5g broadcast dynamic single frequency network configuration method based on interference prediction

Abstract

The application provides a 5G broadcast dynamic single frequency network configuration method based on interference prediction, comprising the following steps: integrating a frequency scanning unit in a 5G broadcast base station; submitting the collected spectrum interference state data to a broadcast control unit based on the link between base stations; dynamically deciding based on the spectrum scanning result and the 5G single frequency network frequency planning, for judging whether the edge terminal user can receive and demodulate the broadcast signal based on the current frequency for 5G broadcast in the most extreme case; informing the 5G broadcast base station of the current single frequency network decision by the broadcast control unit, performing spectrum allocation and resource allocation according to the frequency scheduling instruction after the 5G broadcast base station receives the frequency scheduling instruction; and performing 5G broadcast signal broadcasting on the determined frequency band by the 5G broadcast base station. The application realizes the dynamic configuration of single frequency band single frequency network and multi frequency band single frequency network based on distributed spectrum scanning data, and realizes the accurate coverage of the broadcast area.

Description

Technical Field

[0001] This application relates to the field of 5G broadcast technology, and in particular to a method for configuring a dynamic single-frequency network for 5G broadcast based on interference prediction. Background Technology

[0002] 5G broadcasting technology is based on 3GPP standards and uses a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) for signal transmission. It utilizes broadcast towers to transmit signals, supporting reception on both large television screens and small mobile phone screens, and can provide various audiovisual services and public services such as live broadcast television, emergency broadcasts, and data transmission. Compared with traditional communication technologies, 5G broadcasting has the following significant characteristics:

[0003] (1) Efficient use of spectrum resources: Supports broadcast single-frequency networks, which can achieve large-area coverage on the same frequency band by synchronously transmitting the same signal, thereby improving spectrum utilization. For example, in urban emergency broadcasting scenarios, the 700MHz golden frequency band can be used to achieve coverage of the entire urban area with less frequency resources.

[0004] (2) Wide coverage and strong penetration: Supports high-power transmission from large towers, with a station spacing of up to 100km, low signal transmission delay, and effective resistance to sudden channel fading. In complex terrain environments such as mountainous and remote areas, the signal can still achieve long-distance transmission and penetrate obstacles to ensure the dissemination of emergency information. For example, when an earthquake occurs in a mountainous area, the 5G broadcast signal transmitted by the broadcasting tower can cover a large surrounding area, providing rescue information to the affected people.

[0005] (3) Mobility support: The transmission rate can reach 250km / h at mobile speeds, meeting the communication needs of mobile scenarios in emergency rescue. For example, it can stably receive 5G broadcast signals on mobile platforms such as emergency command vehicles and rescue helicopters, ensuring the continuity of rescue command.

[0006] (4) Low-cost terminal reception: No SIM card is required, it can cover all mobile terminals, and users receive data without data charges, which lowers the threshold for emergency communication and ensures that disaster-stricken people can easily obtain emergency information when disasters occur.

[0007] However, while the current application of 5G broadcast static single-frequency network (SFN) in terrestrial broadcasting has certain advantages, it also has some obvious disadvantages:

[0008] (1) No support for network splitting: A major drawback of SFN is that it does not support network splitting. All transmitters must broadcast the same information simultaneously on the same frequency, making it impossible to divide the network into different areas or parts to provide different content. This limitation can be a disadvantage in situations where localized or region-specific content is required.

[0009] (2) Spectrum resource occupation: 5G broadcast services will occupy downlink spectrum resources stably for a long time, while mobile communication services themselves also require a large amount of downlink resources. This mutual constraint on resources may lead to a decline in network performance.

[0010] (3) Unable to adjust coverage area: The distribution of 5G broadcast users will change over time. When there are fewer users or no users, the coverage area of ​​the 5G broadcast single frequency network can be adjusted. The static single frequency network cannot make such coverage area adjustments.

[0011] The method described in this embodiment can achieve the following:

[0012] (1) Dynamic resource allocation: The coverage and resource allocation of the single frequency network (SFN) are dynamically adjusted according to real-time service needs to avoid the waste of resources of the fixed SFN.

[0013] (2) On-demand networking: Dynamically create and adjust SFN areas, and automatically release resources after completion. Summary of the Invention

[0014] The present invention and method aim to solve the following key technical problems: how to improve the spectrum utilization, anti-interference ability and network adaptability of broadcast single-frequency networks, especially in scenarios such as emergency communication and rapid networking of 5G broadcast.

