Terminal access method, base station and storage medium

Abstract

The embodiment of the invention provides a terminal access method, a base station and a storage medium, and belongs to the technical field of communication. The method comprises: according to a base station scene and a terminal operation, performing capability identification on a terminal to obtain capability information of the terminal, the capability information being used for indicating a support capability of the terminal to various frequency ranges; and configuring a corresponding BWP for the terminal according to the capability information. The embodiments of the present invention can ensure that the terminal supports the BWP allocated by the base station, thereby ensuring that the terminal successfully accesses the cell.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a terminal access method, a base station and a storage medium. Background Art

[0002] With the development of communication technology, the communication industry has ushered in a new era of accelerated 5G (5th Generation) deployment. The n28 frequency band of the 5G system is in the frequency range of 758MHZ to 803MHZ. However, the terminals currently on the market are limited by the functional problems of the terminal chips. When the terminal accesses the cell of the n28 frequency band, there may be a situation where the terminal cannot support part of the frequency range included in the n28 frequency band. The terminal may not support the BWP (Bandwidth Part) allocated by the base station, resulting in the failure of the terminal to access the n28 frequency band cell.

[0003] Therefore, how to ensure that the terminal supports the BWP allocated by the base station so that the terminal can successfully access the cell has become a problem that needs to be solved urgently. Summary of the invention

[0004] The main purpose of the embodiments of the present invention is to provide a terminal access method, a base station and a storage medium, aiming to solve the technical problem of how to ensure that the terminal supports the BWP allocated by the base station so that the terminal successfully accesses the cell.

[0005] In a first aspect, an embodiment of the present invention provides a terminal access method, including:

[0006] According to the base station scenario and the terminal operation, the terminal is capable of being identified to obtain capability information of the terminal, wherein the capability information is used to indicate the terminal's capability of supporting various frequency ranges;

[0007] A corresponding BWP is configured for the terminal according to the capability information.

[0008] In a second aspect, an embodiment of the present invention further provides a base station, comprising a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any terminal access method provided in the specification of the present invention are implemented.

[0009] In a third aspect, an embodiment of the present invention further provides a storage medium for computer-readable storage, characterized in that the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any terminal access method provided in the specification of the present invention.

[0010] The embodiment of the present invention provides a terminal access method, a base station and a storage medium. The terminal access method performs capability identification on the terminal according to the base station scenario and the terminal operation to obtain the capability information of the terminal, wherein the capability information is used to indicate the terminal's support capability for various frequency ranges; and configures the corresponding BWP for the terminal according to the capability information. The embodiment of the present invention can clarify the terminal's support capability for various frequency ranges by performing capability identification on the terminal, and thus configure the terminal with the BWP of the corresponding frequency range supported by the terminal based on the terminal's support capability for various frequency ranges, thereby ensuring that the terminal successfully accesses the cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 A schematic diagram of a process flow of a terminal access method provided by an embodiment of the present invention;

[0013] Figure 2a An example diagram of the division of various frequency ranges included in the n28 frequency band involved in the terminal access method provided in an embodiment of the present invention;

[0014] Figure 2b An example diagram of the division of various measurement frequency bands for measuring the n28 capability of a terminal involved in the terminal access method provided in an embodiment of the present invention;

[0015] Figure 3 An example diagram of an application scenario involved in the terminal access method provided in an embodiment of the present invention;

[0016] Figure 4a An example diagram of a switching scenario involved in the terminal access method provided in an embodiment of the present invention;

[0017] Figure 4b An example diagram of a re-establishment or resume scenario involved in the terminal access method provided in an embodiment of the present invention;

[0018] Figure 4c An example diagram of an NSA scenario involved in the terminal access method provided in an embodiment of the present invention;

[0019] Figure 5 Another example diagram of an application scenario involved in the terminal access method provided in an embodiment of the present invention;

[0020] Figure 6 A schematic block diagram of the structure of a terminal access device provided by an embodiment of the present invention;

[0021] Figure 7 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0024] It should be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0025] The terminal theoretically supports the n28 frequency band. However, for terminals that support 20M and 30M bandwidths, they are limited by the functional problems of the terminal chip and cannot support any 20M and 30M bandwidths on the n28 frequency band. That is, the terminal may not be able to support part of the frequency range included in the n28 frequency band. The terminal may not support the BWP (Bandwidth Part) allocated by the base station, resulting in the failure of the terminal to access the n28 frequency band cell.

[0026] To this end, an embodiment of the present invention provides a terminal access method, device and storage medium. The terminal access method can identify the terminal's capabilities to clarify the terminal's support capabilities for various frequency ranges, and thus configure the terminal with a BWP of the corresponding frequency range supported by the terminal based on the terminal's support capabilities for various frequency ranges, thereby ensuring that the terminal successfully accesses a cell.

[0027] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] Please refer to Figure 1 , Figure 1 A schematic diagram of a process flow of a terminal access method provided by an embodiment of the present invention.

[0029] like Figure 1As shown, the terminal access method includes steps S101 to S102.

[0030] Step S101: According to the base station scenario and the terminal operation, the terminal capability is identified to obtain the capability information of the terminal, wherein the capability information is used to indicate the terminal's support capability for various frequency ranges.

