Methods, apparatus, equipment and storage media for determining terminal access methods

Abstract

This application provides a method, apparatus, device, and storage medium for determining a terminal access method. The method includes: acquiring a System Information Block (SIB) of a first cell, wherein the terminal supports a degraded capability first communication protocol and a standard capability first communication protocol; determining, based on the SIB of the first cell, whether the first communication protocol supported by the first cell includes the degraded capability first communication protocol, wherein the first communication protocol includes the standard capability first communication protocol; if the first communication protocol does not include the degraded capability first communication protocol, determining the first cell information of the first cell, wherein the first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, the initial partial bandwidth (BWP), and cell restriction information; and determining the target access method of the terminal based on the first cell information. This improves the continuity of network usage for the terminal, thereby enhancing the user experience.

Description

Technical Field

[0001] This application relates to the field of network communication, and in particular to a method, apparatus, device and storage medium for determining terminal access mode. Background Technology

[0002] RedCap (Reduced Capability) terminals are lightweight 5G terminals. Compared to ordinary 5G terminals, RedCap terminals have lower power consumption and lower cost. RedCap terminals can support 1T2R (i.e., one antenna for transmission and two antennas for reception) or 1T1R with 20MHz bandwidth in frequency range 1 (FR1).

[0003] The 3rd Generation Partnership Project (3GPP) protocol stipulates that RedCap terminals cannot access 5G networks that do not support RedCap. Furthermore, it specifies that if the 5G network's frequency band is n7 (FDD band), n38, n41, n48, n77, n78, n79, or n104 (TDD band), then standard-capable terminals accessing that 5G network must support 1T4R (i.e., single-antenna transmit, four-antenna receive). In other FR1 frequency bands, standard-capable terminals accessing that 5G network must support at least 1T2R. Under these frequency bands, the configuration requirements for RedCap and standard-capable terminals are essentially the same. However, RedCap terminals cannot access 5G networks on any frequency band that does not support RedCap, resulting in poor network continuity and a poor user experience. Summary of the Invention

[0004] This application provides a method, apparatus, device, and storage medium for determining the terminal access method, so as to improve the continuity of terminal network use and thus improve the user experience.

[0005] Firstly, this application provides a method for determining the terminal access method, including:

[0006] Obtain the System Information Block (SIB) of the first cell; the terminal supports both the reduced capability first communication protocol and the standard capability first communication protocol.

[0007] Based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a reduced capability first communication protocol, wherein the first communication protocol includes a standard capability first communication protocol;

[0008] If the first communication protocol does not include the first communication protocol for reducing capabilities, then the first cell information of the first cell is determined. The first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, initial partial bandwidth (BWP), and cell restriction information.

[0009] Based on the information from the first cell, the target access method for the terminal is determined.

[0010] In one possible implementation, determining the target access method for the terminal to access the first cell based on the first cell information includes:

[0011] The target access method is determined to be a standard access method when any of the following conditions are met:

[0012] The frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or,

[0013] The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or,

[0014] The duplex mode is Frequency Division Duplex (FDD); or...

[0015] The duplex mode is FDD, and the initial BWP is less than or equal to the preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or...

[0016] The duplex mode is Time Division Duplex (TDD), the terminal has 2 receiving antennas, the frequency band corresponding to the first cell requires the standard capability terminal to have at least 2 receiving antennas, and the initial BWP is less than or equal to the preset threshold.

[0017] In one possible implementation, the method further includes:

[0018] The terminal is determined not to access the first cell if any of the following conditions are met:

[0019] The duplex mode is TDD; or...

[0020] The duplex mode is TDD, and the initial BWP is greater than a preset threshold; or,

[0021] The duplex mode is TDD, the terminal has 2 receiving antennas, and the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas.

[0022] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the method further includes:

[0023] The target access method is determined to be either a reduced-capacity access method or a standard access method when any of the following conditions are met:

[0024] The duplex mode is FDD; or...

[0025] The duplex mode is FDD, and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas.

[0026] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the method further includes:

[0027] The target access method is determined to be a standard access method when any of the following conditions are met:

[0028] The cell restriction information prohibits access by degraded capability terminals with two receiving antennas, and the frequency band corresponding to the first cell requires standard capability terminals to have at least two receiving antennas, and the terminal has two receiving antennas; or,

[0029] The cell restriction information prohibits access by reduced-capability terminals with 1 or 2 receiving antennas, and the frequency band corresponding to the first cell requires standard-capability terminals to have at least 2 receiving antennas, and the terminal has 2 receiving antennas.

[0030] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the method further includes:

[0031] If the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas, and the terminal has 1 or 2 receiving antennas, then the target access method is determined to be a reduced capability access method.

[0032] If the cell restriction information prohibits a terminal with reduced capability that has only one receiving antenna from accessing the cell, and the terminal has only one receiving antenna, then it is determined that the terminal will not access the first cell.

[0033] In one possible implementation, after determining the target access method of the terminal, the method further includes:

[0034] Access the first cell according to the target access method.

[0035] In one possible implementation, if the target access method is a standard access method, the terminal has at least one of the following capabilities:

[0036] Supports 16 data radio bearers (DRBs);

[0037] 18-bit Packet Data Convergence Protocol Sequence Number (PDCP SN) length;

[0038] 18-bit Radio Link Control Protocol Acknowledgment Mode Sequence Number (RLC AMSN) length;

[0039] In frequency range 1, the physical downlink channel PDSCH should support 256 quadrature amplitude modulation (QAM).

[0040] No need to support early identification of degraded terminals during random access;

[0041] There is no need to include degraded capability information in the terminal capability message;

[0042] It supports carrier aggregation (CA), multi-standard dual connectivity (MR-DC), dual activation protocol stack (DAPS), conditional primary and secondary cell addition or modification of CPAC, and integrated access backhaul (IAB) functions.

[0043] In one possible implementation, if the target access method is a reduced-capability access method, the terminal has at least one of the following capabilities:

[0044] Supports 8 DRBs;

[0045] Supports 12-bit PDCP SN length;

[0046] Supports 12-bit RLC AM SN length;

[0047] The PDSCH should support 64QAM modulation in frequency range 1.

[0048] Supports early identification of terminals with reduced capabilities during random access;

[0049] It supports including reduced capability information in the terminal capability message.

[0050] In one possible implementation, after determining that the first cell will not be accessed, the method further includes:

[0051] Search for the second cell and determine its cell type;

[0052] Access to the second cell is determined based on the cell type and terminal capabilities.

[0053] In one possible implementation, accessing the second cell, based on the cell type and terminal capabilities, includes:

[0054] If the cell type of the second cell is a 5G cell and the terminal supports 5G, then the terminal accesses the second cell via 5G access.

[0055] If the cell type of the second cell is a 4G cell and the terminal supports 4G, then the terminal accesses the second cell using the 4G access method.

[0056] If the cell type of the second cell is a 3G cell and the terminal supports 3G, then the terminal accesses the second cell via 3G access.

[0057] If the cell type of the second cell is a 2G cell and the terminal supports 2G, then the terminal accesses the second cell using the 2G access method.

[0058] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell, the method further includes:

[0059] Execute the boot-up network search process;

[0060] Before accessing the first cell according to the target access method, the method further includes:

[0061] The terminal capability message is sent to the first network device, the terminal capability message being used to indicate that the terminal supports the first communication protocol as a standard capability.

[0062] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell, the method further includes:

[0063] From the access state of the first communication protocol with reduced capability, or from the access state of the first communication protocol with standard capability, to the third cell supporting the second communication protocol;

[0064] When the terminal is in an idle state, the SIB of the third cell is obtained, and after the preset reselection conditions are met, a search and measurement are initiated to the first cell;

[0065] After accessing the first cell according to the target access method, the process further includes:

[0066] A terminal capability update message is sent to a first network device, the terminal capability update message being used to indicate that the first communication protocol supported by the terminal has been updated.

