Method for use in multicast service and small data transmission in wireless communication, and device

Abstract

The present application discloses a method for use in a multicast service and small data transmission in wireless communication, and a device. The method comprises: setting an identifier of a first cell in a first UE variable, whether the identifier of the first cell that is set in the first UE variable comprises first-type identifiers depending on the number of the first-type identifiers of the first cell, and the first-type identifiers being indicated by a synchronization signal. A global cell identifier and a tracking area code of the first cell are known to a first node, and whether the identifier of the first cell that is set in the first UE variable comprises the first-type identifiers depending on the number of the first-type identifiers of the first cell comprises: the identifier of the first cell that is set in the first UE variable comprising the first-type identifiers only when the number of the first-type identifiers of the first cell is greater than 1. According to the present application, network optimization can be better performed.

Description

A method and device for multicast services and small data transmission in wireless communications Technical Field

[0001] The present application relates to the setting of a first type of identifier in a wireless communication system, and in particular to self-optimization. Background Art

[0002] The application scenarios of future wireless communication systems will become increasingly diverse, and different scenarios will place varying performance requirements on the systems. To meet these diverse performance demands, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) plenary meeting #72 decided to conduct research on New Radio (NR) (or Fifth Generation, 5G). The NR Work Item (WI) was approved at the 3GPP RAN plenary meeting #75, initiating standardization work on NR.

[0003] In communications, both LTE (Long Term Evolution) and 5G NR require reliable and accurate information reception, optimized energy efficiency, determination of information validity, flexible resource allocation, scalable system architecture, efficient non-access layer information processing, low service interruption and call drop rates, and support for low power consumption. These requirements are crucial for normal communication between base stations and user devices, rational resource scheduling, and system load balancing. They are the cornerstone for achieving high throughput, meeting the communication needs of various services, improving spectrum utilization, and enhancing service quality. They are indispensable for eMBB (enhanced Mobile Broadband), URLLC (Ultra Reliable Low Latency Communication), and eMTC (enhanced Machine Type Communication). At the same time, there are extensive demands in IIoT (Industrial Internet of Things), V2X (Vehicular to X), device-to-device communication, unlicensed spectrum communication, user communication quality monitoring, network planning and optimization, TN (Territory Network), dual connectivity systems, wireless resource management and multi-antenna codebook selection, signaling design, neighboring cell management, service management, and beamforming. Information is sent in two ways: broadcast and unicast. Both transmission methods are essential for 5G systems because they are very helpful in meeting the above requirements.

[0004] As the scenarios and complexity of the system continue to increase, higher requirements are placed on reducing interruption rates, reducing latency, enhancing reliability, enhancing system stability, business flexibility, and saving power. At the same time, compatibility between different system versions also needs to be considered during system design.

[0005] The meanings of the concepts, terms, and abbreviations in this application may refer to the 3GPP standards, including but not limited to:

[0006] https: / / www.3gpp.org / ftp / Specs / archive / 21_series / 21.905 / 21905-h10.zip

[0007] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.300 / 38300-h10.zip

[0008] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.331 / 38331-h10.zip

[0009] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.133 / 38133-h10.zip

[0010] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.304 / 38304-h10.zip

[0011] https: / / www.3gpp.org / ftp / Specs / archive / 37_series / 37.320 / 37320-h10.zip

[0012] https: / / www.3gpp.org / ftp / Specs / archive / 23_series / 23.501 / 23501-h10.zip

[0013] https: / / www.3gpp.org / ftp / Specs / archive / 24_series / 24.501 / 24501-h10.zip

[0014] Summary of the Invention

[0015] Researchers have found that in a scenario where the identifier of the first cell is set in the first UE variable, how to determine whether the identifier of the first cell set in the first UE variable includes a first-category identifier is a problem that needs to be solved.

[0016] In response to the above-mentioned problems, this application provides a solution.

[0017] It should be noted that, in the absence of conflict, the embodiments and features of any node in this application can be applied to any other node. In the absence of conflict, the embodiments and features of the embodiments of this application can be combined with each other in any way. At the same time, the method proposed in this application can also be used to solve other problems in communications, such as NR evolution and problems in 6G systems.

[0018] As an embodiment, the interpretation of terminology in this application refers to the definition of 3GPP specification protocol TS38 series.

[0019] As an example, the interpretation of the terms in this application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0020] The present application discloses a method in a first node for wireless communication, comprising:

[0021] Setting an identifier of a first cell in a first UE variable, wherein whether the identifier of the first cell set in the first UE variable includes a first type identifier depends on the number of the first type identifiers of the first cell; the first type identifier is indicated by a synchronization signal;

[0022] Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type identifier depends on the number of the first type identifiers of the first cell, including: only when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type identifier.

[0023] As an embodiment, the problem to be solved by the present application includes: in a scenario where the identifier of the first cell is set in the first UE variable, how to determine whether the identifier of the first cell set in the first UE variable includes a first type of identifier.

[0024] As an embodiment, the benefits of the above method include: greater flexibility, avoiding network misoperation, better support for scenarios with multiple first-class identifiers, better support for self-optimization, better optimization of the random access process, which is conducive to avoiding wireless link failure and improving the success rate of switching.

[0025] Specifically, according to one aspect of the present application, the first report in the first message is set as the first report in the first UE variable; the first message is sent; wherein, setting the identifier of the first cell in the first UE variable includes setting the identifier of the first cell in the first report in the first UE variable.

[0026] Specifically, according to one aspect of the present application, when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the global cell identifier of the first cell.

[0027] Specifically, according to one aspect of the present application, when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable only includes the former of the first type identifier of the first cell and the global cell identifier of the first cell.

[0028] Specifically, according to one aspect of the present application, setting the identifier of the first cell in the first UE variable accompanies a first random access procedure, and the first random access procedure is performed in the first cell;

[0029] The first UE variable is a UE variable for recording random access reports.

[0030] Specifically, according to one aspect of the present application, setting the identifier of the first cell in the first UE variable is accompanied by a radio link failure, and the radio link failure occurs in the first cell;

[0031] The first UE variable is a UE variable for recording a radio link failure report.

[0032] Specifically, according to one aspect of the present application, setting the identifier of the first cell in the first UE variable is accompanied by a handover failure, and the first cell is a source cell or a target cell of the handover failure;

[0033] The first UE variable is a UE variable for recording a radio link failure report.

[0034] Specifically, according to one aspect of the present application, setting an identifier of a first cell in a first UE variable accompanies a successful handover, where the first cell is a source cell or a target cell of the successful handover;

[0035] The first UE variable is a UE variable that records a successful handover report.

[0036] Specifically, according to one aspect of the present application, the first type of identifier includes a physical cell identifier and an additional physical cell identifier.

[0037] Specifically, according to one aspect of the present application, the first type of identifier includes a physical cell identifier and a synchronization signal identifier.

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

[0039] Specifically, according to one aspect of the present application, the first node is user equipment.

[0040] Specifically, according to one aspect of the present application, the first node is an access network device.

[0041] Specifically, according to one aspect of the present application, the first node is a vehicle-mounted terminal.

[0042] Specifically, according to one aspect of the present application, the first node is a mobile phone.

[0043] The present application discloses a first node used for wireless communication, comprising:

[0044] A first receiver sets an identifier of a first cell in a first UE variable, wherein whether the identifier of the first cell set in the first UE variable includes a first type of identifier depends on the number of the first type of identifiers of the first cell; the first type of identifier is indicated by a synchronization signal;

[0045] Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type identifier depends on the number of the first type identifiers of the first cell, including: only when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type identifier.

[0046] As an example, compared with traditional solutions, this application has the following advantages:

[0047] The first type identifier of the first cell may be recorded only when necessary, thus saving signaling overhead.

[0048] Improved the granularity and precision of network optimization.

[0049] Better support for richer communication scenarios, better support for mobility management, and better support for multi-TRP transmission.

[0050] Better support for coverage enhancement technologies including RIS (reconfigurable intelligent surface).

[0051] Better support for self-optimization reduces network operating costs and improves service quality.

[0052] It is very flexible and is applicable whether the number of first-class identifiers is equal to 1 or greater than 1. At the same time, when the number of first-class identifiers is equal to 1, excluding the first-class identifier can save signaling overhead and memory. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0054] FIG1 shows a flowchart of setting an identifier of a first cell in a first UE variable according to an embodiment of the present application;

[0055] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0056] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0057] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0058] FIG5 shows a flowchart of wireless signal transmission according to an embodiment of the present application;

[0059] FIG6 shows a schematic diagram of a first type of identification according to an embodiment of the present application;

[0060] FIG7 is a schematic diagram showing a synchronization signal indicating a first type of identification according to an embodiment of the present application;

[0061] FIG8 shows a schematic diagram showing that the identifier of the first cell set in the first UE variable includes a first type of identifier according to an embodiment of the present application;

[0062] FIG9 illustrates a schematic diagram of a processing device used in a first node according to an embodiment of the present application;

[0063] FIG10 illustrates a schematic diagram of a processing device used in a first node according to an embodiment of the present application.

