Network addition method and terminal device

Abstract

Disclosed in embodiments of the present application are a network addition method and a terminal device. The method can be applied to the terminal device. The method comprises: acquiring first information, wherein the first information comprises a first frequency band number and a first time slot ratio of a primary cell; determining a first duplexing mode of a primary cell on the basis of the first frequency band number; when a terminal device is in a new radio carrier aggregation (NRCA) scenario, acquiring second information, wherein the second information comprises a second frequency band number and a second time slot ratio of a secondary cell; determining a second duplexing mode of the secondary cell on the basis of the second frequency band number; when the first duplexing mode and the second duplexing mode are both time division duplexing (TDD), the first frequency band number is equal to the second frequency band number, and the first time slot ratio is different from the second time slot ratio, modifying the first time slot ratio and the second time slot ratio to be the same time slot ratio; and accessing the secondary cell. The embodiments of the present application can improve the efficiency of a terminal device accessing a network.

Description

A method for adding a network and a terminal device

[0001] This application claims priority to Chinese Patent Application No. 2025104834354, filed on April 16, 2025, entitled "A Method for Adding a Network and a Terminal Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of communication technology, and in particular to a network addition method and terminal device. Background Technology

[0003] 5G New Radio Carrier Aggregation (NRCA) is a wireless communication technology that significantly improves data transmission rates and spectral efficiency by aggregating multiple carriers (frequency bands) to create a wider bandwidth. According to the 3rd Generation Partnership Project (3GPP) protocol, Intra-band NRCA requires the primary and secondary cells to maintain the same time slot ratio. Furthermore, for cost reasons, overlapping frequency bands are often designed so that terminal devices use the same radio frequency (RF) device, requiring the corresponding NRCA combinations to maintain the same time slot ratio. Currently, in these specific scenarios, when the primary and secondary cells of NRCA have different time slot ratios, terminal devices experience low efficiency when adding NRCA.

[0004] Therefore, it is necessary to study a network addition method to improve the efficiency of terminal devices accessing the network. Summary of the Invention

[0005] This application provides a network addition method and terminal device, which solves the problem of low efficiency in the process of adding NRCA to the terminal device.

[0006] In a first aspect, embodiments of this application provide a network addition method, which can be applied to a terminal device, such as a mobile phone. The method includes: obtaining first information, the first information including a first frequency band number and a first time slot allocation of a primary cell, wherein the primary cell is the cell where the terminal is camped; determining a first duplex mode of the primary cell based on the first frequency band number; obtaining second information, the second information including a second frequency band number and a second time slot allocation of a secondary cell, wherein the terminal device is in a New Radio Carrier Aggregation (NRCA) scenario; determining a second duplex mode of the secondary cell based on the second frequency band number; modifying the first time slot allocation and the second time slot allocation to the same time slot allocation when both the first duplex mode and the second duplex mode are Time Division Duplex (TDD), the first frequency band number is equal to the second frequency band number, and the first time slot allocation is different from the second time slot allocation; and accessing the secondary cell.

[0007] In one possible implementation, after determining the second duplex mode of the secondary cell based on the second frequency band number and before accessing the secondary cell, the method further includes: when both the first duplex mode and the second duplex mode are TDD, the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number and the RF device used when accessing the frequency band corresponding to the second frequency band number are the same RF device, the first frequency band number and the second frequency band number are different, the frequency band corresponding to the first frequency band number and the frequency band corresponding to the second frequency band number partially overlap, and the first time slot ratio and the second time slot ratio are different, then modifying the first time slot ratio and the second time slot ratio to the same time slot ratio.

[0008] In one possible implementation, modifying the first time slot allocation ratio and the second time slot allocation ratio to the same time slot allocation ratio includes modifying the second time slot allocation ratio to the first time slot allocation ratio; or, modifying the first time slot allocation ratio to the second time slot allocation ratio; or, modifying both the first time slot allocation ratio and the second time slot allocation ratio to a third time slot allocation ratio, wherein the third time slot allocation ratio, the first time slot allocation ratio, and the second time slot allocation ratio are all different.

[0009] In one possible implementation, after determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: performing the step of accessing the secondary cell when both the first duplex mode and the second duplex mode are TDD, the first frequency band number is equal to the second frequency band number, and the first time slot allocation ratio is the same as the second time slot allocation ratio.