[0067] In one possible implementation, the first communication protocol is a 5G or 6G protocol; the second communication protocol is lower than the first communication protocol.

[0068] If the first communication protocol is the 5G protocol, then the second communication protocol is the 4G protocol;

[0069] If the first communication protocol is the 6G protocol, then the second communication protocol is the 5G protocol.

[0070] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell, the method further includes:

[0071] Access to the third cell from the access state of the first communication protocol with reduced capabilities, or from the access state of the first communication protocol with standard capabilities;

[0072] When the terminal is in an idle state, the SIB of the third cell is obtained, and after the preset reselection conditions are met, a search and measurement are initiated to the first cell;

[0073] After accessing the first cell according to the target access method, the process further includes:

[0074] A terminal capability update message is sent to the first network device. The terminal capability update message is used to indicate that the first communication protocol supported by the terminal has been updated. The first communication protocol supported by the third cell is different from that supported by the first cell.

[0075] Secondly, this application provides an apparatus for determining a terminal access method, comprising: an acquisition module, a first determination module, a second determination module, and a third determination module, wherein,

[0076] The acquisition module is used to acquire the System Information Block (SIB) of the first cell, and the terminal supports the reduced capability first communication protocol and the standard capability first communication protocol.

[0077] The first determining module is configured to determine, based on the SIB of the first cell, whether the first communication protocol supported by the first cell includes a reduced-capability first communication protocol, wherein the first communication protocol includes a standard-capability first communication protocol;

[0078] The second determining module is used to determine the first cell information of the first cell if the first communication protocol does not include the first communication protocol with reduced capability. The first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, initial partial bandwidth (BWP), and cell restriction information.

[0079] The third determining module is used to determine the target access method of the terminal based on the first cell information.

[0080] In one possible implementation, the third determining module is specifically used for:

[0081] The target access method is determined to be a standard access method when any of the following conditions are met:

[0082] The frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or,

[0083] The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or,

[0084] The duplex mode is Frequency Division Duplex (FDD); or...

[0085] The duplex mode is FDD, and the initial BWP is less than or equal to the preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or...

[0086] The duplex mode is Time Division Duplex (TDD), the terminal has 2 receiving antennas, the frequency band corresponding to the first cell requires the standard capability terminal to have at least 2 receiving antennas, and the initial BWP is less than or equal to the preset threshold.

[0087] In one possible implementation, the third determining module is further configured to:

[0088] The terminal is determined not to access the first cell if any of the following conditions are met:

[0089] The duplex mode is TDD; or...

[0090] The duplex mode is TDD, and the initial BWP is greater than a preset threshold; or,

[0091] The duplex mode is TDD, the terminal has 2 receiving antennas, and the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas.

[0092] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the third determining module is further configured to:

[0093] The target access method is determined to be either a reduced-capacity access method or a standard access method when any of the following conditions are met:

[0094] The duplex mode is FDD; or...

[0095] The duplex mode is FDD, and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas.

[0096] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the third determining module is further configured to:

[0097] The target access method is determined to be a standard access method when any of the following conditions are met:

[0098] The cell restriction information prohibits access by degraded capability terminals with two receiving antennas, and the frequency band corresponding to the first cell requires standard capability terminals to have at least two receiving antennas, and the terminal has two receiving antennas; or,

[0099] The cell restriction information prohibits access by reduced-capability terminals with 1 or 2 receiving antennas, and the frequency band corresponding to the first cell requires standard-capability terminals to have at least 2 receiving antennas, and the terminal has 2 receiving antennas.

[0100] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the third determining module is further configured to:

[0101] If the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas, and the terminal has 1 or 2 receiving antennas, then the target access method is determined to be a reduced capability access method.

[0102] If the cell restriction information prohibits a terminal with reduced capability that has only one receiving antenna from accessing the cell, and the terminal has only one receiving antenna, then it is determined that the terminal will not access the first cell.

[0103] In one possible implementation, after determining the target access method of the terminal, the device further includes an access module:

[0104] The access module is used to access the first cell according to the target access method.

[0105] In one possible implementation, if the target access method is a standard access method, the terminal has at least one of the following capabilities:

[0106] Supports 16 data radio bearers (DRBs);

[0107] 18-bit Packet Data Convergence Protocol Sequence Number (PDCP) SN length;

[0108] 18-bit Radio Link Control Protocol Acknowledgment Mode Sequence Number (RLC AMSN) length;

[0109] In frequency range 1, the physical downlink channel PDSCH should support 256 quadrature amplitude modulation (QAM).

[0110] No need to support early identification of degraded terminals during random access;

[0111] There is no need to include degraded capability information in the terminal capability message;

[0112] It supports carrier aggregation (CA), multi-standard dual connectivity (MR-DC), dual activation protocol stack (DAPS), conditional primary and secondary cell addition or modification of CPAC, and integrated access backhaul (IAB) functions.

[0113] In one possible implementation, if the target access method is a reduced-capability access method, the terminal has at least one of the following capabilities:

[0114] Supports 8 DRBs;

[0115] Supports 12-bit PDCP SN length;

[0116] Supports 12-bit RLC AM SN length;

[0117] The PDSCH should support 64QAM modulation in frequency range 1.

[0118] Supports early identification of terminals with reduced capabilities during random access;

[0119] It supports including reduced capability information in the terminal capability message.

[0120] In one possible implementation, after determining that the device will not access the first cell, the apparatus further includes:

[0121] The search module is used to search for a second cell and determine the cell type of the second cell;

[0122] The access module is also used to access a second cell based on the cell type and terminal capabilities.

[0123] In one possible implementation, the access module is specifically used for:

[0124] If the cell type of the second cell is a 5G cell and the terminal supports 5G, then the terminal accesses the second cell via 5G access.

[0125] If the cell type of the second cell is a 4G cell and the terminal supports 4G, then the terminal accesses the second cell using the 4G access method.

[0126] If the cell type of the second cell is a 3G cell and the terminal supports 3G, then the terminal accesses the second cell via 3G access.

[0127] If the cell type of the second cell is a 2G cell and the terminal supports 2G, then the terminal accesses the second cell using the 2G access method.

[0128] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell, the apparatus further includes: an execution module and a transmission module.

[0129] The execution module is used to execute the boot-up network search process;

[0130] Before accessing the first cell according to the target access method, the method further includes:

[0131] The sending module is used to send the terminal capability message to the first network device, the terminal capability message being used to indicate that the terminal supports the first communication protocol as a standard capability.

[0132] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell, the apparatus further includes: a measurement module.

[0133] The access module is also used to access a third cell supporting a second communication protocol from an access state with reduced capability first communication protocol or from an access state with standard capability first communication protocol;

[0134] The acquisition module is further configured to acquire the SIB of the third cell when the terminal is in an idle state;

[0135] The measurement module is used to initiate a search and measurement of the first cell after the preset reselection conditions are met;

[0136] After accessing the first cell according to the target access method, the process further includes:

[0137] The sending module is further configured to send a terminal capability update message to the first network device, the terminal capability update message being used to indicate that the first communication protocol supported by the terminal has been updated.

[0138] In one possible implementation, the first communication protocol is a 5G or 6G protocol; the second communication protocol is lower than the first communication protocol.

[0139] If the first communication protocol is the 5G protocol, then the second communication protocol is the 4G protocol;

[0140] If the first communication protocol is the 6G protocol, then the second communication protocol is the 5G protocol.

[0141] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell,

[0142] The access module is also used to access a third cell from an access state with reduced capability first communication protocol or from an access state with standard capability first communication protocol.

