Network access method and apparatus, UE, and network side device

Abstract

The present application relates to the technical field of communications, and discloses a network access method and apparatus, a UE, and a network side device. The network access method of embodiments of the present application comprises: when a UE has established a first radio resource control (RRC) connection, receiving first signaling from a network side device, wherein the first signaling is used for instructing the UE to execute a dual steering operation, and the dual steering operation is to establish a second RRC connection for the UE.

Description

Network access method, device, UE and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202310922935.4 filed in China on July 25, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a network access method, apparatus, UE, and network-side equipment. Background Art

[0004] With the development of network technology, when a user equipment (UE) has established a primary access and network congestion occurs, the network-side device may want the UE to initiate a secondary access at a specific node based on network policy. However, the UE cannot determine whether the network is congested or is unaware of the network policy, so the UE does not know which cell to initiate the secondary access. If the UE autonomously selects a cell to initiate the secondary access, the secondary access may fail or experience a significant delay.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a network access method, apparatus, UE, and network-side equipment to solve the problem of how the UE can improve the success rate of establishing a second RRC connection and reduce the delay of the second RRC connection when the first RRC connection has been established.

[0007] In a first aspect, a network access method is provided, performed by a UE. The method includes: when the UE has established a first radio resource control (RRC) connection, receiving first signaling from a network-side device, the first signaling being used to instruct the UE to perform a dual steering operation, where the dual steering operation establishes a second RRC connection for the UE.

[0008] In a second aspect, a network access method is provided, which is performed by a network-side device. The method includes: when a UE has established a first RRC connection, the network-side device sends first signaling to the UE; the first signaling is used to instruct the UE to perform a dual steering operation, and the dual steering operation establishes a second RRC connection for the UE.

[0009] In a third aspect, a network access device is provided, applied to a UE. The device includes: a receiving module; the receiving module is configured to receive first signaling from a network-side device when the UE has established a first radio resource control (RRC) connection, the first signaling being configured to instruct the UE to perform a dual steering operation, where the dual steering operation establishes a second RRC connection for the UE.

[0010] In a fourth aspect, a network access device is provided, which is applied to a network-side device. The device includes: a sending module; the sending module is used to send first signaling to the UE when the UE has established a first RRC connection; the first signaling is used to instruct the UE to perform a dual steering operation, and the dual steering operation establishes a second RRC connection for the UE.

[0011] In a fifth aspect, a UE is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0012] In a sixth aspect, a UE is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive first signaling from a network-side device when the UE has established a first radio resource control (RRC) connection, the first signaling being used to instruct the UE to perform a dual steering operation, where the dual steering operation establishes a second RRC connection for the UE.

[0013] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0014] In an eighth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first signaling to the UE when the UE has established a first RRC connection; the first signaling is used to instruct the UE to perform a dual steering operation, and the dual steering operation establishes a second RRC connection for the UE.

[0015] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0016] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0017] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0018] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0019] In this embodiment of the present application, after a UE has established a first RRC connection, it receives first signaling from a network-side device. The first signaling is used to instruct the UE to perform a dual steering operation, which establishes a second RRC connection for the UE. In this way, when resources are congested, the network-side device can promptly instruct or request the UE to perform the dual steering operation through the first signaling. The UE then establishes the second RRC connection based on the signaling, thereby improving the success rate of the second RRC connection and reducing the delay in establishing the second RRC connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of a possible structure of a communication system involved in an embodiment of the present application;

[0021] FIG2 is a flow chart of a network access method according to an embodiment of the present application;

[0022] FIG3 is a second flow chart of a network access method provided in an embodiment of the present application;

[0023] FIG4 is a third flow chart of a network access method provided in an embodiment of the present application;

[0024] FIG5 is a fourth flow chart of a network access method provided in an embodiment of the present application;

[0025] FIG6 is a fifth flow chart of a network access method provided in an embodiment of the present application;

[0026] FIG7 is a sixth flow chart of a network access method provided in an embodiment of the present application;

[0027] FIG8 is a seventh flow chart of a network access method provided in an embodiment of the present application;

[0028] FIG9 is a schematic diagram of a structure of a network access device according to an embodiment of the present application;

[0029] FIG10 is a second structural diagram of a network access device provided in an embodiment of the present application;

[0030] FIG11 is a third structural diagram of a network access device provided in an embodiment of the present application;

[0031] FIG12 is a fourth structural diagram of a network access device provided in an embodiment of the present application;

[0032] FIG13 is a fifth structural diagram of a network access device provided in an embodiment of the present application;

[0033] FIG14 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of the present application;

[0034] FIG15 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of the present application;

[0035] FIG16 is a schematic diagram of the hardware structure of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0037] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0038] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0039] The following is an explanation of the technical terms involved in the technical solutions provided in the embodiments of this application:

[0040] Dual steering:

[0041] Dual steering is a feature in which the core network aggregates two 3GPP access points to provide transmission for UEs.

[0042] In the following scenarios, the network may want to aggregate two 3GPP accesses to improve network resource utilization, UE communication reliability, and user quality of experience (QoE):

[0043] 1) Different Radio Access Technologies (RATs) of a Public Land Mobile Network (PLMN) that does not support LTE-NR eNB NR Dual Connectivity (EN-DC) or 4G NR-5G NR eNB Dual Connectivity (NE-DC);

[0044] 2) PLMN1+PLMN2 / Non-Public Network (NPN), and cannot use Radio Access Network (RAN) Sharing. For example, when a large-scale event or activity is held in a stadium, PLMN2 / NPN is used to provide additional network resources;

[0045] 3) Two non-terrestrial network (NTN) access;

[0046] 4) NTN + terrestrial network (TN); NTN provides additional resources for TN;

[0047] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0048] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0049] The core network device may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application server discovery function (EASDF), unified data management (UDM), unified data storage (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BNSF), network access function (UE ... Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.But not limited to at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network equipment in the NR system is introduced as an example, and the specific type of the core network equipment is not limited.

[0050] The network access method, UE, and network-side device provided in the embodiments of the present application are described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0051] It should be noted that the network side device provided in the embodiment of the present application can be a base station or a core network device.

[0052] FIG2 shows a flow chart of a network access method provided in an embodiment of the present application. As shown in FIG2 , the network access method may include the following step 201:

[0053] Step 201: When a user equipment UE has established a first radio resource control (RRC) connection, the UE receives a first signaling from a network-side device.

[0054] In this embodiment of the present application, the first signaling is used to instruct the UE to perform a dual steering operation.

[0055] Exemplarily, the first signaling may be a display indication. For example, the first signaling may include indication information, where the indication information is used to directly instruct the UE to perform the dual steering operation.

[0056] Exemplarily, the first signaling may also be an implicit indication. For example, the first signaling may include configuration information or auxiliary information. After the UE determines the cell to initiate the second RRC connection based on the configuration information or the auxiliary information, it performs the dual steering operation.

[0057] In this embodiment of the present application, the dual steering operation establishes a second RRC connection for the UE.

[0058] Optionally, in the embodiment of the present application, in combination with FIG. 2 , as shown in FIG. 3 , in the network access method provided in the embodiment of the present application, the above step 201 further includes the following steps 201a and 201b:

[0059] Step 201a: The network-side device sends a first signaling to the UE.

[0060] Step 201b: The UE receives a first signaling from a network-side device.

[0061] In an embodiment of the present application, the above-mentioned first signaling can be a medium access control control element (MAC CE) signaling, or it can be RRC signaling, non-access stratum (NAS) signaling, physical layer signaling, etc., and this application does not limit it.

[0062] It should be noted that the above-mentioned first RRC connection and second RRC connection can also be understood as the first 3GPP access and the second 3GPP access, or as the first network connection and the second network connection. Since the UE needs to establish a NAS connection with the core network after establishing the RRC connection, step 201 can also be understood as, when the UE has established the first NAS connection, the UE establishes a second RRC connection between the UE and the base station after receiving the first signaling from the network-side device, and establishes a NAS connection between the base station and the core network corresponding to the second RRC connection.

[0063] In an embodiment of the present application, if the first signaling is RRC signaling, MAC CE, or physical layer signaling and is sent by the base station to the UE, then before sending the first signaling, the base station may first receive configuration information or auxiliary information related to the first signaling from the core network. If the first signaling is NAS signaling and is sent by the core network to the UE, after receiving the first signaling, the UE NAS layer sends it to the UE AS layer if necessary.