[0010] In one possible implementation, after determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: performing the step of accessing the secondary cell when both the first duplex mode and the second duplex mode are TDD, the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number and the RF device used when accessing the frequency band corresponding to the second frequency band number are the same RF device, the first frequency band number and the second frequency band number are different, the frequency band corresponding to the first frequency band number and the frequency band corresponding to the second frequency band number partially overlap, and the first time slot allocation ratio is the same as the second time slot allocation ratio.

[0011] In one possible implementation, after determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: performing the step of accessing the secondary cell when both the first duplex mode and the second duplex mode are TDD, and the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number is different from the RF device used when accessing the frequency band corresponding to the second frequency band number, the first frequency band number and the second frequency band number are different, and the frequency band corresponding to the first frequency band number and the frequency band corresponding to the second frequency band number partially overlap.

[0012] In one possible implementation, after determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: performing the step of accessing the secondary cell when the first duplex mode is Frequency Division Duplex (FDD) or the second duplex mode is FDD.

[0013] Secondly, embodiments of this application provide a terminal device, which includes: a communication module for receiving information from a cell base station and enabling the terminal device to access the cell; and a processing module for controlling the terminal device to perform some or all of the steps described in the first aspect of this embodiment.

[0014] Thirdly, embodiments of this application provide an electronic device including a transceiver, a processor, and a memory. The transceiver is used to receive or send data, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to invoke the program instructions to execute some or all of the steps described in the first aspect of this embodiment.

[0015] Fourthly, embodiments of this application provide a computer-readable storage medium storing instructions that, when executed on a computer, cause some or all of the steps described in the first aspect of this embodiment to be performed.

[0016] Fifthly, embodiments of this application provide a computer program product, which includes a computer program. When the computer program is executed, some or all of the steps described in the first aspect of this embodiment are performed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the background art, the accompanying drawings used in the embodiments of the present invention or the background art will be described below.

[0018] Figure 1 is a flowchart illustrating a network addition method provided in an embodiment of this application;

[0019] Figure 2 is a flowchart illustrating another network addition method provided in an embodiment of this application;

[0020] Figure 3 is a schematic diagram of a terminal device provided in an embodiment of this application;

[0021] Figure 4 is another structural schematic diagram of the terminal device provided in the embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0024] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0025] First, let's introduce the terms used in the embodiments of this application.

[0026] Intra-band New Radio Carrier Aggregation (Intra-band NRCA) refers to the aggregation of multiple carriers within the same frequency band in 5G new wireless technology to improve data transmission rates and spectral efficiency. This carrier aggregation method allows combining multiple consecutive or non-consecutive subcarriers within the same frequency band, thereby increasing available spectrum resources and improving overall system performance. For example, in the FR1 band, multiple carriers within the n34 band are aggregated to achieve higher data throughput. The technical solution provided in this application is applied to the above-mentioned intra-band carrier aggregation scenario.

[0027] The time slot allocation (tdd_UL-DL-configuration-common) is a configuration parameter for a cell, used to define the uplink and downlink time slot configuration in a TDD system.

[0028] The primary cell is typically the initial cell that user equipment first connects to. It plays a central role in the Master Cell Group (MCG), responsible for signaling connections with the core network. While there may be multiple cells within an MCG, the primary cell is the most important and is used for initial access.

[0029] Secondary cells can be configured within an MCG or a Secondary Cell Group (SCG). The primary function of a secondary cell is to extend data bandwidth through carrier aggregation to accommodate changing traffic patterns. Once a user equipment enters connected mode, one or more secondary cells can be configured and quickly activated or deactivated as needed.

[0030] TDD is a duplex technology in wireless communication that uses time-division multiplexing to transmit uplink and downlink signals. In TDD mode, receiving and transmitting signals share the same frequency channel but are distinguished by different time slots. For example, within a time period, a base station may transmit downlink signals in the first half of the time and receive uplink signals in the second half.

[0031] Frequency Division Duplexing (FDD) is a duplexing technology in wireless communication that allocates two independent frequency channels for uplink and downlink, respectively for signal transmission from the base station to the user equipment and from the user equipment to the base station.

[0032] Radio Resource Control (RRC) reconfiguration messages are a key mechanism in wireless communication used to dynamically adjust radio resource allocation and parameter settings.

