WO2019140598A1 - Cell signal quality determination method and apparatus, and system - Google Patents

Abstract

Provided are a cell signal quality determination method and apparatus, and a system, relating to the field of communications. The method comprises: a terminal receives n threshold values and a weighting factor corresponding to each threshold value; the terminal measures the signal qualities of m beams belonging to a same cell; the terminal determines the cell signal quality of the cell according to the signal quality of each beam, the n threshold values and the weighting factors. A comprehensive evaluation is carried out by means of the signal qualities of the m beams belonging to the same cell in combination with the n threshold values and the weighting factors, and an accurate evaluation and representation can be carried out for the cell signal quality of the same cell by means of the signal qualities of the plurality of beams, so as to achieve the effect of carrying out an accurate quantisation by means of the cell signal qualities of the plurality of beams.

Description

Method, device and system for determining cell signal quality Technical field

The embodiments of the present invention relate to the field of communications, and in particular, to a cell signal quality determining method, apparatus, and system.

Background technique

A terminal in an idle state usually needs to perform procedures such as Public Land Mobile Network (PLMN) selection, cell selection/cell reselection, and location registration when accessing a cell. The cell reselection process may enable the terminal to camp on a suitable cell.

In a Long-Term Evolution (LTE) system, a terminal measures signal quality of a serving cell and a neighboring cell to obtain a first signal quality of the serving cell and a second signal quality of the neighboring cell. When the second signal quality is better than the first signal quality and the duration of the second signal quality reaches the threshold, the terminal reselects the neighboring cell as a new serving cell and camps on the new serving cell.

However, in the New Radio (NR) system, the same cell will use a number of different pointing beams to provide services. For a cell using multiple beams, there is no solution for determining the cell signal quality.

Summary of the invention

The embodiment of the present application provides a method, a device, and a system for determining a cell signal quality, which can solve the problem of how to determine the cell signal quality for a cell that uses multiple beams.

According to a first aspect of the present application, a cell signal quality determining method is provided, the method comprising:

The terminal receives n threshold values and a weighting factor corresponding to each of the threshold values;

The terminal measures signal quality of m beams belonging to the same cell;

Determining, by the terminal, a cell signal quality of the cell according to a signal quality of each of the beams, the n thresholds, and the weighting factor;

Where m and n are integers and n is greater than 1

According to a second aspect of the present application, a method for determining a cell signal quality is provided, the method comprising:

The access network device determines n threshold values and a weighting factor corresponding to each of the threshold values;

The access network device sends, to the terminal, the n threshold values and a weighting factor corresponding to each of the threshold values, where the n threshold values and a weighting factor corresponding to each of the threshold values are used a parameter when the terminal determines a cell signal quality;

Where n is an integer greater than one.

According to a third aspect of the present application, there is provided a cell signal quality determining apparatus, the apparatus comprising:

a receiving module, configured to receive n threshold values and a weighting factor corresponding to each of the threshold values;

a processing module, configured to measure signal quality of m beams belonging to the same cell;

The processing module is further configured to determine a cell signal quality of the cell according to a signal quality of each of the beams, the n thresholds, and the weighting factor; where m and n are integers and n Greater than 1.

According to a fourth aspect of the present application, there is provided a cell signal quality determining apparatus, the apparatus comprising:

a processing module, configured to determine n threshold values and a weighting factor corresponding to each of the threshold values;

a sending module, configured to send, to the terminal, the n threshold values and a weighting factor corresponding to each of the threshold values, where the n threshold values and a weighting factor corresponding to each of the threshold values are used as The parameter when the terminal determines the cell signal quality; where n is an integer greater than 1.

According to a fifth aspect of the present application, there is provided a terminal, the terminal comprising a processor and a memory, the memory storing at least one instruction for execution by the processor to implement the first The cell signal quality determining method described in the aspect.

According to a sixth aspect of the present application, an access network device is provided, the access network device comprising a processor and a memory, the memory storing at least one instruction, the at least one instruction being used by the processor Performing to implement the cell signal quality determining method as described in the second aspect above.

According to a seventh aspect of the present application, there is provided a computer readable storage medium storing at least one instruction for execution by a processor to implement the cell signal of the first aspect Quality determination method.

According to an eighth aspect of the present application, a computer readable storage medium is provided, the storage medium storing at least one instruction for being executed by a processor to implement the cell signal of the second aspect Quality determination method.

According to a ninth aspect of the present application, a communication system is provided, the system comprising: a terminal and an access network device;

The terminal includes the device according to the third aspect, the access network device includes the device according to the fourth aspect; or the terminal is the terminal according to the fifth aspect, the access network device An access network device as described in the sixth aspect.

The beneficial effects of the technical solutions provided by the embodiments of the present application are:

By comprehensively evaluating the signal quality of m beams of the same cell and combining n threshold values and weighting factors, the signal quality of multiple beams can be used to accurately evaluate and characterize the cell signal quality of the same cell; To solve the problem that the cell signal quality is not solved by the cell using multiple beams, the effect of accurately calculating the cell signal quality of the cell using multiple beams is achieved.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic structural diagram of a mobile communication system according to an exemplary embodiment of the present application;

2 is a schematic diagram of a cell using a beam provided by an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of a cell using a beam according to another exemplary embodiment of the present application; FIG.

4 is a flowchart of a cell signal quality determining method provided by an exemplary embodiment of the present application;

FIG. 5 is a flowchart of a method for determining a cell signal quality according to another exemplary embodiment of the present application;

6 is a flowchart of a method for determining a cell signal quality according to another exemplary embodiment of the present application;

FIG. 7 is a flowchart of a method for determining a cell signal quality according to another exemplary embodiment of the present application;

8 is a block diagram of a cell signal quality apparatus provided by an exemplary embodiment of the present application;

9 is a block diagram of a cell signal quality apparatus provided by another exemplary embodiment of the present application;

FIG. 10 is a structural block diagram of a terminal provided by another exemplary embodiment of the present application; FIG.

