CN113747523A

CN113747523A - Cell residence selection method and user equipment

Info

Publication number: CN113747523A
Application number: CN202010482225.0A
Authority: CN
Inventors: 唐晨; 付细平; 宋建港
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-12-03
Anticipated expiration: 2040-05-29
Also published as: CN113747523B

Abstract

The embodiment of the application provides a cell residence selection method and user equipment, wherein the method comprises the following steps: when the UE starts an LTE network selection process, if a prior information list is not empty, the UE executes a frequency point search process on a plurality of frequency points in the prior information list, wherein the frequency point search process comprises the following steps: the UE sequences the multiple frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence; and the UE searches the cells in sequence according to the frequency point sequence of the second sequence, and stops cell search if the cells meeting the residence condition are searched, and resides the cells meeting the residence condition. The technical scheme provided by the application has the advantage of high user experience.

Description

Cell residence selection method and user equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a cell camping selection method and a user equipment.

Background

The Evolution of 5G is divided into two stages, namely Non-Standalone Networking (NSA) and Standalone networking (SA), where NSA is implemented by dual connectivity between Long Term Evolution (LTE) and New Radio (NR), where dual connectivity refers to that a UE connects two network nodes simultaneously in a connected state. Two network nodes, a Master Node (MN) and a Secondary Node (SN), are doubly connected. Wherein the MN can act as an anchor point and at least the MN is to be connected to the core network. The ENDC (E-UTRA-NR Dual Connectivity connected to the EPC) refers to an NSA network mode in which an LTE cell is used as an MN and an NR cell is used as an SN, in the current 5G network deployment stage, the 5G network deployment mainly takes the NSA mode of the ENDC as a main part, but current operators do not configure all LTE cells to support the ENDC, only use cells of partial frequency bands as anchor points for configuring and supporting the ENDC, and simultaneously, terminals do not support double connection of all LTE frequency bands and NR frequency bands and only support double connection of partial LTE frequency bands and NR frequency bands, so when the terminals select networks to reside under LTE, the terminals may reside in cells in which the networks do not support the ENDC or the terminals do not support the ENDC frequency bands, and thus the 5G service cannot be used.

Disclosure of Invention

The embodiment of the application discloses a cell residing selection method, which utilizes historical information to preferentially reside in a cell capable of providing NSA service, so that a terminal user can use a 5G network as much as possible, and user experience is better improved.

In a first aspect, a method for selecting cell camping is provided, where the method is applied to a user equipment UE, and the method includes the following steps:

when the UE starts an LTE network selection process, if a prior information list is not empty, the UE executes a frequency point search process on a plurality of frequency points in the prior information list, wherein the frequency point search process comprises the following steps:

the UE sequences the multiple frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence;

the UE searches cells in sequence according to the frequency point sequence of the second sequence, stops cell search if the cells meeting the residence condition are searched, and resides the cells meeting the residence condition;

the frequency points with high priority are as follows: the UE historically resides in the frequency point cell, the network configures ENDC on the frequency point when the UE resides in the frequency point cell, and plmn corresponding to the frequency point belongs to target plmn of the network selection process.

In a second aspect, a user equipment UE is provided, the user equipment UE comprising:

a processing unit, configured to, when an LTE network selection procedure is started, execute a frequency point search procedure on multiple frequency points in a prior information list if the prior information list is not empty,

the arrangement unit is used for sequencing the multiple frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence;

the processing unit is further used for sequentially searching the cells according to the frequency point sequence of the second sequence, stopping cell search if the cells meeting the residence condition are searched, and residing the cells meeting the residence condition;

In a third aspect, there is provided a terminal comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps of the method of the first aspect.

A fourth aspect of embodiments of the present application discloses a computer-readable storage medium, which is characterized by storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method of the first aspect.

A fifth aspect of embodiments of the present application discloses a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps as described in the first aspect of embodiments of the present application. The computer program product may be a software installation package.