[0033] In certain special scenarios, when the primary and secondary cells of NRCA are configured with different time slot ratios, carrier aggregation (CA) may fail to be added due to protocol limitations or shared RF devices. The specific background is as follows:

[0034] 1. According to the 3GPP protocol, the primary and secondary cells of NRCA within a frequency band must maintain the same time slot ratio. When the time slot ratio is inconsistent, the secondary cell cannot be successfully added due to the failure of the Information Element (IE) verification.

[0035] 2. Considering cost reasons, the same RF device will be used in the hardware design for frequency bands such as n48 and n77 where there is frequency overlap, and the same time slot ratio needs to be maintained in the corresponding NRCA combination.

[0036] Current solutions to this problem typically involve adjusting network configurations to maintain consistency, or require modifications at the hardware or firmware level. These solutions suffer from operational complexity, high costs, and the need for hardware or firmware modifications. These issues impact the efficiency of network deployment and maintenance, and can lead to network instability and a degraded user experience.

[0037] In view of the above problems, this application provides a network registration method that can improve the efficiency of terminal devices accessing the network. The method provided by this application is described in detail below.

[0038] Please refer to Figure 1, which is a flowchart illustrating a network addition method provided in an embodiment of this application. This flowchart illustrates the process by which a terminal device adds a network via NRCA by modifying the time slot allocation of a cell due to protocol limitations. The terminology used in this method can be found above and will not be repeated here. The steps involved in the above process will be described in detail below.

[0039] 110. Obtain the first information.

[0040] The aforementioned first information includes the first frequency band number and the first time slot allocation of the primary cell. Specifically, after the terminal device connects to the primary cell, the network will inform the terminal device of the current network's frequency band indication and time slot allocation in a system broadcast message (i.e., the first information), such as n1, n41, n78, etc.

[0041] Optionally, before the terminal device obtains the first information, it accesses the primary cell. Specifically, the terminal device searches for a network and selects a suitable primary cell to access (i.e., the initial registration network).

[0042] 120. Determine the first duplex mode of the main cell based on the first frequency band number.

[0043] Specifically, referring to Table 5.2-1 in the 3GPP 38.101 standard, the operating frequency band of 5G NR in the FR1 band is defined as follows:

[0044] For example, by obtaining the first information mentioned above, the first frequency band number of the main cell is n41. By looking up the table above, it can be seen that the duplex mode corresponding to n41 is TDD. Therefore, it can be determined that the first duplex mode of the main cell is TDD.

[0045] 130. Obtain the second information when the terminal device is in an NRCA scenario.

[0046] The second information mentioned above includes the secondary cell's second frequency band number and second time slot allocation. Specifically, the network (i.e., the primary cell) sends an RRC reconfiguration message (i.e., the second information) to the terminal device. For an explanation of NRCA, please refer to the above text; it will not be elaborated upon here.

[0047] 140. Determine the second duplex mode of the auxiliary cell based on the second frequency band number.

[0048] Specifically, after obtaining the second frequency band number contained in the second information, the terminal device can find the duplex mode corresponding to the second frequency band number by looking up the table of 5GNR operating frequency bands in the FR1 band in step 120, thereby determining the second duplex mode of the secondary cell. For a detailed explanation of step 140, please refer to the explanation of step 120 above.

[0049] Optionally, if either the first duplex mode or the second duplex mode is FDD, access can be made to the secondary cell. Specifically, the 3GPP protocol only restricts the primary and secondary cells to maintain a consistent time slot ratio when both the primary and secondary cells are in TDD duplex mode. In other words, if either the primary or secondary cell is in FDD duplex mode, the terminal device can directly access the secondary cell.

[0050] 150. When both the first duplex mode and the second duplex mode are TDD, the first frequency band number is equal to the second frequency band number, and the first time slot ratio is different from the second time slot ratio, the first time slot ratio and the second time slot ratio shall be modified to the same time slot ratio.

[0051] Optionally, if both the first and second duplex modes are TDD, and the radio frequency (RF) device used by the terminal device when accessing the frequency band corresponding to the first frequency band number is the same as the RF device used when accessing the frequency band corresponding to the second frequency band number, and the first time slot ratio is different from the second time slot ratio, then the first and second time slot ratios will be modified to the same time slot ratio. The first and second frequency band numbers are different, and the frequency bands corresponding to the first and second frequency band numbers partially overlap. For example, the first frequency band number is n48, corresponding to a frequency range of 3550-3700MHz, with TDD duplex mode; the second frequency band number is n77, corresponding to a frequency range of 3300-4200MHz, with TDD duplex mode. It can be seen that the frequency bands corresponding to n48 and n77 partially overlap.