[0015] In view of this, the present invention provides a method for configuring a dynamic single-frequency network for 5G broadcast based on interference prediction.

[0016] This invention proposes a 5G broadcast dynamic single-frequency network configuration method based on interference prediction, comprising:

[0017] Step 1: Integrate a frequency scanning unit in the 5G broadcast base station. The scanning unit is used to perform spectrum scanning of the available frequency bands for 5G broadcasting in the 5G base station area.

[0018] Step 2: The 5G broadcast base station, based on the link between base stations, submits the collected spectrum interference status data to the broadcast control unit to provide data support for 5G single-frequency network frequency planning;

[0019] Step 3: The broadcast control unit makes dynamic decisions based on the spectrum scanning results and the 5G single-frequency network frequency planning to determine whether, in the most extreme case, terminal users at the cell edge can receive the demodulated broadcast signal based on the current frequency for 5G broadcasting.

[0020] If the signal-to-interference-to-noise ratio of the frequency used by a single MBSFN cannot meet the requirements for normal reception of broadcast signals, the frequency of the current base station will be adjusted to build a new single-frequency network, so that multiple MBSFNs can achieve the coverage target of the broadcast area. If the frequency currently used meets the normal reception conditions, the base station will join the current single-frequency network.

[0021] Step 4: The broadcast control unit notifies the 5G broadcast base station of the current single-frequency network decision. After receiving the frequency scheduling instruction, the 5G broadcast base station performs spectrum allocation and resource allocation according to the frequency scheduling instruction.

[0022] Step 5: The 5G broadcast base station broadcasts 5G broadcast signals on the determined frequency band.

[0023] In one embodiment, prior to step 3, the method further includes:

[0024] Configure known parameters: Base station broadcast signal transmit power: P_BC (dBm), Cell radius: R (m), Broadcast signal bandwidth: BW_BC (Hz), Interference power measured by the base station in the downlink frequency band: I_BS (dBm), Propagation model: Path loss formula PL(d), Path loss PL0 at reference distance d0, Minimum path loss PL_min, Path loss exponent n, Thermal noise spectral density: N0 (dBm / Hz), Minimum SINR required for broadcast signal demodulation: SINR_req (dB).

[0025] In one implementation, step 3 specifically includes:

[0026] Based on the expected broadcast coverage, obtain the typical path loss value PL_R at the cell edge;

[0027] Calculate the reference signal received power RSRP_edge at the cell coverage edge = P_BC - PL_R;

[0028] Assuming the transmitted power of the interfering signal is P_int, and the interfering signal measured by the base station is I_BS = P_int - PL_R, the estimated power of the interfering signal is P_int = I_BS + PL_R.

[0029] Assuming an extreme case where the interference source is at the cell edge and the closest distance from the interference source to the terminal is 1 meter, the path loss PL_min from the interference source to the terminal is assumed to be 30dB. The interference signal power at the terminal is then estimated as I_edge = P_int - PL_min = I_BS + PL_R - PL_min.

[0030] The total interference power at the terminal is obtained as I_total = 10^(I_edge / 10) + 10^(N0 / 10);

[0031] Calculate the signal-to-noise ratio (SNR) of the broadcast signal interference at the cell edge: SINR_edge = RSRP_edge - 10*log10(I_total);

[0032] Compare SINR_edge and SINR_req. If SINR_edge >= SINR_req, the broadcast signal can be received normally; otherwise, it cannot.

[0033] If the broadcast signal at the current frequency can be received normally, this base station will be added to the current MBSFN according to the frequency of that day; if the broadcast signal at the current frequency cannot be received normally, a new broadcast frequency needs to be set to build multiple MBSFNs.

[0034] In one embodiment, the method further includes:

[0035] The 5G broadcast base station monitors the frequency interference level of each base station and the reception quality information of other broadcasts in real time.

[0036] The broadcast control unit analyzes and monitors data, and adjusts parameters including the transmission power, signal modulation method, and time slot allocation of relevant base stations to improve the signal quality and communication capacity of the area. The broadcast control unit coordinates the synchronization between different base stations to ensure that the signals transmitted by each base station are consistent in time and frequency in a single-frequency network.

[0037] The adjustment strategy for dynamic single-frequency networks based on interference measurement adjusts frequency bands and other parameters based on the expansion and contraction of the coverage area.