[0064] Implementation Method

[0065] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0066] Example 1

[0067] Example 1 illustrates a flowchart of setting the identifier of the first cell in the first UE variable according to an embodiment of the present application, as shown in Figure 1. In Figure 1, each box represents a step, and it is particularly important to emphasize that the order of the boxes in the figure does not represent the temporal sequence between the steps represented.

[0068] In embodiment 1, the first node in the present application sets the identifier of the first cell in the first UE variable in step 101;

[0069] Whether the identifier of the first cell set in the first UE variable includes a first type identifier depends on the number of the first type identifiers of the first cell; the first type identifier is indicated by a synchronization signal;

[0070] Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type identifier depends on the number of the first type identifiers of the first cell, including: only when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type identifier.

[0071] As an embodiment, the first node is a UE (User Equipment).

[0072] As an embodiment, the first node is in an RRC connected state.

[0073] As an embodiment, the first node is in a non-RRC connected state.

[0074] As an embodiment, any parameter in the present application may be either configured by the network or generated by the first node according to an internal algorithm, such as random.

[0075] As an example, the value of any parameter in this application, including but not limited to the value of a timer and the value of a counter, is limited unless otherwise stated.

[0076] As a sub-embodiment of this embodiment, the upper limit of the value of any parameter in this application is 1024 times of 65536.

[0077] As a sub-embodiment of this embodiment, the upper limit of the value of any parameter in this application is 65536 or 65535.

[0078] As a sub-embodiment of this embodiment, the upper limit of the value of any parameter in this application is 1024.

[0079] As a sub-embodiment of this embodiment, the upper limit of the value of any parameter in this application is 640 or 320.

[0080] As an embodiment, the present application is directed to NR.

[0081] As an embodiment, the present application is directed to wireless communication networks after NR.

[0082] As an embodiment, the serving cell refers to the cell where the UE is camped. Performing a cell search includes the UE searching for a suitable cell in the 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 of the UE relative to the UE. Camping on a cell in the RRC idle state or RRC inactive state has the following benefits: 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, it can do so by performing initial access on the control channel of the camped cell; the network can page the UE; and it allows the UE to receive ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert System) notifications.

[0083] As an embodiment, for a UE in an RRC connected state that is not configured with CA / DC (carrier aggregation / dual connectivity), there is only one serving cell including a primary cell. For a UE in an RRC connected state that is configured with CA / DC (carrier aggregation / dual connectivity), the serving cell is used to indicate a set of cells including a special cell (SpCell) and all cells from the cell. The primary cell (Primary Cell) is an MCG (Master Cell Group) cell that operates on the primary frequency, and the UE performs an initial connection establishment process or initiates connection reconstruction on the primary cell. For dual-connection operation, the special cell refers to the PCell (Primary Cell) of the MCG or the PSCell (Primary SCG Cell) of the SCG (Secondary Cell Group); if it is not a dual-connection operation, the special cell refers to the PCell.

[0084] As an embodiment, the operating frequency of the SCell (Secondary Cell) is a secondary frequency.

[0085] As an example, the individual contents of an information element are referred to as fields.

[0086] As an embodiment, MR-DC (Multi-Radio Dual Connectivity) refers to dual connectivity of E-UTRA and NR nodes, or dual connectivity between two NR nodes.

[0087] As an embodiment, in MR-DC, the wireless access node that provides the control plane connection to the core network is a master node, which can be a master eNB, a master ng-eNB, or a master gNB.

[0088] As an embodiment, MCG refers to a group of serving cells associated with a master node in MR-DC, including SpCells, and may also, optionally, include one or more SCells.

[0089] As an embodiment, PCell is the SpCell of MCG.

[0090] As an embodiment, the PSCell is the SpCell of the SCG.

[0091] As an embodiment, in MR-DC, the radio access node that does not provide a control plane connection to the core network and provides additional resources to the UE is a slave node. The slave node can be an en-gNB, a slave ng-eNB, or a slave gNB.

[0092] As an embodiment, in MR-DC, a group of serving cells associated with a slave node is a SCG (secondary cell group), which includes a SpCell and, optionally, one or more SCells.

[0093] As an embodiment, the SpCell is a PCell or the SpCell is a PSCell.

[0094] As an embodiment, in the RRC inactive state, DC is not used.

[0095] As an example, in the RRC inactive state, CA is typically not used.

[0096] As an embodiment, the RRC information block refers to an information block (information element) in an RRC message.

[0097] As an embodiment, SSB may be referred to as SS\PBCH, or SS block.

[0098] As an embodiment, L1 is Layer-1 or physical layer.

[0099] As an embodiment, the present application is directed to NR and NR evolved networks, such as 6G networks.

[0100] As an embodiment, an RRC information block may include one or more RRC information blocks.

[0101] As an embodiment, an RRC information block may not include any RRC information block, but only include at least one parameter.

[0102] As an embodiment, the radio bearer includes at least a signaling radio bearer and a data radio bearer.

[0103] As an embodiment, a radio bearer is a service or service interface provided by the PDCP layer to a higher layer.

[0104] As a sub-embodiment of this embodiment, the higher layer includes one of the RRC layer, NAS, and SDAP layer.

[0105] As an embodiment, the signaling radio bearer is a service or service interface provided by PDCP to a higher layer.

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

[0107] As an embodiment, the data radio bearer is a service or an interface of services provided by PDCP to a higher layer.

[0108] As a sub-embodiment of this embodiment, the higher layer includes an SDAP layer, at least the former in NAS.

[0109] As an embodiment, after the first node establishes an RRC connection with the network, the first node enters an RRC connection state.

[0110] As a sub-embodiment of this embodiment, the network is a radio access network (RAN).

[0111] As an embodiment, when the first node does not establish an RRC connection with the network, the first node is in an RRC idle state.

[0112] As a sub-embodiment of this embodiment, the network is a radio access network (RAN).

[0113] As an embodiment, when the RRC connection established between the first node and the network is suspended, the first node enters an RRC inactive state.

[0114] As a sub-embodiment of this embodiment, the network is a radio access network (RAN).

[0115] As an embodiment, the first node supports different functions in different RRC states.

[0116] As an embodiment, the first node only supports very limited functions in the non-RRC connected state.

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

[0118] As an embodiment, the non-RRC connected state is or includes an RRC inactive state.

[0119] As an embodiment, the first UE variable is a UE state variable.

[0120] As an embodiment, the first UE variable may have a certain data structure, including multiple fields, and / or multiple fields at different levels.

[0121] As an embodiment, the name of the first UE variable includes report.

[0122] As an embodiment, the name of the first UE variable includes Var.

[0123] As an embodiment, the content in the first UE variable is allowed to be deleted only 48 hours after creation.

[0124] As an embodiment, the first cell is a serving cell of the first node.

[0125] As an embodiment, the first cell is the PCell of the first node.

[0126] As an embodiment, the first cell is the PSCell of the first node.

[0127] As an embodiment, the first cell is a source PCell of the first node.

[0128] As an embodiment, the first cell is the first node destination PCell.

[0129] As an embodiment, the first cell is the first node neighbor PCell.

[0130] As an embodiment, the first cell is an NR cell.

[0131] As an embodiment, the first cell is an NR evolved cell.

[0132] As an embodiment, the first cell is a 6G cell.

[0133] As an embodiment, the identifier of the first cell can be represented by 10 bits.

[0134] As an embodiment, the identifier of the first cell can be represented by 11 bits.

[0135] As an embodiment, the identifier of the first cell can be represented by 12 bits.

[0136] As an embodiment, the identifier of the first cell can be represented by 13 bits.

[0137] As an embodiment, the identifier of the first cell can be represented by 14 bits.

[0138] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting the value of a domain or field in the first UE variable to the identifier of the first cell.

[0139] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting the identifier of the first cell in a report in the first UE variable.

[0140] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting the value of a domain or field of a report in the first UE variable to the identifier of the first cell.

[0141] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting the values ​​of multiple domains or fields in the first UE variable to multiple identifiers of the first cell respectively.

[0142] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting multiple identifiers of the first cell in a report in the first UE variable.

[0143] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting the value of a domain or field of a report in the first UE variable to multiple identifiers of the first cell respectively.

[0144] As an embodiment, setting the identifier of the first cell in the first UE variable includes: setting the field or domain whose name includes cellid in the first UE variable as the identifier of the first cell.

[0145] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, including: the identifier of the first cell set in the first UE variable includes a first type of identifier.

[0146] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, including: the identifier of the first cell set in the first UE variable includes multiple first type identifiers.

[0147] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, which includes: setting or recording a first type of identifier in the first UE variable.

[0148] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, which includes: setting or recording multiple first type identifiers in the first UE variable.

[0149] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, including: setting the value of a domain or field in the first UE variable to one of the first type of identifiers.

[0150] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, including: setting the values ​​of multiple domains or fields in the first UE variable to multiple of the first type of identifiers respectively.

[0151] As an embodiment, the identifier of the first cell set in the first UE variable includes the first type of identifier, including: setting the values ​​of N domains or fields in the first UE variable to N of the first type of identifiers respectively, where N is a positive integer.

[0152] As an embodiment, the identifier of the first cell set in the first UE variable does not include the first type of identifier, which includes: setting an identifier other than the first type of identifier in the first UE variable.

