Multi-link parallel network search method and device, equipment and storage medium

Abstract

The invention relates to a multi-link parallel network searching method and device, equipment and a storage medium. The method comprises the steps that frequency points are configured according to the number of antennas of the terminal, and all the antennas conduct signal searching in parallel; when the effective signal is searched, accessing the terminal into the effective signal, and compensating the signal intensity measured by each antenna; when the signal intensity measured by each antenna is compensated, acquiring a continuous measurement result of each antenna, and calculating an estimated compensation amount according to the continuous measurement result; and calculating the current compensation amount of each antenna according to the previous compensation amount and the estimated compensation amount, and compensating the signal strength of each antenna according to the current compensation amount. According to the invention, the signal searching efficiency and connection efficiency can be improved, the communication quality is improved, and the stability and reliability of the terminal are improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a multi-link parallel network search method, device, equipment and storage medium. Background Art

[0002] With the rapid development of mobile communication technology, it is particularly important for terminal devices to effectively access the network in a complex and changing network environment. Terminal devices connect to appropriate network bands and frequencies through the network search function to ensure stable communication quality. However, under current technical conditions, terminal devices mainly rely on serial search to scan multiple supported bands and frequencies to find suitable network resources.

[0003] Although serial search can search all frequency bands and frequency points supported by the terminal one by one, when there are valid signal bands or frequency points with low priority in the environment, the terminal device needs to spend a lot of time searching in sequence, which will cause the best network access opportunity to be missed. The disadvantage of this method is especially obvious in scenarios with complex or frequently changing signals, which increases the time it takes for the terminal to search the network.

[0004] Due to the low efficiency of the existing serial search mechanism, the terminal device may prolong the network search time during the network search process, thereby increasing the risk of terminal service disconnection. Long-term service interruption not only affects the user experience, but may also cause more serious consequences in some application scenarios. Summary of the invention

[0005] Based on this, it is necessary to provide a multi-link parallel network search method, device, equipment and storage medium that can optimize the frequency band and frequency point search process in response to the above technical problems.

[0006] A multi-link parallel network search method, applicable to a terminal supporting multiple frequency bands, comprising: The frequency points are configured according to the number of antennas provided by the terminal, and each antenna searches for signals in parallel; when a valid signal is searched, the terminal is connected to the valid signal, and the signal strength measured by each antenna is compensated; When compensating the signal strength measured by each antenna, obtaining continuous measurement results of each antenna, and calculating an estimated compensation amount according to the continuous measurement results; The current compensation amount of each antenna is calculated according to the previous compensation amount and the estimated compensation amount, and the signal strength of each antenna is compensated according to the current compensation amount.

[0007] A multi-link parallel network search device, suitable for a terminal supporting multiple frequency bands, comprising: A signal search module, configured to respectively configure frequency points according to the number of antennas provided by the terminal, and each antenna performs signal search in parallel; when a valid signal is searched, the terminal is connected to the valid signal, and the signal strength measured by each antenna is compensated; An estimated compensation amount calculation module is used to obtain continuous measurement results of each antenna when compensating the signal strength measured by each antenna, and calculate the estimated compensation amount according to the continuous measurement results; The signal strength compensation module is used to calculate the current compensation amount of each antenna according to the previous compensation amount and the estimated compensation amount, and compensate the signal strength of each antenna according to the current compensation amount.

[0008] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the multi-link parallel network search method when executing the computer program.

[0009] A computer-readable storage medium stores a computer program, which implements the steps of the multi-link parallel network search method when executed by a processor.

[0010] The above-mentioned multi-link parallel network search method, device, equipment and storage medium, the method includes: configuring frequency points according to the number of antennas equipped by the terminal, and each antenna performs signal search in parallel; when a valid signal is searched, the terminal is connected to the valid signal, and the signal strength measured by each antenna is compensated; when compensating the signal strength measured by each antenna, the continuous measurement results of each antenna are obtained, and the estimated compensation amount is calculated according to the continuous measurement results; the current compensation amount of each antenna is calculated according to the previous compensation amount and the estimated compensation amount, and the signal strength of each antenna is compensated according to the current compensation amount.