[0038] When the broadcast range requirement expands, frequency band interference data is obtained through spectrum scanning of the base station. The broadcast control unit then incorporates eligible base stations in the vicinity or adds new base stations into the single-frequency network range to expand the coverage area. During this process, the broadcast control unit adjusts the transmission parameters of these new base stations to enable them to work in coordination with the base stations in the original single-frequency network, thereby achieving seamless coverage of the area.

[0039] When 5G broadcast coverage is no longer needed in some areas, the broadcast control unit reduces the coverage of the single-frequency network in a timely manner according to changes in user distribution, and removes the unnecessary base stations from the single-frequency network.

[0040] In one embodiment, the method further includes:

[0041] When interference exists in the frequency band used by MBSFN and the broadcast terminal cannot receive the broadcast signal normally, the broadcast control unit sets up multiple MBSFNs in the broadcast coverage area to achieve coverage of the target area.

[0042] Another aspect of the present invention provides an electronic device, comprising: a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the 5G broadcast dynamic single-frequency network configuration method based on interference prediction as described in any of the preceding claims.

[0043] Another aspect of the present invention provides a computer-readable storage medium, comprising: a computer program stored on the medium, the computer program being executed to implement the 5G broadcast dynamic single-frequency network configuration method based on interference prediction as described in any of the preceding claims.

[0044] By adopting the above technical solution, the present invention has at least the following advantages:

[0045] This invention proposes a decision-making process and method for using a spectrum scanning unit based on a broadcast base station to perform interference testing, evaluating broadcast signal coverage performance based on interference test data, and then configuring a single-frequency network. This method can achieve dynamic configuration of single-band single-frequency networks and multi-band single-frequency networks based on distributed spectrum scanning data, thereby achieving accurate coverage of broadcast areas. Attached Figure Description

[0046] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0047] Figure 1 This is a flowchart illustrating the 5G broadcast dynamic single-frequency network configuration method based on interference prediction according to an embodiment of the present invention.

[0048] Figure 2 This is a diagram of a spectrum-aware 5G broadcast network architecture according to an embodiment of the present invention;

[0049] Figure 3 This is a flowchart of a 5G broadcast process based on a dynamic single-frequency network according to an embodiment of the present invention;

[0050] Figure 4 This is a flowchart illustrating the decision-making process for a 5G broadcast dynamic single-frequency network according to an embodiment of the present invention.

[0051] Figure 5 A flowchart illustrating the adjustment process of a single-band broadcast single-frequency network according to an embodiment of the present invention;

[0052] Figure 6 This is a flowchart illustrating the adjustment process of a single-band broadcast single-frequency network according to an embodiment of the present invention. Detailed Implementation

[0053] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0054] While exemplary embodiments of the invention are shown in the accompanying drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey its scope to those skilled in the art. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0055] The first embodiment of the present invention provides a method and apparatus for configuring a 5G broadcast dynamic single-frequency network based on interference prediction, as follows: Figure 1 As shown, it includes the following steps:

[0056] Step 1: Integrate a frequency scanning unit in the 5G broadcast base station. The scanning unit is used to perform spectrum scanning of the available frequency bands for 5G broadcasting in the 5G base station area.

[0057] Step 2: The 5G broadcast base station, based on the link between base stations, submits the collected spectrum interference status data to the broadcast control unit to provide data support for 5G single-frequency network frequency planning;

[0058] Step 3: The broadcast control unit makes dynamic decisions based on the spectrum scanning results and the 5G single-frequency network frequency planning to determine whether, in the most extreme case, terminal users at the cell edge can receive the demodulated broadcast signal based on the current frequency for 5G broadcasting.

[0059] If the signal-to-interference-to-noise ratio of the frequency used by a single MBSFN cannot meet the requirements for normal reception of broadcast signals, the frequency of the current base station will be adjusted to build a new single-frequency network, so that multiple MBSFNs can achieve the coverage target of the broadcast area. If the frequency currently used meets the normal reception conditions, the base station will join the current single-frequency network.

[0060] Step 4: The broadcast control unit notifies the 5G broadcast base station of the current single-frequency network decision. After receiving the frequency scheduling instruction, the 5G broadcast base station performs spectrum allocation and resource allocation according to the frequency scheduling instruction.

[0061] Step 5: The 5G broadcast base station broadcasts 5G signals on the determined frequency band.

[0062] The method provided in this embodiment will be described in detail below.