[0153] As an embodiment, the identifier of the first cell set in the first UE variable does not include the first type of identifier, which includes: no identifier other than the first type of identifier is set in the first UE variable.

[0154] As an embodiment, the identifier of the first cell set in the first UE variable does not include the first type of identifier, which includes: setting an identifier other than the first type of identifier in the first report in the first UE variable.

[0155] As an embodiment, the identifier of the first cell set in the first UE variable does not include the first type of identifier, which includes: the first type of identifier is not recorded in the identifier of the first cell set in the first UE variable.

[0156] As an embodiment, the identifier of the first cell set in the first UE variable does not include the first type of identifier, which includes: the identifier of the first cell set in the first UE variable is an identifier other than the first type of identifier.

[0157] As an embodiment, setting the identifier of the first cell in the first UE variable includes recording the identifier of the first cell in the first UE variable.

[0158] As an embodiment, any of the first type identifiers is an identifier of the first cell.

[0159] As an embodiment, what a tracking area is and what a tracking area code is are both well known to those skilled in the art. For further information, reference may be made to 3GPP TS 38.331, 3GPP TS 23.501, and 3GPP TS 24.501.

[0160] As an embodiment, the first type of identifier is not a global cell identifier.

[0161] As an embodiment, the first type of identifier is not a tracking area code.

[0162] As an embodiment, the first type of identifier is not a tracking area identifier.

[0163] As an embodiment, the first type of identifier is a physical layer identifier.

[0164] As an embodiment, the first type of identifiers are all identifiers of the first cells.

[0165] As an embodiment, the first type of identifier belongs to the first cell.

[0166] As an embodiment, the first type of identifier is configured for the first cell.

[0167] As an embodiment, the first type of identifier being indicated by a synchronization signal includes: any one of the first type of identifiers is indicated by a synchronization signal of the first cell.

[0168] As an embodiment, the first type of identifier being indicated by a synchronization signal includes: the number of the first type of identifier is indicated by a synchronization signal of the first cell.

[0169] As an embodiment, the first category identifiers being indicated by the synchronization signal include: since any identifier in the first category identifiers is indicated by the synchronization signal of the first cell, the number of the first category identifiers is also implicitly indicated by the synchronization signal of the first cell.

[0170] As an embodiment, all tracking area codes of the first cell are known to the first node.

[0171] As an embodiment, at least one tracking area code of all the first cells is known to the first node.

[0172] As an embodiment, at least the tracking area code of the registered PLMN (public land mobile network) of the first cell is known to the first node.

[0173] As an embodiment, the global cell identifier and tracking area code of the first cell being known to the first node includes: the first node possessing the global cell identifier and tracking area code of the first cell.

[0174] As an embodiment, the system information block of the first cell indicates the global cell identity and tracking area code of the first cell.

[0175] As an embodiment, the first node may obtain the global cell identity and tracking area code of the first cell by reading the system information block of the first cell, such as SIB1.

[0176] As an embodiment, the global cell identifier and tracking area code of the first cell are known to the first node, including: the first node stores the global cell identifier and tracking area code of the first cell.

[0177] As an embodiment, the meaning of "only when the number of the first category identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first category identifier" is: when the number of the first category identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first category identifier; when the number of the first category identifiers of the first cell is not greater than 1, the identifier of the first cell set in the first UE variable does not include the first category identifier.

[0178] As a sub-embodiment of this embodiment, when the number of the first type of identifiers of the first cell is not greater than 1, the identifier of the first cell set in the first UE variable includes a global cell identifier of the first cell.

[0179] As an embodiment, the fact that the number of the first type of identifiers of the first cell is not greater than 1 means that the number of the first type of identifiers of the first cell is equal to 1.

[0180] As an embodiment, the meaning of the identifier of the first cell set in the first UE variable including the first category identifier only when the number of the first category identifiers of the first cell is greater than 1 is: when the number of the first category identifiers of the first cell is greater than 1, whether the identifier of the first cell set in the first UE variable includes the first category identifier has nothing to do with whether the global cell identifier of the first cell is known.

[0181] As an embodiment, the meaning of the identifier of the first cell set in the first UE variable including the first category identifier only when the number of the first category identifiers of the first cell is greater than 1 is: when the number of the first category identifiers of the first cell is greater than 1, whether the identifier of the first cell set in the first UE variable includes the first category identifier has nothing to do with whether the tracking area code of the first cell is known.

[0182] As an embodiment, the number of the first type identifiers of the first cell is a positive integer.

[0183] As an embodiment, the number of the first type of identifiers of the first cell is limited.

[0184] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 1024.

[0185] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 256.

[0186] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 64.

[0187] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 16.

[0188] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 8.

[0189] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 4.

[0190] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 3.

[0191] As an embodiment, the number of the first type of identifiers of the first cell does not exceed 2.

[0192] As an embodiment, setting the identifier of the first cell in the first UE variable is for self-optimization.

[0193] As an embodiment, when the number of the first type identifiers of the first cell is greater than 1, the frequency of the first cell is set in the first UE variable.

[0194] As an embodiment, when the number of the first type identifiers of the first cell is greater than 1, the tracking area information of the first cell is set in the first UE variable.

[0195] As an embodiment, when the number of the first type of identifiers of the first cell is greater than 1, the global cell identifier of the first cell is set in the first UE variable.

[0196] As an embodiment, along with setting the identifier of the first cell in the first UE variable, the identifier of the PLMN of the first cell is set in the first UE variable.

[0197] As an embodiment, any one of the first type identifiers is PCI.

[0198] As a sub-embodiment of this embodiment, the number of the first type of identifiers is equal to 1.

[0199] As an embodiment, the first type of identifier includes a PCI (physical cell identity).

[0200] As an embodiment, the first type of identifier includes PCI and SSI (synchronization signal identity).

[0201] As an embodiment, the SSI is used to identify an area corresponding to or covered by a synchronization signal.

[0202] As an embodiment, the SSI is used to identify the area corresponding to or covered by a synchronization signal of the first cell.

[0203] As an embodiment, the SSI is used to identify an area within the first cell corresponding to or covered by a synchronization signal of the first cell.

[0204] As an embodiment, the SSI is used to identify the coverage area of ​​the RIS.

[0205] As an embodiment, the synchronization signal includes at least one of a master synchronization signal and a slave synchronization signal.

[0206] As an embodiment, the first type of identifier includes a physical cell identifier and an additional physical cell identifier.

[0207] As an embodiment, the first type of identifier includes an additional physical cell identifier (additional PCI).

[0208] As an embodiment, the additional physical cell identifier is configured for the first cell.

[0209] As an embodiment, the additional physical cell identifier is configured for the first cell in a manner other than a system information block.

[0210] As an embodiment, the additional physical cell identifier is configured to the first cell via a dedicated control channel.

[0211] As an embodiment, the additional physical cell identifier is configured to the first cell through ServingCellConfig.

[0212] As an embodiment, the additional physical cell identity is used for scrambling.

[0213] As an embodiment, the additional physical cell identifier is used for scrambling of a PDSCH (physical downlink shared channel) and / or a PUSCH (physical uplink shared channel).

[0214] As an embodiment, the first type of identifiers includes a maximum of 7 additional physical cell identifiers.

[0215] As an embodiment, the first category identifiers are all active or activated.

[0216] As an embodiment, when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the global cell identifier of the first cell.

[0217] As a sub-embodiment of this embodiment, the global cell identifier and the first type identifier of the first cell are recorded in a field or domain in the first UE variable whose name includes cellid.

[0218] As a sub-embodiment of this embodiment, the global cell identifier of the first cell is recorded in the first UE variable and its name includes the cellid field or domain; the first type identifier is recorded in the first UE variable and its name includes the pci field and domain.

[0219] As an embodiment, only when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes any one of the first type of identifiers.

[0220] As an embodiment, the above method has the advantage of being more flexible.

[0221] As an embodiment, only when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes all of the first type of identifiers.

[0222] As an embodiment, the above method has the advantage of being more comprehensive.

[0223] As an embodiment, when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable only includes the former of the first type identifier of the first cell and the global cell identifier of the first cell.

[0224] As an embodiment, when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type identifier of the first cell but does not include the global cell identifier of the first cell.

[0225] As an embodiment, the advantages of the above two embodiments include: saving more recording space, thereby saving uplink signaling overhead.

[0226] As an embodiment, the first type of identifier is not the cell global identifier of the SpCell of the first cell.

[0227] As an embodiment, setting the identifier of the first cell in the first UE variable accompanies the first random access process.

[0228] As a sub-embodiment of this embodiment, the setting of the identifier of the first cell in the first UE variable is performed after completing the first random access procedure.

[0229] As a sub-embodiment of this embodiment, the first random access procedure is any random access procedure.

[0230] As a sub-embodiment of this embodiment, after a random access process, the first node needs to set the identifier of the first cell in the first UE variable; the first random access process is the random access process.

[0231] As a sub-embodiment of this embodiment, the first random access procedure is contention-based.

[0232] As a sub-embodiment of this embodiment, the first random access procedure is contention-free.

