Dynamic information source selection method for multichannel repeater

Abstract

The invention provides a multi-channel repeater dynamic information source selection method, which comprises the following steps of: acquiring frequency band information supported by each channel of a multi-channel repeater by using an information source switching system to obtain a network quality index; calculating a comprehensive score of the network quality index, selecting an optimal information source according to the comprehensive score, and controlling a single-pole double-throw switch to switch a channel to a corresponding channel for signal amplification and signal forwarding; the frequency band information is collected again regularly to recalculate the newest comprehensive score, and then information source selection and channel switching are carried out according to the newest comprehensive score. The method can select the optimal information source through multiple indexes, adapts to network environment changes, ensures that the optimal information source is always used, reduces resource waste and interference, and remarkably improves communication quality and network performance.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless communications, and in particular to a dynamic information source selection method for a multi-channel repeater. Background Art

[0002] A multi-channel repeater is a relay device capable of processing multiple wireless signal channels simultaneously. It can receive signals from multiple frequency bands or sectors of a base station, amplify and process them, and then forward them to the area in need of coverage. This expands the base station signal's coverage, improves signal quality, and resolves signal blind spots and weak signal areas in the communication network. Multi-channel repeater signal source selection refers to the process of selecting the most suitable signal source as input from multiple potential signal sources within a multi-channel repeater system using specific strategies and algorithms. However, existing signal source selection methods have the following limitations:

[0003] 1) When selecting based on signal strength, strong signal strength does not necessarily mean good signal quality. There may be situations where strong interference signals are received simultaneously with useful signals, resulting in a decrease in communication quality. 2) When selecting based on the signal-to-noise ratio, relying solely on the signal-to-noise ratio to select the signal source may ignore the stability and reliability of the signal source. 3) When selecting based on network load, it is difficult to accurately obtain the load information of each base station in real time, and the network load situation is changing at any time, which may lead to untimely or inaccurate signal source selection. In addition, only considering the load factor may ignore issues such as signal coverage and quality. For example, selecting a base station with a light load but poor signal coverage as the signal source cannot effectively solve the signal coverage problem. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide a dynamic signal source selection method for a multi-channel repeater, which can select the optimal signal source through multiple indicators, adapt to changes in the network environment, ensure that the best signal source is always used, reduce resource consumption and interference, and significantly improve communication quality and network performance.

[0005] To achieve the above object, the present invention provides the following solution: a method for dynamic signal source selection of a multi-channel repeater, comprising:

[0006] The signal source switching system is used to collect frequency band information supported by each channel of the multi-channel repeater to obtain network quality indicators;

[0007] Calculating a comprehensive score of the network quality indicator, selecting an optimal signal source based on the comprehensive score, and controlling a single-pole double-throw switch to switch a channel to a corresponding channel for signal amplification and signal forwarding;

[0008] The frequency band information is periodically recollected to recalculate the latest comprehensive score, and then information source selection and channel switching are performed based on the latest comprehensive score.

[0009] Optionally, the information source switching system includes:

[0010] The donor antenna is used to interact with the signal source base station and obtain the external signal source;

[0011] A coupler, configured to extract a portion of the antenna signal from the external signal source for analysis;

[0012] A demodulation module is used to demodulate the external signal source and extract the signal-to-noise ratio parameter, signal strength parameter and bandwidth parameter of each signal frequency band to obtain a network quality indicator;

[0013] Single-pole double-throw switch, used to control signal switching and achieve multi-band selection;

[0014] A channel, used to amplify and filter the specified frequency band signal and output it to the single-pole double-throw switch;

[0015] The control module is used to coordinate information collection, decision scoring and channel switching;

[0016] Coverage antenna, used to serve users.

[0017] Optionally, the single-pole double-throw switch includes a first single-pole double-throw switch connected to the donor antenna and a second single-pole double-throw switch connected to the coverage antenna, the first single-pole double-throw switch and the second single-pole double-throw switch each include a first switch port, a second switch port, a third switch port, and a fourth switch port, and the channel includes a first channel connected to the first switch port, a second channel connected to the second switch port, a third channel connected to the third switch port, and a fourth channel connected to the fourth switch port;

[0018] The coupling port of the coupler is connected to the demodulation module, the output port of the coupler is connected to the common port of the first single-pole double-throw switch, and the control module is connected to the demodulation module and the single-pole double-throw switch.

