CN115580908A

CN115580908A - Cell measurement method, device, equipment and computer readable storage medium

Info

Publication number: CN115580908A
Application number: CN202211075110.5A
Authority: CN
Inventors: 齐岽清
Original assignee: Zeku Technology Beijing Corp Ltd
Current assignee: Zeku Technology Beijing Corp Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-01-06

Abstract

The embodiment of the application discloses a cell measurement method, a cell measurement device, cell measurement equipment and a computer readable storage medium. The method comprises the following steps: acquiring intensity values of a plurality of beams corresponding to each cell; determining a plurality of target beams greater than an absolute beam threshold value among the plurality of beams according to the intensity values of the plurality of beams; the absolute beam threshold value represents a lower limit value of the strength value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, the maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value represents a relative value between the beam and the intensity value of the beam; and calculating the measurement result of each cell according to the at least one dominant beam.

Description

Cell measurement method, device, equipment and computer readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a cell measurement method, an apparatus, a device, and a computer-readable storage medium.

Background

After a terminal device camps on a New Radio (NR) network, it is necessary to continuously measure the cell quality of a cell where the terminal device currently camps on and a neighboring cell based on the mobility requirement of the terminal device. Whereas in a 5G NR network the cell quality is obtained from the combination of one or more of the strongest beams.

In the prior art, based on the rule set by the current network, in a multi-beam cell environment, if the network configures an absolute beam threshold (abs Thresh SS-Blocks consistency) and a beam number N (nrof SS-Blocks To Average), and the maximum intensity value (the best beam quality) of a multi-beam is greater than the absolute beam threshold, a linear domain Average is performed on beams (the number of beams does not exceed N) whose intensity values are closer To each other, so that the results of a plurality of beams (at most N) are combined To obtain the cell quality.

However, the quality of the cell is calculated by only performing the calculation on the maximum first N beams greater than the absolute beam threshold value, which reduces the accuracy of the cell measurement result.

Disclosure of Invention

The embodiment of the application provides a cell measurement method, a cell measurement device, cell measurement equipment and a computer readable storage medium, and improves the accuracy of a cell measurement result.

The technical scheme of the embodiment of the application is realized as follows:

in a first aspect, an embodiment of the present application provides a cell measurement method, where the method includes: acquiring intensity values of a plurality of beams corresponding to each cell; determining a plurality of target beams among the plurality of beams that are greater than an absolute beam threshold value according to the strength values of the plurality of beams; the absolute beam threshold value represents a lower limit value of the intensity value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value characterizes a relative value between the beam and the intensity value of the beam; and calculating to obtain the measurement result of each cell according to the at least one dominant beam.

In a second aspect, an embodiment of the present application provides a cell measurement apparatus, including: the acquisition module is used for acquiring the strength values of a plurality of beams corresponding to each cell; a determining module, configured to determine, according to the strength values of the multiple beams, multiple target beams that are greater than an absolute beam threshold value among the multiple beams; the absolute beam threshold value represents a lower limit value of the intensity value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value represents a relative value between the intensity values of the beams; and the measuring module is used for calculating and obtaining the measuring result of each cell according to the at least one dominant wave beam.

In a third aspect, an embodiment of the present application provides a cell measurement device, where the device includes: a memory for storing an executable computer program; a processor for implementing the above cell measurement method when executing the executable computer program stored in the memory.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the cell measurement method described above.

The embodiment of the application provides a cell measurement method, a cell measurement device, cell measurement equipment and a computer readable storage medium. According to the scheme provided by the embodiment of the application, the strength values of a plurality of beams corresponding to each cell are obtained; determining a plurality of target beams greater than an absolute beam threshold value among the plurality of beams according to the strength values of the plurality of beams; the absolute beam threshold value represents a lower limit value of the strength value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value represents a relative value between the beam and the intensity value of the beam; the strength value of the target beam screened for the first time is greater than the absolute beam threshold value and corresponds to a basic condition (greater than the absolute beam threshold value) set by the relevant network equipment; by setting the relative beam threshold value and performing secondary screening, the short plate beam which is far different from the maximum intensity value in the intensity values of the plurality of beams is filtered, so that the accuracy and the reliability of the dominant beam are improved. And according to the at least one dominant beam, the measurement result of each cell is obtained through calculation, so that the accuracy of the cell measurement result is improved.

Drawings

Fig. 1 is an exemplary diagram of a communication system provided in an embodiment of the present application;

fig. 2 is an exemplary schematic diagram of an application scenario of a cell measurement method according to an embodiment of the present application;

fig. 3 is a flowchart illustrating optional steps of a cell measurement method according to an embodiment of the present application;

fig. 4 is an exemplary diagram of a beam measurement result provided in an embodiment of the present application;

fig. 5 is a flowchart illustrating alternative steps of another cell measurement method according to an embodiment of the present application;

fig. 6 is a flowchart illustrating optional steps of a method for calculating cell quality according to an embodiment of the present disclosure;

fig. 7 is an exemplary diagram of another beam measurement result provided in the embodiment of the present application;

fig. 8 is a flowchart illustrating optional steps of a method for calculating a cell quality based on a moving speed according to an embodiment of the present application;

fig. 9 is a flowchart illustrating alternative steps of another cell measurement method according to an embodiment of the present application;

fig. 10 is an alternative structural schematic diagram of a cell measurement apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a cell measurement device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be understood that some of the embodiments described herein are only for explaining the technical solutions of the present application, and are not intended to limit the technical scope of the present application.

In order to better understand the cell measurement method provided in the embodiment of the present application, before describing the technical solution of the embodiment of the present application, an application background and related technologies are described.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE), a LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a future 5G System.

As shown in fig. 1, fig. 1 illustrates a wireless communication system 1000 to which an embodiment of the present application is applied. The wireless communication system 1000 may include a network device 11. The network device 11 may be a device that communicates with the terminal device. Network device 11 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Optionally, the Network device 11 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network-side device in a future 5G Network, or a Network device in a future evolved Public Land Mobile Network (PLMN), or the like.

The wireless communication system 1000 further comprises at least one terminal device 12 located within the coverage area of the network device 11. Terminal equipment 12 may be mobile or stationary. Alternatively, terminal Equipment 12 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc.

Exemplarily, the 5G system or network may also be referred to as a New Radio (NR) system or network. A network device may have multiple cells (e.g., one sector may be one cell), each cell having a cell identifier or preamble sequence. There may be one or more antenna arrays per cell in the network device. The network device may use an antenna or antenna array for beamforming. The antenna array may form beams with different widths, e.g., wide beams, narrow beams, etc.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the wireless communication system 1000 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application. That is to say, a cell may cover multiple terminal devices, where a cell includes multiple beams, and a terminal device may correspond to multiple beams of a cell, and a terminal device is located in a coverage area of multiple cells, which is not limited in this embodiment of the present invention.

For example, the wireless communication system 1000 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

In the related art, the criteria for obtaining the cell quality based on the multiple beam measurements are specified as follows: in a multi-beam cell environment, if a network device configures an Absolute threshold (Absolute threshold for Synchronization Signal Block convergence, abs Thresh-Blocks convergence) below which a Synchronization Signal Block (SSB) is combined, and an Absolute beam threshold (Number of Synchronization Signal Block To Average, nrod SS-Blocks To Average) below which a Number of beams greater than the Absolute beam threshold is represented by a Number of beams N below which the nrod SS-Blocks To Average and the best of a plurality of beam measurement values is greater than the Absolute beam threshold, a beam greater than the Absolute beam threshold (the Number of beams does not exceed the nrod-Blocks To Average) is linearly beam-averaged, thereby combining a plurality of combined beam results as a cell quality result (i.e., a cell quality measurement result). Otherwise, the "strongest beam measurement" is taken as the measurement for the cell. Then, based on the current standard and the configuration parameters of the actual network, there may be an inaccurate scenario of cell measurement results when processing multiple beam combinations to calculate cell quality.