[0031] The terminal access method can be applied to two 5G networking scenarios: SA scenario and NSA scenario. In SA scenario and NSA scenario, the terminal access method can be applied to the NR base station of the 5G system.

[0032] The n28 frequency band of the 5G system is defined as a preset frequency band. In SA scenarios and NSA scenarios, when a terminal accesses or moves into a cell that supports the n28 frequency band, the n28 capability of the terminal is identified to determine which part of the frequency range included in the n28 frequency band is supported by the terminal, thereby obtaining the capability information of the terminal.

[0033] In order to more accurately identify the n28 capability of the terminal, the capability of the terminal is identified to obtain the capability information of the terminal. The first frequency range and the second frequency range can be determined according to the characteristics of a preset frequency band, wherein the preset frequency band is the working frequency band supported by the cell where the terminal is located; the terminal's support capability for the first frequency range and the second frequency range is measured respectively to obtain the capability information of the terminal.

[0034] In some embodiments, Figure 2a As shown, taking the frequency range of n28 band from 758MHZ to 803MHZ as an example, according to the bandwidth range supported by the terminal in practice, based on the characteristics of n28 band, n28 band is divided into 28A band and 28B band. 28A band is in the frequency range of 758MHZ to 788MHZ (defined as the first frequency range), and 28B band is in the frequency range of 773MHZ to 803MHZ (defined as the second frequency range), among which the frequency range of 773MHZ to 788MHZ belongs to the public frequency band.

[0035] When the cell where the terminal is located supports the n28 frequency band, the terminal's support capabilities for the frequency range of the 28A frequency band and the frequency range of the 28B frequency band are measured respectively, thereby obtaining capability information indicating the terminal's support capabilities for both the 28A frequency band and the 28B frequency band.

[0036] In some embodiments, in order to improve the efficiency of identifying the n28 capability of the terminal, the terminal's support capabilities for the first frequency range and the second frequency range are measured respectively to obtain the capability information of the terminal. Measurement commands for the terminal's support capabilities for the first measurement frequency band corresponding to the first frequency range and the second measurement frequency band corresponding to the second frequency range can be sent to the terminal respectively; based on the measurement report reported by the terminal, the capability information of the terminal supporting the first frequency range and the second frequency range is obtained.

[0037] Still taking the n28 band in the frequency range of 758MHZ to 803MHZ as an example, since the 28A band is in the frequency range of 758MHZ to 788MHZ and the 28B band is in the frequency range of 773MHZ to 803MHZ, the frequency range of 758MHZ to 773MHZ belongs to the exclusive frequency range of the 28A band, and the frequency range of 788MHZ to 803MHZ belongs to the exclusive frequency range of the 28B band. Then, if the terminal can support the exclusive frequency range of the 28A band, it can definitely support the frequency range of the 28A band; similarly, if the terminal can support the exclusive frequency range of the 28B band, it can definitely support the frequency range of the 28B band.

[0038] Therefore, if Figure 2b As shown, the exclusive frequency band of the 28A frequency band is defined as the first measurement frequency band, and the exclusive frequency band of the 28B frequency band is defined as the second measurement frequency band, and measurement commands for the support capability of the first measurement frequency band and the support capability of the second measurement frequency band are respectively sent to the terminal.

[0039] If the terminal reports the measurement report corresponding to the first measurement frequency band, the capability information of the terminal supporting the frequency range of the 28A frequency band is obtained; if the terminal reports the measurement report corresponding to the second measurement frequency band, the capability information of the terminal supporting the frequency range of the 28B frequency band is obtained; if the terminal reports the measurement report corresponding to the first measurement frequency band and the measurement report corresponding to the second measurement frequency band, the capability information of the terminal supporting the frequency range of the 28A frequency band and the frequency range of the 28B frequency band is obtained.

[0040] In this way, the terminal's support capabilities for the frequency ranges of the 28A band and the 28B band included in the n28 band can be quickly, comprehensively and accurately determined.

[0041] Step S102: configure a corresponding BWP for the terminal according to the capability information.

[0042] Based on the capability information indicating the terminal's ability to support both the 28A and 28B frequency ranges, it is ultimately determined whether to configure the terminal with a BWP for the frequency range of the 28A band, or to configure the terminal with a BWP for the frequency range of the 28B band, or to configure the terminal with a BWP for the entire frequency range of the n28 band.

[0043] In some embodiments, step S102 may be: if the capability information indicates that the terminal supports a first type of frequency range, a BWP of the first type of frequency range is configured for the terminal; if the capability information indicates that the terminal supports a second type of frequency range, a BWP of the second type of frequency range is configured for the terminal; if the capability information indicates that the terminal supports both the first type of frequency range and the second type of frequency range, a BWP of all frequency ranges included in a preset frequency band is configured for the terminal.

[0044] If the capability information of the terminal indicates that the terminal supports the frequency range of the 28A frequency band, a BWP of the frequency range of the 28A frequency band is configured for the terminal.

[0045] If the capability information of the terminal indicates that the terminal supports the frequency range of the 28B frequency band, a BWP of the frequency range of the 28B frequency band is configured for the terminal.