[0011] The present invention optimizes the search process of frequency bands and frequency points by allocating independent frequency points to each antenna and performing signal search in parallel, shortens the network search time, and improves the signal search efficiency and connection efficiency. For the effective signal accessed, the effective signal is dynamically compensated according to the current compensation amount calculated, which can improve the communication quality, ensure the reception and quality optimization of the signal, enable the terminal system to better adapt to signal fluctuations and interference, and improve the stability and reliability of the terminal equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0013] Figure 1 A schematic diagram of a flow chart of a multi-link parallel network search method in one embodiment; Figure 2 A schematic diagram of the architecture of a multi-link parallel network search method in one embodiment; Figure 3 A schematic diagram of the positions of four antenna structures of a terminal in one embodiment; Figure 4 It is a structural block diagram of a multi-link parallel network search device in one embodiment; Figure 5 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment.

[0014] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0016] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0017] It can be understood that the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0018] The following will describe the implementation of the present invention in detail with reference to the accompanying drawings in the embodiment diagram of the present invention.

[0019] Example 1 This embodiment discloses a multi-link parallel network search method, which optimizes the search process of frequency bands and frequency points by assigning independent frequency points to each antenna and performing signal search in parallel, shortens the network search time, and improves signal search efficiency and connection efficiency. For the effective signal of access, the effective signal is dynamically compensated according to the current compensation amount calculated, which can improve the communication quality, ensure the reception and quality optimization of the signal, enable the terminal system to better adapt to signal fluctuations and interference, and improve the stability and reliability of the terminal equipment.

[0020] like Figure 1 As shown, the multi-link parallel network search method provided in this embodiment includes the following steps: Step 201, configure frequency points according to the number of antennas provided by the terminal, and each antenna searches for signals in parallel; when a valid signal is found, connect the terminal to the valid signal, and compensate for the signal strength measured by each antenna.

[0021] Specifically, when the frequencies are configured respectively according to the number of antennas provided by the terminal, a frequency may be configured for each antenna, and each antenna performs a parallel network search; or the same frequency may be configured for antennas in pairs, and each pair of antennas performs a parallel network search.

[0022] It can be understood that the terminal network search mainly relies on the terminal's receiving link, not the terminal's transmitting link. The transmitting link is only needed when the terminal searches for a cell signal that meets the access conditions and initiates the access process. Due to the high integration of the chip, the current general terminal equipment can have 6 or more receiving links, and at least 2 receiving links are supported. In the actual communication process, the baseband needs to rely on the correlation of multiple signals to demodulate the signal to improve the signal-to-noise ratio, so the multiple signals are directly connected to the baseband for processing, and the RF ends between each channel are independent of each other. However, the traditional serial search is to search for a frequency point together for the links of each antenna, which will result in a lot of time spent on searching the network, especially when the frequency band or frequency point of the effective signal is at a low priority, which will result in missing the best network access opportunity.

[0023] The present invention makes full use of all antenna links of the terminal to perform parallel network search, and the search speed is doubled, which can significantly improve the detection speed of effective signals and shorten the connection time. Especially when the frequency band or frequency point of the effective signal in the current environment is at a low priority, it can effectively speed up the recovery speed of the terminal network. For example, if the terminal has four antennas, the architecture of its parallel network search is shown as follows: Figure 2 As shown, the link corresponding to each antenna is configured with a frequency point for signal search, so that four antennas can search the network at the same time, and the search speed is increased by four times.

[0024] In addition, different antennas are configured with different frequencies to cover a wider frequency range, increase the possibility of receiving effective signals, and can flexibly respond to signal changes with strong adaptability.

[0025] Step 202, when compensating the signal strength measured by each antenna, obtain the continuous measurement results of each antenna, and calculate the estimated compensation amount according to the continuous measurement results.