[0064] In the network access method provided in an embodiment of the present application, after a UE has established a first RRC connection, it receives first signaling from a network-side device. The first signaling is used to instruct the UE to perform a dual steering operation, which establishes a second RRC connection for the UE. In this way, when resources are congested, the network-side device can promptly instruct or request the UE to perform the dual steering operation through the first signaling. The UE then establishes the second RRC connection based on the signaling, thereby improving the success rate of the second RRC connection and reducing the delay in establishing the second RRC connection.

[0065] Optionally, in an embodiment of the present application, in combination with FIG. 2 , as shown in FIG. 4 , after the above step 201 , the network access method provided in the embodiment of the present application further includes step 301 :

[0066] Step 301: Based on the first signaling sent by the network-side device, the UE establishes a second RRC connection.

[0067] It should be noted that, when the first RRC connection has been established, the UE initiates a second RRC connection based on the dual steering operation indicated by the first signaling.

[0068] Optionally, in the embodiment of the present application, the above step 301 specifically includes step 301a:

[0069] Step 301a: When initiating the second RRC connection, the UE sets the RRC connection cause value to the first value.

[0070] In an embodiment of the present application, the RRC connection cause value includes an RRC connection establishment cause value or an RRC connection recovery cause value.

[0071] In the embodiment of the present application, the first value is any one of the following:

[0072] Cause values ​​associated with dual steering mode;

[0073] Cause value related to the terminal initiating the call.

[0074] In a possible embodiment, the first signaling may be a display indication. For example, the first signaling may include indication information, and the indication information is used to directly instruct or request the UE to initiate the second RRC connection.

[0075] Optionally, in an embodiment of the present application, the above-mentioned first signaling includes first indication information.

[0076] Exemplarily, the first indication information is used to instruct or request the UE to initiate a second RRC connection.

[0077] Further, optionally, in an embodiment of the present application, before the UE establishes the second RRC connection based on the first signaling sent by the network side device, the UE searches for a cell that meets the second condition, and the UE initiates the second RRC connection to the cell that meets the second condition.

[0078] In this embodiment of the present application, the cell that meets the second condition includes at least one of the following:

[0079] Suitable cell;

[0080] Cells that support dual steering;

[0081] Cells that support UE capability changes;

[0082] The PLMN of this cell supports dual steering.

[0083] Exemplarily, when a cell supports dual steering, the UE determines that the cell is a cell that meets the second condition and initiates a second RRC connection to the cell; or, when a cell supports capability change, the UE determines that the cell is a cell that meets the second condition and initiates a second RRC connection to the cell.

[0084] Optionally, when both the core network and the base station are upgraded to support dual steering, if the base station finds that dual connectivity (DC) cannot be aggregated (i.e., no SN is available), the base station can directly instruct the UE to initiate a second RRC connection. Alternatively, the core network sends a request to the base station, for example, through the UE registration process or a non-UE-related process, which is then sent by the base station to the UE.

[0085] In this way, the UE can initiate the second RRC connection based on the first signaling immediately after receiving the first signaling, thereby reducing the delay in the second access process.

[0086] In another possible embodiment, the network-side device informs the UE of the condition for initiating the second RRC connection by sending a first signaling to the UE.

[0087] Optionally, in an embodiment of the present application, the above-mentioned first signaling includes second indication information, and the second indication information is used to indicate the conditions for the UE to initiate a second RRC connection.

[0088] Exemplarily, when the UE meets the conditions for initiating the second RRC connection, the UE directly initiates the second RRC connection.

[0089] Exemplarily, the condition for the UE to initiate the second RRC connection may include at least one of the following:

[0090] The delay of transmitting data through the first RRC connection established by the UE is greater than a first preset threshold;

[0091] The current network-side device data transmission is congested;

[0092] The amount of transmitted data is greater than a second preset threshold.

[0093] The first preset threshold and the second preset threshold may be configured on the network side or agreed upon by a protocol.

[0094] In one example, when the amount of data currently transmitted by the UE is greater than a second preset threshold, the UE initiates a second RRC connection. Thus, after receiving the first signaling and if the conditions for the UE to initiate the second RRC connection indicated by the first signaling are met, the UE can initiate the second RRC connection as soon as possible, thereby enabling the UE to initiate the second RRC connection as soon as possible if the first RRC connection is currently established.

[0095] In another possible embodiment, the network side device may send configuration information to the UE to assist the UE in initiating an RRC connection to the first cell, and then the UE determines the first cell based on the configuration information sent by the network side device and initiates an RRC connection to the first cell.

[0096] Optionally, in an embodiment of the present application, the above-mentioned first signaling includes first configuration information.

[0097] In the embodiment of the present application, the above-mentioned first configuration information is used to assist the UE in determining the first cell to initiate the RRC connection.

[0098] In this embodiment of the present application, the first configuration information includes at least one of the following:

[0099] RAT type of the cell;

[0100] The frequency of the cell;

[0101] Cell ID information;

[0102] Cell type;

[0103] PLMN information;

[0104] NPN information;

[0105] Network capability information of the cell.

[0106] Exemplarily, the above-mentioned cell ID information can be a physical cell identifier (PCI) or an NR cell global identifier (NCGI).

[0107] Optionally, in this embodiment of the present application, the network capability information of the cell includes at least one of the following:

[0108] First information indicating that the cell supports dual steering operation;

[0109] Second information indicating that the cell supports UE capability change.

[0110] Exemplarily, when the network capability information of the above-mentioned cell includes first information indicating that the cell supports dual steering operation, it indicates that a certain cell supports dual steering operation, and the UE can use the cell as the first cell; or when the network capability information of the above-mentioned cell includes second information indicating that the cell supports UE capability change, it indicates that a certain cell supports UE capability change, and the UE can use the cell as the first cell.

[0111] Exemplarily, the first configuration information may be directly sent to the UE by the core network, or may be sent to the UE by the base station. If the first configuration information is sent to the UE by the base station, the base station may send relevant parameters received from the core network function as the first configuration information to the UE, such as a frequency list or a cell list. Alternatively, the base station may derive the first configuration information based on the relevant parameters received from the core network function and send it to the UE.

[0112] It should be noted that each configuration item in the first configuration information may be one or more. For example, the cell ID information in the first configuration information may include one or more cell IDs, the cell frequency information in the first configuration information may include one or more cell frequencies, and the cell network capability information may include one or more cell network capability information.

[0113] Optionally, in the embodiment of the present application, the network access method provided in the embodiment of the present application further includes step 401:

[0114] Step 401: The UE uses a cell that meets the first configuration information as the first cell, or, when the first configuration information includes cell ID information, uses the cell corresponding to the cell ID information as the first cell.

[0115] It should be noted that the above-mentioned first cell may not be the serving cell of the UE's current first RRC connection.

[0116] Optionally, the UE uses a cell that satisfies the above-mentioned first configuration information as the first cell. For example, when the RAT type of a certain cell is the same as one of the RAT types of the cell configured in the first configuration information, the cell is used as the first cell, and a second RRC connection is initiated to the first cell. Alternatively, when the frequency of a certain cell is the same as one of the frequencies of the cell configured in the first configuration information, the cell is used as the first cell. When the cell ID of a certain cell is the same as one of the cell ID information configured in the first configuration information, the cell is used as the first cell. Alternatively, when the cell type of a certain cell is the same as one of the cell types configured in the first configuration information, the cell is used as the first cell. Alternatively, when the PLMN of a certain cell is the same as one of the PLMN information configured in the first configuration information, the cell is used as the first cell. Alternatively, when the NPN information of a certain cell is the same as one of the NPN information configured in the first configuration information, the cell is used as the first cell. Alternatively, when the cell network capability information configured in the first configuration information indicates that the cell supports dual-steering operation, when a certain cell supports dual-steering operation, the cell is used as the first cell; or, when the cell network capability information configured in the first configuration information indicates that the cell supports UE capability change, when a certain cell supports UE capability change, the cell is used as the first cell.

[0117] Optionally, the UE initiates a second RRC connection with a cell that complies with the first configuration information as a high-priority cell, or the UE initiates a second RRC connection only to a cell that complies with the first configuration information.