[0143] The acquisition module is further configured to acquire the SIB of the third cell when the terminal is in an idle state;

[0144] The measurement module is also used to initiate a search and measurement of the first cell after the preset reselection conditions are met;

[0145] After the terminal accesses the first cell according to the target access method, the method further includes:

[0146] The sending module is further configured to send a terminal capability update message to the first network device, the terminal capability update message being used to indicate that the first communication protocol supported by the terminal has been updated, and the first communication protocol supported by the third cell is different from that supported by the first cell.

[0147] Thirdly, this application provides a terminal device, including: a processor, and a memory communicatively connected to the processor;

[0148] The memory stores computer-executed instructions;

[0149] The processor executes computer execution instructions stored in the memory to implement the method as described in any of the first aspects.

[0150] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any of the first aspects.

[0151] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the method described in any of the first aspects.

[0152] This application provides a method, apparatus, device, and storage medium for determining a terminal access method. It can obtain the System Information Block (SIB) of a first cell and, based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a degraded first communication protocol. If the first communication protocol does not include the degraded first communication protocol, it determines the first cell information of the first cell and, based on the first cell information, determines the target access method of the terminal. Since the terminal can determine whether to access the first cell using a standard access method or to search for a second cell when the first communication protocol of the first cell does not include the degraded first communication protocol, and can determine whether to access the first cell using a standard access method or a degraded first communication protocol when the first communication protocol includes the degraded first communication protocol, this improves the continuity of network usage for the terminal and thus enhances the user experience. Attached Figure Description

[0153] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0154] Figure 1 A scenario diagram provided for an embodiment of this application;

[0155] Figure 2 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 1 ;

[0156] Figure 3 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 2 ;

[0157] Figure 4 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 3 ;

[0158] Figure 5 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 4 ;

[0159] Figure 6 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 5 ;

[0160] Figure 7 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 1 ;

[0161] Figure 8A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 2 ;

[0162] Figure 9 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 3 ;

[0163] Figure 10 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 4 ;

[0164] Figure 11 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 5 ;

[0165] Figure 12 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application.

[0166] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0167] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0168] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with relevant laws, regulations and standards, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0169] The application scenarios of the embodiments of this application will be described below for ease of understanding.

[0170] Figure 1 This is a schematic diagram of a scenario provided for an embodiment of this application. Please refer to [link / reference]. Figure 1 This includes network device 101 and terminal 102.

[0171] Network device 101 can be a base station. Terminal 102 can be a reduced-capacity terminal.

[0172] Network device 101 can provide multiple cells with different network types. Cells with different network types can provide network services to different types of terminals.

[0173] When terminal 102 is in a cell covered by network device 101, terminal 102 can establish a network connection with the cell and use the network signal provided by network device 101 to provide network services.

[0174] The 3GPP protocol stipulates that RedCap terminals cannot access 5G networks that do not support RedCap. It also specifies that if the 5G network's frequency band is n7 (FDD band), n38, n41, n48, n77, n78, n79, or n104 (TDD band), then a standard-capable terminal accessing that 5G network must support 1T4R (i.e., single-antenna transmit, four-antenna receive). In other FR1 frequency bands, a standard-capable terminal accessing that 5G network must support at least 1T2R. Under these frequency bands, the configuration requirements for RedCap and standard-capable terminals are essentially the same. However, RedCap terminals cannot access 5G networks on any frequency band that does not support RedCap, resulting in poor network continuity and a poor user experience.

[0175] In this embodiment, the terminal can support both a reduced-capability first communication protocol and a standard-capability first communication protocol. The terminal can obtain the System Information Block (SIB) message of the first cell and, based on the SIB message, determine whether the first communication protocol supported by the first cell includes the reduced-capability first communication protocol. If the first communication protocol does not include the reduced-capability first communication protocol, the terminal can determine the first cell information corresponding to the first cell. Based on the first cell information, the terminal can determine the target access method for accessing the first cell. Since the terminal can determine whether to access the first cell using the standard access method or to find a second cell when it determines that the first communication protocol of the first cell does not include the reduced-capability first communication protocol, and when the first communication protocol includes the reduced-capability first communication protocol, it can determine whether to access the first cell using the standard access method or the reduced-capability access method. This improves the continuity of network usage for the terminal, thereby enhancing the user experience.

[0176] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0177] Figure 2 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 1 Please see. Figure 2 The method may include:

[0178] S201. Obtain the System Information Block (SIB) message of the first cell.

[0179] The execution subject in this application embodiment can be a terminal or a device installed in the terminal for determining the terminal access method. The device for determining the terminal access method can be implemented in software or a combination of software and hardware. The device for determining the terminal access method can be a processor in the terminal. For ease of understanding, the following description uses a terminal as the execution subject.

[0180] Optionally, the terminal can be a lightweight terminal. The terminal can support both the reduced-capability first communication protocol and the standard-capability first communication protocol, meaning the terminal can have the capability to access the cell using either a reduced-capability access method or a standard access method. The terminal can be an electronic device such as a mobile phone or computer.

[0181] The first communication protocol can be 5G or 6G. If the first communication protocol is 5G, the terminal can support both reduced-capability 5G protocols and standard-capability 5G protocols.

[0182] Optionally, when the terminal is in an idle state, it can obtain the SIB message of the first cell.

[0183] S202. Based on the SIB message of the first cell, determine whether the first communication protocol supported by the first cell includes the first communication protocol with reduced capabilities.

[0184] The first communication protocol may include a standard capability first communication protocol. The terminal can determine, based on the SIB message of the first cell, whether the first communication protocol supported by the first cell also includes a degraded capability first communication protocol.

[0185] Optionally, the following method can be used to determine whether the first communication protocol supported by the first cell includes a reduced-capability first communication protocol based on the SIB message of the first cell: if the SIB message includes an IntraFrequency Reselection Indicator (IFRI), then it can be determined that the first communication protocol includes a reduced-capability first communication protocol; if the SIB message does not include an IFRI message, then it can be determined that the first communication protocol does not include a reduced-capability first communication protocol.

[0186] The IFRI message can be used to indicate whether a terminal is allowed to perform cell selection (reselection) to a cell on the same frequency, and it is applicable to all terminals with reduced capabilities.

[0187] If the first communication protocol includes a reduced-capability first communication protocol, it means that the first cell supports access via the reduced-capability access method; if the first communication protocol does not include a reduced-capability first communication protocol, it means that the first cell does not support access via the reduced-capability access method, but supports access via the standard access method.

[0188] S203. If the first communication protocol does not include the first communication protocol with reduced capabilities, then determine the first cell information of the first cell.

[0189] The first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, the initial bandwidth part (BWP), and cell restriction information.

[0190] Duplex modes can include frequency division duplexing (FDD) and time division duplexing (TDD).

[0191] Optionally, the terminal can determine the first frequency point of the first cell and determine the duplex mode corresponding to the first cell based on the first frequency point. If the first frequency point belongs to the FDD band, the duplex mode corresponding to the first cell can be determined to be FDD mode; if the first frequency point belongs to the TDD band, the duplex mode corresponding to the first cell can be determined to be TDD mode.

[0192] The number of receiving antennas required for a standard-capable terminal in the frequency band corresponding to the first cell refers to the number of receiving antennas that a standard-capable terminal should have in order to access the first cell in the corresponding frequency band.

[0193] Optionally, the terminal can determine the frequency band corresponding to the first cell, and then determine the number of receiving antennas required for the standard capability terminal under that frequency band. For example, if the frequency band corresponding to the first cell is 2.5 GHz, the number of receiving antennas required for the standard capability terminal under that frequency band can be 2.

[0194] The initial partial bandwidth (BWP) can be used by terminals in the idle state to receive system information and complete random access. For example, the initial partial bandwidth (BWP) can be 20 MHz (megahertz).