[0026] It can be understood that continuous measurement results can capture the fluctuations of the signal at different time points. Calculating the estimated compensation amount based on the continuous measurement results can reduce instantaneous errors, eliminate the influence of external interference, and improve calculation accuracy. In addition, continuous measurement can also understand the signal changes in the environment in real time, so as to dynamically adjust the estimated compensation amount to ensure the stability of signal strength. Moreover, since multiple antennas may produce different measurement results for the signal at the same time, continuous measurement can help better evaluate the performance of each antenna, and then accurately compensate each antenna to make the signal processing more balanced.

[0027] Step 203, calculating the current compensation amount of each antenna according to the previous compensation amount and the estimated compensation amount, and compensating the signal strength of each antenna according to the current compensation amount.

[0028] It can be understood that by combining the previous compensation amount with the estimated compensation amount to calculate the current compensation amount of each antenna, signal compensation can be smoothly transitioned, instantaneous fluctuations in signal strength can be reduced, and continuity and stability of signal supplementation can be ensured.

[0029] Furthermore, using the last compensation amount to calculate the current compensation amount can avoid unreasonable estimation bias, reduce estimation errors, and better cope with gradual changes in the environment, such as equipment aging or antenna performance changes.

[0030] The current compensation amount of each antenna is calculated based on the previous compensation amount and the estimated compensation amount. The compensation amount of each antenna can be calculated dynamically. As the environment changes, the current compensation amount can be gradually adjusted to adapt to new conditions without relying on one-time drastic changes, thereby enhancing the adaptability to complex environments and improving signal quality.

[0031] The present invention also includes: setting a calibration period, within the calibration period, recording the measurement value of each antenna for the same signal according to the frequency point where the terminal currently resides; based on the comparison of the measurement value and the historical calibration data, self-calibrating the performance at the frequency point configured by each antenna. The self-calibration of each antenna is performed when the terminal is not in operation.

[0032] It is understandable that, considering the imbalance of the antenna design, certain compensation is required for the measured signal to avoid a significant attenuation of the signal quality when the antenna with weaker performance measures a better signal, so as to ensure that all antennas can effectively receive the signal. Usually, when the terminal device leaves the factory, the manufacturer will calibrate the antenna of each device. These factory calibration data or previous self-calibration data can be used as historical calibration data and used as a reference for antenna performance compensation to help the system adjust in actual use. For handheld mobile terminal devices, in the holding scenario, the upper and lower antennas, or the left and right antennas of the terminal device will be blocked by the human body, resulting in a large attenuation of the antenna's received signal energy, so additional compensation is required. For such scenarios, it is best to use paired antennas for measurement to reduce the influence of the human body and terminal posture. See Figure 3 For a 4-antenna terminal, the upper left and lower right antennas, as well as the upper right and lower left antennas can be used in groups for measurement to avoid the situation where the antennas are blocked at the same time as much as possible.

[0033] In addition, since the performance and structure of each component of the terminal device are affected by factors such as aging and impact during actual use, the actual performance of each antenna will be different from the calibration result of the terminal device before leaving the factory. As the use time increases, the difference will become more obvious. Therefore, the terminal needs to periodically self-calibrate the performance of each antenna relative to the supported frequency points during use. Considering the stability of the signal, antenna self-calibration is performed only when the terminal is in a non-operating state, such as a long-term static state and without external obstructions. When the terminal detects that the terminal is currently in a non-operating state based on sensors such as gyroscopes and accelerometers, it records the measurement values ​​of different antennas for the same signal according to the frequency point where the terminal currently resides. Then, based on the comparison of the measurement value and the historical calibration data, the performance of each antenna at the configured frequency point is automatically adjusted to perform self-calibration.

[0034] In the specific implementation process of step 201, different carrier signals are provided in the down-conversion modules of the radio frequency links corresponding to the antennas, so as to realize the configuration of different frequency points of the antennas.