FIG. 11 is a structural block diagram of an access network device according to another exemplary embodiment of the present application.

Detailed ways

In order to make the objects, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

A "module" as referred to herein generally refers to a program or instruction stored in a memory that is capable of performing certain functions; "unit" as referred to herein generally refers to a functional structure that is logically divided, the "unit" It can be implemented by pure hardware or a combination of hardware and software.

"Multiple" as referred to herein means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. The character "/" generally indicates that the contextual object is an "or" relationship. The words "first", "second" and similar terms used in the specification and claims of the present application do not denote any order, quantity, or importance, but are merely used to distinguish different components.

Please refer to FIG. 1 , which is a schematic structural diagram of a mobile communication system according to an embodiment of the present application. The mobile communication system can be a 5G system, also known as an NR system. The mobile communication system includes an access network device 120 and a terminal 140.

Access network device 120 can be a base station. For example, the base station may be a base station (gNB) employing a centralized distributed architecture in a 5G system. When the access network device 120 adopts a centralized distributed architecture, it generally includes a central unit (CU) and at least two distributed units (DUs). a centralized data unit is provided with a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer protocol stack; A physical (physical, PHY) layer protocol stack is provided in the unit. The specific implementation manner of the access network device 120 in this embodiment of the present application is not limited. Optionally, the access network device may further include a home base station (Home eNB, HeNB), a relay, a pico base station Pico, and the like. Access network device 120 may also be referred to as a network side device. The generalized network side device further includes a core network device (not shown) located above the access network device 120.

The access network device 120 and the terminal 140 establish a wireless connection through the wireless air interface. Optionally, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or the wireless air interface may also be a 5G based next generation mobile communication network technology. Standard wireless air interface.

Terminal 140 may be a device that provides voice and/or data connectivity to a user. The terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal.

It should be noted that, in the mobile communication system shown in FIG. 1, multiple access network devices 120 and/or multiple terminals 140 may be included, and one access network device 120 and one terminal 140 are shown in FIG. For example, this embodiment does not limit this.

Optionally, the application scenarios of the 5G system include, but are not limited to, Enhanced Mobile BroadBand (eMBB), Ultra Reliable & Low Latency Communication (URLLC), Massive Machine Type Communication (massive Machine Type Communication) , mMTC).

Among them, eMBB aims at users to obtain multimedia content, services and data, and its demand is growing rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, the difference in capabilities and needs is relatively large. Typical applications for URLLC include: industrial automation, power automation, telemedicine operations (surgery), and traffic safety. Features of mMTC include: high connection density, small data volume, delay-insensitive service, low cost and long life of the module.

First introduce the several nouns involved in this application:

Synchronization signal/physical broadcast channel block (SS/PBCH block, SSB): common synchronization signal (PSS), secondary synchronization signal (SSS) and physical broadcast channel (PBCH) Form an SSB. The SSB occupies 4 symbols in the time domain, and the frequency domain occupies a total of 240 subcarriers. Of course, the SSB can also occupy resources in the time domain and/or the frequency domain in other manners, which is not limited in this embodiment.

Serving cell: The cell where the terminal currently resides.

Adjacent cell: A non-serving cell that can be measured by the current location of the terminal.

Beamforming: A technique that focuses the energy of a wireless signal to form a beam with directivity. Generally, the narrower the beam, the greater the signal gain. In the 5G system, the access network equipment and the terminal will use the high frequency band above 6 GHz. However, in the high frequency band, the attenuation of the high frequency signal is large, which in turn leads to a small coverage of the high frequency signal. In order to solve the problem that the high frequency signal coverage is poor and the attenuation is large, the cells in the 5G system use the beam to provide services to the terminal. For example, system information is transmitted through a beam, downlink data is transmitted through a beam, and the like.

Please refer to FIG. 2, which shows a schematic diagram of a cell using a beam provided by an exemplary embodiment of the present application. The cells provided by the access network device 220 are covered in a circular or approximately circular area. One or more terminals 240 are distributed within the coverage of the cell. The access network device 220 provides multiple beams in a 360° transmission direction, such as 4 beams, each of which covers a 90° range; for example, 12 beams, each beam 30°; for example, 64 beams Each beam covers 5.625 degrees. The number of beams provided by the access network device 220 and the range of angles covered by each beam are not limited in this embodiment of the present application. Among the plurality of beams provided by the access network device 220, each terminal 240 has a beam suitable for itself according to the location of the terminal 240.

After beamforming, the access network device needs to use multiple differently directed beams to fully cover the cell. As shown in FIG. 3, the cell provided by the access network device 220 is covered in a circular or approximately circular area, and two terminals 242 and 244 are distributed within the coverage of the cell. Access network device 220 uses eight transmit beams to cover the cells it serves, with each transmit beam covering a 45[deg.] range. In FIG. 3, four beams t1, t2, t3, and t4 are shown. In the downlink process, the access network device sequentially transmits wireless signals by using different directed transmit beams, and the process is called beam sweeping; At the same time, the terminal measures the wireless signal (Beam measurement) transmitted by different transmitting beams, and reports the related information to the access network device; the access network device determines the optimal transmission to the terminal according to the report of the terminal. Beam determination.

The NR system allows the terminal to transform the transmit beams into different receive beams and select the best receive beam therefrom, thereby producing a pair of optimal "transmit beam-receive beams". The optimal beam pair (t2, r3) corresponding to the terminal 242 in Figure 3 above, and the optimal beam pair corresponding to the terminal 244 is (t3, r2).

Obviously, the same terminal can receive multiple beams of the same cell at the same time or at the same time, and multiple beams of different cells can be received simultaneously or at different times.

Please refer to FIG. 4, which shows a flowchart of a cell signal quality determining method provided by an exemplary embodiment of the present application. This embodiment is exemplified by applying the method to the terminal shown in FIG. 1. The method includes:

Step 401: The terminal receives n threshold values and a weighting factor corresponding to each threshold value.