By implementing the embodiment of the application, when the UE starts an LTE network selection process, if a prior information list is not empty, the UE executes a frequency point search process on a plurality of frequency points in the prior information list, and sequences the frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence; and the UE searches the cells in sequence according to the frequency point sequence of the second sequence, and stops cell search if the cells meeting the residence condition are searched, and resides the cells meeting the residence condition. Because the frequency points with high priority are arranged in the front in the second sequence, and the frequency points with high priority can be the frequency points configured with ENDC, the possibility of residing the frequency points is high, and the frequency points configured with ENDC can provide a 5G network for the UE, so the technical scheme of the application preferentially resides in a cell capable of providing NSA service by utilizing the historical information, thereby enabling the terminal user to use the 5G network as far as possible, and simultaneously, the network selection residence time does not need to be additionally increased, and the user experience is better improved.

Drawings

The drawings used in the embodiments of the present application are described below.

FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

fig. 1a is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 2 is a flowchart illustrating a cell camping selection method according to an embodiment of the present application;

fig. 3 is a flowchart illustrating a cell camping selection method according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a method for maintaining a prior information list according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an apparatus provided in an embodiment of the present application.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

The term "and/or" in this application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The "plurality" appearing in the embodiments of the present application means two or more. The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application. The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.

A terminal in the embodiments of the present application may refer to various forms of UE, access terminal, subscriber unit, subscriber station, mobile station, MS (mobile station), remote station, remote terminal, mobile device, user terminal, terminal device (terminal equipment), wireless communication device, user agent, or user equipment. The terminal device may also be a cellular phone, a cordless phone, an SIP (session initiation protocol) phone, a WLL (wireless local loop) station, a PDA (personal digital assistant) with a wireless communication function, a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN (public land mobile network, chinese), and the like, which are not limited in this embodiment.

Referring to fig. 1, fig. 1 provides a schematic diagram of a network architecture, such as the one shown in fig. 1, including: user equipment UE, MN and SN; the UE connects to the MN and the SN at the same time, and the connection mode includes but is not limited to: LTE or NR.

Referring to fig. 1a, fig. 1a is a schematic structural diagram of a user equipment or a terminal disclosed in an embodiment of the present application, where the terminal 100 includes a storage and processing circuit 110 and a sensor 170 connected to the storage and processing circuit 110, the sensor 170 may include a camera, a distance sensor, a gravity sensor, and the like, the electronic equipment may include two transparent display screens, the transparent display screens are disposed on a back surface and a front surface of the electronic equipment, and part or all of components between the two transparent display screens may also be transparent, so that the electronic equipment may be a transparent electronic equipment in terms of visual effect, and if part of the components are transparent, the electronic equipment may be a hollowed-out electronic equipment. Wherein:

the terminal 100 may include control circuitry, which may include storage and processing circuitry 110. The storage and processing circuitry 110 may be a memory, such as a hard drive memory, a non-volatile memory (e.g., flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), a volatile memory (e.g., static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. Processing circuitry in the storage and processing circuitry 110 may be used to control the operation of the terminal 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

The storage and processing circuitry 110 may be used to run software in the terminal 100, such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) telephone call application, an email application, a media playing application, operating system functions, and so forth. Such software may be used to perform control operations such as camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., layered) display screens, operations associated with performing wireless communication functionality, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the terminal 100, to name a few, embodiments of the present application are not limited.

The terminal 100 may include an input-output circuit 150. The input-output circuit 150 may be used to enable the terminal 100 to input and output data, i.e., to allow the terminal 100 to receive data from external devices and also to allow the terminal 100 to output data from the terminal 100 to external devices. The input-output circuit 150 may further include a sensor 170. Sensor 170 vein identification module, can also include ambient light sensor, proximity sensor based on light sum electric capacity, fingerprint identification module, touch sensor (for example, based on light touch sensor and/or capacitanc touch sensor, wherein, touch sensor can be touch-control display screen's partly, also can regard as a touch sensor structure independent utility), acceleration sensor, the camera, and other sensors etc. the camera can be leading camera or rear camera, fingerprint identification module can integrate in the display screen below, a fingerprint image is used for gathering, fingerprint identification module can be: optical fingerprint module, etc., and is not limited herein. The front camera can be arranged below the front display screen, and the rear camera can be arranged below the rear display screen. Of course, the front camera or the rear camera may not be integrated with the display screen, and certainly in practical applications, the front camera or the rear camera may also be a lifting structure.

