CN117528684A

CN117528684A - Mobile communication terminal selection switching method, system and storage medium

Info

Publication number: CN117528684A
Application number: CN202311605888.7A
Authority: CN
Inventors: 陈守益; 晏飞扬; 马磊; 吕巍; 何德浩; 刘静; 丁宇鹏; 彭坤彦; 陈浩
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2023-11-28
Filing date: 2023-11-28
Publication date: 2024-02-06

Abstract

The invention discloses a mobile communication terminal selection switching method, a system and a storage medium, which are applied to the technical field of communication, can realize autonomous selection switching of a service cell and improve the stability and reliability of the selection switching of the service cell. The method comprises the following steps: acquiring measurement control information issued by a main service cell; wherein the measurement control information comprises neighbor cell fault data and performance index data; measuring signal index data of the neighbor serving cell according to the measurement control information; calculating to obtain target neighbor cell information through a preset multi-target optimization algorithm according to the signal index data, the neighbor cell fault data and the performance index data; and feeding back the target neighbor cell information to the main service cell so as to trigger switching to a corresponding target service cell through the main service cell.

Description

Mobile communication terminal selection switching method, system and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a system, and a storage medium for selecting and switching a mobile communication terminal.

Background

In a mobile communication network, a mobile communication terminal needs to be handed over from one serving cell to another serving cell, which typically occurs when a mobile phone is used for making a call, surfing the internet, transmitting information, etc. In the related art, the serving cell is switched based on the 3GPP protocol, but the terminal often cannot autonomously select the best neighboring cell, for example, the switched neighboring cell may have strong signals, but there are problems of high interference and high load, which results in degradation of communication quality in some places or failure to enjoy the best network experience. Therefore, the above technical problems need to be solved.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present invention provides a mobile communication terminal selection switching method, system and storage medium, which can realize autonomous selection switching of a serving cell and improve stability and reliability of the serving cell selection switching.

In one aspect, an embodiment of the present invention provides a method for selectively switching a mobile communication terminal, including the following steps:

acquiring measurement control information issued by a main service cell; wherein the measurement control information comprises neighbor cell fault data and performance index data;

measuring signal index data of the neighbor serving cell according to the measurement control information;

calculating to obtain target neighbor cell information through a preset multi-target optimization algorithm according to the signal index data, the neighbor cell fault data and the performance index data;

and feeding back the target neighbor cell information to the main service cell so as to trigger switching to a corresponding target service cell through the main service cell.

According to some embodiments of the invention, the measured control information is determined by:

acquiring the neighbor cell fault data and the performance index data through a preset interface; the neighbor cell fault data comprise transmission error code data, standing-wave ratio alarm data and service capacity decline alarm data, and the performance index data comprise physical resource block utilization rate, interference noise floor and controller utilization rate;

Constructing a radio resource reconfiguration message;

and adding a preset measurement parameter information field to the wireless resource reconfiguration message according to the neighbor cell fault data and the performance index data, and constructing to obtain the measurement control information.

According to some embodiments of the invention, the obtaining the neighbor cell failure data and the performance index data through a preset interface includes:

adding preset bit information to a preset control signaling to construct an interface control signaling; the preset bit information comprises adjacent cell fault bits and interference bottom noise bits;

and acquiring the neighbor cell fault data and the performance index data through the interface control signaling.

According to some embodiments of the invention, the measuring signal index data of the neighbor serving cell according to the measurement control information includes:

and measuring the signal index of each neighbor serving cell according to the measurement control information to obtain corresponding reference signal received power data, reference signal received quality data and signal-to-noise ratio and interference ratio data.

According to some embodiments of the present invention, the calculating, according to the signal indicator data, the neighbor cell fault data, and the performance indicator data, by a preset multi-objective optimization algorithm, the target neighbor cell information includes:

Calculating weight data of each adjacent service cell by a weight coefficient method according to the signal index data, the adjacent cell fault data and the performance index data;

and determining the target neighbor cell information according to the weight data.

According to some embodiments of the invention, the determining the target neighbor information according to the weight data includes:

constructing a weight array, and storing the weight data into the weight array;

sorting the weight arrays according to the order from big to small, selecting M adjacent service cells which are in the front of the sorting order as the target service cells, or sorting the weight arrays according to the order from small to big, selecting M adjacent service cells which are in the back of the sorting order as the target service cells, wherein M is a positive integer;

and adding the corresponding information of the target service cell into a target neighbor set to obtain the target neighbor information.

According to some embodiments of the invention, the feeding back the target neighbor information to the primary serving cell to trigger handover to a corresponding target serving cell through the primary serving cell includes:

transmitting the target neighbor cell information to the main service cell through a preset measurement report; the preset measurement report comprises a physical cell identifier of the target service cell corresponding to the target neighbor cell information;

And selecting the target service cell with the largest weight data in the target neighbor cell set through the main service cell according to the physical cell identifier to switch.