[0118] Optionally, the network-side device may include information about the first cell in the first configuration information, and the information about the first cell is used to expedite the UE's establishment of the second RRC connection. For example, the information about the first cell may be a broadcast message of the first cell. In this way, when the UE initiates the second RRC connection on the first cell, it directly uses the broadcast message in the first configuration information without having to read the broadcast message of the first cell, thereby reducing the latency of the second RRC access.

[0119] Optionally, when the first configuration information includes cell ID information, the UE directly uses the cell corresponding to the cell ID information as the first cell and initiates the second RRC connection.

[0120] In this way, the UE can prioritize the cell that meets the first configuration information and make a second RRC connection based on the configuration message sent by the network side device to assist the UE in initiating an RRC connection to the first cell, thereby improving the success rate of the UE's second access when the UE is currently accessing the service cell.

[0121] Optionally, in an embodiment of the present application, the above-mentioned first signaling includes second configuration information.

[0122] In this embodiment of the present application, the second configuration information includes at least one of the following:

[0123] Third information used to indicate that the network-side device supports dual steering operations;

[0124] Fourth information used to indicate the session steering mode adopted for performing the dual steering operation.

[0125] Specifically, the session steering mode, also known as the dual steering mode, may include at least one of the following:

[0126] 1) Active-standby switching: When active access becomes unavailable, the service data flow (SDF) is switched to another available access. When active access becomes available again, the service data flow is switched back.

[0127] 2) Smallest delay: Switches the SDF to the access with the shortest Radio Transfer Technology (RTT). 3GPP and non-3GPP RTTs are measured by the UE and the User Plane Function (UPF).

[0128] 3) Load balancing: When both access points are available, data can be split between them. Data is transferred between the two access points based on the SDF traffic percentage. This is only applicable to non-Guaranteed Bit Rate (Non-GBR) SDFs.

[0129] 4) Priority-based: Data is transmitted over high-priority access. When congestion occurs on this access, data can be split and transmitted over lower-priority access. How the UE and UPF determine whether a high-priority access is congested is implementation-dependent.

[0130] For 2), 3), and 4): Only used for Non-GBR SDF. If the preferred access is unavailable, the other access is used.

[0131] 5) Redundant: Data is duplicated in two accesses.

[0132] The following describes in detail the conditions for sending the first signaling to the UE using two possible embodiments.

[0133] In a first possible embodiment, the UE actively sends a request to the network-side device, so that the network-side device sends the first signaling to the UE according to the request.

[0134] Optionally, in an embodiment of the present application, in combination with FIG. 2 , as shown in FIG. 5 , when the first signaling includes the first configuration information, before the above step 201, the network access method provided in the embodiment of the present application further includes step 501:

[0135] Step 501: When a first condition is met, the UE sends a first request to a network-side device.

[0136] In an embodiment of the present application, the first request is used to request the network side device to send a first signaling.

[0137] Optionally, the first signaling may include first configuration information or second configuration information.

[0138] In the embodiment of the present application, the first condition includes any one of the following:

[0139] The UE is in single access state and requests to enter dual steering mode;

[0140] The UE is in dual steering mode and requests to resume abnormal dual steering transmission.

[0141] Optionally, the single access state is that the UE currently has only one RRC connection, or the UE currently has only one RRC entity.

[0142] Optionally, the above-mentioned "UE is in a single access state and requests to enter a dual steering mode" is used to indicate that the UE requests to establish a second RRC connection when it currently has only one RRC connection. After the UE successfully initiates the second RRC connection or after the core network receives NAS signaling from the UE through the second RRC connection, the UE can be considered to have entered the dual steering mode. At this time, the UE will send a first request to the network-side device, so that the network-side device sends a first signaling to the UE after receiving the first request, to assist the UE in quickly finding a suitable cell for the second RRC connection when initially requesting to establish the second RRC connection.

[0143] Optionally, the phrase "UE is in dual steering mode, requesting restoration of abnormal dual steering transmission" indicates that when a radio link failure occurs in a certain access while the UE is in dual steering mode, the UE initiates reestablishment. During the reestablishment process, the UE needs to select a cell. In this case, the UE sends a first request to the network device, notifying the network device that another access of the UE has experienced a transmission failure, an abnormality, or is in an unreachable state. This triggers the network device to send first signaling to the UE, thereby assisting the UE in quickly finding a suitable cell to restore the access during the reestablishment process.

[0144] Optionally, in the embodiment of the present application, in combination with FIG5 , as shown in FIG6 , in the network access method provided in the embodiment of the present application, the above step 501 further includes the following steps 501a and 501b:

[0145] Step 501a: The UE sends a first request to the network-side device.

[0146] Step 501b: The network-side device receives a first request from the UE.

[0147] Optionally, the network side device may indicate whether the UE is allowed to send the above-mentioned first request to the network side device.

[0148] In an embodiment of the present application, the above-mentioned first request is used by the UE to request the network side device to send a first signaling.

[0149] In this way, the UE can actively request the network side device to send the first signaling (such as the first configuration information) when the first condition is met, so that the UE can quickly find a suitable cell based on the first signaling and initiate an RRC connection on the cell, thereby reducing the delay in the access process.

[0150] In a second possible embodiment, the first signaling may be sent to the UE by the base station based on a fifth instruction sent by a core network function.

[0151] Optionally, the fifth instruction includes at least one of the following:

[0152] third indication information, where the third indication information is used to indicate an event or condition for the UE to enable / execute dual steering;

[0153] Fourth indication information, where the fourth indication information is used to indicate a target mode of the UE in dual steering;

[0154] fifth indication information, where the fifth indication information is used to instruct the UE to perform dual steering;

[0155] Optionally, when the fifth instruction includes the third indication information, the event or condition for the UE to enable / execute dual steering may be network congestion, that is, when the network is congested, the base station sends the first signaling to the UE.

[0156] For example, when network congestion occurs in the serving cell to which the UE is currently connected and the UE has a large data transmission demand, the network may consider using available resources in other cells to provide data transmission for the UE. At this time, the core network function sends a fifth instruction to the base station. Based on the fifth instruction, the base station sends a first instruction to the UE instructing the UE to initiate a second RRC connection. Otherwise, the UE may not actively initiate the second RRC connection, or initiate the second RRC connection later. The base station then immediately sends a first signaling to the UE. Based on the first signaling, the UE initiates a second RRC connection to another cell.

[0157] Optionally, when the fifth instruction includes the fourth indication information, the base station instructs the UE to be in the target mode of dual steering.

[0158] Optionally, the target mode includes at least one of the following: Load-balance, Active-standby, Smallest delay, or Priority-based.

[0159] Specifically, load-balancing mode: When both access points are available, data can be split between them. Data is transferred between the two access points based on the SDF traffic percentage. This mode is only used for non-GBR SDFs.

[0160] Active-standby mode: When active access becomes unavailable, the SDF switches to other available access modes. When active access becomes available again, the SDF switches back.

[0161] Smallest delay mode: switches the SDF to the access with the shortest RTT. The RTT of 3GPP and non-3GPP is obtained through measurements of the UE and UPF.

[0162] Priority-based mode: Data is transmitted over high-priority access points. When congestion occurs on these access points, data can be split and transmitted over lower-priority access points. How the UE and UPF determine whether a high-priority access point is congested is implementation-dependent.

[0163] It should be noted that Smallest delay mode, Load-balancing mode, and Priority-based mode are only used in Non-GBR SDF. If the preferred access is unavailable, another access is used.

[0164] Exemplarily, the base station sends first configuration information to the base station according to the fifth instruction sent by the core network. After the UE receives the first configuration information and initiates a second connection according to the first configuration information, the base station releases the first connection (for example, the above target mode includes active-standby) or continues to maintain the first connection (for example, the above target mode does not include load balancing). When the above target mode includes priority-based, the base station decides whether to enable dual steering immediately or enable it in case of congestion based on the priority connection (for example, if the first connection has the highest priority, it is enabled in case of congestion, and if the second connection has the highest priority, it is enabled immediately).

[0165] In this way, the base station can send the first configuration information to the UE according to the instructions sent by the core network function, so that the UE can quickly find a suitable cell according to the first configuration information and establish an RRC connection to the cell, thereby reducing the delay in the access process.

[0166] Optionally, in this embodiment of the present application, the first signaling is further used to indicate at least one of the following:

[0167] The UE performs dual steering measurements.