The terminal receives n threshold values sent by the access network device and a weighting factor corresponding to each threshold value. Where n is an integer greater than one. In one possible embodiment, any two of the n threshold values are different, and the n threshold values are arranged in descending order.

Alternatively, n threshold values are thresholds for signal quality evaluation according to beam granularity.

Optionally, n threshold values are signal quality thresholds for cell reselection.

Optionally, the sum of the weight factors corresponding to the n threshold values is equal to 1. For example, there are three threshold values th1, th2, and th3, which in turn correspond to three weighting factors fa1, fa2, and fa3. Among them, fa1=0.6, fa2=0.3, and fa3=0.1.

Step 402: The terminal measures signal quality of m beams that belong to the same cell.

The terminal can receive the signal quality of m beams belonging to the same cell in the same location or during the mobile process, and m is a positive integer. Optionally, the cell is a serving cell and/or a neighboring cell. To simplify the description, the present embodiment is described in terms of one of the cells, but in practice the terminal can measure the signal quality of multiple beams of a plurality of cells.

Optionally, the beam is a downlink transmit beam of the cell.

Step 403: The terminal determines a cell signal quality of the cell according to a signal quality, a threshold value, and a weighting factor of each beam.

The terminal comprehensively calculates the cell signal quality of the cell according to the measured signal quality of each beam, n threshold values, and a weighting factor.

Optionally, there is at least one cell corresponding to at least two beams.

In summary, the method provided in this embodiment can comprehensively evaluate the signal quality of m beams of the same cell, combined with n threshold values and weight factors, and can adopt the signal quality of multiple beams to the same cell. The cell signal quality is more accurately evaluated and characterized. It can solve the problem of how to judge the cell signal quality for a cell using multiple beams, and achieve a more accurate quantization effect by using multiple beams.

The method provided in this embodiment can comprehensively consider the signal quality of multiple beams of the same cell, and improve the accuracy of the calculated cell signal quality, as compared with the method of directly adopting one beam with the best signal quality in the cell as the cell signal quality. Sex.

In an optional implementation manner of step 403, the terminal determines the cell signal quality of the cell according to the signal quality of each beam, the maximum threshold value reached by the signal quality of each beam, and the weighting factor corresponding to the maximum threshold value. . At this time, step 403 can be implemented as step 403a and step 403b instead, as shown in FIG. 5:

Step 403a, for the kth threshold value of the n threshold values, the terminal calculates an average value of the signal quality of the kth group beam whose signal quality reaches the kth threshold value, and determines the average value as the kth threshold. The signal quality component corresponding to the value, k is an integer less than or equal to n;

If the n thresholds are arranged in descending order, the signal quality of one beam reaches the kth threshold at the maximum: the k-1th threshold > the signal quality of the beam ≥ the kth threshold value.

If n thresholds are arranged in order from low to high, the signal quality of one beam reaches the kth threshold at the maximum: the kth threshold ≤ the signal quality of the beam < the k+1th threshold value.

Step 403b: The terminal determines the weighted sum of the signal quality component and the weighting factor corresponding to each of the n threshold values as the cell signal quality of the cell.

For example, the terminal acquires three threshold values th1>th2>th3, which respectively correspond to weight factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. If the signal quality of the x first beams is greater than th1, and the signal quality of the y second beams is greater than th2 and less than th1, and the signal quality of the z third beams is greater than th3 and less than th2, the cell signal of the cell is calculated. The quality is:

The average of the signal qualities of the x first beams *fa1 + the average of the signal qualities of the second beams * fa2 + the average of the signal qualities of the third beams * fa3.

Where x+y+z≤m.

In summary, the method provided in this embodiment can accurately judge the cell signal quality of the cell according to the number of beams whose signal quality reaches the threshold value and the weight factor corresponding to each threshold. In a specific example, the terminal can measure that the signal quality of the beam 1 of the cell A is relatively moderate, and the signal quality of the beam 2 of the cell B can be measured to be good, and the signal quality of the beam 3 of the cell B is measured to be poor. In order to reduce the impact of the beam 3 on the cell signal quality of the cell B, a higher threshold can be set by a higher threshold, and a lower threshold has a weaker weight factor, so that the terminal can preferentially reselect the cell. Cell B is selected as the cell to be camped on.

In an alternative embodiment based on FIG. 5, for the ith threshold of the n thresholds, if there is no beam with the highest signal quality reaching the ith threshold and the signal quality reaches the jth threshold For the jth group of beams, the average value of the signal quality of the jth group beam is determined as the signal quality component corresponding to the ith threshold.

Optionally, the jth threshold is less than the ith threshold. The jth threshold may be a next threshold less than the ith threshold, such as the i+1th threshold; the jth threshold may also be less than the ith threshold and have a corresponding jth group The most recent threshold of the beam; the jth threshold may also be any one of the thresholds less than the i-th threshold. This embodiment of the present application does not limit this.

For example, the terminal acquires four threshold values th1>th2>th3>th4, which respectively correspond to weight factors fa1, fa2, fa3, and fa4, where fa1+fa2+fa3+fa4=1. If the signal quality of the x first beams is greater than th1, the signal quality of any one of the beams is greater than th2 and less than th1, and the signal quality of the y third beams is greater than th3 and less than th2, and signals of the z fourth beams are present. If the quality is greater than th4 and less than th3, the cell signal quality of the cell is calculated as:

The average of the signal qualities of the x first beams *fa1 + the average of the signal qualities of the third beams * fa2+ the average of the signal qualities of the third beams * fa3 + the signal quality of the third beams Average value *fa4 = average value of signal quality of x first beams * fa1 + average value of signal quality of y third beams * (fa2 + fa3) + average value of signal quality of z third beams * Fa4.