[0233] As a sub-embodiment of this embodiment, the first random access procedure is a 4-step random access procedure.

[0234] As a sub-embodiment of this embodiment, the first random access procedure is a 2-step random access procedure.

[0235] As a sub-embodiment of this embodiment, the first random access procedure is used to request system information.

[0236] As a sub-embodiment of this embodiment, the first random access procedure is used for small data transmission.

[0237] As a sub-embodiment of this embodiment, the first random access procedure is performed in the first cell.

[0238] As a sub-embodiment of this embodiment, the first random access procedure is performed in the first cell, including: the first random access procedure uses resources of the first cell.

[0239] As a sub-embodiment of this embodiment, the first random access procedure is performed in the first cell, including: the first random access procedure uses the random access procedure configuration of the first cell.

[0240] As a sub-embodiment of this embodiment, the first random access procedure is performed in the first cell, including: the first random access procedure relies on a synchronization signal of the first cell.

[0241] As a sub-embodiment of this embodiment, the first random access procedure is performed in the first cell, including: the first random access procedure is for the first cell.

[0242] As a sub-embodiment of this embodiment, the identifier of the first cell is set in the first UE variable.

[0243] As a sub-embodiment of this embodiment, along with the first random access process, at least one PLMN of the first cell is set in the first UE variable.

[0244] As a sub-embodiment of this embodiment, along with the first random access procedure, the cause or purpose of the first random access procedure is set in the first UE variable.

[0245] As a sub-embodiment of this embodiment, along with the first random access procedure, public information of the first random access procedure is set in a first UE variable.

[0246] As a sub-embodiment of this embodiment, along with the first random access process, the identifier of the SpCell to which the first cell belongs is set in the first UE variable.

[0247] As a sub-embodiment of this embodiment, along with the first random access process, at least one of the frequency, subcarrier spacing and PRACH (physical random access channel) configuration index of msg1 in the first random access process is set in the first UE variable.

[0248] As a sub-embodiment of this embodiment, along with the first random access process, at least one of the frequency of the random access timing of the MSGA in the first random access process, the subcarrier spacing, the modulation and coding mode, the maximum number of transmissions, the number of occupied physical resource blocks, and the load size of the PUSCH is set in the first UE variable.

[0249] As a sub-embodiment of this embodiment, along with the first random access process, the SSB selected for each attempt in the first random access process is set in the first UE variable.

[0250] As a sub-embodiment of this embodiment, along with the first random access process, the CSI-RS (channel state information reference signal) selected for each attempt in the first random access process is set in the first UE variable.

[0251] As a sub-embodiment of this embodiment, along with the first random access procedure, whether contention is detected in each attempt in the first random access procedure is set in a first UE variable.

[0252] As a sub-embodiment of this embodiment, the first UE variable is VarRA-Report.

[0253] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable includes setting the cellId in an RA-Report in the first UE variable as the identifier of the first cell.

[0254] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable includes setting the cellId in an RA-Report in the first UE variable to the first type identifier of the first cell.

[0255] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable includes setting the physCellId in an RA-Report in the first UE variable to the first type identifier of the first cell.

[0256] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is conducive to optimizing the random access process, reducing random access failures, reducing random access resource consumption, improving the success rate of random access, and better understanding the needs of the terminal.

[0257] As an embodiment, setting the identifier of the first cell in the first UE variable is accompanied by a radio link failure.

[0258] As a sub-embodiment of this embodiment, the radio link failure occurs in the first cell.

[0259] As a sub-embodiment of this embodiment, the radio link failure is detected in the first cell.

[0260] As a sub-embodiment of this embodiment, the radio link failure is a failure of the radio link of the first cell.

[0261] As a sub-embodiment of this embodiment, the first UE variable is a UE variable for recording a radio link failure report.

[0262] As a sub-embodiment of this embodiment, the first UE variable is VarRLF-Report.

[0263] As a sub-embodiment of this embodiment, the first UE variable includes at least one PLMN identifier.

[0264] As a sub-embodiment of this embodiment, whenever a radio link failure occurs, the first node records information of the radio link failure in the first UE variable.

[0265] As a sub-embodiment of this embodiment, whenever a wireless link failure occurs, the first node records the information of the wireless link failure in the first UE variable, and clears the content of the first UE variable before recording the information of the wireless link failure.

[0266] As a sub-embodiment of this embodiment, the first node records the information of the radio link failure in the first UE variable, including setting the identifier of the first cell in the first UE variable.

[0267] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the last served cell in the first UE variable.

[0268] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the first cell in the first UE variable.

[0269] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the last measurement result of the first cell when the radio link failure occurs in the first UE variable.

[0270] As a sub-embodiment of this embodiment, the first cell is the last served cell.

[0271] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the C-RNTI of the first node in the first UE variable.

[0272] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the C-RNTI of the first node used in the cell where the radio link failure occurs in the first UE variable.

[0273] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to record the identifier of the first cell in the failedPCellId field or domain in the first UE variable.

[0274] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the failedPCellId field or domain in the first UE variable to the identifier of the first cell.

[0275] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the failedPCellId-NR field or domain in the first UE variable to the identifier of the first cell.

[0276] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records in the first UE variable the identifier of the cell selected when performing RRC connection reestablishment after the radio link fails.

[0277] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records in the first UE variable the SSB index configured for radio link monitoring on the active BWP when radio link failure occurs.

[0278] As a sub-embodiment of this embodiment, the first UE variable records information about a radio link failure.

[0279] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is beneficial to optimizing the network and reducing or avoiding radio link failures.

[0280] As an embodiment, the setting of the identifier of the first cell in the first UE variable is accompanied by a handover failure.

[0281] As a sub-embodiment of this embodiment, the handover failure occurs in the first cell.

[0282] As a sub-embodiment of this embodiment, the handover failure is detected in the first cell.

[0283] As a sub-embodiment of this embodiment, the handover failure includes failure to successfully handover from the first cell to other cells.

[0284] As a sub-embodiment of this embodiment, the handover failure includes failure to successfully handover from other cells to the first cell.

[0285] As a sub-embodiment of this embodiment, the first UE variable is a UE variable for recording a handover failure report.

[0286] As a sub-embodiment of this embodiment, the first UE variable is VarRLF-Report.

[0287] As a sub-embodiment of this embodiment, the first UE variable includes at least one PLMN identifier.

[0288] As a sub-embodiment of this embodiment, whenever a handover failure occurs, the first node records the handover failure information in the first UE variable.

[0289] As a sub-embodiment of this embodiment, whenever a handover failure occurs, the first node records the handover failure information in the first UE variable, and clears the content of the first UE variable before recording the handover failure information.

[0290] As a sub-embodiment of this embodiment, the first node records the information of the handover failure in the first UE variable, including setting the identifier of the first cell in the first UE variable.

[0291] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the last served cell in the first UE variable.

[0292] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the target cell in the first UE variable.

[0293] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the first cell in the first UE variable.

[0294] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the last measurement result of the first cell when the handover failure occurs in the first UE variable.

[0295] As a sub-embodiment of this embodiment, the first cell is the last served cell.

[0296] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the C-RNTI of the first node in the first UE variable.

[0297] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the C-RNTI of the first node used in the cell where the handover failure occurs in the first UE variable.

[0298] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to record the identifier of the first cell in the failedPCellId field or domain in the first UE variable, and the first cell is the target cell in the switching failure.

[0299] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the failedPCellId field or domain in the first UE variable to the identifier of the first cell, and the first cell is the target cell in the switching failure.

[0300] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the failedPCellId-NR field or domain in the first UE variable to the identifier of the first cell, and the first cell is the target cell in the switching failure.

[0301] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to record the identifier of the first cell in the previousPCellId field or domain in the first UE variable, and the first cell is the source cell in the handover failure.

[0302] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the previousPCellId field or domain in the first UE variable to the identifier of the first cell, and the first cell is the source cell in the handover failure.

[0303] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the previousPCellId-NR field or domain in the first UE variable to the identifier of the first cell, and the first cell is the source cell in the handover failure.

[0304] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records in the first UE variable the identifier of the cell selected when performing RRC connection reestablishment after the handover failure.

[0305] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records in the first UE variable the SSB index configured for radio link monitoring on the active BWP when a handover failure occurs.

[0306] As a sub-embodiment of this embodiment, the first UE variable records information about a handover failure.

[0307] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is beneficial to optimizing the network and reducing or avoiding handover failures.

[0308] As an embodiment, the setting of the identifier of the first cell in the first UE variable is accompanied by a successful handover.

[0309] As a sub-embodiment of this embodiment, the successful handover includes successfully handing over from the first cell to another cell.

[0310] As a sub-embodiment of this embodiment, the successful handover includes successfully handing over from another cell to the first cell.

[0311] As a sub-embodiment of this embodiment, the first UE variable is a UE variable that records a handover success report.

[0312] As a sub-embodiment of this embodiment, the first UE variable is VarSuccessHO-Report.

[0313] As a sub-embodiment of this embodiment, the first UE variable includes at least one PLMN identifier.

[0314] As a sub-embodiment of this embodiment, whenever a handover is successful, the first node records the information of the handover success in the first UE variable.