[0168] The UE reports the dual steering measurement results.

[0169] Further optionally, in an embodiment of the present application, the first signaling also includes third configuration information.

[0170] In this embodiment of the present application, the third configuration information includes at least one of the following:

[0171] Measurement gap configuration information for performing dual-steering measurements;

[0172] fifth information indicating a measurement object;

[0173] Sixth information indicating whether the dual-steering measurement result is reported;

[0174] Conditions for reporting measurement results.

[0175] Because the terminal requires hardware resources when performing dual-steering measurements, which may be currently transmitting data on the first access, there is a conflict between the measurement on the second access and the data transmission on the first access. Therefore, the network can configure a measurement gap for performing dual-steering measurements. This gap configuration can be a time interval, either periodic or aperiodic. After receiving the gap configuration, the UE performs dual-steering measurements within the time interval indicated by the gap. During this time interval, the UE may not transmit data on the first access, for example, it may not monitor PDCCH scheduling or perform certain uplink transmissions. When not within this gap time interval, the UE needs to continue monitoring network scheduling on the first access.

[0176] Optionally, the measurement object may include at least one of the following: RAT, frequency, cell, reference signal type, or reference signal resource.

[0177] For example, the network side device can instruct the UE to measure NR frequencies 1, 2, and 3, and perform SSB measurements based on the SS / PBCH block measurement timing configuration (SMTC) of frequencies 1, 2, and 3.

[0178] Optionally, the above measurement results may be the results obtained after the UE measures the measurement object. The network side device may instruct the UE to report the reference signal received power (RSRP) measurement result, the reference signal received quality (RSRQ) measurement result, and the signal-to-noise and interference ratio (SINR) measurement result. The network side device may also instruct the UE to report the cell level measurement result and the beam level measurement result. The network side device may also instruct the UE to report the derivation method of the cell level measurement result, for example, the network side device instructs the UE to derive the cell level measurement result based on the measurement results of N beams that exceed the quality threshold X.

[0179] Optionally, the condition for reporting the measurement results can be a predefined event (such as signal quality reaching a preset threshold) or periodic reporting. In addition, in order to control the signaling overhead reported by the UE, the network-side device can also limit the UE to only report the measurement results of specific objects, or not report the measurement results of specific objects.

[0180] In this way, the UE can perform dual steering measurement according to the first signaling instruction. After obtaining the measurement result, the UE can determine the target cell based on the measurement result and initiate the second RRC connection to the cell, so as to reduce the delay of the UE in establishing the second RRC connection.

[0181] The following describes in detail two possible embodiments of whether the measurement result is reported to the network-side device.

[0182] In a first possible embodiment, the third configuration information includes the above-mentioned sixth information, which indicates that the measurement result does not need to be reported to the network side device. The UE can directly determine the second cell to which the UE can connect based on the measurement result from the cell where the measurement is performed, and initiate a second RRC connection to the second cell.

[0183] Further optionally, in the embodiment of the present application, the network access method provided in the embodiment of the present application further includes step 601:

[0184] Step 601: When the sixth information indicates that the measurement result is not to be reported, the UE determines a second cell based on the measurement result.

[0185] Optionally, the second cell may be a cell other than the serving cell in which the current UE establishes the first RRC connection.

[0186] Optionally, the sixth information is used to indicate whether the measurement result is reported, and may be an implicit indication. For example, when the sixth information is not configured in the third configuration information or does not appear in the received first signaling, it indicates that the network side configures the UE not to report the measurement result.

[0187] Optionally, the sixth information is used to indicate whether the measurement result is to be reported, and may be an explicit indication. For example, the sixth information is directly configured in the third configuration information to indicate whether the measurement result is to be reported, or indicates not to report the measurement result.

[0188] Exemplarily, if the measurement result does not need to be reported, the UE may determine a second cell from the measured cells based on the measurement result, so that the UE may initiate a second RRC connection to the second cell.

[0189] Optionally, after receiving the third configuration information, the UE preferentially measures the measurement object indicated in the third configuration information. If the sixth information indicates that the measurement result is not to be reported, the UE may determine the second cell based on the measurement result and initiate the second access on the second cell. If the UE finds that the measurement result of the measurement object indicated in the third configuration information is not good enough after measurement, for example, does not meet the residency condition, the UE may measure measurement objects other than those in the third configuration information to find a suitable cell to initiate the second access.

[0190] In this way, after completing the measurement and obtaining the measurement result, the UE can quickly select a cell that meets the requirements for the UE to perform the second RRC connection according to the measurement result, thereby reducing the delay in the UE performing the second RRC access process.

[0191] In a second possible embodiment, the third configuration information includes the sixth information, which indicates that the measurement result needs to be reported to the network side device. The network side device determines the second cell where the UE can initiate the second RRC connection based on the measurement report reported by the UE.

[0192] Optionally, in the embodiment of the present application, the network access method provided in the embodiment of the present application further includes step 701:

[0193] Step 701: When the sixth information indicates that the measurement result should be reported, the UE reports the measurement result to the network side device.

[0194] Optionally, in an embodiment of the present application, as shown in FIG7 , in the network access method provided in the embodiment of the present application, the above step 701 further includes the following steps 701a and 701b:

[0195] Step 701a: The UE sends the measurement result to the network side device.

[0196] Step 701b: The network-side device receives the measurement result from the UE.

[0197] Optionally, the above measurement result is used to determine the second cell.

[0198] Optionally, in the embodiment of the present application, after the above step 701, the network access method provided in the embodiment of the present application further includes step 801:

[0199] Step 801: The UE receives fourth signaling from a network-side device.

[0200] Optionally, the fourth signaling may be sent by the network side device through a NAS message or RRC signaling.

[0201] In the embodiment of the present application, the fourth instruction is used to instruct the UE to report the fourth configuration information of the second cell.

[0202] In this embodiment of the present application, the fourth configuration information includes at least one of the following:

[0203] ID information of the second cell;

[0204] RAT type of the second cell;

[0205] Frequency information of the second cell;

[0206] PLMN information of the second cell;

[0207] Type of the second cell;

[0208] signal quality of the second cell;

[0209] Broadcast message of the second cell;

[0210] Network capability information of the second cell.

[0211] Optionally, in an embodiment of the present application, after the UE receives the fourth instruction, the UE obtains fourth configuration information of the second cell based on the fourth instruction, and reports the obtained fourth configuration information to the network side device.

[0212] Optionally, the first signaling received by the UE from the network side device is determined by the network side device based on the fourth configuration information.

[0213] Optionally, the above-mentioned "reporting the obtained fourth configuration information to the network side device" can be sent directly by the UE to the core network through a NAS message, or the UE can send it to the base station through an RRC message, and then the base station sends it to the core network.

[0214] Exemplarily, after the UE receives the fourth signaling sent by the network side device, the UE obtains the fourth configuration information of the first cell, and then the UE sends the obtained fourth configuration information to the network side device. The network side device then determines the second cell based on the fourth configuration information and sends the first signaling to the UE, so that the UE initiates a second RRC connection to the second cell based on the first signaling.

[0215] Optionally, in an embodiment of the present application, referring to FIG. 8 , in the network access method provided in the embodiment of the present application, the above step 801 further includes the following steps 801a and 801b:

[0216] Step 801a: The network-side device sends a fourth signaling to the UE.

[0217] Step 801b: The UE receives fourth signaling from the network side device.

[0218] In this embodiment of the present application, the fourth signaling is used to instruct the UE to report the fourth configuration information of the second cell.

[0219] In this way, since the network side device knows better than the UE which cell is suitable for the UE to establish a second RRC connection, the network side device can determine the appropriate cell based on the measurement results, and based on the configuration information reported by the UE, instruct the UE to initiate a second RRC connection to the cell, thereby enabling the UE to initiate a second RRC connection to the appropriate cell more quickly and improving the success rate of the UE's second RRC connection.

[0220] Optionally, in the embodiment of the present application, the network access method provided in the embodiment of the present application further includes step 901:

[0221] Step 901: When the network side device instructs the UE to initiate a second RRC connection in a third cell, the UE performs unified access control (UAC) based on a preset access type and / or access identifier.

[0222] Alternatively, the UE does not perform UAC.

[0223] Optionally, the third cell is a cell other than the serving cell of the UE's current first RRC connection.