For another example, the terminal acquires four threshold values th1>th2>th3>th4, corresponding to weight factors fa1, fa2, fa3, and fa4, respectively, where fa1+fa2+fa3+fa4=1. If the signal quality of the x first beams is greater than th1, the signal quality of any one of the beams is greater than th2 and less than th1, and the signal quality of any one beam is greater than th3 and less than th2, and signals of the y fourth beams are present. If the quality is greater than th4 and less than th3, the cell signal quality of the cell is calculated as:

Average value of signal quality of x first beams * fa1 + average value of signal quality of four fourth beams * fa2+ average of signal quality of four fourth beams * fa3 + signal quality of four fourth beams Average value *fa4 = average value of signal quality of x first beams * fa1 + average value of signal quality of four fourth beams * (fa2+fa3 + fa4).

In summary, the method provided in this embodiment can set the weight of the ith threshold when there is no corresponding ith beam group in the ith threshold and the corresponding jth beam group exists in the jth threshold. The factor is shifted down to the jth threshold value, so that the average value of the beam signal quality corresponding to the jth threshold value is used to represent the beam signal quality corresponding to the ith threshold value, so that the cell signal quality is more accurately quantized. effect.

In an alternative embodiment based on FIG. 5, for the ith threshold of the n thresholds, if there is no beam with the highest signal quality reaching the ith threshold and the signal quality reaches the jth threshold When the jth group beam is used, the preset reference signal quality is determined as the signal quality component corresponding to the ith threshold, and i is an integer less than or equal to n.

Optionally, each of the n threshold values corresponds to a respective preset reference signal quality; or, at least two of the n threshold values correspond to different preset reference signal qualities; or Each of the n thresholds shares the same preset reference signal quality.

Optionally, the preset reference signal quality is pre-configured by the access network device, or the preset reference signal quality is pre-determined.

For example, the terminal acquires three thresholds th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. The three thresholds also correspond to respective preset reference signal qualities sq1, sq2, and sq3. Sq1>sq2>sq3, that is, any two of the three preset reference signal qualities are different.

If the signal quality of the x first beams is greater than th1, and the signal quality of any one of the beams is greater than th2 and less than th1, and the signal quality of the y third beams is greater than th3 and less than th2, the cell signal quality of the cell is calculated. for:

The average of the signal qualities of the x first beams *fa1 + sq2 * fa2 + the average of the signal qualities of the third beams * fa3.

For another example, the terminal acquires three threshold values th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. Wherein, th1 corresponds to a preset reference signal quality sq1, and th2 and th3 correspond to a preset reference signal quality sq2. Among them, sq1>sq2.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2 and less than th1, and the signal quality of the x third beams is greater than th3 and less than th2, the cell signal quality of the cell is calculated as :

The average value of the signal quality of sq1*fa1+sq2*fa2+x third beams*fa3.

For another example, the terminal acquires three threshold values th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. The three thresholds correspond to the same preset reference signal quality sqx.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2 and less than th1, and the signal quality of the x third beams is greater than th3 and less than th2, the cell signal quality of the cell is calculated as :

The average value of the signal quality of sqx*fa1+sqx*fa2+x third beams*fa3.

In another optional embodiment, each of the n threshold values shares the same predetermined reference signal quality, the predetermined reference signal quality being zero.

For example, the terminal acquires three thresholds th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. The three thresholds correspond to the same preset reference signal quality of zero.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2 and less than th1, and the signal quality of the x third beams is greater than th3 and less than th2, the cell signal quality of the cell is calculated as :

The average value of the signal quality of the x third beams *fa3.

In summary, the method provided in this embodiment can use the preset reference signal quality to represent the beam signal quality corresponding to the ith threshold when the corresponding i-th beam group does not exist in the ith threshold, so that The effect of accurately quantifying the signal quality of the cell. Optionally, if there is only one beam with a higher signal quality for the cell A, and there are multiple beams with a higher signal quality for the cell B, the reselection priority of the cell A relative to the cell B is weakened to some extent, and the cell B is added. The probability of being reselected as the serving cell to camp on.

In another optional implementation manner of step 403, the terminal determines the cell signal of the cell according to the signal quality of each beam, the threshold value reached by the signal quality of each beam, and the weighting factor corresponding to each threshold. quality. At this time, step 403 can be implemented as step 4031 and step 4032 instead, as shown in FIG. 6:

Step 4031: For the kth threshold value of the n threshold values, the terminal calculates an average value of the signal quality of the kth group beam whose signal quality reaches the kth threshold value, and determines the average value as the kth threshold value. Corresponding signal quality component, k is an integer less than or equal to n;

If the n thresholds are arranged in descending order, the signal quality of one beam reaches the kth threshold, which means that the signal quality of the beam is ≥ the kth threshold. At this time, the signal quality of the beam may be greater than the k-1th threshold, or even the k-2th threshold, which is not limited in this embodiment.

If n threshold values are arranged in descending order, the signal quality of one beam reaches the kth threshold value: the kth threshold value ≤ the signal quality of the beam.

Step 4032: Determine a weighted sum of a signal quality component and a weighting factor corresponding to each of the n threshold values as a cell signal quality of the cell.

For example, the terminal acquires three threshold values th1>th2>th3, which respectively correspond to weight factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. If the signal quality of the beam 1, the beam 2, and the beam 3 is greater than th1, the signal quality of the beam 1, the beam 2, the beam 3, and the beam 4 is greater than th2, and the beam 1, the beam 2, the beam 3, the beam 4, and the beam 5 are present. If the signal quality is greater than th3, the cell signal quality of the cell is calculated as:

Average value of signal quality of beams 1 to 3 * fa1 + average value of signal qualities of beams 1 to 4 * fa + average value of signal qualities of beams 1 to 5 * fa3.

Where x+y+z≤m.

In an alternative embodiment based on FIG. 6, for the ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold and the signal quality reaches the jth threshold For the j group beam, the average value of the signal quality of the jth group beam is determined as the signal quality component corresponding to the ith threshold value.