[0046] If the capability information of the terminal indicates that the terminal supports the frequency range of the 28A frequency band and the frequency range of the 28B frequency band, a BWP of the entire frequency range of the n28 frequency band is configured for the terminal.

[0047] In this way, based on the terminal's ability to support the frequency range of the 28A band and the frequency range of the 28B band included in the n28 band, the terminal is configured with a BWP of the corresponding frequency range it supports, which can ensure that the terminal successfully accesses the n28 band cell.

[0048] In some embodiments, in order to always ensure that the terminal successfully accesses the n28 frequency band cell, when the cell where the terminal is located supports the n28 frequency band, the initial access frequency range supported by the terminal is first determined, and the BWP of the initial access frequency range is configured for the terminal, so that when the terminal is first connected to the cell, the step of performing capability identification on the terminal and obtaining the terminal's capability information is performed.

[0049] Specifically, the initial access frequency range supported by the terminal is the frequency range of the aforementioned public frequency band. When the cell where the terminal is located supports the n28 frequency band, the terminal is first configured with a BWP of the initial access frequency range that it must support, that is, a BWP of 773MHZ to 788MHZ is configured for the terminal, thereby ensuring that the terminal successfully accesses the n28 frequency band cell first, and then the n28 capability of the terminal is measured. Since the BWP of the initial access frequency range (only 15M) is small, the terminal user experience is not good. Finally, according to the n28 capability of the terminal, the terminal is reconfigured with the BWP of the corresponding frequency range it supports, providing a better experience for the terminal user.

[0050] For a better understanding of the above embodiments, please refer to Figure 3 , the following are some example application scenarios:

[0051] In SA and NSA scenarios, taking the frequency range of n28 band from 758MHZ to 803MHZ as an example, if the terminal accesses or moves into a cell supporting n28 band, the 5G NR base station initially configures the BWP of the frequency range of the public band (773MHZ to 788MHZ) for the terminal to ensure that the terminal successfully accesses the n28 band cell first. After that, the measurement command of the support capability of the first measurement band (the exclusive frequency band of 28A band from 758MHZ to 773MHZ) and the measurement command of the support capability of the second measurement band (the exclusive frequency band of 28B band from 788MHZ to 803MHZ) are respectively sent to the terminal. If the terminal reports the measurement report corresponding to the first measurement frequency band, the terminal obtains the capability information that supports the frequency range of the 28A frequency band; if the terminal reports the measurement report corresponding to the second measurement frequency band, the terminal obtains the capability information that supports the frequency range of the 28B frequency band; if the terminal reports the measurement report corresponding to the first measurement frequency band and the measurement report corresponding to the second measurement frequency band, the terminal obtains the capability information that supports the frequency range of the 28A frequency band and the frequency range of the 28B frequency band. Finally, if the capability information of the terminal indicates that the terminal supports the frequency range of the 28A frequency band, the BWP of the frequency range of the 28A frequency band (758MHZ to 788MHZ) is reconfigured for the terminal; if the capability information of the terminal indicates that the terminal supports the frequency range of the 28B frequency band, the BWP of the frequency range of the 28B frequency band (773MHZ to 803MHZ) is reconfigured for the terminal; if the capability information of the terminal indicates that the terminal supports the frequency range of the 28A frequency band and the frequency range of the 28B frequency band, the BWP of the entire frequency range of the n28 frequency band (758MHZ to 803MHZ) is configured for the terminal. Therefore, the terminal's support capability for the frequency range of the 28A band and the frequency range of the 28B band included in the n28 frequency band can be clearly identified. Based on the terminal's support capability for the frequency range of the 28A band and the frequency range of the 28B band, the terminal is configured with a BWP of the corresponding frequency range it supports, thereby ensuring that the terminal successfully accesses the n28 frequency band cell, thereby providing a better experience for terminal users.

[0052] The terminal access method provided above performs capability identification on the terminal according to the base station scenario and the terminal operation, and obtains the capability information of the terminal, wherein the capability information is used to indicate the terminal's support capability for various frequency ranges; and configures the corresponding BWP for the terminal according to the capability information. The embodiment of the present invention can clarify the terminal's support capability for various frequency ranges by performing capability identification on the terminal, and thus configure the terminal with the BWP of the corresponding frequency range supported by the terminal based on the terminal's support capability for various frequency ranges, thereby ensuring that the terminal successfully accesses the cell.

[0053] In some embodiments, in order to reduce the measurement of the terminal n28 capability as much as possible and improve the recognition efficiency of the terminal n28 capability, an n28 capability information list can be pre-established. The n28 capability information list is established based on the type identification of the terminal that has been connected to the base station and the corresponding capability information, that is, in the pre-stored n28 capability information list, the type identification and n28 capability (defined as pre-stored capability information) of all terminals that have been active in the base station are associated and stored. Specifically, terminals of the same type have the same n28 capability. If a terminal accessing an n28 frequency band cell is identified as having n28 capability, then all subsequent terminals of the same type as the terminal that access the n28 frequency band cell must also have the same n28 capability. Therefore, the type identification and corresponding n28 capability of the terminal that has been historically connected to the n28 frequency band cell can be recorded, and the two and their corresponding relationship can be stored to obtain a capability information list, which can be stored in the data storage area of ​​the base station or the network management system of the base station.

