Bandwidth configuration method, apparatus, device, medium and program product of dedicated base station

Abstract

This invention discloses a bandwidth configuration method, apparatus, device, medium, and program product for a dedicated base station. By determining the uplink communication parameters between the mobile terminal and the dedicated base station after the mobile terminal reselects to the dedicated base station, and configuring the uplink bandwidth of the dedicated base station receiving the uplink communication parameters to avoid the target cell in the frequency domain, the technical means of this invention can effectively reduce or avoid the situation where the uplink communication of the mobile terminal is interfered with after reselecting to the dedicated base station under the same frequency scheme.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to a bandwidth configuration method, apparatus, device, medium, and program product for a dedicated base station. Background Technology

[0002] A dedicated base station is a device that simulates a public network base station, captures the target mobile phone for registration, and reports the IMSI (International Mobile Subscriber Identity) number. A dedicated base station with positioning function can also measure the distance to the target mobile phone by measuring the strength of the uplink signal.

[0003] However, the inventors discovered that existing technologies have at least the following problems: Co-frequency schemes require configuring a dedicated base station with the same radio frequency parameters as the target cell to quickly acquire the target mobile phone. However, this can easily cause the uplink and downlink channels of the dedicated base station to completely overlap with or be completely covered by the target cell in the frequency domain. After the mobile phone reselects a dedicated base station operating on the same frequency as the target public network, it needs to initiate a registration process involving a series of uplink and downlink communications. Under existing co-frequency configuration schemes, because the uplink and downlink channels of the dedicated base station completely overlap with or are completely covered by the target cell in the frequency domain, the uplink and downlink communications of the mobile phone on the dedicated base station will be interfered with by public network base stations or other mobile phones operating on the same frequency. Uplink communication is particularly affected by interference from other mobile phones registered in the target cell, which reduces the success rate or positioning accuracy. Furthermore, the uplink power is limited by the mobile phone's hardware; the maximum uplink power of a mobile phone is usually low, and the problem of uplink interference cannot be solved by increasing the power. Summary of the Invention

[0004] The purpose of this invention is to provide a bandwidth configuration method, apparatus, device, medium, and program product for a dedicated base station, which can effectively reduce or avoid uplink communication interference after a mobile terminal reselects to a dedicated base station under the same frequency scheme.

[0005] To achieve the above objectives, embodiments of the present invention provide a bandwidth configuration method for a dedicated base station, comprising:

[0006] After determining that the mobile terminal has reselected the dedicated base station, the uplink communication parameters between the mobile terminal and the dedicated base station are determined.

[0007] The uplink bandwidth of the dedicated base station receiving the uplink communication parameters is configured to avoid the target cell in the frequency domain.

[0008] As an improvement to the above scheme, the uplink communication parameters include: during the process of the mobile terminal reselecting to the dedicated base station and reporting the mobile terminal identification code, the mobile terminal sends the random access preamble, RRC connection request signaling, RRC connection configuration completion signaling and identification response signaling to the dedicated base station.

[0009] As an improvement to the above scheme, when the dedicated base station is a 4G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain includes:

[0010] Configure the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, and configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain;

[0011] Configure the frequency hopping flag and RB allocation field in the random access response signaling, as well as the frequency hopping flag and RB allocation field in the downlink MAC message DCI0, so that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain.

[0012] As an improvement to the above scheme, configuring the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, and configuring the frequency domain offset of the random access preamble to avoid the target cell in the frequency domain, includes:

[0013] Configure the uplink PRB number of the dedicated base station The following condition must be met for the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble:

[0014]

[0015] Configure the offset of the random access preamble in the frequency domain The following conditions must be met:

[0016]

[0017] The frequency hopping flag and RB allocation field in the configuration random access response signaling, and the frequency hopping flag and RB allocation field in the downlink MAC message DCI0, are configured to ensure that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain, including:

[0018] The PUSCH used to configure the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling is the first PRB number (RB) of a consecutive PRB in the frequency domain. START Total PRB number L CRBs and the number of uplink PRBs of the dedicated base station The following conditions must be met:

[0019]

[0020] in, The uplink PRB number of the target cell. The number of uplink PRBs occupied by the random access preamble.

[0021] As an improvement to the above scheme, when the dedicated base station is a 4G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes:

[0022] When the frequency hopping flag is 1, the frequency hopping frequency offset is configured. The following conditions must be met:

[0023]

[0024] When the bandwidth of the dedicated base station is insufficient to accommodate the minimum bandwidth occupied in the frequency domain by the PUSCH used to carry the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling, where the bandwidth of the dedicated base station does not overlap with that of the target cell, the bandwidth of the dedicated base station is increased, and the uplink PRB number of the dedicated base station is configured. The following conditions must be met:

[0025]

[0026] As an improvement to the above scheme, when the dedicated base station is a 5G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain includes:

[0027] Configure the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble. Configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain.

[0028] Configure the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used to schedule the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling and the identification response signaling avoid the target cell in the frequency domain.

[0029] As an improvement to the above scheme, the configuration of the uplink bandwidth of the dedicated base station being greater than or equal to half the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble, and the configuration of the frequency domain offset of the random access preamble to ensure that the random access preamble avoids the target cell in the frequency domain, includes:

[0030] Configure the PointA frequency of the dedicated base station With the number of uplink RBs The following conditions must be met for the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble:

[0031]

[0032] Configure the offset for transmitting the uplink BWP of the random access preamble. Offset of the random access preamble within the uplink BWP The following conditions must be met:

[0033]

[0034] The configuration of the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used for scheduling the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain, includes:

[0035] Configure the offset between the random access response signaling and the uplink BWP of the PUSCH. and the number of RBs in the uplink BWP The following conditions must be met:

[0036]

[0037] in, Let Δf be the PointA frequency of the target cell, and Δf be the subcarrier spacing. The number of subcarriers for each RB, The number of uplink RBs in the target cell. The number of RBs occupied by the random access preamble.