Here, an application scenario is listed to describe a cell measurement result in the related art, as shown in fig. 2, fig. 2 is an exemplary schematic diagram of an application scenario of a cell measurement method provided in an embodiment of the present application. The terminal device is leaving the coverage of an original serving cell (original serving cell), the strength value of a beam 0 corresponding to the original serving cell is-90 dBm, and two cells, cell1 (cell 1) and cell2 (cell 2), can be detected in a target area. The terminal device can detect beam1 (beam 1) and beam2 (beam 2) on cell1, and can detect one beam3 (beam 3) on cell 2. Wherein the intensity value of beam1 is-105 dBm, the intensity value of beam2 is-80 dBm, and the intensity value of beam3 is-82 dBm. Of these, beam2 of cell1 covers the best location of the terminal equipment, and beam2 of cell1 where the terminal equipment camps on will get the best quality of service. However, in the related art, since the cell1 still has the beam1 which is not directed to the terminal device, the terminal device can detect the weak signal of the beam 1. If beam1 also exceeds the absolute beam threshold (abs Thresh SS-Blocks correlation), it is also used for averaging the calculated cell quality. The short plate beam1 shares the same weight as the dominant beam2 when calculating the average quality. So that the overall quality of cell1 is pulled down by the short plate beam1 by the average. In cell2, beam3 does not cover the location of the terminal device as well as beam2, but since the terminal device can only detect this one beam2, the overall quality of cell2 is considered to be better than that of cell 1. In the above scenario, the terminal device cannot select the best cell in the current environment and cannot obtain service on the optimal beam.

A common configuration of a real network in the related art is as follows: beams with Reference Signal Received Power (RSRP) greater than-110 dBm can be used to calculate cell quality, up to the first 3 strong beams. Namely:

abs Thresh SS-Blocks Consolidation.Threshold RSRP(-110dBm)，

nrof SS-Blocks To Average(3)。

according to the above common configuration of the real network, with reference to fig. 2, it is determined that cell measurement results (cell results) of the cell1 and the cell2 are shown in table 1, where table 1 is an exemplary cell measurement result provided in this embodiment of the present application.

TABLE 1

The beam quality in table 1 above may be understood as a beam measurement or an intensity value of the beam. According to the scheme provided by the related art, the signal quality of cell1 is derived from the linear average of beam1 (-105 dBm) and beam2 (-80 dBm), and the calculation result is-83 dBm. Although the strongest beam of cell2 is not as strong as that of cell1 and the number of beams satisfying abs Thresh SS-Blocks association is not as large as that of cell1, the intensity of cell2 is the intensity of beam3 (-82 dBm) because there is no short-plate beam. The calculated quality of cell2 will be higher than that of cell1 instead. And the terminal device and the network device are based on the cell quality when performing the evaluation of the mobility management. Therefore, in the presence of the short plate beam, the terminal device or the network device cannot make a suitable mobility determination based on the cell quality, and cannot reselect or handover to the strongest cell, thereby reducing the communication quality.

An embodiment of the present application provides a cell measurement method, as shown in fig. 3, where fig. 3 is a flowchart illustrating steps of the cell measurement method provided in the embodiment of the present application, and the cell measurement method includes the following steps:

s101, obtaining the intensity values of a plurality of beams corresponding to each cell.

In the embodiment of the present application, the terminal device 12 and the network device 11 communicate with each other, and the cell measurement method may be performed by the terminal device 12. The terminal device 12 is a communication device that communicates with the network device 11 (e.g., base station, cell) over a wireless interface. Terminal device 12 may receive multiple beams from the same cell during a stop or move, and may determine the strength value of the cell according to the strength values of the multiple beams.

S102, determining a plurality of target beams which are larger than an absolute beam threshold value in the plurality of beams according to the strength values of the plurality of beams; the absolute beam threshold value represents a lower limit value of the intensity value of the screening beam.

In the embodiment of the application, the beams with the intensity values larger than the absolute beam threshold value are used as target beams, and a plurality of target beams are obtained after the first beam screening. The absolute beam threshold is a lower limit value of the strength value of the screening beam, and as long as the beam is greater than the absolute beam threshold, the beam is possible to be used as the beam for calculating the strength value of the cell.

In the embodiment of the present application, when a dominant beam is selected from a plurality of beams, the plurality of beams are first selected, and a beam with a strength value greater than an absolute beam threshold value among the plurality of beams is used as a target beam. The target wave beam screened for the first time meets the basic selection condition, so that secondary screening is performed according to the target wave beam in the following process, the dominant wave beam is obtained, and the stability of the dominant wave beam is improved. The screening process corresponds to selecting the wave beam which is larger than the absolute wave beam threshold value from a plurality of wave beams in the correlation technique, can be better compatible with the correlation technique, and improves the universality of the cell measuring method.

S103, determining at least one dominant beam from the multiple target beams according to the intensity values of the multiple target beams, the maximum intensity value of the intensity values of the multiple beams and a relative beam threshold value; the relative beam threshold value characterizes a relative value between the beam and the intensity value of the beam.

In the embodiment of the present application, after the multiple target beams are screened, a second screening is required. By setting the relative beam threshold value, the short plate beam which is far different from the maximum intensity value in the intensity values of the plurality of beams is filtered, so that the accuracy and the reliability of the dominant beam are improved.

In the embodiment of the present application, when there are multiple beams that satisfy the beam selection threshold (i.e., there is a strength value greater than the absolute beam threshold value among the strength values of the multiple beams), the multiple target beams are secondarily screened instead of being directly subjected to linear domain averaging. Before the second screening, the strongest Beam measurement value (i.e. the largest intensity value among the intensity values of the multiple beams) of the cell in the current measurement result is recorded as Quantity0, and a relative Beam threshold value (Range To Best Beam) is determined. And in the strength values of the target beams, the beam with the strength value larger than the difference between the maximum strength value and the relative threshold value is used as the dominant beam, so that the second screening of the target beams is realized.

In the embodiment of the present application, the relative threshold may be a constant, for example, 10dB, and the relative beam threshold is used to filter out the short-board beam that is too far away from the strongest beam Quantity0 in the current cell; the relative threshold value may be a variable, as will be described below.

In some embodiments, the cell measurement method further comprises a relative threshold determination method. And determining a relative beam threshold value according to the distribution condition and the maximum intensity value of the intensity values of the plurality of beams.

In the embodiment of the present application, after the maximum intensity value is obtained, the relative beam threshold may be determined according to the distribution of the intensity values of the multiple beams around the maximum intensity value, instead of directly defining the same relative beam threshold in advance for each cell, which improves the flexibility and diversity of the beam screening by setting the relative beam threshold according to the actual situation.

In the embodiment of the present application, since the number of used dominant beams is limited, for example, 3 beams, when performing cell quality calculation by using the dominant beams after two times of screening, the number of lower beams can be appropriately controlled by dynamically adjusting the relative beam threshold value when performing the second screening.

For example, when the intensity values of the plurality of beams are distributed more intensively around the maximum intensity value, one or more beams are selected, and the corresponding results thereof do not change much when the average value thereof is taken as the intensity value of the cell, and a relatively small relative threshold value may be set so as to select a beam closer to the maximum intensity value. When the intensity values of the multiple beams are distributed more dispersedly and are far from the maximum intensity value, one or more beams are screened, and when the average value of the intensity values is taken as the intensity value of the cell, the corresponding result change is larger, and a relatively larger relative threshold value can be set so as to select more beams.

In the embodiment of the application, the flexibility and diversity of the screened beams are improved in a mode of combining the dynamic adjustment of the distribution condition of the intensity values of the plurality of beams and relative to the threshold value of the beams.

In the embodiment of the application, the selected dominant beam not only meets the beam selection threshold in the related technology, namely is larger than the absolute beam threshold value, but also has a difference with the strongest beam Quantity0 in the current cell within a certain range, namely the distance between the selected dominant beam Quantity0 and the strongest beam Quantity0 is smaller than the relative beam threshold value, the selected dominant beam can reflect the overall quality of the cell, the accuracy of the dominant beam is improved, the measurement result of the cell is calculated according to the dominant beam in the follow-up process, and the accuracy of the cell measurement result is improved.

And S104, calculating to obtain a measurement result of each cell according to the at least one dominant beam.

In this embodiment, after obtaining at least one dominant beam through two screening, the measurement result of the cell may be calculated according to the strength value of the at least one dominant beam.

Illustratively, an average value of the intensity values of the at least one dominant beam is taken as the intensity value of the cell (i.e., the measurement result of the cell); alternatively, among the at least one dominant beam, a preset number of dominant beams are selected according to a preset rule, and an average value of intensity values of the preset number of dominant beams is used as an intensity value of the cell (i.e., a measurement result of the cell).