[0315] As a sub-embodiment of this embodiment, whenever a handover is successful, the first node records the information of the handover success in the first UE variable, and clears the content of the first UE variable before recording the information of the handover success.

[0316] As a sub-embodiment of this embodiment, the first node records the information of successful switching in the first UE variable, including setting the identifier of the first cell in the first UE variable.

[0317] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the source cell in the first UE variable.

[0318] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the target cell in the first UE variable.

[0319] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the first cell in the first UE variable.

[0320] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the measurement result of the neighboring cell in the first UE variable.

[0321] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the C-RNTI of the first node in the first UE variable.

[0322] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the C-RNTI of the first node used in the cell where the handover successfully occurs in the first UE variable.

[0323] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to record the identifier of the first cell in the targetPCellId field or domain in the first UE variable, and the first cell is the target cell in the successful handover.

[0324] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the targetPCellId field or domain in the first UE variable to the identifier of the first cell, and the first cell is the target cell in the successful handover.

[0325] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the targetPCellId-NR field or domain in the first UE variable to the identifier of the first cell, and the first cell is the target cell in the successful handover.

[0326] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to record the identifier of the first cell in the sourcePCellId field or domain in the first UE variable, and the first cell is the source cell in the successful handover.

[0327] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the sourcePCellId field or domain in the first UE variable to the identifier of the first cell, and the first cell is the source cell in the successful handover.

[0328] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is to set the value of the sourcePCellId-NR field or domain in the first UE variable to the identifier of the first cell, and the first cell is the source cell in the successful handover.

[0329] As a sub-embodiment of this embodiment, along with setting the identifier of the first cell in the first UE variable, the first node records the reason for the successful handover in the first UE variable.

[0330] As a sub-embodiment of this embodiment, the first UE variable records information about a successful handover.

[0331] As a sub-embodiment of this embodiment, setting the identifier of the first cell in the first UE variable is beneficial to optimizing the network, ensuring successful handover, and improving the success rate of handover.

[0332] As an embodiment, executing a random access process, executing a system information request in a non-RRC connection state, any one of a wireless link failure, a handover failure, and a handover success triggers setting the identifier of the first cell in the first UE variable.

[0333] As an embodiment, the event that triggers setting the identifier of the first cell in the first UE variable occurs within the first cell.

[0334] Example 2

[0335] Example 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in FIG2 .

[0336] FIG2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5G System (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, an NG-RAN (Next Generation Radio Access Network) 202, a 5G Core Network (5G Core Network) / EPC (Evolved Packet Core) 210, a Home Subscriber Server (HSS) / Unified Data Management (UDM) 220, and Internet services 230. The 5GS / EPS may interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the 5GS / EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure can be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes an NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter receive node), or some other appropriate terminology. The gNB 203 provides an access point to the 5GC / EPC 210 for the UE 201. Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.The gNB 203 connects to the 5GC / EPC 210 via the S1 / NG interface. The 5GC / EPC 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which itself is connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet Services 230. The Internet Services 230 includes the operator's corresponding Internet Protocol services, which may include the Internet, Intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0337] As an embodiment, the first node in this application is UE201.

[0338] As an embodiment, the base station of the second node in this application is gNB203.

[0339] As an embodiment, the wireless link from the UE201 to the NR node B is an uplink.

[0340] As an embodiment, the wireless link from the NR Node B to the UE 201 is a downlink.

[0341] As an embodiment, the UE 201 includes a mobile phone.

[0342] As an embodiment, the UE 201 is a vehicle including a car.

[0343] As an embodiment, the gNB203 is a macrocellular base station.

[0344] As an embodiment, the gNB203 is a micro cell base station.

[0345] As an embodiment, the gNB203 is a pico cell base station.

[0346] As an embodiment, the gNB203 is a flying platform device.

[0347] As an embodiment, the gNB203 is a satellite device.

[0348] Example 3

[0349] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture of the control plane 300 for a first node (UE, gNB) and a second node (gNB, UE), or between two UEs, 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. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first and second nodes, as well as between two UEs, via PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first node between the second node. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling between the second node and the first node. The PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for processing the signaling protocol of the PC5 interface. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first and second nodes in the user plane 350 is generally the same as the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the 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, which is responsible for mapping QoS flows and data radio bearers (DRBs) to support service diversity. SRBs can be considered services or interfaces provided by the PDCP layer to higher layers, such as the RRC layer. In the NR system, SRBs include SRB1, SRB2, and SRB3, each 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 of special significance to the UE. After each UE establishes an RRC connection, it uses SRB1 to transmit RRC signaling. Most signaling is transmitted over SRB1. If SRB1 is interrupted or unavailable, the UE must perform RRC re-establishment. SRB2 is generally used only to transmit NAS signaling or security-related signaling. The UE does not need to configure SRB3. Except for emergency services, the UE must establish an RRC connection with the network for subsequent communication. Although not shown, the first node may have several upper layers above the L2 layer 355. This includes a network layer (e.g., an IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0350] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0351] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0352] As an embodiment, the first message in this application is generated in RRC306.

[0353] As an embodiment, the first request in this application is generated in RRC306.

[0354] As an embodiment, the second message in this application is generated in RRC306.

[0355] As an embodiment, the first signaling in the present application is generated in RRC306 or MAC302 or PHY301.

[0356] Example 4

[0357] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0358] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, and optionally may also include a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0359] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , and optionally may also include a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0360] During transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to the controller / processor 475 at the second communication device 410. The controller / processor 475 implements Layer 2 (L2) functionality. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the Layer 1 (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0361] During 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 via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 layer for L3 processing.

[0362] During transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 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 functionality 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 retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0363] During transmission from the first communications device 450 to the second communications device 410, the functionality at the second communications device 410 is similar to the reception functionality at the first communications device 450 described for transmission from the second communications device 410 to the first communications device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. A controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the first communications device 450 to the second communications device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0364] As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: sets the identifier of the first cell in the first UE variable, whether the identifier of the first cell set in the first UE variable includes the first type of identifier depends on the number of the first type of identifiers of the first cell; the first type of identifier is indicated by a synchronization signal; wherein the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type of identifier depends on the number of the first type of identifiers of the first cell including: only when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type of identifier.

[0365] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating an action when executed by at least one processor, the action including: setting an identifier of a first cell in a first UE variable, whether the identifier of the first cell set in the first UE variable includes a first type of identifier depends on the number of the first type of identifiers of the first cell; the first type of identifier is indicated by a synchronization signal; wherein the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type of identifier depends on the number of the first type of identifiers of the first cell including: only when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type of identifier.

[0366] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0367] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0368] As an embodiment, the first communication device 450 is a UE.

[0369] As an embodiment, the first communication device 450 is a vehicle-mounted terminal.

[0370] As an embodiment, the first communication device 450 is a mobile phone.

[0371] As an embodiment, the second communication device 450 is a relay.

[0372] As an embodiment, the second communication device 410 is a satellite.

[0373] As an embodiment, the second communication device 410 is an aircraft.

[0374] As an embodiment, the second communication device 410 is a base station.

[0375] As an embodiment, the receiver 454 (including the antenna 452 ), the receiving processor 456 and the controller / processor 459 are used to receive the first request in the present application.

[0376] As an embodiment, the receiver 454 (including the antenna 452 ), the receiving processor 456 and the controller / processor 459 are used to receive the first signaling in this application.

[0377] As an embodiment, the transmitter 454 (including the antenna 452), the transmit processor 468 and the controller / processor 459 are used to send the first message in this application.

[0378] As an embodiment, the transmitter 454 (including the antenna 452), the transmit processor 468 and the controller / processor 459 are used to send the second message in the present application.

[0379] Example 5

[0380] Example 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in Figure 5. In Figure 5, U01 corresponds to the first node of the present application. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application, wherein the steps in F51 and F52 are optional.

[0381] For the first node U01, the first signaling is received in step S5101; the identifier of the first cell is set in the first UE variable in step S5102; the second message is sent in step S5103; the first request is received in step S5104; and the first message is sent in step S5105.

[0382] For the second node U02, a first signaling is sent in step S5201; a second message is received in step S5202; a first request is sent in step S5203; and a first message is received in step S5204.

[0383] In embodiment 5, whether the identifier of the first cell set in the first UE variable includes a first type identifier depends on the number of the first type identifiers of the first cell; the first type identifier is indicated by a synchronization signal;

[0384] Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type identifier depends on the number of the first type identifiers of the first cell, including: only when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type identifier.

[0385] As an embodiment, the first node U01 receives the first signaling in an RRC connected state.

[0386] As an embodiment, the first node U01 receives the first signaling in an RRC inactive state.

[0387] As an embodiment, the second node U02 is the base station corresponding to the SpCell of the first node U01.

[0388] As an embodiment, the second node U02 is the PCell of the first node U01 or the base station to which the PCell of the first node U01 belongs.

[0389] As an embodiment, the second node U02 is the PCell when the first node U01 is in the RRC connected state or the base station to which the PCell when the first node U01 is in the RRC connected state belongs.