[0038] As an improvement to the above scheme, when the dedicated base station is a 5G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes:

[0039] When the frequency domain portion of the dedicated base station bandwidth that does not overlap with the target cell bandwidth is insufficient to accommodate the RRC connection request signaling and the bandwidth occupied by the PUSCH in the frequency domain, the dedicated base station bandwidth is increased, and the dedicated base station is configured to meet the following conditions:

[0040]

[0041] As an improvement to the above scheme, the uplink communication parameters further include: during the positioning process of the mobile terminal by the dedicated base station, the mobile terminal sends an uplink channel sounding reference signal (SRS) and an uplink demodulation reference signal (DMRS) to the dedicated base station.

[0042] As an improvement to the above scheme, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes:

[0043] Configure the frequency resource allocation field of the PUSCH used to carry the uplink DMRS so that the uplink DMRS avoids the target cell in the frequency domain;

[0044] Configure the uplink SRS to offset in the frequency domain so that at least one set of uplink SRSs avoids the target cell in the frequency domain.

[0045] As an improvement to the above scheme, when the dedicated base station is a 4G dedicated base station, configuring the uplink SRS offset in the frequency domain so that at least one set of uplink SRS avoids the target cell in the frequency domain includes:

[0046] Configure the nth b Frequency offset of the uplink SRS The following conditions must be met:

[0047]

[0048] The uplink SRS is divided into N b Group, m SRS,b The number of PRBs used in each group. The number of uplink RBs in the dedicated base station. The number of uplink RBs in the target cell. This represents the number of uplink subcarriers for a single RB.

[0049] As an improvement to the above scheme, when the dedicated base station is a 5G dedicated base station, configuring the uplink SRS offset in the frequency domain so that at least one set of uplink SRS avoids the target cell in the frequency domain includes:

[0050] Configure the nth b Frequency offset of the uplink SRS The following conditions must be met:

[0051]

[0052] The uplink SRS is divided into N b Group, m SRS,b The number of PRBs used in each group. The PointA frequency of the dedicated base station, The PointA frequency of the target cell. The number of uplink RBs in the target cell. Δf represents the number of uplink subcarriers in a single RB, and Δf represents the subcarrier spacing.

[0053] As an improvement to the above scheme, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes:

[0054] When the sidebands on both sides of the dedicated base station bandwidth that do not overlap with the target cell bandwidth are insufficient to accommodate the minimum bandwidth occupied by at least one set of uplink SRS in the frequency domain, the dedicated base station bandwidth is increased.

[0055] And when the dedicated base station is a 4G dedicated base station, configure the number of uplink RBs for the dedicated base station. The following conditions must be met:

[0056]

[0057] When the dedicated base station is a 5G dedicated base station, configure the number of uplink RBs for the dedicated base station. The following conditions must be met:

[0058]

[0059] As an improvement to the above scheme, before determining the uplink communication parameters between the mobile terminal and the dedicated base station after the mobile terminal has reselected to the dedicated base station, the method further includes:

[0060] Determine the necessary radio frequency parameters of the dedicated base station under the same frequency scheme; wherein, the necessary radio frequency parameters refer to the radio frequency parameters that need to be configured to be consistent between the dedicated base station and the target cell;

[0061] Configure the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell.

[0062] As an improvement to the above scheme, the necessary radio frequency parameters are the main synchronization signal and the auxiliary synchronization signal;

[0063] When the dedicated base station is a 4G dedicated base station, configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell includes:

[0064] Configure the downlink center frequency of the dedicated base station to be consistent with the downlink center frequency of the target cell;

[0065] When the dedicated base station is a 5G dedicated base station, configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell includes:

[0066] The SSB center frequency, subcarrier spacing, and cyclic prefix format of the dedicated base station are configured to be consistent with those of the target cell.

[0067] This invention also provides a bandwidth configuration device for a dedicated base station, comprising:

[0068] The uplink communication parameter determination module is used to determine the uplink communication parameters between the mobile terminal and the dedicated base station after the mobile terminal reselects to the dedicated base station;

[0069] The uplink bandwidth configuration module is used to configure the uplink bandwidth of the dedicated base station receiving the uplink communication parameters to avoid the target cell in the frequency domain.

[0070] This invention also provides a bandwidth configuration device for a dedicated base station, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the bandwidth configuration method for a dedicated base station as described in any of the above embodiments.

[0071] This invention also provides a computer-readable storage medium, which includes a stored computer program, wherein the computer program, when running, controls the device where the computer-readable storage medium is located to execute the bandwidth configuration method for a dedicated base station as described in any of the preceding embodiments.

[0072] This invention also provides a computer program product, which includes a computer program or computer instructions. When the computer program or computer instructions are executed by a processor, they implement the bandwidth configuration method for a dedicated base station as described in any of the above embodiments.

[0073] Compared with existing technologies, the bandwidth configuration method, apparatus, device, medium, and program product for dedicated base stations disclosed in this invention determine the uplink communication parameters between the mobile terminal and the dedicated base station. By configuring the relevant parameters of the bandwidth of the dedicated base station, the uplink bandwidth of the dedicated base station receiving the uplink communication parameters avoids the target cell in the frequency domain. This invention configures the dedicated base station to obtain an uplink frequency domain that does not overlap with the target cell under a co-frequency scheme configuration. This ensures that the uplink information between the mobile terminal and the dedicated base station avoids the target cell in the frequency domain. The mobile terminal reselecting to the dedicated base station transmits the uplink information within the aforementioned uplink frequency domain that does not overlap with the target cell. This reduces or avoids the problem of interference from other mobile terminals registered on the same frequency cell of the public network after the mobile terminal reselects to the dedicated base station, and ensures that the probability of the mobile terminal scanning and quickly reselecting to the dedicated base station is consistent with existing co-frequency schemes. Attached Figure Description

[0074] Figure 1 This is a flowchart illustrating a bandwidth configuration method for a dedicated base station provided in an embodiment of the present invention;

[0075] Figure 2 This is a schematic diagram of data interaction between a mobile terminal and a dedicated base station in an embodiment of the present invention;

[0076] Figure 3 This is a schematic diagram illustrating the first principle of bandwidth configuration for a dedicated 4G base station in an embodiment of the present invention.