Input-output circuit 150 may also include one or more display screens, and when multiple display screens are provided, such as 2 display screens, one display screen may be provided on the front of the electronic device and another display screen may be provided on the back of the electronic device, such as display screen 130. The display 130 may include one or a combination of liquid crystal display, transparent display, organic light emitting diode display, electronic ink display, plasma display, and display using other display technologies. The display screen 130 may include an array of touch sensors (i.e., the display screen 130 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.

The terminal 100 can also include an audio component 140. Audio component 140 may be used to provide audio input and output functionality for terminal 100. The audio components 140 in the terminal 100 may include a speaker, a microphone, a buzzer, a tone generator, and other components for generating and detecting sound.

The communication circuit 120 can be used to provide the terminal 100 with the capability to communicate with external devices. The communication circuit 120 may include analog and digital input-output interface circuits, and wireless communication circuits based on radio frequency signals and/or optical signals. The wireless communication circuitry in communication circuitry 120 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in Communication circuitry 120 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuit 120 may include a near field communication antenna and a near field communication transceiver. The communications circuitry 120 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuitry and antenna, and so forth.

The terminal 100 may further include a battery, a power management circuit, and other input-output units 160. The input-output unit 160 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, and the like.

A user may input commands through input-output circuitry 150 to control operation of terminal 100 and may use output data of input-output circuitry 150 to enable receipt of status information and other outputs from terminal 100.

Referring to fig. 2, fig. 2 provides a cell camping selection method, which is applied under the network architecture shown in fig. 1, and the method is executed by a UE under the network architecture shown in fig. 1, where the UE may be in the terminal structure shown in fig. 1a, and of course, in practical application, other terminal structures may also be adopted, and the method includes the following steps:

step S201, when UE starts an LTE network selection process, if a prior information list is not empty, the UE executes a frequency point search process on a plurality of frequency points in the prior information list; the frequency point searching process may include:

the LTE network selection process may be defined in section 5.2.3 of the 36.304 protocol, and is not described herein again. The prior Information list is for the UE to fast reside in a Cell, and generally a round of prior Information search (Stored Information Cell Selection) is performed first, and the frequency points in the prior Information list mainly comprise frequency points where history resides and frequency points where measurement is configured.

Step S202, the UE sequences a plurality of frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence;

the frequency point priorities may include: high priority frequency points, medium priority frequency points and low priority frequency points.

Step S203, the UE searches cells in sequence according to the frequency point sequence of the second sequence, if the cells meeting the residence condition are searched, the cell search is stopped, and the cells meeting the residence condition are resided;

the operation of searching for the cell may refer to the description of the protocol, which is not described herein.

According to the technical scheme, when the UE starts an LTE network selection process, if a prior information list is not empty, the UE executes a frequency point search process on a plurality of frequency points in the prior information list, and sequences the frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence; and the UE searches the cells in sequence according to the frequency point sequence of the second sequence, and stops cell search if the cells meeting the residence condition are searched, and resides the cells meeting the residence condition. Because the frequency points with high priority are arranged in the front in the second sequence, and the frequency points with high priority can be the frequency points configured with ENDC, the possibility of residing the frequency points is high, and the frequency points configured with ENDC can provide a 5G network for the UE, so the technical scheme of the application preferentially resides in a cell capable of providing NSA service by using the historical information, thereby enabling the terminal user to use the 5G network as much as possible, and better improving the user experience.

In an optional scheme, the sequencing the multiple frequency points according to a preset rule to obtain a first sequence specifically includes:

and the UE performs pre-sequencing on all frequency points according to the signal intensity from high to low to obtain a pre-sequence, and adjusts the frequency points supporting ENDC of the UE in the pre-sequence to the front of the queue to obtain a first sequence.

