ML inference.

[0608] As an example, in the appendix Figure 11 In this process, at least one of the third, fourth, and fifth operations utilizes the measurement results sent to the external server.

[0609] As an example, the method by which an external server uses the measurement results to perform at least one of the third, fourth, and fifth operations can be found in the prior art.

[0610] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific 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-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication equipment, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablets, satellite communication equipment, ship communication equipment, NTN user equipment, and other wireless communication equipment. 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), TRP (Transmitter Receiver Point), NTN base stations, satellite equipment, flight platform equipment, and other wireless communication equipment.

[0611] This invention may be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node used for wireless communication, wherein, include: The first processor, in response to the detection of a wireless link failure, performs the first operation; In this context, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction depends on at least whether a first signaling radio bearer has been established, and the first signaling radio bearer is a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer have not been established.

2. The first node according to claim 1, characterized in that, SRB2 for the first node has not been established.

3. The first node according to claim 1 or 2, characterized in that, The external server is an OTT server.

4. The first node according to any one of claims 1 to 3, characterized in that, The measurement results are sent to an external server for AI data collection.

5. The first node according to any one of claims 1 to 4, characterized in that, The measurement results include at least the former of a first type of measurement result and a second type of measurement result; only the latter of the first type of measurement result and the second type of measurement result is sent through the container of the first signaling.

6. The first node according to any one of claims 1 to 5, characterized in that, The meaning of whether the first operation is to enter the RRC idle state or initiate RRC connection re-establishment depends on whether the first signaling radio bearer has been established includes: when the first signaling radio bearer has been established, the first operation is to initiate RRC connection re-establishment; when the first signaling radio bearer has not been established, the first operation is to enter the RRC idle state.

7. The first node according to any one of claims 1 to 6, characterized in that, At least one of SRB4 and SRB5 of the first node has been established.

8. The first node according to any one of claims 1 to 7, characterized in that, include: A first receiver receives a first measurement configuration from a first signaling radio bearer and a second measurement configuration from a second signaling radio bearer, wherein the measurement result is based on a measurement using the first measurement configuration and the second measurement configuration.

9. The first node according to any one of claims 1 to 8, characterized in that, include: A first transmitter transmits a partial segment of measurement results on the first signaling radio bearer, wherein the partial segment of measurement results transmitted on the first signaling radio bearer is regenerated after the RRC connection is re-established; The first operation is to initiate an RRC connection reconstruction.

10. A method used in a first node of wireless communication, wherein, include: In response to the detection of a wireless link failure, perform the first operation; In this context, whether the first operation enters the RRC idle state or initiates an RRC connection reconstruction depends on at least whether a first signaling radio bearer has been established, and the first signaling radio bearer is a signaling radio bearer other than SRB2; the first signaling radio bearer is used to carry measurement results for transmission to an external server; the AS security of the first node is activated and the data radio bearer and multicast radio bearer have not been established.

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