[0077] Figure 4 This is a second schematic diagram illustrating the bandwidth configuration of a 4G dedicated base station in an embodiment of the present invention;

[0078] Figure 5 This is a first principle schematic diagram of the bandwidth configuration of a 5G dedicated base station in an embodiment of the present invention;

[0079] Figure 6 This is a second schematic diagram illustrating the bandwidth configuration of a 5G dedicated base station in an embodiment of the present invention;

[0080] Figure 7 This is a schematic diagram of the structure of a bandwidth configuration device for a dedicated base station provided in an embodiment of the present invention;

[0081] Figure 8 This is a schematic diagram of the structure of a bandwidth configuration device for a dedicated base station provided in an embodiment of the present invention. Detailed Implementation

[0082] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0083] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0084] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0085] See Figure 1 This is a flowchart illustrating a bandwidth configuration method for a dedicated base station provided in an embodiment of the present invention. The embodiment of the present invention provides a bandwidth configuration method for a dedicated base station, including steps S11 to S12:

[0086] S11. After determining that the mobile terminal has reselected to the dedicated base station, the uplink communication parameters between the mobile terminal and the dedicated base station are determined.

[0087] S12. Configure the uplink bandwidth of the dedicated base station for receiving the uplink communication parameters to avoid the target cell in the frequency domain.

[0088] It should be noted that the embodiments of the present invention are applied to the scenario of scanning and capturing target mobile terminals by a dedicated base station under the same frequency scheme. The same frequency scheme requires configuring the dedicated base station and the target cell to have the same radio frequency related parameters to achieve the purpose of capturing the target mobile terminal, obtaining the target mobile terminal identification code, or performing ranging and positioning on the target mobile terminal.

[0089] Optionally, the mobile device is an electronic smart product such as a mobile phone, computer, tablet, or smartwatch. For example, when the mobile terminal is a mobile phone, the mobile terminal identification code is an IMSI number.

[0090] Therefore, in this embodiment of the invention, the necessary radio frequency parameters of the dedicated base station and the target cell are first configured to be consistent. That is, in step S11, after determining that the mobile terminal has reselected to the dedicated base station, and before the uplink communication parameters between the mobile terminal and the dedicated base station, the method further includes steps S01 to S02:

[0091] S01. Determine the necessary radio frequency parameters of the dedicated base station under the same frequency scheme; wherein, the necessary radio frequency parameters refer to the radio frequency parameters that need to be configured to be consistent between the dedicated base station and the target cell;

[0092] S02. Configure the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell.

[0093] Optionally, the necessary radio frequency parameters include the primary synchronization signal (PSS) and the secondary synchronization signal (SSS).

[0094] In this embodiment of the invention, the PSS signal and SSS signal of the dedicated base station are first configured to be consistent with the target cell, so that the mobile terminal can reselect to the dedicated base station.

[0095] It should be noted that under the existing co-frequency configuration scheme, because the uplink and downlink channels completely overlap with or are completely covered by the target cell in the frequency domain, the uplink and downlink communication of mobile terminals on dedicated base stations will be interfered with by public network base stations or mobile terminals operating on the same frequency. Downlink channel interference from public network cells can be resolved by increasing the transmit power of the dedicated base station. Increasing the transmit power of the dedicated base station can reduce the radio frequency (RF) indicators of the public network cell measured by nearby mobile terminals and improve the RF indicators of the dedicated base station, such as SINR and RSSI, enabling nearby mobile terminals to reach the reselection conditions more quickly and with a higher probability and reselect to the dedicated base station. However, uplink communication will be interfered with by other mobile terminals registered in the target cell. Since the uplink power is limited by the mobile terminal's hardware, the maximum uplink power of a mobile terminal is usually low, and increasing the power cannot solve the problem of uplink communication interference.

[0096] Therefore, in order to solve the problem of uplink communication interference between mobile terminals and dedicated base stations, this embodiment of the invention optimizes the existing co-frequency scheme. After configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the target cell, the uplink communication parameters between the mobile terminal and the dedicated base station are determined. By configuring the relevant parameters of the bandwidth of the dedicated base station, the uplink bandwidth of the dedicated base station avoids the target cell in the frequency domain.

[0097] By employing the technical means of this invention, a dedicated base station is configured to obtain an uplink frequency domain that does not overlap with the target cell under the same frequency scheme configuration. This allows the uplink information between the mobile terminal and the dedicated base station to avoid the target cell in the frequency domain. The mobile terminal that reselects to the dedicated base station transmits the uplink information in the uplink frequency domain that does not overlap with the target cell. This reduces or avoids the problem of uplink communication being interfered with by other mobile terminals registered on the same frequency cell of the public network after the mobile terminal reselects to the dedicated base station. It also ensures that the probability of the mobile terminal scanning and quickly reselecting to the dedicated base station is consistent with the existing same frequency scheme.

[0098] Furthermore, taking a mobile phone as an example, see... Figure 2 This diagram illustrates the data interaction between a mobile terminal and a dedicated base station in an embodiment of the present invention. After the mobile terminal reselects the dedicated base station, the process includes an registration process and a positioning process. The registration process involves the target mobile terminal reselecting the dedicated base station and reporting its mobile terminal identification code. The positioning process involves the dedicated base station locating the target mobile terminal. Typically, the dedicated base station estimates the distance by measuring the mobile terminal's uplink SRS (Sounding Reference Signal) and uplink DMRS (Demodulation Reference Signal).