In an optional scheme, the frequency points in the first sequence are rearranged according to the priority of the frequency points to obtain a second sequence:

arranging the frequency points of the first sequence according to a high priority, a medium priority and a low priority to obtain a second sequence;

the frequency points of the medium priority are as follows: frequency points where the UE does not reside;

the frequency points of low priority are: the UE historically resides in the frequency point cell but the network is not configured with ENDC; and plmn corresponding to the frequency point belongs to the frequency point of the target plmn of the current network selection process.

According to the scheme, the frequency points in the first sequence are rearranged according to the high, medium and low priorities to obtain the second sequence, so that the frequency points with high priorities can be ahead, and the cell search is preferentially performed on the frequency points with high priorities.

In the following, a practical example is described, and it is assumed that the order of the first sequence is, frequency point a, frequency point B, frequency point C, and frequency point D; wherein, frequency point B and frequency point C are high priority frequency points, frequency point D is a medium priority frequency point, and frequency point a is a low priority frequency point, then the order of obtaining the second sequence in the arrangement can be as follows: frequency point B, frequency point C, frequency point D and frequency point A. That is, the frequency point sequence for executing the cell search may be: frequency point B, frequency point C, frequency point D and frequency point A.

In an optional aspect, the method further includes:

if the prior information list is empty or no suitable cell residence is found after the frequency point search of the prior information list is completed, the UE executes a full band search process and executes a frequency band search process for a plurality of frequency bands of the full band search process, wherein the frequency band search process comprises the following steps:

sequencing the plurality of frequency bands to obtain a third sequence; rearranging the frequency bands in the third sequence according to the frequency band priority to obtain a fourth sequence;

the UE searches the cells in sequence according to the frequency band sequence of the fourth sequence, stops cell search if the cells meeting the residence condition are searched, and resides the cells meeting the residence condition;

the high-priority frequency band is as follows: the UE historically resides in the frequency band cell, the network configures ENDC on the frequency band when the UE resides in the frequency band cell, and plmn corresponding to the frequency band belongs to target plmn of the network selection process.

According to the scheme, the frequency bands in the third sequence are rearranged according to the high, medium and low priorities to obtain the fourth sequence, so that the frequency band with the high priority can be ahead, and the cell search is preferentially performed on the frequency band with the high priority.

In the following, a practical example is described, and it is assumed that the third sequence has the sequence of frequency band E, frequency band F, frequency band G, and frequency band H; wherein, the frequency band H is a high priority frequency band, the frequency bands E and F are medium priority frequency bands, and the frequency band G is a low priority frequency band, then the order of obtaining the fourth sequence by the arrangement may be: frequency band H, frequency band E, frequency band F, and frequency band G. That is, the frequency point sequence for executing the cell search may be: frequency band H, frequency band E, frequency band F, and frequency band G.

In an optional scheme, the sorting the plurality of frequency bands to obtain a third sequence; rearranging the frequency bands in the third sequence according to the frequency band priority to obtain a fourth sequence specifically comprises:

the UE performs pre-sequencing on all frequency bands according to the signal intensity from high to low to obtain a pre-frequency band sequence, adjusts the frequency bands supporting ENDC of the UE in the pre-frequency band sequence to the front of a queue to obtain a third sequence, and arranges the frequency bands of the third sequence according to high priority, medium priority and low priority to obtain a fourth sequence;

the frequency bands of medium priority are: frequency bands where the UE does not reside;

the low priority frequency bands are: the UE historically resides in the frequency band cell but the network is not configured with ENDC; and plmn corresponding to the frequency band belongs to the frequency band of the target plmn of the current network selection process.

In an optional aspect, the method further includes:

if the prior information list is not empty, the UE does not find a resident cell after executing a search process on the multiple frequency points in the prior information list, the UE executes a full band search process, and executes a frequency band search process on the multiple frequency bands of the full band search process.

In an optional aspect, the method further includes:

and if the UE does not successfully reside in the cell, the UE determines that the LTE network selection fails.