On the other hand, the embodiment of the invention also provides a mobile communication terminal selection switching system, which comprises:

the first module is used for acquiring measurement control information issued by the main service cell; wherein the measurement control information comprises neighbor cell fault data and performance index data;

a second module, configured to measure signal indicator data of a neighboring serving cell according to the measurement control information;

the third module is used for calculating to obtain target neighbor cell information through a preset multi-target optimization algorithm according to the signal index data, the neighbor cell fault data and the performance index data;

and a fourth module, configured to feed back the target neighbor cell information to the primary serving cell, so as to trigger handover to a corresponding target serving cell through the primary serving cell.

at least one processor;

at least one memory for storing at least one program;

the at least one program, when executed by the at least one processor, causes the at least one processor to implement the mobile communication terminal selection handover method as described in the above embodiments.

On the other hand, the embodiment of the present invention also provides a computer storage medium in which a program executable by a processor is stored, the program executable by the processor being used to implement the mobile communication terminal selection handover method according to the above embodiment when executed by the processor.

The mobile communication terminal selection switching method, the system and the storage medium have the following advantages: according to the embodiment of the invention, the signal index data of the adjacent service cell is measured according to the measurement control information by acquiring the measurement control information issued by the main service cell. Correspondingly, in the embodiment of the invention, the measurement control information comprises neighbor cell fault data and performance index data. Then, according to the signal index data, the neighbor cell fault data and the performance index data, the target neighbor cell information is obtained through calculation through a preset multi-target optimization algorithm, and the target neighbor cell information is fed back to the main serving cell, so that the main serving cell triggers switching to the corresponding target serving cell, autonomous switching of the serving cell is achieved, and stability and reliability of switching of the serving cell selection are effectively improved. It is easy to understand that by combining the signal index data, the neighbor cell fault data and the performance index data, the embodiment of the invention performs calculation and analysis from multiple dimensions, thereby obtaining corresponding target neighbor cell information, effectively alleviating the problem of switching to a high-load base station fault cell, effectively improving the reliability and accuracy of target service cell selection, and further effectively improving the stability and reliability of service cell selection switching.

Drawings

Fig. 1 is a flowchart illustrating steps of a mobile communication terminal selection handover method according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a step of determining measurement control information according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of a step of acquiring neighbor cell failure data and performance index data through a preset interface according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating steps for measuring signal indicator data of a neighbor serving cell according to measurement control information according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating steps for obtaining target neighbor information by calculating a preset multi-target optimization algorithm according to signal index data, neighbor fault data and performance index data according to an embodiment of the present invention;

fig. 6 is a flowchart illustrating a step of determining target neighbor information according to weight data according to an embodiment of the present invention;

fig. 7 is a schematic flowchart of a step of feeding back target neighbor cell information to a primary serving cell to trigger handover to a corresponding target serving cell through the primary serving cell according to an embodiment of the present invention;

fig. 8 is a schematic diagram of an overall architecture of a mobile communication terminal selection handover method according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a mobile communication terminal selection switching system according to an embodiment of the present invention;

Fig. 10 is a schematic block diagram of a mobile communication terminal selection switching system according to an embodiment of the present invention.

Detailed Description

The embodiments described in the present application should not be construed as limitations on the present application, but rather as many other embodiments as possible without inventive faculty to those skilled in the art, are intended to be within the scope of the present application.

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

Before describing embodiments of the present application, related terms referred to in the present application will be first described.

Third generation partnership project (3rd Generation Partnership Project,3GPP) protocol: the method aims to realize smooth transition from a 2G network to a 3G network, ensure backward compatibility of future technologies, support roaming and compatibility between networks and systems, and mainly establishes specifications of third generation technology based on a GSM core network and with UTRA as a wireless interface.

Reference signal received power (Reference Signal Receiving Power, RSRP): is an indicator for measuring the downlink signal strength in a 4/5G network. It represents the power of the received downlink physical signal in dBm at the measurement time point.

Reference signal received quality (Reference Signal Receiving Quality, RSRQ): is an indicator for measuring the quality of downlink signals in a 4/5G network. It represents the quality of the received downstream physical signal in dB at the measurement time point.

Signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR): is an indicator in a 4/5G network for measuring the downlink signal interference plus noise ratio, i.e. the ratio of the received useful signal strength to the received interfering signal (noise and interference) strength. It represents the signal-to-noise ratio of the received downstream physical signal in dB at the measurement time point.

An Xn interface: is an interface for interconnection between two access networks in a 5G network, and is used for interconnection between next generation radio access network nodes (NG-RAN nodes).