[0099] That is, the uplink communication parameters include: during the process of the mobile terminal reselecting the dedicated base station and reporting the mobile terminal identification code, the mobile terminal sends the random access preamble, RRC (Radio Resource Control) connection request signaling, RRC connection configuration completion signaling and identification response signaling to the dedicated base station.

[0100] The uplink communication parameters also include: during the positioning process of the mobile terminal by the dedicated base station, the mobile terminal sends an uplink channel sounding reference signal (SRS) and an uplink demodulation reference signal (DMRS) to the dedicated base station.

[0101] In other words, configuring the bandwidth parameters of the dedicated base station ensures that the key uplink communication parameters mentioned above avoid the target cell in the frequency domain during the SIM card acquisition process. This reduces or avoids interference from other mobile phones registered on the same frequency cell of the public network, thereby improving the SIM card acquisition rate. Furthermore, it allows for the measurement of SRS and DMRS frequencies that do not overlap with the target cell during the positioning process, thus improving positioning accuracy.

[0102] As a preferred embodiment, the present invention further implements the above embodiments, and the present invention provides a detailed description of the bandwidth configuration method of the dedicated base station in both 4G and 5G scenarios.

[0103] In the first implementation, the dedicated base station is a 4G dedicated base station, see [link to relevant documentation]. Figure 3 and Figure 4 , Figure 3 This is a schematic diagram illustrating the first principle of bandwidth configuration for a dedicated 4G base station in an embodiment of the present invention. Figure 4 This is a second schematic diagram illustrating the bandwidth configuration principle of a 4G dedicated base station in an embodiment of the present invention.

[0104] When the dedicated base station is a 4G dedicated base station, step S02, namely configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell, includes:

[0105] Configure the downlink center frequency of the dedicated base station to be consistent with the downlink center frequency of the target cell.

[0106] Specifically, in 4G scenarios, to ensure that the PSS and SSS of the dedicated base station are consistent with those of the target cell, the downlink center frequency of the dedicated base station must be configured to be consistent with the downlink center frequency of the target cell, that is, to meet the following conditions:

[0107]

[0108] in, The downlink center frequency for dedicated base stations, The downlink center frequency of the target cell.

[0109] Further, step S12, namely configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain, includes:

[0110] Configure the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, and configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain;

[0111] Configure the frequency hopping flag and RB (Resource Block) allocation field in the random access response signaling, as well as the frequency hopping flag and RB allocation field in the downlink MAC message DCI0, so that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain.

[0112] Specifically, in order for the random access preamble sent by the mobile terminal reselected to the dedicated base station to avoid the target cell in the frequency domain, the uplink bandwidth of the dedicated base station must have a portion that does not overlap with the uplink bandwidth of the target cell, and this non-overlapping portion must be greater than the bandwidth occupied by the random access preamble. Since the SSS and PSS are defined in the center of the bandwidth in 4G, the uplink PRB number of the dedicated base station needs to be configured. The following condition must be met for the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, that is:

[0113]

[0114] in, The number of uplink PRBs for the target cell (defined in section 6.3.1 of 3GPP TS 36.331). This refers to the uplink PRB count of the dedicated base station. The number of uplink PRBs occupied by the random access preamble is derived from the random access preamble time-domain signal S(t):

[0115]

[0116] Where, N ZC The sequence length of the random access preamble, the time-domain signal S(t) of the random access preamble, and the frequency offset of the random access preamble within the PRB. Subcarrier spacing ratio K, random access preamble subcarrier spacing Δf RA Defined by section 5.7.3 of 3GPP TS 36.211, Δf is the uplink subcarrier spacing, i.e., 15kHz, defined by section 5.2.3 of 3GPP TS 36.211.

[0117] It should be noted that the relationship between the number of PRBs and the bandwidth is linear. Therefore, the relationship between bandwidth and the number of PRBs can be characterized by a linear formula.

[0118] Furthermore, the offset of the random access preamble in the frequency domain is determined by section 5.7.1 of 3GPP TS 36.211. Definition. To ensure that the random access preamble avoids the target cell in the frequency domain, a dedicated base station needs to be configured to offset the random access preamble in the frequency domain. In addition to meeting the 3GPP specification requirements, the following conditions must also be met:

[0119]

[0120] in, This indicates the largest PRB sequence number that does not overlap with the target cell in the lower sideband of the dedicated base station. This indicates the smallest PRB number that does not overlap with the target cell on the upper sideband of the dedicated base station.

[0121] Furthermore, the frequency domain position of the RRC connection request signaling is controlled by the frequency hopping flag (FH) and the 10-bit specific-length RB allocation field in the 20-bit UL GRANT field of the random access response signaling (3GPP TS 36.321, Section 6.1.5). The RRC connection configuration completion signaling and the identification response signaling are transmitted on the PUSCH (Physical Uplink Shared Channel), and their frequency domain position is controlled by the frequency hopping flag (FH) and the RB allocation field in the downlink MAC (Medium Access Control) message DAC0 (Downlink Control Information) (defined by 3GPP TS 36.212, Section 5.3.3.1.1).

[0122] The control rules for the frequency hopping flag FH and the RB allocation field are defined in the RIV formula (as defined in Section 8.1.1 of 3GPP TS 36.213). L CRBs RB START Definition, where This refers to the uplink PRB count of the dedicated base station. To ensure that the RRC connection request signaling, RRC connection configuration completion signaling, and identification response signaling avoid the target cell in the frequency domain, it is necessary to configure the RRC connection request signaling and the PUSCH used to carry the RRC connection configuration completion signaling and the identification response signaling to have the first PRB number (RB) of a consecutive PRB in the frequency domain. START Total PRB number L CRBs and the number of uplink PRBs of the dedicated base station The following conditions must be met:

[0123]

[0124] Among them, RB START With L CRBs These are the first PRB sequence number and the total number of PRBs in a continuous segment of PRBs in the frequency domain for the RRC connection request, the PUSCH used to carry the RRC connection configuration completion signaling, and the identification response signaling.