[0054] In this way, if the cell where the terminal is located supports the n28 frequency band, the type identifier of the terminal can be determined; if there is capability information matching the type identifier in the pre-stored capability information list, the corresponding BWP is configured for the terminal according to the capability information matching the type identifier, and the capability information list includes pre-stored capability information that matches different pre-stored type identifiers; if there is no capability information matching the type identifier in the capability information list, the step of performing capability identification on the terminal to obtain the capability information of the terminal is performed.

[0055] Specifically, the type identifier of the terminal is extracted, and the extracted type identifier is compared with the pre-stored capability information list, thereby searching in the pre-stored capability information list whether there is pre-stored capability information matching the extracted type identifier.

[0056] If there is pre-stored capability information matching the extracted type identifier in the pre-stored capability information list, there is no need to measure the n28 capability of the terminal, and the pre-stored capability information matching the extracted type identifier is directly used as the n28 capability of the terminal.

[0057] In this way, based on the terminal type identification and pre-stored capability information list, the terminal's n28 capability can be quickly identified and the terminal's capability information can be obtained, which improves the recognition efficiency of the terminal's n28 capability, reduces the measurement of the terminal's n28 capability, and reduces BWP reconfiguration.

[0058] If there is no pre-stored capability information matching the extracted type identifier in the pre-stored capability information list, that is, the pre-stored capability information corresponding to the extracted type identifier is empty, then the terminal's support capabilities for the frequency range of the 28A frequency band and the frequency range of the 28B frequency band are measured respectively to identify the n28 capability of the terminal, and the capability information of the terminal is obtained, so as to configure the BWP of the corresponding frequency range supported by the terminal, thereby ensuring that the terminal successfully accesses the cell that supports the preset frequency band.

[0059] In some embodiments, when there is no capability information matching the type identifier of the terminal in the pre-stored capability information list, the terminal is identified for capability. After obtaining the capability information of the terminal, a correspondence between the type identifier of the terminal and its capability information can be established, and the correspondence can be stored in the pre-stored capability information list to expand the pre-stored capability information list and facilitate the capability identification of subsequent terminals. It can be understood that the type identifier of the terminal and the capability information of the terminal are in a one-to-one correspondence. Exemplarily, for example, if the type identifier of the terminal is IMEISv1, and the n28 capability of the terminal is a frequency range supporting the 28A frequency band, a correspondence between IMEISv1 and the frequency range supporting the 28A frequency band is established and stored in the pre-stored capability information list.

[0060] In some embodiments, the n28 capability of the terminal can also be transmitted between base stations. Specifically, when the terminal switches to the cell corresponding to the target base station that supports the preset frequency band, the capability information is encapsulated into the switching request; a switching request is sent to the target base station so that the target base station can extract the capability information from the switching request and configure the corresponding BWP for the terminal based on the capability information.

[0061] In the SA scenario, Figure 4a As shown, after the current 5G NR base station completes the capability identification of the terminal and obtains the capability information indicating the n28 capability of the terminal, the terminal can store the capability information indicating the n28 capability of the terminal locally in the current 5G NR base station. When the terminal switches to the n28 frequency band cell on the target base station side, the current 5G NR base station encapsulates the capability information indicating the n28 capability of the terminal into the handover request (Handover Request). For example, a new private information element n28_capability may be added to the Handover Request, and the capability information indicating the n28 capability of the terminal may be filled into n28_capability to identify the n28 capability of the terminal. After that, the current 5G NR base station can send the handover request to the target base station. The target base station receives the handover request, extracts the capability information indicating the n28 capability of the terminal from the handover request, and then directly configures the BWP of the corresponding frequency range supported by the terminal based on the capability information, without the need to re-measure the n28 capability of the terminal.

[0062] Similarly, if Figure 4b As shown, when the terminal is reestablished or resumed, the current 5G NR base station encapsulates the capability information indicating the n28 capability of the terminal into the Retrieve UE Context Request. For example, a new private information element n28_capability may be added to the Retrieve UE Context Request, and the capability information indicating the n28 capability of the terminal is filled into n28_capability to identify the n28 capability of the terminal. After that, the current 5G NR base station can send the Retrieve UE Context Request to the target base station. The target base station receives the Retrieve UE Context Request, extracts the capability information indicating the n28 capability of the terminal from the Retrieve UE Context Request, and then directly configures the BWP of the corresponding frequency range supported by the terminal based on the capability information, without the need to re-measure the n28 capability of the terminal.