[0052] Specifically, modifying the first and second time slot allocations to the same time slot allocation can be done in any of the following three ways: 1. Modify the second time slot allocation to the first time slot allocation. 2. Modify the first time slot allocation to the second time slot allocation. 3. Modify both the first and second time slot allocations to the third time slot allocation. The third time slot allocation, the first time slot allocation, and the second time slot allocation are all different. For example, in one cycle, the first time slot allocation is DDDSUDDSUU, and the second time slot allocation is DDSUUDDDSU, where D represents the uplink time slot, S represents the special time slot, and U represents the downlink time slot. Modifying the second time slot allocation to the first time slot allocation changes the second time slot allocation to DDDSUDDSUU, thus making the first and second time slot allocations the same.

[0053] Optionally, if both the first and second duplex modes are TDD, the first frequency band number is equal to the second frequency band number, and the first time slot allocation is the same as the second time slot allocation, then access is made to the secondary cell. For example, if the first time slot allocation is DDDSUDSUU and the second time slot allocation is DDDSUDSUU in one cycle, then access is made directly to the secondary cell.

[0054] Optionally, when both the first and second duplex modes are TDD, and the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number is the same as the RF device used when accessing the frequency band corresponding to the second frequency band number, and the first time slot allocation is the same as the second time slot allocation, then access is made to the secondary cell. For example, if in one cycle the first time slot allocation is DDDSUDSUU and the second time slot allocation is DDDSUDSUU, then direct access to the secondary cell is made.

[0055] Optionally, if both the first and second duplex modes are TDD, and the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number is different from the RF device used when accessing the frequency band corresponding to the second frequency band number, the terminal device can directly access the secondary cell. If the primary and secondary cells do not share RF devices, the different time slot allocation ratios of the primary and secondary cells will not cause conflicts, and the terminal device can directly add a network and access the secondary cell without modifying the time slot allocation ratio. For example, if the first frequency band number is n77, the frequency band is 3300-4200MHz, and the second frequency band number is n48, the frequency band is 3550-3700MHz, and if the primary and secondary cells use different RF devices, the terminal device can directly access the secondary cell.

[0056] 160. Access to secondary cell.

[0057] The terminal device connects to the secondary cell, thereby completing the NRCA addition process.

[0058] In this embodiment, when both the first and second duplex modes are TDD, and the first frequency band number equals the second frequency band number, the terminal device can access the secondary cell by modifying the first and second time slot allocations to the same time slot allocation, ensuring consistency in the time slot allocations of the primary and secondary cells. This eliminates the need for network-side adjustments and base station maintenance engineers to investigate specific base stations after receiving complaints or feedback. Users can easily resolve the issue of inconsistent time slot allocations between the primary and secondary cells in NRCA, ensuring successful NRCA addition for the terminal device. This improves the efficiency of terminal device network access, enhances network connection stability and reliability, optimizes user experience, and reduces network deployment and maintenance costs and workload.

[0059] Please refer to Figure 2, which is a flowchart illustrating another network addition method provided in this embodiment of the application. This flowchart describes the process of a terminal device adding an NRCA. The terminology used in this method can be found above and will not be repeated here. The steps involved in the above process will be described in detail below.

[0060] 210. Access the main cell.

[0061] 220. Determine if the primary cell is TDD. If yes, proceed to step 230; otherwise, proceed to step 270.

[0062] Specifically, after a terminal device connects to the primary cell, the network will inform the terminal device of the current network's band indication and time slot allocation in a system broadcast message (i.e., the first information), such as n1, n41, n78, etc. The terminal device can determine whether the primary cell is TDD according to Table 5.2-1 in the 3GPP 38.101 standard.

[0063] 230. Refer to Table 5.2-1 in 3GPP 38.101 standard to determine whether the secondary cell is TDD. If yes, proceed to step 240; otherwise, proceed to step 270.

[0064] Specifically, if the duplex mode of the secondary cell is not TDD, but FDD, then the user directly accesses the secondary cell. For an explanation of this step, please refer to the explanation of step 120 above.