[0195] Cell restriction information is targeted at degraded terminals. For example, cell restriction information could prohibit degraded terminals with two receiving antennas from accessing the network.

[0196] S204. Based on the information of the first cell, determine the target access method of the terminal.

[0197] The target access method can be either a reduced-capacity access method or a standard access method.

[0198] The target access method can be determined as the standard access method when any of the following conditions are met:

[0199] The frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the terminal must have two receiving antennas; or,

[0200] The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or,

[0201] The duplex mode is FDD; or,

[0202] The duplex mode is FDD, and the initial BWP is less than or equal to a preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has at least two receiving antennas; or...

[0203] The duplex mode is Time Division Duplex (TDD), and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas, and the initial BWP is less than or equal to a preset threshold.

[0204] The preset threshold can be 20MHz.

[0205] In this embodiment, the terminal can obtain the System Information Block (SIB) message of the first cell and determine whether the first communication protocol supported by the first cell includes a degraded first communication protocol based on the SIB message. If the first communication protocol does not include the degraded first communication protocol, the terminal can determine the first cell information and, based on the first cell information, determine the terminal's target access method. Since the terminal can determine to access the first cell using the standard access method based on the first cell information when it determines that the first communication protocol of the first cell does not include the degraded first communication protocol, the continuity of network usage is improved, thereby enhancing the user experience.

[0206] Below, in Figure 2 Based on the illustrated embodiments, combined with Figures 3-6 The method for determining the terminal access method described above will be explained in further detail.

[0207] Figure 3 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 2 Please see. Figure 3 The method may include:

[0208] S301, Execute the power-on network search process.

[0209] It should be noted that since the terminal is in a newly powered-on state and has not yet connected to any network, it has not yet sent terminal capability messages to the first network device. The first network device can be the base station corresponding to the first cell.

[0210] S302. Obtain the System Information Block (SIB) of the first cell.

[0211] S303. Based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a first communication protocol with reduced capabilities.

[0212] It should be noted that the execution process of steps S302-S303 can be found in steps S201-S202, and will not be repeated here.

[0213] S304. If the first communication protocol does not include a first communication protocol with reduced capabilities, then determine the first cell information and, based on the first cell information, determine the target access method as the standard access method.

[0214] If the information of the first cell includes at least one of the following, then the target access method can be determined to be the standard access method:

[0215] The frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the terminal must have two receiving antennas; or,

[0216] The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or,

[0217] The duplex mode is Frequency Division Duplex (FDD); or,

[0218] The duplex mode is FDD, and the initial BWP is less than or equal to a preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has at least two receiving antennas; or...

[0219] The duplex mode is Time Division Duplex (TDD), and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas, and the initial BWP is less than or equal to a preset threshold.

[0220] The preset threshold can be 20MHz.

[0221] S305. If the first communication protocol includes a reduced-capability first communication protocol, then determine the first cell information, and based on the first cell information, determine whether the target access method is the standard access method or the reduced-capability access method.

[0222] Optionally, determining the target access method as a standard access method or a reduced-capacity access method can include the following three situations:

[0223] Scenario 1: If the information of the first cell includes at least one of the following, then the target access method can be determined to be either a reduced-capacity access method or a standard access method:

[0224] The duplex mode is FDD; or,

[0225] The duplex mode is FDD, and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas.

[0226] When the first communication protocol includes a reduced-capacity first communication protocol and the first cell information includes a duplex mode of FDD, the terminal can determine whether the target access mode is a reduced-capacity access mode or a standard access mode. This is because when the terminal accesses the cell using a reduced-capacity access mode or a standard access mode, the user experience on the FDD frequency band is basically the same, and there is no access risk.

[0227] Scenario 2: If the information of the first cell includes at least one of the following, then the target access method can be determined to be the standard access method:

[0228] The cell restriction information prohibits access for degraded capability terminals with two receiving antennas, and the frequency band corresponding to the first cell requires standard capability terminals to have at least two receiving antennas; or,

[0229] The cell restriction information prohibits access for reduced-capability terminals with 1 or 2 receiving antennas, and the frequency band corresponding to the first cell requires standard-capability terminals to have at least 2 receiving antennas, and the terminal has 2 receiving antennas.

[0230] Scenario 3: If the frequency band corresponding to the first cell requires a standard-capability terminal to have 4 receiving antennas, and the terminal has 1 or 2 receiving antennas, then the target access method is determined to be a reduced-capability access method.

[0231] In this case, either FDD or TDD duplex mode can be used.

[0232] S306. Send a terminal capability message to the first network device.

[0233] Terminal capability messages can be used to indicate that a terminal supports the first standard capability communication protocol.

[0234] Since the terminal did not send a terminal capability message to the first network device, after determining the target access method, the terminal can send a terminal capability message to the first network device so that the first network device can determine the communication capabilities of the terminal.

[0235] S307. Access the first cell according to the target access method.

[0236] After determining the target access method, the terminal can use the corresponding protocol to access the first cell to be accessed according to the target access method. For example, if the corresponding target access method is a reduced-capacity access method, the terminal can use the reduced-capacity first communication protocol and access the first cell according to the reduced-capacity access method.

[0237] Optionally, if the target access method is different, the capabilities that the terminal should have to access the first cell will also be different.

[0238] If the target access method is a standard access method, the terminal must possess at least one of the following capabilities: support for 16 Data Radio Bearers (DRBs); an 18-bit Packet Data Convergence Protocol Sequence Number (PDCP SN); an 18-bit Radio Link Control Acknowledge Mode Serial Number (RLC AM SN); support for 256 Quadrature Amplitude Modulation (QAM) in the Physical Downlink Shared Channel (PDSCH) at frequency range 1; no need to support early identification of degraded terminals during random access; no need to carry degraded capability information in the terminal capability message; support for Carrier Aggregation (CA), multi-rate dual connectivity (MR-DC), Dual Active Protocol Stack (DAPS), Conditional Primary / Secondary Cell Addition or Change (CPAC), and Integrated Access and Backhaul. Backhaul (IAB) function.

[0239] If the target access method is a reduced capability access method, the terminal shall have at least one of the following capabilities: support for 8 DRBs; support for a 12-bit PDCP SN length; support for a 12-bit RLC AM SN length; PDSCH shall support 64QAM modulation in frequency range 1; support for early identification of reduced capability terminals during random access; and support for carrying reduced capability information in the terminal capability message.

[0240] Optionally, since the terminal can support both the reduced capability first communication protocol and the standard capability first communication protocol, the terminal can set a first priority for the reduced capability first communication protocol and a second priority for the standard capability first communication protocol.

[0241] In this embodiment, the terminal can execute a power-on network search process and obtain the System Information Block (SIB) of the first cell. Based on the SIB of the first cell, it determines whether the first communication protocol supported by the first cell includes a reduced-capability first communication protocol. If the first communication protocol does not include a reduced-capability first communication protocol, the terminal can determine the first cell information and, based on the first cell information, determine the target access method as the standard access method. If the first communication protocol includes a reduced-capability first communication protocol, the terminal can determine the first cell information and, based on the first cell information, determine the target access method as either the standard access method or the reduced-capability access method. The terminal can also send a terminal capability message to the first network device and access the first cell according to the target access method. Since the terminal can determine the target access method as either the standard access method or the reduced-capability access method when the first communication protocol includes a reduced-capability first communication protocol, and access the first cell using either the standard access method or the reduced-capability access method, and can determine the target access method as the standard access method when the first communication protocol does not include a reduced-capability first communication protocol, and access the first cell using the standard access method, the continuity of the terminal's network usage is improved, thereby enhancing the user experience.

[0242] Figure 4 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 3 Please see. Figure 4 The method may include:

[0243] S401. Access a third cell supporting a second communication protocol from either a reduced-capability first communication protocol access state or a standard-capability first communication protocol access state.