In an optional aspect, the method may further include:

if the UE successfully camps on a new LTE cell (including camping on the new cell in a network selection, reselection, handover, etc.), it needs to store the frequency point, frequency band, plmn, and state (which may specifically include whether the enb is configured or not) information of the current cell (i.e., the new LTE cell) into the prior information list, and meanwhile, if the current cell is configured with a neighboring cell measurement relationship, it stores the frequency point, frequency band, plmn (recorded as the same plmn of the current serving cell) of the neighboring cells and the state (unknown) into the prior information list, which can be used as the next LTE network selection of the UE.

Example one

Referring to fig. 3, fig. 3 provides a cell camping selection method, which is applied under the network architecture shown in fig. 1, and the method is executed by a UE under the network architecture shown in fig. 1, where the UE may be in the terminal structure shown in fig. 1a, and of course, in practical applications, other terminal structures may also be adopted, and the method includes the following steps:

step S301, the UE starts the LTE network selection process.

Step S302, the UE checks whether the prior information list is empty, if the prior information list is empty, the step S305 is skipped to directly carry out the full band cell searching process, and if the prior information list is empty, the step S303 is entered to sequence the frequency points in the prior information list.

The storage format of the terminal prior information list is shown in table 1, and one record includes a frequency point number, a band number, a network number, and whether information such as endic is configured, where the band number is a band corresponding to a frequency point, and the network number is an operator plmn number configured by a cell network on the frequency point, such as a china mobile: 46000, china unicom: 46001, China telecom: 46011, etc., whether ENDC has been configured includes three types: the configured ENDC means that the network on the cell history of the frequency point has configured ENDC, the unconfigured ENDC means that the network on the cell history of the frequency point has never configured ENDC, and the unconfigured ENDC means that the terminal has not resided in the cell of the frequency point (the frequency points are mainly added into a prior information list in the modes of adjacent cell frequency points and the like), so whether the network can be configured with ENDC is uncertain.

Note: if there are multiple plmn at a frequency point, it will be stored in multiple records, for example, if there are 46000 and 46001 cells on the frequency point 1650 in table 1, it will be stored in two records.

TABLE 1. Prior information frequency point recording table

Frequency point	Band	Network number (PLMN)	Whether ENDC is configured or not
				100	1	46011	Is unknown
1650	3	46001	Not provided with end c
				1650	3	46000	Configured endc
37900	38	46000	Not provided with end c
				…	…	…	…

S303, sequencing the prior information list according to a preset rule;

the preset rule may specifically include: firstly, all frequency points in the prior information list are sorted in a first round from high to low according to signal intensity. And adjusting the frequency points of the terminal supporting ENDC to the front of the queue for second round sequencing on the basis of the first round of sequencing. On the basis of the second round of sequencing, the frequency points in the prior information are subjected to third round of sequencing according to the following three types of priorities: the first priority frequency point is a frequency point which is resided in the frequency point cell historically by the terminal and in which the network configures ENDC while plmn corresponding to the frequency point belongs to the target plmn required by the network selection, and the third priority frequency point is a frequency point which is resided in the frequency point cell before the terminal but in which the network does not configure ENDC and in which the plmn corresponding to the frequency point belongs to the target plmn required by the network selection. The other frequency bins are of a second priority (mainly some frequency bins that have not previously resided in the network without determining whether the network will be configured with an endec).

Step S304, the UE searches cells in sequence for the frequency points sequenced in the step S303, if the cells meeting the residence condition are found, the search is stopped, the network selection in the skipping step S308 is successfully finished, otherwise, the cell search is continued for the next frequency point in the prior information list, and if all the frequency points in the prior information list are searched, the cells meeting the residence condition are not found, the skipping step S305 is carried out to carry out a full band cell search process.

Step S305, the UE starts a full band search process, and first sorts all bands supported by the terminal according to step S306.