[0224] Optionally, when the UE initiates an RRC connection to the third cell indicated by the network-side device, the UE may not perform UAC when performing UAC on the cell (for example, assuming that the network-side device allows the UE to initiate access after negotiation), or set specific access control parameters to make this access check easier to pass (for example, setting the Access category to 0), or set specific access control parameters so that the network can independently control the access attempt of the dual steering type (for example, setting it to the access category newly introduced for dual steering).

[0225] In this way, the UE performs UAC in a preset access type and / or access identifier, or does not perform UAC, which can reduce the process of the UE initiating a second RRC connection to the cell, thereby reducing the delay.

[0226] It should be noted that in the embodiment of the present application, when the UE receives the first signaling via NAS signaling, the UE NAS layer forwards the information required by the AS layer to the UE AS layer if necessary. When the UE receives the first signaling via RRC, MAC CE, or physical layer signaling, the UE AS layer forwards the information required by the NAS layer to the UE NAS layer if necessary. For example, if the third configuration information is received by the UE NAS layer from the core network, and the third configuration information is related to the UE measurement, and the measurement behavior is the responsibility of the AS layer, the UE NAS layer needs to inform the UE AS layer of all or part of the third configuration information.

[0227] It should be noted that the embodiment of the present application also provides negotiation between the core network (CN) and the RAN, so that the UE initiates an RRC connection to the first cell.

[0228] Specifically, it includes the dual steering addition negotiation process and the dual steering release process.

[0229] Dual steering negotiation process:

[0230] Step 1: The core network sends a dual steering add request to the base station, i.e., provides more resources to the UE as a secondary access. Optionally, the core network provides some auxiliary information for the base station to send relevant configurations to the UE when receiving the dual steering add request, such as UE capabilities (all capabilities or available capabilities), configuration of allowed secondary access, or configuration directly including the first 3GPP access, etc.

[0231] Step 2: The base station sends a response to the core network, which can be an acceptance or rejection of the dual steering addition request.

[0232] Dual steering release process:

[0233] When the user's data volume is small, the core network may initiate this release process. When the above base station is congested, the base station may also initiate this release process. When the UE wants to save energy, it may also initiate this release process. The release process is as follows:

[0234] Step 1: The base station initiates the dual steering release process to the core network.

[0235] Step 2: The core network sends a response to base station 1, which is used to accept (confirm) or reject the dual steering release request.

[0236] In this way, the UE can initiate an RRC connection to the negotiated cell through negotiation between the core network and the RAN, thereby improving the success rate of the UE initiating an RRC connection to the target cell.

[0237] The network access method provided in the embodiment of the present application can be executed by a network access device. In the embodiment of the present application, the network access device provided in the embodiment of the present application is described by taking the network access method executed by the network access device as an example.

[0238] Figure 9 shows a possible structural diagram of a network access device involved in an embodiment of the present application. As shown in Figure 9, the network access device 70 may include: a receiving module 71;

[0239] The receiving module 71 is used to receive a first signaling from a network-side device when the UE has established a first RRC connection. The first signaling is used to instruct the UE to perform a dual-steering operation, and the dual-steering operation is to establish a second RRC connection for the UE.

[0240] Optionally, in an embodiment of the present application, in combination with Figure 9, as shown in Figure 10, the above-mentioned device 70 also includes: a processing module 72; the processing module 72 is used to establish a second RRC connection based on the first signaling after receiving the first signaling from the network side device; the processing module 72 is specifically used to: set the RRC connection cause value to a first value when initiating the second RRC connection; wherein the RRC connection cause value includes an RRC connection establishment cause value or an RRC connection recovery cause value; the first value is any one of the following: a cause value related to a dual-steering operation; a cause value related to a terminal-initiated call.

[0241] Optionally, in an embodiment of the present application, the first signaling includes first indication information, and the first indication information is used to instruct or request the UE to initiate a second RRC connection; or, the first signaling includes second indication information, and the second indication information is used to indicate the conditions for the UE to initiate a second RRC connection.

[0242] Optionally, in an embodiment of the present application, the first signaling includes first configuration information, and the first configuration information is used to assist the UE in determining the first cell for initiating the second RRC connection.

[0243] Optionally, in this embodiment of the present application, the first configuration information includes at least one of the following:

[0244] RAT type of the cell;

[0245] The frequency of the cell;

[0246] Cell ID information;

[0247] Cell type;

[0248] PLMN information;

[0249] NPN information;

[0250] Network capability information of the cell.

[0251] Optionally, in this embodiment of the present application, the network capability information of the cell includes at least one of the following:

[0252] First information indicating that the cell supports dual steering operation;

[0253] Second information indicating that the cell supports UE capability change.

[0254] Optionally, in an embodiment of the present application, the above-mentioned processing module 72 is further used to take the cell that meets the first configuration information as the first cell; or, when the first configuration information includes cell ID information, take the cell corresponding to the cell ID information as the first cell.

[0255] Optionally, in this embodiment of the present application, the first signaling includes second configuration information, and the second configuration information includes at least one of the following:

[0256] Third information used to indicate that the network-side device supports dual-steering operation;

[0257] Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

[0258] Optionally, in the embodiment of the present application, in combination with FIG9 , as shown in FIG11 , the apparatus 70 further includes: a sending module 73; the sending module 73 is configured to, before receiving the first signaling from the network-side device, send a first request to the network-side device if a first condition is met, the first request being used to request the network-side device to send the first signaling;

[0259] The first condition includes any of the following:

[0260] The UE is in single access state and requests to enter dual steering mode;

[0261] The UE is in dual-steering mode and requests to resume abnormal dual-steering transmission.

[0262] Optionally, in this embodiment of the present application, the first signaling is further used to indicate at least one of the following:

[0263] The UE performs dual-steering measurements;

[0264] The UE reports the measurement results of the dual-steering measurement.

[0265] Optionally, in this embodiment of the present application, the first signaling further includes third configuration information;

[0266] The third configuration information includes at least one of the following:

[0267] Measurement gap configuration information for performing dual-steering measurements;

[0268] fifth information indicating a measurement object;

[0269] Sixth information indicating whether the dual-steering measurement result is reported;

[0270] Conditions for reporting measurement results.

[0271] Optionally, in an embodiment of the present application, the third configuration information includes sixth information; the above-mentioned processing module 72 is also used to determine the second cell based on the measurement result and initiate a second RRC connection to the second cell when the sixth information indicates that the measurement result is not reported.

[0272] Optionally, in an embodiment of the present application, the third configuration information includes sixth information; the above-mentioned sending module 73 is further used to report the measurement result to the network side device when the sixth information indicates that the measurement result is to be reported.

[0273] Optionally, in an embodiment of the present application, the above-mentioned receiving module 71 is also used to receive a fourth signaling from the network side device after the UE reports the measurement results to the network side device, and the fourth instruction is used to instruct the UE to report the fourth configuration information of the second cell, and the fourth configuration information is used to establish a second RRC connection.

[0274] Optionally, in this embodiment of the present application, the fourth configuration information includes at least one of the following:

[0275] ID information of the second cell;

[0276] RAT type of the second cell;

[0277] Frequency information of the second cell;

[0278] PLMN information of the second cell;

[0279] Type of the second cell;

[0280] signal quality of the second cell;

[0281] Broadcast message of the second cell;

[0282] Network capability information of the second cell.

[0283] Optionally, in an embodiment of the present application, the above-mentioned processing module 72 is also used to execute unified access control UAC based on a preset access type and / or access identifier when the network side device instructs the UE to initiate a second RRC connection in the third cell, or the UE does not execute UAC.

[0284] FIG12 shows another possible structural diagram of a network access device involved in an embodiment of the present application. As shown in FIG12 , the network access device 80 may include: a sending module 81;

[0285] The sending module 81 is configured to send a first signaling to the UE when the UE has established a first RRC connection. The first signaling is configured to instruct the UE to perform a dual-steering operation, where the dual-steering operation establishes a second RRC connection for the UE.

[0286] Optionally, in an embodiment of the present application, the first signaling includes first indication information, and the first indication information is used to instruct or request the UE to initiate a second RRC connection; or, the first signaling includes second indication information, and the second indication information is used to indicate the conditions for the UE to initiate a second RRC connection.

[0287] Optionally, in an embodiment of the present application, the first signaling includes first configuration information, and the first configuration information is used to assist the UE in determining the first cell for initiating the second RRC connection.