[0244] Optionally, the first communication protocol is a 5G protocol or a 6G protocol; the second communication protocol is lower than the first communication protocol.

[0245] If the first communication protocol is a 5G protocol, then the second communication protocol is a 4G protocol; if the first communication protocol is a 6G protocol, then the second communication protocol is a 5G protocol.

[0246] The third cell is the cell that the terminal connects to before connecting to the first cell. The third cell can support a second communication protocol. For example, if the second communication protocol is 4G, then the third cell supports the 4G protocol.

[0247] S402. When the terminal is in an idle state, acquire the SIB of the third cell, and after meeting the preset reselection conditions, initiate a search and measurement to the first cell.

[0248] Optionally, the preset reselection conditions can be that the reference signal reception quality of the third cell is less than a first threshold and / or the reference signal reception power is less than a second threshold.

[0249] The first cell can be a neighboring cell of the third cell. The terminal can obtain the SIB message of the third cell, which may include the frequency information of the first cell. Based on the frequency information of the first cell, the terminal can initiate a search and measurement towards the first cell.

[0250] Optionally, the terminal can measure the Reference Signal Received Power (RSRP) and Reference Signal Receiving Quality (RSRQ) of the first cell to obtain the measurement results of the first cell.

[0251] S403. Obtain the System Information Block (SIB) of the first cell.

[0252] S404. Based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a first communication protocol with reduced capabilities.

[0253] It should be noted that the execution process of steps S403-S404 can be found in steps S201-S202, and will not be repeated here.

[0254] S405. If the first communication protocol does not include a first communication protocol with reduced capabilities, then determine the first cell information and, based on the first cell information, determine the target access method as the standard access method.

[0255] S406. If the first communication protocol includes a reduced-capability first communication protocol, then determine the first cell information, and based on the first cell information, determine whether the target access method is the standard access method or the reduced-capability access method.

[0256] It should be noted that the execution process of steps S405-S406 can be found in steps S304-S305, and will not be repeated here.

[0257] S407. Access the first cell according to the target access method.

[0258] It should be noted that the execution process of step S407 can be found in step S307, and will not be repeated here.

[0259] S408: Send a terminal capability update message to the first network device.

[0260] Terminal capability update messages can be used to indicate that the first communication protocol supported by the terminal has been updated.

[0261] Since the terminal has already accessed the third cell before accessing the first cell, it has already sent a terminal capability message to the network. After determining the target access method, the terminal can send a terminal capability update message to the first network device so that the first network device can determine the first communication protocol currently supported by the terminal. The first network device can then issue network instructions or network parameters to the terminal based on the terminal capability update message.

[0262] If the target access method is a standard capability access method, the terminal capability update information may include support for the first standard capability communication protocol, indicating that the terminal has standard access capabilities. If the target access method is a reduced capability access method, the terminal capability update information may include support for the first reduced capability communication protocol, indicating that the terminal has reduced access capabilities. Optionally, the terminal capability update message may display "support" in the field supporting reduced capabilities to indicate that the terminal supports the first reduced capability communication protocol; if the terminal does not support the first reduced capability communication protocol, this item will not be present in the terminal capability update message.

[0263] In this embodiment, the terminal can access a third cell supporting a second communication protocol from either an access state with a reduced capability first communication protocol or an access state with a standard capability first communication protocol. When the terminal is in an idle state, it can obtain the SIB of the third cell and, after meeting preset reselection conditions, initiate a search and measurement of the first cell. The terminal can obtain the System Information Block (SIB) of the first cell and, based on the SIB, determine whether the first communication protocol supported by the first cell includes the reduced capability first communication protocol. If the first communication protocol does not include the reduced capability first communication protocol, the terminal determines the first cell information and, based on the first cell information, determines the target access method as the standard access method. If the first communication protocol includes the reduced capability first communication protocol, the terminal determines the first cell information and, based on the first cell information, determines the target access method as either the standard access method or the reduced capability access method. The terminal can access the first cell according to the target access method and send a terminal capability update message to the first network device. When the first communication protocol includes a reduced-capacity first communication protocol, the terminal can determine the target access method as either the standard access method or the reduced-capacity access method, and access the first cell using either the standard access method or the reduced-capacity access method; when the first communication protocol does not include a reduced-capacity first communication protocol, the terminal can determine the target access method as the standard access method, and access the first cell using the standard access method, thereby improving the continuity of the terminal's network usage and thus enhancing the user experience.

[0264] Figure 5 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 4 Please see. Figure 5 The method may include:

[0265] S501, access the third cell from the access state of the reduced capability first communication protocol or from the access state of the standard capability first communication protocol.

[0266] Optionally, if the third cell supports the reduced capability first communication protocol, the terminal can use the reduced capability first communication protocol to access the third cell; if the third cell supports the standard capability first communication protocol, the terminal can use the standard capability first communication protocol to access the third cell.

[0267] S502. When the terminal is in an idle state, acquire the SIB of the third cell, and after meeting the preset reselection conditions, initiate a search and measurement to the first cell.

[0268] Optionally, the preset reselection condition can be that the signal quality obtained by the terminal in the third cell is lower than the preset quality.

[0269] The first cell can be a neighboring cell of the third cell. The terminal can obtain the SIB message of the third cell, which may include the frequency information of the first cell. Based on the frequency information of the first cell, the terminal can initiate a search and measurement towards the first cell.

[0270] Optionally, the terminal can measure the RSRP and RSRQ of the first cell to obtain the measurement results of the first cell.

[0271] The first communication protocol supported by the third cell and the first cell can be different. For example, if the third cell supports a reduced-capability first communication protocol, then the first cell can support a standard-capability first communication protocol; if the third cell supports a standard-capability first communication protocol, then the first cell can support a reduced-capability first communication protocol.

[0272] S503. Obtain the System Information Block (SIB) of the first cell.

[0273] S504. Based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a first communication protocol with reduced capabilities.

[0274] It should be noted that the execution process of steps S503-S504 can be found in steps S201-S202, and will not be repeated here.

[0275] S505. If the first communication protocol does not include a first communication protocol with reduced capabilities, then determine the first cell information and, based on the first cell information, determine the target access method as the standard access method.

[0276] S506. If the first communication protocol includes a reduced-capability first communication protocol, then determine the first cell information, and based on the first cell information, determine whether the target access method is the standard access method or the reduced-capability access method.

[0277] It should be noted that the execution process of steps S505-S506 can be found in steps S304-S305, and will not be repeated here.

[0278] S507. Access the first cell according to the target access method.

[0279] It should be noted that the execution process of step S507 can be found in step S307, and will not be repeated here.

[0280] S508: Send a terminal capability update message to the first network device.

[0281] Terminal capability update messages can be used to indicate that the first communication protocol supported by the terminal has been updated.

[0282] Since the terminal has already accessed the third cell before accessing the first cell, it has already sent a terminal capability message to the network. After determining the target access method, the terminal can send a terminal capability update message to the first network device so that the first network device can determine the first communication protocol currently supported by the terminal. The first network device can then issue network instructions or network parameters to the terminal based on the terminal capability update message.

[0283] If the target access method is a standard capability access method, the terminal capability update information may include the terminal supporting the first standard capability communication protocol to indicate that the terminal has standard access capability; if the target access method is a reduced capability access method, the terminal capability update information may include the terminal supporting the first reduced capability communication protocol to indicate that the terminal has reduced access capability.