[0065] 240. Determine whether the primary and secondary cells are carrier-aggregated within the same frequency band or share RF devices. If yes, proceed to step 250; otherwise, proceed to step 270.

[0066] Specifically, the time slot allocation ratio of the primary cell and the secondary cell needs to be consistent in the following two scenarios: 1. According to the 3GPP protocol, the time slot allocation ratio of the primary cell and the secondary cell participating in intra-band carrier aggregation needs to be consistent. This application embodiment addresses the scenario where two cells participate in intra-band carrier aggregation (i.e., one primary cell and one secondary cell). For example, the frequency band number of the primary cell is n41, and the frequency band number of the secondary cell is n41. 2. Considering cost reasons, for frequency bands with overlapping frequencies, the terminal equipment will use the same RF device in its hardware design. In this case, the time slot allocation ratio of the primary cell and the secondary cell participating in carrier aggregation needs to be consistent, for example, the frequency bands n48 and n77. For a detailed explanation of this step, please refer to the description of step 120 above, which will not be elaborated here.

[0067] 250. Determine whether the time slot ratio of the primary cell and the secondary cell is consistent. If yes, proceed to step 270; otherwise, proceed to step 260.

[0068] Optionally, if both the first and second duplex modes are TDD, the first frequency band number is equal to the second frequency band number, and the first time slot allocation is the same as the second time slot allocation, the device accesses the secondary cell. Alternatively, if both the first and second duplex modes are TDD, the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number is the same as the RF device used when accessing the frequency band corresponding to the second frequency band number, and the first time slot allocation is the same as the second time slot allocation, the device accesses the secondary cell.

[0069] 260. Modify the first time slot ratio and the second time slot ratio to the same time slot ratio.

[0070] For a detailed explanation of this step, please refer to the explanation of step 150 above, which will not be repeated here.

[0071] 270. Complete NRCA addition.

[0072] In this embodiment, by progressively determining the scenarios applicable to the terminal device, it is determined whether the time slot ratio of the primary and secondary cells needs to be modified to the same ratio. This allows for the execution of corresponding operations for different situations, enabling the terminal device to successfully add NRCA. This allows users to easily resolve the issue of inconsistent time slot ratios between the primary and secondary cells in NRCA, ensuring successful NRCA addition for the terminal device. Ultimately, this improves the efficiency of terminal device network access, enhances network connection stability and reliability, optimizes user experience, and reduces network deployment and maintenance costs and workload.

[0073] The apparatus provided in the embodiments of this application will be described below.

[0074] This application divides the device into functional modules according to the above method embodiments. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application is illustrative and represents a logical functional division; in actual implementation, there may be other division methods. The device of the embodiment of this application will be described in detail below with reference to Figures 3 and 4.

[0075] Please refer to Figure 3, which is a schematic diagram of a terminal device provided in an embodiment of this application. As shown in Figure 3, the terminal device 300 includes a processing module 310 and a communication module 320. The communication module 320 can realize the signal transmission and reception function during network search, and the processing module 310 is used to implement the corresponding processing function. For example, the communication module 320 can also be called an interface, communication interface, or communication module, etc.

[0076] In some embodiments of this application, the device can be used to perform the actions performed by the terminal device in the above method embodiments. In this case, the device can be the device itself or a chip or functional module configurable in the device. The communication module 320 is used to perform the actions described in the above method embodiments, such as the terminal device receiving information from the cell base station and enabling the terminal device to access the cell. The processing module 310 is used to perform processing-related operations of the terminal device described in the above method embodiments.

[0077] For example, the communication module 320 described above can be an antenna module. Alternatively, the communication module 320 can be an input / output module. Optionally, in the above embodiments, the device may further include a storage module, which can be used to store instructions and / or data. The processing module 310 can read the instructions and / or data from the storage module to enable the device to implement the aforementioned method embodiments.