[0288] Optionally, in this embodiment of the present application, the first configuration information includes at least one of the following:

[0289] RAT type of the cell;

[0290] The frequency of the cell;

[0291] Cell ID information;

[0292] Cell type;

[0293] PLMN information;

[0294] NPN information;

[0295] Network capability information of the cell.

[0296] Optionally, in this embodiment of the present application, the network capability information of the cell includes at least one of the following:

[0297] First information indicating that the cell supports dual steering operation;

[0298] Second information indicating that the cell supports UE capability change.

[0299] Optionally, in this embodiment of the present application, the first signaling includes second configuration information, and the second configuration information includes at least one of the following:

[0300] Third information used to indicate that the network-side device supports dual-steering operation;

[0301] Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

[0302] Optionally, in an embodiment of the present application, in combination with Figure 12, as shown in Figure 13, the above-mentioned device 80 also includes: a receiving module 82; the receiving module 82 is used to receive a first request from the UE before the network side device sends the first signaling to the UE, and the first request is used by the UE to request the network side device to send the first signaling.

[0303] Optionally, in this embodiment of the present application, the first signaling is further used to indicate at least one of the following:

[0304] The UE performs dual-steering measurements;

[0305] The UE reports the measurement results of the dual-steering measurement.

[0306] Optionally, in this embodiment of the present application, the first signaling further includes third configuration information;

[0307] The third configuration information includes at least one of the following:

[0308] Measurement gap configuration information for performing dual-steering measurements;

[0309] fifth information indicating a measurement object;

[0310] Sixth information indicating whether the dual-steering measurement result is reported;

[0311] Conditions for reporting measurement results.

[0312] Optionally, in an embodiment of the present application, the third configuration information includes sixth information; the above-mentioned receiving module 82 is further used to receive measurement results from the UE, and the measurement results are used to determine the second cell.

[0313] Optionally, in an embodiment of the present application, the above-mentioned sending module 81 is also used to send a fourth signaling to the UE after the network side device receives the measurement result from the UE, and the fourth signaling is used to instruct the UE to report the fourth configuration information of the second cell, and the fourth configuration information is used to establish a second RRC connection.

[0314] Optionally, in this embodiment of the present application, the fourth configuration information includes at least one of the following:

[0315] ID information of the second cell;

[0316] RAT type of the second cell;

[0317] Frequency information of the second cell;

[0318] PLMN information of the second cell;

[0319] Type of the second cell;

[0320] signal quality of the second cell;

[0321] Broadcast message of the second cell;

[0322] Network capability information of the second cell.

[0323] In the network access device provided in an embodiment of the present application, when a UE has established a first RRC connection, it receives first signaling from a network-side device, the first signaling being used to instruct the UE to perform a dual-steering operation, which establishes a second RRC connection for the UE. In this way, when resources are congested, the network-side device can promptly instruct or request the UE to perform the dual-steering operation through the first signaling, and the UE establishes a second RRC connection according to the signaling, thereby improving the success rate of the second RRC connection and reducing the establishment delay of the second RRC connection.

[0324] The network access device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and the other device can be a server, a network attached storage (NAS), etc., which is not specifically limited in the embodiments of the present application.

[0325] The network access device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 8 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0326] As shown in Figure 14, an embodiment of the present application further provides a communication device 90, including a processor 91 and a memory 92. The memory 92 stores a program or instruction that can be executed on the processor 91. For example, when the communication device 90 is a terminal, the program or instruction, when executed by the processor 91, implements the various steps of the above-mentioned network access method embodiment and can achieve the same technical effect. When the communication device 90 is a network-side device, the program or instruction, when executed by the processor 91, implements the various steps of the above-mentioned network access method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0327] The embodiment of the present application also provides a UE, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps in the method embodiment shown in FIG15 . This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, the UE provided in the embodiment of the present application can be a terminal, and FIG15 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application.

[0328] The terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109 and at least some of the components of the processor 110.

[0329] Those skilled in the art will appreciate that the terminal 100 may further include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 110 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG15 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0330] It should be understood that in an embodiment of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and at least one of other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0331] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 101 may transmit the data to the processor 110 for processing. Furthermore, the RF unit 101 may send uplink data to the network-side device. Typically, the RF unit 101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0332] The memory 109 can be used to store software programs or instructions and various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0333] Processor 110 may include one or more processing units. Optionally, processor 110 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 110.

[0334] Among them, the above-mentioned RF module 101 is used to receive a first signaling from a network side device when the UE has established a first RRC connection. The first signaling is used to instruct the UE to perform a dual-steering operation, and the dual-steering operation establishes a second RRC connection for the UE.

[0335] Optionally, in an embodiment of the present application, the above-mentioned processor 110 is used to establish a second RRC connection based on the first signaling after receiving the first signaling from the network side device; the processor 110 is specifically used to: set the RRC connection cause value to a first value when initiating the second RRC connection; wherein the RRC connection cause value includes an RRC connection establishment cause value or an RRC connection recovery cause value; the first value is any one of the following: a cause value related to a dual-steering operation; a cause value related to a terminal-initiated call.

[0336] Optionally, in an embodiment of the present application, the first signaling includes first indication information, and the first indication information is used to instruct or request the UE to initiate a second RRC connection; or, the first signaling includes second indication information, and the second indication information is used to indicate the conditions for the UE to initiate a second RRC connection.

[0337] Optionally, in an embodiment of the present application, the first signaling includes first configuration information, and the first configuration information is used to assist the UE in determining the first cell for initiating the second RRC connection.

[0338] Optionally, in this embodiment of the present application, the first configuration information includes at least one of the following:

[0339] RAT type of the cell;

[0340] The frequency of the cell;

[0341] Cell ID information;

[0342] Cell type;

[0343] PLMN information;

[0344] NPN information;

[0345] Network capability information of the cell.

[0346] Optionally, in this embodiment of the present application, the network capability information of the cell includes at least one of the following:

[0347] First information indicating that the cell supports dual steering operation;

[0348] Second information indicating that the cell supports UE capability change.

[0349] Optionally, in an embodiment of the present application, the processor 110 is further configured to use a cell that satisfies the first configuration information as the first cell; or, when the first configuration information includes cell ID information, use a cell corresponding to the cell ID information as the first cell.

[0350] Optionally, in this embodiment of the present application, the first signaling includes second configuration information, and the second configuration information includes at least one of the following:

[0351] Third information used to indicate that the network-side device supports dual-steering operation;

[0352] Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

[0353] Optionally, in the embodiment of the present application, the RF module 101 is further configured to, before receiving the first signaling from the network-side device, send a first request to the network-side device when a first condition is met, the first request being used to request the network-side device to send the first signaling;

[0354] The first condition includes any of the following:

[0355] The UE is in single access state and requests to enter dual steering mode;

[0356] The UE is in dual-steering mode and requests to resume abnormal dual-steering transmission.

[0357] Optionally, in this embodiment of the present application, the first signaling is further used to indicate at least one of the following:

[0358] The UE performs dual-steering measurements;

[0359] The UE reports the measurement results of the dual-steering measurement.

[0360] Optionally, in this embodiment of the present application, the first signaling further includes third configuration information;

[0361] The third configuration information includes at least one of the following:

[0362] Measurement gap configuration information for performing dual-steering measurements;

[0363] fifth information indicating a measurement object;

[0364] Sixth information indicating whether the dual-steering measurement result is reported;

[0365] Conditions for reporting measurement results.

[0366] Optionally, in an embodiment of the present application, the third configuration information includes sixth information; the above-mentioned processor 110 is further used to determine the second cell based on the measurement result and initiate a second RRC connection to the second cell when the sixth information indicates that the measurement result is not reported.

[0367] Optionally, in an embodiment of the present application, the third configuration information includes sixth information; the above-mentioned radio frequency module 101 is further used to report the measurement result to the network side device when the sixth information indicates that the measurement result is to be reported.

[0368] Optionally, in an embodiment of the present application, the above-mentioned RF module 101 is also used to receive a fourth signaling from the network side device after the UE reports the measurement results to the network side device, and the fourth instruction is used to instruct the UE to report the fourth configuration information of the second cell, and the fourth configuration information is used to establish a second RRC connection.