Measurement report (Measurement report): is information for reporting measurement results in the 4/5G network. The measurement reports may include RSRP, RSRQ, SINR or like measurements for evaluating network coverage and quality, as well as for network optimization and tuning.

RRC reconfiguration message: is information for configuring and adjusting radio resources in the 4/5G network. It may include adjustments to transmission mode, frequency band, power, etc., as well as configuration of new cells and random access procedures, etc.

PRB utilization: is an indicator for measuring the downlink resource utilization in the 4/5G network. PRBs are physical resource blocks, which are basic resource units used for transmitting physical signals in a 4/5G network. The PRB utilization represents the ratio of the number of physical resource blocks actually transmitted to the number of available physical resource blocks.

CPU utilization: is an index of the degree of utilization of CPU resources in the CPU utilization communication base station apparatus. It may be expressed as the ratio of the actual CPU time used to the total CPU time available, or as the ratio of the CPU load to the maximum loadable load.

Transmission error code: refers to errors that occur during data transmission. It may refer to a bit or byte in the data packet received by the receiving end that is erroneous, or the data packet is lost or corrupted during transmission.

Standing wave ratio warning: the standing wave ratio is an index representing the degree of reflection of electromagnetic waves in a transmission line. When impedance mismatch exists in the transmission line, reflected waves are generated and superimposed with incident waves to form standing wave ratio. Standing wave ratio warning means that when the standing wave ratio exceeds a certain threshold, a warning is triggered to prompt that transmission problems possibly occur.

Service capability decline alert: a service capability degradation alarm refers to an alarm that is triggered when the service capability of a communication device or system reaches an upper limit. It may prompt operators to need optimized intervention on devices or systems to meet increasing network demands.

Interference bottom noise: in a wireless communication system, due to the existence of various interference signals, a signal received by a receiving end contains some useless noise signals besides a required signal. The size of the interference noise floor directly affects the performance and quality of the communication system, and measurement and evaluation are needed.

Based on this, an embodiment of the present invention provides a mobile communication terminal selection switching method, system and storage medium, which can implement autonomous selection switching of a serving cell and improve stability and reliability of the serving cell selection switching. Referring to fig. 1, the method of the embodiment of the present invention includes, but is not limited to, step S110, step S120, step S130, and step S140.

Specifically, the method application process of the embodiment of the invention includes, but is not limited to, the following steps:

s110: and acquiring measurement control information issued by the main service cell. The measurement control information comprises neighbor cell fault data and performance index data.

S120: and measuring signal index data of the neighbor serving cell according to the measurement control information.

S130: and calculating to obtain target neighbor cell information through a preset multi-target optimization algorithm according to the signal index data, the neighbor cell fault data and the performance index data.

S140: and feeding back the target neighbor cell information to the main service cell so as to trigger switching to the corresponding target service cell through the main service cell.

In the working process of the specific embodiment, the embodiment of the invention firstly obtains the measurement control information issued by the main service cell. Specifically, in the embodiment of the present invention, the primary serving cell refers to a base station serving cell to which the mobile communication terminal is currently connected, and provides main communication service and data transmission through the primary serving cell. Correspondingly, the measurement control information in the embodiment of the invention comprises neighbor cell fault data and performance index data. In the embodiment of the present invention, the neighbor cell failure data refers to failure data information of each neighbor serving cell, such as error code information, service capability information, and the like. In addition, the performance index data in the embodiment of the invention refers to performance index information of each neighbor cell, such as signal strength, CPU utilization, and the like. When a signal of a main service cell is weakened and a new service cell needs to be switched, the embodiment of the invention firstly acquires corresponding neighbor cell fault data and performance index data through the main service cell, and transmits measurement control information carrying the neighbor cell fault data and the performance index data to a mobile communication terminal. Next, the embodiment of the invention measures the signal index data of the neighbor serving cell according to the measurement control information. Specifically, in the embodiment of the present invention, the neighbor serving cell refers to other surrounding base stations or cells, which are adjacent to the primary serving cell and can provide auxiliary communication services, for example, the mobile communication terminal performs handover with the neighbor serving cell in the moving process, so as to maintain the continuity and stability of communication. In addition, in the embodiment of the present invention, the signal index data refers to corresponding neighbor cell measurement report parameters, such as reference received power data (RSRP), signal to noise ratio, and the like. Correspondingly, when the mobile communication terminal receives the measurement control information issued by the main service cell, the mobile communication terminal of the embodiment of the invention detects the signal index data of each adjacent service cell according to the measurement control information.