According to the scheme provided by the embodiment of the application, the strength values of a plurality of beams corresponding to each cell are obtained; determining a plurality of target beams greater than an absolute beam threshold value among the plurality of beams according to the strength values of the plurality of beams; the absolute beam threshold value represents a lower limit value of the intensity value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value represents a relative value between the beam and the intensity value of the beam; the strength value of the target beam screened for the first time is greater than the absolute beam threshold value and corresponds to a basic condition (greater than the absolute beam threshold value) set by the relevant network equipment; by setting the relative beam threshold value and performing secondary screening, the short plate beam which is far different from the maximum intensity value in the intensity values of the plurality of beams is filtered, so that the accuracy and the reliability of the dominant beam are improved. And according to the at least one dominant beam, the measurement result of each cell is obtained through calculation, so that the accuracy of the cell measurement result is improved.

According to the scheme provided by the related art, there may be a case where the cell quality is jittered due to an absolute threshold, which is described below with reference to fig. 4. Fig. 4 is an exemplary schematic diagram of a beam measurement result provided in an embodiment of the present application, in which an abscissa of the beam measurement result in fig. 4 represents time, an ordinate represents the beam measurement result (which may also be an intensity value of a beam), and an absolute beam threshold value is-110 dBm. The terminal device can detect the two beams (beam 1 and beam 2) of cell 1. Wherein the wave beam1 is stronger and fluctuates around-100 dBm; beam2 is weak and fluctuates above and below the absolute beam threshold (abs Thresh SS-Blocks correlation). Due to the solutions provided by the related art, the threshold value for selecting a beam for calculating the cell quality is a point (e.g., -110 dBm), so that the terminal device may perform smooth filtering on the measurement result of the beam in the physical layer, and the filtering result may inevitably have small fluctuation, and a comparison with respect to such an absolute beam threshold reference point may still occur when the ping-pong is satisfied. This results in beam2 sometimes being used to calculate cell quality and sometimes not. Also shown in fig. 4 is whether beam2 is included in the calculation of the cell quality, where "Yes" indicates that beam2 is used to calculate the cell quality and "No" indicates that beam2 is not used to calculate the cell quality.

According to the above-mentioned common configuration of the real network, a cell measurement result (cell result) of the cell1 is described with reference to fig. 4, as shown in table 2, table 2 is another exemplary cell measurement result provided in the embodiment of the present application. Table 2 shows two measurements for cell1 at different times.

TABLE 2

The beam quality in table 2 above can be understood as a beam measurement or a beam intensity value. As can be seen from the calculation in table 2, when the measurement result of the beam2 is raised from-110 dBm to-109 dBm, since the requirement of being greater than the absolute beam threshold (abs Thresh SS-Blocks consistency) is satisfied, even if the beam1 is stabilized at-100 dBm, the overall result of the cell is reduced by 2.49dB, which is not in line with the actual change trend of the cell environment. Further, if beam2 fluctuates above and below about the-110 dBm threshold, there may be instances where the cell calculation results fluctuate back and forth frequently with beam 2. The terminal device or the network device cannot make an appropriate mobility judgment based on the cell quality, thereby reducing the communication quality.

Based on the content described in fig. 4 and table 2, an embodiment of the present application further provides a cell measurement method, as shown in fig. 5, fig. 5 is a flowchart of steps of another cell measurement method provided in the embodiment of the present application, where the cell measurement method includes the following steps:

s201, obtaining the intensity values of a plurality of beams corresponding to each cell.

S202, according to the intensity values of the multiple beams, multiple target beams which are larger than the difference between the absolute beam threshold value and the hysteresis factor are determined in the multiple beams.

In the embodiment of the present application, when a dominant beam is selected from a plurality of beams, the plurality of beams are first selected, and a beam with a strength value greater than a difference between an absolute beam threshold value and a hysteresis factor is used as a target beam. By setting the hysteresis factor, the elastic interval is increased, and the target beam screened for the first time meets the basic selection condition, so that secondary screening is performed according to the target beam in the subsequent process, the dominant beam is obtained, and the stability of the dominant beam is improved.

In the embodiment of the application, the hysteresis factor is set, so that the basic condition (corresponding to being greater than the absolute beam threshold value) set by the related network equipment is slightly relaxed, the elastic interval is increased, the difference between the target beam greater than the absolute beam threshold value and the hysteresis factor is screened out, the beam selection threshold in the related technology is met, and the stability of the target beam is improved.

And S203, determining at least one dominant beam from the target beams according to the strength values, the maximum strength values, the relative beam threshold values and the hysteresis factors of the target beams.

In the embodiment of the present application, after the multiple target beams are screened, a second screening of the multiple target beams is required. And in the strength values of the target beams, the beam with the strength value larger than the difference between the maximum strength value and the relative threshold value and the hysteresis factor is used as the dominant beam, or the beam with the strength value larger than the difference between the maximum strength value and the hysteresis factor after being added and the relative threshold value is used as the dominant beam, so that the secondary screening of the target beams is realized. By setting the relative beam threshold value, the short plate beam which is far different from the maximum intensity value in the intensity values of the plurality of beams is filtered, so that the accuracy and the reliability of the dominant beam are improved. By setting the hysteresis factor, the elastic interval is increased, and the stability of the dominant beam is improved.

In the embodiment of the application, the distance between the screened dominant beam and the strongest beam Quantity0 is smaller than the sum of the relative beam threshold value and the hysteresis factor, or smaller than the difference between the relative beam threshold value and the hysteresis factor, and the short plate beams which have a larger difference with the maximum intensity value in the intensity values of the plurality of beams are filtered, so that the accuracy and the reliability of the dominant beam are improved.

And S204, calculating to obtain a measurement result of each cell according to the at least one dominant beam.

S201 and S204 in fig. 5 are consistent with the implementation process and the achieved technical effect of S101 and S104 in fig. 3, and are not described herein again.

According to the scheme provided by the embodiment of the application, the strength values of a plurality of beams corresponding to each cell are obtained; a plurality of target beams, which are greater than a difference between the absolute beam threshold value and the hysteresis factor, are determined among the plurality of beams based on the intensity values of the plurality of beams. The strength value of the target beam screened for the first time is greater than the difference between the absolute beam threshold value and the hysteresis factor, and corresponds to a basic condition (greater than the absolute beam threshold value) set by the relevant network equipment; by setting the hysteresis factor, the basic condition (corresponding to a point) set by the relevant network equipment is slightly relaxed, the elastic interval is increased, and the stability of the dominant beam is improved. At least one dominant beam is determined from the plurality of target beams based on the intensity values, maximum intensity values, relative beam threshold values, and hysteresis factors of the plurality of target beams. By setting the relative beam threshold value and performing secondary screening, short plate beams which have a larger difference with the maximum intensity value in the intensity values of the plurality of beams are filtered, so that the accuracy and the reliability of the dominant beams are improved. And according to the at least one dominant beam, the measurement result of each cell is obtained through calculation, so that the accuracy of the cell measurement result is improved.

In the embodiment of the present application, the Hysteresis factor (hystersis To Derive) may be a constant, for example, 1dB, and the Hysteresis factor is used To avoid that a certain beam fluctuates around the relative beam threshold value, which may cause frequent changes of the beam screening result. The hysteresis factor may be a variable, as explained below.

In some embodiments, the cell measurement method further comprises the step of determining a hysteresis factor. Acquiring a moving speed; when the moving speed is larger than the preset speed threshold value, the hysteresis factor is updated to be the product of the hysteresis factor and the speed scaling factor, and the speed scaling factor is a positive number larger than 1.

In this embodiment, the terminal device may determine the moving speed of the terminal device through a speed sensor or other positioning devices, and the moving speed may be used To correct a hysteresis To Derive (hysteresis To delay). When the terminal device is in a high-speed moving state, the change of the beam measurement result is relatively more severe, and the originally increased hystersis To Derive may not be able To eliminate the fluctuation due To a smaller interval. Therefore, when the terminal device is in a state of moving at a high speed, the hysteresis To Derive can be appropriately amplified.

It should be noted that the preset speed threshold may be set by those skilled in the art according to actual situations, and may be determined by a large number of cell measurement result samples, for example, 12 kilometers per hour (km/h). The speed scaling factor may be set by a person skilled in the art according to actual requirements, and the speed scaling factor is a preset value, for example, 1.2, 1.5, 2, etc., as long as the value can increase the hysteresis factor, and the embodiment of the present application is not limited thereto.