Step S306, the UE sorts the LTE bands supported by the terminal according to a set rule;

the setting rule may specifically include: first round sorting is carried out on all LTE bands supported by the terminal according to the signal strength from high to low. And adjusting the band of the terminal supporting ENDC to the front of the queue for the second round of sorting on the basis of the first round of sorting. And on the basis of the second round of sequencing, carrying out third round of sequencing on the LTE bands supported by the terminal according to the following three types of priorities: the first priority band is the band where the terminal previously resided in the band cell and the network configured the endec on the band while camping while the plmn corresponding to the band belongs to the target plmn required by the network selection, and the third priority band is the band where the terminal previously resided in the band cell but the network not configured the endec and the plmn corresponding to the band belongs to the target plmn required by the network selection. The other bands are of a second priority (mainly some bands that did not previously reside without determining whether the network would configure the endec).

And Step S307, sequentially searching the sorted bands in the Step S306 for the cells on the corresponding bands, stopping searching if the cells meeting the residence condition are found, jumping to Step8 for successful network selection residence, otherwise continuing to search the next band for the cells, and ending the network selection failure in the Step S309 if all the bands supported by the terminal are searched and the cells meeting the residence condition are not found.

And S308, successfully residing, and successfully selecting the network under the LTE.

And S309, failing to select the network under the LTE.

Referring to fig. 4, fig. 4 provides a method for maintaining the prior information list, as shown in fig. 4, the flow is described as follows:

step1, when the terminal searches a cell under LTE, it first checks whether the frequency point and plmn of the cell are in the prior information frequency point record table, if not, it adds a new record of the frequency point information, and fills in the information of the frequency point, band, network number, whether to configure the endec (the initial type is unknown) and so on. If the table has records of matching bins and plmn, no operation is required.

Step2, when receiving the system message (sib2) on the cell, finding the record corresponding to the frequency point and plmn matched with the cell in the prior information list, and checking whether the record has been configured with the endec field, if so, not doing the operation, otherwise, checking whether the network in the cell sib2 indicates support for endec, if so, updating whether the corresponding record in the prior information list has been configured with the endec field as configured endec, otherwise, updating the record as unconfigured endec.

Step3, when residing in the cell, for the neighboring cell measurement frequency points configured on the cell, checking one by one whether these frequency points and plmn (adopting plmn of the current cell) already exist in the prior-check information list, if not, adding the frequency point record, the network number is filled as the network number of the current cell, and whether the configuration of the ENDC field is initialized to an unknown type. If it is already present, no action is required.

Step4, when the terminal makes service on the cell and enters into a connected state, if the network configures the ENDC, updating whether the ENDC field configured on the frequency point of the cell in the prior information list is configured with the ENDC, otherwise, the operation is not needed.

Referring to fig. 5, fig. 5 provides a user equipment including:

a processing unit 501, configured to, when starting an LTE network selection procedure, if a priori information list is non-empty, perform a frequency point search procedure on multiple frequency points in the priori information list,

the arrangement unit 502 is configured to sequence the multiple frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence;

the processing unit 501 is further configured to sequentially search cells according to the frequency point sequence of the second sequence, stop cell search if a cell meeting the residence condition is searched, and reside a cell meeting the residence condition;

In an alternative arrangement, the first and second electrodes may be,

an arranging unit 502, specifically configured to arrange the frequency points of the first sequence according to a high priority, a medium priority, and a low priority to obtain a second sequence;

In an alternative arrangement, the first and second electrodes may be,

the processing unit 501 is further configured to, if the priori information list is empty, execute a full band search procedure by the UE, execute a frequency band search procedure for multiple frequency bands of the full band search procedure,

the arranging unit 502 is further configured to sequence the multiple frequency bands to obtain a third sequence; rearranging the frequency bands in the third sequence according to the frequency band priority to obtain a fourth sequence;

the processing unit 501 is further configured to sequentially search cells according to the frequency band sequence of the fourth sequence, and stop cell search if a cell meeting the residence condition is searched, and reside a cell meeting the residence condition;

For a specific processing manner of the processing unit and the arrangement unit in the terminal shown in fig. 5, reference may be made to the description of the embodiment shown in fig. 2, which is not described herein again.

Referring to fig. 6, fig. 6 is a device 70 provided in an embodiment of the present application, where the device 70 includes a processor 701, a memory 702, and a communication interface 703, and the processor 701, the memory 702, and the communication interface 703 are connected to each other through a bus 704.