[0019] Optionally, the signal source switching system is used to collect frequency band information supported by each channel of a multi-channel repeater to obtain a network quality indicator, including: using the control module to send the frequency band information supported by the channel to the demodulation module, using the demodulation module to traverse each frequency band information, and collecting the signal-to-noise ratio parameters, signal strength parameters and bandwidth parameters of each frequency band information to obtain the network quality indicator.

[0020] Optionally, calculating a comprehensive score of the network quality indicator, selecting an optimal signal source based on the comprehensive score, and controlling a single-pole double-throw switch to switch a channel to a corresponding channel for signal amplification and signal forwarding, including:

[0021] Calculating a comprehensive score for each signal source based on the network quality indicator and the preset frequency band priority;

[0022] Based on the comprehensive score, a signal source frequency band corresponding to the maximum value is selected as an optimal signal source frequency band. According to the optimal signal source frequency band, the control module is used to switch the working channels of the first single-pole double-throw switch and the second single-pole double-throw switch to channels corresponding to the optimal signal source frequency band.

[0023] Optionally, the calculation expression of the comprehensive score is:

[0024]

[0025] Among them, C is the comprehensive score of the source frequency band, S is the signal-to-noise ratio of the source frequency band, and W S is the signal-to-noise ratio weight, R is the reference signal received power of the source frequency band, W R is the reference signal receiving power weight, BP is the source frequency band priority, W BP is the source frequency band priority weight, BW is the bandwidth of the source frequency, W BW is the bandwidth weight.

[0026] The present invention provides a method for dynamic signal source selection of a multi-channel repeater, which has the following technical effects:

[0027] 1. Scientific decision-making: Comprehensive scoring and weight adjustment are introduced to comprehensively evaluate frequency bands, which is far superior to selecting based on a single indicator.

[0028] 2. Intelligent adaptation: Dynamic and regular assessment to adapt to changes in the environment / network status and improve service continuity.

[0029] 3. High resource utilization: Greatly reduces the probability of high-quality signal source channels being idle and inefficient bands being selected.

[0030] 4. Easy to implement in industry: The process is clear, and all signal flows, judgments, and switching have corresponding hardware foundations.

[0031] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1A schematic diagram of the method flow provided in Example 1 of the present invention;

[0034] Figure 2 A schematic diagram of the architecture of a signal source switching system provided in Example 1 of the present invention;

[0035] Figure 3 A flow chart of a method for selecting the optimal signal source band and switching channels at startup provided by Embodiment 1 of the present invention;

[0036] Figure 4 A schematic flow chart of a method for source evaluation and channel adjustment in the process provided in Example 1 of the present invention;

[0037] Figure 5 This is a schematic diagram of the source score calculation process provided by Example 2 of the present invention. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Example 1

[0041] like Figure 1 As shown, the present invention provides a method for dynamic signal source selection of a multi-channel repeater, comprising:

[0042] 1. Utilize the signal source switching system to collect frequency band information supported by each channel of the multi-channel repeater to obtain network quality indicators.

[0043] like Figure 2 As shown, the information source switching system includes:

[0044] The donor antenna is used to interact with the signal source base station and obtain the external signal source;

[0045] A coupler, configured to extract a portion of the antenna signal from the external signal source for analysis;

[0046] A demodulation module is used to demodulate the external signal source and extract the signal-to-noise ratio parameter, signal strength parameter and bandwidth parameter of each signal frequency band to obtain a network quality indicator;

[0047] Single-pole double-throw switch, used to control signal switching and achieve multi-band selection;

[0048] A channel, used to amplify and filter the specified frequency band signal and output it to the single-pole double-throw switch;

[0049] The control module is used to coordinate information collection, decision scoring and channel switching;

[0050] Coverage antenna, used to serve users internally.

[0051] The single-pole double-throw switch includes a first single-pole double-throw switch connected to the donor antenna and a second single-pole double-throw switch connected to the coverage antenna. The first single-pole double-throw switch and the second single-pole double-throw switch each include a first switching port, a second switching port, a third switching port and a fourth switching port. The channel includes a first channel connected to the first switching port, a second channel connected to the second switching port, a third channel connected to the third switching port and a fourth channel connected to the fourth switching port.

[0052] The coupling port of the coupler is connected to the demodulation module, the output port of the coupler is connected to the common port of the first single-pole double-throw switch, and the control module is connected to the demodulation module and the single-pole double-throw switch.