In the embodiment of the application, when the moving speed is greater than the preset speed threshold value, the value of the hysteresis factor is increased, the screening range is increased, and the accuracy of the dominant beam is improved.

In some embodiments, the cell measurement method further comprises the step of determining a velocity scaling factor before updating the hysteresis factor to the product of the hysteresis factor and the velocity scaling factor. Determining a target grade according to the moving speed and the mapping relation between a preset speed interval and a preset grade; and determining the speed scaling factor according to the target grade and the mapping relation between the preset grade and the preset speed scaling factor.

In the embodiment of the present application, the mapping relationship represents a corresponding relationship between a speed interval and a preset level, and illustratively, the interval is divided according to the size of the speed V, and the number of the speed interval may be multiple. For example, a speed interval of 5km/h V <12km/h, corresponding to a class of 1, a speed interval of 12km/h V <50km/h, corresponding to a class of 2, a speed interval of 50km/h V, corresponding to a class of 3. The mapping relationship represents a correspondence between the levels and a preset speed scaling factor, for example, a speed scaling factor of 1.2 for level 1, a speed scaling factor of 1.5 for level 2, and a speed scaling factor of 2 for level 3.

It should be noted that, the interval division manner of the speed, the correspondence between the speed interval and the level, and the size of the preset speed scaling factor can be set by those skilled in the art according to actual requirements, and are not limited to the mapping relationship listed above, and the embodiment of the present application is only an exemplary illustration, and is not limited thereto.

In the embodiment of the application, the target level is determined through the numerical value of the moving speed, and the target level reflects the speed of the moving speed, so that the size of the speed scaling factor is influenced. The speed scaling factor is closely related to the moving speed, is determined in real time according to the moving speed of the terminal equipment in the cell measuring process, and improves the diversity, the real-time performance and the accuracy of the hysteresis factor by updating the hysteresis factor according to the moving speed.

In some embodiments, S203 in fig. 5 may also be implemented by the following two examples. A first example, among a plurality of target beams, determining at least one first beam identical to any one of the acquired historical beams; the historical wave beam is the wave beam adopted when the measuring result of the cell is calculated last time; determining at least one dominant beam having a strength value greater than the first difference value among the at least one first beam; the first difference is a difference between a relative beam threshold value and a hysteresis factor subtracted from a maximum intensity value among the intensity values of the plurality of beams.

In the embodiment of the present application, target beams other than the strongest beam are evaluated one by one during secondary screening. If the target Beam has already participated in the average calculation in the previous cell quality derivation and the current measurement value of the target Beam is greater than the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Beam) -Hysteresis factor (hystersis To deviation), the target Beam is considered To be available for the average calculation of the cell quality at this time, and the target Beam meeting the above condition is taken as the dominant Beam. These selected dominant beams, which are not much different from the measurement values of the strongest beams, may become serving beams when the position of the terminal device changes, and therefore should participate in the calculation of the cell quality.

In the embodiment of the present application, if the target Beam has already participated in the average calculation at the last cell quality derivation, and the current measurement value of the target Beam is less than or equal To the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Beam) -Hysteresis factor (hystersis To deviation), the target Beam is considered To be a short-plate Beam that is greatly different from the strongest Beam, and is not participated in the calculation of the cell quality. These short plate beams, which usually have a large difference in direction and terminal location, are difficult to be serving beams and can degrade the calculated cell quality.

In the embodiment of the present application, by comparing the target beam with the beam in the previous cell quality derivation, if the target beam participates in the previous cell quality derivation in the comparison result, the secondary screening condition may be slightly widened. That is, the elastic interval is larger, the size of the elastic interval is equal to the sum of the relative beam threshold value and the hysteresis factor, and the candidate beams possibly used for service are avoided from being missed by combining the historical cell quality derivation process, so that the accuracy of the dominant beams is improved.

In some embodiments, S203 in fig. 5 may also be implemented by a second example. Determining at least one second beam different from the acquired historical beam among the plurality of target beams; determining at least one dominant beam having a strength value greater than the second difference value among the at least one second beam; the second difference is the difference between the maximum intensity value of the intensity values of the plurality of beams and the hysteresis factor, and then the difference is subtracted from the relative beam threshold value.

In the embodiment of the present application, if the target Beam does not participate in the average calculation of the cell quality at the previous time, and the current measurement value of the target Beam is greater than the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Beam) + Hysteresis factor (hystersis To deviation), the target Beam is considered To be available for the average calculation of the cell quality at this time, and the target Beam meeting the above condition is taken as the dominant Beam. And adding a hysteresis factor to further change the relative threshold into a threshold interval, so that the frequent change of the screened candidate beams can be avoided.

In the embodiment of the present application, if the target Beam does not participate in the average calculation of the previous cell quality, and the current measurement value of the target Beam is less than or equal To the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Beam) + Hysteresis factor (hystersis To deviation), the target Beam is considered To be a short-plate Beam that is greatly different from the strongest Beam, and does not participate in the calculation of the cell quality.

In the embodiment of the present application, by comparing the target beam with the beam obtained in the previous cell quality derivation, if the target beam does not participate in the previous cell quality derivation in the comparison result, the secondary screening condition needs to be slightly stricter. Namely, the elastic interval is smaller, the size of the elastic interval is equal to the difference between the threshold value of the relative wave beam and the hysteresis factor, and the process of deducing the quality of the historical cell is combined, so that the frequent change of the screened candidate wave beam is avoided, and the stability of the dominant wave beam is improved.

It should be noted that the first example is described by taking an example in which the first beam is included in the plurality of target beams, and the second example is described by taking an example in which the second beam is included in the plurality of target beams. It is understood that S203 in fig. 5 may also be a combination of the first example and the second example, that is, the plurality of target beams includes a first beam and a second beam, so as to obtain at least one dominant beam according to the processing manner in the first example and the second example.

In view of the problems in the related art described above: in the presence of short plate beams, the cell measurement results are inaccurate (see the problem description in fig. 2). The embodiment of the application introduces the relative Beam threshold value Range To Best Beam, and increases the secondary screening of the relative Beam threshold value. If the network device is configured with an absolute beam threshold (abs Thresh SS-Blocks association) that is low, or the strongest beam measurement value in the network environment is much larger than the absolute beam threshold, the relative beam threshold may prevent the screened short-board beam from pulling down the quality of the whole cell. If the second strongest beam is similar to the strongest beam, multiple beams are also screened out for averaging by using a relative beam threshold value, so that the robustness of the screened out dominant beam can be maintained.

In some embodiments, in the foregoing fig. 3, S102 and S103 may be implemented by, in a case that the beam corresponding to the maximum strength value is not the same as the historical beam corresponding to the maximum historical strength value in the last measurement, determining, according to the strength values of the multiple beams, multiple target beams that are greater than the absolute beam threshold value, from the multiple beams; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, the maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; determining a plurality of target beams which are larger than the difference between the absolute beam threshold value and the hysteresis factor in the plurality of beams according to the intensity values of the plurality of beams under the condition that the beams corresponding to the maximum intensity value are the same as the beams corresponding to the maximum historical intensity value; at least one dominant beam is determined from the plurality of target beams based on the intensity values, maximum intensity values, relative beam threshold values, and hysteresis factors of the plurality of target beams.

In this embodiment of the present application, on the premise that a basic condition is satisfied (that is, an intensity value greater than an absolute beam threshold exists in intensity values of a plurality of beams), when identification information of a beam corresponding to a maximum intensity value is satisfied and is different from identification information of a beam corresponding to the maximum intensity value when a measurement result of a cell is calculated last time, it is described that a reference value (the maximum intensity value) has been changed, a beam identification (Identity Document, ID) of a strongest beam is changed, and when a secondary beam screening condition needs to be slightly strict, that is, an elastic interval is not increased, regardless of a delay, that is, S102 and S103 in fig. 3 are performed. It can also be understood that the Hysteresis factor is set To 0 (hysteris To Derive = 0), S202 and S203 in fig. 5 described above are performed, and S102 and S103 in fig. 3 described above are the same as the screening schemes corresponding To S202 and S203 in fig. 5 described above for the case where the Hysteresis factor is 0.