[0063] 1. In a specific application example, the process for building a 5G broadcast single-frequency network is as follows:

[0064] (1) A frequency scanning unit integrated into the 5G broadcast base station, which can realize spectrum scanning of the available frequency bands for 5G broadcast in the 5G base station area.

[0065] (2) Based on the link between base stations, the 5G base station submits the collected spectrum interference status data to the broadcast control unit to provide data support for the frequency planning of 5G single-frequency network.

[0066] (3) The broadcast control unit makes dynamic decisions based on the spectrum scanning results and the frequency planning of the 5G single-frequency network. The decision-making process is mainly based on whether the terminal users at the cell edge can receive the demodulated broadcast signal in the most extreme case.

[0067] If the signal-to-interference-to-noise ratio (SNR) of the frequency used by a single MBSFN is insufficient for normal broadcast signal reception, the frequency of the current base station needs to be adjusted to construct a new single-frequency network, enabling multiple MBSFNs to achieve broadcast coverage. If the currently used frequency meets the normal reception requirements, the base station joins the current single-frequency network.

[0068] (4) The broadcast control unit notifies the broadcast base station of the current single-frequency network decision. After receiving the frequency scheduling instruction, the 5G broadcast base station performs spectrum allocation and resource allocation according to the frequency scheduling instruction.

[0069] (5) The broadcast base station broadcasts 5G broadcast signals on the determined frequency band.

[0070] 2. In the above example, the specific method for configuring a 5G broadcast dynamic single-frequency network based on interference prediction in step (3) is as follows:

[0071] The method assumes that the parameters are known:

[0072] - Base station broadcast signal transmission power: P_BC (dBm)

[0073] - Cell radius: R (m)

[0074] - Broadcast signal bandwidth usage: BW_BC (Hz)

[0075] - Interference power measured by the base station during downlink frequency band scanning (on the same bandwidth BW_BC): I_BS (dBm)

[0076] - Propagation model: Path loss formula PL(d) (e.g., PL(d) = PL0 + 10 * n * log10(d))

[0077] - Path loss PL0 at a reference distance d0 (e.g., d0 = 1m or 1000m, depending on the model)

[0078] - Minimum path loss PL_min, assuming the minimum distance from the signal source to the terminal is 1 meter, then the path loss PL_min (1 meter) is approximately 30dB (refer to free space: 2GHz path loss at 1 meter = 20*log10(4πd / λ)≈20*log10(4*3.14*1 / 0.15)≈20*log10(83.73)≈38.5dB).

[0079] - Path loss exponent n

[0080] - Thermal noise spectral density: N0 (dBm / Hz) (typically -174 dBm / Hz)

[0081] - Minimum SINR required for broadcast signal demodulation: SINR_req (dB)

[0082] The decision-making steps for a single-frequency network are as follows:

[0083] (1) Based on the expected coverage of the broadcast, obtain the typical path loss value PL_R at the cell edge.

[0084] (2) Calculate the reference signal received power RSRP_edge = P_BC - PL_R at the cell coverage edge.

[0085] (3) Assuming the power of the transmitted signal of the existing interference signal is P_int, the interference signal measured by the base station is I_BS = P_int - PL_R, and the power of the interference signal is estimated as P_int = I_BS + PL_R.

[0086] (4) Assuming an extreme case where the interference source is at the cell edge and the shortest distance from the interference source to the terminal is 1 meter, the path loss PL_min from the interference source to the terminal is assumed to be 30dB. The interference signal power at the terminal is estimated as I_edge = P_int - PL_min = I_BS + PL_R - PL_min.

[0087] (5) The total interference power at the terminal is I_total = 10^(I_edge / 10) + 10^(N0 / 10).

[0088] (6) Calculate the signal-to-noise ratio (SNR) of the broadcast signal at the cell edge: SINR_edge = RSRP_edge - 10*log10(I_total).

[0089] (7) Compare SINR_edge and SINR_req. If SINR_edge >= SINR_req, the broadcast signal can be received normally; otherwise, it cannot.

[0090] (8) If the broadcast signal of the current frequency can be received normally, the base station can be added to the current MBSFN according to the frequency of the day; if the broadcast signal of the current frequency cannot be received normally, a new broadcast frequency needs to be set to build multiple MBSFNs.