[0125] Furthermore, step S12, namely configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain, further includes:

[0126] When the FH flag is 1, a dedicated base station is configured to enable frequency hopping frequency offset. (As defined in Section 8.4 of 3GPP TS 36.213) In addition to meeting the 3GPP specification requirements, the following conditions must also be met:

[0127]

[0128] When the bandwidth of the dedicated base station is insufficient to accommodate the minimum bandwidth occupied in the frequency domain by the PUSCH used to carry the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling, where the bandwidth of the dedicated base station does not overlap with that of the target cell, the bandwidth of the dedicated base station is increased, and the uplink PRB number of the dedicated base station is configured. The following conditions must be met:

[0129]

[0130] By employing the technical means of this invention, the above configuration enables the key uplink communication parameters of the mobile terminal to avoid the target cell in the frequency domain during the process of the mobile terminal reporting the mobile terminal identification code on the 4G dedicated base station. This avoids interference from other mobile terminals registered on the same frequency 4G cell in the public network, thereby improving the numbering rate or positioning accuracy under the same frequency scheme.

[0131] Furthermore, step S12, namely configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain, further includes:

[0132] Configure the frequency resource allocation field of the PUSCH used to carry the uplink DMRS so that the uplink DMRS avoids the target cell in the frequency domain;

[0133] Configure the uplink SRS to offset in the frequency domain so that at least one set of uplink SRSs avoids the target cell in the frequency domain.

[0134] Specifically, the uplink DMRS is distributed within the PUSCH bandwidth. Through the above configuration, the PUSCH of the 4G dedicated base station avoids the target cell in the frequency domain. Therefore, the mobile terminal can be located by ranging through the uplink DMRS, avoiding interference from other mobile terminals that are registered on the same frequency 4G cell in the public network.

[0135] The uplink SRS is divided into N b Groups, each group occupies m PRBs. SRS,b The offset in the frequency domain is (As defined in 3GPP TS 36.211, section 5.5.3.2.1), in order to ensure that at least one set of uplink SRSs avoids the target cell in the frequency domain, a dedicated base station needs to be configured so that the nth... b Frequency offset of group SRS In addition to meeting the 3GPP specification requirements, the following conditions must also be met.

[0136]

[0137] in, The number of uplink subcarriers for a single RB (defined by section 5.2.3 of 3GPP TS 36.211).

[0138] When the sidebands on both sides of the dedicated base station bandwidth that do not overlap with the target cell bandwidth are insufficient to accommodate the minimum bandwidth occupied by at least one uplink SRS in the frequency domain, the dedicated base station bandwidth is increased; and the number of uplink RBs of the dedicated base station is configured. The following conditions must be met:

[0139]

[0140] By employing the technical means of this invention, the above configuration enables the key uplink information of the 4G dedicated base station during the numbering and ranging and positioning of the target mobile terminal to avoid the target frequency point of the public network in the frequency domain, thereby avoiding interference from other mobile terminals registered on the same frequency 4G cell of the public network, and improving the numbering rate or positioning accuracy under the same frequency scheme.

[0141] In the second implementation, the dedicated base station is a 5G dedicated base station, see [link / reference]. Figure 5 and Figure 6 , Figure 5 This is a first principle schematic diagram of the bandwidth configuration of a 5G dedicated base station in an embodiment of the present invention; Figure 6 This is a second schematic diagram illustrating the bandwidth configuration principle of a 5G dedicated base station in an embodiment of the present invention.

[0142] When the dedicated base station is a 5G dedicated base station, step S02, namely configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell, includes:

[0143] The SSB center frequency, subcarrier spacing, and cyclic prefix format of the dedicated base station are configured to be consistent with those of the target cell.

[0144] Specifically, in 5G scenarios, to ensure that the PSS and SSS of the dedicated base station are consistent with those of the target cell, and since the SSS and PSS are encapsulated in the SSB, the center frequency and numberology (3GPP TS 38.211 section 8.2.2) of the dedicated base station's SSB (Synchronization Signal / PBCH) must be consistent with those of the target cell, that is, the following conditions must be met:

[0145]

[0146] n DEV =n PUB (11)

[0147] in, The center frequencies of the SSBs of the dedicated base station and the target cell are n, respectively. DEV and n PUB These are the numerology for dedicated base stations and target cells, respectively. The numerology defines the subcarrier spacing and the cyclic prefix format.

[0148] Further, step S12, namely configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain, includes:

[0149] Configure the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble. Configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain.

[0150] Configure the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used to schedule the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling and the identification response signaling avoid the target cell in the frequency domain.

[0151] It should be noted that in 4G, since the SSS and PSS are defined as being in the center of the bandwidth, if the bandwidth of the public network target cell frequency point under the same frequency scheme is the maximum working bandwidth of LTE, 20MHz, then the method of this invention cannot be used. However, in 5G, the position of the SSS in the entire working bandwidth is no longer limited to the center and is flexibly configurable, so this problem does not exist.

[0152] Specifically, in 5G, to ensure that the random access preamble sent by a mobile terminal reselected to a dedicated base station avoids the target cell in the frequency domain, it is sufficient to ensure that the uplink bandwidth of the dedicated base station is greater than half the SSB bandwidth of the target cell, plus the frequency difference between the center of the target cell's SSB and the nearest sideband, plus the bandwidth occupied by the random access preamble. This means configuring the Point A frequency of the dedicated base station. (Defined by 3GPP TS 38.211 Section 4.4.4.2) and the number of uplink RBs The following conditions must be met:

[0153]

[0154] in, The target cell frequency is PointA, and Δf is the subcarrier spacing. (Defined by 3GPP TS38.211 Section 4.4.4.1) is the number of subcarriers per RB. The number of uplink RBs for the target cell. The number of RBs used for the random access preamble.