[0369] Optionally, in this embodiment of the present application, the fourth configuration information includes at least one of the following:

[0370] ID information of the second cell;

[0371] RAT type of the second cell;

[0372] Frequency information of the second cell;

[0373] PLMN information of the second cell;

[0374] Type of the second cell;

[0375] signal quality of the second cell;

[0376] Broadcast message of the second cell;

[0377] Network capability information of the second cell.

[0378] Optionally, in an embodiment of the present application, the above-mentioned processor 110 is further used to perform unified access control UAC based on a preset access type and / or access identifier when the network device instructs the UE to initiate a second RRC connection in the third cell, or the UE does not perform UAC.

[0379] In the terminal provided in the embodiments of the present application, when the UE has established a first RRC connection, it receives first signaling from a network-side device, the first signaling being used to instruct the UE to perform a dual-steering operation, which establishes a second RRC connection for the UE. In this way, when resources are congested, the network-side device can promptly instruct or request the UE to perform the dual-steering operation through the first signaling, and the UE establishes the second RRC connection according to the signaling, thereby improving the success rate of the second RRC connection and reducing the establishment delay of the second RRC connection.

[0380] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment Figures 2 to 6, and achieve the same or corresponding technical effects. To avoid repetition, they will not be repeated here.

[0381] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiments shown in Figures 2 to 8. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this network-side device embodiment and can achieve the same technical effects.

[0382] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 16, the network-side device 1200 includes an antenna 121, a radio frequency device 122, a baseband device 123, a processor 124, and a memory 125. Antenna 121 is connected to radio frequency device 122. In the uplink direction, radio frequency device 122 receives information via antenna 121 and sends the received information to baseband device 123 for processing. In the downlink direction, baseband device 123 processes the information to be transmitted and sends it to radio frequency device 122. Radio frequency device 122 processes the received information and then sends it through antenna 121.

[0383] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 123 , which includes a baseband processor.

[0384] The baseband device 123 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 16, one of the chips is, for example, a baseband processor, which is connected to the memory 125 through a bus interface to call the program in the memory 125 to execute the network device operations shown in the above method embodiment.

[0385] The network side device may further include a network interface 126 , which is, for example, a Common Public Radio Interface (CPRI).

[0386] Specifically, the network side device 1200 of an embodiment of the present invention also includes: instructions or programs stored in the memory 125 and executable on the processor 124. The processor 124 calls the instructions or programs in the memory 125 to execute the methods executed by the modules shown in FIG12 and FIG13 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0387] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned network access method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0388] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0389] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned network access method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0390] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0391] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned network access method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0392] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0393] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0394] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A network access method, applied to a user equipment UE, comprising: When the UE has established a first radio resource control RRC connection, a first signaling is received from a network side device, where the first signaling is used to instruct the UE to perform a dual-steering operation, where the dual-steering operation establishes a second RRC connection for the UE.

2. The method according to claim 1, wherein: After receiving the first signaling from the network side device, the method further includes: Based on the first signaling, the UE establishes a second RRC connection; The UE establishing a second RRC connection includes: setting the RRC connection cause value to the first value when initiating the second RRC connection; The RRC connection cause value includes an RRC connection establishment cause value or an RRC connection recovery cause value; The first value is any one of the following: Cause values ​​associated with dual steering operations; Cause value related to the call initiated by the terminal.

3. The method according to claim 1, wherein: The first signaling includes first indication information, where the first indication information is used to instruct or request the UE to initiate the second RRC connection; or, The first signaling includes second indication information, where the second indication information is used to indicate a condition for the UE to initiate the second RRC connection.

4. The method according to claim 1, wherein: The first signaling includes the first configuration information, where the first configuration information is used to assist the UE in determining a first cell for initiating the second RRC connection.

5. The method according to claim 4, wherein: The first configuration information includes at least one of the following: The radio access technology RAT type of the cell; The frequency of the cell; Cell identification ID information; Cell type; Public land mobile network PLMN information; Non-public network NPN information; Network capability information of the cell.

6. The method according to claim 5, wherein: The network capability information of the cell includes at least one of the following: first information indicating that the cell supports the dual steering operation; Second information indicating that the cell supports the UE capability change.

7. The method according to claim 4, wherein: The method further comprises: The UE uses a cell that satisfies the first configuration information as the first cell; or, In the case where the first configuration information includes cell ID information, a cell corresponding to the cell ID information is used as the first cell.

8. The method according to claim 1, wherein: The first signaling includes the second configuration information, and the second configuration information includes at least one of the following: third information used to indicate that the network-side device supports the dual-steering operation; Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

9. The method according to claim 1, wherein: Before receiving the first signaling from the network side device, the method further includes: When a first condition is met, the UE sends a first request to the network side device, where the first request is used to request the network side device to send the first signaling; The first condition includes any of the following: The UE is in a single access state and requests to enter a dual steering mode; The UE is in dual-steering mode and requests to resume abnormal dual-steering transmission.

10. The method according to claim 1, wherein: The first signaling is further used to indicate at least one of the following: The UE performs dual steering measurement; The UE reports a measurement result of the dual-steering measurement.

11. The method according to claim 10, wherein: The first signaling further includes third configuration information; The third configuration information includes at least one of the following: Measurement gap configuration information for performing dual-steering measurements; fifth information indicating a measurement object; Sixth information indicating whether the measurement result of the dual steering is reported; Conditions for reporting measurement results.

12. The method according to claim 11, wherein: The third configuration information includes the sixth information; and the method further includes: When the sixth information indicates that the measurement result is not to be reported, the UE determines a second cell based on the measurement result and initiates the second RRC connection to the second cell.

13. The method according to claim 11, wherein: The third configuration information includes the sixth information; and the method further includes: When the sixth information indicates reporting of the measurement result, the UE reports the measurement result to the network side device.

14. The method according to claim 13, wherein: After the UE reports the measurement result to the network side device, the method further includes: The UE receives a fourth signaling from the network side device, where the fourth instruction is used to instruct the UE to report fourth configuration information of the second cell, and the fourth configuration information is used to establish the second RRC connection.

15. The method according to claim 14, in, in, The fourth configuration information includes at least one of the following: ID information of the second cell; a RAT type of the second cell; Frequency information of the second cell; PLMN information of the second cell; a type of the second cell; signal quality of the second cell; a broadcast message of the second cell; Network capability information of the second cell.

16. The method according to claim 1, wherein: The method further comprises: When the network side device instructs the UE to initiate the second RRC connection in the third cell, the UE performs unified access control UAC based on a preset access type and / or access identifier, Alternatively, the UE does not perform UAC.

17. A network access method, applied to a network side device, comprising: When the UE has established a first RRC connection, the network side device sends a first signaling to the UE; The first signaling is used to instruct the UE to perform a dual-steering operation, and the dual-steering operation establishes a second RRC connection for the UE.

18. The method according to claim 17, wherein: The first signaling includes first indication information, where the first indication information is used to instruct or request the UE to initiate the second RRC connection; or, The first signaling includes second indication information, where the second indication information is used to indicate a condition for the UE to initiate the second RRC connection.

19. The method according to claim 17, wherein: The first signaling includes the first configuration information, where the first configuration information is used to assist the UE in determining a first cell for initiating the second RRC connection.

20. The method according to claim 18 or 19, wherein: The first configuration information includes at least one of the following: The radio access technology RAT type of the cell; The frequency of the cell; Cell identification ID information; Cell type; Public land mobile network PLMN information; Non-public network NPN information; Network capability information of the cell.

21. The method according to claim 20, wherein: The network capability information of the cell includes at least one of the following: first information indicating that the cell supports the dual steering operation; Second information indicating that the cell supports the UE capability change.

22. The method according to claim 17, wherein: The first signaling includes the second configuration information, and the second configuration information includes at least one of the following: third information used to indicate that the network-side device supports the dual-steering operation; Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

23. The method according to claim 17, wherein: Before the network side device sends the first signaling to the UE, the method further includes: The network side device receives a first request from the UE, where the first request is used by the UE to request the network side device to send the first signaling.

24. The method of claim 17, wherein: The first signaling is further used to indicate at least one of the following: The UE performs dual steering measurement; The UE reports a measurement result of the dual-steering measurement.

25. The method according to claim 24, wherein: The first signaling further includes third configuration information; The third configuration information includes at least one of the following: Measurement gap configuration information for performing dual-steering measurements; fifth information indicating a measurement object; Sixth information indicating whether the measurement result of the dual steering is reported; Conditions for reporting measurement results.