[0063] In the NSA scenario, Figure 4cAs shown, after the terminal accesses the cell on the 4G LTE base station side, it adds the cell on the 5G NR base station side through sn. When the terminal moves into the cell on the 5G NR base station side, the BWP of the frequency range (773MHZ to 788MHZ) of the public frequency band is first configured for the terminal; after the terminal accesses the cell on the 5G NR base station side, the 5G NR base station sends a measurement command of the n28 capability to the terminal to obtain capability information indicating the n28 capability of the terminal, and reconfigures the BWP of the corresponding frequency range supported by the terminal. The 5G NR base station sends a notification message (n28_capability IND) indicating the n28 capability of the terminal to the 4G LTE base station side, notifying the 4G LTE base station of the n28 capability of the terminal, and the 4G LTE base station saves the n28 capability of the terminal. If the subsequent terminal has an SN change and an SN addition, the 4G LTE base station will encapsulate the terminal's n28 capability into the SGNB addition request (SGNB AdditionRequest). For example, a new private information element n28_capability may be added to the SGNB Addition Request, and the terminal's n28 capability may be filled in n28_capability. After that, the 4G LTE base station may send the SGNB Addition Request to the 5GNR base station. After receiving the SGNB Addition Request, the 5G NR base station directly obtains the terminal's n28 capability from the SGNBAddition Request, and can directly configure the corresponding BWP for the terminal without re-sending the n28 capability measurement for the terminal.

[0064] To better understand the above embodiments, Figure 5 As shown, the example application scenarios are as follows:

[0065] Application scenario 1, for example, a cell with n28 frequency band and 40M bandwidth (frequency range 758MHZ to 798MHZ):

[0066] When the terminal accesses the cell, the BWP of the frequency range of the public frequency band (773MHZ to 788MHZ) is first configured for the terminal; then, measurement commands for the support capability of the first measurement frequency band (the exclusive frequency band of the 28A frequency band 758MHZ to 773MHZ) and the support capability of the second measurement frequency band (the exclusive frequency band of the 28B frequency band 788MHZ to 798MHZ) are sent to the terminal respectively; the terminal only reports the measurement report of the first measurement frequency band, indicating that the n28 capability of the terminal is to support only the 28A frequency band, and the BWP of the frequency range of the 28A frequency band (758MHZ to 788MHZ) is reconfigured for the terminal.

[0067] Application scenario 2, for example, the original base station cell is cell1 with n28 frequency band and 40M bandwidth (frequency range 758MHZ to 798MHZ), and the target base station cell is cell2 with n28 frequency band and 40M bandwidth:

[0068] The terminal accesses the cell cell1, and the original base station first configures a BWP of the frequency range (773MHZ to 788MHZ) of the public frequency band for the terminal; then, measurement commands for the support capability of the first measurement frequency band (the exclusive frequency band of the 28A frequency band 758MHZ to 773MHZ) and the support capability of the second measurement frequency band (the exclusive frequency band of the 28B frequency band 788MHZ to 798MHZ) are respectively issued to the terminal; the terminal only reports the measurement report of the first measurement frequency band, indicating that the n28 capability of the terminal is to support only the 28A frequency band, and reconfigures the BWP of the frequency range (758MHZ to 788MHZ) of the 28A frequency band for the terminal. The original base station initiates handover of the terminal to the cell cell2 on the target base station side, and marks n28_capability as 28A in the handover request Handover Request; after receiving the Handover Request, the target base station obtains the n28_capability of the terminal as 28A, and directly configures the BWP of the frequency range of the 28A frequency band (758MHZ to 788MHZ) for the terminal, and no longer re-measures the n28 capability of the terminal.

[0069] Application scenario three, for example, the original base station side cell is cell1 with n28 frequency band and 40M bandwidth (frequency range 758MHZ to 798MHZ), and the target base station side cell is cell2 with n28 frequency band and 40M bandwidth:

[0070] The terminal accesses the n28 frequency band cell cell1, and the original base station first configures a BWP of the frequency range of the public frequency band (773MHZ to 788MHZ) for the terminal; then, measurement commands for the support capability of the first measurement frequency band (the exclusive frequency band of the 28A frequency band 758MHZ to 773MHZ) and the support capability of the second measurement frequency band (the exclusive frequency band of the 28B frequency band 788MHZ to 798MHZ) are respectively issued to the terminal; the terminal only reports the measurement report of the first measurement frequency band, indicating that the n28 capability of the terminal is to support only the 28A frequency band, and reconfigures the BWP of the frequency range of the 28A frequency band (758MHZ to 788MHZ) for the terminal. The terminal initiates re-establishment or resume to the target base station side cell cell2, and the original base station marks n28_capability as 28A in the Retrieve UE Context Request; after receiving the Retrieve UE Context Request, the target base station obtains the terminal's n28_capability as 28A, and directly configures the BWP of the frequency range (758MHZ to 788MHZ) of the 28A frequency band for the terminal, and no longer re-measures the n28 capability of the terminal.