[0155] Furthermore, the offset of the random access preamble in the frequency domain is determined by the uplink BWP offset used for transmitting the random access preamble. Offset of random access preamble within uplink BWP It is determined (as defined in 3GPP TS 38.211, section 5.3.2) that, in order to ensure that the random access preamble avoids the target cell in the frequency domain, an offset for the uplink BWP used to transmit the random access preamble must be configured. Offset of the random access preamble within the uplink BWP The following conditions must be met:

[0156]

[0157] Furthermore, the frequency domain position of the RRC connection request signaling is determined by the PUSCH frequency resource allocation field in the 27-bit UL GRANT field of the random access response signaling (defined by section 6.2.3 of 3GPP TS 36.321). The RRC connection configuration completion signaling and identification response signaling are transmitted on the PUSCH, and their frequency domain position is configured by the frequency domain resource allocation field (defined by section 7.3.1.1 of 3GPP TS 36.212) and the RRC layer configuration field (defined by section 6.1.2.2 of 3GPP TS 38.214) of the multiple MAC message types used for PUSCH scheduling. To ensure that the RRC connection request and identification response signaling avoid the target cell in the frequency domain, the offset of the uplink BWP used by the dedicated base station's random access response signaling and the multiple MAC message types used for PUSCH scheduling to carry the random access response signaling and PUSCH needs to be configured. and the number of RBs in the uplink BWP The following conditions must be met:

[0158]

[0159] Furthermore, step S12, namely configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain, further includes:

[0160] When the frequency domain portion of the dedicated base station bandwidth that does not overlap with the target cell bandwidth is insufficient to accommodate the RRC connection request signaling and the bandwidth occupied by the PUSCH in the frequency domain, the dedicated base station bandwidth is increased, and the dedicated base station is configured to meet the following conditions:

[0161]

[0162] By employing the technical means of this invention, the above configuration enables the key uplink communication parameters of the mobile terminal to avoid the target cell in the frequency domain during the process of the mobile terminal reporting the mobile terminal identification code on the 5G dedicated base station. This avoids interference from other mobile terminals registered on the same frequency 5G cell in the public network, thereby improving the numbering rate or positioning accuracy under the same frequency scheme.

[0163] Furthermore, step S12, namely configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain, further includes:

[0164] Configure the frequency resource allocation field of the PUSCH used to carry the uplink DMRS so that the uplink DMRS avoids the target cell in the frequency domain;

[0165] Configure the uplink SRS to offset in the frequency domain so that at least one set of uplink SRSs avoids the target cell in the frequency domain.

[0166] Specifically, the uplink DMRS is similar to the 4G case. The uplink DMRS, which is restricted to the PUSCH in the frequency domain, has avoided the target cell through the above configuration.

[0167] Similar to 4G, in 5G, uplink SRS is still divided into N b Groups, each group occupies m PRBs. SRS,b To ensure that at least one uplink SRS group avoids the target cell in the frequency domain, a dedicated base station needs to be configured so that the nth... b Frequency offset of group SRS (As defined in Section 6.4.1.4.3 of 3GPP TS 38.211) In addition to meeting the 3GPP specification requirements, the following conditions must also be met:

[0168]

[0169] The configuration of the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes:

[0170] When the sidebands on both sides of the dedicated base station bandwidth that do not overlap with the target cell bandwidth are insufficient to accommodate the minimum bandwidth occupied by at least one uplink SRS in the frequency domain, the dedicated base station bandwidth is increased; and the number of uplink RBs of the dedicated base station is configured. The following conditions must be met:

[0171]

[0172] By employing the technical means of this invention, the above configuration enables the key uplink information of the 5G dedicated base station during the numbering and ranging and positioning of the target mobile terminal to avoid the target frequency point of the public network in the frequency domain, thus avoiding interference from other mobile terminals registered on the same frequency 5G cell in the public network, and improving the numbering rate or positioning accuracy under the same frequency scheme.

[0173] See Figure 7 This is a schematic diagram of the structure of a bandwidth configuration device for a dedicated base station provided in an embodiment of the present invention. The embodiment of the present invention provides a bandwidth configuration device 20 for a dedicated base station, comprising:

[0174] Uplink communication parameter determination module 21 is used to determine the uplink communication parameters between the mobile terminal and the dedicated base station after the mobile terminal reselects to the dedicated base station;

[0175] The uplink bandwidth configuration module 22 is used to configure the uplink bandwidth of the dedicated base station receiving the uplink communication parameters to avoid the target cell in the frequency domain.

[0176] Preferably, the device 20 further includes:

[0177] The necessary radio frequency parameter determination module is used to determine the necessary radio frequency parameters of the dedicated base station under the same frequency scheme; wherein, the necessary radio frequency parameters refer to the radio frequency parameters that need to be configured to be consistent between the dedicated base station and the target cell;

[0178] The necessary radio frequency parameter configuration module is used to configure the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell.

[0179] In a preferred embodiment, the uplink communication parameters include: during the process of the mobile terminal reselecting to the dedicated base station and reporting the mobile terminal identification code, the mobile terminal sends the random access preamble, RRC connection request signaling, RRC connection configuration completion signaling and identification response signaling to the dedicated base station.

[0180] Preferably, when the dedicated base station is a 4G dedicated base station, the uplink bandwidth configuration module 22 is specifically used for:

[0181] Configure the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, and configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain;

[0182] Configure the frequency hopping flag and RB allocation field in the random access response signaling, as well as the frequency hopping flag and RB allocation field in the downlink MAC message DCI0, so that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain.

[0183] Preferably, when the dedicated base station is a 5G dedicated base station, the uplink bandwidth configuration module 22 is specifically used for:

[0184] Configure the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble. Configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain.

[0185] Configure the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used to schedule the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling and the identification response signaling avoid the target cell in the frequency domain.

[0186] In a preferred embodiment, the uplink communication parameters further include: during the positioning process of the mobile terminal by the dedicated base station, the mobile terminal sends an uplink channel sounding reference signal (SRS) and an uplink demodulation reference signal (DMRS) to the dedicated base station.