26. The method according to claim 25, wherein: The third configuration information includes the sixth information; and the method further includes: The network side device receives the measurement result from the UE, where the measurement result is used to determine the second cell.

27. The method according to claim 26, wherein: After the network side device receives the measurement result from the UE, the method further includes: The network side device sends a fourth signaling to the UE, where the fourth signaling is used to instruct the UE to report fourth configuration information of the second cell, and the fourth configuration information is used to establish the second RRC connection.

28. The method according to claim 27, in, The fourth configuration information includes at least one of the following: ID information of the second cell; a RAT type of the second cell; Frequency information of the second cell; PLMN information of the second cell; a type of the second cell; signal quality of the second cell; a broadcast message of the second cell; Network capability information of the second cell.

29. A network access device, applied to a user equipment UE, the network access device comprising: Receiver module; The receiving module is used to receive a first signaling from a network side device when the UE has established a first RRC connection, wherein the first signaling is used to instruct the UE to perform a dual-steering operation, and the dual-steering operation is to establish a second RRC connection for the UE.

30. The device according to claim 29, wherein: The device also includes a processing module; The processing module is configured to establish a second RRC connection based on the first signaling after receiving the first signaling from the network side device; The processing module is specifically used for: setting the RRC connection cause value to the first value when initiating the second RRC connection; The RRC connection cause value includes an RRC connection establishment cause value or an RRC connection recovery cause value; The first value is any one of the following: Cause values ​​associated with dual steering operations; Cause value related to the call initiated by the terminal.

31. The device according to claim 29, wherein: The first signaling includes first indication information, where the first indication information is used to instruct or request the UE to initiate the second RRC connection; or, The first signaling includes second indication information, and the second indication information is used to instruct the UE to initiate the Conditions for the second RRC connection.

32. The device according to claim 29, wherein: The first signaling includes the first configuration information, where the first configuration information is used to assist the UE in determining a first cell for initiating the second RRC connection.

33. The device according to claim 32, wherein: The first configuration information includes at least one of the following: The radio access technology RAT type of the cell; The frequency of the cell; Cell identification ID information; Cell type; Public land mobile network PLMN information; Non-public network NPN information; Network capability information of the cell.

34. The device according to claim 33, wherein: The network capability information of the cell includes at least one of the following: first information indicating that the cell supports the dual steering operation; Second information indicating that the cell supports the UE capability change.

35. The device according to claim 32, wherein: The processing module is further configured to use a cell that satisfies the first configuration information as the first cell; Alternatively, when the first configuration information includes cell ID information, the cell corresponding to the cell ID information is used as the first cell.

36. The apparatus of claim 29, wherein: The first signaling includes the second configuration information, and the second configuration information includes at least one of the following: third information used to indicate that the network-side device supports the dual-steering operation; Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

37. The device according to claim 30, wherein: The device also includes: a sending module; The sending module is configured to, before receiving the first signaling from the network side device, send a first request to the network side device if a first condition is met, wherein the first request is used to request the network side device to send the first signaling; The first condition includes any of the following: The UE is in a single access state and requests to enter a dual steering mode; The UE is in dual-steering mode and requests to resume abnormal dual-steering transmission.

38. The device according to claim 29, wherein: The first signaling is further used to indicate at least one of the following: The UE performs dual steering measurement; The UE reports a measurement result of the dual-steering measurement.

39. The device according to claim 38, wherein The first signaling further includes third configuration information; The third configuration information includes at least one of the following: Measurement gap configuration information for performing dual-steering measurements; fifth information indicating a measurement object; Sixth information indicating whether the measurement result of the dual steering is reported; Conditions for reporting measurement results.

40. The device according to claim 39, wherein The third configuration information includes the sixth information; The processing module is further configured to determine a second cell based on the measurement result and initiate the second RRC connection to the second cell when the sixth information indicates that the measurement result is not reported.

41. The apparatus of claim 39, wherein: The third configuration information includes the sixth information; the sending module is further used to report the measurement result to the network side device when the sixth information indicates that the measurement result is to be reported.

42. The device according to claim 41, wherein The receiving module is also used to receive a fourth signaling from the network side device after the UE reports the measurement result to the network side device, and the fourth instruction is used to instruct the UE to report fourth configuration information of the second cell, and the fourth configuration information is used to establish the second RRC connection.

43. The device according to claim 42, in, The fourth configuration information includes at least one of the following: ID information of the second cell; a RAT type of the second cell; Frequency information of the second cell; PLMN information of the second cell; a type of the second cell; signal quality of the second cell; a broadcast message of the second cell; Network capability information of the second cell.

44. The apparatus of claim 29, wherein: The processing module is further configured to, when the network side device instructs the UE to initiate the second RRC connection in the third cell, perform unified access control UAC based on a preset access type and / or access identifier, Alternatively, the UE does not perform UAC.

45. A network access device, applied to a network side device, the network access device comprising: Send module; The sending module is used to send a first signaling to the UE when the UE has established a first RRC connection; The first signaling is used to instruct the UE to perform a dual-steering operation, and the dual-steering operation establishes a second RRC connection for the UE.

46. ​​The device according to claim 45, wherein The first signaling includes first indication information, where the first indication information is used to instruct or request the UE to initiate the second RRC connection; or, The first signaling includes second indication information, where the second indication information is used to indicate a condition for the UE to initiate the second RRC connection.

47. The device according to claim 45, wherein The first signaling includes the first configuration information, where the first configuration information is used to assist the UE in determining a first cell for initiating the second RRC connection.

48. The apparatus of claim 47, wherein: The first configuration information includes at least one of the following: The radio access technology RAT type of the cell; The frequency of the cell; Cell identification ID information; Cell type; Public land mobile network PLMN information; Non-public network NPN information; Network capability information of the cell.

49. The apparatus of claim 48, wherein: The network capability information of the cell includes at least one of the following: first information indicating that the cell supports the dual steering operation; Second information indicating that the cell supports the UE capability change.

50. The apparatus of claim 45, wherein: The first signaling includes the second configuration information, and the second configuration information includes at least one of the following: third information used to indicate that the network-side device supports the dual-steering operation; Fourth information for indicating the conversation steering mode adopted for performing the dual steering operation.

51. The apparatus of claim 45, wherein: The device further comprises: a receiving module; The receiving module is used to receive a first request from the UE before the network side device sends the first signaling to the UE, where the first request is used by the UE to request the network side device to send the first signaling.

52. The apparatus of claim 45, wherein: The first signaling is further used to indicate at least one of the following: The UE performs dual steering measurement; The UE reports a measurement result of the dual-steering measurement.

53. The apparatus of claim 52, wherein: The first signaling further includes third configuration information; The third configuration information includes at least one of the following: Measurement gap configuration information for performing dual-steering measurements; fifth information indicating a measurement object; Sixth information indicating whether the measurement result of the dual steering is reported; Conditions for reporting measurement results.

54. The apparatus of claim 53, wherein: The third configuration information includes the sixth information; the receiving module is further used to receive the measurement result from the UE, and the measurement result is used to determine the second cell.

55. The apparatus of claim 54, wherein: The sending module is also used to send a fourth signaling to the UE after the network side device receives the measurement result from the UE, where the fourth signaling is used to instruct the UE to report fourth configuration information of the second cell, and the fourth configuration information is used to establish the second RRC connection.

56. The device according to claim 55, in, in, The fourth configuration information includes at least one of the following: ID information of the second cell; a RAT type of the second cell; Frequency information of the second cell; PLMN information of the second cell; a type of the second cell; signal quality of the second cell; a broadcast message of the second cell; Network capability information of the second cell.

57. A UE, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the network access method according to any one of claims 1 to 16 are implemented.

58. A network side device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the network access method as described in any one of claims 17 to 28 are implemented.

59. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the network access method as described in any one of claims 1 to 16, or implements the steps of the network access method as described in any one of claims 17 to 28.

60. A chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the network access method as described in any one of claims 1 to 16, or the steps of the network access method as described in any one of claims 17 to 28.

61. A computer program product, wherein the program product is executed by at least one processor to implement the steps of the network access method according to any one of claims 1 to 16, or the steps of the network access method according to any one of claims 17 to 28.

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