[0390] As an embodiment, the setting of the identifier of the first cell in the first UE variable is autonomously controlled by the first node U01.

[0391] As an embodiment, the identifier of the first cell set in the first UE variable is fixed.

[0392] As an embodiment, setting the identifier of the first cell in the first UE variable is controlled or configured by the first signaling.

[0393] As an embodiment, the first signaling is RRC reconfiguration signaling.

[0394] As a sub-embodiment of this embodiment, the first node U01 receives the first signaling in an RRC connected state.

[0395] As a sub-embodiment of this embodiment, the first signaling configuration sets the identifier of the first cell in the first UE variable.

[0396] As a sub-embodiment of this embodiment, the first signaling configures the first message.

[0397] As a sub-embodiment of this embodiment, the first signaling configures a first timer, and the first node U01 sends the first message only when the first timer is not running. The sending of the first message triggers the start of the first timer.

[0398] As a sub-embodiment of this embodiment, the first signaling indicates that random access related information is recorded in the first UE variable.

[0399] As a sub-embodiment of this embodiment, the first signaling instructs recording information related to radio link failure in the first UE variable.

[0400] As a sub-embodiment of this embodiment, the first signaling indicates that information related to the handover failure is recorded in the first UE variable.

[0401] As a sub-embodiment of this embodiment, the first signaling indicates that information related to the success of the handover is recorded in the first UE variable.

[0402] As an embodiment, the first signaling is a system information block.

[0403] As a sub-embodiment of this embodiment, the first node U01 receives the first signaling in a non-RRC connected state.

[0404] As a sub-embodiment of this embodiment, the first signaling indicates that random access related information is recorded in the first UE variable.

[0405] As an embodiment, the first signaling is RRC release signaling.

[0406] As a sub-embodiment of this embodiment, the first signaling indicates releasing the RRC connection.

[0407] As a sub-embodiment of this embodiment, the first signaling configuration sets the identifier of the first cell in the first UE variable in a non-RRC connection state.

[0408] As a sub-embodiment of this embodiment, the first signaling indicates that random access related information is recorded in the first UE variable.

[0409] As a sub-embodiment of this embodiment, the first signaling indicates a first time length, and the first node U01 is required to record random access related information in the first UE variable within the first time length.

[0410] As an embodiment, the first signaling is signaling of a protocol layer below the RRC layer.

[0411] As a sub-embodiment of this embodiment, the first signaling is a MAC CE (control element).

[0412] As a sub-embodiment of this embodiment, the first signaling is DCI (downlink control information).

[0413] As a sub-embodiment of this embodiment, the signaling of the protocol layer below the RRC layer has a lower delay than the RRC signaling.

[0414] As a sub-embodiment of this embodiment, the advantage of MAC CE is that it supports HARQ, has high reliability, and is more flexible.

[0415] As a sub-embodiment of this embodiment, the advantages of DCI are low latency and high reliability. The PDCCH (physical downlink control channel) that carries DCI generally has higher reliability.

[0416] As a sub-embodiment of this embodiment, the first signaling indication starts or activates recording in the first UE variable.

[0417] As a sub-embodiment of this embodiment, the first signaling may indicate stopping or deactivating recording in the first UE variable.

[0418] As a sub-embodiment of this embodiment, recording in the first UE variable includes setting the identifier of the first cell in the first UE variable.

[0419] As a sub-embodiment of this embodiment, the first signaling indicates starting or activating recording of information related to random access in the first UE variable.

[0420] As a sub-embodiment of this embodiment, the first signaling indicates starting or activating recording of information related to radio link failure in the first UE variable.

[0421] As a sub-embodiment of this embodiment, the first signaling indicates starting or activating recording of information related to handover failure in the first UE variable.

[0422] As a sub-embodiment of this embodiment, the first signaling indicates starting or activating recording of information related to handover success in the first UE variable.

[0423] As an embodiment, the benefits of using the first signaling include: helping to record in the first UE variable more specifically, and saving more power.

[0424] As an embodiment, the second message is an RRC message.

[0425] As an embodiment, the second message indicates that the first node U01 saves a valid record.

[0426] As an embodiment, the second message indicates that the first node U01 saves a valid random access report.

[0427] As an embodiment, the second message indicates that the first node U01 has saved a valid radio link failure report.

[0428] As an embodiment, the second message indicates that the first node U01 saves a valid handover failure report.

[0429] As an embodiment, the second message indicates that the first node U01 has saved a valid handover success report.

[0430] As an embodiment, the second message is used to trigger the first request.

[0431] As an embodiment, the first request includes a UEInformationRequest.

[0432] As an embodiment, the first request is an RRC message.

[0433] As an embodiment, the first request requests the first message.

[0434] As an embodiment, the first request requests the content recorded in the first UE variable.

[0435] As an embodiment, the first request requests a report related to random access recorded in the first UE variable.

[0436] As an embodiment, the first request requests a report related to radio link failure recorded in the first UE variable.

[0437] As an embodiment, the first request requests a report related to the handover failure recorded in the first UE variable.

[0438] As an embodiment, the first request requests a report related to the success of the handover recorded in the first UE variable.

[0439] As an embodiment, the first request triggers the first message.

[0440] As an embodiment, the first message is generated by the first UE variable.

[0441] As an embodiment, the first node U01 sets the first report in the first message as the first report in the first UE variable.

[0442] As an embodiment, the first report in the first message is an RA-report; the first report in the first UE variable is an RA-Report.

[0443] As an embodiment, the first report in the first message is an RLF-report; the first report in the first UE variable is an RLF-Report.

[0444] As an embodiment, the first report in the first message is a SuccessHO-Report; the first report in the first UE variable is a SuccessHO-Report.

[0445] As an embodiment, the first node U01 sets the first report list in the first message as the first report list in the first UE variable.

[0446] As an embodiment, the first report in the first message is a report in a first report list in the first message.

[0447] As an embodiment, the first report in the first UE variable is a report in a first report list in the first UE variable.

[0448] As an embodiment, the first report in the first message and the first report in the first UE variable have the same data structure.

[0449] As an embodiment, setting the first report in the first message as the first report in the first UE variable is to copy the content of the first report in the first UE variable into the first report in the first message.

[0450] As an embodiment, the first message includes the time when the first report was generated.

[0451] As an embodiment, the first message includes a time from the time recorded in the first UE variable.

[0452] As a quantity, the first message helps the network obtain the content recorded in the first UE variable, which is conducive to further optimization.

[0453] As an embodiment, the first UE variable includes multiple reports, and the first report is one of the multiple reports in the first UE variable.

[0454] As an embodiment, the first UE variable includes multiple reports, and the first report is any one of the multiple reports in the first UE variable.

[0455] As an embodiment, if the network determines that the report in the first UE variable is not of interest to the network, for example, the network has received enough reports related to random access, the network will not send the first request, which is beneficial to saving UE power and network resources.

[0456] As an embodiment, the first message may also be sent proactively.

[0457] As an embodiment, step S5101 precedes step S5102.

[0458] As an embodiment, step S5102 precedes step S5103.

[0459] As an embodiment, step S5103 precedes step S5104.

[0460] As an embodiment, step S5104 precedes step S5105.

[0461] As an embodiment, the first UE variable records information related to random access in the first cell. After the network obtains the content recorded by the first UE variable through the first message, it is beneficial to optimize the random access. For example, if the first UE variable records the failure of random access related to the identifier of the first cell, more resources can be allocated to the identifier of the first cell; if the first UE variable records the number of random access attempts related to the identifier of the first cell, when the number of random access attempts is large, the random access resources related to the identifier of the first cell can be increased; the network can also use the information recorded by the first UE variable to count the number of random accesses initiated by the first cell or the identifier of the first cell within a period of time, and allocate resources that match it as much as possible; when there are multiple first-class identifiers, the random access of the recorded first-class identifiers can be optimized more accurately.

[0462] As an embodiment, the first UE variable records information related to wireless link failure and / or switching failure in the first cell, and the network obtains the information recorded by the first UE variable through the first message, which is conducive to optimizing the wireless link and / or switching; for example, when the wireless link determined by the identifier of the first cell fails, the power of the synchronization signal can be adjusted, or the interference between adjacent cells can be adjusted to increase the reliability of the wireless link; when there are multiple first-class identifiers, the recorded first-class identifiers can be optimized more accurately, such as adjusting the transmission power of the broadcast channel, which is also conducive to discovering potential interference sources; at the same time, in the scenario of switching failure, it is conducive to setting a more reasonable switching threshold for the recorded first-class identifier; at the same time, obtaining the information recorded by the first UE variable, the network is also conducive to understanding how many wireless link failures for the identifier of the first cell have occurred in different terminals within a period of time, or how many switching failures for the identifier of the first cell have occurred, which is conducive to further optimization.

[0463] As an embodiment, the first UE variable records information related to the successful switching of the first cell. The network obtains the information recorded by the first UE variable through the first message, which is conducive to promoting the configuration of the successful switching to other cells, other identifiers other than the identifier of the first cell set in the first UE variable; it is also conducive to checking whether too many resources are configured.

[0464] Example 6

[0465] Example 6 illustrates a schematic diagram of the first type of identification according to an embodiment of the present application, as shown in Figure 6.