[0187] Preferably, the uplink bandwidth configuration module 22 is specifically used for:

[0188] Configure the frequency resource allocation field of the PUSCH used to carry the uplink DMRS so that the uplink DMRS avoids the target cell in the frequency domain;

[0189] Configure the uplink SRS to offset in the frequency domain so that at least one set of uplink SRSs avoids the target cell in the frequency domain.

[0190] By employing the technical means of this invention, a dedicated base station is configured to obtain an uplink frequency domain that does not overlap with the target cell under the same frequency scheme configuration. This allows the uplink information between the mobile terminal and the dedicated base station to avoid the target cell in the frequency domain. The mobile terminal that reselects to the dedicated base station transmits the uplink information in the uplink frequency domain that does not overlap with the target cell. This reduces or avoids the problem of uplink communication being interfered with by other mobile terminals registered on the same frequency cell of the public network after the mobile terminal reselects to the dedicated base station. It also ensures that the probability of the mobile terminal scanning and quickly reselecting to the dedicated base station is consistent with the existing same frequency scheme.

[0191] It should be noted that the bandwidth configuration device for a dedicated base station provided in this embodiment of the invention is used to execute all the process steps of the bandwidth configuration method for a dedicated base station in the above embodiment. The working principles and beneficial effects of the two are one-to-one, so they will not be described again.

[0192] See Figure 8 This is a schematic diagram of the structure of a bandwidth configuration device for a dedicated base station provided in an embodiment of the present invention. The present invention also provides a bandwidth configuration device 30 for a dedicated base station, including a processor 31, a memory 32, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the bandwidth configuration method for a dedicated base station as described in any of the above embodiments.

[0193] This invention also provides a computer-readable storage medium, which includes a stored computer program, wherein the computer program, when running, controls the device where the computer-readable storage medium is located to execute the bandwidth configuration method for a dedicated base station as described in any of the above embodiments.

[0194] This invention also provides a computer program product, which includes a computer program or computer instructions. When the computer program or computer instructions are executed by a processor, they implement the bandwidth configuration method for a dedicated base station as described in any of the above embodiments.

[0195] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0196] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A bandwidth configuration method for a dedicated base station, characterized in that, include: After determining that the mobile terminal has reselected the dedicated base station, the uplink communication parameters between the mobile terminal and the dedicated base station are determined. Configure the uplink bandwidth of the dedicated base station for receiving the uplink communication parameters to avoid the target cell in the frequency domain; The uplink communication parameters include: during the process of the mobile terminal reselecting to the dedicated base station and reporting the mobile terminal identification code, the mobile terminal sends the random access preamble, RRC connection request signaling, RRC connection configuration completion signaling and identification response signaling to the dedicated base station; When the dedicated base station is a 5G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain includes: Configure the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble. Configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain. Configure the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used to schedule the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling and the identification response signaling avoid the target cell in the frequency domain.

2. The bandwidth configuration method for a dedicated base station as described in claim 1, characterized in that, When the dedicated base station is a 4G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain includes: Configure the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, and configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain; Configure the frequency hopping flag and RB allocation field in the random access response signaling, as well as the frequency hopping flag and RB allocation field in the downlink MAC message DCI0, so that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain.

3. The bandwidth configuration method for a dedicated base station as described in claim 2, characterized in that, The configuration of the dedicated base station uplink bandwidth being greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble, and the configuration of the frequency domain offset of the random access preamble to ensure that the random access preamble avoids the target cell in the frequency domain, includes: Configure the uplink PRB number of the dedicated base station The following condition must be met for the uplink bandwidth of the dedicated base station to be greater than or equal to the sum of the uplink bandwidth of the target cell and twice the bandwidth occupied by the random access preamble: Configure the offset of the random access preamble in the frequency domain The following conditions must be met: The frequency hopping flag and RB allocation field in the configuration random access response signaling, and the frequency hopping flag and RB allocation field in the downlink MAC message DCI0, are configured to ensure that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain, including: The PRB sequence number of the first PRB in a continuous segment of frequency domains for configuring the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling. Total PRB number and the number of uplink PRBs of the dedicated base station The following conditions must be met: in, The uplink PRB number of the target cell. The number of uplink PRBs occupied by the random access preamble.

4. The bandwidth configuration method for a dedicated base station as described in claim 3, characterized in that, When the dedicated base station is a 4G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes: When the frequency hopping flag is 1, the frequency hopping frequency offset is configured. The following conditions must be met: When the bandwidth of the dedicated base station is insufficient to accommodate the minimum bandwidth occupied in the frequency domain by the PUSCH used to carry the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling, where the bandwidth of the dedicated base station does not overlap with that of the target cell, the bandwidth of the dedicated base station is increased, and the uplink PRB number of the dedicated base station is configured. The following conditions must be met:

5. The bandwidth configuration method for a dedicated base station as described in claim 1, characterized in that, The configuration of the dedicated base station uplink bandwidth being greater than or equal to half the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble, and the configuration of the random access preamble offset in the frequency domain to ensure that the random access preamble avoids the target cell in the frequency domain, includes: Configure the PointA frequency of the dedicated base station With the number of uplink RBs The following conditions must be met for the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble: Configure the offset for transmitting the uplink BWP of the random access preamble. Offset of the random access preamble within the uplink BWP The following conditions must be met: The configuration of the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used for scheduling the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling, and the identification response signaling avoid the target cell in the frequency domain, includes: Configure the offset between the random access response signaling and the uplink BWP of the PUSCH. and the number of RBs in the uplink BWP The following conditions must be met: in, The PointA frequency of the target cell. For subcarrier spacing, The number of subcarriers for each RB, The number of uplink RBs in the target cell. The number of RBs occupied by the random access preamble.