[0035] See also Figure 2 As shown in the figure, assuming that the terminal has four-antenna receiving capability, the signal is received by four completely independent RF links. Under the parallel network search architecture, each RF link includes a power amplifier module, a down-conversion module, and an analog / digital conversion module. By providing different carrier signals in the down-conversion modules of each RF link, the configuration of different frequencies for each antenna can be achieved.

[0036] Each RF link has a different carrier signal. The down-conversion module can convert RF signals of different frequencies into baseband signals, thereby flexibly supporting different frequency bands, making full use of available spectrum resources and improving the capacity of the communication system.

[0037] In the specific implementation process of step 202, continuous measurement results of each antenna are obtained, and an estimated compensation amount is calculated based on the continuous measurement results, including: setting a measurement period, obtaining continuous measurement results of each antenna within the measurement period, and averaging the continuous measurement results to obtain an estimated compensation amount for each antenna.

[0038] In the specific implementation process of step 203, the current compensation amount of each antenna is calculated according to the previous compensation amount and the estimated compensation amount, and the expression is: ; In the formula, Indicates The current compensation amount of the root antenna; Indicates The last compensation amount of the root antenna; Indicates Estimated compensation for each antenna; Represents the forgetting coefficient.

[0039] The signal strength of each antenna is compensated according to the current compensation amount. The expression is: ; In the formula, Indicates Signal strength after compensation of the antennas; Indicates The actual signal strength measured by the antenna.

[0040] It can be understood that the compensation amount is usually used to adjust the signal strength to compensate for the difference in the antenna receiving signal. In this embodiment, by setting a measurement period, the continuous measurement results of all antennas are recorded during the measurement period. In order to avoid the influence of external interference and the influence of instantaneous measurement errors, the measurement results are averaged to obtain the estimated compensation amount for each antenna. Taking the four-antenna system as an example, the actual measured signal strength is , , , The continuous measurement results of each antenna are averaged to obtain the estimated compensation amount for each antenna: , , , Assuming that after searching for a valid signal, the signal strength measured by antenna 1 is the best, the estimated compensation value of antenna 1 is , indicating that no compensation is required. The other antennas are calculated based on the previous compensation amount and the estimated compensation amount to obtain the current compensation amount of each antenna, and then the actual measured signal strength of each antenna is compensated and optimized based on the current compensation amount of each antenna to optimize the communication performance of the terminal and improve the communication quality.

[0041] In addition, the forgetting coefficient is taken into account when calculating the current compensation amount. By adjusting the weights of the previous compensation amount and the estimated compensation amount through the forgetting coefficient, the influence of historical data and current data can be balanced, the adaptability of the system can be enhanced, the influence of noise and sudden interference can be reduced, and the calculation stability can be improved.

[0042] Although this embodiment Figure 1 The steps in the process are shown in sequence as indicated by the arrows, but the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of the steps, and the steps can be executed in other orders. Figure 1 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0043] Example 2 Based on the multi-link parallel network search method in Example 1, this embodiment discloses a multi-link parallel network search device, such as Figure 4 As shown, the multi-link parallel network search device includes: a signal search module 401, an estimated compensation amount calculation module 402 and a signal strength compensation module 403, wherein: The signal search module 401 is used to configure frequency points according to the number of antennas provided by the terminal, and each antenna performs signal search in parallel; when a valid signal is searched, the terminal is connected to the valid signal, and the signal strength measured by each antenna is compensated.

[0044] The estimated compensation amount calculation module 402 is used to obtain continuous measurement results of each antenna when compensating the signal strength measured by each antenna, and calculate the estimated compensation amount according to the continuous measurement results.

[0045] The signal strength compensation module 403 is used to calculate the current compensation amount of each antenna according to the previous compensation amount and the estimated compensation amount, and compensate the signal strength of each antenna according to the current compensation amount.