In this embodiment, when the identification information of the beam corresponding to the maximum strength value is satisfied and is the same as the identification information of the beam corresponding to the maximum strength value when the measurement result of the cell was calculated last time, it is described that the beam ID of the strongest beam is not changed, and when the secondary screening condition needs to be slightly widened, that is, the elastic interval is increased, that is, the hysteresis factor is set to be a positive number, for example, 1dB, 2dB, and the like, this embodiment of the present application is not limited, and here, S202 and S203 in fig. 5 are performed.

In the embodiment of the application, by comparing whether the beam ID of the strongest beam is the same as the beam ID of the strongest beam calculated in the cell last time or not and setting the specific numerical value of the hysteresis factor according to the comparison result, the flexibility of the cell measurement method is improved, so that the dominant beam is screened according to the hysteresis factor, and the accuracy of the dominant beam is improved.

It should be noted that the absolute beam threshold value is negative because the beam intensity value is in dBm, which is usually negative, for example, -80dBm, -100 dBm. While the relative beam threshold is a relative value relative to the intensity value of the beam, so the relative beam threshold is a positive number, and similarly, the hysteresis factor is used to constrain or relax the relative beam threshold, so the hysteresis factor is also a non-negative number (0 or positive number). The hysteresis factor is smaller than the relative beam threshold, for example, the hysteresis factor is proportional to the relative beam threshold, for example, the hysteresis factor is 1/10, 1/5, and the like of the relative beam threshold, which is not limited in this embodiment of the present application.

In the following, an exemplary application of the embodiments of the present application in a practical application scenario will be described.

For example, the number of beams is used to represent the preset number, and the strongest beam measurement value is used to represent the maximum intensity value among the intensity values of the plurality of beams. As shown in fig. 6, fig. 6 is a flowchart illustrating optional steps of a method for calculating cell quality according to an embodiment of the present application.

S501, judging whether the network equipment is configured with the number of the beams (nrof SS-Blocks To Average). If yes, go to S502, otherwise go to S504 and S512.

S502, judging whether the network equipment is configured with an absolute beam threshold (Abs Thresh SS-Blocks association), if so, executing S503, otherwise, executing S504 and S512.

S503, determining whether the strongest beam measurement value is greater than an absolute beam threshold value (Abs Thresh SS-Blocks association), if yes, executing S505-S510, and if no, executing S504 and S512.

S504, the strongest beam measurement is calculated (N = 1).

It should be noted that, the above-mentioned S501-S503 are three determination steps, and these three determination steps may be executed in other order, for example, may be executed in the order of S501, S503, and S502, may be executed in the order of S502, S501, and S503, may be executed in the order of S502, S503, and S501, may be executed in the order of S503, S501, and S502, or may be executed in the order of S503, S502, and S501, and this embodiment of the present application is not limited, and the above-mentioned fig. 6 is only explained by taking S501-S503 as an example.

The following S505-S510 are secondary screens for all beams greater than the difference between the absolute beam threshold (Abs Thresh SS-Blocks consistency) and the Hysteresis factor (hysteris To Derive).

S505, predefined relative Beam threshold (Range To Beam), predefined Hysteresis factor (hysteris To Derive), and recording the current strongest Beam measurement value (Quantity 0).

Wherein the relative beam threshold value may be 10dB and the hysteresis factor may be 1dB.

S506, determining whether the current beam is used for calculating the previous cell quality, if so, performing S507, and if not, performing S509.

S507, determining whether the current Beam measurement value is greater than the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Best Beam) -Hysteresis factor (hystersis To Derive), if so, performing S510, and if not, performing S508.

S508, if there is a next beam, S506 is executed.

S509, determine whether the current Beam measurement value is greater than the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Best Beam) + Hysteresis factor (hystersis To Derive), if yes, execute S510, otherwise execute S508.

And S510, using the beam for calculating the cell quality.

S511, calculating the number of the wave beams (N is more than or equal To 1) which do not exceed the number of the wave beams (nrof SS-Blocks To Average).

And S512, performing linear average based on the screened wave beams to obtain a measurement result of the cell.

The embodiment of the application provides an optimization scheme for calculating the quality of the 5G cell, and in the process of beam screening, a relative screening threshold is introduced on the basis of an absolute screening threshold, so that the influence of too low beams on the overall measurement result of the cell can be avoided, and the process of calculating the quality of the cell is more pertinent. The cell measurement results may more intensively reflect the beam quality that the user is likely to receive service. The terminal equipment is easier to reside in a well-covered cell, and better user experience is obtained. Moreover, by introducing a Hysteresis factor (hystersis To Derive), even if there is a small fluctuation of the beam near the absolute beam threshold, the filtered beam will not change frequently (as shown in fig. 4), and the calculation result of the cell quality will be more stable and conform To the changing trend of the beam.

With reference to the cell measurement method provided in any of the above embodiments, an embodiment of the present application further provides a beam measurement result, as shown in fig. 7, and fig. 7 is an exemplary schematic diagram of another beam measurement result provided in the embodiment of the present application. In fig. 7, the beam measurement abscissa represents time, the ordinate represents the beam measurement (and may also be the beam intensity value), and the absolute beam threshold is-110 dBm. The terminal device can detect the two beams (beam 1 and beam 2) of cell 1. Wherein the wave beam1 is stronger and fluctuates around-100 dBm; beam2 is weak and fluctuates above and below the absolute beam threshold (abs Thresh SS-Blocks Consolidation).

Illustratively, beam2 at the critical point (-110 dBm) is illustrated with an absolute beam threshold of-110 dBm and a hysteresis factor of-1 dB. According to the scheme provided by the embodiment of the application, when the dominant beam is selected, the threshold value for calculating the cell quality to select the beam is an interval (for example, -109dBm to-111 dBm). In fig. 7, beam2 is not used to calculate cell quality at time T1, since beam2 was first selected for use in calculating cell quality at time T1, and beam2 is less than-110 dBm. Beam2 satisfies greater than-110 dBm at time T2, and thus beam2 is used to calculate the cell quality at time T2. At time T3, beam2 is still selected for calculating cell quality even though it is less than-110 dBm, since beam2 is greater than-111 dBm, and similarly, at times T4 and T5, since beam2 is greater than-111 dBm, beam2 is selected for calculating cell quality. At time T6, beam2 is not used to calculate cell quality at time T6 because beam2 is less than-111 dBm. At times T7 and T8, beam2 is not used to calculate cell quality at times T7 and T8, since beam2 is less than-109 dBm. At time T9, beam2 is used to calculate the cell quality at time T9, since beam2 is greater than-109 dBm. At time T10, beam2 is used to calculate the cell quality at time T10, since beam2 is greater than-111 dBm. Also shown in fig. 7 is whether beam2 is included when calculating the cell quality, where "Yes" indicates that beam2 is used to calculate the cell quality and "No" indicates that beam2 is not used to calculate the cell quality. Compared with fig. 4, it can be seen that fig. 7 introduces a hysteresis factor to avoid frequent changes of the beam screening result, and improves the stability of the beam selection result.

In view of the problems in the related art described above: the threshold for beam selection for calculating cell quality is a point, resulting in beams located near the absolute beam threshold sometimes being used for calculating cell quality and sometimes not (see problem description in fig. 4). In the beam screening process, the hysteresis factor is introduced, so that the condition that the beams fluctuate near the absolute beam threshold value cause the jump of the cell quality calculation result is avoided, the stability of the mobility evaluation of the terminal equipment is enhanced, the change of the serving cell by ping-pong is avoided, and the accuracy of the cell measurement result is improved.

Next, an exemplary application of the embodiment of the present application in a practical application scenario will be described.

Based on the foregoing fig. 6, an embodiment of the present application further provides a method for updating a hysteresis factor, as shown in fig. 8, fig. 8 is a flowchart illustrating optional steps of a method for cell measurement based on a moving speed, provided by an embodiment of the present application.

In the embodiment of the present application, since fig. 8 updates the hysteresis factor on the basis of fig. 6, and other steps are consistent, fig. 8 only shows the content inconsistent with fig. 6. Secondary screening is performed on all beams greater than the difference between the absolute beam threshold (Abs Thresh SS-Blocks correlation) and the Hysteresis factor (hystersis To Derive), and S701 To S703 are added To fig. 6.

S505, predefining a relative Beam threshold value (Range To Best Beam), predefining a Hysteresis factor (hystersis To Derive), and recording the current strongest Beam measurement value (Quantity 0).