[0466] The method proposed in this application does not limit whether the coverage of the first cell in FIG. 6 is circular, or other geometric shapes, or is dynamically changed.

[0467] As an embodiment, the small circle in FIG6 indicates a coverage area associated with one of the first type of identifiers. The method proposed in this application does not limit the shape of any coverage area associated with the first type of identifiers.

[0468] As an embodiment, the small circle in FIG6 corresponds to the coverage area of ​​a synchronization signal of the first cell.

[0469] As an embodiment, the small circle in FIG6 corresponds to the coverage of the signal reflected by a RIS panel in the first cell.

[0470] As an embodiment, when the number of the first type of identification is greater than 1, there will be multiple coverage areas similar to small circles in FIG6 .

[0471] As an embodiment, when the number of the first type identifiers is equal to 1, the small circle in FIG6 overlaps with the first cell.

[0472] As an embodiment, setting one of the first type identifiers in the first UE variable is conducive to grasping finer granularity areas within the first cell, such as random access, wireless link failure, switching failure or switching success information, which is conducive to more careful network optimization.

[0473] As an embodiment, the small circle in FIG6 may overlap with the coverage of the first cell, or may be partially or completely located outside the first cell.

[0474] As a sub-embodiment of this embodiment, the first type of identification includes an additional PCI.

[0475] As an embodiment, setting one of the first type identifiers in the first UE variable is beneficial to the performance when the additional PCI is applied to the first cell, and is beneficial to network optimization in this scenario.

[0476] As a sub-embodiment of this embodiment, the first type of identification includes an additional PCI.

[0477] As an embodiment, along with setting the identifier of the first cell in the first UE variable, beam configuration and transmission configuration information or reflection information is set in the first UE variable.

[0478] As a sub-embodiment of this embodiment, since the emission angle of the RIS is configurable, the coverage at different angles is different. The above method is conducive to more clearly indicating the reflection configuration and is conducive to further network optimization.

[0479] Example 7

[0480] Example 7 illustrates a schematic diagram of a synchronization signal indicating a first type of identification according to an embodiment of the present application, as shown in FIG7 .

[0481] As an embodiment, the first type of identifiers are all configured for the first cell.

[0482] As an embodiment, the first type of identifiers are all used for the first cell.

[0483] As an embodiment, the synchronization signal includes a master synchronization signal and a slave synchronization signal.

[0484] As an embodiment, the master synchronization signal and the slave synchronization signal included in the synchronization signal uniquely determine the first type of identifier.

[0485] As an embodiment, when the number of the first type identifiers is greater than 1, there are multiple primary synchronization signals of the first cell.

[0486] As an embodiment, when the number of the first type identifiers is greater than 1, the first cell has one or more secondary synchronization signals.

[0487] As an embodiment, when the number of the first type identifiers is greater than 1, the first node receives multiple primary synchronization signals.

[0488] As an embodiment, when the number of the first type identifiers is greater than 1, the first node receives one or more slave synchronization signals.

[0489] As an embodiment, any one of the first type identifiers is mapped to a combination of a master synchronization signal and a slave synchronization signal.

[0490] As an embodiment, the first cell only sends part of all primary synchronization signals and secondary synchronization signals.

[0491] As an embodiment, in a 5G NR system, there are a total of 1008 PCIs, so there are 1008 combinations of master synchronization signals and slave synchronization signals.

[0492] As an embodiment, when the number of the first type identifiers is greater than 1, there are multiple combinations of primary synchronization signals and secondary synchronization signals received by the first node.

[0493] As an embodiment, when the number of the first type identifiers is M, there are M combinations of primary synchronization signals and secondary synchronization signals received by the first node, where M is a positive integer.

[0494] As a sub-embodiment of this embodiment, M is greater than 1.

[0495] As a sub-embodiment of this embodiment, the combination of the M primary synchronization signals and secondary synchronization signals received by the first node are all from the first cell.

[0496] As an embodiment, when the number of the first type identifiers is greater than 1, there are multiple combinations of primary synchronization signals and secondary synchronization signals sent by the first cell.

[0497] As an embodiment, when the number of the first type identifiers is M, there are M combinations of primary synchronization signals and secondary synchronization signals sent by the first cell, and M is a positive integer.

[0498] As a sub-embodiment of this embodiment, M is greater than 1.

[0499] As an embodiment, M is not greater than 1008.

[0500] As an embodiment, M is not greater than 2200.

[0501] As an embodiment, the M is finite.

[0502] As an embodiment, when a master synchronization signal and a slave synchronization signal are received, a corresponding first-category identifier is known through a fixed mapping relationship.

[0503] As an embodiment, when the number of the first type of identifiers is greater than 1, the first node receives a combination of a master synchronization signal and a slave synchronization signal, and the combination of the master synchronization signal and the slave synchronization signal received corresponds to one of the first type of identifiers.

[0504] As a sub-embodiment of this embodiment, the identifier of the first cell set in the first UE variable is the one of the first type identifiers corresponding to the received combination of the primary synchronization signal and the secondary synchronization signal.

[0505] As an embodiment, the combination of the master synchronization signal and the slave synchronization signal received by the first node belongs to a first SSB, the first SSB indicates a first SIB1, and the first SIB1 is used to indicate the number of the first type of identifier.

[0506] As an embodiment, the combination of the master synchronization signal and the slave synchronization signal received by the first node belongs to a first SSB, the first SSB indicates a first SIB1, and the first SIB1 is used to indicate whether the number of the first type of identifier is greater than 1.

[0507] As an embodiment, the combination of the master synchronization signal and the slave synchronization signal received by the first node belongs to a first SSB, the first SSB indicates a first SIB1, and the first SIB1 is used to indicate the number of the first type of identifier.

[0508] As an embodiment, the first node is configured with multiple first-category identifiers.

[0509] As a sub-embodiment of this embodiment, the configured multiple first-category identifiers include PCI and at least one additionalPCI.

[0510] As a sub-embodiment of this embodiment, the network configures multiple first-category identifiers for the first node through a dedicated control channel.

[0511] As an embodiment, whether the number of the first type identifiers is greater than 1 is detected by the first node.

[0512] As an embodiment, whether the number of the first type of identifiers is greater than 1 is indicated by the network or configured by the network.

[0513] As an embodiment, whether the number of the first type of identifiers is greater than 1 is implicitly indicated by the network.

[0514] Example 8

[0515] Embodiment 8 illustrates a schematic diagram in which the identifier of the first cell set in the first UE variable includes a first type of identifier according to an embodiment of the present application, as shown in FIG8 .

[0516] As an embodiment, when the number of the first type of identifiers is greater than 1, the identifier of the first cell set in the first UE variable is any one of the first type of identifiers.

[0517] As an embodiment, when the number of the first category identifiers is greater than 1, the identifier of the first cell set in the first UE variable is the first identifier in the first category identifiers.

[0518] As a sub-embodiment of this embodiment, the first identifier is indicated by a synchronization signal.

[0519] As a sub-embodiment of this embodiment, the synchronization signal indicating the first identifier is a synchronization signal for synchronization of the first node.

[0520] As a sub-embodiment of this embodiment, the synchronization signal indicating the first identifier is a synchronization signal with which the first node is currently synchronized.

[0521] As a sub-embodiment of this embodiment, there may be multiple combinations of the master synchronization signal and the slave synchronization signal, but the first node is synchronized with only one of the combinations at the same time.

[0522] As a sub-embodiment of this embodiment, the synchronization signal indicating the first identifier belongs to the first SSB.

[0523] As a sub-embodiment of this embodiment, the first identifier is associated with the first SSB.

[0524] As a sub-embodiment of this embodiment, the random access process initiated by the first node is for the first SSB, and the first UE variable is used to record information related to the random access process.

[0525] As a sub-embodiment of this embodiment, the first SSB indicates a first SIB1, and the first node accesses the network through the information configured by the first SIB1.

[0526] As a sub-embodiment of this embodiment, the first SIB1 indicates the first cell.

[0527] As a sub-embodiment of this embodiment, the first SSB defines the first cell.

[0528] As a sub-embodiment of this embodiment, the first random access process initiated by the first node is for the first identifier.

[0529] As a sub-embodiment of this embodiment, the first UE variable is used to record information of the first random access process.

[0530] As a sub-embodiment of this embodiment, the configuration of the first random access procedure is indicated by the network.

[0531] As a sub-embodiment of this embodiment, the first random access procedure initiated by the first node is based on a PDCCH command.

[0532] As a sub-embodiment of this embodiment, the first random access procedure is used for beam failure recovery.

[0533] As a sub-embodiment of this embodiment, the first random access procedure triggers setting the identifier of the first cell in the first UE variable.

[0534] As a sub-embodiment of this embodiment, the benefits of the above method include: avoiding network misoperation, better supporting scenarios with multiple first-class identifiers, better supporting self-optimization, better optimizing the random access process, helping to avoid wireless link failure, and helping to improve the success rate of switching.

[0535] Example 9

[0536] Embodiment 9 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG9 . In FIG9 , the processing device 900 in the first node includes a first receiver 901 and a first transmitter 902 .