[0284] In this embodiment, the terminal accesses the third cell from either a reduced-capability first communication protocol access state or a standard-capability first communication protocol access state. When the terminal is in an idle state, it can obtain the SIB of the third cell and, after meeting preset reselection conditions, initiate a search and measurement of the first cell. The terminal can obtain the System Information Block (SIB) of the first cell and, based on the SIB, determine whether the first communication protocol supported by the first cell includes the reduced-capability first communication protocol. If the first communication protocol does not include the reduced-capability first communication protocol, the terminal determines the first cell information and, based on the first cell information, determines the target access method as the standard access method. If the first communication protocol includes the reduced-capability first communication protocol, the terminal determines the first cell information and, based on the first cell information, determines the target access method as either the standard access method or the reduced-capability access method. The terminal can access the first cell according to the target access method and send a terminal capability update message to the first network device. When the first communication protocol includes a reduced-capacity first communication protocol, the terminal can determine the target access method as either the standard access method or the reduced-capacity access method, and access the first cell using either the standard access method or the reduced-capacity access method; when the first communication protocol does not include a reduced-capacity first communication protocol, the terminal can determine the target access method as the standard access method, and access the first cell using the standard access method. This improves the continuity of the terminal's network usage, thereby enhancing the user experience.

[0285] Figure 6 A flowchart illustrating a method for determining a terminal access method provided in this application embodiment. Figure 5 Please see. Figure 6 The method may include:

[0286] S601. Obtain the System Information Block (SIB) of the first cell.

[0287] S602. Based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a first communication protocol with reduced capabilities.

[0288] It should be noted that the execution process of steps S601-S602 can be found in steps S201-S202, and will not be repeated here.

[0289] S603. Determine the information of the first cell, and based on whether the first communication protocol supported by the first cell includes a first communication protocol with reduced capabilities, and the information of the first cell, determine that the terminal will not access the first cell.

[0290] Optionally, determining that the terminal does not access the first cell may include the following two situations:

[0291] Scenario 1: If the first communication protocol does not include a degraded first communication protocol, and if the first cell information includes at least one of the following, considering compatibility risks, it can be determined that the terminal will not access the first cell:

[0292] The duplex mode is TDD; or,

[0293] The duplex mode is TDD, and the initial BWP is greater than a preset threshold; or,

[0294] The duplex mode is TDD, the terminal has 2 receiving antennas, and the standard capability terminal for the frequency band corresponding to the first cell has 4 receiving antennas.

[0295] Case 2: If the first communication protocol includes a reduced capability first communication protocol; and if the cell restriction information prohibits the access of a reduced capability terminal with one receiving antenna, and the terminal has one receiving antenna, then it is determined that the terminal will not access the first cell.

[0296] S604. Search for the second cell and determine its cell type.

[0297] Optionally, after determining that it will not access the first cell, the terminal can continue searching for a second cell and determine the cell type of the second cell. The cell type can include 5G cells, 4G cells, 3G cells, and 2G cells.

[0298] S605. Access the second cell based on the cell type and terminal capabilities.

[0299] Terminal capabilities include support for 5G, 4G, 3G, or 2G.

[0300] If the cell type of the second cell is a 5G cell and the terminal supports 5G, then the terminal accesses the second cell via 5G access.

[0301] If the cell type of the second cell is a 4G cell and the terminal supports 4G, then the terminal accesses the second cell using the 4G access method.

[0302] If the cell type of the second cell is a 3G cell and the terminal supports 3G, then the terminal accesses the second cell via 3G access.

[0303] If the cell type of the second cell is a 2G cell and the terminal supports 2G, then the terminal accesses the second cell using the 2G access method.

[0304] In this embodiment, the terminal can obtain the System Information Block (SIB) of a first cell and determine, based on the SIB, whether the first communication protocol supported by the first cell includes a degraded first communication protocol. The terminal can determine the first cell information and, based on whether the first communication protocol supported by the first cell includes a degraded first communication protocol and the first cell information, determine whether the terminal will not access the first cell. After determining not to access the first cell, the terminal can search for a second cell, determine the cell type of the second cell, and then access the second cell based on the second cell type and the terminal's capabilities. Because the terminal can search for and access the second cell after determining not to access the first cell, the continuity of network usage is improved, thereby enhancing the user experience.

[0305] Figure 7 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 1 Please see. Figure 7 The device 10 for determining the terminal access method includes: an acquisition module 11, a first determination module 12, a second determination module 13, and a third determination module 14, wherein...

[0306] The acquisition module 11 is used to acquire the system information block (SIB) of the first cell, and the terminal supports the reduced capability first communication protocol and the standard capability first communication protocol.

[0307] The first determining module 12 is configured to determine, based on the SIB of the first cell, whether the first communication protocol supported by the first cell includes a reduced capability first communication protocol, wherein the first communication protocol includes a standard capability first communication protocol;

[0308] The second determining module 13 is used to determine the first cell information of the first cell if the first communication protocol does not include the first communication protocol with reduced capability. The first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, initial partial bandwidth (BWP), and cell restriction information.

[0309] The third determining module 14 is used to determine the target access method of the terminal based on the first cell information.

[0310] The device for determining the terminal access method provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0311] In one possible implementation, the third determining module 14 is specifically used for:

[0312] The target access method is determined to be a standard access method when any of the following conditions are met:

[0313] The frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or,

[0314] The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or,

[0315] The duplex mode is Frequency Division Duplex (FDD); or...

[0316] The duplex mode is FDD, and the initial BWP is less than or equal to the preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or...

[0317] The duplex mode is Time Division Duplex (TDD), the terminal has 2 receiving antennas, the frequency band corresponding to the first cell requires the standard capability terminal to have at least 2 receiving antennas, and the initial BWP is less than or equal to the preset threshold.

[0318] In one possible implementation, the third determining module 14 is further configured to:

[0319] The terminal is determined not to access the first cell if any of the following conditions are met:

[0320] The duplex mode is TDD; or...

[0321] The duplex mode is TDD, and the initial BWP is greater than a preset threshold; or,

[0322] The duplex mode is TDD, the terminal has 2 receiving antennas, and the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas.

[0323] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the third determining module 14 is further configured to:

[0324] The target access method is determined to be either a reduced-capacity access method or a standard access method when any of the following conditions are met:

[0325] The duplex mode is FDD; or...

[0326] The duplex mode is FDD, and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas.

[0327] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the third determining module 14 is further configured to:

[0328] The target access method is determined to be a standard access method when any of the following conditions are met:

[0329] The cell restriction information prohibits access by degraded capability terminals with two receiving antennas, and the frequency band corresponding to the first cell requires standard capability terminals to have at least two receiving antennas, and the terminal has two receiving antennas; or,

[0330] The cell restriction information prohibits access by reduced-capability terminals with 1 or 2 receiving antennas, and the frequency band corresponding to the first cell requires standard-capability terminals to have at least 2 receiving antennas, and the terminal has 2 receiving antennas.

[0331] In one possible implementation, if the first communication protocol includes a degraded first communication protocol, the third determining module 14 is further configured to:

[0332] If the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas, and the terminal has 1 or 2 receiving antennas, then the target access method is determined to be a reduced capability access method.

[0333] If the cell restriction information prohibits a terminal with reduced capability that has only one receiving antenna from accessing the cell, and the terminal has only one receiving antenna, then it is determined that the terminal will not access the first cell.

[0334] The device for determining the terminal access method provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0335] Figure 8 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 2 Please see. Figure 8 ,exist Figure 7 Based on the illustrated device, the device 10 for determining the terminal access method further includes an access module 15, wherein,

[0336] The access module 15 is used to access the first cell according to the target access method.

[0337] In one possible implementation, if the target access method is a standard access method, the terminal has at least one of the following capabilities:

[0338] Supports 16 data radio bearers (DRBs);

[0339] 18-bit Packet Data Convergence Protocol Sequence Number (PDCP) SN length;

[0340] 18-bit Radio Link Control Protocol Acknowledgment Mode Sequence Number (RLC AMSN) length;

[0341] In frequency range 1, the physical downlink channel PDSCH should support 256 quadrature amplitude modulation (QAM).