Further, according to the embodiment of the invention, the target neighbor cell information is obtained by calculating through a preset multi-target optimization algorithm according to the signal index data, the neighbor cell fault data and the performance index data. Specifically, in the embodiment of the present invention, the preset multi-objective optimization algorithm refers to an algorithm for searching an optimal objective from multiple dimensions, such as a genetic algorithm, a simulated annealing algorithm, a weight coefficient method, and the like. After signal index data of each neighbor service cell is obtained through measurement, the embodiment of the invention combines neighbor cell fault data and performance index data carried in measurement control information, and analysis is carried out through a preset multi-target optimization algorithm, so that target neighbor cell information is determined. Finally, the embodiment of the invention feeds back the target neighbor cell information to the main service cell so as to trigger switching to the corresponding target service cell through the main service cell. Specifically, after the mobile communication terminal determines the corresponding target neighbor cell information, the mobile communication terminal feeds back the corresponding target neighbor cell information to the main serving cell. Correspondingly, the main service cell triggers switching to the corresponding target service cell after receiving the target neighbor cell information. In the embodiment of the invention, the target service cell corresponds to the target neighbor cell information. It is easy to understand that the embodiment of the invention analyzes the neighbor serving cells from multiple dimensions by combining the signal index data, the neighbor fault data and the performance index data, so that the states of all neighbor serving cells can be comprehensively considered, the reliability and the accuracy of target serving cell selection are effectively improved, and the stability and the reliability of serving cell selection switching are effectively improved while autonomous selection of the serving cell is realized. In addition, the embodiment of the invention can also relieve the problem of switching to a high-load base station fault cell.

Referring to fig. 2, in some embodiments of the present invention, determining measurement control information includes, but is not limited to, the steps of:

s210: and acquiring neighbor cell fault data and the performance index data through a preset interface. The neighbor cell fault data comprise transmission error code data, standing-wave ratio alarm data and service capacity decline alarm data, and the performance index data comprise physical resource block utilization rate, interference noise floor and controller utilization rate.

S220: and constructing a radio resource reconfiguration message.

S230: and adding a preset measurement parameter information field to the wireless resource reconfiguration message according to the neighbor cell fault data and the performance index data, and constructing to obtain measurement control information.

In this embodiment, the embodiment of the present invention first obtains neighboring cell failure data and performance index data through a preset interface. Specifically, in the embodiment of the present invention, the preset interface refers to an interconnection interface, such as an Xn interface, to be accessed to the network. Correspondingly, the neighbor cell fault data obtained in the embodiment of the invention comprises transmission error code data, standing-wave ratio alarm data and service capacity decline alarm data. In addition, the performance index data in the embodiment of the invention comprises the utilization rate of Physical Resource Blocks (PRB), interference noise floor and the utilization rate of a Controller (CPU). Illustratively, in the embodiment of the present invention, the primary serving cell obtains corresponding transmission error code data, standing-wave ratio alarm data, service capability degradation alarm data, physical Resource Block (PRB) utilization, interference noise floor, and Controller (CPU) utilization through the Xn interface. Then, the embodiment of the invention constructs a wireless resource reconfiguration message, and adds a preset measurement parameter information field to the wireless resource reconfiguration message according to the neighbor cell fault data and the performance index data, thereby constructing and obtaining corresponding measurement control information. Specifically, the radio resource reconfiguration message, i.e., the RRC reconfiguration message in the embodiment of the present invention is information for configuring and adjusting radio resources. In the embodiment of the invention, the measurement control information is constructed by adding the preset measurement parameter information fields corresponding to the neighbor cell fault data and the performance index data in the RRC reconfiguration message. Illustratively, the embodiment of the invention informs the mobile communication terminal to measure the signal index data corresponding to the adjacent service cell frequency point through the measurement control information transmitted on the dedicated control channel (Dedicated Control Channel, DCCH). Meanwhile, in the embodiment of the invention, the main service cell transmits neighbor state information, namely neighbor fault data and performance index data, through measurement control information. In the embodiment of the present invention, the 3gpp 5g protocol 38.331 is adjusted to involve RRC reconfiguration signaling, and a measparamto toaddmodlist field, that is, a preset measurement parameter information field, is added in the RRC reconfiguration signaling, that is, a radio resource reconfiguration message, so as to describe conditions of various parameter indexes, thereby constructing and obtaining measurement control information. For example, the field content added in the embodiment of the present invention includes a parameter name and a corresponding description.

Referring to fig. 3, in some embodiments of the present invention, neighbor cell failure data and performance index data are obtained through a preset interface, including but not limited to the following steps:

s310: and adding preset bit information to the preset control signaling to construct an interface control signaling. The preset bit information comprises adjacent cell fault bits and interference bottom noise bits.

S320: and acquiring neighbor fault data and performance index data through interface control signaling.