[0053] The control module is used to send the frequency band information supported by the channel to the demodulation module, and the demodulation module is used to traverse the frequency band information and collect the signal-to-noise ratio parameter SINR, signal strength parameter RSRP and bandwidth parameter BW of each frequency band Band information to obtain the network quality indicator.

[0054] 2. If Figure 3 As shown, the comprehensive score of the network quality index is calculated, and according to the comprehensive score, the best signal source is selected, and the single-pole double-throw switch is controlled to switch the channel to the corresponding channel for signal amplification and signal forwarding;

[0055] Calculating a comprehensive score of the network quality indicator, selecting an optimal signal source based on the comprehensive score, and controlling a single-pole double-throw switch to switch a channel to a corresponding channel for signal amplification and signal forwarding, including:

[0056] According to the network quality index and the preset frequency band priority, the comprehensive score of each signal source is calculated; the calculation expression of the comprehensive score is:

[0057]

[0058] Among them, C is the comprehensive score of the source frequency band, S is the signal-to-noise ratio of the source frequency band, and W S is the signal-to-noise ratio weight, R is the reference signal received power of the source frequency band, W R is the reference signal receiving power weight, BP is the source frequency band priority, WBP is the source frequency band priority weight, BW is the bandwidth of the source frequency, W BW is the bandwidth weight.

[0059] Based on the comprehensive score, a signal source frequency band corresponding to the maximum value is selected as an optimal signal source frequency band. According to the optimal signal source frequency band, the control module is used to switch the working channels of the first single-pole double-throw switch and the second single-pole double-throw switch to channels corresponding to the optimal signal source frequency band, and the selected optimal signal source frequency band is recorded.

[0060] 3. If Figure 4 As shown, the frequency band information is periodically recollected to recalculate the latest comprehensive score, and then the information source selection and channel switching are performed based on the latest comprehensive score.

[0061] The control module regularly sends the frequency band information supported by each channel to the demodulation module and controls the demodulation module to collect network information.

[0062] The demodulation module traverses each frequency band, collects network information such as RSRP, SINR and BW of each frequency band of the signal source, and then sends the collected network information to the control module.

[0063] The control module calculates the comprehensive score of each source Band based on the RSRP, SINR and BW of each Band and the preset Band priority.

[0064] The control module selects the signal source band with the highest score S as the best signal source band according to the comprehensive scores of the signal source bands.

[0065] The control module determines whether the selected best signal source Band is the same as the recorded best signal source Band. If so, the process proceeds to the next step; otherwise, no process is performed.

[0066] The control module switches the working channel to the channel corresponding to the best signal source Band by controlling the first single-pole double-throw switch (first SP4T switch) and the second single-pole double-throw switch (second SP4T switch) according to the best signal source Band.

[0067] Record the selected best source Band.

[0068] Example 2

[0069] The following is an example to further illustrate the dynamic signal source selection method for multi-channel repeaters:

[0070] The repeater collects the following source information:

[0071] Source Band A: SINR = 20, RSRP = -80, BandPriority = 1, BW = 20

[0072] Source Band B: SINR = 15, RSRP = -75, BandPriority = 2, BW = 20

[0073] Source Band C: SINR = 25, RSRP = -90, BandPriority = 3, BW = 20

[0074] Source Band D: SINR = 20, RSRP = -100, Band Priority = 4, BW = 20

[0075] The preset weights of each indicator are as follows:

[0076] SINR weight = 0.5

[0077] RSRP weight = 0.3

[0078] Band priority weight = 0.1

[0079] BW weight = 0.1

[0080] like Figure 5 As shown, calculate the score of each source:

[0081] Source Band A: Score = 20 × 0.5 + (-80) × 0.3 + 1 / 1 × 0.2 + 20 × 0.1 = -11.9

[0082] Source Band B: Score = 15 × 0.5 + (-75) × 0.3 + 1 / 2 × 0.2 + 20 × 0.1 = -12.95

[0083] Source Band C: Score = 25 × 0.5 + (-90) × 0.3 + 1 / 3 × 0.2 + 20 × 0.1 = -12.47

[0084] Source Band D: Score = 20 × 0.5 + (-100) × 0.3 + 1 / 4 × 0.2 + 20 × 0.1 = -17.98

[0085] Select source A with the highest score.

[0086] Channel opening and switching: Open the corresponding channel according to the frequency band information of the best signal source A.