6. The bandwidth configuration method for a dedicated base station as described in claim 5, characterized in that, When the dedicated base station is a 5G dedicated base station, configuring the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes: When the frequency domain portion of the dedicated base station bandwidth that does not overlap with the target cell bandwidth is insufficient to accommodate the RRC connection request signaling and the bandwidth occupied by the PUSCH in the frequency domain, the dedicated base station bandwidth is increased, and the dedicated base station is configured to meet the following conditions:

7. The bandwidth configuration method for a dedicated base station as described in claim 1, characterized in that, The uplink communication parameters also include: during the positioning process of the mobile terminal by the dedicated base station, the mobile terminal sends an uplink channel sounding reference signal (SRS) and an uplink demodulation reference signal (DMRS) to the dedicated base station.

8. The bandwidth configuration method for a dedicated base station as described in claim 7, characterized in that, The configuration of the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes: Configure the frequency resource allocation field of the PUSCH used to carry the uplink DMRS so that the uplink DMRS avoids the target cell in the frequency domain; Configure the uplink SRS to offset in the frequency domain so that at least one set of uplink SRSs avoids the target cell in the frequency domain.

9. The bandwidth configuration method for a dedicated base station as described in claim 8, characterized in that, When the dedicated base station is a 4G dedicated base station, configuring the uplink SRS offset in the frequency domain to ensure that at least one set of uplink SRSs avoids the target cell in the frequency domain includes: Configuration number Frequency offset of the uplink SRS The following conditions must be met: The uplink SRS is divided into: Group, The number of PRBs used in each group. The number of uplink RBs for the dedicated base station. The number of uplink RBs in the target cell. This represents the number of uplink subcarriers for a single RB.

10. The bandwidth configuration method for a dedicated base station as described in claim 9, characterized in that, When the dedicated base station is a 5G dedicated base station, configuring the uplink SRS offset in the frequency domain to ensure that at least one set of uplink SRSs avoids the target cell in the frequency domain includes: Configuration number Frequency offset of the uplink SRS The following conditions must be met: The uplink SRS is divided into: Group, The number of PRBs used in each group. The PointA frequency of the dedicated base station, The PointA frequency of the target cell. The number of uplink RBs in the target cell. The number of uplink subcarriers for a single RB. The subcarrier spacing.

11. The bandwidth configuration method for a dedicated base station as described in claim 9 or 10, characterized in that, The configuration of the uplink bandwidth for receiving the uplink communication parameters on the dedicated base station to avoid the target cell in the frequency domain further includes: When the sidebands on both sides of the dedicated base station bandwidth that do not overlap with the target cell bandwidth are insufficient to accommodate the minimum bandwidth occupied by at least one set of uplink SRS in the frequency domain, the dedicated base station bandwidth is increased. And when the dedicated base station is a 4G dedicated base station, configure the number of uplink RBs for the dedicated base station. The following conditions must be met: When the dedicated base station is a 5G dedicated base station, configure the number of uplink RBs for the dedicated base station. The following conditions must be met:

12. The bandwidth configuration method for a dedicated base station as described in claim 1, characterized in that, Before determining the uplink communication parameters between the mobile terminal and the dedicated base station after the mobile terminal reselects to the dedicated base station, the method further includes: Determine the necessary radio frequency parameters of the dedicated base station under the same frequency scheme; wherein, the necessary radio frequency parameters refer to the radio frequency parameters that need to be configured to be consistent between the dedicated base station and the target cell; Configure the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell.

13. The bandwidth configuration method for a dedicated base station as described in claim 12, characterized in that, The necessary radio frequency parameters are the primary synchronization signal and the secondary synchronization signal; When the dedicated base station is a 4G dedicated base station, configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell includes: Configure the downlink center frequency of the dedicated base station to be consistent with the downlink center frequency of the target cell; When the dedicated base station is a 5G dedicated base station, configuring the necessary radio frequency parameters of the dedicated base station to be consistent with the radio frequency parameters corresponding to the target cell includes: The SSB center frequency, subcarrier spacing, and cyclic prefix format of the dedicated base station are configured to be consistent with those of the target cell.

14. A bandwidth configuration device for a dedicated base station, characterized in that, include: The uplink communication parameter determination module is used to determine the uplink communication parameters between the mobile terminal and the dedicated base station after the mobile terminal reselects to the dedicated base station; The uplink bandwidth configuration module is used to configure the uplink bandwidth of the dedicated base station receiving the uplink communication parameters to avoid the target cell in the frequency domain; The uplink communication parameters include: during the process of the mobile terminal reselecting to the dedicated base station and reporting the mobile terminal identification code, the mobile terminal sends the random access preamble, RRC connection request signaling, RRC connection configuration completion signaling and identification response signaling to the dedicated base station; When the dedicated base station is a 5G dedicated base station, the uplink bandwidth configuration module is specifically used for: Configure the uplink bandwidth of the dedicated base station to be greater than or equal to half of the SSB bandwidth of the target cell, the frequency difference between the SSB center of the target cell and the nearest sideband, and the bandwidth occupied by the random access preamble. Configure the offset of the random access preamble in the frequency domain so that the random access preamble avoids the target cell in the frequency domain. Configure the PUSCH frequency resource allocation field in the random access response signaling, and the frequency domain resource allocation field in multiple MAC message types used to schedule the PUSCH carrying the RRC connection configuration completion signaling and the identification response signaling, so that the RRC connection request signaling, the RRC connection configuration completion signaling and the identification response signaling avoid the target cell in the frequency domain.

15. A bandwidth configuration device for a dedicated base station, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the bandwidth configuration method for a dedicated base station as described in any one of claims 1 to 13.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform the bandwidth configuration method for a dedicated base station as described in any one of claims 1 to 13.

17. A computer program product, characterized in that, The computer program product includes a computer program or computer instructions, which, when executed by a processor, implement the bandwidth configuration method for a dedicated base station as described in any one of claims 1 to 13.

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