In this embodiment, the embodiment of the present invention first increases the preset control signaling with preset bit information to construct an interface control signaling, and further obtains corresponding neighbor cell failure data and performance index data through the interface control signaling. Specifically, the preset control signaling in the embodiment of the present invention refers to control signaling in wireless communication, such as resource status request signaling (RESOURCE STATUS REQUEST). The embodiment of the invention increases the corresponding adjacent cell fault bit and the interference base noise bit on the basis of the preset control signaling, thereby constructing and obtaining the corresponding interface control signaling. Then, the embodiment of the invention acquires the corresponding neighbor cell fault data and performance index data of each neighbor service cell through the interface control signaling obtained by construction. Exemplary, the preset control signaling in the embodiment of the present invention includes a resource status request signaling, and the interface control signaling is constructed by adding preset bit information to the resource status request signaling. It is easy to understand that according to the existing 3GPP protocol 3GPP ts38.423, the Xn interface already supports obtaining information such as Physical Resource Block (PRB) utilization, CPU utilization, neighbor bandwidth of the neighbor serving cell through the Xn-AP, but cannot obtain transmission error codes, standing-wave ratio alarms, service capability degradation alarms, and interference floor noise. Accordingly, the embodiment of the invention adds the sixth bit (neighbor cell failure bit) and the seventh bit (interference-to-bottom-noise ratio bit) in the description of the protocol 3GPP TS38.423 resource status request signaling (RESOURCE STATUS REQUEST). In addition, according to the corresponding 3GPP protocol, such as 3GPP TS38.423 V16.15.0 protocol, when the measurement is started, the reporting property (Reporting Characteristics) Information Element (IE) in the resource status request signaling indicates the type of object for which the next generation radio access network (NG-RAN) node 2 should perform the measurement operation. In the embodiment of the present invention, the reporting property IE is a 32-bit bitmap, and each position indicates a measurement object that should be reported by the next generation radio access network node 2, that is, each position in the bitmap indicates a measurement object that requires to be reported by the next generation radio access network node 2, and the total number of the positions is 32. Accordingly, the first bit is a PRB periodicity measurement, the second bit is a TNL capacity indication periodicity measurement, the third bit is an available composite capacity periodicity measurement, the fourth bit is the number of active UEs, the fifth bit is an RRC connection, and other bits should be ignored by the next generation radio access network node 2.

Referring to fig. 4 in conjunction with fig. 1, in some embodiments of the present invention, signal indicator data of neighbor serving cells is measured according to measurement control information, including, but not limited to, the following steps:

s410: and measuring the signal index of each neighbor serving cell according to the measurement control information to obtain corresponding reference signal received power data, reference signal received quality data and signal-to-noise ratio and interference ratio data.

In this embodiment, the signal indicator data measured by the embodiment of the present invention includes reference signal received power data (RSRP), reference signal received quality data (RSRQ), and signal-to-noise ratio and interference ratio data (SINR). Specifically, the embodiment of the invention measures the signal index of each adjacent service cell according to the measurement control information issued by the main service cell. After receiving the measurement control information, the mobile communication terminal measures the signal index related to each neighbor serving cell according to the indication of the measurement control information, thereby obtaining corresponding information such as reference signal received power data (RSRP), reference signal received quality data (RSRQ), signal-to-noise ratio and interference ratio data (SINR), and the like. According to the embodiment of the invention, the mobile communication terminal acquires the related signal indexes of the neighbor cells, so that the neighbor cells are further analyzed from multiple dimensions, the residence autonomous selection of the mobile communication terminal can be realized, the mode that the current network stage is completely controlled by the base station is changed, the mobile communication terminal performs autonomous analysis according to the acquired information such as reference signal received power data (RSRP), reference signal received quality data (RSRQ), signal-to-noise ratio and interference ratio data (SINR) of each neighbor cell, and the target neighbor cell information is determined and then fed back to the main serving cell to trigger switching.

Referring to fig. 5, in some embodiments of the present invention, target neighbor information is calculated by a preset multi-target optimization algorithm according to signal index data, neighbor fault data and performance index data, including, but not limited to, the following steps:

s510: and calculating the weight data of each neighbor service cell by a weight coefficient method according to the signal index data, the neighbor cell fault data and the performance index data.

S520: and determining target neighbor cell information according to the weight data.