Optionally, the jth threshold is less than the ith threshold. The jth threshold may be a next threshold less than the ith threshold, such as the i+1th threshold; the jth threshold may also be less than the ith threshold and have a corresponding jth group The most recent threshold of the beam; the jth threshold may also be any one of the thresholds less than the i-th threshold. This embodiment of the present application does not limit this.

For example, the terminal acquires four threshold values th1>th2>th3>th4, which respectively correspond to weight factors fa1, fa2, fa3, and fa4, where fa1+fa2+fa3+fa4=1. If the signal quality of any one of the beams is greater than th1, the signal quality of beam 1 and beam 2 is greater than th2, and the signal quality of beam 1, beam 2, and beam 3 is greater than th3, and beam 1, beam 2, beam 3, and beam are present. 4 and the signal quality of beam 5 is greater than th4, then the cell signal quality of the cell is calculated as:

Average of the signal quality of beams 1 and 2 * fa1 + average of the signal qualities of beams 1 and 2 * fa + average of the signal qualities of beams 1 to 3 * fa3 + average of the signal qualities of beams 1 to 5 * fa4.

In an alternative embodiment based on FIG. 6, for the ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold and the signal quality reaches the jth threshold When the j group beam is used, the preset reference signal quality is determined as the signal quality component corresponding to the ith threshold, and i is an integer less than or equal to n.

Optionally, each of the n threshold values corresponds to a respective preset reference signal quality; or, at least two of the n threshold values correspond to different preset reference signal qualities; or Each of the n thresholds shares the same preset reference signal quality.

For example, the terminal acquires three thresholds th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. The three thresholds also correspond to respective preset reference signal qualities sq1, sq2, and sq3. Sq1>sq2>sq3, that is, any two of the three preset reference signal qualities are different.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2, and the signal quality of the y third beams is greater than th3, the cell signal quality of the cell is calculated as:

Sq1*fa1+sq2*fa2+ The average value of the signal quality of the third beam *fa3.

For another example, the terminal acquires three threshold values th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. Wherein, th1 corresponds to a preset reference signal quality sq1, and th2 and th3 correspond to a preset reference signal quality sq2. Among them, sq1>sq2.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2, and the signal quality of the x third beams is greater than th3, the cell signal quality of the cell is calculated as:

The average value of the signal quality of sq1*fa1+sq2*fa2+x third beams*fa3.

For another example, the terminal acquires three threshold values th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. The three thresholds correspond to the same preset reference signal quality sqx.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2, and the signal quality of the x third beams is greater than th3, the cell signal quality of the cell is calculated as:

The average value of the signal quality of sqx*fa1+sqx*fa2+x third beams*fa3.

In another optional embodiment, each of the n threshold values shares the same predetermined reference signal quality, the predetermined reference signal quality being zero.

For example, the terminal acquires three thresholds th1>th2>th3, which respectively correspond to weighting factors fa1, fa2, and fa3, where fa1+fa2+fa3=1. The three thresholds correspond to the same preset reference signal quality of zero.

If the signal quality of any one of the beams is greater than th1, and the signal quality of any one of the beams is greater than th2, and the signal quality of the x third beams is greater than th3, the cell signal quality of the cell is calculated as:

The average value of the signal quality of the x third beams *fa3.

Please refer to FIG. 7, which shows a flowchart of a cell signal quality determining method provided by another exemplary embodiment of the present application. This embodiment is exemplified by applying the method to the mobile communication system shown in FIG. 1. The method includes:

Step 701: The access network device determines n threshold values and a weighting factor corresponding to each threshold value.

Alternatively, n threshold values are thresholds for signal quality evaluation according to beam granularity.

Optionally, n threshold values are signal quality thresholds for cell reselection.

Step 702: The access network device sends, to the terminal, n threshold values and a weighting factor corresponding to each threshold value;

The n threshold value and the weight factor corresponding to each threshold value are used as parameters when the terminal determines the cell signal quality;

Optionally, the access network device sends system information (SI) to the terminal, where the system information carries n threshold values and a weighting factor corresponding to each threshold value.

Optionally, the system information includes an SSB, and the SSB includes a PSS, an SSS, and a PBCH. The n threshold values and the weight factors corresponding to each threshold value are carried in the agreed position of the SSB.

Step 703: The terminal receives n threshold values and a weighting factor corresponding to each threshold value.

Optionally, the terminal receives the system information, and obtains n threshold values and weight factors corresponding to each threshold value from the system information.

Step 704: The terminal measures signal quality of m beams belonging to the same cell, where the cell includes a serving cell and a neighboring cell.

Optionally, the terminal further obtains related information of the neighboring cell, including related information of the same-frequency neighboring cell, related information of the inter-frequency neighboring cell, and related information of the non-NR cell, such as related information of the LTE cell.

The terminal measures the signal quality of the beam corresponding to the serving cell and/or the neighboring cell. Optionally, m beams refer to beams that belong to the same cell and can be measured by the terminal. Since the number of beams that the terminal can measure is the same or different for different cells, the values of m of different cells are the same or different, depending on the actual receiving situation of the terminal.

Optionally, the serving cell and the neighboring cell may have a conventional cell that does not use a beam. The terminal may use the prior art to measure the cell signal quality of the conventional cell. This application does not apply to the terminal to measure the cell signal quality of the conventional cell. limited.

Step 705: The terminal determines a cell signal quality of the cell according to a signal quality, a threshold value, and a weighting factor of each beam.

For each beam of the same cell, the terminal determines the cell signal quality of the cell according to the signal quality of each beam, n threshold values, and a weighting factor.

For the determination process, reference may be made to the details of any one of the foregoing method embodiments, and details are not described in this embodiment.

Step 706: The terminal performs cell reselection according to the cell signal quality of the serving cell and the cell signal quality of the neighboring cell.

The terminal may perform cell reselection according to the cell signal quality of the serving cell and the cell signal quality of the neighboring cell.