The memory 702 includes, but is not limited to, Random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or portable read-only memory (CD-ROM), and the memory 702 is used for related computer programs and data. The communication interface 703 is used for receiving and transmitting data.

The processor 701 may be one or more Central Processing Units (CPUs), and in the case that the processor 701 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 701 in the device 70 is configured to read the computer program code stored in the memory 702 and perform the following operations:

when an LTE network selection process is started, if a prior information list is not empty, the UE executes a frequency point search process on a plurality of frequency points in the prior information list, wherein the frequency point search process comprises the following steps:

sequencing the multiple frequency points according to a preset rule to obtain a first sequence; rearranging the frequency points in the first sequence according to the priority of the frequency points to obtain a second sequence;

searching cells in sequence according to the frequency point sequence of the second sequence, stopping cell search if the cells meeting the residence condition are searched, and residing the cells meeting the residence condition;

In an optional scheme, the method further comprises the following steps:

if the prior information list is empty, the UE performs a full band search process, and performs a frequency band search process on a plurality of frequency bands of the full band search process, where the frequency band search process includes:

In an optional scheme, the obtaining of the first sequence by sequencing the multiple frequency points according to a preset rule specifically includes:

In an optional scheme, the method further comprises the following steps:

and if the cell is not successfully resided, determining that the LTE network selection fails.

The embodiment of the present application further provides a chip system, where the chip system includes at least one processor, a memory and an interface circuit, where the memory, the transceiver and the at least one processor are interconnected by a line, and the at least one memory stores a computer program; when the computer program is executed by the processor, the method flows shown in fig. 2 and fig. 3 are realized.

An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a network device, the method flows shown in fig. 2 and fig. 3 are implemented.

The embodiments of the present application also provide a computer program product, where when the computer program product runs on a terminal, the method flows shown in fig. 2 and fig. 3 are implemented.

Embodiments of the present application also provide a terminal including a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of the embodiment shown in fig. 2 or fig. 3.

The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It will be appreciated that the electronic device, in order to carry out the functions described above, may comprise corresponding hardware structures and/or software templates for performing the respective functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no acts or templates referred to are necessarily required by the application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A method for selecting cell residence is applied to User Equipment (UE), and comprises the following steps:

2. The method of claim 1, wherein the frequency points in the first sequence are rearranged according to the priority of the frequency points to obtain a second sequence:

3. The method of claim 1, further comprising:

if the prior information list is empty or no suitable cell residence is found after the frequency point in the prior information list is searched, the UE executes a full band search process and executes a frequency band search process on a plurality of frequency bands of the full band search process, wherein the frequency band search process comprises the following steps:

4. The method of claim 1, wherein the sorting the plurality of frequency points according to the preset rule to obtain the first sequence specifically comprises:

5. The method of claim 3, wherein the ordering of the plurality of frequency bins results in a third sequence; rearranging the frequency bands in the third sequence according to the frequency band priority to obtain a fourth sequence specifically comprises:

6. The method of claim 1, further comprising:

7. The method of claim 1, further comprising:

8. A user equipment, UE, characterized in that the UE comprises:

the processing unit is used for executing a frequency point searching process on a plurality of frequency points in the prior information list if the prior information list is not empty when the LTE network selection process is started;

9. The user equipment of claim 8,

the arranging unit is specifically configured to arrange the frequency points of the first sequence according to a high priority, a medium priority and a low priority to obtain a second sequence;

10. The user equipment of claim 8,

the processing unit is further configured to, if the priori information list is empty, execute a full band search procedure by the UE, and execute a frequency band search procedure for a plurality of frequency bands of the full band search procedure;

the arrangement unit is further used for sequencing the plurality of frequency bands to obtain a third sequence; rearranging the frequency bands in the third sequence according to the frequency band priority to obtain a fourth sequence;

the processing unit is further configured to sequentially search the cells according to the frequency band sequence of the fourth sequence, stop cell search if a cell meeting the residence condition is searched, and reside the cell meeting the residence condition;

11. A terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7.

12. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1-7.