In this embodiment of the present invention, according to the neighbor cell failure data and performance index data carried in the measurement control information, the weight data of each neighbor cell is calculated by combining the measured signal index data of each neighbor cell through a weight coefficient method in a multi-objective optimization algorithm, such as arg max (ncell) weighting calculation. Specifically, in the embodiment of the invention, the mobile communication terminal performs total weight calculation on transmission error code data, standing-wave ratio alarm data, service capacity decline alarm data, physical resource block utilization rate, interference noise floor, controller utilization rate, reference signal receiving power data, reference signal receiving quality data and signal-to-noise ratio and interference ratio data of each neighbor cell to obtain weight data of each neighbor cell, and further determines target neighbor cell information according to the corresponding weight data. The mobile communication terminal calculates the optimal neighbor cell by a weight coefficient method in a multi-objective optimization algorithm after acquiring the information such as the base station fault information, PRB utilization rate, interference noise floor, RRC user number, CPU utilization rate and the like of the neighbor serving cell. For example, when there are m neighbor cells, n evaluation dimensions, each of which has a weight coefficient of k _n ，d _in Representing neighbor i in the nth evaluation dimensionThe total weight of each neighbor cell, namely the calculation formula of the weight data is shown as the following formula (1):

then, the embodiment of the invention determines corresponding target neighbor cell information according to the calculated weight data of each neighbor cell. Specifically, in the embodiment of the present invention, the target neighbor cell information refers to information corresponding to a target serving cell, where the information includes an identifier of the target serving cell, such as a physical cell identifier (Physical Cell Identity, PCI), a cell global identifier (Cell Global Identity, CGI), a location area identifier (Location Area Identity, LAI), and the like. In addition, the target neighbor cell information in the embodiment of the invention can also comprise signal index data, neighbor cell fault data and performance index data corresponding to the target service cell. It is easy to understand that, in the embodiment of the present invention, the weight data of each neighboring serving cell obtained by calculation is used as a selection criterion to determine the target serving cell. For example, when the weight data of the neighbor serving cell is higher, the performance of the neighbor serving cell is better, i.e. the mobile communication terminal is more suitable for handover. Otherwise, when the weight data of the neighbor service cell is lower, the performance of the neighbor service cell is poorer, and the neighbor service cell is not suitable for switching. For example, in the embodiment of the present invention, the calculation formula for selecting the optimal neighbor cell, i.e., the target serving cell, is shown in the following formula (2):

It should be noted that, in the embodiment of the present invention, the largest neighbor serving cell in the weight data may be selected as the target serving cell. In addition, the embodiment of the invention can also be used for comparing the weight data of each adjacent service cell with the preset weight threshold value to screen the adjacent service cells meeting the preset weight threshold value, and the adjacent service cells are used as target service cells, so that corresponding target adjacent cell information is obtained. It is easy to understand that, in the embodiment of the present invention, the preset weight threshold may be set in a user-defined manner, and when the weight data of the neighboring serving cell is greater than the preset weight threshold, it indicates that the neighboring serving cell meets the conditions of communication and handover, so that the neighboring serving cell may be used as a candidate target serving cell.

Referring to fig. 6, in some embodiments of the present invention, the target neighbor information is determined according to weight data, including, but not limited to, the following steps:

s610: and constructing a weight array, and storing the weight data into the weight array.

S620: and sorting the weight arrays according to the order from big to small, selecting M adjacent service cells which are in the front of the sorting order as target service cells, or sorting the weight arrays according to the order from small to big, selecting M adjacent service cells which are in the back of the sorting order as target service cells, wherein M is a positive integer.

S630: and adding the corresponding information of the target service cell into the target neighbor set to obtain the target neighbor information.

In this embodiment, the embodiment of the present invention determines the corresponding target neighbor information by constructing the weight array and ordering the weight data in the weight array. Specifically, the embodiment of the invention firstly initializes the optimal neighbor set, namely the target neighbor set, and constructs a weight array, so as to store the calculated weight data of each neighbor service cell into the weight array through the weight array. Next, the embodiment of the invention sorts the weight arrays. Specifically, the embodiment of the invention sorts all neighbor cells in the weight array according to the weight data corresponding to the neighbor cells so as to screen out corresponding target cells. For example, in the embodiment of the invention, each neighbor serving cell in the weight array is ranked from large to small according to the corresponding weight data, and the M neighbor serving cells ranked at the forefront are selected as target serving cells. Or, the embodiment of the invention sorts all adjacent service cells in the weight array according to the corresponding weight data from small to large, and selects M adjacent service cells with the rearmost sorting as target service cells. It is easy to understand that the number of target serving cells selected in the embodiment of the present invention may be set in a customized manner. For example, the embodiment of the invention can sort according to the weight data from large to small, and select the neighbor serving cell with the highest ranking as the target serving cell, i.e. select the neighbor serving cell with the highest weight data as the target serving cell. Or, the embodiment of the invention can also sort according to the weight data from large to small, and select 3 neighbor cells which are in the forefront of the sorting as the target cells, wherein the 3 target cells are cells with better performance in a plurality of neighbor cells, can meet the communication and switching requirements of the mobile communication terminal, and can select one for switching. Further, the embodiment of the invention adds the information corresponding to the selected target service cell into the target neighbor set, thereby obtaining the corresponding target neighbor information. For example, after screening to obtain a corresponding target serving cell, the embodiment of the invention adds information corresponding to the target serving cell, such as identification information, to the target neighbor set, thereby constructing and obtaining target neighbor information.