Illustratively, when the cell signal quality of the neighboring cell is better than the cell signal quality of the serving cell, the terminal reselects the neighboring cell as a new serving cell and re-resident to the neighboring cell.

Illustratively, when the cell signal quality of the neighboring cell is better than the cell signal quality of the serving cell, and the duration of the camping in the serving cell reaches a preset duration (for example, 1 second), the neighboring cell is reselected as a new one. The serving cell and re-resident to the neighboring cell.

In summary, the cell reselection method provided by this embodiment can comprehensively evaluate the signal quality of m beams of the same cell, combined with n threshold values and weight factors, and can adopt signal quality pairs of multiple beams. The cell signal quality of the same cell is relatively accurately evaluated and characterized. It can solve the problem of how to judge the cell signal quality of a cell using multiple beams, and achieve a more accurate quantization effect by using multiple beams. .

The steps performed by the terminal in the foregoing method embodiments may be separately implemented as a cell signal quality determining method on the terminal side, and the steps performed by the access network device may be separately implemented as a cell signal quality determining method on the access network device side.

The following is a device embodiment of the present application. Since the device embodiment has a corresponding relationship with the method embodiment, the technical details not described in the device embodiment may refer to the corresponding description in the foregoing method embodiments.

Please refer to FIG. 8, which shows a block diagram of a cell signal quality determining apparatus provided by an exemplary embodiment of the present application. The device can be implemented as all or part of the terminal by software, hardware or a combination of both. The device includes:

The receiving module 820 is configured to receive n threshold values and a weighting factor corresponding to each of the threshold values;

The processing module 840 is configured to measure signal quality of m beams that belong to the same cell.

The processing module 840 is further configured to determine a cell signal quality of the cell according to a signal quality of each of the beams, the n thresholds, and the weighting factor;

Wherein m and n are both integers and n is greater than 1.

In an optional embodiment, the processing module 840 is further configured to: according to a signal quality of each of the beams, a maximum threshold value reached by a signal quality of each of the beams, and a maximum threshold value. The weighting factor determines a cell signal quality of the cell.

In an optional embodiment, the processing module 840 is further configured to calculate, for the kth threshold value of the n threshold values, the kth group whose signal quality reaches a maximum of the kth threshold value. An average value of signal qualities of the beam, the average value being determined as a signal quality component corresponding to the kth threshold value, and k is an integer less than or equal to n;

And determining, by the weighted sum of the signal quality component and the weighting factor corresponding to each of the n threshold values, a cell signal quality of the cell.

In an optional embodiment, the processing module 840 is further configured to: for the ith threshold of the n thresholds, if there is no beam with the signal quality reaching the ith threshold And when there is a j-th beam whose signal quality reaches the j-th threshold, the average value of the signal quality of the j-th beam is determined as the signal corresponding to the ith threshold. Mass component

The jth threshold is less than the ith threshold, and i and j are integers smaller than n.

In an optional embodiment, the processing module 840 is further configured to: for the ith threshold of the n thresholds, if there is no beam with the signal quality reaching the ith threshold And determining a preset reference signal quality as a signal quality component corresponding to the ith threshold, and i is an integer less than or equal to n.

In an optional embodiment, the processing module 840 is further configured to: according to a signal quality of each of the beams, a threshold value reached by a signal quality of each of the beams, and the threshold corresponding to the threshold A weighting factor determining a cell signal quality of the cell.

In an optional embodiment, the processing module 840 is further configured to calculate, for the kth threshold value of the n threshold values, the kth group beam whose signal quality reaches the kth threshold value. An average value of the signal quality, the average value is determined as a signal quality component corresponding to the kth threshold value, and k is an integer less than or equal to n;

And determining, by the weighted sum of the signal quality component and the weighting factor corresponding to each of the n threshold values, a cell signal quality of the cell.

In an optional embodiment, the processing module 840 is further configured to: for an ith threshold of the n thresholds, if there is no beam with the signal quality reaching the ith threshold When there is a jth group beam whose signal quality reaches the jth threshold value, an average value of the signal quality of the jth group beam is determined, and the average value is determined as a signal quality component corresponding to the ith threshold value. ;

The jth threshold is less than the ith threshold, and i and j are integers smaller than n.

In an optional embodiment, the processing module 840 is further configured to: for an ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold, Then, the preset reference signal quality is determined as a signal quality component corresponding to the ith threshold, and i is an integer less than or equal to n.

In an optional embodiment, each of the n threshold values corresponds to a respective preset reference signal quality; or, at least two threshold values of the n threshold values correspond to Different preset reference signal qualities; or each of the n threshold values shares the same preset reference signal quality.

In an optional embodiment, the sum of the weight factors corresponding to the n threshold values is 1.

In an optional embodiment, the receiving module 820 is configured to receive system information, and the processing module 840 is further configured to obtain the n threshold values and each of the gates from the system information. The weight factor corresponding to the limit.

In an optional embodiment, the cell includes a serving cell where the terminal camps, and a neighboring cell of the serving cell;

The processing module 840 is further configured to perform cell reselection according to a cell signal quality of the serving cell and a cell signal quality of the neighboring cell.

Please refer to FIG. 9, which shows a block diagram of a cell signal quality determining apparatus provided by an exemplary embodiment of the present application. The device can be implemented as all or part of the terminal by software, hardware or a combination of both. The device includes:

The processing module 920 is configured to determine n threshold values and weight factors corresponding to each of the threshold values;

a sending module 940, configured to send, to the terminal, the n threshold values and a weighting factor corresponding to each of the threshold values, where the n threshold values and a weighting factor corresponding to each of the threshold values are used a parameter when the terminal determines a cell signal quality;

Where n is an integer greater than one.

In an optional embodiment, the sending module 940 is configured to send, by the access network device, system information to the terminal, where the system information carries the n threshold values and each of the doors The weight factor corresponding to the limit.