[0087] Dynamic adjustment: re-evaluate the signal source quality at regular intervals (e.g., 10 minutes) and dynamically adjust the channel opening strategy.

[0088] The input part includes:

[0089] SINR input

[0090] RSRP input

[0091] Band priority input

[0092] BW Input

[0093] The calculation part is a calculation module, which contains the following calculation formula:

[0094]

[0095] The output part is the comprehensive score of the source.

[0096] Therefore, the present invention provides a dynamic signal source selection method for a multi-channel repeater station, which can select the optimal signal source through multiple indicators, adapt to changes in the network environment, ensure that the optimal signal source is always used, reduce resource consumption and interference, and significantly improve communication quality and network performance.

[0097] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0098] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A dynamic signal source selection method for a multi-channel repeater, characterized in that: include: The signal source switching system is used to collect frequency band information supported by each channel of the multi-channel repeater to obtain network quality indicators; Calculating a comprehensive score of the network quality indicator, selecting an optimal signal source based on the comprehensive score, and controlling a single-pole double-throw switch to switch a channel to a corresponding channel for signal amplification and signal forwarding; The frequency band information is periodically recollected to recalculate the latest comprehensive score, and then information source selection and channel switching are performed based on the latest comprehensive score.

2. A method for dynamic signal source selection of a multi-channel repeater according to claim 1, characterized in that: The information source switching system includes: The donor antenna is used to interact with the signal source base station and obtain the external signal source; A coupler, configured to extract a portion of the antenna signal from the external signal source for analysis; A demodulation module is used to demodulate the external signal source and extract the signal-to-noise ratio parameter, signal strength parameter and bandwidth parameter of each signal frequency band to obtain a network quality indicator; Single-pole double-throw switch, used to control signal switching and achieve multi-band selection; A channel, used to amplify and filter the specified frequency band signal and output it to the single-pole double-throw switch; The control module is used to coordinate information collection, decision scoring and channel switching; Coverage antenna, used to serve users.

3. A method for dynamic signal source selection of a multi-channel repeater according to claim 2, characterized in that: The single-pole double-throw switch includes a first single-pole double-throw switch connected to the donor antenna and a second single-pole double-throw switch connected to the coverage antenna, the first single-pole double-throw switch and the second single-pole double-throw switch each include a first switch port, a second switch port, a third switch port, and a fourth switch port, the channel includes a first channel connected to the first switch port, a second channel connected to the second switch port, a third channel connected to the third switch port, and a fourth channel connected to the fourth switch port; The coupling port of the coupler is connected to the demodulation module, the output port of the coupler is connected to the common port of the first single-pole double-throw switch, and the control module is connected to the demodulation module and the single-pole double-throw switch.

4. A method for dynamic signal source selection of a multi-channel repeater according to claim 3, characterized in that: The information source switching system is used to collect frequency band information supported by each channel of a multi-channel repeater to obtain a network quality indicator, including: using the control module to send the frequency band information supported by the channel to the demodulation module, using the demodulation module to traverse each frequency band information, and collecting the signal-to-noise ratio parameter, signal strength parameter and bandwidth parameter of each frequency band information to obtain the network quality indicator.

5. A method for dynamic signal source selection of a multi-channel repeater according to claim 4, characterized in that: Calculating a comprehensive score of the network quality indicator, selecting an optimal signal source based on the comprehensive score, and controlling a single-pole double-throw switch to switch a channel to a corresponding channel for signal amplification and signal forwarding, including: Calculating a comprehensive score for each signal source based on the network quality indicator and the preset frequency band priority; Based on the comprehensive score, a signal source frequency band corresponding to the maximum value is selected as an optimal signal source frequency band. According to the optimal signal source frequency band, the control module is used to switch the working channels of the first single-pole double-throw switch and the second single-pole double-throw switch to channels corresponding to the optimal signal source frequency band.

6. A method for dynamic signal source selection of a multi-channel repeater according to claim 5, characterized in that: The calculation expression of the comprehensive score is: Among them, C is the comprehensive score of the source frequency band, S is the signal-to-noise ratio of the source frequency band, and W S is the signal-to-noise ratio weight, R is the reference signal received power of the source frequency band, W R is the reference signal receiving power weight, BP is the source frequency band priority, W BP is the priority weight of the source frequency band, BW is the bandwidth of the source frequency, W BW is the bandwidth weight.

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