Referring to fig. 7, in some embodiments of the present invention, target neighbor information is fed back to a primary serving cell to trigger handover to a corresponding target serving cell by the primary serving cell, including, but not limited to, the steps of:

s710: and sending the target neighbor cell information to the main service cell through a preset measurement report. The preset measurement report comprises a physical cell identifier of a target service cell corresponding to the target neighbor cell information.

S720: and selecting a target service cell with the largest weight data in the target neighbor cell set through the main service cell according to the physical cell identification to switch.

In this embodiment, the embodiment of the present invention sends the target neighbor cell information to the primary serving cell through a preset measurement report. Specifically, the preset measurement report in the embodiment of the present invention refers to a message, such as Measurement report information, for reporting a measurement result. Correspondingly, in the embodiment of the invention, the preset measurement report includes the physical cell identifier (Physical Cell Identity, PCI) of the target serving cell corresponding to the target neighbor cell information. In the embodiment of the invention, the physical cell identifier is a parameter used for identifying the physical cell in the wireless communication system, and different cells can be distinguished. In the embodiment of the invention, after the mobile communication terminal screens to obtain the corresponding target neighbor cell information, the corresponding target neighbor cell information is fed back to the main service cell in the form of physical cell identification (Physical Cell Identity, PCI) through Measurement report information. Further, the embodiment of the invention selects the target service cell with the largest weight data in the target neighbor cell set for switching through the main service cell according to the physical cell identification. Specifically, in the embodiment of the invention, the neighbor serving cell with the largest weight data is used as the target serving cell for switching. After receiving a preset measurement report fed back by the mobile communication terminal, the main service cell selects the neighbor service cell with the largest weight data as the service cell for final switching according to the corresponding physical cell identifier, and triggers switching to the service cell, thereby effectively improving the stability and reliability of service cell selection switching.

Taking a service cell switching application scenario as an example, referring to fig. 8, fig. 8 is a schematic diagram of an overall architecture of a mobile communication terminal selection switching method according to an embodiment of the present invention. The embodiment of the invention discloses intelligent switching of a low-speed network security scene terminal for a connected mobile communication terminal, and relates to mobile communication wireless equipment of a terminal and a base station, wherein the mobile communication wireless equipment comprises an Xn interface and a Uu interface. Specifically, when the signal of the cell where the mobile communication terminal resides becomes weaker or the load reaches a certain condition, the base station triggers the corresponding mobile communication terminal to select a switching process. The mobile communication terminal reports measurement report information, including reference signal received power data (RSRP), reference signal received quality data (RSRQ) and signal-to-noise ratio and interference ratio data (SINR) information of the serving cell and the neighboring cell. For example, the reported measurement report has a Physical Cell Identifier (PCI) of 322, a physical cell identifier of 422, rsrp of 41, rsrq of 51, and sinr of 35 for the neighbor serving cell. Meanwhile, in the embodiment of the invention, the main service cell acquires neighbor fault data (transmission error code data, standing wave ratio alarm data and service capacity decline alarm data) and performance index data (physical resource block utilization rate, interference noise floor and controller utilization rate) through an Xn interface. Next, the embodiment of the present invention informs the mobile terminal to measure reference signal received power data (RSRP), reference signal received quality data (RSRQ) and signal-to-noise ratio and interference ratio data (SINR) corresponding to the neighbor serving cell frequency point through measurement control information transmitted on a Dedicated Control Channel (DCCH). The embodiment of the invention constructs the corresponding interface control signaling by adding the measParamToAddModList field on the basis of the RRC reconfiguration signaling so as to acquire the neighbor cell fault data and the performance index data through the interface control information. Meanwhile, the main serving cell transmits neighbor state information including neighbor fault data (transmission error code, standing wave ratio alarm, service capability decline alarm) and performance index data (PRB utilization, interference noise floor and CPU utilization) through measurement control information constructed by RRC reconfiguration message (radio resource reconfiguration message). Further, the mobile communication terminal measures the information of RSRP, RSRQ, SINR and the like of the neighbor serving cell according to the measurement control information. Then, the mobile communication terminal obtains the neighbor cell with optimal performance through arg max (ncell) weighted calculation according to the neighbor cell fault data and the performance index data carried by the measurement control information, and determines the corresponding target serving cell through the formula (2). Finally, the mobile communication terminal feeds back to the serving cell in the form of PCI through Measurement report, and is triggered by the primary serving cell to switch to the optimal neighbor cell. For example, when in signal testing, the signal strongest neighbor serving cell of the primary serving cell is pci=780 (rsrp= -86 dBm), and the secondary strongest neighbor serving cell is pci=653 (rsrp= -101 dBm). Accordingly, the information such as neighbor fault data, performance index data, neighbor bandwidth and the like obtained from the measurement control information shows that the PRB utilization rate of the strongest neighbor serving cell (pci=780) reaches 96%, the PRB utilization rate is high, and the PRB utilization rate of the next strongest neighbor serving cell (pci=653) is 28%, and the PRB utilization rate is high or low. Therefore, when switching from the main serving cell to the neighbor serving cell, the embodiment of the invention calculates the secondary strong neighbor serving cell (pci=653) as the optimal neighbor cell after analyzing and calculating by combining the data with multiple dimensions, and reports the optimal neighbor cell to the base station to complete the switching. It is easy to understand that the embodiment of the invention can realize the switch autonomy of the mobile communication terminal, switch to the cell with better service perception, effectively reduce the complaint problem, promote the use perception of the target object network, and the mobile communication terminal autonomously switches the optimal cell, thereby alleviating the switch to the high-load and base station fault cell, promoting the resource utilization rate of the base station and the operating value of the base station. In addition, the embodiment of the invention relieves the problem of the current 3GPP protocol that the measurement control information and Xn ports carry neighbor fault data (transmission error code, standing wave ratio alarm, service capability decline alarm) and performance index data (PRB utilization rate, interference bottom noise and CPU utilization rate) information description vacancies by constructing interface control signaling and measurement control information.