[0078] In one possible implementation, in the device shown in FIG3, the processing module 310 can be one or more processors, and the communication module 320 can be a transceiver. Alternatively, the communication module 320 can also be a transmitting module and a receiving module, where the transmitting module can be a transmitter and the receiving module can be a receiver. The transmitting and receiving modules are integrated into a single device, such as a transceiver. In this embodiment, the processor and transceiver can be coupled, etc., and the connection method between the processor and transceiver is not limited in this embodiment. During the execution of the above method, the process of sending information can be a process where the processor outputs the information. When outputting the information, the processor outputs the information to the transceiver for transmission. After being output by the processor, the information may require further processing before reaching the transceiver. Similarly, the process of receiving information in the above method can be a process where the processor receives the input information. When the processor receives the input information, the transceiver receives the information and inputs it to the processor. Furthermore, after the transceiver receives the information, the information may require further processing before being input to the processor.

[0079] The specific descriptions of the communication module and processing module shown in the above embodiments are merely examples. For the specific functions or execution steps of the communication module and processing module, please refer to the above method embodiments, which will not be described in detail here.

[0080] It is understandable that the module division in the above-mentioned device is a logical functional division. Each function can correspond to a functional module, or two or more functions can be integrated into one functional module. In actual implementation, all or some modules can be integrated into one physical entity, or they can be distributed across different physical entities. Furthermore, the above-mentioned functional modules can be implemented in hardware, software, or a combination of both.

[0081] Please refer to Figure 4, which is another structural schematic diagram of the terminal device provided in an embodiment of this application. As shown in Figure 4, the device includes one or more processors 420 and transceivers 410.

[0082] In some embodiments of this application, the above-described apparatus can be used to perform the steps, methods, or functions performed by the first device. For example, the processor 420 can be used to perform the functions or steps implemented by the processing module 310 shown in FIG3, and the transceiver 410 can be used to perform the functions or steps implemented by the communication module 320 shown in FIG3. Detailed descriptions of the processor 420 and transceiver 410 can be found in FIG3 or the method embodiments shown above, and will not be elaborated further here.

[0083] In other embodiments of this application, the above-described apparatus is used to perform steps, methods, or functions performed by the terminal device. For example, the processor 420 can be used to perform the functions or steps implemented by the processing module 310 shown in FIG3, and the transceiver 410 can be used to perform the functions or steps implemented by the communication module 320 shown in FIG3. Detailed descriptions of the processor 420 and transceiver 410 can be found in FIG3 or the method embodiments shown above, and will not be elaborated further here.

[0084] The following explanation uses the device shown in Figure 4 as an example of a terminal device.

[0085] In various implementations of the terminal device shown in Figure 4, the transceiver may include a receiver for performing the function (or operation) of receiving, and a transmitter for performing the function (or operation) of transmitting. The transceiver is also used to communicate with other devices / appliances via a transmission medium.

[0086] Optionally, the terminal device 400 may further include one or more memories 430 for storing program instructions and / or data. The memory 430 is coupled to the processor 420. The processor 420 may operate in conjunction with the memory 430. The processor 420 can execute the program instructions stored in the memory 430. Optionally, at least one of the aforementioned memories may be included in the processor.

[0087] This application embodiment does not limit the specific connection medium between the transceiver 410, processor 420, and memory 430. In this application embodiment, the transceiver 410, processor 420, and memory 430 are connected via a bus 440 in Figure 4. The bus is represented by a thick line in Figure 4. The connection methods between other components are only for illustrative purposes and are not intended to be limiting. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 4, but this does not mean that there is only one bus or one type of bus.

[0088] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules within the processor.

[0089] In this application embodiment, the memory may include, but is not limited to, non-volatile memory such as a hard disk drive (HDD) or solid state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM), or compact disc read-only memory (CD-ROM), etc. Memory is any storage medium capable of carrying or storing program code in the form of instructions or data structures, and capable of being read and / or written by a computer (such as the terminal device shown in this application), but is not limited to these. The memory in this application embodiment may also be a circuit or any other device capable of implementing storage functions, used to store program instructions and / or data.

[0090] The processor 420 is primarily used for processing communication protocols and data, controlling the entire terminal device, executing software programs, and processing software program data. The memory 430 is primarily used for storing software programs and data. The transceiver 410 may include control circuitry and an antenna. The control circuitry is primarily used for converting baseband signals to radio frequency signals and processing radio frequency signals. The antenna is primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touchscreens, displays, and keyboards, are primarily used for receiving user input data and outputting data to the user.

[0091] When the terminal device is powered on, the processor 420 can read the software program in the memory 430, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 420 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit processes the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 420. The processor 420 converts the baseband signal back into data and processes the data.