[0091] 3.5G Broadcast Dynamic Single-Frequency Network Coverage Area Adjustment Method

[0092] 5G broadcast base stations monitor the frequency interference levels of each base station in real time, as well as the reception quality of other broadcasts. The broadcast control unit analyzes this data and adjusts parameters such as the transmit power, signal modulation method, and time slot allocation of relevant base stations to improve signal quality and communication capacity in the area. Simultaneously, the broadcast control unit coordinates synchronization between different base stations to ensure that the signals transmitted by each base station in the single-frequency network remain highly consistent in time and frequency, avoiding mutual interference and significantly improving coverage.

[0093] The adjustment strategy of dynamic single-frequency network based on interference measurement adjusts the frequency band and other parameters based on the expansion and contraction of the coverage area.

[0094] When the broadcast range requirement expands, frequency band interference data is obtained through spectrum scanning of base stations. The broadcast control unit then incorporates eligible nearby base stations or newly added base stations into the single-frequency network, expanding the coverage area. During this process, the broadcast control unit adjusts the transmission parameters of these newly added base stations to enable them to work collaboratively with the base stations already in the original single-frequency network, achieving seamless coverage of the area.

[0095] When 5G broadcast coverage is no longer needed in certain areas, the broadcast control unit will promptly reduce the coverage of the single-frequency network based on changes in user distribution and remove the no longer needed base stations from the single-frequency network.

[0096] 4. Configuration method of multi-band broadcast single-frequency network

[0097] When interference exists in the frequency band used by an MBSFN, preventing broadcast terminals from receiving broadcast signals normally, the broadcast control unit (BCU) sets up multiple MBSFNs (Broadcast Single Frequency Networks) within the broadcast coverage area to achieve coverage of the target area. Based on the distribution and intensity of interference sources, the coverage area is scientifically divided into multiple sub-regions, each with its own independent MBSFN. For example, in an urban area severely affected by co-channel interference, the area can be divided into two sub-regions, with MBSFN1 and MBSFN2 set up respectively. For each MBSFN, a suitable frequency band is selected for signal transmission. Different 5G broadcast frequency bands can be used, and reasonable frequency allocation avoids interference between different MBSFNs. For example, MBSFN1 uses the 758MHz-768MHz band, and MBSFN2 uses the 768MHz-778MHz band. Simultaneously, within each MBSFN, the MCE (Multi-Channel Equipment) performs strict synchronization and coordination of the base stations to ensure that the signals within the single frequency network maintain a high degree of consistency in time, frequency, and phase, further reducing internal interference.

[0098] In summary, compared with the prior art, the advantages of the method provided in this embodiment are at least as follows:

[0099] 1) This invention proposes a decision-making process and method for using a spectrum scanning unit based on a broadcast base station to perform interference testing, evaluating the broadcast signal coverage performance based on the interference test data, and then configuring a single-frequency network. This method can achieve dynamic configuration of single-band single-frequency networks and multi-band single-frequency networks based on distributed spectrum scanning data, thereby achieving accurate coverage of the broadcast area.

[0100] 2) In particular, the method provided by the embodiments of the present invention can significantly improve the spectrum utilization, anti-interference capability and network adaptability of broadcast single-frequency networks, and is especially suitable for emergency communication and rapid networking scenarios of 5G broadcast.

[0101] According to a second embodiment of the present invention, an electronic device includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the 5G broadcast dynamic single-frequency network configuration method based on interference prediction as described in the first embodiment.

[0102] According to a third embodiment of the present invention, a computer-readable storage medium includes a computer program stored on the medium, the computer program being executed to implement the 5G broadcast dynamic single-frequency network configuration method based on interference prediction as described in the first embodiment.

[0103] It should be noted that, in the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0104] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0105] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0106] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.