[0342] No need to support early identification of degraded terminals during random access;

[0343] There is no need to include reduced capability information in the terminal capability message;

[0344] It supports carrier aggregation (CA), multi-standard dual connectivity (MR-DC), dual activation protocol stack (DAPS), conditional primary and secondary cell addition or modification of CPAC, and integrated access backhaul (IAB) functions.

[0345] In one possible implementation, if the target access method is a reduced-capability access method, the terminal has at least one of the following capabilities:

[0346] Supports 8 DRBs;

[0347] Supports 12-bit PDCP SN length;

[0348] Supports 12-bit RLC AM SN length;

[0349] The PDSCH should support 64QAM modulation in frequency range 1.

[0350] Supports early identification of terminals with reduced capabilities during random access;

[0351] It supports including reduced capability information in the terminal capability message.

[0352] The device for determining the terminal access method provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0353] Figure 9 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 3 Please see. Figure 9 In the Figure 7Based on the illustrated device, the device 10 for determining the terminal access method further includes an access module 15 and a search module 16, wherein,

[0354] In one possible implementation, the search module 16 is used to,

[0355] Search for the second cell and determine its cell type;

[0356] The access module 15 is further configured to access a second cell based on the cell type and terminal capabilities.

[0357] In one possible implementation, the access module 15 is specifically used for:

[0358] If the cell type of the second cell is a 5G cell and the terminal supports 5G, then the terminal accesses the second cell via 5G access.

[0359] If the cell type of the second cell is a 4G cell and the terminal supports 4G, then the terminal accesses the second cell using the 4G access method.

[0360] If the cell type of the second cell is a 3G cell and the terminal supports 3G, then the terminal accesses the second cell via 3G access.

[0361] If the cell type of the second cell is a 2G cell and the terminal supports 2G, then the terminal accesses the second cell using the 2G access method.

[0362] Figure 10 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 4 Please see. Figure 10 In the Figure 8 Based on the illustrated device, the device 10 for determining the terminal access method further includes an execution module 17 and a sending module 18, wherein,

[0363] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell,

[0364] The execution module 17 is used to execute the power-on network search process;

[0365] Before accessing the first cell according to the target access method, the method further includes:

[0366] The sending module 18 is used to send the terminal capability message to the first network device, the terminal capability message being used to indicate that the terminal supports the first communication protocol as a standard capability.

[0367] The device for determining the terminal access method provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0368] Figure 11 A schematic diagram of the structure of a device for determining a terminal access method provided in an embodiment of this application. Figure 5 Please see. Figure 11 In the Figure 8 Based on the illustrated device, the device 10 for determining the terminal access method further includes a measurement module 19 and a transmission module 18, wherein,

[0369] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell,

[0370] The access module 15 is further configured to access a third cell supporting a second communication protocol from an access state with reduced capability first communication protocol or from an access state with standard capability first communication protocol.

[0371] The acquisition module 11 is further configured to acquire the SIB of the third cell when the terminal is in an idle state;

[0372] The measurement module 19 is used to initiate a search and measurement of the first cell after the preset reselection conditions are met;

[0373] After accessing the first cell according to the target access method, the process further includes:

[0374] The sending module 18 is further configured to send a terminal capability update message to the first network device, the terminal capability update message being used to indicate that the first communication protocol supported by the terminal has been updated.

[0375] In one possible implementation, the first communication protocol is a 5G or 6G protocol; the second communication protocol is lower than the first communication protocol.

[0376] If the first communication protocol is the 5G protocol, then the second communication protocol is the 4G protocol;

[0377] If the first communication protocol is the 6G protocol, then the second communication protocol is the 5G protocol.

[0378] In one possible implementation, before acquiring the System Information Block (SIB) of the first cell,

[0379] The access module 15 is further configured to access the third cell from an access state with reduced capability first communication protocol or from an access state with standard capability first communication protocol.

[0380] The acquisition module 11 is further configured to acquire the SIB of the third cell when the terminal is in an idle state;

[0381] The measurement module 19 is further configured to initiate a search and measurement of the first cell after the preset reselection conditions are met;

[0382] After accessing the first cell according to the target access method, the process further includes:

[0383] The sending module 18 is further configured to send a terminal capability update message to the first network device, the terminal capability update message being used to indicate that the first communication protocol supported by the terminal has been updated, and the first communication protocol supported by the third cell is different from that supported by the first cell.

[0384] The device for determining the terminal access method provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0385] Figure 12 This is a schematic diagram of the structure of the terminal device provided in an embodiment of this application. Please refer to... Figure 12 The terminal device 20 may include a memory 21 and a processor 22. Exemplarily, the memory 21 and the processor 22 are interconnected via a bus 23.

[0386] Memory 21 is used to store program instructions;

[0387] The processor 22 is used to execute the program instructions stored in the memory so that the terminal 20 performs the method shown in the above method embodiment.

[0388] Figure 12 The terminal device shown can be the terminal described in any of the above embodiments.

[0389] The terminal device provided in this application embodiment can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0390] This application provides a computer-readable storage medium storing computer-executable instructions, which are used to implement the above-described method when executed by a processor.

[0391] This application embodiment may also provide a computer program product, including a computer program that, when executed by a processor, can implement the above-described method.

[0392] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0393] It should be further noted that although the steps in the flowchart are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowchart may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0394] It should be understood that the above-described device embodiments are merely illustrative, and the device of this application can also be implemented in other ways. For example, the division of units / modules in the above embodiments is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units, modules, or components may be combined, or integrated into another system, or some features may be ignored or not executed.

[0395] Furthermore, unless otherwise specified, the functional units / modules in the various embodiments of this application can be integrated into one unit / module, or each unit / module can exist physically separately, or two or more units / modules can be integrated together. The integrated units / modules described above can be implemented in hardware or as software program modules.

[0396] When integrated units / modules are implemented in hardware, the hardware can be digital circuits, analog circuits, etc. The physical implementation of the hardware structure includes, but is not limited to, transistors, memristors, etc. Unless otherwise specified, the processor can be any suitable hardware processor, such as a CPU, GPU, FPGA, DSP, and ASIC, etc. Unless otherwise specified, the storage unit can be any suitable magnetic or magneto-optical storage medium, such as Resistive Random Access Memory (RRAM), Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Enhanced Dynamic Random Access Memory (EDRAM), High-Bandwidth Memory (HBM), Hybrid Memory Cube (HMC), etc.

[0397] If the integrated unit / module is implemented as a software program module and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0398] In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as these combinations of technical features do not contradict each other, they should be considered within the scope of this specification.

[0399] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0400] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for determining the terminal access method, characterized in that, include: Obtain the System Information Block (SIB) of the first cell; the terminal supports both the reduced capability first communication protocol and the standard capability first communication protocol. Based on the SIB of the first cell, determine whether the first communication protocol supported by the first cell includes a reduced capability first communication protocol, wherein the first communication protocol includes a standard capability first communication protocol; If the first communication protocol does not include the first communication protocol for reducing capabilities, then the first cell information of the first cell is determined, and the target access method of the terminal is determined based on the first cell information; the first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, initial partial bandwidth (BWP), and cell restriction information; Among them, determining the target access method for the terminal to access the first cell based on the first cell information includes: The target access method is determined to be a standard access method when any of the following conditions are met: The frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or, The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or, The duplex mode is Frequency Division Duplex (FDD); or... The duplex mode is FDD, and the initial BWP is less than or equal to the preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or... The duplex mode is Time Division Duplex (TDD), the terminal has 2 receiving antennas, the frequency band corresponding to the first cell requires the standard capability terminal to have at least 2 receiving antennas, and the initial BWP is less than or equal to the preset threshold. If the first communication protocol includes a reduced-capacity first communication protocol, then the target access method is determined to be either a reduced-capacity access method or a standard access method when any of the following conditions are met: The duplex mode is FDD; or... The duplex mode is FDD, and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas.