Referring to fig. 9, an embodiment of the present invention further provides a mobile communication terminal selection handover system, including:

a first module 810, configured to obtain measurement control information issued by a primary serving cell. The measurement control information comprises neighbor cell fault data and performance index data.

A second module 820, configured to measure signal indicator data of the neighbor serving cell according to the measurement control information.

And a third module 830, configured to calculate, according to the signal indicator data, the neighbor cell failure data, and the performance indicator data, the target neighbor cell information through a preset multi-target optimization algorithm.

A fourth module 840, configured to feed back the target neighbor cell information to the primary serving cell, so as to trigger handover to the corresponding target serving cell through the primary serving cell.

The content of the method embodiment of the invention is suitable for the system embodiment, the specific function of the system embodiment is the same as that of the method embodiment, and the achieved beneficial effects are the same as those of the method.

Referring to fig. 10, an embodiment of the present invention further provides a mobile communication terminal selection handover system, including:

at least one processor 910.

At least one memory 920 for storing at least one program.

When the at least one program is executed by the at least one processor 910, the at least one processor 910 is caused to implement the mobile communication terminal selection handover method as described in the above embodiments.

An embodiment of the present invention also provides a computer-readable storage medium storing computer-executable instructions for execution by one or more control processors, for example, performing the mobile communication terminal selection handover method steps described in the above embodiments.

The terms "first," "second," "third," "fourth," and the like in the description of the present application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in this application, "at least one" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

The step numbers in the above method embodiments are set for convenience of illustration, and the order of steps is not limited in any way, and the execution order of the steps in the embodiments may be adaptively adjusted according to the understanding of those skilled in the art.

While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.

Claims

1. A mobile communication terminal selection switching method, comprising the steps of:

2. The mobile communication terminal selection handover method according to claim 1, wherein the measured control information is determined by:

constructing a radio resource reconfiguration message;

3. The mobile communication terminal selection handover method according to claim 1, wherein the obtaining the neighbor cell failure data and the performance index data through a preset interface comprises:

4. The mobile communication terminal selection handover method according to claim 1, wherein the measuring signal index data of the neighbor serving cell according to the measurement control information comprises:

5. The mobile communication terminal selection handover method according to claim 4, wherein the calculating, according to the signal index data, the neighbor cell failure data, and the performance index data, the target neighbor cell information by a preset multi-target optimization algorithm includes:

6. The mobile communication terminal selection handover method according to claim 5, wherein the determining the target neighbor information according to the weight data comprises:

constructing a weight array, and storing the weight data into the weight array;

7. The method for selecting and switching a mobile communication terminal according to claim 6, wherein the feeding back the target neighbor information to the primary serving cell to trigger switching to a corresponding target serving cell through the primary serving cell comprises:

8. A mobile communication terminal selection switching system, comprising:

9. A mobile communication terminal selection switching system, comprising:

at least one processor;

at least one memory for storing at least one program;

when the at least one program is executed by the at least one processor, the at least one processor is caused to implement the mobile communication terminal selection handover method as claimed in any one of claims 1 to 7.

10. A computer storage medium in which a processor-executable program is stored, characterized in that the processor-executable program is for realizing the mobile communication terminal selection handover method according to any one of claims 1 to 7 when being executed by the processor.