In an optional embodiment, the sum of the weight factors corresponding to the n threshold values is 1.

Please refer to FIG. 10 , which is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application. The terminal includes: a processor 101 , a receiver 102 , a transmitter 103 , a memory 104 , and a bus 105 .

The processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.

The receiver 102 and the transmitter 103 can be implemented as a communication component, which can be a communication chip.

The memory 104 is coupled to the processor 101 via a bus 105.

The memory 104 is operative to store at least one instruction, and the processor 101 is configured to execute the at least one instruction to implement various steps performed by the terminal in the above method embodiment.

Moreover, memory 104 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, including, but not limited to, a magnetic or optical disk, electrically erasable and programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Anytime Access Memory (SRAM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Programmable Read Only Memory (PROM) .

Please refer to FIG. 11 , which is a schematic structural diagram of an access network device provided by an exemplary embodiment of the present application. The access network device includes: a processor 111 , a receiver 112 , a transmitter 113 , a memory 114 , and a bus 115 . .

The processor 111 includes one or more processing cores, and the processor 111 executes various functional applications and information processing by running software programs and modules.

Receiver 112 and transmitter 113 can be implemented as a communication component, which can be a communication chip.

The memory 114 is coupled to the processor 111 via a bus 115.

The memory 114 can be used to store at least one instruction, and the processor 111 is configured to execute the at least one instruction to implement various steps performed by the access network device in the foregoing method embodiment.

Moreover, memory 114 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, including, but not limited to, a magnetic or optical disk, electrically erasable and programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Anytime Access Memory (SRAM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Programmable Read Only Memory (PROM) .

The present application provides a computer readable storage medium, where the storage medium stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement a cell signal quality determining method provided by each of the foregoing method embodiments. .

The present application also provides a computer program product that, when executed on a computer, causes the computer to perform the cell signal quality determination method provided by the various method embodiments described above.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are included in the protection of the present application. Within the scope.

Claims (37)