[0071] Application scenario 4, such as the NSA scenario, the 5G NR base station side is a cell with n28 frequency band and 40M bandwidth (frequency range 758MHZ to 798MHZ):

[0072] After the terminal accesses the 4G LTE base station side cell, it is added through sn, and the 5G NR base station side cell is added as pscell. When the terminal moves into the 5G NR base station side cell, the BWP of the frequency range (773MHZ to 788MHZ) of the public frequency band is first configured for the terminal; after the terminal accesses the 5G NR base station side cell, the 5G NR base station sends the terminal a measurement command for the support capability of the first measurement frequency band (the exclusive frequency band 758MHZ to 773MHZ of the 28A frequency band) and the measurement command for the support capability of the second measurement frequency band (the exclusive frequency band 788MHZ to 798MHZ of the 28B frequency band); the terminal only reports the measurement report of the first measurement frequency band, indicating that the terminal's n28 capability is to only support the 28A frequency band, and the BWP of the frequency range (758MHZ to 788MHZ) of the 28A frequency band is reconfigured for the terminal. The 5G NR base station sends n28_capability IND to the 4G LTE base station to notify the 4G LTE base station that the terminal's n28 capability is 28A. When the terminal subsequently releases sn and adds sn, the 4G LTE base station fills in SGNB Addition Request, and fills in n28_capability as 28A. After receiving the SGNB Addition Request, the 5G NR base station directly configures the terminal with a BWP in the frequency range of the 28A frequency band (758MHZ to 788MHZ), and no longer re-measures the terminal for the n28 capability.

[0073] Application scenario 5, for example, the cell is cell1 in the n28 frequency band and 40M bandwidth (frequency range 758MHZ to 798MHZ), and the terminal type identifier (IMEISV) is both terminal 1 and terminal 2 with imeisv1:

[0074] Terminal 1 accesses cell 1. The base station first configures the BWP of the frequency range (773MHZ to 788MHZ) of the public frequency band for the terminal. Then, it sends the measurement command of the support capability of the first measurement frequency band (the exclusive frequency band of the 28A frequency band 758MHZ to 773MHZ) and the measurement command of the support capability of the second measurement frequency band (the exclusive frequency band of the 28B frequency band 788MHZ to 798MHZ) to the terminal. The terminal only reports the measurement report of the first measurement frequency band, indicating that the n28 capability of the terminal is to support only the 28A frequency band, and reconfigures the BWP of the frequency range (758MHZ to 788MHZ) of the 28A frequency band for the terminal. The imeisv1 and n28 capabilities of terminal 1 are associated and recorded in the capability information list stored in the network management system of the base station. Subsequently, when terminal 2 whose IMEISV is imeisv1 accesses cell 1, the base station directly extracts the pre-stored n28 capability matching imeisv1 from the capability information list in the network management system as the n28 capability of terminal 2, thereby directly configuring the BWP of the frequency range (758MHZ to 788MHZ) of the 28A frequency band for terminal 2, without the need to perform n28 capability measurement on terminal 2.

[0075] The terminal access method provided above can quickly, comprehensively, flexibly and accurately determine the terminal's support capabilities for various frequency ranges included in the n28 frequency band, and thus configure the terminal with a BWP of the corresponding frequency range it supports based on the terminal's support capabilities for various frequency ranges included in the n28 frequency band, thereby ensuring that the terminal successfully accesses the n28 frequency band cell and improving the reliability of the terminal's successful access to the n28 frequency band cell.

[0076] See also Figure 6 , Figure 6 A schematic block diagram of a terminal access device provided by an embodiment of the present invention.

[0077] like Figure 6 As shown, the device 200 includes: an identification module 201 and a configuration module 202.

[0078] The identification module 201 is used to identify the capability of the terminal according to the base station scenario and the terminal operation, and obtain the capability information of the terminal, wherein the capability information is used to indicate the support capability of the terminal for various frequency ranges;

[0079] The configuration module 202 is used to configure a corresponding BWP for the terminal according to the capability information.

[0080] Among them, the identification module 201 is used to identify the n28 capability of the terminal in SA scenarios and NSA scenarios when the terminal accesses or moves into a cell that supports the n28 frequency band, so as to determine which part of the frequency range included in the n28 frequency band is supported by the terminal, thereby obtaining the capability information of the terminal.

[0081] In order to more accurately identify the n28 capability of the terminal, taking the n28 frequency band in the frequency range of 758MHZ to 803MHZ as an example, according to the bandwidth range supported by the terminal in practice, the identification module 201 is used to divide the n28 frequency band into 28A frequency band and 28B frequency band based on the characteristics of the n28 frequency band. The 28A frequency band is in the frequency range of 758MHZ to 788MHZ (defined as the first type of frequency range), and the 28B frequency band is in the frequency range of 773MHZ to 803MHZ (defined as the second type of frequency range), wherein the frequency range of 773MHZ to 788MHZ belongs to the public frequency band.

[0082] The identification module 201 is used to measure the terminal's support capabilities for the frequency range of the 28A frequency band and the frequency range of the 28B frequency band, respectively, so as to obtain capability information indicating the terminal's support capabilities for the two frequency ranges of the 28A frequency band and the 28B frequency band.

[0083] Since the 28A frequency band is in the frequency range of 758MHZ to 788MHZ, and the 28B frequency band is in the frequency range of 773MHZ to 803MHZ, the frequency range of 758MHZ to 773MHZ belongs to the exclusive frequency band of the 28A frequency band, and the frequency range of 788MHZ to 803MHZ belongs to the exclusive frequency band of the 28B frequency band. Therefore, if the terminal can support the exclusive frequency band of the 28A frequency band, it can definitely support the frequency range of the 28A frequency band; similarly, if the terminal can support the exclusive frequency band of the 28B frequency band, it can definitely support the frequency range of the 28B frequency band.