S701, predefined moving Speed Threshold values (Speed Threshold) of the terminal equipment and Speed scaling Factors (Speed Scale Factors) of predefined hysteresis Factors.

Wherein the speed scaling factor of the predefined hysteresis factor is a positive number greater than 1.

S702, determining whether a moving Speed of the terminal device is greater than a moving Speed Threshold (Speed Threshold), if yes, performing S703, and if no, performing S506.

S703, hysteresis factor (hysteris To Derive) = Hysteresis factor (hysteris To Derive) × Speed scaling factor (Speed Scale Factors).

That is, the hysteresis factor is updated to be the product of the hysteresis factor and the velocity scaling factor.

S508, whether there is a next beam, if yes, perform S506.

S509, determining whether the current Beam measurement value is greater than the strongest Beam measurement value (Quantity 0) -relative Beam threshold value (Range To Beam) + Hysteresis factor (Hysteresis To Derive), if yes, performing S510, otherwise, performing S508.

And S510, using the beam for calculating the cell quality.

In some embodiments, after S101 in fig. 3 or S201 in fig. 5, the cell measurement method further includes the following steps. And under the condition that the intensity values of the plurality of beams are all smaller than or equal to the difference between the absolute beam threshold value and the hysteresis factor, taking the maximum intensity value of the intensity values of the plurality of beams as the measurement result of each cell.

For example, if the maximum intensity value among the intensity values of the plurality of beams is less than or equal to the difference between the absolute beam threshold and the hysteresis factor, the maximum intensity value is taken as the measurement result of each cell.

In this embodiment of the present application, if the network device does not configure the absolute beam threshold, or does not configure the preset number, or the maximum intensity value among the intensity values of the multiple beams is smaller than or equal to the difference between the absolute beam threshold and the hysteresis factor, or any combination scenario of more than two of the foregoing scenarios, it indicates that the cell measurement method is no longer applicable to the screening method of S102, and directly uses the maximum intensity value among the intensity values of the multiple beams as the measurement result of the cell.

In the embodiment of the present application, by setting three conditions, and in at least one of the three conditions, directly taking the maximum intensity value among the intensity values of the multiple beams as the measurement result of the cell, which is consistent with the processing manner in the related art, the method for measuring the cell provided in the embodiment of the present application is better compatible with the related art, and the universality of the method for measuring the cell is improved.

In some embodiments, S104 in fig. 3 or S204 in fig. 5 may further include S1041 and S1042.

S1041, screening out M candidate beams in the at least one dominant beam, wherein M is a positive integer less than or equal to a preset number.

In the embodiment of the present application, after the at least one dominant beam is screened out, if the number of the at least one dominant beam is less than or equal to the preset number, all the dominant beams are taken as candidate beams, and at this time, the number of M candidate beams is less than or equal to the preset number. If the number of the at least one dominant beam is greater than the preset number, the plurality of dominant beams need to be screened according to the intensity value, so that the number of the screened candidate beams is equal to the preset number. I.e. to screen out at least one candidate beam.

Illustratively, according to the sequence of the intensity values from large to small, the advanced preset number of candidate beams are screened out from at least one dominant beam; or, screening the later preset number of candidate beams in the at least one dominant beam according to the sequence of the intensity values from small to large. The embodiment of the present application does not limit the specific screening method.

It should be noted that the preset number is an integer greater than 1, and the preset number may be set by a person skilled in the art according To actual situations, for example, the preset number may be set To be consistent with the number N (nrof SS-Blocks To Average) of beams in the related art, so as To be better compatible with the related art, and improve the universality of the cell measurement method. The preset number may be set to 2, 3, 4, 5, etc., and this embodiment of the present application is not limited thereto.

S1042, taking the average value of the intensity values of the M candidate beams as the measurement result of the cell, thereby obtaining the measurement result of each cell.

Illustratively, the strength values of the M candidate beams are converted into power values of the M candidate beams, an average power value of the power values of the M candidate beams is calculated, the average power value is converted into an average strength value, and the average strength value is used as a measurement result of the cell.

In the embodiment of the present application, if the intensity value of a beam is in dBm, when calculating the average value of the intensity values, dBm needs to be converted into mw, and then M candidates need to be calculatedAn average value of the intensity values (mw) of the beams is selected, and the average value (mw) is converted into dBm as the intensity value of the cell (i.e., the measurement result of the cell). As shown in Table 1 above, the beam quality (i.e., the intensity value of the beam) for beam1 is-105 dBm, corresponding to 3.16 × 10 ^-11 mw, the beam quality (i.e., the intensity value of the beam) of beam2 is-80 dBm, corresponding to 1 × 10 ^-8 mw, calculated as the mean power value (3.16 × 10) ^-11 mw+1×10 ^-8 mw)/2＝5.02×10 ^-9 mw, average power of 5.02X 10 ^-9 mw is converted to-83 dBm, resulting in a cell mass of-83 dBm.

In some embodiments, after S104 in fig. 3 or S204 in fig. 5, the cell measurement method may further include the following steps. Determining a plurality of cells in which the cell is located; and determining the target cell according to the measurement results of the plurality of cells.

In this embodiment, one terminal device may correspond to multiple beams of one cell, and one terminal device is located in the coverage area of multiple cells. For each cell, the measurement results of multiple cells in which the terminal device itself is located may be determined sequentially or simultaneously according to S101-S104 in fig. 3. Then, the terminal device makes a suitable mobility judgment based on the measurement results of the plurality of cells, reselects or switches to the target cell, and the target cell may be the strongest cell, that is, the cell with the highest strength value corresponding to the measurement results, thereby improving the communication quality. The network device may also determine the target cell based on the measurement results of multiple cells, which is not limited in this embodiment of the present application.

In some embodiments, as shown in fig. 9, fig. 9 is a flowchart illustrating optional steps of another cell measurement method provided in the embodiments of the present application.

S301, obtaining the strength value of a plurality of wave beams corresponding to each cell.

S302, according to the strength values, the maximum strength values and the relative beam threshold values of the multiple beams, multiple candidate beams are determined in the multiple beams.

And S303, determining at least one dominant beam which is larger than an absolute beam threshold value from the plurality of candidate beams according to the intensity values of the plurality of candidate beams.

And S304, calculating to obtain a measurement result of each cell according to the at least one dominant beam.

The implementation process and the achieved technical effect of S301 and S304 in fig. 9 are the same as S101 and S104 in fig. 3, and are not described herein again.

In the embodiment of the present application, fig. 9 and the above-mentioned fig. 3 both describe two screening processes, and fig. 3 is to screen out a beam larger than the absolute beam threshold value among a plurality of beams, and then screen out a beam larger than the difference value obtained by subtracting the relative beam threshold value from the maximum intensity value, thereby completing the two screening processes. Fig. 9 illustrates screening of multiple beams for beams greater than the maximum intensity value minus the relative beam threshold, and then screening for beams greater than the absolute beam threshold. In the embodiment of the present application, the implementation process and the resulting technical effect of S302-S303 in fig. 9 can be referred to the description of S102-S103 in fig. 3 above.

In some embodiments, S302 and S303 in fig. 9 may also be implemented as follows. Determining a plurality of alternative beams in the plurality of beams according to the intensity values, the maximum intensity values, the hysteresis factors and the relative beam threshold values of the plurality of beams; at least one dominant beam is determined from the plurality of candidate beams that is greater than a difference between the absolute beam threshold and the hysteresis factor based on the strength values of the plurality of candidate beams.

In some embodiments, in S302 in fig. 9, the determination of the multiple candidate beams among the multiple beams according to the intensity values, the maximum intensity values, the hysteresis factors, and the relative beam threshold values of the multiple beams may be further implemented by the following two examples. A first example, determining at least one third beam which is the same as any one of the identification information of the acquired historical beams among the plurality of beams; the historical wave beam is the wave beam adopted when the measuring result of the cell is calculated last time; determining a plurality of alternative beams with intensity values larger than a third difference value in at least one third beam; the third difference is a difference between a maximum intensity value of the intensity values of the plurality of beams minus a relative beam threshold value and a hysteresis factor.