[0092] In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor performing baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged in a remote manner, independent of the terminal device.

[0093] The terminal device shown in this application embodiment may have more components than those in Figure 4, and this application embodiment does not limit this. The methods executed by the processor and transceiver shown above are only examples, and the specific steps executed by the processor and transceiver can be referred to the methods described above.

[0094] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for adding a network, characterized in that, The method is applied to a terminal device, and the method includes: Obtain first information, which includes the first frequency band number and the first time slot allocation of the primary cell, wherein the primary cell is the cell where the terminal is camped; determine the first duplex mode of the primary cell based on the first frequency band number; When the terminal device is in a New Radio Carrier Aggregation (NRCA) scenario, it obtains second information, which includes the second frequency band number and the second time slot allocation of the secondary cell; and determines the second duplex mode of the secondary cell based on the second frequency band number. When both the first duplex mode and the second duplex mode are Time Division Duplex (TDD), the first frequency band number is equal to the second frequency band number, and the first time slot ratio is different from the second time slot ratio, the first time slot ratio and the second time slot ratio are modified to the same time slot ratio. Access the secondary cell.

2. The method according to claim 1, characterized in that, After determining the second duplex mode of the secondary cell based on the second frequency band number, and before accessing the secondary cell, the method further includes: When both the first duplex mode and the second duplex mode are TDD, and the RF device used when the terminal device accesses the frequency band corresponding to the first frequency band number and the RF device used when accessing the frequency band corresponding to the second frequency band number are the same RF device, the first frequency band number and the second frequency band number are different, the frequency band corresponding to the first frequency band number and the frequency band corresponding to the second frequency band number partially overlap, and the first time slot ratio and the second time slot ratio are different, then the first time slot ratio and the second time slot ratio are modified to the same time slot ratio.

3. The method according to claim 1 or 2, characterized in that, The step of modifying the first time slot allocation ratio and the second time slot allocation ratio to the same time slot allocation ratio includes: The second time slot allocation ratio is modified to the first time slot allocation ratio; Alternatively, the first time slot allocation can be modified to the second time slot allocation; Alternatively, both the first and second time slot ratios can be modified to a third time slot ratio, wherein the third time slot ratio, the first time slot ratio, and the second time slot ratio are all different.

4. The method according to any one of claims 1 to 3, characterized in that, After determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: When both the first duplex mode and the second duplex mode are TDD, the first frequency band number is equal to the second frequency band number, and the first time slot allocation ratio is the same as the second time slot allocation ratio, the step of accessing the secondary cell is executed.

5. The method according to any one of claims 1 to 4, characterized in that, After determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: When both the first duplex mode and the second duplex mode are TDD, and the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number and the RF device used when accessing the frequency band corresponding to the second frequency band number are the same RF device, the first frequency band number and the second frequency band number are different, the frequency band corresponding to the first frequency band number and the frequency band corresponding to the second frequency band number partially overlap, and the first time slot allocation ratio and the second time slot allocation ratio are the same, the step of accessing the secondary cell is executed.

6. The method according to any one of claims 1 to 5, characterized in that, After determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: When both the first duplex mode and the second duplex mode are TDD, and the RF device used by the terminal device when accessing the frequency band corresponding to the first frequency band number is different from the RF device used when accessing the frequency band corresponding to the second frequency band number, the first frequency band number and the second frequency band number are different, and the frequency band corresponding to the first frequency band number and the frequency band corresponding to the second frequency band number partially overlap, the step of accessing the secondary cell is executed.

7. The method according to any one of claims 1 to 6, characterized in that, After determining the second duplex mode of the secondary cell based on the second frequency band number, the method further includes: If the first duplex mode is Frequency Division Duplex (FDD) or the second duplex mode is FDD, the step of accessing the secondary cell is performed.

8. A terminal device, characterized in that, include: The communication module is used to receive information from the cell base station and enable the terminal device to access the cell; A processing module is configured to control the terminal device to perform the method as described in any one of claims 1 to 7.

9. An electronic device, characterized in that, The device includes a transceiver, a processor, and a memory, wherein the transceiver is used to receive or transmit data, the memory is used to store a computer program, the computer program including program instructions, and the processor is configured to invoke the program instructions to perform the method as described in any one of claims 1 to 7.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed, performs the method as described in any one of claims 1 to 7.

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