[0084] Therefore, the exclusive frequency band of the 28A frequency band is defined as the first measurement frequency band, and the exclusive frequency band of the 28B frequency band is defined as the second measurement frequency band. The identification module 201 is used to send measurement commands for the support capability of the first measurement frequency band and the support capability of the second measurement frequency band to the terminal respectively.

[0085] If the terminal reports the measurement report corresponding to the first measurement frequency band, the capability information of the terminal supporting the frequency range of the 28A frequency band is obtained; if the terminal reports the measurement report corresponding to the second measurement frequency band, the capability information of the terminal supporting the frequency range of the 28B frequency band is obtained; if the terminal reports the measurement report corresponding to the first measurement frequency band and the measurement report corresponding to the second measurement frequency band, the capability information of the terminal supporting the frequency range of the 28A frequency band and the frequency range of the 28B frequency band is obtained.

[0086] In this way, the identification module 201 can quickly, comprehensively and accurately determine the terminal's support capabilities for the frequency range of the 28A frequency band and the frequency range of the 28B frequency band included in the n28 frequency band.

[0087] The configuration module 202 is used to ultimately determine whether to configure a BWP for the frequency range of the 28A frequency band for the terminal, a BWP for the frequency range of the 28B frequency band, or a BWP for the entire frequency range of the n28 frequency band based on the capability information indicating the terminal's support capability for the two frequency ranges of the 28A frequency band and the 28B frequency band.

[0088] If the capability information of the terminal indicates that the terminal supports the frequency range of the 28A frequency band, the configuration module 202 is used to configure the BWP of the frequency range of the 28A frequency band for the terminal.

[0089] If the capability information of the terminal indicates that the terminal supports the frequency range of the 28B frequency band, the configuration module 202 is used to configure the BWP of the frequency range of the 28B frequency band for the terminal.

[0090] If the capability information of the terminal indicates that the terminal supports the frequency range of the 28A frequency band and the frequency range of the 28B frequency band, the configuration module 202 is used to configure the BWP of the entire frequency range of the n28 frequency band for the terminal.

[0091] The terminal access device provided in the above embodiment can identify the capabilities of the terminal according to the base station scenario and the terminal operation, and obtain the capability information of the terminal, wherein the capability information is used to indicate the terminal's support capability for various frequency ranges; and configure the corresponding BWP for the terminal according to the capability information. In this way, by identifying the capabilities of the terminal, the terminal's support capability for various frequency ranges can be clarified, and based on the terminal's support capability for various frequency ranges, the terminal can be configured with the BWP of the corresponding frequency range it supports, so as to ensure that the terminal successfully accesses the cell.

[0092] The apparatus provided in the above embodiment may be implemented in the form of a computer program. The computer program may be Figure 7 Run on the base station shown.

[0093] See also Figure 7 , Figure 7 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention.

[0094] like Figure 7 As shown, the base station 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected via a bus 303, such as an I2C (Inter-integrated Circuit) bus.

[0095] Specifically, the processor 301 is used to provide computing and control capabilities to support the operation of the entire base station. The processor 301 can be a central processing unit (CPU), and the processor 301 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0096] Specifically, the memory 302 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk.

[0097] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a partial structure related to the embodiment of the present invention, and does not constitute a limitation on the base station to which the embodiment of the present invention is applied. The specific server may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0098] The processor is used to run a computer program stored in the memory, and implement any one of the terminal access methods provided by the embodiments of the present invention when executing the computer program.

[0099] In one embodiment, the processor is used to run a computer program stored in the memory, and implements the following steps when executing the computer program:

[0100] According to the base station scenario and the terminal operation, the terminal is capable of being identified to obtain capability information of the terminal, wherein the capability information is used to indicate the terminal's capability of supporting various frequency ranges;

[0101] A corresponding BWP is configured for the terminal according to the capability information.

[0102] In one embodiment, when the processor implements the capability identification of the terminal and obtains the capability information of the terminal, it is configured to implement:

[0103] Determine a first frequency range and a second frequency range according to the characteristics of the preset frequency band, wherein the preset frequency band is a working frequency band supported by the cell where the terminal is located;

[0104] The supporting capability of the terminal for the first frequency range and the second frequency range is measured respectively to obtain capability information of the terminal.

[0105] In one embodiment, when the processor implements respectively measuring the support capability of the terminal for the first category frequency range and the second category frequency range to obtain the capability information of the terminal, it is configured to implement:

[0106] Sending to the terminal a measurement command of the terminal's support capability for a first measurement frequency band corresponding to the first type of frequency range and a second measurement frequency band corresponding to the second type of frequency range;

[0107] According to the measurement report reported by the terminal, capability information of the terminal supporting the first frequency range and the second frequency range is obtained.

[0108] In one embodiment, when implementing configuring the corresponding BWP for the terminal according to the capability information, the processor is used to implement:

[0109] If the capability information indicates that the terminal supports the first frequency range, configuring a BWP of the first frequency range for the terminal;

[0110] If the capability information indicates that the terminal supports the second frequency range, configuring a BWP of the second frequency range for the terminal;

[0111] If the capability information indicates that the terminal supports the first frequency range and the second frequency range, a BWP of all frequency ranges included in the preset frequency band is configured for the terminal.