2. The method according to claim 1, characterized in that, The method further includes: The terminal is determined not to access the first cell if any of the following conditions are met: The duplex mode is TDD; or... The duplex mode is TDD, and the initial BWP is greater than a preset threshold; or, The duplex mode is TDD, the terminal has 2 receiving antennas, and the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas.

3. The method according to claim 1, characterized in that, If the first communication protocol includes a first communication protocol with reduced capabilities; the method further includes: The target access method is determined to be a standard access method when any of the following conditions are met: The cell restriction information prohibits access by degraded capability terminals with two receiving antennas, and the frequency band corresponding to the first cell requires standard capability terminals to have at least two receiving antennas, and the terminal has two receiving antennas; or, The cell restriction information prohibits access by terminals with reduced capabilities that have one or two receiving antennas, and the frequency band corresponding to the first cell requires standard capability terminals to have at least two receiving antennas, and the terminal has two receiving antennas.

4. The method according to claim 1, characterized in that, If the first communication protocol includes a first communication protocol with reduced capabilities; the method further includes: If the frequency band corresponding to the first cell requires a standard capability terminal to have 4 receiving antennas, and the terminal has 1 or 2 receiving antennas, then the target access method is determined to be a reduced capability access method. If the cell restriction information prohibits a terminal with reduced capability that has only one receiving antenna from accessing the cell, and the terminal has only one receiving antenna, then it is determined that the terminal will not access the first cell.

5. The method according to any one of claims 1 or 3-4, characterized in that, After determining the target access method of the terminal, the method further includes: Access the first cell according to the target access method.

6. The method according to claim 5, characterized in that, If the target access method is a standard access method, the terminal has at least one of the following capabilities: Supports 16 data radio bearers (DRBs); 18-bit Packet Data Convergence Protocol Sequence Number (PDCP) SN length; 18-bit Radio Link Control Protocol Acknowledgment Mode Sequence Number (RLC AMSN) length; In frequency range 1, the physical downlink channel PDSCH should support 256 quadrature amplitude modulation (QAM). No need to support early identification of degraded terminals during random access; There is no need to include reduced capability information in the terminal capability message; It supports carrier aggregation (CA), multi-standard dual connectivity (MR-DC), dual activation protocol stack (DAPS), conditional primary and secondary cell addition or modification of CPAC, and integrated access backhaul (IAB) functions.

7. The method according to claim 5, characterized in that, If the target access method is a reduced-capacity access method, the terminal has at least one of the following capabilities: Supports 8 DRBs; Supports 12-bit PDCP SN length; Supports 12-bit RLC AM SN length; The PDSCH should support 64QAM modulation in frequency range 1. Supports early identification of terminals with reduced capabilities during random access; It supports including reduced capability information in the terminal capability message.

8. The method according to claim 2 or 4, characterized in that, After determining that the user will not access the first cell, the method further includes: Search for the second cell and determine its cell type; Access to the second cell is determined based on the cell type and terminal capabilities.

9. The method according to claim 8, characterized in that, Accessing the second cell based on the cell type and terminal capabilities includes: If the cell type of the second cell is a 5G cell and the terminal supports 5G, then the terminal accesses the second cell via 5G access. If the cell type of the second cell is a 4G cell and the terminal supports 4G, then the terminal accesses the second cell using the 4G access method. If the cell type of the second cell is a 3G cell and the terminal supports 3G, then the terminal accesses the second cell via 3G access. If the cell type of the second cell is a 2G cell and the terminal supports 2G, then the terminal accesses the second cell using the 2G access method.

10. The method according to any one of claims 1-4 or 6-7, characterized in that, Before obtaining the System Information Block (SIB) of the first cell, the method further includes: Execute the boot-up network search process; Before accessing the first cell according to the target access method, the method further includes: The terminal capability message is sent to the first network device, the terminal capability message being used to indicate that the terminal supports the first communication protocol as a standard capability.

11. The method according to any one of claims 1-4 or 6-7, characterized in that, Before obtaining the System Information Block (SIB) of the first cell, the method further includes: Access to a third cell supporting a second communication protocol can be made from either a reduced-capability first communication protocol access state or a standard-capability first communication protocol access state. When the terminal is in an idle state, the SIB of the third cell is acquired, and after the preset reselection conditions are met, a search and measurement are initiated on the first cell; After accessing the first cell according to the target access method, the process further includes: A terminal capability update message is sent to a first network device, the terminal capability update message being used to indicate that the first communication protocol supported by the terminal has been updated.

12. The method according to claim 11, characterized in that, The first communication protocol is a 5G or 6G protocol; the second communication protocol is inferior to the first communication protocol. If the first communication protocol is the 5G protocol, then the second communication protocol is the 4G protocol; If the first communication protocol is the 6G protocol, then the second communication protocol is the 5G protocol.

13. The method according to any one of claims 1-4 or 6-7, characterized in that, Before obtaining the System Information Block (SIB) of the first cell, the method further includes: Access to the third cell from the access state of the first communication protocol with reduced capabilities, or from the access state of the first communication protocol with standard capabilities; When the terminal is in an idle state, the SIB of the third cell is acquired, and after the preset reselection conditions are met, a search and measurement are initiated on the first cell; After accessing the first cell according to the target access method, the process further includes: A terminal capability update message is sent to the first network device. The terminal capability update message is used to indicate that the first communication protocol supported by the terminal has been updated. The first communication protocol supported by the third cell is different from that supported by the first cell.

14. An apparatus for determining a terminal access method, characterized in that, include: The module consists of an acquisition module, a first determination module, a second determination module, and a third determination module, wherein... The acquisition module is used to acquire the System Information Block (SIB) of the first cell, and the terminal supports the reduced capability first communication protocol and the standard capability first communication protocol. The first determining module is configured to determine, based on the SIB of the first cell, whether the first communication protocol supported by the first cell includes a reduced-capability first communication protocol, wherein the first communication protocol includes a standard-capability first communication protocol; The second determining module is used to determine the first cell information of the first cell if the first communication protocol does not include the first communication protocol with reduced capability. The first cell information includes at least one of the following: duplex mode, the number of receiving antennas required by the standard capability terminal for the frequency band corresponding to the first cell, initial partial bandwidth (BWP), and cell restriction information. The third determining module is used to determine the target access method of the terminal based on the first cell information; The third determining module is specifically used for: The target access method is determined to be a standard access method when any of the following conditions are met: The frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or, The terminal has two receiving antennas, and the frequency band corresponding to the first cell requires that the standard-capable terminal have at least two receiving antennas, and the initial BWP is less than or equal to a preset threshold; or, The duplex mode is Frequency Division Duplex (FDD); or... The duplex mode is FDD, and the initial BWP is less than or equal to the preset threshold. Furthermore, the frequency band corresponding to the first cell requires a standard-capable terminal to have at least two receiving antennas, and the terminal has two receiving antennas; or... The duplex mode is Time Division Duplex (TDD), the terminal has 2 receiving antennas, the frequency band corresponding to the first cell requires the standard capability terminal to have at least 2 receiving antennas, and the initial BWP is less than or equal to the preset threshold. The third determining module is further configured to, if the first communication protocol includes a reduced-capacity first communication protocol, determine the target access method as a reduced-capacity access method or a standard access method when any of the following conditions are met: The duplex mode is FDD; or... The duplex mode is FDD, and the terminal has 2 receiving antennas. The frequency band corresponding to the first cell requires that the standard capability terminal has at least 2 receiving antennas.

15. A terminal device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1 to 13.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1 to 13.

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