[0046] In this embodiment, the specific working process and working principle of the signal search module 401, the estimated compensation amount calculation module 402 and the signal strength compensation module 403 are the same as those in the method of Embodiment 1, so they are not described in detail in this embodiment. Each unit module can be implemented in whole or in part by software, hardware and a combination thereof, and each unit module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above unit modules.

[0047] Example 3 like Figure 5 The terminal device disclosed in this embodiment includes a transmitter, a receiver, a memory, and a processor. The transmitter is used to send instructions and data, the receiver is used to receive instructions and data, the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions stored in the memory to implement the method in the above-mentioned embodiment 1.

[0048] It should be noted that the above memory can be independent or integrated with the processor. When the memory is independently provided, the terminal device further includes a bus for connecting the memory and the processor.

[0049] Example 4 This embodiment discloses a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the method in the above-mentioned embodiment 1 is implemented.

[0050] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A multi-link parallel network search method, characterized in that: Applicable to a terminal supporting multiple frequency bands, the method comprises: The frequency points are configured according to the number of antennas provided by the terminal, and each antenna searches for signals in parallel; when a valid signal is searched, the terminal is connected to the valid signal, and the signal strength measured by each antenna is compensated; When compensating the signal strength measured by each antenna, obtaining continuous measurement results of each antenna, and calculating an estimated compensation amount according to the continuous measurement results; The current compensation amount of each antenna is calculated according to the previous compensation amount and the estimated compensation amount, and the signal strength of each antenna is compensated according to the current compensation amount.

2. The multi-link parallel network search method according to claim 1, characterized in that: The frequency points are configured respectively according to the number of antennas provided by the terminal, including: The down-conversion module of the RF link corresponding to each antenna provides different carrier signals to realize the configuration of different frequency points of each antenna.

3. The multi-link parallel network search method according to claim 1, characterized in that: Also includes: Setting a calibration period, during which, according to the frequency point at which the terminal currently resides, the measurement value of each antenna for the same signal is recorded; Based on the comparison between the measured values ​​and the historical calibration data, the performance at the frequency point configured for each antenna is self-calibrated.

4. The multi-link parallel network search method according to claim 3, characterized in that: include: The self-calibration of each antenna is performed when the terminal is not in operation.

5. The multi-link parallel network search method according to any one of claims 1 to 4, characterized in that: Obtaining continuous measurement results of each antenna, and calculating an estimated compensation amount according to the continuous measurement results, including: A measurement period is set, continuous measurement results of each antenna are obtained within the measurement period, and the continuous measurement results are averaged to obtain an estimated compensation amount of each antenna.

6. The multi-link parallel network search method according to any one of claims 1 to 5, characterized in that: The current compensation amount of each antenna is calculated according to the previous compensation amount and the estimated compensation amount, and the expression is: ； In the formula, Indicates The current compensation amount of the root antenna; Indicates The last compensation amount of the root antenna; Indicates Estimated compensation for each antenna; Represents the forgetting coefficient.

7. The multi-link parallel network search method according to claim 6, characterized in that: The signal strength of each antenna is compensated according to the current compensation amount. The expression is: ； In the formula, Indicates Signal strength after compensation of the antennas; Indicates The actual signal strength measured by the antenna.

8. A multi-link parallel network search device, characterized in that: Applicable to a terminal supporting multiple frequency bands, the device comprises: A signal search module, configured to respectively configure frequency points according to the number of antennas provided by the terminal, and each antenna performs signal search in parallel; when a valid signal is searched, the terminal is connected to the valid signal, and the signal strength measured by each antenna is compensated; An estimated compensation amount calculation module is used to obtain continuous measurement results of each antenna when compensating the signal strength measured by each antenna, and calculate the estimated compensation amount according to the continuous measurement results; The signal strength compensation module is used to calculate the current compensation amount of each antenna according to the previous compensation amount and the estimated compensation amount, and compensate the signal strength of each antenna according to the current compensation amount.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the multi-link parallel network search method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the multi-link parallel network search method according to any one of claims 1 to 7 are implemented.

Images