[0112] In one embodiment, before implementing the capability identification of the terminal and obtaining the capability information of the terminal, the processor is further configured to implement:

[0113] Determine the initial access frequency range supported by the terminal, and configure the BWP of the initial access frequency range for the terminal, so that when the terminal is first connected to the cell, perform the step of identifying the capability of the terminal and obtaining the capability information of the terminal.

[0114] In one embodiment, before implementing the capability identification of the terminal and obtaining the capability information of the terminal, the processor is further configured to implement:

[0115] Determining a type identifier of the terminal;

[0116] If there is capability information matching the type identifier in the pre-stored capability information list, configuring a corresponding BWP for the terminal according to the capability information matching the type identifier, the capability information list including pre-stored capability information matching different pre-stored type identifiers;

[0117] In a case where there is no capability information matching the type identifier in the capability information list, the step of performing capability identification on the terminal to obtain the capability information of the terminal is performed.

[0118] In one embodiment, the pre-stored capability information list is established according to type identifiers of terminals that have accessed the base station and corresponding capability information.

[0119] In one embodiment, the processor is used to run a computer program stored in the memory, and further implements the following steps when executing the computer program:

[0120] When the terminal switches to a cell corresponding to the target base station and supporting the preset frequency band, encapsulating the capability information into a switching request;

[0121] The handover request is sent to the target base station, so that the target base station extracts the capability information from the handover request and configures a corresponding BWP for the terminal according to the capability information.

[0122] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the base station described above can refer to the corresponding process in the aforementioned terminal access method embodiment, and will not be repeated here.

[0123] An embodiment of the present invention further provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any terminal access method provided in the description of the embodiment of the present invention.

[0124] The storage medium may be an internal storage unit of the base station described in the foregoing embodiment, such as a hard disk or memory of the base station. The storage medium may also be an external storage device of the base station, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc., equipped on the base station.

[0125] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0126] It should be understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0127] The serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A terminal access method, characterized in that: include: According to the base station scenario and the terminal operation, the terminal is capable of being identified to obtain capability information of the terminal, wherein the capability information is used to indicate the terminal's capability of supporting various frequency ranges; A corresponding BWP is configured for the terminal according to the capability information.

2. The terminal access method according to claim 1, characterized in that: The performing capability identification on the terminal to obtain capability information of the terminal includes: Determine a first frequency range and a second frequency range according to characteristics of a preset frequency band, wherein the preset frequency band is a working frequency band supported by the cell where the terminal is located; The supporting capability of the terminal for the first frequency range and the second frequency range is measured respectively to obtain capability information of the terminal.

3. The terminal access method according to claim 2, characterized in that: The respectively measuring the supporting capability of the terminal for the first frequency range and the second frequency range to obtain the capability information of the terminal includes: Sending to the terminal respectively measurement commands for supporting capabilities of a first measurement frequency band corresponding to the first type of frequency range and a second measurement frequency band corresponding to the second type of frequency range; According to the measurement report reported by the terminal, capability information of the terminal supporting the first frequency range and the second frequency range is obtained.

4. The terminal access method according to claim 2, characterized in that: The configuring a corresponding BWP for the terminal according to the capability information includes: If the capability information indicates that the terminal supports the first frequency range, configuring a BWP of the first frequency range for the terminal; If the capability information indicates that the terminal supports the second frequency range, configuring a BWP of the second frequency range for the terminal; If the capability information indicates that the terminal supports the first frequency range and the second frequency range, a BWP of all frequency ranges included in the preset frequency band is configured for the terminal.

5. The terminal access method according to claim 1, characterized in that: Before the capability identification of the terminal is performed to obtain the capability information of the terminal, the method further includes: Determine the initial access frequency range supported by the terminal, and configure the BWP of the initial access frequency range for the terminal, so that when the terminal is first connected to the cell, perform the step of identifying the capability of the terminal and obtaining the capability information of the terminal.

6. The terminal access method according to any one of claims 1 to 5, characterized in that: Before the capability identification of the terminal is performed to obtain the capability information of the terminal, the method further includes: Determining a type identifier of the terminal; If there is capability information matching the type identifier in the pre-stored capability information list, configuring a corresponding BWP for the terminal according to the capability information matching the type identifier, the capability information list including pre-stored capability information matching different pre-stored type identifiers; In a case where there is no capability information matching the type identifier in the capability information list, the step of performing capability identification on the terminal to obtain the capability information of the terminal is performed.

7. The terminal access method according to claim 6, characterized in that: The capability information list is established according to the type identifiers of the terminals that have accessed the base station and the corresponding capability information.

8. The terminal access method according to claim 1, characterized in that: The method further comprises: When the terminal switches to a cell corresponding to the target base station and supporting the preset frequency band, encapsulating the capability information into a switching request; The handover request is sent to the target base station, so that the target base station extracts the capability information from the handover request and configures a corresponding BWP for the terminal according to the capability information.

9. A base station, characterized in that: The base station includes a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the terminal access method according to any one of claims 1 to 8 are realized.

10. A storage medium for computer-readable storage, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the terminal access method according to any one of claims 1 to 8.

Images