In some embodiments, the determining a plurality of candidate beams among the plurality of beams according to the strength value, the maximum strength value, the hysteresis factor and the relative beam threshold value of the plurality of beams in S302 in fig. 9 may also be implemented by the second example. Determining at least one fourth beam different from the acquired identification information of the historical beams among the plurality of beams; determining a plurality of alternative beams with intensity values larger than a fourth difference value in at least one fourth beam; the fourth difference is the difference between the maximum intensity value of the intensity values of the plurality of beams and the hysteresis factor, and then the difference is subtracted from the relative beam threshold value.

The embodiment of the present application further provides a test procedure, which includes steps 1 to 6, where the cell and beam intensity changes are shown in table 3, and table 3 provides another exemplary cell measurement result according to the embodiment of the present application. Shown in table 3 are the strength values (which may also be referred to as beam quality and beam measurement values) of the beam received by the terminal device after compensation for line loss (cable loss of the connection between the devices).

TABLE 3

Step 1, configuring an NR cell1 as a serving cell, and detecting two beams, beam1 (beam 1) and beam2 (beam 2). The communication device of cell1 is turned on and the signal quality levels of beam1 and beam2 are adjusted to-80 dBm and-120 dBm, respectively, at time T1.

And step 2, the terminal equipment resides in the cell1, enters a connection state and establishes a data service.

And step 3, configuring an absolute beam threshold value (abs threshold SS-Blocks correlation) of 46 (46 corresponds To-110 dBm) and configuring the number of beams (nrof SS-Blocks To Average) of 2 To the measurement object of the frequency point where the cell1 is configured To the terminal equipment through the reconfiguration message. The measurement and report Type (report Type) is periodic (periodic), and the report number (report Amount) is infinite (infinite), so as to pay attention to the measurement result of the cell1 reported by the terminal device.

And 4, recording the measurement result of the cell1 at the time T1. As shown in table 1, according to the cell quality calculation method in the related art, the cell1 measurement result (cell power) is-80 dBm without scheme optimization. According to the cell measurement method provided by the embodiment of the application, the cell1 measurement result (cell power) using the scheme is-80 dBm.

And step 5, at the time T2, improving the quality of the wave beam2 to-110 dBm. The measurement results of cell1 at time T2 are recorded. As shown in table 1, the cell1 measurement without scheme optimization was-80 dBm. The cell1 measurement result using this scheme is-80 dBm.

And step 6, gradually improving the quality of the beam2 to-109 dBm and-90 dBm at the time of T3-T4, and recording the measurement result of the cell1 reported by the terminal equipment during the period. As shown in table 1, cell1 measurements were-83 dBm and-82.6 dBm at times T3 and T4 without scheme optimization. Cell1 measurements using this scheme were-80 dBm and-82.6 dBm.

In the above experiment, when the measured value of the beam2 exceeds the absolute beam screening threshold value (-110 dBm) in step 6, that is, at the time point T3, and the scheme is not optimized, the terminal device uses the average value of the beam1 and the beam2 as the measurement result of the cell, that is, the beam2 participates in the calculation of the cell quality. By adopting the scheme, the result of the cell1 reported by the terminal equipment is still-80 dBm (namely the measurement value of the beam 1), namely the beam2 does not participate in the calculation of the cell quality. And the intensity of the beam2 is continuously improved, and when the intensity of the beam2 is close to the beam1, the measurement result of the cell1 reported by the terminal starts to change according to the average value of the two beams, which indicates that the terminal equipment adopts the cell quality optimization scheme provided by the embodiment of the application.

In order to implement the cell measurement method according to the embodiment of the present application, an embodiment of the present application provides a cell measurement apparatus, as shown in fig. 10, fig. 10 is an optional schematic structural diagram of the cell measurement apparatus according to the embodiment of the present application, where the cell measurement apparatus 100 includes: an obtaining module 1001, configured to obtain strength values of multiple beams corresponding to each cell; a determining module 1002, configured to determine, according to strength values of multiple beams, multiple target beams that are greater than an absolute beam threshold value among the multiple beams; the absolute beam threshold value represents a lower limit value of the strength value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value represents a relative value between the beam and the intensity value of the beam; a measurement module 1003, configured to obtain a measurement result of each cell according to the at least one dominant beam.

In some embodiments, the determining module 1002 is further configured to determine, from the intensity values of the plurality of beams, a plurality of target beams among the plurality of beams, which are larger than a difference between the absolute beam threshold value and the hysteresis factor; determining at least one dominant beam from the plurality of target beams based on the intensity values, maximum intensity values, relative beam threshold values, and hysteresis factors of the plurality of target beams

In some embodiments, the determining module 1002 is further configured to determine, among the plurality of target beams, at least one first beam that is the same as any of the acquired history beams; the historical wave beam is the wave beam adopted when the measuring result of the cell is calculated last time; determining at least one dominant beam having a strength value greater than the first difference value among the at least one first beam; the first difference is a difference between a relative beam threshold value and a hysteresis factor subtracted from a maximum intensity value among the intensity values of the plurality of beams.

In some embodiments, the determining module 1002 is further configured to determine, among the plurality of target beams, at least one second beam different from the acquired historical beam; determining at least one dominant beam having a strength value greater than the second difference value among the at least one second beam; the second difference is the difference between the maximum intensity value of the intensity values of the plurality of beams and the hysteresis factor subtracted by the relative beam threshold value.

In some embodiments, the determining module 1002 is configured to, when the beam corresponding to the maximum strength value is satisfied and the historical beam corresponding to the maximum historical strength value in the last measurement is not the same, determine, according to strength values of multiple beams, multiple target beams that are greater than an absolute beam threshold value in the multiple beams; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, the maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; determining a plurality of target beams which are larger than the difference between the absolute beam threshold value and the hysteresis factor in the plurality of beams according to the strength values of the plurality of beams under the condition that the beams corresponding to the maximum strength value are the same as the beams corresponding to the maximum historical strength value; at least one dominant beam is determined from the plurality of target beams based on the intensity values, maximum intensity values, relative beam threshold values, and hysteresis factors of the plurality of target beams.

In some embodiments, the cell measurement apparatus 100 further comprises an update module 1004;

the obtaining module 1001 is further configured to obtain a moving speed;

the updating module 1004 is configured to update the hysteresis factor to a product of the hysteresis factor and a velocity scaling factor when the moving velocity is greater than a predetermined velocity threshold, where the velocity scaling factor is a positive number greater than 1.

In some embodiments, the determining module 1002 is further configured to determine a target level according to the moving speed and a mapping relationship between a preset speed interval and a preset level; and determining the speed scaling factor according to the target grade and the mapping relation between the preset grade and the preset speed scaling factor.

In some embodiments, the determining module 1002 is further configured to determine the relative beam threshold value according to a distribution of the intensity values of the multiple beams and a maximum intensity value.

In some embodiments, the determining module 1002 is further configured to filter out M candidate beams from the at least one dominant beam, where M is a positive integer less than or equal to a preset number;

the measuring module 1003 is further configured to use an average value of the intensity values of the M candidate beams as a measurement result of the cell, so as to obtain a measurement result of each cell.

In some embodiments, the determining module 1002 is further configured to determine a plurality of alternative beams among the plurality of beams according to the strength values, the maximum strength values, and the relative beam threshold values of the plurality of beams; at least one dominant beam is determined from the plurality of candidate beams that is greater than the absolute beam threshold value based on the intensity values of the plurality of candidate beams.

In some embodiments, the measurement module 1003 is further configured to use the maximum intensity value of the intensity values of the multiple beams as the measurement result of each cell if the intensity values of the multiple beams are all smaller than or equal to the difference between the absolute beam threshold and the hysteresis factor.

In some embodiments, the determining module 1002 is further configured to determine a plurality of cells in which the determining module is located; and determining the target cell according to the measurement results of the plurality of cells.

It should be noted that, when the cell measurement device provided in the foregoing embodiment performs cell measurement, the division of the program modules is merely exemplified, and in practical applications, the above processing may be distributed to different program modules according to needs, that is, the internal structure of the device may be divided into different program modules to complete all or part of the above-described processing. In addition, the cell measurement apparatus and the cell measurement method provided by the above embodiments belong to the same concept, and specific implementation processes and beneficial effects thereof are detailed in the method embodiments and are not described herein again. For technical details not disclosed in the embodiments of the apparatus, reference is made to the description of the embodiments of the method of the present application for understanding.