A cell signal quality determining method, the method comprising: The terminal receives n threshold values and a weighting factor corresponding to each of the threshold values; The terminal measures signal quality of m beams belonging to the same cell; Determining, by the terminal, a cell signal quality of the cell according to a signal quality of each of the beams, the n thresholds, and the weighting factor; Wherein m and n are both integers and n is greater than 1. The method according to claim 1, wherein the determining the cell signal quality of the cell according to the signal quality, the n threshold values, and the weighting factor of each of the beams comprises: Determining a cell signal quality of the cell according to a signal quality of each of the beams, a maximum threshold value reached by a signal quality of each of the beams, and the weighting factor corresponding to the maximum threshold value. The method according to claim 2, wherein the signal quality according to each of the beams, the maximum threshold value reached by the signal quality of each of the beams, and the corresponding maximum threshold value Determining a weighting factor, determining a cell signal quality of the cell, including: Calculating, by the kth threshold value of the n threshold values, an average value of signal quality of the kth group beam whose signal quality reaches the kth threshold value, determining the average value as a signal quality component corresponding to the kth threshold value, where k is an integer less than or equal to n; And determining, by the weighted sum of the signal quality components corresponding to the n threshold values and the weighting factors, the cell signal quality of the cell. The method of claim 3, wherein the method further comprises: For the ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold, and the signal quality reaches the jth threshold When the beam is grouped, an average value of the signal quality of the jth group beam is calculated, and the average value is determined as a signal quality component corresponding to the ith threshold value; The jth threshold is less than the ith threshold, and i and j are integers smaller than n. The method of claim 3, wherein the method further comprises: For the ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold, the preset reference signal quality is determined as the ith threshold The signal quality component corresponding to the value, i is an integer less than or equal to n. The method according to claim 1, wherein the determining the cell signal quality of the cell according to the signal quality, the n threshold values, and the weighting factor of each of the beams comprises: Determining a cell signal quality of the cell according to a signal quality of each of the beams, a threshold value reached by a signal quality of each of the beams, and the weighting factor corresponding to the threshold. The method according to claim 6, wherein said threshold according to a signal quality of each of said beams, a threshold value reached by a signal quality of said each beam, and said threshold value a factor determining a cell signal quality of the cell, including: Calculating, by the kth threshold value of the n threshold values, an average value of signal qualities of the kth group of beams whose signal quality reaches the kth threshold value, determining the average value as the a signal quality component corresponding to the kth threshold value, and k is an integer less than or equal to n; And determining, by the weighted sum of the signal quality components corresponding to the n threshold values and the weighting factors, the cell signal quality of the cell. The method of claim 7, wherein the method further comprises: For the ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold and the jth beam whose signal quality reaches the jth threshold And determining an average value of the signal quality of the jth group beam, and determining the average value as a signal quality component corresponding to the ith threshold value; The jth threshold is less than the ith threshold, and i and j are integers smaller than n. The method of claim 7, wherein the method further comprises: For the ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold, the preset reference signal quality is determined as the ith threshold Corresponding signal quality component, i is an integer less than or equal to n. Method according to claim 5 or 9, characterized in that Each of the n threshold values corresponds to a respective preset reference signal quality; or, At least two threshold values of the n threshold values correspond to different preset reference signal qualities; or, Each of the n threshold values shares the same predetermined reference signal quality. The method according to any one of claims 1 to 9, characterized in that the sum of the weight factors corresponding to the n threshold values is one. A method according to any one of claims 1 to 9, wherein Receiving system information by the terminal; The terminal acquires, from the system information, the n threshold values and a weighting factor corresponding to each of the threshold values. The method according to any one of claims 1 to 9, wherein the cell comprises a serving cell where the terminal camps, and a neighboring cell of the serving cell; The method further includes: Cell reselection is performed according to the cell signal quality of the serving cell and the cell signal quality of the neighboring cell. A cell signal quality determining method, the method comprising: The access network device determines n threshold values and a weighting factor corresponding to each of the threshold values; The access network device sends, to the terminal, the n threshold values and a weighting factor corresponding to each of the threshold values, where the n threshold values and a weighting factor corresponding to each of the threshold values are used a parameter when the terminal determines a cell signal quality; Where n is an integer greater than one. The method according to claim 14, wherein the access network device sends the n threshold values and weight factors corresponding to each of the threshold values to the terminal, including: The access network device sends system information to the terminal, where the system information carries the n threshold values and a weighting factor corresponding to each of the threshold values. The method according to claim 14, wherein the sum of the weight factors corresponding to the n threshold values is one. A cell signal quality determining apparatus, characterized in that the apparatus comprises: a receiving module, configured to receive n threshold values and a weighting factor corresponding to each of the threshold values; a processing module, configured to measure signal quality of m beams belonging to the same cell; The processing module is further configured to determine a cell signal quality of the cell according to a signal quality of each of the beams, the n thresholds, and the weighting factor; Wherein m and n are both integers and n is greater than 1. The device of claim 17 wherein: The processing module is further configured to determine, according to a signal quality of each of the beams, a maximum threshold value reached by a signal quality of each of the beams, and the weighting factor corresponding to the maximum threshold value. Cell signal quality of the cell. The device of claim 18, wherein The processing module is further configured to calculate, for the kth threshold value of the n threshold values, an average value of signal quality of the kth group beam whose signal quality reaches the kth threshold value, Determining the average value as a signal quality component corresponding to the kth threshold value, and k is an integer less than or equal to n; And determining, by the weighted sum of the signal quality component corresponding to each of the n threshold values and the weighting factor, a cell signal quality of the cell. The device according to claim 19, characterized in that The processing module is further configured to: for an ith threshold of the n thresholds, if there is no beam with the signal quality reaching the ith threshold, and the signal quality is maximized When the jth beam of the jth threshold is used, the average value of the signal quality of the jth beam is determined, and the average value is determined as the signal quality component corresponding to the ith threshold; The jth threshold is less than the ith threshold, and i and j are integers smaller than n. The device of claim 20 wherein: The processing module is further configured to: for an ith threshold of the n thresholds, if there is no beam with the signal quality reaching the ith threshold, the reference signal quality is preset. The signal quality component corresponding to the ith threshold is determined, and i is an integer less than or equal to n. The device of claim 17 wherein: The processing module is further configured to determine, according to a signal quality of each of the beams, a threshold value reached by a signal quality of each of the beams, and the weighting factor corresponding to the threshold value, Cell signal quality. The device according to claim 22, wherein The processing module is further configured to calculate, for the kth threshold value of the n threshold values, an average value of signal quality of the kth group beam whose signal quality reaches the kth threshold value, The average value is determined as a signal quality component corresponding to the kth threshold value, and k is an integer less than or equal to n; And determining, by the weighted sum of the signal quality component corresponding to each of the n threshold values and the weighting factor, a cell signal quality of the cell. The device according to claim 23, wherein The processing module is further configured to: for an ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold, and the signal quality reaches the jth When the jth beam of the threshold value is used, the average value of the signal quality of the jth group beam is determined, and the average value is determined as the signal quality component corresponding to the ith threshold value; The jth threshold is less than the ith threshold, and i and j are integers smaller than n. The device according to claim 23, wherein The processing module is further configured to: for an ith threshold of the n thresholds, if there is no beam whose signal quality reaches the ith threshold, determine a preset reference signal quality For the signal quality component corresponding to the ith threshold, i is an integer less than or equal to n. A device according to claim 21 or 25, wherein Each of the n threshold values corresponds to a respective preset reference signal quality; or, At least two threshold values of the n threshold values correspond to different preset reference signal qualities; or, Each of the n threshold values shares the same predetermined reference signal quality. The apparatus according to any one of claims 17 to 25, characterized in that the sum of the weighting factors corresponding to the n threshold values is one. Apparatus according to any one of claims 17 to 25, wherein The receiving module is configured to receive system information; The processing module is further configured to obtain, from the system information, the n threshold values and a weighting factor corresponding to each of the threshold values. The apparatus according to any one of claims 17 to 25, wherein the cell comprises a serving cell where the terminal camps, and a neighboring cell of the serving cell; The processing module is further configured to perform cell reselection according to a cell signal quality of the serving cell and a cell signal quality of the neighboring cell. A cell signal quality determining apparatus, characterized in that the apparatus comprises: a processing module, configured to determine n threshold values and a weighting factor corresponding to each of the threshold values; a sending module, configured to send, to the terminal, the n threshold values and a weighting factor corresponding to each of the threshold values, where the n threshold values and a weighting factor corresponding to each of the threshold values are used as a parameter when the terminal determines a cell signal quality; Where n is an integer greater than one. The device of claim 30 wherein: The sending module is configured to send the system information to the terminal by the access network device, where the system information carries the n threshold values and a weighting factor corresponding to each of the threshold values. The apparatus according to claim 30, wherein the sum of the weight factors corresponding to the n threshold values is one. A terminal, comprising: a processor and a memory, the memory storing at least one instruction, the at least one instruction being used by the processor to implement any of the above claims 1 to 13 The cell signal quality determining method. An access network device, characterized in that the access network device comprises a processor and a memory, the memory storing at least one instruction for execution by the processor to implement the above claims The cell signal quality determining method of any one of 14 to 16. A computer readable storage medium, wherein the storage medium stores at least one instruction for execution by a processor to implement cell signal quality according to any one of claims 1 to 13 Determine the method. A computer readable storage medium, wherein the storage medium stores at least one instruction for execution by a processor to implement cell signal quality according to any one of claims 14 to 16 Determine the method. A communication system, characterized in that the system comprises: a terminal and an access network device; The terminal comprises the device according to any one of claims 17 to 29, the access network device comprising the device according to any one of claims 30 to 32; or; The terminal is the terminal according to claim 33, and the access network device is the access network device according to claim 34.

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