Claims

1. A method for configuring a 5G broadcast dynamic single-frequency network based on interference prediction, characterized in that, include: Step 1: Integrate a frequency scanning unit in the 5G broadcast base station. The scanning unit is used to perform spectrum scanning of the available frequency bands for 5G broadcasting in the 5G base station area. Step 2: The 5G broadcast base station, based on the link between base stations, submits the collected spectrum interference status data to the broadcast control unit to provide data support for 5G single-frequency network frequency planning; Step 3: The broadcast control unit makes dynamic decisions based on the spectrum scanning results and the 5G single-frequency network frequency planning to determine whether, in the most extreme case, terminal users at the cell edge can receive the demodulated broadcast signal based on the current frequency for 5G broadcasting. If the signal-to-interference-to-noise ratio of the frequency used by a single MBSFN cannot meet the requirements for normal reception of broadcast signals, the frequency of the current base station will be adjusted to build a new single-frequency network, so that multiple MBSFNs can achieve the coverage target of the broadcast area. If the frequency currently used meets the normal reception conditions, the base station will join the current single-frequency network. Step 4: The broadcast control unit notifies the 5G broadcast base station of the current single-frequency network decision. After receiving the frequency scheduling instruction, the 5G broadcast base station performs spectrum allocation and resource allocation according to the frequency scheduling instruction. Step 5: The 5G broadcast base station broadcasts 5G broadcast signals on the determined frequency band; Before step 3, the method further includes: Known parameters: Base station broadcast signal transmit power: P_BC, in dBm; Cell radius: R, in m; Broadcast signal bandwidth: BW_BC, in Hz; Interference power measured by the base station in the downlink frequency band: I_BS, in dBm; Propagation model: Path loss formula, Path loss PL0 at reference distance d0, Minimum path loss PL_min, Path loss exponent n; Thermal noise spectral density: N0, in dBm / Hz; Minimum SINR required for broadcast signal demodulation: SINR_req, in dB. Step 3 specifically includes: Based on the expected broadcast coverage, obtain the typical path loss value PL_R at the cell edge; Calculate the reference signal received power RSRP_edge at the cell coverage edge = P_BC - PL_R; The interference power measured by the base station is I_BS = P_int - PL_R, from which the interference signal power estimate P_int = I_BS + PL_R is obtained; Assuming an extreme case where the interference source is at the cell edge and the closest distance from the interference source to the terminal is 1 meter, the path loss PL_min from the interference source to the terminal is assumed to be 30dB. The estimated interference signal power at the terminal is I_edge = P_int -PL_min = I_BS + PL_R - PL_min. The total interference power at the terminal is obtained as I_total = 10^(I_edge / 10) + 10^(N0 / 10); Calculate the signal-to-noise ratio (SNR) of the broadcast signal interference at the cell edge: SINR_edge = RSRP_edge - 10*log10(I_total); Compare SINR_edge and SINR_req. If SINR_edge >= SINR_req, the broadcast signal can be received normally; otherwise, it cannot. If the broadcast signal at the current frequency can be received normally, this base station will be added to the current MBSFN according to the frequency of that day; if the broadcast signal at the current frequency cannot be received normally, a new broadcast frequency needs to be set to build multiple MBSFNs.

2. The 5G broadcast dynamic single-frequency network configuration method based on interference prediction according to claim 1, characterized in that, The method further includes: The 5G broadcast base station monitors the frequency interference level of each base station and the reception quality information of other broadcasts in real time. The broadcast control unit analyzes and monitors data, and adjusts parameters including the transmission power, signal modulation method, and time slot allocation of relevant base stations to improve the signal quality and communication capacity of the area. The broadcast control unit coordinates the synchronization between different base stations to ensure that the signals transmitted by each base station are consistent in time and frequency in a single-frequency network. The adjustment strategy for dynamic single-frequency networks based on interference measurement adjusts frequency bands and other parameters based on the expansion and contraction of the coverage area. When the broadcast range requirement expands, frequency band interference data is obtained through spectrum scanning of the base station. The broadcast control unit then incorporates eligible base stations in the vicinity or adds new base stations into the single-frequency network range to expand the coverage area. During this process, the broadcast control unit adjusts the transmission parameters of these new base stations to enable them to work in coordination with the base stations in the original single-frequency network, thereby achieving seamless coverage of the area. When 5G broadcast coverage is no longer needed in some areas, the broadcast control unit reduces the coverage of the single-frequency network in a timely manner according to changes in user distribution, and removes the unnecessary base stations from the single-frequency network.

3. The 5G broadcast dynamic single-frequency network configuration method based on interference prediction according to claim 1, characterized in that, The method further includes: When interference exists in the frequency band used by MBSFN and the broadcast terminal cannot receive the broadcast signal normally, the broadcast control unit sets up multiple MBSFNs in the broadcast coverage area to achieve coverage of the target area.

4. An electronic device, characterized in that, include: A memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the 5G broadcast dynamic single-frequency network configuration method based on interference prediction as described in any one of claims 1 to 3.

5. A computer-readable storage medium, characterized in that, include: The medium stores a computer program that is executed to implement the 5G broadcast dynamic single-frequency network configuration method based on interference prediction as described in any one of claims 1 to 3.

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