In this embodiment of the present application, fig. 11 is a schematic view of a composition structure of a cell measurement device according to an embodiment of the present application, and as shown in fig. 11, a cell measurement device 110 according to an embodiment of the present application includes a processor 1101, a memory 1102 storing an executable computer program, and the processor 1101 is configured to implement the cell measurement method according to the embodiment of the present application when executing the executable computer program stored in the memory 1102. In some embodiments, the cell measurement device 110 may also include a communication interface 1103, and a bus 1104 connecting the processor 1101, the memory 1102, and the communication interface 1103.

It should be noted that the cell measurement device 110 in fig. 11 may be the terminal device 12 in fig. 1 described above.

In the embodiment of the present Application, the Processor 1101 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a ProgRAMmable Logic Device (PLD), a Field ProgRAMmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor. It is understood that the electronic devices for implementing the above processor functions may be other devices, and the embodiments of the present application are not limited in particular.

In this embodiment, the bus 1104 is used to connect the communication interface 1103, the processor 1101 and the memory 1102, so as to realize the intercommunication among these devices.

Memory 1102 is used to store executable computer programs including computer operating instructions and data, and memory 1102 may comprise high speed RAM memory and may also include non-volatile memory, such as at least two disk storage. In practical applications, the Memory 1102 may be a volatile Memory (volatile Memory), such as a Random-Access Memory (RAM); or a non-volatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk Drive (HDD) or a Solid-State Drive (SSD); or a combination of the above types of memories and provides executable computer programs and data to the processor 1101.

In addition, each functional module in this embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a hardware mode, and can also be realized in a software functional module mode.

Based on the understanding that the technical solution of the present embodiment essentially or a part contributing to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and is used for implementing the cell measurement method according to any one of the above embodiments when executed by a processor.

For example, the program instructions corresponding to a cell measurement method in this embodiment may be stored in a storage medium such as an optical disc, a hard disc, or a usb disk, and when the program instructions corresponding to a cell measurement method in the storage medium are read or executed by an electronic device, the cell measurement method according to any of the above embodiments may be implemented.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of implementations of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or flowchart block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart block or blocks for implementing the flowchart block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims

1. A method of cell measurement, the method comprising:

acquiring intensity values of a plurality of beams corresponding to each cell;

determining a plurality of target beams among the plurality of beams that are greater than an absolute beam threshold value according to the strength values of the plurality of beams; the absolute beam threshold value represents a lower limit value of the intensity value of the screening beam;

determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value characterizes a relative value between the beam and the intensity value of the beam;

and calculating to obtain the measurement result of each cell according to the at least one dominant beam.

2. The method of claim 1, wherein determining a plurality of target beams among the plurality of beams that are greater than an absolute beam threshold based on the strength values of the plurality of beams comprises:

determining a plurality of target beams in the plurality of beams that are greater than a difference between an absolute beam threshold value and a hysteresis factor according to the intensity values of the plurality of beams;

the determining at least one dominant beam from the plurality of target beams according to the strength values of the plurality of target beams, the maximum strength value of the strength values of the plurality of beams, and a relative beam threshold value includes:

determining at least one dominant beam from the plurality of target beams based on the intensity values of the plurality of target beams, the maximum intensity value, a relative beam threshold value, and the hysteresis factor.

3. The method of claim 2, wherein determining at least one dominant beam from the plurality of target beams based on the intensity values of the plurality of target beams, the maximum intensity value, a relative beam threshold value, and the hysteresis factor comprises:

determining at least one first beam identical to any one of the acquired historical beams among the plurality of target beams; the historical wave beam is the wave beam adopted when the measuring result of the cell is calculated last time;

determining at least one dominant beam of the at least one first beam whose intensity value is greater than a first difference value; the first difference is the difference between the relative beam threshold value and the hysteresis factor subtracted from the maximum strength value.

4. The method of claim 2, wherein determining at least one dominant beam from the plurality of target beams based on the strength values of the plurality of target beams, the maximum strength value, a relative beam threshold value, and the hysteresis factor comprises:

determining at least one second beam different from the acquired historical beam among the plurality of target beams;

determining at least one dominant beam of which the strength value is greater than a second difference value in the at least one second beam; the second difference is a difference between the relative beam threshold value and the sum of the maximum intensity value and the hysteresis factor.

5. The method according to any of claims 1-4, wherein said determining a plurality of target beams among said plurality of beams is based on intensity values of said plurality of beams, said target beams being larger than an absolute beam threshold value; determining at least one dominant beam from among a plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value among the intensity values of the plurality of beams, and a relative beam threshold value, including:

determining a plurality of target beams which are larger than an absolute beam threshold value from the plurality of beams according to the strength values of the plurality of beams under the condition that the beams corresponding to the maximum strength value are different from the historical beams corresponding to the maximum historical strength value in the last measurement; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value;

determining a plurality of target beams which are larger than the difference between an absolute beam threshold value and a hysteresis factor in a plurality of beams according to the intensity values of the plurality of beams under the condition that the beams corresponding to the maximum intensity value are the same as the beams corresponding to the maximum historical intensity value; determining at least one dominant beam from the plurality of target beams based on the intensity values of the plurality of target beams, the maximum intensity value, a relative beam threshold value, and the hysteresis factor.

6. The method of any of claims 2-4, wherein prior to determining the plurality of target beams in the plurality of beams that are greater than the difference between the absolute beam threshold and the hysteresis factor based on the intensity values of the plurality of beams, the method further comprises:

acquiring a moving speed;

and when the moving speed is greater than a preset speed threshold value, updating the hysteresis factor into the product of the hysteresis factor and a speed scaling factor, wherein the speed scaling factor is a positive number greater than 1.

7. The method of claim 6, wherein prior to updating the hysteresis factor to the product of the hysteresis factor and a speed scaling factor, the method further comprises:

determining a target grade according to the moving speed and a mapping relation between a preset speed interval and a preset grade;

and determining the speed scaling factor according to the target grade and the mapping relation between the preset grade and the preset speed scaling factor.

8. The method of any of claims 1-4, wherein prior to determining at least one dominant beam from the plurality of target beams based on the intensity values of the plurality of target beams, the maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value, the method further comprises:

and determining the relative beam threshold value according to the distribution condition of the intensity values of the beams and the maximum intensity value.

9. The method according to any of claims 1-4, wherein said calculating the measurement result of each cell according to the at least one dominant beam comprises:

screening out M candidate beams in the at least one dominant beam, wherein M is a positive integer less than or equal to a preset number;

and taking the average value of the strength values of the M candidate beams as the measurement result of the cell, thereby obtaining the measurement result of each cell.

10. The method according to any of claims 1-4, wherein after obtaining the intensity values of the plurality of beams corresponding to each cell, the method further comprises:

determining a plurality of alternative beams among the plurality of beams according to the intensity values of the plurality of beams, the maximum intensity value and a relative beam threshold value;

at least one dominant beam greater than an absolute beam threshold value is determined from a plurality of candidate beams based on intensity values of the plurality of candidate beams.

11. The method according to any of claims 2-4, wherein after obtaining the intensity values of the plurality of beams corresponding to each cell, the method further comprises:

and taking the maximum intensity value of the intensity values of the plurality of beams as the measurement result of each cell under the condition that the intensity values of the plurality of beams are all smaller than or equal to the difference between the absolute beam threshold value and the hysteresis factor.

12. The method according to any one of claims 1-4, further comprising:

determining a plurality of cells in which the cell is located;

and determining the target cell according to the measurement results of the plurality of cells.

13. An apparatus for cell measurement, the apparatus comprising:

the acquisition module is used for acquiring the strength values of a plurality of beams corresponding to each cell;

a determining module, configured to determine, according to the strength values of the multiple beams, multiple target beams that are greater than an absolute beam threshold value among the multiple beams; the absolute beam threshold value represents a lower limit value of the intensity value of the screening beam; determining at least one dominant beam from the plurality of target beams according to the intensity values of the plurality of target beams, a maximum intensity value of the intensity values of the plurality of beams, and a relative beam threshold value; the relative beam threshold value characterizes a relative value between the beam and the intensity value of the beam;

and the measuring module is used for calculating and obtaining the measuring result of each cell according to the at least one dominant beam.

14. A cell measurement device, characterized in that the device comprises:

a memory for storing an executable computer program;

a processor for implementing the method of any one of claims 1-12 when executing an executable computer program stored in the memory.

15. A computer-readable storage medium, characterized in that a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1-12.