[0537] In Embodiment 9, a first receiver 901 sets an identifier of a first cell in a first UE variable, and whether the identifier of the first cell set in the first UE variable includes a first-type identifier depends on the number of the first-type identifiers of the first cell; the first-type identifier is indicated by a synchronization signal;

[0538] Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first type identifier depends on the number of the first type identifiers of the first cell, including: only when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first type identifier.

[0539] As an embodiment, the first transmitter 902 sets the first report in the first message as the first report in the first UE variable; and sends the first message;

[0540] The step of setting the identifier of the first cell in the first UE variable includes setting the identifier of the first cell in a first report in the first UE variable.

[0541] As an embodiment, when the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the global cell identifier of the first cell.

[0542] As an embodiment, when the number of the first type identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable only includes the former of the first type identifier of the first cell and the global cell identifier of the first cell.

[0543] As an embodiment, the setting of the identifier of the first cell in the first UE variable accompanies a first random access procedure, and the first random access procedure is performed in the first cell;

[0544] The first UE variable is a UE variable for recording random access reports.

[0545] As an embodiment, the setting of the identifier of the first cell in the first UE variable is accompanied by a radio link failure, and the radio link failure occurs in the first cell;

[0546] The first UE variable is a UE variable for recording a radio link failure report.

[0547] As an embodiment, the setting of the identifier of the first cell in the first UE variable is accompanied by a handover failure, and the first cell is a source cell or a target cell of the handover failure;

[0548] The first UE variable is a UE variable for recording a radio link failure report.

[0549] As an embodiment, an identifier of a first cell is set in the first UE variable to accompany a successful handover, where the first cell is a source cell or a target cell of the successful handover;

[0550] The first UE variable is a UE variable that records a successful handover report.

[0551] As an embodiment, the first type of identifier includes a physical cell identifier and an additional physical cell identifier.

[0552] As an embodiment, the first type of identifier includes a physical cell identifier and a synchronization signal identifier.

[0553] As an embodiment, the first node is a user equipment (UE).

[0554] As an embodiment, the first node is a terminal that supports a large delay difference.

[0555] As an embodiment, the first node is a terminal supporting NTN.

[0556] As an embodiment, the first node is an aircraft or a ship.

[0557] As an embodiment, the first node is a mobile phone or a vehicle-mounted terminal.

[0558] As an embodiment, the first node is a terminal supporting MUSIM.

[0559] As an embodiment, the first node is an Internet of Things terminal or an industrial Internet of Things terminal.

[0560] As an embodiment, the first node is a device that supports low-latency and high-reliability transmission.

[0561] As an embodiment, the first receiver 901 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Example 4.

[0562] As an embodiment, the first transmitter 902 includes at least one of the antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, or data source 467 in Example 4.

[0563] Example 10

[0564] Embodiment 10 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG10. In FIG10, the processing device 1000 in the first node includes a first receiver 1001 and a first transmitter 1002.

[0565] In embodiment 10, the first receiver 1001 sets an identifier of a first cell in a first UE variable, including setting a first-type identifier of the first cell and setting a global cell identifier of the first cell; the first-type identifier is indicated by a synchronization signal;

[0566] The global cell identity and tracking area code of the first cell are known to the first node.

[0567] As an embodiment, the above method aims to solve the following problems: in a scenario where the identifier of the first cell is set in the first UE variable, how to record the identifier information of the first cell more precisely based on setting the global cell identifier of the first cell.

[0568] As an embodiment, the benefits of the above method include: greater flexibility, avoiding network misoperation, better support for scenarios with multiple first-class identifiers, better support for self-optimization, better optimization of the random access process, which is conducive to avoiding wireless link failure and improving the success rate of switching.

[0569] As an embodiment, the first transmitter 1002 sets the first report in the first message as the first report in the first UE variable; sends the first message;

[0570] The step of setting the identifier of the first cell in the first UE variable includes setting the identifier of the first cell in a first report in the first UE variable.

[0571] As an embodiment, the number of the first type of identifiers of the first cell is greater than 1.

[0572] As an embodiment, in a scenario where there are multiple first-type identifiers of the first cell, the method proposed in the present application can more precisely indicate which first identifier of the first cell has failed, which is beneficial to network optimization.

[0573] As an embodiment, the setting of the identifier of the first cell in the first UE variable accompanies a first random access procedure, and the first random access procedure is performed in the first cell;

[0574] The first UE variable is a UE variable for recording random access reports.

[0575] As an embodiment, the setting of the identifier of the first cell in the first UE variable is accompanied by a radio link failure, and the radio link failure occurs in the first cell;

[0576] The first UE variable is a UE variable for recording a radio link failure report.

[0577] As an embodiment, the setting of the identifier of the first cell in the first UE variable is accompanied by a handover failure, and the first cell is a source cell or a target cell of the handover failure;

[0578] The first UE variable is a UE variable for recording a radio link failure report.

[0579] As an embodiment, an identifier of a first cell is set in the first UE variable to accompany a successful handover, where the first cell is a source cell or a target cell of the successful handover;

[0580] The first UE variable is a UE variable that records a successful handover report.

[0581] As an embodiment, the first type of identifier includes a physical cell identifier and an additional physical cell identifier.

[0582] As an embodiment, the first type of identifier includes a physical cell identifier and a synchronization signal identifier.

[0583] As an embodiment, the first node is a user equipment (UE).

[0584] As an embodiment, the first node is a terminal that supports a large delay difference.

[0585] As an embodiment, the first node is a terminal supporting NTN.

[0586] As an embodiment, the first node is an aircraft or a ship.

[0587] As an embodiment, the first node is a mobile phone or a vehicle-mounted terminal.

[0588] As an embodiment, the first node is a terminal supporting MUSIM.

[0589] As an embodiment, the first node is an Internet of Things terminal or an industrial Internet of Things terminal.

[0590] As an embodiment, the first node is a device that supports low-latency and high-reliability transmission.

[0591] As an embodiment, the first receiver 1001 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Example 4.

[0592] As an embodiment, the first transmitter 1002 includes at least one of the antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, or data source 467 in Example 4.

[0593] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, notebooks, vehicle-mounted communication equipment, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhancedMTC) terminals, data cards, network 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 devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR node B) NR node B, TRP (Transmitter Receiver Point, sending and receiving nodes), NTN base stations, satellite equipment, flight platform equipment and other wireless communication equipment.

[0594] The present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node for wireless communication, wherein: include: A first receiver sets an identifier of a first cell in a first UE variable, wherein whether the identifier of the first cell set in the first UE variable includes a first type of identifier depends on the number of the first type of identifiers of the first cell; the first type of identifier is indicated by a synchronization signal; Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first category identifier depends on the number of the first category identifiers of the first cell, including: only when the number of the first category identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first category identifier.

2. The first node according to claim 1, characterized in that: include: A first transmitter sets a first report in a first message as a first report in the first UE variable; sending the first message; The step of setting the identifier of the first cell in the first UE variable includes setting the identifier of the first cell in a first report in the first UE variable.

3. The first node according to claim 1 or 2, characterized in that: When the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes a global cell identifier of the first cell.

4. The first node according to claim 1 or 2, characterized in that: When the number of the first type of identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes only the former of the first type of identifier of the first cell and the global cell identifier of the first cell.

5. The first node according to any one of claims 1 to 3, characterized in that: The setting of the identifier of the first cell in the first UE variable accompanies a first random access procedure, and the first random access procedure is performed in the first cell; The first UE variable is a UE variable for recording a random access report.

6. The first node according to any one of claims 1 to 3, characterized in that: The setting of the identifier of the first cell in the first UE variable is accompanied by a radio link failure, and the radio link failure occurs in the first cell; The first UE variable is a UE variable for recording a wireless link failure report.

7. The first node according to any one of claims 1 to 3, characterized in that: The setting of the identifier of the first cell in the first UE variable is accompanied by a handover failure, wherein the first cell is a source cell or a target cell of the handover failure; The first UE variable is a UE variable for recording a wireless link failure report.

8. The first node according to any one of claims 1 to 3, characterized in that: Setting an identifier of a first cell in a first UE variable to accompany a successful handover, the first cell being a source cell or a target cell of the successful handover; The first UE variable is a UE variable that records a successful switching report.

9. The first node according to any one of claims 1 to 8, characterized in that: The first type of identifiers includes physical cell identifiers and additional physical cell identifiers.

10. The first node according to any one of claims 1 to 8, characterized in that: The first type of identifiers includes physical cell identifiers and synchronization signal identifiers.

11. A method in a first node for wireless communication, wherein: include: An identifier of a first cell is set in a first UE variable, and whether the identifier of the first cell set in the first UE variable includes a first type of identifier depends on the number of the first type of identifiers of the first cell; the first type of identifier is indicated by a synchronization signal; Among them, the global cell identifier and tracking area code of the first cell are known to the first node; whether the identifier of the first cell set in the first UE variable includes the first category identifier depends on the number of the first category identifiers of the first cell, including: only when the number of the first category identifiers of the first cell is greater than 1, the identifier of the first cell set in the first UE variable includes the first category identifier.

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